Paper feeding method and deformation guiding structure for paper pad

Abstract

Disclosed in the present invention are a paper feeding method and deformation guiding structure for a paper pad. The deformation guiding structure comprises a bracket and a deformation mechanism for folding or bending two side edges of a paper pad toward the middle of the paper pad; alternatively, the deformation guiding structure comprises an outer channel component, an inner channel component, a guide roller, and a bottom roller. The paper feeding method of the present invention is suitable for a non-pre-folded paper pad, and since the width of the non-pre-folded paper pad is large, the paper pads with the width are placed in a single row on a chart along a paper feeding direction, since the paper pad is not pre-folded, the paper pad is a single-layer paper and is thinner compared to a pre-folded double-layer paper pad, so that paper pads with the same length can be stacked vertically to form a plurality of stacks of paper pads. Compared to pre-folded double-layer paper pads, the stacked paper pads are more stable. There is no need to take the complex connection between different rows of paper pads into consideration, without effects from misalignment between stacks of paper pads, and there is no twisting or deformation of the paper pads during feeding. As a result, a paper feeding path for the paper pads remains aligned, ensuring a stable paper feeding.

Description

Paper pad loading method and deformation guiding structure Technical Field

[0001] The invention relates to a paper loading method and a deformation guiding structure of a paper pad. Background Art

[0002] During logistics transportation, items will be cushioned and packaged, and cushioning materials will be placed in packaging boxes or bags. Pillow-shaped three-dimensional paper pads are one of them. Pillow-shaped three-dimensional paper pads are produced by paper pad forming machines. Paper pad forming machines mainly include three main structures: feeding, forming, and discharging. Among them, the feeding structure will guide the paper material to form a certain three-dimensional shape, and the forming structure (two forming gears arranged up and down) will pull the paper material to move in the paper pad forming machine, and at the same time shape the three-dimensional paper material. The discharging structure will transport the shaped three-dimensional paper pad out. The feeding structure is provided with a flow channel structure, which includes an outer flow channel and an inner flow channel. After the paper material is fed, it will enter between the outer flow channel and the inner flow channel. The outer flow channel and the inner flow channel will guide the paper material to form a certain three-dimensional shape, and then transport it to the forming structure for processing. After the processing is completed, the three-dimensional paper pad is discharged from the discharging end of the discharging structure.

[0003] Since the pillow-shaped three-dimensional paper pad finally presents a double-layered, wrinkled three-dimensional structure, part of its raw materials are single-layer paper materials with a relatively large width (referred to as "paper pads"). The paper pads are guided by a paper pad forming machine to form a buffering three-dimensional structure with a certain thickness and a smaller width. However, since the raw material itself is relatively wide, the guiding deformation structure of the paper pad forming machine occupies a relatively large volume, resulting in a larger overall volume of the paper pad forming machine. On the one hand, it occupies more space, and on the other hand, it is inconvenient to carry and move.

[0004] To overcome the problem of the large size of paper pad forming machines, the raw materials are currently pre-folded. That is, the raw materials are composed of a middle surface and folding surfaces located on both sides of the middle surface. The two folding surfaces are folded toward the middle surface, and the edges of the two folding surfaces are spaced, aligned, or overlapped. This greatly reduces the width of the raw materials, thereby reducing the volume of the equipment's guiding deformation structure and reducing the overall volume of the equipment. Currently, due to the different raw materials, including single-layer paper pads and pre-folded paper, there are paper pad forming machines specifically designed for raw materials such as paper pads, and paper pad forming machines specifically designed for raw materials such as pre-folded paper. These two types of paper pad forming machines cannot be used interchangeably. Users cannot choose different types of paper materials for production and processing based on the cost and demand of the raw materials, resulting in poor applicability and lack of flexibility. In addition, the pre-folded raw materials are simultaneously folded and stacked in a fan shape to form a stack of continuous paper pads (referred to as "a stack of paper pads"), and the multiple stacks of paper pads are placed on a cart. Since the width of the pre-folded raw materials is reduced, the multiple stacks of paper pads can be placed in two rows along the paper-loading direction of the paper pads on a conventional cart, with multiple stacks of paper pads in each row, and the heads and tails of the two adjacent stacks of paper pads are connected in advance in sequence to facilitate continuous feeding.

[0005] At present, when multiple stacks of paper pads are placed on a cart, they are placed in two rows along the paper-loading direction due to their narrow width. However, when the paper pads between different rows are connected head to tail, there are problems of angle bending or misalignment. On the one hand, it is very difficult to connect the paper pads between different rows head to tail. On the other hand, after the paper pads between different rows are connected head to tail, the paper pads are twisted and deformed when loading paper, which causes the paper-loading path of the paper pads to be offset, resulting in instability of the paper-loading path of the paper pads, and reducing the consistency of the paper pad forming. In addition, when connecting two adjacent stacks of paper pads, some are connected by sticking double-sided tape or applying glue on the head or tail of the paper pad along the pre-folding line, and some are connected by folding the head and / or tail of the paper pad, plugging the heads and tails of the two stacks of paper pads together, and then applying glue or sticking double-sided tape at the plugging position for connection. The above operations are relatively cumbersome and troublesome, resulting in low connection efficiency of the two adjacent stacks of paper pads, and the operation difficulty is also increased in order to align the heads and tails of the two stacks of paper pads.

[0006] In addition, when the existing paper pad forming machine processes paper pads or pre-folded paper, the paper pads or pre-folded paper are usually stacked upstream of the paper inlet of the paper pad forming machine, which takes up a large area of ​​the site.

[0007] Therefore, how to overcome the above technical deficiencies is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0008] The object of the present invention is to provide a paper loading method and a deformation guiding structure for a paper pad, so as to solve at least one of the above-mentioned technical problems.

[0009] According to one aspect of the present invention, a method for loading paper onto a paper pad is provided, comprising the following steps:

[0010] a. Place at least one stack of unpre-folded continuous paper pads on the cart, and when the number of stacks of paper pads is multiple, the stacks of paper pads are arranged front and back along the direction of the paper pads;

[0011] b. The head of the paper pad on the cart starts to be transported;

[0012] c. Deforming the two sides of the paper pad so that the two sides of the paper pad are folded or bent toward the middle of the paper pad;

[0013] d. The deformed paper pad enters the paper pad forming machine, which makes the paper pad into a three-dimensional cushioning paper pad.

[0014] The paper feeding method of the present invention is suitable for non-prefolded paper pads. Since the non-prefolded paper pads are relatively wide, paper pads of this width are placed in a row on the cart along the paper feeding direction of the paper pads. Moreover, since they are not prefolded, the paper pads are single-layer paper, which is thinner than the double-layer paper pads of prefolded paper. Therefore, paper of the same length can be stacked in the height direction to form multiple stacks of paper pads, and the stacking is more stable than the double-layer paper pads of prefolded paper. Moreover, since the non-prefolded paper pads are placed in a row on the cart along the paper feeding direction of the paper pads, there is no need to consider the cumbersome connection problem between paper pads in different rows, and they are not affected by the misaligned connection of the paper pad stacks. There is no twisting and deformation of the paper pads during paper feeding, so that the paper feeding path of the paper pad will not be offset, and the transportation during paper feeding is more stable. After the head of the paper pad on the cart starts to be transported, the paper pad is deformed to form a paper pad with a narrower width, so that it can directly enter the paper pad forming machine for the production of a three-dimensional buffer paper pad, which is very convenient.

[0015] In some embodiments, in step a, when there are multiple stacks of paper pads on the cart in the vertical direction, the tail of the upper stack is bonded to the head of the adjacent lower stack, so that each stack of paper pads is a continuous, unfolded paper pad. Thus, paper of the same length can be stacked in the vertical direction to form multiple stacks of paper pads. Compared to double-layered prefolded paper pads, the stacked paper pads are more stable. Furthermore, the tails and heads of the stacked stacks are directly bonded together to form a continuous paper pad, eliminating the need for applying double-sided tape or applying glue along the prefolding line for connection, and eliminating the need for folding the head or tail of the paper pads. This simplifies operation and ensures stable transportation.

[0016] In some embodiments, in step a, when there are multiple stacks of paper pads arranged front to back along the paper pad loading direction, the tail of the stack closest to the paper pad forming machine in each of two stacks can be bonded to the head of the next stack farther from the paper pad forming machine. Thus, the tails and heads of the multiple stacks of paper pads arranged front to back along the paper pad loading direction are directly bonded together to form a continuous paper pad. This prevents paper pad loading from being affected by misaligned connections, and prevents twisting and deformation of the paper pads during loading. This ensures that the paper pad loading path does not deviate, resulting in more stable paper transport. Connecting multiple stacks of paper pads laterally on the cart is also very simple.

[0017] In some embodiments, in step a, when there are multiple stacks of paper pads arranged front to back along the paper pad loading direction and there are also multiple stacks of paper pads on the cart in the height direction, the tail of the upper stack of paper pads can be bonded to the head of the adjacent lower stack of paper pads, and the tail of the lowest stack of paper pads near the paper pad forming machine can be bonded to the head of the adjacent highest stack of paper pads away from the paper pad forming machine. Thus, the tails and heads of the multiple stacks of paper pads stacked up and down are directly bonded together to form a continuous paper pad, and the tails and heads of the multiple stacks of paper pads arranged front to back along the paper pad loading direction are also directly bonded together to form a continuous paper pad. In this way, paper loading will not be affected by the misaligned connection of the paper pad stacks, and there will be no twisting and deformation of the paper pads during paper loading, ensuring that the paper pad loading path will not deviate, and paper feeding is more stable. The connection operation between the multiple stacks of paper pads in the horizontal and vertical directions on the cart is very simple.

[0018] In some embodiments, the bonding method may include gluing, taping, or adhesive tape attached to the paper pad. Thus, the tails and heads of multiple stacks of paper pads stacked vertically can be bonded together by gluing, taping, or adhesive tape, making it very easy to connect the stacks. Furthermore, the tails and heads of multiple stacks of paper pads arranged front to back along the paper pad loading direction can be bonded together by gluing, taping, or adhesive tape, making it very easy to connect the stacks of paper pads arranged front to back.

[0019] In some embodiments, in step a, the same stack of unfolded, continuous paper pads can be divided into multiple stacks and placed on a cart, with the multiple stacks arranged front to back along the paper pad loading direction. Thus, adjacent stacks arranged front to back along the paper pad loading direction belong to the same stack and do not need to be adhesively connected.

[0020] According to another aspect of the present invention, there is further provided a deformation guiding structure, comprising:

[0021] stents; and

[0022] The deformation mechanism is used for folding or bending the two side edges of the paper pad toward the middle of the paper pad, and the deformation mechanism is arranged on the bracket.

[0023] The deformation guide structure of the present invention is suitable for paper pads with a larger width that have not been pre-folded. Under the action of the deformation mechanism, the two sides of the paper pad that has not been pre-folded and has a larger width are folded or bent toward the middle of the paper pad, thereby forming a paper pad with a narrower width. The deformation guide structure of the present invention can be used as a supplementary structure for the current paper pad forming machine that directly processes pre-folded paper pads. According to needs, the existing paper pad forming machine can directly process and shape the pre-folded paper pad (without the need for a deformation guide mechanism), and can also connect the deformation guide structure to process and shape the wide single-layer paper pad that has not been pre-folded, thereby increasing the existing direct The applicability of the paper pad forming machine for processing pre-folded paper pads enables the existing paper pad forming machine to meet the needs of two types of paper materials (wider non-pre-folded paper materials and narrower pre-folded paper materials) without affecting the volume of the paper pad forming machine body. When the existing paper pad forming machine is connected to the deformation guide structure of the present invention to process and form non-pre-folded wide single-layer paper pads, there is no need to consider the cumbersome connection problems between different rows of paper pads, and it is not affected by the misaligned connection of the paper pad stack. There is no twisting deformation of the paper pad when loading paper, so that the paper loading path of the paper pad will not be offset, and the transportation is more stable when loading paper.

[0024] In some embodiments, the deformation mechanism may include a guide roller, a depression portion, a deformation portion, and a discharge port.

[0025] The pressing part is located between the guide roller and the discharge port, and the guide roller is higher than the plane where the pressing part is located.

[0026] The width of the discharge port is smaller than the length of the guide roller.

[0027] The deformation part is located between the guide roller and the discharge port, and the deformation part can guide the two side edges of the paper pad to fold or bend toward the middle of the paper pad.

[0028] As a result, the non-pre-folded paper pad with a larger width passes over the guide roller from above and is transported from under the pressing part to the discharge port. Since the width of the discharge port is smaller than the length of the guide roller, under the action of the deformation part, the two side edges of the paper pad will be folded or bent toward the middle of the paper pad, so that the paper pad output from the discharge port is a pre-folded paper pad with two folding surfaces folded toward the middle surface, thereby forming a paper pad with a narrower width. After the existing paper pad forming machine is connected to the discharge port of the deformation mechanism, the paper pad forming machine can directly process and form the non-pre-folded wide single-layer paper pad.

[0029] In some embodiments, the deformation portion includes a guide portion and a flange portion.

[0030] The guide part is located between the guide roller and the discharge port. The guide part can guide the two sides of the paper pad to fold or bend toward the middle of the paper pad.

[0031] The flanging portion is located between the guide portion and the discharge port, the lowest point of the flanging portion is lower than the lowest point of the guide portion, and the flanging portion can further fold or bend both sides of the paper pad toward the middle of the paper pad.

[0032] As a result, the non-pre-folded paper pad with a larger width passes over the guide roller and is transported from the bottom of the pressing part to the discharge port. Since the width of the discharge port is smaller than the length of the guide roller, under the action of the guide part, the two side edges of the paper pad will be folded or bent toward the middle of the paper pad. Then, under the action of the flange part, the two side edges of the paper pad continue to be compressed and deformed, and further folded or bent toward the middle of the paper pad, so that the paper pad output from the discharge port is a pre-folded paper pad with two folding surfaces folded toward the middle surface, thereby forming a paper pad with a narrower width. After the existing paper pad forming machine is connected to the discharge port of the deformation mechanism, the paper pad forming machine can directly process and form the non-pre-folded wide single-layer paper pad.

[0033] In some embodiments, the deformation mechanism may further include a side guide portion, which is provided on the guide portion and arranged at an obtuse angle to the guide portion. The side guide portion can drive the two side edges of the paper pad to fold or bend toward the middle of the paper pad.

[0034] Therefore, since the side guides are arranged at an obtuse angle to the guide portion, the two side edges of the paper pad will be guided to bend under the action of the side guides, so that the two side edges of the paper pad are folded or bent toward the middle of the paper pad.

[0035] In some embodiments, the deformation mechanism may further include a pressing portion, which is located between the flanging portion and the discharge port. The lowest point of the pressing portion is lower than the lowest point of the flanging portion. The pressing portion can press down on the two side edges of the paper pad that are folded or bent toward the middle to further deform the two side edges of the paper pad.

[0036] As a result, the portion of the paper pad that is folded or bent toward the middle will be pressed down by the edge pressing portion, so that both sides of the paper pad are further deformed.

[0037] In some embodiments, the discharge port may be provided with two pressing rollers distributed up and down with adjustable spacing.

[0038] When the deformed paper pad passes between the two pressing rollers, the two pressing rollers can indent and shape the deformed paper pad.

[0039] Thus, under the pressing action of the two pressing rollers, the deformed paper pad is shaped to form a stable pre-folded paper pad with a narrow width. The distance between the two pressing rollers can be adjusted to accommodate paper pads of different thicknesses.

[0040] In some embodiments, a frame may be further included, the deformation mechanism is provided on the frame, and the frame is provided on the bracket.

[0041] The guide roller is located on one side of the frame, and the discharge port is located on the other side of the frame.

[0042] The frame is provided with a separation rod for separating the two sides of the paper pad, and the bottom of the separation rod is provided on the pressing part.

[0043] A first guide roller is provided in the frame body and is located between the guide roller and the end of the depression portion.

[0044] Thus, the first guide roller can guide the paper pad to smoothly enter the lower part from above the guide roller, and the separation rod can make the two sides of the paper pad fold or bend toward the middle with nearly equal size, ensuring the consistency of the pre-folding of the paper pad.

[0045] In some embodiments, a bottom of the first guide roller may be flush with a bottom of the depressed portion.

[0046] Thus, in this case, it is possible to prevent the edge of the depressed portion from causing cross-cutting force damage to the paper pad.

[0047] In some embodiments, the deformation mechanism may include a guide roller, a bottom roller, and a flow channel.

[0048] The guide roller and bottom roller are both located at the entrance of the flow channel, and the guide roller is located obliquely above the bottom roller.

[0049] Both ends of the bottom roller are conical.

[0050] The flow channel converges from the inlet to the outlet.

[0051] As a result, the non-pre-folded paper pad with a larger width passes over the guide roller from above and then enters the flow channel from below the bottom roller. Since the flow channel is in a convergent shape from the inlet to the outlet, under the action of the flow channel, the two side edges of the paper pad will be folded or bent toward the middle of the paper pad, and since both ends of the bottom roller are conical, the two ends of the bottom roller will pre-bend the two side edges of the paper pad, so that the subsequent deformation of the two side edges of the paper pad in the flow channel becomes smoother, and the paper pad output from the outlet of the flow channel is a pre-folded paper pad with a narrower width. After the existing paper pad forming machine is connected to the discharge port of the deformation mechanism, the paper pad forming machine can directly process and form the non-pre-folded wide single-layer paper pad.

[0052] In some embodiments, the flow channel may include a bottom plate and side plates, the width of the bottom plate gradually decreases from the inlet to the outlet, the side plates are arranged on both sides of the bottom plate, the ends of the guide rollers are arranged on the side plates, and the ends of the bottom rollers are arranged on the side plates.

[0053] Therefore, when the paper pad passes through the flow channel, the side plates will drive the two sides of the paper pad to deform, driving the two sides of the paper pad to fold or bend toward the middle of the paper pad, so that the paper pad output from the outlet of the flow channel is a pre-folded paper pad with a narrower width.

[0054] In some embodiments, the side panels may be in a bent shape capable of folding or bending both sides of the paper pad toward the middle of the paper pad.

[0055] Thus, the bent side panels drive the two side edges of the paper pad to fold or bend toward the middle of the paper pad.

[0056] In some embodiments, a rotation adjustment portion for adjusting the pitch angle of the deformation mechanism may be further included, and the rotation adjustment portion is provided between the deformation mechanism and the bracket.

[0057] Therefore, when the existing paper pad forming machine is connected to the deformation guide structure of the present invention, the pitch angle of the deformation mechanism can be adjusted by rotating the adjustment part according to the height of the paper pad forming machine so that the pre-folded paper pad output from the discharge port can smoothly enter the paper pad forming machine.

[0058] In some embodiments, the rotation adjustment part may include a first support frame, a first mounting plate and an adjustment rod. The first support frame is arranged on the top of the bracket, the first mounting plate is arranged on the deformation mechanism, and the first mounting plate is provided with a plurality of plug holes arranged in an arc. The adjustment rod passes through the first support frame and is inserted into the plug hole.

[0059] Therefore, when the adjusting rod is inserted into different insertion holes on the first mounting plate, the pitch angle of the deformation mechanism is different. According to the height of the paper pad forming machine, the adjusting rod can be inserted into a suitable insertion hole on the first mounting plate.

[0060] In some embodiments, it may also include a connecting rod for connecting to a paper pad forming machine, one end of the connecting rod is provided on a bracket or a deformation mechanism and is detachably connected to the bracket or the deformation mechanism, and the other end of the connecting rod can be connected to an external paper pad forming machine.

[0061] Therefore, the existing paper pad forming machine can be connected to the deformation guiding structure of the present invention through the connecting rod to ensure the overall stability.

[0062] According to yet another aspect of the present invention, there is provided a deformation guiding structure, comprising:

[0063] An outer channel, both sides of the outer channel are folded or bent toward the middle to drive the two sides of the paper pad to be folded or bent toward the middle of the paper pad, and the two sides of the outer channel are converged in the direction from the paper inlet to the paper outlet of the outer channel;

[0064] an inner channel component, the inner channel component being arranged in the outer channel;

[0065] A guide roller, which is provided at the paper inlet of the outer channel; and

[0066] The bottom roller is arranged at the paper inlet of the outer channel, and is located between the guide roller and the inner channel component. The top of the guide roller is higher than the bottom of the bottom roller, and the bottom of the inner channel component is lower than the bottom of the bottom roller.

[0067] The deformation guide structure of the present invention can be installed on a paper pad forming machine, and the paper outlet of the outer channel is connected to the feed inlet of the paper pad forming machine, so that the bottom of the paper outlet of the outer channel can be slightly higher than the bottom of the feed inlet of the paper pad forming machine, and the width of the paper outlet of the outer channel is greater than the width of the feed inlet of the paper pad forming machine to ensure that the paper pad will not be stuck at the junction of the two; when the raw material (i.e., paper material) is a paper pad, the paper pad is fed into the space between the inner channel component and the outer channel through the paper inlet of the outer channel, and specifically the starting end of the paper pad is passed around the guide roller. The paper pad is pulled from the top of the paper pad and enters the bottom of the inner channel component from the bottom of the bottom roller. Under the traction of the paper pad forming machine, the paper pad moves from the paper inlet to the paper outlet of the outer channel. Since the two sides of the outer channel are folded or bent toward the middle and are gathered from the paper inlet to the paper outlet, under the action of the outer channel, the two sides of the paper pad will be folded or bent toward the middle of the paper pad to form a three-dimensional paper material with a smaller width, so as to provide the paper pad forming machine for the next step of processing and forming. In addition, the inner channel component can press down the middle of the paper pad to limit it, preventing the paper pad from During the deformation process, the middle part of the paper pad arches upward, affecting the forming effect. Since the top of the guide roller is higher than the bottom of the bottom roller and the bottom of the inner channel component is lower than the bottom of the bottom roller, the bottom roller and the end of the inner channel component close to the paper inlet of the outer channel will pre-bend the two sides of the paper pad to a certain extent, so that the subsequent deformation of the two sides of the paper pad in the outer channel becomes smoother; when the raw material (i.e., paper material) is pre-folded paper, the inner channel component can be removed, or the deformation guide structure can be directly removed, and the paper pad forming machine can directly process and form the pre-folded paper. The deformation guide structure of the present invention can be used as a supplementary structure of the current paper pad forming machine that directly processes pre-folded paper. According to needs, the paper pad forming machine can directly process and form the pre-folded paper, or it can be connected to the deformation guide structure to process and form the non-pre-folded paper pad, thereby increasing the applicability of the existing paper pad forming machine, so that the existing paper pad forming machine can meet the needs of two types of paper materials (paper pads and pre-folded paper), can adapt to the processing needs of different paper materials, and does not affect the volume of the paper pad forming machine body.

[0068] In some embodiments, the spacing between the bottom of the inner channel member and the inner bottom of the outer channel can be 5 to 50 mm. This spacing of 5 to 50 mm ensures that the paper pad will not get stuck between the bottom of the inner channel member and the inner bottom of the outer channel, and effectively prevents the center of the paper pad from arching upward during deformation, affecting the forming effect. The spacing of 5 to 50 mm ensures the quality of the three-dimensional paper material formed by the paper pad.

[0069] In some embodiments, arc-shaped guide blocks may be respectively provided at two corners of the end of the inner channel component near the paper inlet of the outer channel. Thus, the arc-shaped guide blocks can prevent the two corners of the end of the inner channel component from cutting the paper pad.

[0070] In some embodiments, the outer channel may be provided with an outward-turned portion near the paper feed port, with the outward-turned portion being arranged at an obtuse angle to the outer bottom of the outer channel. This allows the paper pad to bounce during feeding and easily be cut by the edge of the outer channel. The provision of the outward-turned portion prevents the paper pad from being cut when entering between the outer channel and the inner channel components, while also facilitating smoother paper pad feeding. The outward-turned portion being arranged at an obtuse angle to the outer bottom of the outer channel ensures that the paper pad is not cut by the edge of the outer channel during feeding.

[0071] In some embodiments, the end of the inner channel component near the paper inlet of the outer channel can be inclined, and the plane of the end of the inner channel component near the paper inlet of the outer channel can be arranged at an obtuse angle to the bottom of the inner channel component. Thus, the inclined end of the inner channel component can ensure that the paper pad is not cut by the end of the inner channel component when entering the bottom of the inner channel component. The obtuse angle between the plane of the end of the inner channel component and the bottom of the inner channel component can ensure that the paper pad enters the bottom of the inner channel component smoothly, ensuring smooth paper pad loading.

[0072] In some embodiments, both ends of the bottom roller may be tapered, so that the tapered ends of the bottom roller can pre-bend both sides of the paper pad, making the subsequent deformation of the two sides of the paper pad in the outer channel smoother.

[0073] In some embodiments, flanges may be provided on both sides of the inner channel component. Thus, the sides of the inner channel component can effectively support, limit, and guide the paper pad when it folds or bends toward the center. Furthermore, the flanges on both sides of the inner channel component can ensure that the paper pad will not be scratched by the sides of the inner channel component during rapid transport between the inner channel component and the outer channel.

[0074] In some embodiments, the inner channel member is detachably connected to the outer channel. Thus, when the raw material is pre-folded paper, the inner channel member can be removed from the outer channel, allowing the paper pad forming machine to directly process the pre-folded paper, making it very convenient to switch between paper pads and pre-folded paper.

[0075] In some embodiments, the width of the inner channel member may gradually decrease from the paper inlet to the paper outlet. In this way, the inner channel member and the outer channel have the same tendency to converge, ensuring that the two sides of the paper pad can be smoothly folded or bent toward the center.

[0076] In some embodiments, a gantry-shaped support structure may be further included, with the bottom of the outer channel disposed on the gantry-shaped support structure. Thus, after the deformation guide structure is connected to the paper pad forming machine, the raw materials can be stacked in the gantry-shaped support structure, thereby significantly reducing the floor space occupied by the raw materials.

[0077] In some embodiments, a second mounting plate may be provided on the top of the gantry-shaped support structure, the bottom of the outer channel is provided on the top of the second mounting plate, and the side of the second mounting plate is used to mount and fix the head portion of the paper pad forming machine.

[0078] When the head part of the paper pad forming machine is installed on the side of the second mounting plate, the bottom of the inner channel component is lower than the bottom of the inner flow channel in the paper pad forming machine and lower than the center plane between the two upper and lower forming gears in the paper pad forming machine.

[0079] Therefore, the outer channel can be installed and fixed on the gantry-shaped support structure through the second mounting plate, and the paper pad forming machine can also be installed and fixed on the gantry-shaped support structure. At the same time, the head part of the paper pad forming machine can be fixed on the side of the second mounting plate to improve the stability of the paper pad forming machine during operation. In addition, when the head part of the paper pad forming machine is installed on the side of the second mounting plate, the height setting between the bottom of the inner channel component, the bottom of the inner flow channel in the paper pad forming machine, and the center plane between the two upper and lower forming gears in the paper pad forming machine can make the inner channel component always maintain a tendency to press down the middle part of the paper pad to limit it, thereby ensuring the forming effect of the three-dimensional paper material entering the paper pad forming machine.

[0080] In some embodiments, the gantry-shaped support structure may include a first gantry-shaped support and a second gantry-shaped support arranged in parallel. The bottom of the outer channel is located on the first gantry-shaped support, and the second gantry-shaped support can be mounted and fixed to the paper pad forming machine. Thus, after the deformation guide structure is connected to the paper pad forming machine, raw materials can be stacked between the first and second gantry-shaped supports, significantly reducing the raw materials' footprint. Furthermore, the first gantry-shaped support provides support for the outer channel, while the second gantry-shaped support provides support for the paper pad forming machine.

[0081] In some embodiments, the top of the second gantry-shaped support can be lower than the top of the first gantry-shaped support, so that the bottom of the paper outlet of the outer channel is slightly higher than the bottom of the inlet of the paper pad forming machine to ensure that the paper pad will not get stuck at the intersection of the two.

[0082] In some embodiments, a second support frame may be further included, the gantry-shaped support structure being disposed on the second support frame, and casters being disposed at the bottom of the second support frame. Thus, the gantry-shaped support structure can be stably supported by the second support frame, and the casters at the bottom of the second support frame facilitate movement of the entire structure.

[0083] In some embodiments, the gantry-shaped support structure may be provided with guide rods, so that the raw materials in the gantry-shaped support structure can smoothly enter between the inner channel component and the outer channel through the guide rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] FIG1 is a flow chart of a method for loading paper onto a paper pad according to an embodiment of the present invention;

[0085] FIG2 is a flow chart of a method for loading paper onto a paper pad according to another embodiment of the present invention.

[0086] FIG3 is a schematic diagram of the placement of a paper pad on the cart in the paper loading method shown in FIG2 ;

[0087] FIG4 is a schematic structural diagram of a deformation guiding structure according to a first embodiment of the present invention;

[0088] FIG5 is a schematic diagram of the structure of the deformation guide structure shown in FIG4 after the bracket is hidden;

[0089] FIG6 is a side view of the deformation guide structure shown in FIG5;

[0090] FIG7 is a diagram showing the deformation guide structure shown in FIG4 in use after being connected to an existing paper pad forming machine;

[0091] FIG8 is a schematic structural diagram of a deformation guide structure according to a second embodiment of the present invention;

[0092] FIG9 is a schematic diagram of the structure of the deformation guide structure shown in FIG8 after the bracket is hidden;

[0093] FIG10 is a side view of the deformation guide structure shown in FIG9;

[0094] FIG11 is a diagram showing the deformation guide structure shown in FIG8 in use after being connected to an existing paper pad forming machine;

[0095] FIG12 is a schematic structural diagram of a deformation guide structure according to a third embodiment of the present invention;

[0096] FIG13 is a schematic structural diagram of the deformation guide structure shown in FIG12 from another perspective;

[0097] FIG14 is a structural schematic diagram of the deformation guide structure shown in FIG12 from another perspective;

[0098] FIG15 is a schematic structural diagram of the deformation guide structure shown in FIG12 along the C direction;

[0099] FIG16 is a schematic structural diagram of the deformation guide structure shown in FIG14 from another perspective;

[0100] FIG17 is a schematic structural diagram of the deformation guide structure shown in FIG12 along the D direction;

[0101] FIG18 is a schematic structural diagram of the deformation guide structure shown in FIG12 along the E direction;

[0102] FIG19 is a schematic structural diagram of a deformation guide structure according to a fourth embodiment of the present invention;

[0103] FIG20 is a diagram showing a state where the paper pad forming machine is installed on the deformation guide structure shown in FIG19;

[0104] Figure 21 is a diagram of the deformation guide structure and paper pad forming machine shown in Figure 20 in use. DETAILED DESCRIPTION

[0105] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0106] In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features referred to.

[0107] Example 1:

[0108] FIG1 schematically shows the process of a paper pad loading method according to an embodiment of the present invention.

[0109] Referring to FIG1 , the paper pad loading method includes the following steps:

[0110] 101: placing at least one stack of continuous paper pads that are not pre-folded on a cart, and when there are multiple stacks of paper pads, the multiple stacks of paper pads are arranged front to back along a paper loading direction of the paper pads.

[0111] Since the width of the non-prefolded paper pad is larger, paper pads of this width are placed in a row along the paper-loading direction of the paper pad on the cart (arranged front and back along the paper-loading direction of the paper pad). Since the paper pad is not prefolded, the paper pad is a single layer of paper, which is thinner than the double layer of prefolded paper. Therefore, paper of the same length can be stacked in the height direction to form multiple stacks of paper pads, and the stacking is more stable than the double layer of prefolded paper. Moreover, since the non-prefolded paper pads are placed in a row along the paper-loading direction of the paper pad on the cart, there is no need to consider the cumbersome connection problem of paper pads between different rows, and they are not affected by the misaligned connection of the paper pad stacks. There is no twisting and deformation of the paper pad when loading paper, so that the paper loading path of the paper pad will not be offset, and the transportation is more stable when loading paper.

[0112] When there are multiple stacks of paper pads on the cart in the height direction, the tail of the upper stack of paper pads is glued to the head of the adjacent lower stack of paper pads, thereby forming a continuous paper pad. There is no need to stick double-sided tape or apply glue along the pre-folding line for connection, and there is no need to fold the head or tail of the paper pads. Each stack of paper pads is a continuous paper pad that is not pre-folded; when there are multiple stacks of paper pads arranged front and back along the paper-up direction of the paper pads on the cart, the tail of the stack of paper pads close to the paper pad forming machine is glued to the head of the adjacent next stack of paper pads away from the paper pad forming machine; the bonding method between the two stacks of paper pads may include gluing, tape bonding, or bonding with the adhesive tape on the paper pads, so that the connection operation between multiple stacks of paper pads stacked up and down or multiple stacks of paper pads arranged front and back along the paper-up direction of the paper pads is very simple and the transportation is stable.

[0113] The same stack of non-pre-folded continuous paper pads can be divided into multiple piles and then placed on a cart. The multiple piles of paper pads are arranged front to back along the paper-up direction of the paper pads. In this way, the paper pads of adjacent paper piles arranged front to back along the paper-up direction of the paper pads themselves belong to the same stack of paper pads and do not need to be glued together.

[0114] 102: The head of the paper pad on the cart starts to be transported.

[0115] 103: Deform both sides of the paper pad so that the both sides of the paper pad are folded or bent toward the middle of the paper pad.

[0116] The deformation guide structure can be used to fold or bend both sides of the paper pad toward the middle of the paper pad, thereby forming a paper pad with a narrower width.

[0117] 104: The deformed paper pad enters a paper pad forming machine, which forms the paper pad into a three-dimensional buffer paper pad.

[0118] Example 2:

[0119] FIG2 schematically shows the process of a paper pad loading method according to another embodiment of the present invention.

[0120] Referring to FIG2 , the paper pad loading method includes the following steps:

[0121] 201: Multiple stacks of continuous paper pads that are not pre-folded are placed on a cart (the state shown in Figure 3), and the number of stacks of paper pads arranged front and back along the paper-up direction of the paper pads is multiple. In every two stacks of paper pads, the tail of the lowest stack of paper pads close to the paper pad forming machine is glued to the head of the adjacent highest stack of paper pads away from the paper pad forming machine. The number of stacks of paper pads on the cart in the height direction is also multiple, and the tail of the upper stack of paper pads is glued to the head of the adjacent lower stack of paper pads.

[0122] Since the width of the non-prefolded paper pad is larger, paper pads of this width are placed in a row along the paper-loading direction of the paper pad on the cart (arranged front and back along the paper-loading direction of the paper pad). Since the paper pad is not prefolded, the paper pad is a single layer of paper, which is thinner than the double layer of prefolded paper. Therefore, paper of the same length can be stacked in the height direction to form multiple stacks of paper pads, and the stacking is more stable than the double layer of prefolded paper. Moreover, since the non-prefolded paper pads are placed in a row along the paper-loading direction of the paper pad on the cart, there is no need to consider the cumbersome connection problem of paper pads between different rows, and they are not affected by the misaligned connection of the paper pad stacks. There is no twisting and deformation of the paper pad when loading paper, so that the paper loading path of the paper pad will not be offset, and the transportation is more stable when loading paper.

[0123] The number of stacks of paper pads on the cart in the height direction is multiple, and the tail of the stack of paper pads on the upper side is glued to the head of the adjacent stack of paper pads on the lower side, thereby forming a continuous paper pad in the height direction. There is no need to stick double-sided tape or apply glue along the pre-folding line for connection, and there is no need to fold the head or tail of the paper pad. Each stack of paper pads is a continuous paper pad that is not pre-folded; the number of stacks of paper pads arranged front and back along the paper-loading direction of the paper pad on the cart is multiple, and the tail of the lowest stack of paper pads close to the paper pad forming machine is glued to the head of the highest stack of paper pads adjacent to the paper pad forming machine, thereby also forming a continuous paper pad in the paper-loading direction of the paper pad; the bonding method between the two stacks of paper pads may include gluing, tape bonding, or bonding with the adhesive tape on the paper pad, so that the connection operation between the multiple stacks of paper pads stacked up and down and between the multiple stacks of paper pads along the paper-loading direction of the paper pad is very simple and the transportation is stable.

[0124] 202: The head of the paper pad on the cart starts to be transported.

[0125] 203: Deforming the two sides of the paper pad so that the two sides of the paper pad are folded or bent toward the middle of the paper pad.

[0126] The deformation guide structure can be used to fold or bend both sides of the paper pad toward the middle of the paper pad, thereby forming a paper pad with a narrower width.

[0127] 204: The deformed paper pad enters a paper pad forming machine, which forms the paper pad into a three-dimensional buffer paper pad.

[0128] The paper feeding method of the present invention is suitable for non-prefolded paper pads. Since the non-prefolded paper pads are relatively wide, paper pads of this width are placed in a row on the cart along the paper feeding direction of the paper pads. Moreover, since they are not prefolded, the paper pads are single-layer paper, which is thinner than the double-layer paper pads of prefolded paper. Therefore, paper of the same length can be stacked in the height direction to form multiple stacks of paper pads, and the stacking is more stable than the double-layer paper pads of prefolded paper. Moreover, since the non-prefolded paper pads are placed in a row on the cart along the paper feeding direction of the paper pads, there is no need to consider the cumbersome connection problem between paper pads in different rows, and they are not affected by the misaligned connection of the paper pad stacks. There is no twisting and deformation of the paper pads during paper feeding, so that the paper feeding path of the paper pad will not be offset, and the transportation during paper feeding is more stable. After the head of the paper pad on the cart starts to be transported, the paper pad is deformed to form a paper pad with a narrower width, so that it can directly enter the paper pad forming machine for the production of a three-dimensional buffer paper pad, which is very convenient.

[0129] FIG3 schematically shows the placement state of the paper pad on the cart in the paper loading method shown in FIG2 .

[0130] 3 , multiple stacks of paper pads 100 are placed on a cart or a carrier plate. Each stack of paper pads 100 is a continuous, uncoiled paper pad. The paper pads 100 arranged front to back along the paper-up direction, i.e., the X direction, are stacked in four stacks. The paper pads 100 are placed in a row along the Y direction on the cart. The number of stacks of paper pads 100 in the height direction on the cart is also four, for a total of sixteen stacks. The tail of the upper stack of paper pads 100 is bonded to the head of the adjacent lower stack. In the X direction, between every two stacks of paper pads 100, the tail of the lower stack of paper pads close to the paper pad forming machine is bonded to the head of the adjacent upper stack of paper pads away from the paper pad forming machine, thereby forming a continuous stack on the cart. Paper pad; Since the width of the non-prefolded paper pad 100 is large, the paper pads 100 of this width are placed in a row along the X direction on the cart, and since they are not prefolded, the paper pad 100 is a single layer of paper, which is thinner than the double layer of prefolded paper. Therefore, paper of the same length can be stacked in the height direction to form multiple stacks of paper pads 100, and the stacked paper pads are more stable than the double layer of prefolded paper. Moreover, since the non-prefolded paper pads 100 are placed in a row along the paper loading direction of the paper pads 100 on the cart, there is no need to consider the cumbersome connection problem between different rows of paper pads 100, and they are not affected by the misaligned connection between different rows of paper pads 100, and there is no problem of the paper pads being twisted and deformed when loading paper.

[0131] Example 3:

[0132] 4 to 6 schematically show the structure of a deformation guide structure according to a first embodiment of the present invention.

[0133] 4 to 6 , the deformation guiding structure includes a bracket 1 and a deformation mechanism. In addition, the deformation guiding structure may further include a frame body, a rotation adjustment portion, and a connecting rod.

[0134] Casters are installed at the bottom of the bracket 1, and the bracket 1 adopts a liftable structure. As long as the height of the bracket 1 can be adjusted, it can be any structure, and there is no limitation here.

[0135] The deformation mechanism is installed on the bracket 1, and the deformation mechanism can fold or bend the two sides of the paper pad toward the middle of the paper pad. Specifically, the deformation mechanism is installed on the frame, and the frame is used to carry the deformation mechanism, and the frame is installed on the bracket 1.

[0136] Referring to Figures 4 to 6, the frame includes a right side plate 301, a left side plate 302, a cross beam 303 and a bottom beam 304. Referring to Figure 4, the right side plate 301 and the left side plate 302 are arranged opposite to each other, and the space between the right side plate 301 and the left side plate 302 is contracted along direction A. The top of the right side plate 301 and the top of the left side plate 302 are connected by the cross beam 303. Referring to Figure 6, the bottom of the right side plate 301 and the bottom of the left side plate 302 are connected by the bottom beam 304.

[0137] 4 to 6 , the deformation mechanism includes a guide roller 21 , a pressing portion 22 , a deformation portion, a discharge port 25 , a side guide portion 26 and a pressing portion 27 .

[0138] 4 to 6 , the guide roller 21 is mounted on one side of the frame. Specifically, one end of the guide roller 21 is mounted on the end of the right side plate 301, and the other end of the guide roller 21 is mounted on the end of the left side plate 302. When subjected to external force, the guide roller 21 can be set to rotate between the right side plate 301 and the left side plate 302, or it can be set not to rotate.

[0139] 302 , the two ends of the pressure roller 251 are respectively installed in the mounting holes. As needed, the pressure roller 251 can be adjusted to install in the appropriate mounting hole to adjust the distance between the two pressure rollers 251. As long as the distance between the two pressure rollers 251 can be adjusted, it is not limited here.

[0140] 4 to 6 , the depression portion 22 is mounted on the bottom beam 304 , and is located between the right side plate 301 and the left side plate 302 . The depression portion 22 is plate-shaped, and is located between the guide roller 21 and the discharge port 25 . The guide roller 21 is higher than the plane where the depression portion 32 is located.

[0141] Referring to Figures 4 to 6, a first guide roller 32 is installed in the frame, and both ends of the first guide roller 32 are installed on the crossbeam 303 through a rod. The first guide roller 32 is located between the guide roller 21 and the end of the depression part 22, and the bottom of the first guide roller 32 is flush with the bottom of the depression part 22; the paper pad with a larger width that is not pre-folded passes around the guide roller 21 from above, and then passes around the first guide roller 32 from below to enter the bottom of the depression part 22 and is transported toward the discharge port 25. The first guide roller 32 can prevent the edge of the depression part 22 from causing cross-cutting force damage to the paper pad.

[0142] The deformation portion is located between the guide roller 21 and the discharge port 25. The deformation portion can guide the two sides of the paper pad to fold or bend toward the middle of the paper pad. The deformation portion includes a guide portion 23 and a flange portion 24. Specifically, referring to Figures 4 to 6, there are two guide portions 23. The guide portion 23 is a trapezoidal plate. The edge of one guide portion 23 is fixed to the right plate 301 (it can also be integrally formed), and the edge of the other guide portion 23 is fixed to the left plate 302 (it can also be integrally formed). The guide portion 23 is located between the guide roller 21 and the discharge port 25. Since the plane where the depression portion 32 is located is lower than the guide roller 21, so the height of the end of the guide part 23 away from the guide roller 21 is lower than the height of the end of the guide part 23 close to the guide roller 21, that is, the guide part 23 is in a downslope shape along the A direction. Referring to Figure 4, along the A direction, the area between the two guide parts 23 is in a contracted shape. Since the paper pad with a larger width that is not pre-folded passes around the guide roller 21 from above, passes around the first guide roller 32 from below, enters the bottom of the depression part 22, and is transported toward the discharge port 25, under the action of the two guide parts 23, the two side edges of the paper pad will be folded or bent toward the middle of the paper pad.

[0143] Referring to Figures 4 to 6, the side guide portion 26 is installed on the guide portion 23. The side guide portion 26 and the guide portion 23 are integrally formed. The side guide portion 26 can be formed by folding the edge of the guide portion 23. The side guide portion 26 and the guide portion 23 are arranged at an obtuse angle. Both guide portions 23 are provided with side guide portions 26. Under the action of the two side guide portions 26, the two side edges of the paper pad will be guided to bend, so that the two side edges of the paper pad will be further folded or bent toward the middle of the paper pad.

[0144] 4 to 6, there are two flange portions 24, and the flange portions 24 are plate-shaped. The edge of one flange portion 24 is fixed to the right side plate 301 (it can also be integrally formed), and the edge of the other flange portion 24 is fixed to the left side plate 302 (it can also be integrally formed). The flange portion 24 is located between the guide portion 23 and the discharge port 25. The height of the end of the flange portion 24 away from the guide roller 21 is lower than the height of the end of the flange portion 24 close to the guide roller 21, that is, the flange portion 24 is downslope along the direction A, and the lowest point of the flange portion 24 is lower than At the lowest point of the guide portion 23, preferably, the highest point of the flange portion 24 is slightly lower than the lowest point of the guide portion 23, that is, along direction A, the guide portion 23 and the flange portion 24 are generally downslope. Referring to Figure 4, along direction A, the area between the two flange portions 24 is contracted and follows the contraction trend of the contraction area between the two guide portions 23. After the paper pad passes through the guide portion 23 and the side guide portion 26, under the action of the two flange portions 24, the two side edges of the paper pad continue to be compressed and deformed, and further folded or bent toward the middle of the paper pad.

[0145] Referring to Figures 4 to 6, there are two edge pressing parts 27, and the edge pressing parts 27 are plate-shaped. The edge of one edge pressing part 27 is fixed on the right side plate 301 (it can also be formed as one piece), and the edge of the other edge pressing part 27 is fixed on the left side plate 302 (it can also be formed as one piece). The edge pressing part 27 is located between the flange part 24 and the discharge port 25. The free ends of the edge pressing parts 27 can be arranged horizontally, and a certain gap is left between the free ends of the two edge pressing parts 27. The lowest point of the edge pressing part 27 is lower than the lowest point of the flange part 24. In this way, after the paper pad passes through the action of the flange part 24, the two edge pressing parts 27 can press down the two side edges of the paper pad that are folded or bent toward the middle to further deform the two side edges of the paper pad.

[0146] 4 to 6 , a separation rod 31 is installed in the frame. Specifically, the bottom of the separation rod 31 is fixed on the bottom pressure portion 22 , and the top of the separation rod 31 is fixed on the crossbeam 303 . The separation rod 31 is used to separate the two side edges of the paper pad. The separation rod 31 is located in the middle position of the area between the two guide portions 23 . The separation rod 31 can make the two side edges of the paper pad fold or bend toward the middle with nearly equal size, ensuring the consistency of the pre-folding of the paper pad.

[0147] Referring to Figure 4, the unfolded paper pad with a larger width passes over the guide roller 21 from above in direction A, then passes over the first guide roller 32 from below, enters the lower part 22, and is transported toward the discharge port 25. Since the width of the discharge port 25 is smaller than the length of the guide roller 21, the two sides of the paper pad will be folded or bent toward the center of the paper pad under the action of the guide part 23 and the side guide part 26. The separation rod 31 can make the two sides of the paper pad be folded or bent toward the center with nearly equal dimensions.

[0148] Then, under the action of the two flange parts 24, the two side edges of the paper pad continue to be pressed and deformed, and further folded or bent toward the middle of the paper pad. After the paper pad has passed through the action of the flange parts 24, the two pressing parts 27 can press down on the two side edges of the paper pad that are folded or bent toward the middle to further deform the two side edges of the paper pad. When the deformed paper pad passes between the two pressing rollers 251, the deformed paper pad is shaped under the pressing action of the two pressing rollers 251, and the paper pad output from the discharge port 25 is a pre-folded paper pad with two folding surfaces folded toward the middle surface, thereby forming a stable pre-folded paper pad with a narrower width.

[0149] The rotation adjustment part is installed between the deformation mechanism and the bracket 1. The rotation adjustment part can adjust the pitch angle of the deformation mechanism. In this embodiment, the rotation adjustment part is installed between the frame body and the bracket 1; specifically: referring to Figures 4 and 6, the rotation adjustment part includes a first support frame 41, a first mounting plate 42, an adjustment rod 43 and a latch 44. The first support frame 41 is fixed to the top of the bracket 1. Two first side plates 411 arranged opposite to each other are formed on the first support frame 41. The first mounting plate 42 is fixed to the bottom of the frame body. The first mounting plate 42 is specifically fixed to the bottom beam 304 of the frame body. Two second side plates 422 arranged opposite to each other are formed on the first mounting plate 42. A plurality of arc-shaped plug holes 421 are formed on the two second side plates 422. Each plug hole 421 on the second side panel 422 is arranged opposite to a plug hole 421 on another second side panel 422. The adjusting rod 43 passes through a first side panel 411 on the first support frame 41 and is inserted into a plug hole 421 on a second side panel 422 on the first mounting plate 42. The latch 44 passes through another first side panel 411 on the first support frame 41 and is inserted into a plug hole 421 on another second side panel 422 on the first mounting plate 42. When the adjusting rod 43 and the latch 44 are inserted into different plug holes 421 on the first mounting plate 42, the pitch angle of the frame is different. According to the height of the paper pad forming machine, the adjusting rod 43 and the latch 44 can be inserted into the appropriate plug hole 421 on the first mounting plate 42.

[0150] One end of the connecting rod is mounted on the bracket 1 or the deformation mechanism, and the connecting rod is detachably connected to the bracket 1 or the deformation mechanism, and the other end of the connecting rod can be connected to an external paper pad forming machine. Specifically, one end of the connecting rod is detachably mounted (such as threaded connection, plug-in connection, etc.) on the bottom of the bottom beam 304 of the frame that supports the deformation mechanism, and the other end of the connecting rod can be detachably connected (such as threaded connection, plug-in connection, etc.) to the external paper pad forming machine. The existing paper pad forming machine can be connected to the deformation guide structure of the present invention through the connecting rod to ensure overall stability. In other embodiments, one end of the connecting rod can also be detachably mounted (such as threaded connection, plug-in connection, etc.) on the deformation mechanism, such as the bottom of the depression part, and can also be detachably mounted (such as threaded connection, plug-in connection, etc.) on the bracket 1.

[0151] FIG. 7 schematically shows the use state of the deformation guide structure shown in FIG. 4 after being connected to an existing paper pad forming machine.

[0152] Referring to Figure 7, the existing paper pad forming machine 200 is connected to the deformation guide structure of Example 3 through a connecting rod 5, and multiple stacks of paper pads 100 are placed on a cart or a carrier plate 300. Each stack of paper pads 100 is a continuous paper pad that is not pre-folded. The number of stacks of paper pads 100 arranged front and back along the paper-loading direction of the paper pad, i.e., the F direction, is four. The paper pads 100 are placed in a row on the cart or the carrier plate 300, and the number of stacks of paper pads 100 in the height direction on the cart or the carrier plate 300 is also four, for a total of sixteen stacks.

[0153] With reference to FIG7 , the head (starting end) of the unpre-folded paper pad 100 with a larger width is passed around the guide roller 21 from above the guide roller 21 along the F direction, and then passed around the first guide roller 32 from below the first guide roller 32 to enter the bottom of the pressing part 22, and is sent out from the discharge port 25 through the gap between the two pressing rollers 21. The two sides of the paper pad will be folded or bent toward the middle of the paper pad under the action of the guide part 23 and the side guide part 26, the flanging part 24, and the pressing part 27 in turn. Under the pressing action of the two pressing rollers 251, the deformed paper pad is shaped, and the paper pad output from the discharge port 25 is a pre-folded paper pad with two folding surfaces folded to the middle surface, thereby forming a stable pre-folded paper pad with a narrower width. The formed pre-folded paper pad enters the paper pad forming machine 200, and the paper pad forming machine 200 makes the paper pad into a three-dimensional buffer paper pad; the deformation guide structure of the present invention can be used as a paper pad forming machine 2 for directly processing pre-folded paper pads. 00's supplementary structure, as needed, the existing paper pad forming machine 200 can directly process and form pre-folded paper pads (without the need for a deformation guide mechanism), and can also be connected to the deformation guide structure of the present invention to process and form wide single-layer paper pads that are not pre-folded, thereby increasing the applicability of the existing paper pad forming machine 200 that directly processes pre-folded paper pads, so that the existing paper pad forming machine 200 can meet the needs of two types of paper materials (wider non-pre-folded paper materials and narrower pre-folded paper materials), and does not affect the volume of the paper pad forming machine 200 body. When the existing paper pad forming machine 200 is connected to the deformation guide structure of the present invention to process and form wide single-layer paper pads that are not pre-folded, there is no need to consider the cumbersome connection problem between different rows of paper pads, and is not affected by the misaligned connection of the paper pad stack. There is no twisting and deformation of the paper pad when loading paper, so that the paper loading path of the paper pad will not be offset, and the transportation is more stable when loading paper.

[0154] Example 4:

[0155] 8 to 10 schematically show the structure of a deformation guiding structure according to a second embodiment of the present invention.

[0156] 8 to 10 , the deformation guiding structure includes a bracket 1 and a deformation mechanism. In addition, the deformation guiding structure may further include a frame body, a rotation adjustment portion, and a connecting rod 5 .

[0157] In this embodiment, the structure of the bracket 1, the structure of the rotation adjustment portion, and the connecting rod 5 are the same as those in the third embodiment and will not be described in detail. Only the structure of the deformation mechanism is different from that in the third embodiment.

[0158] 8 to 10 , the deformation mechanism includes a guide roller 61 , a bottom roller 62 and a flow channel 63 .

[0159] 8 , the flow channel 63 is convergent in the direction from the inlet to the outlet, ie, in the direction B.

[0160] 8 to 10 , the flow channel 63 includes a bottom plate 631 and two side plates 632 . The width of the bottom plate 631 gradually decreases from the inlet to the outlet, i.e., in the direction B. The two side plates 632 are respectively arranged on both sides of the bottom plate 631 . The side plates 632 and the bottom plate 631 can be integrally formed.

[0161] Referring to Figure 8, one end of the guide roller 61 is installed on an extension of a side plate 632 in the opposite direction of direction B, and the other end of the guide roller 61 is installed on an extension of the other side plate 632 in the opposite direction of direction B. When subjected to external force, the guide roller 61 can be set to rotate between the extensions of the two side plates 632, or it can be set not to rotate.

[0162] Referring to Figure 8, one end of the bottom roller 62 is installed on the extension of one side plate 632 in the opposite direction of direction B, and the other end of the bottom roller 62 is installed on the extension of the other side plate 632 in the opposite direction of direction B. When subjected to external force, the bottom roller 62 can be set to rotate between the extensions of the two side plates 632, or it can be set not to rotate. The guide roller 61 and the bottom roller 62 are both located at the entrance of the flow channel 63, and the guide roller 61 is located obliquely above the bottom roller 62.

[0163] 8 to 10 , both ends 621 of the bottom roller 62 are conical. A paper pad with a larger width that is not pre-folded passes over the guide roller 61 from above and enters the flow channel 63 from below the bottom roller 62. Since the flow channel 63 is convergent in the direction from the inlet to the outlet, under the action of the flow channel 63, both side edges of the paper pad will be folded or bent toward the middle of the paper pad. Moreover, since both ends 621 of the bottom roller 62 are conical, both ends 621 of the bottom roller 62 will pre-bend both side edges of the paper pad, so that the subsequent deformation of both side edges of the paper pad in the flow channel 63 will be smoother.

[0164] 8 to 10 , the side panels 632 are bent, and the two bent side panels 632 can guide the two sides of the paper pad to fold or bend toward the middle of the paper pad.

[0165] The rotation adjustment part is installed between the deformation mechanism and the bracket 1, and the rotation adjustment part can adjust the pitch angle of the deformation mechanism. In this embodiment, the rotation adjustment part is installed between the flow channel 63 and the bracket 1, and the rotation adjustment part can adjust the pitch angle of the flow channel 63. The rotation adjustment part includes a first support frame 41, a first mounting plate 42, an adjustment rod 43 and a pin 44. The structure of the rotation adjustment part is the same as that of Example 3 and is not repeated here. The only difference is that the first support frame 41 is fixed to the top of the bracket 1, and the first mounting plate 42 is fixed to the bottom of the flow channel 63. The adjustment rod 43 and the pin 44 are inserted into different plug holes 421 on the first mounting plate 42. The pitch angle of the flow channel 63 is different. According to the height of the paper pad forming machine, the adjustment rod 43 and the pin 44 can be inserted into the appropriate plug hole 421 on the first mounting plate 42.

[0166] One end of the connecting rod 5 is mounted on the bracket 1 or the deformation mechanism, and the connecting rod 5 is detachably connected to the bracket 1 or the deformation mechanism. The other end of the connecting rod 5 can be connected to an external paper pad forming machine. Specifically, referring to Figure 8, one end of the connecting rod 5 is detachably mounted (such as by threading, snap connection, etc.) on the bottom of the bottom plate 631 of the flow channel 63 of the deformation mechanism, and the other end of the connecting rod 5 can be detachably connected (such as by threading, snap connection, etc.) to an external paper pad forming machine. The existing paper pad forming machine can be connected to the deformation guide structure of the present invention through the connecting rod 5 to ensure overall stability. In other embodiments, one end of the connecting rod 5 can also be detachably mounted on the bracket 1 (such as by threading, snap connection, etc.).

[0167] FIG11 schematically shows the use state of the deformation guide structure shown in FIG8 after being connected to an existing paper pad forming machine.

[0168] Referring to Figure 11, the existing paper pad forming machine 200 is connected to the deformation guide structure of Example 4 through a connecting rod 5, and multiple stacks of paper pads 100 are placed on a cart or a carrier plate 300. Each stack of paper pads 100 is a continuous paper pad that is not pre-folded. The number of stacks of paper pads 100 arranged front and back along the paper-loading direction of the paper pad, i.e., the F direction, is four. The paper pads 100 are placed in a row on the cart or the carrier plate 300, and the number of stacks of paper pads 100 in the height direction on the cart or the carrier plate 300 is also four, for a total of sixteen stacks.

[0169] With reference to FIG11 , the head (starting end) of the non-pre-folded paper pad 100 with a larger width is passed over the guide roller 61 from above in the direction F and then enters the flow channel 63 from below the bottom roller 62. Since the flow channel 63 is in a convergent shape from the inlet to the outlet, under the action of the flow channel 63, the two side edges of the paper pad will be folded or bent toward the middle of the paper pad, and since the two end portions 621 of the bottom roller 62 are both conical, the two end portions 621 of the bottom roller 62 will pre-bend the two side edges of the paper pad, so that the subsequent deformation of the two side edges of the paper pad in the flow channel 63 will be smoother. The paper pad output from the outlet of the flow channel 63 is a pre-folded paper pad with a narrower width. The formed pre-folded paper pad enters the paper pad forming machine 200, and the paper pad forming machine 200 makes the paper pad into a three-dimensional buffer paper pad. The deformation guide structure of the present invention can be used as a supplementary structure of the current paper pad forming machine 200 that directly processes pre-folded paper pads. As needed, the existing paper pad forming machine 200 can directly process and form pre-folded paper pads (without the need for a deformation guide mechanism), or it can be connected to the deformation guide structure of the present invention to process and form non-prefolded wide single-layer paper pads, thereby increasing the applicability of the existing paper pad forming machine 200 that directly processes pre-folded paper pads, so that the existing paper pad forming machine 200 can meet the needs of two types of paper materials (non-prefolded paper materials with larger widths and prefolded paper materials with narrower widths), and does not affect the volume of the paper pad forming machine 200 body. When the existing paper pad forming machine 200 is connected to the deformation guide structure of the present invention to process and form non-prefolded wide single-layer paper pads, there is no need to consider the cumbersome connection problem between different rows of paper pads, and is not affected by the misaligned connection of the paper pad stack. There is no twisting and deformation of the paper pad when loading paper, so that the paper loading path of the paper pad will not be offset, and the transportation is more stable when loading paper.

[0170] Embodiment 5:

[0171] 12 to 18 schematically show the structure of a deformation guiding structure according to a third embodiment of the present invention.

[0172] 12 to 18 , the deformation guide structure includes an outer channel 7 , an inner channel component 8 , a guide roller 61 and a bottom roller 62 .

[0173] 12 to 14, the two sides of the outer channel 7 are folded or bent toward the middle, so that the outer channel 7 can drive the two sides of the paper pad to fold or bend toward the middle of the paper pad; specifically, referring to FIG12 and FIG13, the outer channel 7 includes a left side plate 701, a right side plate 702 and a bottom plate 703, the left side plate 701 and the right side plate 702 are respectively arranged on both sides of the bottom plate 703 and can be integrally formed, the left side plate 701 and the right side plate 702 are both curved, in addition, the outer channel 7 is in a retracted shape from the paper inlet 400 to the paper outlet 500, specifically: referring to FIG13, the bottom plate The width of 703 gradually decreases from the paper inlet 400 to the paper outlet 500 (as shown in FIG12 ). In this way, the outer channel 7 is gradually contracted in the transverse direction from the paper inlet 400 to the paper outlet 500. At the same time, referring to FIG15 , the left side plate 701 and the right side plate 702 are also gradually contracted in the longitudinal direction from the paper inlet 400 to the paper outlet 500 (as shown in FIG12 ). When the paper pad moves from the paper inlet 400 to the paper outlet 500 of the outer channel 7, the two sides of the paper pad will be folded or bent toward the middle of the paper pad to form a three-dimensional paper material with a smaller width.

[0174] Referring to Figures 12 to 14, the inner channel component 8 is installed in the outer channel 7, and the width of the inner channel component 8 gradually decreases from the paper inlet 400 to the paper outlet 500 of the outer channel 7. There are gaps on both sides of the inner channel component 8 and the left plate 701 and the right plate 702 for the paper pad to pass through. When the raw material (i.e., paper material) is a paper pad, the paper pad is fed into the space between the inner channel component 8 and the outer channel 7 through the paper inlet 400 of the outer channel 7. The middle part of the paper pad is located at the bottom of the inner channel component 8. The inner channel component 8 can press down the middle part of the paper pad to limit it, preventing the middle part of the paper pad from arching upward during the deformation process to affect the molding effect, and ensuring that the paper pad deforms smoothly in the outer channel 7.

[0175] Referring to Figure 15, in this embodiment, the distance H between the bottom of the inner channel component 8 and the inner bottom of the outer channel 7 is 5 to 50 mm. The distance of 5 to 50 mm can not only ensure that the paper pad will not be stuck between the bottom of the inner channel component 8 and the inner bottom of the outer channel 7, but also effectively prevent the middle of the paper pad from arching upward during the deformation process, affecting the forming effect. The distance of 5 to 50 mm can ensure the quality of the three-dimensional paper material formed by the paper pad.

[0176] Referring to Figure 16, the end of the inner channel component 8 close to the paper feed port of the outer channel 7 is in the shape of a slope, and the plane 802 where the end of the inner channel component 8 close to the paper feed port of the outer channel 7 is located is arranged at an obtuse angle to the bottom 801 of the inner channel component 8. The inclined design of the end of the inner channel component 8 can ensure that the paper pad will not be cut by the end of the inner channel component 8 when entering the bottom of the inner channel component 8. The plane 802 where the end of the inner channel component 8 is located is arranged at an obtuse angle to the bottom 801 of the inner channel component 8 to ensure that the paper pad smoothly enters the bottom of the inner channel component 8, thereby ensuring the smoothness of paper pad loading.

[0177] 12 and 14 , both sides of the inner channel component 8 are respectively formed with upwardly extending flanges 803. The two sides of the inner channel component 8 can provide good support, limitation and guidance for the paper pad to be folded or bent toward the middle. At the same time, the flanges 803 on both sides of the inner channel component 8 can ensure that the paper pad will not be scratched by the two sides of the inner channel component 8 when it is quickly transported between the inner channel component 8 and the outer channel 7. The flanges 803 can be flat or curved.

[0178] The inner channel component 8 is detachably connected to the outer channel 7. Specifically, referring to Figures 12 to 14, two vertical connecting rods 83 are installed on the inner channel component 8, and a horizontal fixing plate 82 is installed on the top of the two connecting rods 83. The two ends of the fixing plate 82 can be respectively fixed to the left plate 701 and the right plate 702 by screws. The inner channel component 8 is in a hanging state in the outer channel 7. When the raw material is pre-folded paper, the inner channel component 8, the connecting rod 83, and the fixing plate 82 can be removed from the outer channel 7 as a whole, so that the paper pad forming machine can directly process and form the pre-folded paper, which is very convenient when switching between paper pads and pre-folded paper.

[0179] Referring to Figures 13 and 14, arc-shaped guide blocks 81 are respectively installed at the two corners of the end of the inner channel component 8 close to the paper feed port of the outer channel 7. The two arc-shaped guide blocks 81 are respectively located at the two corners of the end of the inner channel component 8. The two arc-shaped guide blocks 81 on the inner channel component 8 can prevent the two corners of the end of the inner channel component 8 from cutting the paper pad. The arc-shaped guide blocks 81 can also be formed integrally with the end of the inner channel component 8.

[0180] In this embodiment, the inner channel component 8 is plate-shaped as a whole. In other embodiments, the inner channel component 8 can also be frame-shaped as a whole as needed, as long as the end portion close to the paper inlet of the outer channel 7, the arc-shaped guide block 81, and the flanges 803 on both sides are arranged so that the overall width gradually decreases from the paper inlet to the paper outlet of the outer channel 7.

[0181] 14 and 16 to 18 , an outward turning portion 71 is formed near the paper feed port 400 of the outer channel 7. The outward turning portion 71 is formed by folding the end of the bottom plate 703 of the outer channel 7 near the paper feed port 400 downward at a certain angle. The outward turning portion 71 is arranged at an obtuse angle to the outer bottom of the outer channel 7, i.e., the bottom plate 703. The outward turning portion 71 can prevent the paper pad from being cut when it enters between the outer channel 7 and the inner channel component 8, and at the same time facilitates the smoothness of paper pad loading. The outward turning portion 71 is arranged at an obtuse angle to the outer bottom of the outer channel 7 to ensure that the paper pad will not be cut by the edge of the outer channel 7 when feeding.

[0182] The guide roller 61 is installed at the paper feed port of the outer channel 7. Specifically, referring to Figures 12 to 14, one end of the guide roller 61 is installed on the left extension plate 7011 of the left plate 701, and the other end of the guide roller 61 is installed on the right extension plate 7021 on the right plate 702. When subjected to external force, the guide roller 61 can be set to rotate between the left extension plate 7011 and the right extension plate 7021, or it can be set not to rotate.

[0183] The bottom roller 62 is installed at the paper feed port of the outer channel 7. Specifically, referring to Figures 12 to 14, one end of the bottom roller 62 is installed on the left extension plate 7011 of the left plate 701, and the other end of the bottom roller 62 is installed on the right extension plate 7021 on the right plate 702. When subjected to external force, the bottom roller 62 can be set to rotate between the left extension plate 7011 and the right extension plate 7021, or it can be set not to rotate.

[0184] Referring to Figures 12 and 13, the bottom roller 62 is located between the guide roller 61 and the inner channel component 8, the guide roller 61 is located obliquely above the bottom roller 62, and both ends of the bottom roller 62 are conical. Referring to Figure 15, the top of the guide roller 61 is higher than the bottom of the bottom roller 62, and the bottom of the inner channel component 8 is lower than the bottom of the bottom roller 62. When the raw material (i.e., paper material) is a paper pad, the starting end of the paper pad is passed over the top of the guide roller 61 and enters the bottom of the inner channel component 8 from the bottom of the bottom roller 62. Under the traction of the paper pad forming machine, the paper pad is pulled from the inlet of the outer channel 7. The paper pad moves in the direction from the paper port 400 to the paper outlet 500. Under the action of the outer channel 7, the two side edges of the paper pad will be folded or bent toward the middle of the paper pad to form a three-dimensional paper material with a smaller width. Since the top of the guide roller 61 is higher than the bottom of the bottom roller 62, the bottom of the inner channel component 8 is lower than the bottom of the bottom roller 62, and the two ends of the bottom roller 62 are conical, the two ends of the bottom roller 62 and the end of the inner channel component 8 close to the paper inlet 400 of the outer channel 7 will pre-bend the two side edges of the paper pad, so that the subsequent deformation of the two side edges of the paper pad in the outer channel 7 will be smooth.

[0185] 12 to 18 , the deformation guide structure of the present invention can be installed on a paper pad forming machine, and the paper outlet 500 of the outer channel 7 is docked with the inlet of the paper pad forming machine, so that the bottom of the paper outlet 500 of the outer channel 7 can be slightly higher than the bottom of the inlet of the paper pad forming machine, and the width of the paper outlet 500 of the outer channel 7 can be greater than the width of the inlet of the paper pad forming machine to ensure that the paper pad will not be stuck at the junction of the two. At the same time, ensure that the bottom of the inner channel component 8 is lower than the bottom of the inner flow channel in the paper pad forming machine and lower than the center plane between the two forming gears arranged up and down in the paper pad forming machine; when the raw material (i.e., paper material) is a paper pad, the starting end of the paper pad is passed around the top of the guide roller 61 And enter the bottom of the inner channel component 8 from the bottom of the bottom roller 62, and under the traction of the two forming gears arranged up and down in the paper pad forming machine, the paper pad moves from the paper inlet 400 of the outer channel 7 to the paper outlet 500. Since the outer channel 7 is gradually contracted in the horizontal and vertical directions from the paper inlet 400 to the paper outlet 500, under the action of the outer channel 7, the two sides of the paper pad will be folded or bent toward the middle of the paper pad to form a three-dimensional paper material with a smaller width, so as to provide the paper pad forming machine for the next step of processing and forming. Since the top of the guide roller 61 is higher than the bottom of the bottom roller 62, the bottom of the inner channel component 8 is lower than the bottom of the bottom roller 62, and the two ends of the bottom roller 62 are conical, the bottom roller 62 The two ends of the inner channel component 8 and the end of the paper inlet 400 of the outer channel 7 will pre-bend the two side edges of the paper pad, so that the subsequent deformation of the two side edges of the paper pad in the outer channel 7 will be smooth, and the two arc-shaped guide blocks 81 on the inner channel component 8 can prevent the two corners of the inner channel component 8 from cutting the paper pad, and the flanges 803 on both sides of the inner channel component 8 can ensure that the paper pad will not be scratched by the two sides of the inner channel component 8 when it is quickly transported between the inner channel component 8 and the outer channel 7. The design of the inclined end of the inner channel component 8 and the outward turning part 71 on the outer channel 7 can ensure that the paper pad smoothly enters the bottom of the inner channel component 8, ensuring the smoothness of paper pad loading; when the raw material When the (i.e. paper material) is pre-folded paper, the inner channel component 8 can be removed, or the deformation guide structure can be directly removed, and the paper pad forming machine can directly process and shape the pre-folded paper. The deformation guide structure of the present invention can be used as a supplementary structure for the current paper pad forming machine that directly processes pre-folded paper. According to needs, the paper pad forming machine can directly process and shape the pre-folded paper, and can also connect the deformation guide structure to process and shape the non-pre-folded paper pad, thereby increasing the applicability of the existing paper pad forming machine, so that the existing paper pad forming machine can meet the needs of two types of paper materials (paper pads and pre-folded paper), can adapt to the processing needs of different paper materials, and does not affect the volume of the paper pad forming machine body.

[0186] Example 6:

[0187] FIG. 19 schematically shows the structure of a deformation guiding structure according to a fourth embodiment of the present invention.

[0188] 19 , the deformation guiding structure includes an outer channel 7, an inner channel component 8, a guide roller 61 and a bottom roller 62. In addition, the paper pad guiding deformation mechanism also includes a gantry-shaped support structure 9, a second support frame 10 and a second guide roller 11.

[0189] Compared with Example 5, the structures and connection relationships of the outer channel 7, inner channel component 8, guide roller 61, and bottom roller 62 of this embodiment are the same as those of Example 5, except that a gantry-shaped support structure 9, a second support frame 10, and a second guide roller 11 are added to Example 5.

[0190] The bottom of the outer channel 7 is mounted on the gantry-shaped support structure 9. Specifically, referring to Figure 19, a second mounting plate 91 is fixed to the top of the gantry-shaped support structure 9. The bottom of the outer channel 7 can be fixed on the top of the second mounting plate 91 by a bolt-nut structure. The side of the second mounting plate 91 is formed with a lug 911. The lug 911 is used to install and fix the head part of the paper pad forming machine (as shown in Figure 20) to improve the stability of the paper pad forming machine during operation. After the deformation guide structure is connected to the paper pad forming machine, the raw materials can be stacked in the gantry-shaped support structure 9, thereby greatly reducing the floor space occupied by the raw materials.

[0191] Referring to Figure 19, in this embodiment, the gantry-shaped support structure 9 includes a first gantry-shaped support 901 and a second gantry-shaped support 902 arranged in parallel, the second mounting plate 91 is fixed to the top of the first gantry-shaped support 901, the bottom of the outer channel 7 is mounted on the second mounting plate 91 on the first gantry-shaped support 901, the second gantry-shaped support 902 is used to install and fix the paper pad forming machine, a plate body can be installed on the top of the second gantry-shaped support 902, and the paper pad forming machine can be installed and fixed on the plate body on the top of the second gantry-shaped support 902 by a bolt-nut structure, and the first gantry-shaped support 901 and the second gantry-shaped support 902 can be connected by two The rod body 903 is connected to ensure the overall stability. In addition, the top of the second gantry-shaped bracket 902 is lower than the top of the first gantry-shaped bracket 901. In this way, it is convenient to make the bottom of the paper outlet of the outer channel 7 slightly higher than the bottom of the inlet of the paper pad forming machine to ensure that the paper pad will not be stuck at the junction of the two. After the deformation guide structure is connected to the paper pad forming machine, the raw materials can be stacked in the first gantry-shaped bracket 901 and the second gantry-shaped bracket 902 (the state shown in Figure 21), which greatly reduces the floor space occupied by the raw materials. Moreover, the first gantry-shaped bracket 901 can provide support for the outer channel 7, and the second gantry-shaped bracket 902 can provide support for the paper pad forming machine.

[0192] Referring to Figure 19, the second support frame 10 is fixed to the bottom of the first gantry-shaped bracket 901 and the second gantry-shaped bracket 902. Casters 101 are installed at the bottom of the second support frame 10. There are four casters 101, and the four casters 101 are respectively installed at the four corners of the second support frame 10. The casters 101 can have their own braking function. The gantry-shaped bracket structure 9 can stand steadily through the second support frame 10. In order to ensure the overall stability, the second support frame 10 can be U-shaped, and the casters 101 at the bottom of the second support frame 10 facilitate the overall movement.

[0193] A guide rod 92 is installed on the gantry-shaped support structure 9. Specifically, referring to Figure 19, in this embodiment, a guide rod 92 is installed on one side of the top of the first gantry-shaped support 901, and a guide rod 92 is installed on both sides of the top of the second gantry-shaped support 902. In this way, the raw materials stacked in the gantry-shaped support structure 9 can smoothly enter between the inner channel component 8 and the outer channel 7 through the guide rod 92.

[0194] In addition, referring to Figure 19, a second guide roller 11 is installed between the left extension plate 7011 of the left side plate 701 of the outer channel 7 and the right extension plate 7021 of the right side plate 702. The second guide roller 11 is located on the side and below the guide roller 61. In this way, the raw materials stacked in the gantry-shaped support structure 9 pass between the second guide roller 11 and the guide roller 61, bypass the top of the guide roller 61 and enter the bottom of the inner channel component 8 from the bottom of the bottom roller 62. The second guide roller 11 can effectively prevent the paper pad between the guide roller 61 and the guide rod 92 from loosening.

[0195] FIG20 schematically shows a state in which the paper cushion forming machine is installed on the deformation guide structure shown in FIG19.

[0196] Referring to Figure 20, when the deformation guiding structure of the present invention is connected to the paper pad forming machine 12 for processing pre-folded paper, the paper pad forming machine 12 is installed on the plate at the top of the second gantry-shaped bracket 902, and the paper outlet of the outer channel 7 is connected to the inlet of the paper pad forming machine 12, so that the bottom of the paper outlet of the outer channel 7 is slightly higher than the bottom of the inlet of the paper pad forming machine 12. At the same time, through size design, the width of the paper outlet of the outer channel 7 is greater than the width of the inlet of the paper pad forming machine 12. In this way, it is ensured that the paper pad will not be stuck at the junction of the paper outlet of the outer channel 7 and the inlet of the paper pad forming machine 12. In addition, it is also necessary to ensure that the bottom of the inner channel component 8 is lower than the bottom of the inner flow channel 121 in the paper pad forming machine 12 and lower than the center plane between the two upper and lower forming gears (not shown) in the paper pad forming machine 12.

[0197] FIG. 21 schematically shows the use status of the deformation guide structure and paper pad forming machine shown in FIG. 20 .

[0198] Referring to Figure 21, multiple stacks of paper pads 100 are stacked in the first gantry-shaped bracket 901 and the second gantry-shaped bracket 902, and the starting end of the paper pad 100 is passed around the guide rod 92 (as shown in Figure 20), then passed between the second guide roller 11 and the guide roller 61, and then passed around the top of the guide roller 61 and entered the bottom of the inner channel component 8 from the bottom of the bottom roller 62. Under the traction of the paper pad forming machine 12, the paper pad moves from the paper inlet of the outer channel 7 to the paper outlet. Under the action of the outer channel 7, the two sides of the paper pad will be folded or bent toward the middle of the paper pad to form a three-dimensional paper material with a smaller width, so that the paper pad forming machine 12 can carry out the next step of processing and forming. Since the top of the guide roller 61 is higher than the bottom of the bottom roller 62, the bottom of the inner channel component 8 is lower than the bottom of the bottom roller 62, and the two ends of the bottom roller 62 are conical, the two ends of the bottom roller 62 and the end of the inner channel component 8 close to the paper inlet of the outer channel 7 will press the two sides of the paper pad. The paper pad is pre-bent so that the two side edges of the paper pad can be smoothly deformed in the outer channel 7, and the two arc-shaped guide blocks 81 on the inner channel component 8 can prevent the two corners of the inner channel component 8 from cutting the paper pad; when the raw material (i.e., paper material) is pre-folded paper, the inner channel component 8 can be removed (or the deformation guide structure can be directly removed as a whole), and the paper pad forming machine 12 can directly process and shape the pre-folded paper. The deformation guide structure of the present invention can be used as a supplementary structure of the current paper pad forming machine 12 that directly processes pre-folded paper. According to needs, the paper pad forming machine 12 can directly process and shape the pre-folded paper, and can also connect the deformation guide structure to process and shape the non-pre-folded paper pad, thereby increasing the applicability of the existing paper pad forming machine, so that the existing paper pad forming machine can meet the needs of two types of paper materials (paper pads and pre-folded paper), can adapt to the processing needs of different paper materials, and does not affect the volume of the paper pad forming machine body.

[0199] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A paper pad feeding method, characterized in that: The following steps are involved: a. Place at least one stack of unpre-folded continuous paper pads on the cart, and when the number of stacks of paper pads is multiple, the stacks of paper pads are arranged front and back along the direction of the paper pads; b. The head of the paper pad on the cart starts to be transported; c. Deforming the two sides of the paper pad so that the two sides of the paper pad are folded or bent toward the middle of the paper pad; d. The deformed paper pad enters the paper pad forming machine, which makes the paper pad into a three-dimensional cushioning paper pad.

2. The paper feeding method according to claim 1, characterized in that: In the step a, When there are multiple stacks of paper pads on the cart in the height direction, the tail of the upper stack is glued to the head of the adjacent lower stack, and each stack of paper pads is a continuous paper pad that is not pre-folded, or When there are multiple stacks of paper pads arranged in the paper feeding direction, the tail of the stack of paper pads close to the paper pad forming machine is glued to the head of the next stack of paper pads away from the paper pad forming machine, or When there are multiple stacks of paper pads arranged front and back along the paper-loading direction of the paper pad and there are also multiple stacks of paper pads on the cart in the height direction, the tail of the upper stack of paper pads is glued to the head of the adjacent lower stack of paper pads, and the tail of the lowest stack of paper pads close to the paper pad forming machine is glued to the head of the adjacent highest stack of paper pads away from the paper pad forming machine.

3. The paper feeding method according to claim 2, characterized in that: The bonding methods include gluing, taping or using the adhesive tape on the paper pad.

4. The paper feeding method according to claim 1, characterized in that: In the step a, the same stack of continuous paper pads that are not pre-folded is divided into multiple piles, which are placed on a cart, and the multiple piles of paper pads are arranged front to back along the paper loading direction of the paper pads.

5. The deformation guiding structure is characterized in that: include: Bracket; and A deformation mechanism is used for folding or bending both side edges of the paper pad toward the middle of the paper pad, and the deformation mechanism is arranged on the bracket.

6. The deformation guiding structure according to claim 5, characterized in that: The deformation mechanism includes a guide roller, a pressing part, a deformation part and a discharge port. The depression part is located between the guide roller and the discharge port, and the guide roller is higher than the plane where the depression part is located. The width of the discharge port is smaller than the length of the guide roller. The deformation portion is located between the guide roller and the discharge port, and the deformation portion can guide the two side edges of the paper pad to fold or bend toward the middle of the paper pad.

7. The deformation guiding structure according to claim 6, characterized in that: The deformation portion includes a guide portion and a flange portion. The guide part is located between the guide roller and the discharge port, and the guide part can guide the two sides of the paper pad to fold or bend toward the middle of the paper pad. The flanging portion is located between the guide portion and the discharge port, the lowest point of the flanging portion is lower than the lowest point of the guide portion, and the flanging portion can further fold or bend both side edges of the paper pad toward the middle of the paper pad.

8. The deformation guiding structure according to claim 7, characterized in that: The deformation mechanism further includes a side guide portion, which is provided on the guide portion and arranged at an obtuse angle to the guide portion. The side guide portion can drive the two sides of the paper pad to fold or bend toward the middle of the paper pad.

9. The deformation guiding structure pad according to claim 7, characterized in that: The deformation mechanism also includes a pressing portion, which is located between the flanging portion and the discharge port. The lowest point of the pressing portion is lower than the lowest point of the flanging portion. The pressing portion can press down the two side edges of the paper pad that are folded or bent toward the middle to further deform the two side edges of the paper pad.

10. The deformation guiding structure according to claim 6, characterized in that: The discharge port is provided with two pressing rollers distributed up and down and with adjustable spacing. When the deformed paper pad passes between the two pressing rollers, the two pressing rollers can indent and shape the deformed paper pad.

11. The deformation guiding structure according to any one of claims 6 to 10, characterized in that: It also includes a frame, the deformation mechanism is arranged on the frame, and the frame is arranged on the bracket, The guide roller is arranged on one side of the frame, and the discharge port is arranged on the other side of the frame. The frame is provided with a separation rod for separating the two sides of the paper pad, and the bottom of the separation rod is provided on the pressing part. A first guide roller is provided in the frame, and the first guide roller is located between the guide roller and the end of the depression portion.

12. The deformation guiding structure according to claim 11, characterized in that: The bottom of the first guide roller is flush with the bottom of the depressed portion.

13. The deformation guiding structure according to claim 5, characterized in that: The deformation mechanism includes a guide roller, a bottom roller and a flow channel. The guide roller and bottom roller are both arranged at the entrance of the flow channel, and the guide roller is located obliquely above the bottom roller. Both ends of the bottom roller are conical. The flow channel is convergent from the inlet to the outlet.

14. The deformation guiding structure according to claim 13, characterized in that: The flow channel includes a bottom plate and side plates. The width of the bottom plate gradually decreases from the inlet to the outlet. The side plates are arranged on both sides of the bottom plate. The ends of the guide rollers are arranged on the side plates. The ends of the bottom rollers are arranged on the side plates.

15. The deformation guiding structure according to claim 14, characterized in that: The side panels are in a bent shape capable of folding or bending both side edges of the paper pad toward the middle of the paper pad.

16. The deformation guiding structure according to claim 5, characterized in that: It also includes a rotation adjustment part for adjusting the pitch angle of the deformation mechanism, and the rotation adjustment part is arranged between the deformation mechanism and the bracket.

17. The deformation guiding structure according to claim 16, characterized in that: The rotation adjustment part includes a first support frame, a first mounting plate and an adjustment rod. The first support frame is arranged on the top of the bracket, the first mounting plate is arranged on the deformation mechanism, and the first mounting plate is provided with a plurality of plug holes arranged in an arc. The adjustment rod passes through the first support frame and is plugged into the plug hole.

18. The deformation guiding structure according to claim 5, characterized in that: It also includes a connecting rod for connecting to a paper pad forming machine, one end of the connecting rod is provided on a bracket or a deformation mechanism and is detachably connected to the bracket or the deformation mechanism, and the other end of the connecting rod can be connected to an external paper pad forming machine.

19. The deformation guiding structure is characterized in that: include: An outer channel, wherein both sides of the outer channel are folded or bent toward the middle to drive both sides of the paper pad to be folded or bent toward the middle of the paper pad, and the two sides of the outer channel are converged in the direction from the paper inlet to the paper outlet of the outer channel; an inner channel component, the inner channel component being disposed in the outer channel; A guide roller, the guide roller being arranged at the paper inlet of the outer channel; and The bottom roller is arranged at the paper inlet of the outer channel, and is located between the guide roller and the inner channel component. The top of the guide roller is higher than the bottom of the bottom roller, and the bottom of the inner channel component is lower than the bottom of the bottom roller.

20. The deformation guiding structure according to claim 19, characterized in that: The distance between the bottom of the inner channel component and the inner bottom of the outer channel is 5 to 50 mm.

21. The deformation guiding structure according to claim 19, characterized in that: Arc-shaped guiding blocks are respectively provided at two corners of the end of the inner channel component close to the paper feed port of the outer channel.

22. The deformation guiding structure according to claim 19, characterized in that: An outward-turned portion is provided near the paper inlet of the outer channel, and the outward-turned portion is arranged at an obtuse angle to the outer bottom of the outer channel.

23. The deformation guiding structure according to claim 19, characterized in that: The end of the inner channel component close to the paper inlet of the outer channel is in an inclined shape, and the plane where the end of the inner channel component close to the paper inlet of the outer channel is located is arranged at an obtuse angle to the bottom of the inner channel component.

24. The paper pad guiding and deforming mechanism according to claim 19, characterized in that: Both ends of the bottom roller are in a conical shape.

25. The deformation guiding structure according to claim 19, characterized in that: Both sides of the inner channel component are respectively provided with flanges.

26. The deformation guiding structure according to claim 19, characterized in that: The inner channel component is detachably connected to the outer channel.

27. The deformation guiding structure according to claim 19, characterized in that: The width of the inner channel component gradually decreases in a direction from the paper inlet to the paper outlet of the outer channel.

28. The deformation guiding structure according to any one of claims 19 to 27, characterized in that: It also includes a gantry-shaped support structure, and the bottom of the outer channel is arranged on the gantry-shaped support structure.

29. The deformation guiding structure according to claim 28, characterized in that: A second mounting plate is provided on the top of the gantry-shaped support structure, the bottom of the outer channel is provided on the top of the second mounting plate, and the side of the second mounting plate is used to mount and fix the head part of the paper pad forming machine. When the head part of the paper pad forming machine is installed on the side of the second mounting plate, the bottom of the inner channel component is lower than the bottom of the inner flow channel in the paper pad forming machine and lower than the center plane between the two upper and lower forming gears in the paper pad forming machine.

30. The deformation guiding structure according to claim 28, characterized in that: The gantry-shaped support structure includes a first gantry-shaped support and a second gantry-shaped support arranged in parallel. The bottom of the outer channel is arranged on the first gantry-shaped support, and the second gantry-shaped support can be mounted and fixed with a paper pad forming machine.

31. The deformation guiding structure according to claim 30, characterized in that: The top of the second gantry-shaped support is lower than the top of the first gantry-shaped support.

32. The deformation guiding structure according to claim 28, characterized in that: It also includes a second support frame, the gantry-shaped support structure is arranged on the second support frame, and casters are arranged at the bottom of the second support frame.

33. The deformation guiding structure according to claim 28, characterized in that: A guide rod is provided on the gantry-shaped support structure.

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