A dynamic material pulling sheet mechanism and a feeding device

Abstract

The utility model provides a kind of dynamic material pulling piece mechanism and feeding device, wherein feeding device includes dynamic material pulling piece mechanism, material box, first driving part and push arm.Dynamic material pulling piece mechanism contains conveying device, rolling element and power component, conveying device is used to convey material piece;Rolling element is set on conveying device top and is relatively arranged, forms the conveying channel for material piece to pass through, ensures that material piece moves along preset path stably.Power component is movably connected with rolling element, and can exert force flexibly according to material piece transmission stage.Material box is set on the upstream of conveying device, and material piece is vertically stacked inside, so that material piece can directly enter transmission process after being pushed, and horizontal space is saved to adapt to narrow environment.First driving part is connected with material box and drives vertical movement of material box, can adjust the height of material piece, so that it is matched with the pushing height of push arm, and prevents pushing dislocation.Push arm is arranged on the side of material box away from conveying device, and material piece is pushed to conveying device one by one, and force is exerted from rear end to prevent material piece from tilting.

Description

Technical Field

[0001] This utility model relates to the field of automated conveying equipment technology, and in particular to a dynamic material pulling mechanism and feeding device. Background Technology

[0002] In automated production processes for sheet metal (especially sheets with chips that require subsequent encapsulation), the sheet feeding mechanism is the core component for continuous sheet transfer. Traditional sheet feeding mechanisms often use a structure where a rolling element with fixed pressure is used in conjunction with the conveying device, and the pressure of the rolling element cannot be dynamically adjusted according to the stage of sheet transfer.

[0003] When the sheet enters the conveying channel, if the initial pressure of the rolling element is too high, it can easily cause the sheet edge to jam, wrinkle, or even fail to enter the channel due to excessive resistance. If the pressure is too low, the sheet is prone to relative sliding with the conveying device during the conveying process, resulting in a shift in the transmission position and affecting the accuracy of subsequent processing. Therefore, a dynamic sheet pulling mechanism and a feeding device are needed to solve the above technical problems. Utility Model Content

[0004] This utility model provides a dynamic material feeding mechanism and a feeding device, which realizes dynamic adjustment of the material feeding pressure and improves feeding stability and versatility.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a dynamic material pulling mechanism, which includes: Conveying device, used to convey material sheets; A rolling element is disposed above the conveying device and opposite to the conveying device to form a conveying channel through which the feed sheet passes; and A power component, wherein the actuator end of the power component is movably connected to the rolling element, and is used to selectively apply force to the rolling element.

[0006] The dynamic material pulling mechanism also includes: A connecting shaft, one end of which is rotatably connected to the center of the rolling element, and the actuating end of the power component is movably connected to the connecting shaft; and A counterweight is connected to the other end of the connecting shaft, and the counterweight increases the downward weight of the rolling element itself.

[0007] In this invention, the power component cooperates with the rolling element to selectively apply a downward force to the rolling element; When there are no material pieces on the conveying device, the piston rod of the power component is separated from the shaft of the rolling element, and the power component does not apply any force to the rolling element; When the sheet moves toward the conveying channel and comes into contact with the rolling element, the sheet can push the rolling element to move upward automatically, so that the sheet can smoothly enter between the rolling element and the conveying device; When the front end of the sheet enters the conveying channel between the rolling element and the conveying device, the power component applies a downward force to the rolling element, pressing the sheet onto the conveying device, so that the sheet is conveyed synchronously with the conveying device, thereby pulling the sheet completely onto the conveying device.

[0008] In this invention, the counterweight is detachably connected to the connecting shaft to accommodate sheets of different thicknesses or materials.

[0009] This utility model also provides a feeding device, which includes: The dynamic feeding mechanism described above includes: Conveying device, used to convey material sheets; A rolling element is disposed above the conveying device and opposite to the conveying device to form a conveying channel through which the feed sheet passes; and A power component, wherein the actuator end of the power component is movably connected to the rolling element, and is used to selectively apply force to the rolling element; A material box is located upstream in the conveying direction of the conveying device, and material sheets are vertically stacked inside the material box; A first driving component is connected to the material box, and the first driving component drives the material box to move vertically; and A pusher arm is positioned on the side of the material box away from the conveying device, and the pusher arm pushes the material pieces in the material box one by one to the conveying device.

[0010] In this utility model, the first driving component includes: The lifting assembly is located on the upstream side of the conveying direction of the conveying device. A support plate is connected to the lifting assembly. The material box is placed on the support plate, and the lifting assembly drives the support plate to move the material box up and down.

[0011] In this invention, the conveying device conveys the material sheet in a front-to-back direction, and the feeding device further includes a second driving member. The second driving member is connected to the first driving member, and the second driving member drives the first driving member to move the material box in a left-to-right direction.

[0012] In this invention, the first driving component further includes a positioning block located above the support plate, and the positioning block is disposed opposite to the support plate for clamping the material box; and A positioning cylinder is connected to the support plate, and the positioning block is connected to the actuator of the positioning cylinder. The positioning cylinder drives the positioning block to move relative to the support plate.

[0013] In this utility model, the push arm includes: The third driving component is located at the end of the material box furthest from the conveying device; and The pusher plate is connected to the actuator of the third drive component, and pushes the material pieces in the material box to the conveying device.

[0014] In this utility model, the push arm further includes: The third driving component is connected to the base; A guide rail is mounted on the base, and the straight line containing the long side of the guide rail is parallel to the straight line containing the long side of the pushing trajectory of the material sheet; and A connecting plate connects the actuator end of the third driving component and the push plate, and the connecting plate is slidably connected to the guide rail.

[0015] Compared with the prior art, the advantages of this utility model are as follows: The dynamic material pulling mechanism of this utility model effectively solves the problem that the pressure of the rolling parts in traditional mechanisms cannot be dynamically adjusted through the coordinated cooperation of the conveying device, rolling parts and power components. Its core advantage is that the power component can selectively apply force to the rolling parts, avoiding additional pressure obstacles when the material enters the conveying channel, ensuring that the material enters smoothly; after the front end of the material enters the conveying channel, the power component applies force to make the rolling parts press the material onto the conveying device, thereby pulling the material to be completely transferred to the conveying device, greatly reducing the relative slippage between the material and the conveying device, improving the stability and accuracy of transmission, and adapting to the needs of different transmission stages, avoiding the jamming or slippage problems caused by fixed pressure design; using this mechanism, the push arm only needs to push the front end of the material onto the conveying device, effectively reducing the length of the push arm and the pushing stroke, reducing the space required for the movement of the push arm, realizing the effective transmission of the material in a smaller space, and making the entire equipment structure compact.

[0016] The feeding device using this dynamic sheet-pulling mechanism further optimizes the overall feeding and conveying process through the combined design of the material box, the first drive component, and the push arm. The vertically stacked material box saves space, and the first drive component drives the material box to move vertically, which can precisely adjust the docking position between the material and the conveying device, avoiding the transmission deviation caused by docking misalignment in traditional feeding devices. The push arm can push the material in the material box one by one to the conveying device, achieving orderly feeding. It forms a highly efficient linkage with the dynamic sheet-pulling mechanism, which not only ensures the continuity of material feeding, but also provides precise material positioning for subsequent processing (such as chip encapsulation) through the stable transmission of the sheet-pulling mechanism, significantly improving the overall automated production efficiency and reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of this utility model.

[0018] Figure 1 This is a schematic diagram of the overall structure of the feeding device according to a preferred embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the dynamic material pulling mechanism of a preferred embodiment of the present invention.

[0020] Figure 3 This is a cross-sectional view of the overall structure of the feeding device according to a preferred embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the first driving component and the push arm connection structure of a preferred embodiment of the present invention.

[0022] Reference numerals: 11. Dynamic material pulling mechanism; 111. Conveying device; 112. Rolling element; 113. Power component; 1131. Piston rod; 114. Connecting shaft; 115. Counterweight; 12. Material box; 13. First driving component; 131. Lifting assembly; 132. Support plate; 133. Positioning block; 134. Positioning cylinder; 14. Push arm; 141. Third driving component; 142. Push plate; 143. Base; 144. Guide rail; 145. Connecting rod; 15. Second driving component; 16. Material sheet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] In the diagram, units with similar structures are represented by the same labels.

[0025] The terms "first" and "second" in this utility model are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as a restriction on the order of events.

[0026] Please refer to Figure 1 , Figure 2 and Figure 3 ,in Figure 1 This is a schematic diagram of the overall structure of the feeding device according to a preferred embodiment of the present invention. Figure 2 This is a schematic diagram of the dynamic material pulling mechanism of a preferred embodiment of the present invention. Figure 3 This is a cross-sectional view of the overall structure of the feeding device according to a preferred embodiment of the present invention.

[0027] The following is a preferred embodiment of a dynamic material pulling mechanism and feeding device provided by this utility model that can solve the above technical problems.

[0028] A preferred embodiment of the dynamic material pulling mechanism and feeding device provided by this utility model is as follows: A dynamic material pulling mechanism and feeding device, wherein the feeding device includes a dynamic material pulling mechanism 11, a material box 12, a first driving member 13, and a push arm 14. The dynamic material pulling mechanism 11 includes a conveying device 111, a rolling member 112, and a power member 113; wherein, the conveying device 111 is used to convey material pieces 16; the rolling member 112 is disposed above the conveying device 111, and the rolling member 112 is disposed opposite to the conveying device 111 to form a conveying channel for the material pieces 16 to pass through; through the relative arrangement of the rolling member 112 and the conveying device 111, a dedicated conveying channel is constructed, limiting the transmission trajectory of the material pieces 16, preventing the material pieces 16 from shifting laterally or falling during transmission, and providing a structural basis for subsequent pressure adjustment, ensuring that the material pieces 16 always move stably along the preset path. The power component 113 is movably connected to the rolling element 112. The power component 113 is used to selectively apply force to the rolling element 112. The power component 113 can flexibly apply force according to the material sheet 16 transmission stage to solve the contradiction between the material sheet 16's "entry obstruction" and "transmission slippage". When the material sheet 16 enters, no force is applied to reduce obstruction, and when it is conveyed, force is applied to enhance the fit and improve the adaptability of the mechanism to different transmission scenarios.

[0029] The material box 12 is positioned upstream of the conveying device 111 in the conveying direction, and material pieces 16 are vertically stacked inside the material box 12. The material box 12's upstream position ensures that the pushed material pieces 16 can directly enter the conveying process, reducing intermediate transfer steps. The vertical stacking method significantly saves lateral space, adapting to confined working environments, and facilitates the orderly pushing of material pieces 16 layer by layer, avoiding stacking chaos. The first driving component 13 is connected to the material box 12, driving the material box 12 to move vertically. This vertical driving allows for flexible adjustment of the height of the material pieces 16 inside the material box 12, ensuring that the height of the last material piece 16 always matches the pushing height of the pusher arm 14, preventing pushing misalignment caused by a decrease in the stacking height of the material pieces 16, and ensuring the accuracy and continuity of the pushing action. The pusher arm 14 is positioned on the side of the material box 12 away from the conveying device 111, pushing the material pieces 16 inside the material box 12 one by one into the conveying device 111. The push arm 14 is positioned at the end of the material box 12 away from the conveying device 111. It can exert force from the rear end of the material piece 16 to achieve smooth pushing and avoid tilting of the material piece 16 caused by pushing from the side. The "pushing one by one" mode ensures that the material pieces 16 do not overlap when entering the conveying device 111, preventing blockage of the subsequent conveying channel and ensuring a stable feeding rhythm.

[0030] The dynamic material pulling mechanism 11 in this embodiment will be described in detail below: Combination Figure 2 The dynamic material pulling mechanism 11 of this embodiment also includes a connecting shaft 114 and a counterweight 115. One end of the connecting shaft 114 is rotatably connected to the center of the rolling element 112, while the actuating end of the power component 113 is movably connected to the connecting shaft 114. The counterweight 115 is connected to the other end of the connecting shaft 114, which can increase the downward weight of the rolling element 112 itself. In practical applications, the power component 113 can directly apply force to the rolling element 112, while the addition of the connecting shaft 114 can achieve stable assembly of the rolling element 112 and the counterweight 115. The counterweight 115 provides basic downward pressure for the rolling element 112, and can maintain the initial contact state between the material sheet 16 and the conveying device 111 without the power component 113 continuously outputting force, effectively reducing the energy consumption of the power component 113. The pressure also provides a stable initial reference for subsequent pressure fine-tuning through the power component 113, avoiding damage to the material sheet 16 due to sudden pressure changes and ensuring the integrity of the material sheet 16 during the transmission process.

[0031] Furthermore, in this invention, the counterweight 115 is detachably connected to the connecting shaft 114 to accommodate sheet metal 16 of different thicknesses or materials. The detachable design allows for flexible weight replacement of the counterweight 115. For thin, easily deformable sheet metal 16, a lighter counterweight can be used; for thick sheet metal 16 requiring high pressure, a heavier counterweight can be used. This breaks the limitations of traditional fixed counterweights, significantly improving the mechanism's versatility for sheet metal 16 of different specifications and reducing equipment replacement costs.

[0032] In this invention, the power component 113 cooperates with the rolling element 112 to selectively apply a downward force to the rolling element 112.

[0033] When there is no material sheet 16 on the conveying device 111, the piston rod 1131 of the power component 113 is separated from the shaft of the rolling element 112, and the power component 113 does not apply any force to the rolling element 112. In the absence of material, the power component 113 does not apply force, which avoids the rolling element 112 from being subjected to pressure for a long time, which may cause deformation of its own structure or wear of the conveying device 111, thus extending the service life of the components and reducing energy consumption when there is no material, which meets the energy-saving requirements.

[0034] As the material piece 16 moves from the material box to the conveying channel between the rolling element 112 and the conveying device 111 under the action of the push arm 14, the power component 113 does not apply force to the rolling element 112 to avoid obstructing the material piece 16 from entering the conveying channel.

[0035] When the sheet 16 moves toward the conveying channel and contacts the rolling element 112, the sheet 16 can push the rolling element 112 to move upward automatically, so that the sheet 16 can smoothly enter between the rolling element 112 and the conveying device 111; the rolling element 112 can move upward automatically as the sheet 16 contacts it, eliminating the hard obstruction of the sheet 16 entering the channel, avoiding the problems of the sheet 16 getting stuck and wrinkled caused by the traditional fixed rolling element 112, ensuring the smoothness of the sheet 16 entering the channel, and reducing the damage rate of the sheet 16.

[0036] When the front end of the sheet 16 enters the conveying channel between the rolling element 112 and the conveying device 111, the power unit 113 applies a downward force to the rolling element 112, pressing the sheet 16 firmly onto the conveying device 111. This allows the sheet 16 to be conveyed synchronously with the conveying device 111, thus pulling the sheet completely onto the conveying device. After the sheet 16 is in place, the power unit 113 applies force promptly, pressing the sheet 16 tightly onto the conveying device 111 through the rolling element 112. This completely solves the problem of relative slippage when the sheet first contacts the conveying device, ensuring that the conveying speed of the sheet 16 is consistent with that of the conveying device 111, improving conveying accuracy, and providing a guarantee for the positioning accuracy of subsequent processing. The pusher arm 14 only needs to push a portion of the front end of the material sheet onto the conveying device, positioning it below the rolling element. Under the action of the power component, the rolling element presses the front end of the material sheet between the rolling element and the conveying device. As the conveying device continues to move, it can pull the material sheet completely onto the conveying device. Therefore, the length of the pusher arm and the pushing stroke can be effectively reduced, the space required for the movement of the pusher arm can be reduced, the material sheet can be effectively conveyed within a smaller space, and the entire equipment structure can be made compact.

[0037] Due to limited space, the adaptable push arm 14 is relatively short, only able to push one end of the material sheet 16 onto the conveyor 111. At this point, the contact area between the material sheet 16 and the conveyor 111 is small, making it prone to slippage and resulting in unsuccessful feeding. Therefore, the power component 113 does not activate until the front end of the material sheet 16 just enters below the rolling element 112. Subsequently, the material sheet 16 needs to pass under the rolling element 112 under the force of the power component 113 to achieve the effect of pulling the rear half of the material sheet 16 onto the conveyor 111. After the material sheet 16 has completely passed under the rolling element 112 and is fully positioned on the conveyor 111, the power component 113 releases its force, and the material sheet 16 is then transported by the conveyor 111.

[0038] The other structures of the feeding device in this embodiment are described in detail below: Combination Figure 3 and Figure 4In this invention, the first driving component 13 includes a lifting assembly 131 and a support plate 132. The lifting assembly 131 is located on the upstream side of the conveying device 111 in the conveying direction. The support plate 132 is connected to the lifting assembly 131, and the material box 12 is placed on the support plate 132. The lifting assembly 131 drives the support plate 132 to move the material box 12 up and down. The support plate 132 provides a stable bearing base for the material box 12, preventing the material box 12 from swaying during lifting. The lifting assembly 131 indirectly drives the material box 12 to move by driving the support plate 132, resulting in smoother transmission and precise control of the lifting height of the material box 12, further improving the alignment accuracy of the material sheet 16 with the push arm 14 and the conveying device 111.

[0039] In this invention, the first driving component 13 further includes a positioning block 133 and a positioning cylinder 134. The positioning block 133 is located above the support plate 132 and is positioned opposite to the support plate 132, for clamping the material box 12. The positioning cylinder 134 is connected to the support plate 132, and the positioning block 133 is connected to the actuating end of the positioning cylinder 134. The positioning cylinder 134 drives the positioning block 133 to move relative to the support plate 132. The relative clamping structure between the positioning block 133 and the support plate 132 can fix the material box 12 on the support plate 132, preventing the material box 12 from shifting or tipping over during lifting or moving left and right. The positioning cylinder 134 ensures that the clamping force is controllable, ensuring the stability of the material box 12 while avoiding excessive clamping that could cause deformation of the material box 12, and is suitable for material boxes 12 made of different materials.

[0040] In this invention, the push arm 14 includes a third drive member 141 and a push plate 142. The third drive member 141 is located at the end of the material box 12 away from the conveying device 111. The push plate 142 is connected to the actuating end of the third drive member 141, and pushes the material sheet 16 in the material box 12 to the conveying device 111. The push plate 142 increases the contact area with the material sheet 16, which, compared with the traditional rod-shaped push head, can avoid excessive local force that could cause deformation of the material sheet 16. The third drive member 141 provides stable power to the push plate 142, ensuring uniform pushing force and allowing the material sheet 16 to enter the conveying device 111 at a uniform speed, reducing the positional deviation of the material sheet 16 caused by sudden changes in pushing speed.

[0041] In this invention, the push arm 14 also includes a base 143 and a guide rail 144, with the third drive component 141 connected to the base 143. The guide rail 144 is mounted on the base 143, and the straight line of the long side of the guide rail 144 is parallel to the straight line of the long side of the pushing trajectory of the material sheet 16. A connecting plate connects the execution end of the third drive component 141 and the push plate 142, and the connecting plate is slidably connected to the guide rail 144. The base 143 provides fixed support for each component of the push arm 14, improving the overall structural stability. The guide rail 144 limits the sliding trajectory of the connecting plate, ensuring that the push plate 142 moves accurately along the pushing trajectory of the material sheet 16, and preventing the push plate 142 from deviating during the pushing process. The connecting plate achieves a stable connection between the drive end and the execution end, reducing power transmission loss and ensuring the smoothness and accuracy of the pushing action.

[0042] Combination Figure 4 In this invention, the conveying device 111 conveys the material pieces 16 in a front-to-back direction. The feeding device also includes a second driving member 15, which is connected to the first driving member 13. The second driving member 15 drives the first driving member 13 to move the material box 12 in a left-to-right direction. The second driving member 15 enables the left-to-right adjustment of the material box 12, and together with the vertical adjustment of the lifting component 131, forms a two-dimensional position adjustment of "up and down and left and right". This can cope with the positional deviation of the conveying device 111 or the pushing requirements of material pieces 16 of different specifications, greatly improving the spatial adaptability of the feeding device.

[0043] The working principle of this utility model: I. Working process of dynamic material pulling mechanism 11 1. Initial state: When there is no material sheet 16 on the conveying device 111, the piston rod 1131 of the power component 113 is separated from the shaft of the rolling element 112. The power component 113 does not apply any force to the rolling element 112. The rolling element 112 maintains its initial position only by its own weight and the gravity of the counterweight 115.

[0044] 2. Material sheet 16 entry stage: When the material sheet 16 moves into the conveying channel between the rolling element 112 and the conveying device 111 and contacts the rolling element 112, the material sheet 16 can push the rolling element 112 to move automatically upward. At this time, the power component 113 still does not apply force to avoid hindering the material sheet 16 from entering and to ensure that the material sheet 16 enters the conveying channel smoothly.

[0045] 3. Stable conveying stage: When the front end of the material piece 16 enters the conveying channel, the power component 113 applies a downward force to the rolling element 112. Combined with the weight of the rolling element 112 itself and the gravity of the counterweight 115, the material piece 16 is tightly pressed onto the conveying device 111, so that the material piece 16 can gradually pass under the rolling element 112 and move synchronously with the conveying device 111 to achieve stable transmission. After the material piece 16 has completely passed the rolling element, the material piece 16 is conveyed under the action of the conveying device.

[0046] 4. Pressure adaptation and adjustment: By replacing the detachable counterweights 115 of different weights, the initial pressure of the rolling element 112 on the material sheet 16 can be adjusted to adapt to the material sheet 16 of different thicknesses or materials, so as to avoid the material sheet 16 being deformed due to excessive pressure or the conveying stability being affected by insufficient pressure.

[0047] II. Cooperative working process of the feeding device 1. Material box 12 feeding preparation: The material sheet 16 is stacked vertically in the material box 12. The positioning cylinder 134 of the first driving component 13 drives the positioning block 133 to move down, which cooperates with the support plate 132 to clamp and fix the material box 12, ensuring that the position of the material box 12 is stable during the lifting process.

[0048] 2. Adjustment of the position of the material box 12: The lifting component 131 of the first driving component 13 drives the support plate 132 to move the material box 12 in the vertical direction, so that the uppermost material piece 16 in the material box 12 matches the pushing height of the push arm 14; if it is necessary to adjust the lateral position of the material piece 16, the second driving component 15 can drive the first driving component 13 to move the material box 12 in the left and right directions to achieve precise alignment.

[0049] 3. Material piece 16 pushing action: The third driving component 141 of the push arm 14 drives the push plate 142 to move. Under the guidance of the connecting plate and the guide rail 144, the push plate 142 (slides smoothly along the material piece 16 pushing trajectory) pushes the uppermost material piece 16 in the material box 12 one by one to the upstream end of the conveying device 111. After the pushing is completed, the push plate 142 resets and waits for the next pushing.

[0050] 4. Feeding and conveying linkage: The material piece 16 pushed to the conveying device 111 moves along the conveying device 111 to the conveying channel of the dynamic material pulling mechanism 11. Subsequently, it completes the entry, pressing and stable conveying according to the working process of the dynamic material pulling mechanism 11, and finally realizes the full automation of the process from feeding the material box 12 to the transfer of the material piece 16.

[0051] This completes the working process of the dynamic material pulling mechanism and feeding device of this preferred embodiment.

[0052] In a specific embodiment of the dynamic material pulling mechanism of this utility model, the conveying device 111 can flexibly select a conveyor belt (suitable for the smooth conveying of flexible film sheets) or a roller conveying structure (such as multiple sets of parallel rollers made of metal, suitable for rigid metal sheets or thick plates, to avoid bending deformation during the conveying process) according to the actual material conveying requirements.

[0053] In addition to conventional pressure rollers, the rolling element 112 can also be a smooth-surfaced roller or a cylindrical bearing. The actuating end of the power unit 113 is movably connected to the rolling element 112 and is used to selectively apply axial clamping force to the rolling element according to the thickness and material of the sheet. In this embodiment, the power unit 113 and other drive components are not limited to cylinders, and can also be linear modules driven by electric actuators, hydraulic cylinders or servo motors.

[0054] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A dynamic sheet pulling mechanism, characterized in that, include: Conveying device, used to convey material sheets; A rolling element is disposed above the conveying device and is disposed opposite to the conveying device to form a conveying channel through which the feed sheet passes; as well as A power component, wherein the actuator of the power component is movably connected to the rolling element, and the power component is used to selectively apply force to the rolling element.

2. The dynamic material pulling mechanism according to claim 1, characterized in that, Also includes: A connecting shaft is rotatably connected at one end to the center of the rolling element, and the actuating end of the power component is movably connected to the connecting shaft; as well as A counterweight is connected to the other end of the connecting shaft, and the counterweight increases the downward weight of the rolling element itself.

3. The dynamic material pulling mechanism according to claim 1, characterized in that, The power component cooperates with the rolling element to selectively apply a downward force to the rolling element; When there are no material pieces on the conveying device, the piston rod of the power component is separated from the shaft of the rolling element, and the power component does not apply any force to the rolling element; When the sheet moves toward the conveying channel and comes into contact with the rolling element, the sheet can push the rolling element to move upward automatically, so that the sheet can smoothly enter between the rolling element and the conveying device; When the front end of the sheet enters the conveying channel between the rolling element and the conveying device, the power component applies a downward force to the rolling element, pressing the sheet onto the conveying device, so that the sheet is conveyed synchronously with the conveying device, thereby pulling the sheet completely onto the conveying device.

4. The dynamic material pulling mechanism according to claim 2, characterized in that, The counterweight is detachably connected to the connecting shaft to accommodate sheets of different thicknesses or materials.

5. A feeding device, characterized in that, include: The dynamic material pulling mechanism as described in any one of claims 1-4 comprises: Conveying device, used to convey material sheets; A rolling element is disposed above the conveying device and opposite to the conveying device to form a conveying channel through which the feed sheet passes; and A power component, wherein the actuator end of the power component is movably connected to the rolling element, and is used to selectively apply force to the rolling element; A material box is located upstream in the conveying direction of the conveying device, and material sheets are vertically stacked inside the material box; A first driving component is connected to the material box, and the first driving component drives the material box to move vertically; and A pusher arm is positioned on the side of the material box away from the conveying device, and the pusher arm pushes the material pieces in the material box one by one to the conveying device.

6. The feeding device according to claim 5, characterized in that, The first driving element includes: The lifting assembly is located on the upstream side of the conveying direction of the conveying device. A support plate is connected to the lifting assembly. The material box is placed on the support plate, and the lifting assembly drives the support plate to move the material box up and down.

7. The feeding device according to claim 5, characterized in that, The conveying device conveys the material sheet in a front-to-back direction. The feeding device also includes a second driving component, which is connected to the first driving component. The second driving component drives the first driving component to move the material box in a left-to-right direction.

8. The feeding device according to claim 6, characterized in that, The first driving component further includes a positioning block located above the support plate, and the positioning block is disposed opposite to the support plate for clamping the material box; and A positioning cylinder is connected to the support plate, and the positioning block is connected to the actuator of the positioning cylinder. The positioning cylinder drives the positioning block to move relative to the support plate.

9. The feeding device according to claim 5, characterized in that, The push arm includes: The third driving component is located at the end of the material box furthest from the conveying device; and The pusher plate is connected to the actuator of the third drive component, and pushes the material pieces in the material box to the conveying device.

10. The feeding device according to claim 9, characterized in that, The push arm also includes: The third driving component is connected to the base; A guide rail is mounted on the base, and the straight line containing the long side of the guide rail is parallel to the straight line containing the long side of the pushing trajectory of the material sheet; and A connecting plate connects the actuator end of the third driving component and the push plate, and the connecting plate is slidably connected to the guide rail.

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