Separating and folding claw suitable for folding machine and separating and folding mechanism of separating and folding claw

Abstract

The utility model discloses a separating and folding claw suitable for a folding machine and a separating and folding mechanism of the separating and folding claw, and relates to the technical field of paper folding machinery. The separating and stacking mechanism comprises a separating and stacking claw and a separating and stacking mechanism, the separating and stacking claw comprises a connecting part connected to the separating and stacking claw mounting frame and a paper receiving part entering the paper receiving position to receive paper, and the paper receiving part of the separating and stacking claw protrudes to form an arc-shaped flange; and the separating and stacking claw mounting frame reciprocates in the direction of entering and exiting from the paper receiving position along the groove type tracks of the first cam groove and the second cam groove. According to the technical scheme, the problem of deviation of paper stacks can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper folding machinery, in particular to a folding claw suitable for a folding machine and a folding mechanism thereof. Background Art

[0002] The folding machine for generating folded paper has two folding rollers parallel to each other, and a paper support for supporting the paper stack is provided directly below the roller gap between the two folding rollers. When the folding machine is working, the continuous paper passes through the roller gap between the two folding rollers, and the two synchronously rotating folding rollers cut and fold the continuous paper into sheets of paper, and the formed paper falls and is stacked on the paper support.

[0003] See the instruction manual Figure 1 and Figure 2 As shown, in order to separate the paper materials falling on the paper support into independent piles whenever a certain number of sheets are stacked, a stacking claw is provided below the folding roller in a waiting position. Whenever the paper materials are stacked on the paper support to a predetermined number of sheets, the stacking claw enters the paper receiving position, that is, the stacking claw is inserted directly above the paper support, so that the stacking claw is inserted into the folded paper materials falling from the folding roller, that is, the stacking claw reaches the paper receiving position, so that the subsequent paper materials falling from the folding roller are temporarily stacked on the stacking claw, and a pile of paper materials is separated on the paper support. When other mechanisms in the folding machine remove the entire pile of paper materials on the paper support, the paper support returns to its original position, and the stacking claw withdraws from the paper receiving position, so that the paper materials previously stacked on the stacking claw are transferred to the paper support, and the subsequent paper materials falling from the folding roller continue to be stacked on the paper support until a new pile of paper materials is formed. In this way, the stacking claws repeatedly enter and exit the paper receiving position, so that piles of independent paper can be formed on the paper supporting member.

[0004] However, when the stacking claws are inserted into the paper receiving position for temporary stacking, the space above the stacking claws is relatively large, and the paper sheets cannot be neatly stacked together in the initial stage of receiving the paper stacks. Utility Model Content

[0005] Aiming at the above-mentioned disadvantage that the stacking claws of the prior art cannot neatly stack the paper sheets at the beginning of receiving the paper pile, the utility model provides a stacking claw and a stacking mechanism suitable for a folding machine. The technical solution in the utility model can solve the problem of paper sheet pile deviation.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a stacking claw suitable for a folding machine, the stacking claw comprising a connecting portion for fixedly connecting to a stacking claw mounting frame, a paper receiving portion for extending into a paper receiving position to receive paper under the drive of the stacking claw mounting frame, the middle portion of the paper receiving portion being arched upward to a set arc to form an arc-shaped flange protruding upward.

[0007] Furthermore, an inclined transition portion is provided between the paper receiving portion and the connecting portion.

[0008] The utility model also provides a stacking mechanism suitable for a folding machine, comprising the above-mentioned stacking claws, and also comprising a lifting frame, a stacking claw mounting frame and a stacking drive mechanism, wherein the lifting frame is slidably mounted on the frame of the folding machine; the stacking drive mechanism is mounted on the lifting frame, and the stacking claw mounting frame is slidably mounted on the lifting frame, a plurality of stacking claws are provided on one side of the mounting frame, and the stacking drive mechanism is connected to the stacking claw mounting frame and drives the stacking claws to move back and forth in the direction of entering and exiting the paper receiving position.

[0009] Furthermore, a guide plate is provided on the lifting frame, and a first cam groove and a second cam groove are formed on the guide plate, and a first cam bearing follower and a second cam bearing follower are provided on the stacking claw mounting frame, the first cam bearing follower is slidably assembled in the first cam groove, and the second cam bearing follower is slidably assembled in the second cam groove, and in the process of the stacking claw moving toward the direction of entering the paper receiving position, the first cam bearing follower moves obliquely upward along the first cam groove, and the second cam bearing follower moves obliquely upward along the second cam groove; the apex of the second cam groove is lower than the apex of the first cam groove; when the second cam bearing follower reaches the apex of the second cam groove, the first cam bearing follower continues to move along the first cam groove, so that the stacking claw mounting frame rotates a set angle with the axis of the second cam bearing follower as the axis.

[0010] Furthermore, in the process of the stacking claw moving toward the direction of entering the paper receiving position, the first cam bearing follower deflects upward with the axis of the second cam bearing follower as the axis, and when the second cam bearing follower reaches the apex of the second cam groove, it continues to deflect upward around the second cam bearing follower by a set angle.

[0011] Furthermore, guide plates are provided on the inner sides of both ends of the lifting frame.

[0012] Furthermore, the stacking drive mechanism includes a stacking drive motor, a stacking swing arm and a stacking connecting rod. The stacking drive motor is fixedly mounted on the lifting frame. The stacking drive motor drives the stacking swing arm to swing. The swinging end of the stacking swing arm is connected to one end of the stacking connecting rod, and the other end of the stacking connecting rod is connected to the stacking claw mounting frame.

[0013] Furthermore, the stacking drive mechanism also includes a stacking drive shaft, which is installed on the lifting frame through a bearing mounting seat, the stacking drive shaft is connected to the stacking drive motor, and a plurality of stacking swing arms are fixedly assembled on the stacking drive shaft. The stacking drive motor drives the stacking drive shaft to rotate, and the stacking drive shaft drives the plurality of stacking swing arms to swing synchronously.

[0014] In summary, the utility model has the following beneficial effects:

[0015] (1) Since the space above the stacking claw is large, there is a gap at the beginning of stacking, which makes it impossible for the paper to be stacked tightly. The device solves the problem that the paper cannot be stacked neatly at the beginning of the paper receiving position by setting an arc-shaped flange on the stacking claw. The arc-shaped flange of the stacking claw enables the stacking claw to reduce the drop of the paper when entering the paper receiving position to achieve tight stacking, thereby avoiding deviations caused in the early stage of stacking, thereby solving the irregular or uneven stacking phenomenon that occurs during the stacking process of paper sheets, and making the stacking flat and aligned. In this way, it is ensured that the paper can be better aligned and stacked in the early stage of stacking.

[0016] (2) The structure of the first cam groove and the second cam groove is used to make the motion trajectory of the stacking claw involved in stacking similar to a parabolic motion trajectory. On the one hand, it avoids the folding roller. On the other hand, the parabolic motion trajectory of the stacking claw avoids the top layer of paper material that is arched on the paper stack to avoid interference with it. Thirdly, the stacking claw has a downward pressing motion trajectory when entering the paper receiving position, which can flatten the arched paper material on the top layer of the paper stack to ensure the flatness of the stacked paper stack. The utility model makes good use of the limited gap space, avoids the upper folding roller and the bottom knife on the folding roller, and does not interfere with the product below. The utility model ensures the smoothness of machine production and the high quality requirements of the product.

[0017] (3) The structure of the stacking claw is changed. The existing stacking claw generally adopts a right-angle structure, while the paper receiving part and the connecting part in the stacking claw of the present application are connected by a transition part. The setting of the transition part shortens the vertical height of the stacking claw, so that the movement trajectory of the paper receiving part can be more advantageously controlled within a limited height and width. At the same time, the front end of the paper receiving part is thinner to avoid interference. Compared with the existing stacking claw structure, the stacking claw of the present application has a smaller vertical displacement when entering the paper receiving position, which is more conducive to utilization in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the stacking claws waiting below the bed knife in the prior art.

[0019] Figure 2 The cross section diagram of the stacking process of the stacking mechanism Figure 1 .

[0020] Figure 3 The cross section diagram of the stacking process of the stacking mechanism Figure 2 .

[0021] Figure 4 The cross section diagram of the stacking process of the stacking mechanism Figure 3 .

[0022] Figure 5The figure is a comparison between the paper receiving part of the prior art stacking claw and the stacking claw of the present invention.

[0023] The reference numerals are described as follows:

[0024] 3. Stacking claw; 31. Arc-shaped flange; 4. Stacking claw mounting frame 6. Paper receiving position; 7. Guide plate; 8. First cam groove; 9. Second cam groove; 10. First cam bearing follower; 11. Second cam bearing follower; 12. Connecting part; 13. Paper receiving part; 14. Transition part; DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the embodiments.

[0026] Example 1

[0027] As a preferred embodiment of the present invention, refer to the attached Figure 3 As shown, this embodiment discloses a stacking claw suitable for a folding machine, wherein the stacking claw 3 includes a connecting portion 12 for fixedly connecting to a stacking claw mounting frame 4, and a paper receiving portion 13 for extending into a paper receiving position 6 to receive paper under the drive of the stacking claw mounting frame 4, wherein the middle portion of the paper receiving portion 13 is arched upward to a set arc to form an arc-shaped flange 31 protruding upward.

[0028] A plurality of stacking claws 3 are mounted on a stacking claw 3 mechanism, and the stacking mechanism is mounted on a folding machine.

[0029] Refer to the instruction manual Figure 1 After the paper is pushed off the folding roller by the fork and stacked on the paper pile, the middle part of the uppermost layer of the paper will be arched to a certain height. If the existing stacking claw 3 is translated and inserted into the stacking action, it reaches the designated position to start receiving the paper pile. At this time, the space above the stacking claw 3 is relatively large. At the beginning stage of receiving the paper pile, the first few sheets of paper cannot be neatly stacked together. At the same time, it is necessary to avoid interference with the folding rod, and the stacking claw 3 cannot be moved upward by a certain distance.

[0030] The stacking claw 3 can enter the paper receiving position 6 and reduce the drop of the paper with the help of the arc-shaped flange 31 to achieve tight stacking, thereby avoiding the deviation caused in the initial stage of stacking, and can solve the irregular or uneven stacking phenomenon in the process of stacking paper sheets, so that the stacking is flat and aligned. The arc-shaped flange 31 here is set as a waist-shaped flange with the paper receiving part 13 of the stacking claw 3. During the movement, there is a gap between the top of the flange and the folding roller, and at the same time, the angles between the two sides of the arc-shaped flange 31 and the horizontal plane of the paper receiving part 13 are acute angles.

[0031] Example 2

[0032] As another preferred embodiment of the present invention, this embodiment is a further detailed supplement and elaboration of the technical solution of the present invention based on the above-mentioned embodiment 1. In this embodiment, the structure of the stacking claw 3 is further improved.

[0033] Refer to the instruction manual Figure 1 As shown, most of the existing stacking claws 3 adopt an inverted "L"-shaped stacking claw 3 structure. The use of this stacking claw 3 mechanism results in a larger space between the folding rod and the stacking claw 3. It is not easy to stack the first few sheets of paper neatly when they fall. It is necessary to reduce the space distance without moving the stacking claw 3 up, so an arched pre-contact point is formed at the paper receiving portion 13.

[0034] In practice, an inclined transition portion 14 is provided between the paper receiving portion 13 and the connecting portion 12. In this embodiment, the structure of the stacking claw 3 is improved so that the front end vertex of the stacking claw 3, two transition points, and the bottom end point of the connecting portion 12 are surrounded to form a trapezoidal shape.

[0035] Example 3

[0036] This embodiment is based on the above-mentioned embodiment 1 or 2, and is an installation application of the stacking claws of the utility model technical solution. A plurality of stacking claws 3 are installed on the stacking claw 3 mechanism, and the stacking mechanism can be installed on a folding machine.

[0037] The stacking mechanism includes a lifting frame, a stacking claw mounting frame 4, and a stacking driving mechanism. The lifting frame is slidably mounted on the frame of the folding machine; the stacking driving mechanism is mounted on the lifting frame, the stacking claw mounting frame 4 is slidably mounted on the lifting frame, and the stacking driving mechanism is connected to the stacking claw mounting frame 4 and drives the stacking claw 3 to reciprocate in the direction of entering and exiting the paper receiving position 6;

[0038] A guide plate 7 is provided on the lifting frame, and a first cam groove 8 and a second cam groove 9 are formed on the guide plate 7. A first cam bearing follower 10 and a second cam bearing follower 11 are provided on the stacking claw mounting frame 4. The first cam bearing follower 10 is slidably assembled in the first cam groove 8, and the second cam bearing follower 11 is slidably assembled in the second cam groove 9. In the process of the stacking claw 3 moving toward the direction of entering the paper receiving position 6, the first cam bearing follower 10 moves obliquely upward along the first cam groove 8, and the second cam bearing follower 11 moves obliquely upward along the second cam groove 9; the apex of the second cam groove 9 is lower than the apex of the first cam groove 8; when the second cam bearing follower 11 reaches the apex of the second cam groove 9, the first cam bearing follower 10 continues to move along the first cam groove 8, so that the stacking claw mounting frame 4 rotates to a set angle with the axis of the second cam bearing follower 11 as the axis.

[0039] The above technical solution provided in this embodiment simultaneously utilizes the structure of the first cam and the second cam groove 9 to make the motion trajectory of the stacking claw 3 involved in stacking be a parabolic motion trajectory, so that the stacking claw 3 is first inserted obliquely upward into the paper receiving position 6 along the tangent direction of the folding roller, and when it is about to be in place, the stacking claw mounting frame 4 is rotated through the design of the second cam groove 9, so that the front end of the stacking claw 3 inserted into the paper receiving position 6 can produce a certain rotation, forming a parabolic motion trajectory, and completing the oblique insertion and downward pressing (pressing down the middle arched part of the paper stack) of the stacking claw 3 in a limited space to enable it to stack and connect the paper smoothly.

[0040] In this embodiment, the apex of the second cam groove 9 is set lower than the apex of the first cam groove 8, so that after the second cam bearing follower 11 reaches the apex of the second cam groove 9, it is restricted by the second cam groove 9 and cannot continue to move obliquely upward. The first cam bearing follower 10 continues to move along the first cam groove 8, so that the first cam bearing follower 10 rotates around the second cam bearing follower 11 in an arc, completing the downward rotation of the front end of the stacking claw 3.

[0041] Since the first cam bearing follower 10 needs to rotate around the second cam bearing follower 11, after the second cam bearing follower 11 reaches the apex of the second cam groove 9, the movement trajectory of the first cam bearing follower 10 is an arc segment with the apex of the second cam groove 9 as the center, that is, the cam groove trajectory of the uppermost section of the first cam groove 8 is an arc segment trajectory with the apex of the second cam groove 9 as the center.

[0042] In this embodiment, the tracks of the first cam groove 8 and the second cam groove 9 before the first cam bearing follower 10 reaches the first cam groove 8 can be designed according to the situation that the folding roller occupies the movement space of the stacking claw 3 .

[0043] Furthermore, when the stacking claw 3 is ready to enter the initial position of the receiving position, the paper receiving portion 13 is parallel to the tangent direction of the folding roller above it, and the front end of the paper receiving portion 13 is located on the side above the edge of the paper stack at the receiving position; after the stacking claw 3 enters the receiving position, the paper receiving portion 13 is horizontal.

[0044] Refer to the instruction manual Figure 2 As shown, after the structure of the stacking claw 3 of the utility model is improved, it is inserted into the paper receiving position 6 in an inclined posture. Under the limiting and guiding action of the first cam groove 8 and the second cam groove 9, the front end of the stacking claw 3 can form a parabolic motion trajectory and be inserted into the gap between a pair of folding rollers, thereby utilizing the gap space between the pair of folding rollers. Due to the presence of the transition portion 14, after the paper receiving portion 13 is inserted into the paper receiving position 6, it will not interfere with the folding roller and the bottom knife on the folding roller.

[0045] The stacking claw 3 structure of the present application can effectively utilize the limited gap space formed between the edge of the paper stack and the folding roller and the bottom knife on the folding roller, insert into the paper receiving position 6, and utilize the gap space between the rollers of a pair of folding rollers to complete the rotation and downward pressing of the front end paper receiving portion 13 of the stacking claw 3. During this process, a gap is left between the arc-shaped flange 31 and the bottom knife track; after the stacking claw 3 enters the receiving position, the paper receiving portion 13 is in a horizontal position.

[0046] The stacking claw 3 structure of the present embodiment has relatively simple requirements on the groove tracks of the first cam groove 8 and the second cam groove 9 , and can simplify the groove design of the first cam groove 8 and the second cam groove 9 .

[0047] Example 4

[0048] As another preferred embodiment of the utility model, this embodiment is a further detailed supplement and elaboration of the technical solution of the utility model based on the above-mentioned embodiment 1 or embodiment 2. In this embodiment, in the process of the stacking claw 3 moving toward the direction of entering the paper receiving position 6, the first cam bearing follower 10 deflects upward with the axis of the second cam bearing follower 11 as the axis, and when the second cam bearing follower 11 reaches the vertex of the second cam groove 9, it continues to deflect upward around the second cam bearing follower 11 by a set angle; the second cam bearing follower 11 and the first cam bearing follower 10 form a certain angle α.

[0049] As an example, in the process of the stacking claw 3 moving toward the direction of entering the paper receiving position 6, the angle α gradually increases. When the second cam bearing follower 11 and the first cam bearing follower 10 reach the apex of the second cam groove 9 and the apex of the second cam groove 8 respectively, the angle α is the largest.

[0050] In the present embodiment, when the stacking claw 3 moves toward the direction of entering the paper receiving position 6, the stacking claw mounting frame 4 can undergo a certain deflection. Compared with the movement mode in which the front end of the stacking claw 3 extends above the paper receiving position 6 and then deflects, on the one hand, the space occupied by the movement of the front end of the stacking claw 3 can be further reduced, and on the other hand, the response speed of the stacking claw 3 when inserting into the paper receiving position 6 can be improved.

[0051] Combined with the structure of the stacking claw 3 in the above-mentioned embodiment 2, the movement mode of this embodiment, when implemented, the cross section of the paper receiving portion 13 of the stacking claw 3 gradually decreases from the wider end to the thinner tip, and the thickness gradually decreases in the horizontal direction. Further reducing the space occupied by the end point of the front end paper receiving portion 13 of the stacking claw 3 and reducing its longitudinal height, it is more conducive to the movement of the stacking claw 3 in the limited gap between the edge of the paper stack and the folding roller, and the movement range of the connection point between the paper receiving portion 13 of the stacking claw 3 and the transition portion 14 will be further reduced.

[0052] Example 4

[0053] As another preferred embodiment of the present utility model, this embodiment is a further detailed supplement and elaboration of the technical solution of the present utility model on the basis of the above-mentioned embodiment 3.

[0054] In this embodiment, guide plates 7 are provided on the inner sides of both ends of the lifting frame, thereby ensuring the stable operation of the stacking claw mounting frame 4.

[0055] In this embodiment, the stacking driving mechanism can be a crank connecting rod mechanism or a cam connecting rod structure, which ensures the stability of the reciprocating movement of the stacking claw mounting frame 4 in the direction of entering and exiting the paper receiving position 6.

[0056] As an example of this embodiment, the stacking drive mechanism includes a stacking drive motor, a stacking swing arm and a stacking connecting rod. The stacking drive motor is fixedly mounted on the lifting frame. The stacking drive motor drives the stacking swing arm to swing. The stacking swing end is connected to one end of the stacking connecting rod, and the other end of the stacking connecting rod is connected to the stacking claw mounting frame.

[0057] Further preferably, the stacking drive mechanism also includes a stacking drive shaft, which is installed on the lifting frame through a bearing mounting seat, the stacking drive shaft is connected to the stacking drive motor, and a plurality of stacking swing arms are fixedly assembled on the stacking drive shaft, the stacking drive motor drives the stacking drive shaft to rotate, and the stacking drive shaft drives the plurality of stacking swing arms to swing synchronously.

[0058] Example 5

[0059] As another preferred embodiment of the present invention, this embodiment is a further detailed supplement and elaboration of the stacking action of the stacking mechanism of the present invention on the basis of the above-mentioned embodiment 3 or embodiment 4.

[0060] As an implementation mode of this embodiment, when the folding machine main body folds paper, the paper that is shifted off the folding roller by the fork is stacked on the receiving member to form a paper stack. The receiving member gradually descends as the number of layers of the paper stack increases. When the paper stack on the receiving member is stacked to a set number of layers, the stacking mechanism rises to a specified position and waits for stacking instructions.

[0061] The stacking claw 3 in the stacking mechanism moves toward the paper receiving position 6 and is inserted above the paper receiving position 6. During the insertion process, the stacking claw mounting frame 4 is driven by the stacking driving mechanism to move as a whole along the groove track of the first cam groove 8 and the second cam groove 9, and the paper receiving portion 13 at the front end of the stacking claw 3 is obliquely inserted into the gap between the rollers of the folding roller; and in this process, a certain angle α is formed between the second cam bearing follower 11 and the first cam bearing follower 10, the stacking claw mounting frame 4 is deflected by an angle α, and the front end of the stacking claw 3 is deflected by a certain angle (the angle is calculated based on the size of the stacking claw 3 and the angle α).

[0062] When the paper receiving portion 13 at the front end of the stacking claw 3 in the stacking mechanism is in a horizontal posture, the insertion action is completed, and the paper receiving portion 13 is located at the paper receiving position 6 to receive the paper falling from the folding roller.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stacking claw suitable for a folding machine, the stacking claw (3) comprising a connecting portion (12) for fixedly connecting to a stacking claw mounting frame (4), and a paper receiving portion (13) for extending into a paper receiving position (6) to receive paper under the drive of the stacking claw mounting frame (4), characterized in that: The middle portion of the paper receiving portion (13) is arched upwards to a set arc, forming an arc-shaped flange (31) protruding upwards.

2. The stacking claw suitable for a folding machine according to claim 1, characterized in that: An inclined transition portion (14) is provided between the paper receiving portion (13) and the connecting portion (12).

3. A folding mechanism suitable for a folding machine, characterized in that: The invention comprises the stacking claw (3) as claimed in claim 1 or 2, and further comprises a lifting frame, a stacking claw mounting frame (4) and a stacking drive mechanism, wherein the lifting frame is slidably mounted on the frame of the folding machine; the stacking drive mechanism is mounted on the lifting frame, the stacking claw mounting frame (4) is slidably mounted on the lifting frame, a plurality of stacking claws (3) are arranged on one side of the mounting frame, and the stacking drive mechanism is connected to the stacking claw mounting frame (4) and drives the stacking claw (3) to move back and forth in the direction of entering and exiting the paper receiving position (6).

4. The folding mechanism suitable for a folding machine according to claim 3, characterized in that: A guide plate (7) is provided on the lifting frame, and a first cam groove (8) and a second cam groove (9) are provided on the guide plate (7). A first cam bearing follower (10) and a second cam bearing follower (11) are provided on the stacking claw mounting frame (4). The first cam bearing follower (10) is slidably mounted in the first cam groove (8), and the second cam bearing follower (11) is slidably mounted in the second cam groove (9). When the stacking claw (3) moves toward the direction of entering the paper receiving position (6), the first cam bearing follower (10) is slidably mounted in the first cam groove (8), and the second cam bearing follower (11) is slidably mounted in the second cam groove (9). A cam bearing follower (10) moves obliquely upward along the first cam groove (8), and a second cam bearing follower (11) moves obliquely upward along the second cam groove (9); the apex of the second cam groove (9) is lower than the apex of the first cam groove (8); when the second cam bearing follower (11) reaches the apex of the second cam groove (9), the first cam bearing follower (10) continues to move along the first cam groove (8), so that the stacking claw mounting frame (4) rotates at a set angle with the axis of the second cam bearing follower (11) as the axis.

5. The folding mechanism suitable for a folding machine according to claim 3 or 4, characterized in that: During the process of the stacking claw (3) moving in the direction of entering the paper receiving position (6), the first cam bearing follower (10) deflects upward with the axis of the second cam bearing follower (11) as the axis, and when the second cam bearing follower (11) reaches the apex of the second cam groove (9), it continues to deflect upward around the second cam bearing follower (11) by a set angle.

6. The folding mechanism suitable for a folding machine according to claim 3 or 4, characterized in that: Guide plates (7) are provided on the inner sides of both ends of the lifting frame.

7. The folding mechanism suitable for a folding machine according to claim 3 or 4, characterized in that: The stacking drive mechanism includes a stacking drive motor, a stacking swing arm and a stacking connecting rod. The stacking drive motor is fixedly assembled on the lifting frame. The stacking drive motor drives the stacking swing arm to swing. The swinging end of the stacking swing arm is connected to one end of the stacking connecting rod, and the other end of the stacking connecting rod is connected to the stacking claw mounting frame.

8. The folding mechanism for a folding machine according to claim 7, characterized in that: The stacking drive mechanism also includes a stacking drive shaft, which is installed on the lifting frame through a bearing mounting seat, the stacking drive shaft is connected to the stacking drive motor, and a plurality of stacking swing arms are fixedly assembled on the stacking drive shaft. The stacking drive motor drives the stacking drive shaft to rotate, and the stacking drive shaft drives the plurality of stacking swing arms to swing synchronously.

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