Paper pad machine paper feeding guide device with safety protection function and paper pad machine comprising paper pad machine paper feeding guide device

Abstract

The invention discloses a paper pad machine paper feeding guide device with a safety protection function and a paper pad machine comprising the paper pad machine, the paper pad machine paper feeding guide device comprises a starting section, a middle section and a tail section, the starting section, the middle section and the tail section are sequentially arranged in the paper feeding direction of a paper inlet of the paper pad machine, the starting section can drive the two sides of paper to be bent, and the tail section can drive the two sides of the paper to be bent. The width of the first end of the middle section is not larger than the maximum width of the starting section, the width of the second end of the middle section is not smaller than the maximum width of the tail section, and the two sides of the middle section are folded in the direction from the first end to the second end. A certain distance is kept between the end, close to a paper inlet of the paper pad machine, of the tail section and the paper inlet of the paper pad machine so that fingers can be prevented from stretching into the paper inlet of the paper pad machine. According to the paper feeding guide device of the paper pad machine, the two functions of safety protection and paper feeding guide of a paper inlet of the paper pad machine can be achieved, the safety protection function module and the paper feeding guide function module are integrated, the installation space of equipment is saved, and the overall layout is more reasonable.

Description

TECHNICAL FIELD

[0001] The present application relates to a paper pad machine paper guiding device with safety protection function and a paper pad machine comprising the same. BACKGROUND

[0002] The paper pad machine is a packaging equipment for processing paper into paper pad to fill in the packaging box, playing a role of buffering and shockproof, protecting the product from being damaged in the transportation process.

[0003] In the prior art, the paper inlet of small paper pad machines generally adopts an open horn-shaped structure, which exposes the driving paper guiding rubber wheel and the driven paper guiding rubber wheel inside the machine to the range accessible by the operator. During the operation of the equipment, the fingers of the operator are easily wrapped in the high-speed relative rotating rubber wheels together with the paper, which poses a serious mechanical injury risk and seriously threatens the personal safety of the operator. The current design only relies on safety warning signs, and lacks a physical safety protection structure integrated in the paper inlet itself, which can fundamentally prevent the intrusion of human body parts into the dangerous area.

[0004] In the prior art, in order to solve the safety hazard that the fingers of the operator are inserted into the paper inlet and touch the internal paper guiding rubber wheel, the technical means mainly adopted is to reduce the radial size of the end of the paper inlet to form a physical limiting structure. This structure aims to prevent human fingers from reaching the dangerous area by limiting the passage hole diameter, but the narrow limiting structure will cause the paper sent into to produce intense friction and interference with the inner wall of the paper inlet, significantly increasing the internal pulling force required for paper feeding, reducing the smoothness of paper feeding, and the increased paper feeding resistance directly translates into additional load on the driving paper guiding rubber wheel and its driving motor. This additional load easily causes the motor working current to rise, posing an overload risk, forcing the system to reduce the paper feeding speed to ensure operation, thereby causing the production efficiency of the whole machine to decrease, and moreover, when the paper forcibly passes through the narrow limiting structure, its initial form is uncontrollably squeezed and deformed. This pre-deformation destroys the consistency of the initial conditions required by the subsequent folding process in the paper pad machine, which adversely affects the stability of the loftiness, uniformity and buffering performance of the finally formed paper pad.

[0005] In addition, the horn-shaped paper inlet of the existing paper mat machine only has a simple guiding function, and the shape and structure thereof cannot effectively regulate and position the paper being fed, so that the initial state (including but not limited to the feeding angle, the crumpled shape and the entering point position) of the paper when entering the core folding mechanism of the paper mat machine has great randomness. This instability of the paper feeding state is directly transmitted to the subsequent paper feeding process, so that the paper mat produced by the paper mat machine has significant differences in the bulkiness, the uniformity of the wrinkles and the overall shape, and cannot guarantee the consistency and reliability of the product cushioning performance, thereby affecting the packaging quality and the quality of the final product. Meanwhile, the existing paper mat machine lacks an effective paper guiding and separating mechanism, so that the paper feeding state is random and multiple papers are easily fed in a superimposed manner, which causes the load of the driving system to suddenly change, affects the service life of the motor and the forming stability, and indirectly increases the safety operation hidden danger.

[0006] In the prior art, a fixed bracket-type guiding mechanism is usually arranged upstream of the paper inlet of the paper mat machine to preliminarily stretch the folded paper before the paper inlet, and the bracket-type guiding mechanism has a simple structure. The guiding surface shape and angle thereof lack accurate design for the mechanical behavior of the paper, and cannot effectively correct and constrain the non-ideal feeding posture of the paper such as skewing and bending, so that the paper cannot enter the paper feeding rubber wheel in a constant and ideal posture. The bracket-type guiding mechanism itself may intrude into the paper feeding path, forming a local interference point, and in some working conditions, the bracket-type guiding mechanism cannot promote the paper feeding, but rather has a certain negative impact on the paper feeding speed.

[0007] Therefore, how to overcome the above technical defects is a technical problem to be solved by those skilled in the art. SUMMARY

[0008] The object of the present application is to provide a paper mat machine paper feeding guiding device with a safety protection function and a paper mat machine comprising the same, so as to solve at least one of the above technical problems.

[0009] According to one aspect of the present application, a paper mat machine paper feeding guiding device with a safety protection function is provided, comprising a starting section, an intermediate section and a tail section, the starting section, the intermediate section and the tail section being arranged in sequence along the paper feeding direction of the paper inlet of the paper mat machine,

[0010] The starting section can drive the two sides of the paper to be bent,

[0011] The width of the first end of the intermediate section is not greater than the maximum width of the starting section, the width of the second end of the intermediate section is not less than the maximum width of the tail section, and the two sides of the intermediate section are in a converging shape from the first end to the second end,

[0012] The end of the tail section close to the paper inlet of the paper mat machine is spaced apart from the paper inlet of the paper mat machine to prevent fingers from being inserted into the paper inlet of the paper mat machine.

[0013] The paper mat machine paper feeding guide device of the application is installed at the paper feeding port of the paper mat machine, the starting section, the middle section and the tail section are arranged in sequence along the paper feeding direction of the paper feeding port of the paper mat machine, the end of the tail section is kept at a certain distance from the paper feeding port of the paper mat machine, the raw paper is usually placed below the starting section, the width of the paper is usually greater than the maximum width of the starting section, the starting end of the paper is wound around the top of the starting section and enters the paper feeding port of the paper mat machine from the top of the middle section and the tail section, during the paper feeding process, the starting section can drive the two sides of the paper to bend downward, thereby pre-deforming the two sides of the paper, due to the fact that the two sides of the middle section are in a converging shape from the first end to the second end, under the action of the middle section, the two sides of the paper will continue to bend to the middle to form a three-dimensional paper material with a smaller width and enter the paper feeding port of the paper mat machine, the paper mat machine paper feeding guide device of the application can adjust the contraction state of the paper entering the paper feeding port of the paper mat machine, accurately guide the shape and angle of the paper entering the paper feeding port, timely correct and constrain the non-ideal feeding posture of the paper such as skewing and bending, make the paper enter the paper feeding port of the paper mat machine in a stable and smooth posture, ensure that the paper entering the paper feeding port is guided and converged naturally and with low resistance, and ensure the stability of the bulkiness, uniformity and buffering performance of the output paper mat, and the end of the tail section close to the paper feeding port of the paper mat machine is kept at a certain distance from the paper feeding port of the paper mat machine, which does not affect the paper entering the paper feeding port of the paper mat machine and can prevent adult fingers from entering the paper feeding port of the paper mat machine, by controlling the distance, it can be physically ensured that adult fingers cannot pass through the paper feeding port and touch the paper feeding rubber wheel inside, thereby achieving intrinsic safety, the paper mat machine paper feeding guide device of the application can realize the functions of safety protection and paper feeding guidance of the paper feeding port of the paper mat machine, integrate the two function modules of safety protection and paper feeding guidance into one, save the installation space of the equipment, and make the overall layout more reasonable.

[0014] In some embodiments, the starting section, the middle section and the tail section can be connected in sequence along the paper feeding direction of the paper feeding port of the paper mat machine in one piece, and the two sides of the starting section, the middle section and the tail section are arc-shaped.

[0015] Therefore, the starting section, the middle section and the tail section formed in one piece can make the bending deformation of the two sides of the paper smoothly transition and smoothly shrink into a three-dimensional paper material with a smaller width, the arc-shaped two sides of the starting section, the middle section and the tail section can guide the two sides of the paper to gradually bend downward, and can also reduce the friction force given to the paper by the two sides of the starting section, the middle section and the tail section, so that the paper is more smoothly and low-resistance pulled.

[0016] In some embodiments, the starting section can be a roller, and the two ends of the roller are arc-shaped.

[0017] Thus, before the paper is fed, the starting end of the paper is wound over the top of the roller and enters the paper inlet of the paper pad machine from the top of the middle section and the tail section, and during the paper feeding process, the arc-shaped two ends of the roller can drive the two sides of the paper to bend downward to pre-deform the two sides of the paper.

[0018] In some embodiments, the middle section and the tail section can be integrally connected in sequence along the feeding direction of the paper inlet of the paper pad machine, and the two sides of the middle section and the tail section are arc-shaped.

[0019] Thus, the integrally formed middle section and tail section can make the bending deformation of the two sides of the paper smoothly transition, and the two sides of the middle section and the tail section are arc-shaped, which can guide the two sides of the paper to gradually bend downward and deform, and can reduce the friction force applied to the paper by the two sides of the middle section and the tail section, so that the paper can be more smoothly pulled.

[0020] In some embodiments, the middle positions of the two sides of the middle section can be bulged.

[0021] Thus, this can effectively reduce the turning angles of the two ends of the starting section and the two ends of the tail section, prevent the turning angles of the two ends of the starting section and the two ends of the tail section from being too large to increase the friction force on the paper, affect the paper feeding, and scratch the paper, and ensure that the paper can be more smoothly pulled.

[0022] In some embodiments, the top of the middle section can be not lower than the top of the starting section and the tail section, the top of the middle section and the top of the starting section are arc-shapedly transitioned, and the top of the middle section and the top of the tail section are arc-shapedly transitioned.

[0023] Thus, the top of the middle section being not lower than the top of the starting section and the tail section can ensure that the paper is taut during the paper feeding process, prevent the paper from being loose, and make the paper enter the paper inlet of the paper pad machine in a stable and smooth manner, and the arc-shaped transition can reduce the friction force applied to the paper by the combination positions of the top of the middle section and the top of the starting section and the combination positions of the top of the middle section and the top of the tail section, so that the paper can be more smoothly and low-resistance pulled.

[0024] In some embodiments, the middle position of the top of the tail section can be provided with a recess.

[0025] Thus, before the paper is fed, the starting end of the paper can be very conveniently inserted into the paper inlet of the paper pad machine through the recess.

[0026] In some embodiments, the maximum width of the starting section is smaller than the width of the paper processed by the paper pad machine.

[0027] Thus, this can ensure that the two ends of the starting section can drive the two sides of the paper to bend downward during the paper feeding process to pre-deform the two sides of the paper.

[0028] In some embodiments, a mounting rack can also be included, one end of the mounting rack being arranged on the bottom of any one of the starting section, the middle section, and the tail section, and the other end of the mounting rack being arranged on the paper pad machine.

[0029] In this way, the paper pad machine paper feeding guide device can be very conveniently mounted at the paper feeding port of the paper pad machine through the mounting rack.

[0030] According to another aspect of the present application, a paper pad machine is also provided, comprising a paper pad machine body and a paper pad machine paper feeding guide device, one end of the mounting rack being arranged on the bottom of the paper pad machine body, and the end of the tail section close to the paper feeding port of the paper pad machine body being spaced apart from the paper feeding port of the paper pad machine body to prevent fingers from being inserted into the paper feeding port of the paper pad machine body.

[0031] The paper pad machine of the present application, the raw paper is usually placed below the starting section, the width of the paper is usually greater than the maximum width of the starting section, the starting end of the paper is wound around the top of the starting section and enters the paper feeding port of the paper pad machine body from the top of the middle section and the tail section, during the paper feeding process, the paper pad machine paper feeding guide device can adjust the contraction state of the paper entering the paper feeding port of the paper pad machine body, accurately guide the shape and angle of the paper entering the paper feeding port, and timely correct and constrain the non-ideal feeding posture of the paper, such as skew and bending, so that the paper enters the paper feeding port of the paper pad machine body in a stable and smooth posture, ensuring that the paper entering the paper feeding port is guided and converged naturally and with low resistance, and ensuring the stability of the loftiness, uniformity, and cushioning performance of the paper pad produced by the paper pad machine. Moreover, the end of the tail section close to the paper feeding port is spaced apart from the paper feeding port, which does not affect the paper entering the paper feeding port and prevents fingers from being inserted into the paper feeding port. By controlling the size of the spacing, it is physically ensured that an adult's finger cannot pass through the paper feeding port and touch the paper feeding rubber wheel inside the paper pad machine body, achieving intrinsic safety. The paper pad machine paper feeding guide device can realize the functions of safety protection and paper feeding guidance of the paper feeding port of the paper pad machine body, integrating the two function modules of safety protection and paper feeding guidance, saving the installation space of the paper pad machine, and making the layout of the paper pad machine more reasonable.

[0032] In some embodiments, the paper feeding port of the paper pad machine body can have a shape of gradually decreasing longitudinal cross-sectional area.

[0033] In this way, after the paper is guided by the paper pad machine paper feeding guide device, it is squeezed and contracted at the paper feeding port with a shape of gradually decreasing longitudinal cross-sectional area and deformed into a paper pad entering the paper pad machine body.

[0034] In some embodiments, the spacing between the end of the tail section close to the paper feeding port of the paper pad machine body and the position of the minimum spacing of the inner wall of the paper feeding port can be less than or equal to 5 cm.

[0035] Thus, the design of the maximum distance of 5 cm neither affects the paper entering the paper inlet nor prevents the adult fingers from entering the port of the paper feeding rubber wheel inside the paper pad machine body, physically ensuring that the adult fingers cannot pass through the paper inlet and touch the paper feeding rubber wheel inside the paper pad machine body, and achieving intrinsic safety.

[0036] In some embodiments, the end of the tail section close to the paper inlet of the paper pad machine body can be in a suspended state.

[0037] Thus, the end of the tail section in a suspended state can ensure that the end of the tail section does not affect the deformed paper to smoothly enter the paper inlet.

[0038] In some embodiments, the end of the tail section close to the paper inlet of the paper pad machine body extends into the plane where the end of the maximum longitudinal cross-sectional area of the paper inlet is located.

[0039] Thus, the design neither affects the paper entering the paper inlet nor prevents the adult fingers from entering the port of the paper feeding rubber wheel inside the paper pad machine body, physically ensuring that the adult fingers cannot pass through the paper inlet and touch the paper feeding rubber wheel inside the paper pad machine body, and achieving intrinsic safety.

[0040] In some embodiments, the mounting bracket can include a horizontal part and a connecting part, one end of the horizontal part is arranged on the bottom of the paper pad machine body, one end of the connecting part is arranged on the other end of the horizontal part, and the other end of the connecting part is arranged on the bottom of any one of the starting section, the middle section, and the tail section.

[0041] Thus, the mounting bracket is composed of the horizontal part and the connecting part, which can make the connecting part away from the plane where the end of the maximum longitudinal cross-sectional area of the paper inlet is located, preventing the connecting part from affecting the paper feeding and avoiding the deformed paper winding on the connecting part.

[0042] In some embodiments, the connecting part and the horizontal part can be arranged at an obtuse angle to make the other end of the connecting part away from the plane where the end of the maximum longitudinal cross-sectional area of the paper inlet is located.

[0043] Thus, the arrangement of the connecting part and the horizontal part at an obtuse angle can prevent the connecting part from affecting the paper feeding and avoid the deformed paper winding on the connecting part.

[0044] In some embodiments, the mounting position of the mounting bracket on the bottom of the paper pad machine body is adjustable.

[0045] Thus, according to the shape of the inner wall of the paper inlet, the mounting position of the mounting bracket on the bottom of the paper pad machine body can be adjusted, so as to adjust the distance between the end of the tail section close to the paper inlet of the paper pad machine body and the inner wall of the paper inlet, so that the distance neither affects the paper entering the paper inlet nor prevents the adult fingers from entering the port of the paper feeding rubber wheel inside the paper pad machine body. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0047] Figure 2 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 1 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0048] Figure 3 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 1 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0049] Figure 4 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 1 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0050] Figure 5 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 1 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0051] Figure 6 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0052] Figure 7 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 6 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0053] Figure 8 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 6 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0054] Figure 9 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 8 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0055] Figure 10 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 6 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0056] Figure 11 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 10 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application;

[0057] Figure 12 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; Figure 6 Structure diagram of a paper guiding device of a paper pad machine with safety protection function according to an embodiment of the present application; DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0059] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. It should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements.

[0060] Figures 1 to 5 The diagram schematically illustrates the structure of a paper feed guide device for a paper pad machine with safety protection function according to one embodiment of the present invention.

[0061] refer to Figures 1 to 5 A paper feeding guide device for a paper pad machine with safety protection features includes a starting section 1, a middle section 2, and a tail section 3. Furthermore, the paper feeding guide device may also include a mounting frame 4.

[0062] refer to Figure 5 The starting segment 1, the middle segment 2, and the ending segment 3 are arranged from bottom to top, with the first end of the middle segment 2 ( Figure 5 The width of the lower end of the middle segment 2 is not greater than the maximum width of the starting segment 1. The maximum width of the starting segment 1 is the width between the two corners at the left and right ends of the starting segment 1. The second end of the middle segment 2 ( Figure 5 The width of the upper end of the middle section 2 is not less than the maximum width of the tail section 3. The two sides of the middle section 2 taper from the first end to the second end. When the paper feeding guide device of the paper pad machine is installed on the paper pad machine, the starting section 1, the middle section 2, and the tail section 3 are arranged sequentially along the paper feeding direction of the paper pad machine's inlet 51. The end of the tail section 3 near the paper pad machine's inlet 51 maintains a certain distance from the paper pad machine's inlet 51 to prevent fingers from being inserted into the paper pad machine's inlet. Figure 6 (As shown); In this embodiment, the starting segment 1, the middle segment 2, and the tail segment 3 are integrally formed and connected in sequence. The starting segment 1, the middle segment 2, and the tail segment 3 are generally conical in shape, as shown in the reference. Figure 1, the two sides of the starting section 1, the middle section 2 and the tail section 3 are arc-shaped, the starting section 1, the middle section 2 and the tail section 3 which are integrally formed can make the bending deformation of the two sides of the paper smoothly transition, and the paper is smoothly shrunk into a three-dimensional paper material with a smaller width, the two sides of the starting section 1, the middle section 2 and the tail section 3 are arc-shaped, which can guide the two sides of the paper to gradually bend downward, and can reduce the friction force given to the paper by the two sides of the starting section 1, the middle section 2 and the tail section 3, so that the paper is more smoothly and low-resistance pulled, in the use process, the width of the paper processed by the paper mat machine is usually greater than the maximum width of the starting section 1, the raw paper is usually placed below the starting section 1, the starting section 1 can drive the two sides of the paper to bend, and the starting section 1 pre-deforms the two sides of the paper, and due to the fact that the two sides of the middle section 2 are converging from the first end to the second end, that is, the starting section 1, the middle section 2 and the tail section 3 are conical as a whole, under the action of the middle section 2, the two sides of the paper will continue to bend to the middle to form a three-dimensional paper material with a smaller width and enter the paper inlet 51 of the paper mat machine.

[0063] Reference Figure 4 and Figure 5 The two corner positions of the starting section 1 are arc-shaped, which can reduce the friction force given to the paper by the two corner positions of the starting section 1, so that the paper is more smoothly and low-resistance pulled.

[0064] In this embodiment, the maximum width of the starting section 1 is smaller than the width of the paper processed by the paper mat machine, for example, the maximum width of the starting section 1 is at least 4-6 cm smaller than the width of the paper, when the paper is running, the paper preferably runs around the top of the starting section 1 and the center line of the paper runs along the middle of the starting section 1, and the two sides of the paper are bent by 2-3 cm at the two ends of the starting section 1, which can make the pre-deformation effect of the two sides of the paper by the starting section 1 better.

[0065] In other embodiments, the starting section 1 can be a single roller, both ends of the roller are arc-shaped, such as conical, hemispherical, curved, etc., the width of the first end of the middle section 2 is not greater than the maximum width of the roller, the width of the second end of the middle section 2 is not less than the maximum width of the tail section 3, the two sides of the middle section 2 are converging from the first end to the second end, the middle section 2 and the tail section 3 are integrally connected in sequence along the paper feeding direction of the paper pad machine paper inlet 51, both sides of the middle section 2 and the tail section 3 are arc-shaped, the integrally formed middle section 2 and the tail section 3 can make the bending deformation of the two sides of the paper smoothly transition, and smoothly shrink into a three-dimensional paper material with a smaller width, and the arc-shaped two sides of the middle section 2 and the tail section 3 can guide the two sides of the paper to gradually bend downward, and can reduce the friction force given to the paper by the two sides of the middle section 2 and the tail section 3, so that the paper is more smoothly pulled. Before the paper is fed, the starting end of the paper is wound over the top of the roller and enters the paper inlet 51 of the paper pad machine from above the middle section 2 and the tail section 3. During the paper feeding process, the arc-shaped two ends of the roller can drive the two sides of the paper to bend downward, pre-deforming the two sides of the paper. Under the action of the middle section 2, the two sides of the paper will continue to bend inward to form a three-dimensional paper material with a smaller width and enter the paper inlet 51 of the paper pad machine.

[0066] Reference Figure 1 and Figure 5 In this embodiment, the middle positions of the two sides of the middle section 2 are raised, which can effectively reduce the turning angles of the two ends of the starting section 1 and the two ends of the tail section 3, prevent the turning angles of the two ends of the starting section 1 and the two ends of the tail section 3 from being too large to increase the friction force on the paper, affect the paper feeding and scratch the paper, and ensure that the paper is more smoothly pulled. Moreover, both sides of the middle section 2 are arc-shaped, the two sides of the middle section 2 and the two sides of the starting section 1 are smoothly transitioned by the arc-shaped surfaces, and the two sides of the middle section 2 and the two sides of the tail section 3 are smoothly transitioned by the arc-shaped surfaces. This can reduce the friction force given to the paper by the combination positions of the two sides of the middle section 2 and the two sides of the starting section 1 and the combination positions of the two sides of the middle section 2 and the two sides of the tail section 3, so that the paper is more smoothly and low-resistance pulled. In other embodiments, according to the paper feeding requirements and the turning angles of the two ends of the starting section 1 and the two ends of the tail section 3, the height of the raised middle positions of the two sides of the middle section 2 can be appropriately adjusted, and the two sides of the middle section 2 can also be straight.

[0067] Reference Figure 3, the top of the middle section 2 is not lower than the top of the starting section 1, the top of the middle section 2 is not lower than the top of the tail section 3, the top of the middle section 2 and the top of the starting section 1 are connected by an arc surface, and the top of the middle section 2 and the top of the tail section 3 are connected by an arc surface; since the raw paper is usually placed below the starting section 1, the starting end of the paper is wound above the starting section 1 and enters the paper inlet of the paper mat machine from above the middle section 2 and the tail section 3, the top of the middle section 2 being not lower than the top of the starting section 1 and the top of the tail section 3 can ensure that the paper is taut during the paper feeding process, prevent the paper from being loose, and enable the paper to enter the paper inlet of the paper mat machine in a stable and smooth manner, and the arc surfaces can reduce the frictional force of the combination of the top of the middle section 2 and the top of the starting section 1 and the combination of the top of the middle section 2 and the top of the tail section 3, so that the paper can be pulled more smoothly and with lower resistance.

[0068] With reference to Figure 1 and Figure 3 , in the embodiment, the top of the middle section 2 is flat, and the top of the middle section 2 and the arc surfaces on the two sides are connected by arc surfaces, which can reduce the frictional force of the combination of the top of the middle section 2 and the two sides of the middle section 2, so that the paper can be pulled more smoothly and with lower resistance. In other embodiments, according to the paper feeding requirement, the top of the middle section 2 can also be arched, the top of the middle section 2 and the arc surfaces on the two sides are connected by arc surfaces, the top of the middle section 2 and the top of the starting section 1 are connected by an arc surface, and the top of the middle section 2 and the top of the tail section 3 are connected by an arc surface, so as to reduce the frictional force of the combination of the top of the middle section 2 and the two sides of the middle section 2, the combination of the top of the middle section 2 and the top of the starting section 1, and the combination of the top of the middle section 2 and the top of the tail section 3, so that the paper can be pulled more smoothly and with lower resistance.

[0069] With reference to Figure 1 , a recess 31 is formed at the middle position of the top of the tail section 3, and the starting end of the paper can be very conveniently inserted into the paper inlet of the paper mat machine by passing through the recess 31 before paper feeding.

[0070] With reference to Figures 1 to 5 , one end of the mounting frame 4 is fixed to the bottom of any one of the starting section 1, the middle section 2 and the tail section 3, and the other end of the mounting frame 4 is used to be mounted on the paper mat machine, and in the embodiment, with reference to Figure 2 , one end of the mounting frame 4 is fixed to the recess in the bottom of the middle section 2, and the paper mat machine paper feeding guide device of the application can be very conveniently mounted at the paper inlet of the paper mat machine through the mounting frame 4.

[0071] With reference to Figures 1 to 5The paper guide device of the paper pad machine is installed at the paper inlet of the paper pad machine, the starting section 1, the middle section 2 and the tail section 3 are arranged in sequence along the paper feeding direction of the paper inlet of the paper pad machine, the end of the tail section 3 is spaced apart from the paper inlet of the paper pad machine, the raw paper is usually placed below the starting section 1, the width of the paper is usually greater than the maximum width of the starting section 1, the starting end of the paper is inserted into the paper inlet of the paper pad machine by winding over the top of the starting section 1 and passing through the recess 31 from the top of the middle section 2 and the tail section 3, in the paper feeding process, the starting section 1 can drive the two sides of the paper to bend downward, thereby pre-deforming the two sides of the paper, since the two sides of the middle section 2 are in a converging shape from the first end to the second end, that is, the starting section 1, the middle section 2 and the tail section 3 are in a conical shape as a whole, the two side edges of the paper continue to bend towards the middle to form a three-dimensional paper material with a smaller width and enter the paper inlet of the paper pad machine, since the two sides of the starting section 1, the middle section 2 and the tail section 3 are in an arc shape, and the two corner positions of the starting section 1 are in an arc shape, the paper guide device of the paper pad machine can gradually guide the two sides of the paper to bend and deform downward, and can reduce the friction force applied to the paper by the two sides of the starting section 1, the middle section 2 and the tail section 3 and the two corner positions of the starting section 1, so that the paper is more smoothly and low-resistance pulled, in addition, the middle positions of the two sides of the middle section 2 are in a bulging shape, which can effectively reduce the turning angles of the two ends of the starting section 1 and the tail section 3, prevent the turning angles of the two ends of the starting section 1 and the tail section 3 from being too large to increase the friction force on the paper, affect the paper feeding and scratch the paper, ensure that the paper is more smoothly pulled, and the top of the middle section 2 being not lower than the tops of the starting section 1 and the tail section 3 can ensure that the paper is taut during the paper feeding process, prevent the paper from being loose, and make the paper enter the paper inlet of the paper pad machine in a stable and smooth posture, the top of the middle section 2 and the top of the starting section 1 and the top of the tail section 3 are in an arc-shaped surface transition, which can reduce the friction force applied to the paper by the combination positions of the top of the middle section 2 and the top of the starting section 1 and the combination positions of the top of the middle section 2 and the top of the tail section 3, so that the paper is more smoothly and low-resistance pulled.The paper pad machine paper feeding guide device of the application can adjust the shrinkage of the paper entering the paper feeding port of the paper pad machine, accurately guide the shape and angle of the paper entering the paper feeding port, timely correct and constrain the non-ideal feeding posture of the paper such as skew and bending, make the paper enter the paper feeding port of the paper pad machine in a stable and smooth posture, ensure the natural and low-resistance guiding and converging of the paper entering the paper feeding port, and ensure the stability of the bulkiness, uniformity and buffering performance of the output paper pad. Moreover, the end of the tail section 3 close to the paper feeding port of the paper pad machine is kept a certain distance from the paper feeding port of the paper pad machine, which does not affect the paper entering the paper feeding port of the paper pad machine and can prevent adult fingers from entering the paper feeding port of the paper pad machine. By controlling the distance, it is physically ensured that adult fingers cannot pass through the paper feeding port and touch the internal paper feeding rubber wheel, realizing intrinsic safety. The paper pad machine paper feeding guide device of the application can realize the safety protection and paper feeding guide functions of the paper feeding port of the paper pad machine, integrate the safety protection and paper feeding guide function modules into one, save the installation space of the equipment, and make the overall layout more reasonable.

[0072] Figures 6 to 11 The structure of the paper pad machine in an embodiment of the application is schematically shown.

[0073] Referring to Figures 6 to 11 , the paper pad machine comprises a paper pad machine body 5 and the paper pad machine paper feeding guide device.

[0074] Referring to Figure 6 and Figure 7 , the end of the mounting frame 4 of the paper pad machine paper feeding guide device is mounted on the bottom of the paper pad machine body 5, and the end of the tail section 3 of the paper pad machine paper feeding guide device close to the paper feeding port 51 of the paper pad machine body 5 is kept a certain distance from the paper feeding port 51 of the paper pad machine body 5 to prevent fingers from entering the paper feeding port 51 of the paper pad machine body 5.

[0075] In this embodiment, referring to Figure 6 , Figure 7 , Figure 9 and Figure 11 , the paper feeding port 51 of the paper pad machine body 5 is in a converging shape with gradually decreasing longitudinal cross-sectional area, i.e., in an open horn shape. After being guided by the paper pad machine paper feeding guide device, the paper is extruded and shrunk in the converging paper feeding port 51 with gradually decreasing longitudinal cross-sectional area and deformed into a paper pad to enter the paper pad machine body 5.

[0076] Referring to Figure 8 and Figure 9In the embodiment, the distance L between the end of the tail section 3 close to the paper inlet 51 of the paper pad machine body 5 and the minimum distance position of the inner wall of the paper inlet 51 is less than or equal to 5 cm. The design of the maximum distance of 5 cm does not affect the paper entering the paper inlet 51 and can prevent adult fingers from entering the port of the paper inlet 51 close to the paper roller inside the paper pad machine body 5, physically ensuring that adult fingers cannot pass through the paper inlet 51 and touch the paper roller inside the paper pad machine body 5, achieving intrinsic safety. In other embodiments, the size of L can be appropriately adjusted according to the specific shape of the inner wall of the paper inlet 51.

[0077] Referring to Figure 9 and Figure 11 , the end of the tail section 3 close to the paper inlet 51 of the paper pad machine body 5 is in a suspended state, which can ensure that the end of the tail section 3 does not affect the smooth entry of the deformed paper into the paper inlet 51.

[0078] Referring to Figure 11 , in the embodiment, the end 100 of the tail section 3 close to the paper inlet 51 of the paper pad machine body 5 extends into the plane 200 where the end of the paper inlet 51 with the maximum longitudinal cross-sectional area is located. This design does not affect the entry of paper into the paper inlet 51 and can prevent adult fingers from entering the port of the paper inlet 51 close to the paper roller inside the paper pad machine body 5, physically ensuring that adult fingers cannot pass through the paper inlet 51 and touch the paper roller inside the paper pad machine body 5, achieving intrinsic safety. The size of the end 100 extending into the plane 200 can be appropriately adjusted according to the specific shape of the inner wall of the paper inlet 51.

[0079] Referring to Figure 6 , the raw paper is placed below the starting section 1, the width of the paper is greater than the maximum width of the starting section 1, the starting end of the paper is wound around the top of the starting section 1 and walks from the middle of the starting section 1, and the paper passes through the recess 31 above the starting section 1, the middle section 2, and the tail section 3 into the paper inlet 51 of the paper pad machine body 5. During the walking process, the path of the paper in the middle is different from the paths of the paper on both sides. The paper in the middle enters the paper inlet 51 of the paper pad machine body 5 from above the starting section 1, the middle section 2, and the tail section 3, and the paper on both sides enters the paper inlet 51 of the paper pad machine body 5 from the sides of the starting section 1, the middle section 2, and the tail section 3, thereby driving the paper on both sides to bend downward for pre-deformation and the sides of the paper to continue bending toward the middle to form a three-dimensional paper material with a smaller width and enter the paper inlet 51 of the paper pad machine body 5. Figure 12

[0080] Referring to Figure 3 , Figures 6 to 11 ​The mounting frame 4 comprises a horizontal part 41 and a connecting part 42, one end of the horizontal part 41 can be mounted on the bottom of the paper pad machine body 5 by screws, one end of the connecting part 42 is integrally connected with the other end of the horizontal part 41, and the other end of the connecting part 42 is fixed on the bottom of any one of the starting section 1, the middle section 2 and the tail section 3 by screws, specifically, the end of the connecting part 42 is fixed in the concave cavity on the bottom of the middle section 2 by screws, the mounting frame 4 is composed of the horizontal part 41 and the connecting part 42, so that the connecting part 42 is away from the plane 200 where the end with the largest longitudinal cross-sectional area of the paper inlet 51 is located, preventing the connecting part 42 from affecting the paper running and avoiding the deformed paper from winding on the connecting part 42.

[0081] With reference to Figure 11 In the embodiment, the connecting part 42 is arranged at an obtuse angle with the horizontal part 41, so that the part of the connecting part 42 fixed on the bottom of the middle section 2 is away from the plane 200 where the end with the largest longitudinal cross-sectional area of the paper inlet 51 is located as far as possible, preventing the connecting part 42 from affecting the paper running and avoiding the deformed paper from winding on the connecting part 42.

[0082] The mounting position of the mounting frame 4 on the bottom of the paper pad machine body 5 is adjustable, specifically, the mounting position of the horizontal part 41 of the mounting frame 4 on the bottom of the paper pad machine body 5 is adjustable, according to the specific shape of the inner wall of the paper inlet 51, the mounting position of the horizontal part 41 of the mounting frame 4 on the bottom of the paper pad machine body 5 can be adjusted, so as to adjust the distance between the end of the tail section 3 close to the paper inlet 51 of the paper pad machine body 5 and the inner wall of the paper inlet 51, so that the distance neither affects the paper entering the paper inlet 51 nor prevents the adult fingers from stretching into the port of the paper running rubber wheel close to the inside of the paper pad machine body 5, for example, a long circular mounting hole is formed on the horizontal part 41, the horizontal part 41 is fixed on the bottom of the paper pad machine body 5 by screws passing through the long circular mounting hole on the horizontal part 41, when it is needed to adjust the distance between the end of the tail section 3 close to the paper inlet 51 of the paper pad machine body 5 and the inner wall of the paper inlet 51, the screws on the horizontal part 41 are loosened, after the distance between the end of the tail section 3 and the inner wall of the paper inlet 51 is adjusted, the screws on the horizontal part 41 are tightened, which is very convenient.

[0083] With reference to Figures 6 to 12 In the paper pad machine, the raw paper 300 is placed below the starting section 1, the width of the paper is greater than the maximum width of the starting section 1, the starting end of the paper is wound over the top of the starting section 1, and the middle line of the paper runs along the middle of the starting section 1, the paper passes through the recess 31 on the top of the middle section 2 and the tail section 3 and enters the paper inlet 51 of the paper pad machine body 5 Figure 12The paper pad machine paper feeding guide device can adjust the contraction state of the paper entering the paper inlet 51 of the paper pad machine body 5 during the paper feeding process, accurately guide the shape and angle of the paper entering the paper inlet 51, correct and constrain the non-ideal feeding posture of the paper such as skew and bending in time, make the paper enter the paper inlet 51 of the paper pad machine body 5 in a stable and smooth posture, ensure the natural and low-resistance guiding and converging effect of the paper entering the paper inlet 51, and ensure the stability of the bulkiness, uniformity and buffering performance of the paper pad produced by the paper pad machine. Moreover, the end portion of the tail section 3 close to the paper inlet 51 is kept a certain distance from the paper inlet 51, which does not affect the paper entering the paper inlet 51 and can prevent adult fingers from entering the paper inlet 51. By controlling the distance, it can be physically ensured that adult fingers cannot pass through the paper inlet 51 and touch the paper feeding rubber wheel inside the paper pad machine body 5, achieving intrinsic safety. The paper pad machine paper feeding guide device can realize the safety protection and paper feeding guide functions of the paper inlet 51 of the paper pad machine body 5, integrate the two function modules of safety protection and paper feeding guide, save the installation space of the paper pad machine, and make the layout of the whole paper pad machine more reasonable.

[0084] The above only describes some embodiments of the present application. Those skilled in the art can make several modifications and improvements without departing from the inventive concept, and these all belong to the protection scope of the present application.

Claims

1. A paper feeding guide device for a paper pad machine with safety protection function, characterized in that, It includes a starting section, a middle section, and a tail section, which are arranged sequentially along the paper feeding direction of the paper feed inlet of the paper pad machine. The starting segment can cause the two sides of the paper to bend. The width of the first end of the middle section is not greater than the maximum width of the starting section, the width of the second end of the middle section is not less than the maximum width of the tail section, and the two sides of the middle section taper from the first end to the second end. The end of the tail section near the paper feed inlet of the paper pad machine is kept at a certain distance from the paper feed inlet of the paper pad machine to prevent fingers from being inserted into the paper feed inlet of the paper pad machine.

2. The paper feeding guide device for a paper pad machine according to claim 1, characterized in that, The starting section, middle section, and tail section are integrally formed and connected in sequence along the paper feeding direction of the paper feed inlet of the paper pad machine, and both sides of the starting section, middle section, and tail section are arc-shaped.

3. The paper feeding guide device for a paper pad machine according to claim 1, characterized in that, The starting section is a roller, and both ends of the roller are arc-shaped.

4. The paper feeding guide device for a paper pad machine according to claim 3, characterized in that, The middle section and the tail section are integrally formed and connected in sequence along the paper feeding direction of the paper feed inlet of the paper pad machine, and both sides of the middle section and the tail section are arc-shaped.

5. The paper feeding guide device for a paper pad machine according to claim 2, characterized in that, The middle positions on both sides of the middle section are bulging.

6. The paper feeding guide device for a paper pad machine according to claim 2, characterized in that, The top of the middle section is not lower than the top of the starting section and the tail section. The top of the middle section and the top of the starting section are connected by an arc-shaped surface transition. The top of the middle section and the top of the tail section are connected by an arc-shaped surface transition.

7. The paper feeding guide device for a paper pad machine according to claim 1, characterized in that, The top of the tail section has a recess in the middle.

8. The paper feeding guide device for a paper pad machine according to claim 1, characterized in that, The maximum width of the starting segment is less than the width of the paper processed by the paper pad machine.

9. The paper feeding guide device for a paper pad machine according to any one of claims 1 to 8, characterized in that, It also includes a mounting frame, one end of which is located on the bottom of any one of the starting section, the middle section, and the tail section, and the other end of which can be located on the paper pad machine.

10. A paper pad machine, characterized in that, The device includes a paper pad machine body and a paper feeding guide device as described in claim 9. The other end of the mounting frame is located on the bottom of the paper pad machine body. The end of the tail section near the paper inlet of the paper pad machine body is kept at a certain distance from the paper inlet of the paper pad machine body to prevent fingers from being inserted into the paper inlet of the paper pad machine body.

11. The paper pad machine according to claim 10, characterized in that, The paper inlet of the paper pad machine body is tapered in shape with a gradually decreasing longitudinal cross-sectional area.

12. The paper pad machine according to claim 10, characterized in that, The minimum distance between the end of the tail section near the paper feed inlet of the paper pad machine body and the inner wall of the paper feed inlet is less than or equal to 5cm.

13. The paper pad machine according to claim 10, characterized in that, The end of the tail section near the paper inlet of the paper pad machine body is suspended in the air.

14. The paper pad machine according to claim 11, characterized in that, The end of the tail section closest to the paper feed inlet of the paper pad machine body extends into the plane containing the end with the largest longitudinal cross-sectional area of ​​the paper feed inlet.

15. The paper pad machine according to claim 11, characterized in that, The mounting frame includes a horizontal section and a connecting section. One end of the horizontal section is located on the bottom of the paper pad machine body, and one end of the connecting section is located on the other end of the horizontal section. The other end of the connecting section is located on the bottom of any one of the starting section, the middle section, and the tail section.

16. The paper pad machine according to claim 15, characterized in that, The connecting part and the horizontal part are arranged at an obtuse angle so that the other end of the connecting part is far away from the plane where the end with the largest longitudinal cross-sectional area of ​​the paper feed is located.

17. The paper pad machine according to claim 10, characterized in that, The mounting bracket is adjustable in position on the bottom of the paper pad machine body.

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