Plywood fixed-length cutting machine

Abstract

The utility model provides a plywood fixed-length cutting machine which comprises a plywood machining table, a supporting frame is fixedly connected to the side wall of the top of the plywood machining table, and the plywood fixed-length cutting machine further comprises a positioning structure arranged on one side of the supporting frame. A positioning plate is rotated to move through a first rotating motor, the position of the positioning plate can be conveniently and well adjusted according to the length of a plate needing to be cut, the lengths of plywood cut and machined every time are the same through the positioning plate, an electric push rod extends to push a cutting machine to descend, and a second rotating motor drives the cutting machine to transversely move; and through the pressing frame, the supporting structure can be better matched with movement of the cutting structure to rotate, and therefore the machined plywood can be better supported and discharged.

Description

Technical Field

[0001] This utility model relates to the field of plywood processing technology, and in particular to a plywood fixed-length cutting machine. Background Technology

[0002] Plywood is a sheet material consisting of three or more odd-numbered layers, made by rotary cutting logs into veneers or slicing timber into thin sheets and then gluing them together with adhesives. The veneer fibers of adjacent layers are perpendicular to each other, a structure that results in relatively balanced physical and mechanical properties in all directions. During plywood processing, sometimes cutting and shaping of the plywood is necessary.

[0003] When processing plywood to a fixed length, it is usually necessary to measure and mark the plywood before cutting it along the marks using a cutting machine. This method of fixed-length cutting is cumbersome and inconvenient for cutting plywood to a fixed length. Therefore, how to better perform fixed-length cutting of plywood is an important problem that needs to be solved in the design of a plywood fixed-length cutting machine. Utility Model Content

[0004] This invention provides a plywood length cutting machine to solve the problem of inconvenience in cutting plywood to a fixed length.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a plywood length-cutting machine, including...

[0007] A plywood processing table, with a fixed support frame on the top side wall of the plywood processing table;

[0008] A positioning structure is provided on one side of the support frame.

[0009] The sheet metal cutting structure is mounted on a support frame.

[0010] The pressing structure is located on one side of the sheet metal cutting structure;

[0011] The support structure is set on the plywood processing table, and the rotation adjustment of the support structure is controlled by the pressing structure.

[0012] Preferably, the bottom side wall of the plywood processing table is provided with a cutting groove and a material unloading groove, which are located on both sides of the support frame. The material unloading rack and four support rods are fixedly connected to the bottom side wall of the plywood processing table, and a support plate is fixedly connected to the top side wall of the plywood processing table. A controller is provided on the side wall of the support frame.

[0013] In this technical solution, the unloading rack can receive the processed plywood.

[0014] Preferably, the unloading rack is located below the unloading channel, and two ruler rods are fixedly connected between the support plate and the support frame.

[0015] In this technical solution, the distance the positioning plate moves can be accurately determined based on the scale on the ruler.

[0016] Preferably, the positioning structure includes a first rotating motor, a rotating block, a first moving block, a positioning plate, and a first threaded rod. The first rotating motor is fixedly connected to the side wall of the support plate. The rotating end of the first rotating motor is fixedly connected to the rotating block. The first threaded rod is fixedly connected to the side wall of the rotating block. The other end of the first threaded rod is rotatably connected to the side wall of the support frame. The first moving block is threadedly connected to the first threaded rod. The positioning plate is fixedly connected between the first moving blocks. The bottom of the positioning plate is attached to the top side wall of the plywood processing table.

[0017] In this technical solution, the rotation of the first rotating motor drives the rotating block to rotate, the rotating block drives the first threaded rod to rotate, the first threaded rod drives the first moving block to move, and the first moving block drives the positioning plate to move.

[0018] Preferably, the support structure includes a second support plate, a first rotating rod, and a third rotating motor. The first rotating rod is rotatably connected in the material feeding channel. The second support plate is fixedly connected to the side wall of the first rotating rod. The length and width of the second support plate are consistent with the length and width of the material feeding channel. The top side wall of the second support plate is flush with the top side wall of the plywood processing table. The third rotating motor is fixedly connected to the side wall of the plywood processing table. The rotating end of the third rotating motor is fixedly connected to one end of the first rotating rod. The third rotating motor is electrically connected to a controller.

[0019] In this technical solution, the third rotating motor rotates counterclockwise, driving the first rotating rod to rotate. The first rotating rod drives the second support plate to rotate counterclockwise, so that the second support plate no longer supports the plywood. The third rotating motor rotates clockwise, driving the second support plate to rotate clockwise upward, re-sealing it in the feeding trough, and supporting the plywood above.

[0020] Preferably, the plate cutting structure includes a fixed housing, an electric push rod, a connecting plate, a fixing plate, and a fixing pad. The electric push rod is fixedly connected to the top inner wall of the support frame, the bottom of the electric push rod is fixedly connected to the fixed housing, the bottom side wall of the fixed housing is fixedly connected to the connecting plate, the bottom of the connecting plate is fixedly connected to the fixing plate, the bottom side wall of the fixing plate is fixedly connected to the fixing pad, and the two ends of the fixing plate and the fixing pad are attached to the inner wall of the support frame.

[0021] In this technical solution, the electric push rod extends to push the fixed housing down, the fixed housing pushes the first moving block and the connecting plate down, the first moving block drives the fixed frame down, the fixed frame drives the cutting machine down, the connecting plate drives the fixed plate down, the fixed plate drives the fixed pad down, until the fixed pad abuts against the top side wall of the plywood, thus fixing the plywood.

[0022] Preferably, the plate cutting structure includes a cutting machine, a fixed frame, a second moving block, a second threaded rod, and a second rotating motor. The second threaded rod is rotatably connected to the inner side wall of the fixed housing, and the second rotating motor is fixedly connected to the side wall of the fixed housing. The rotating end of the second rotating motor is fixedly connected to the second threaded rod, and the second moving block is threadedly connected to the second threaded rod. The second moving block is slidably connected inside the fixed housing, and the fixed frame is fixedly connected to the side wall of the second moving block. The cutting machine is fixedly connected to the bottom of the fixed frame.

[0023] In this technical solution, the second rotating motor rotates, driving the second threaded rod to rotate. The second threaded rod drives the moving block to move, the second moving block drives the fixed frame to move, and the fixed frame drives the cutting machine to move laterally to separate and cut the plywood.

[0024] Preferably, the cutting machine is positioned directly opposite the cutting groove.

[0025] Preferably, two square through slots and a rotating through slot are provided on the side wall of the support frame. The square through slots and the rotating through slot are interconnected. A first push switch and a second push switch are fixedly connected to the inner side wall of the two square through slots, respectively. Both the first push switch and the second push switch are electrically connected to the controller.

[0026] Preferably, the pressing structure includes a pressing frame, a second rotating rod, a pressing block, and a magnet. The magnet is fixedly connected to the side walls on both sides of the rotating channel. The second rotating rod is rotatably connected inside the rotating channel. The pressing frame is fixedly connected to the side wall of the second rotating rod, and the pressing blocks are fixedly connected to both ends of the pressing frame.

[0027] In this technical solution, when the pressing frame is pressed downward, the first pressing switch pops up, the second pressing switch is pressed, and the controller controls the third rotating motor to drive the second support plate to rotate counterclockwise. When the pressing frame is pressed upward, the first pressing switch is pressed, the second pressing switch pops up, and the controller controls the third rotating motor to drive the second support plate to rotate clockwise.

[0028] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0029] The positive and progressive effects of this utility model are as follows:

[0030] 1. The rotation of the first rotating motor drives the first threaded rod to rotate, the first threaded rod drives the first moving block to move, and the first moving block drives the positioning plate to move. The distance the positioning plate moves is accurately determined according to the scale on the scale rod, so as to better adjust the position of the positioning plate according to the length of the material to be cut.

[0031] 2. Place the plywood to be cut on the plywood processing table, push one end of the plywood against the side wall of the positioning plate. When the positioning plate is in a constant position relative to the cutting machine, the length of the plywood cut each time is the same. The electric push rod extends and pushes the cutting machine down. The second rotating motor rotates and drives the second threaded rod to rotate. The second threaded rod drives the moving block to move. The second moving block drives the cutting machine to move laterally, separating and cutting the plywood, which facilitates better fixed-length cutting of the plywood.

[0032] 3. The electric push rod extends to lower the fixing plate and fixing pad until the fixing pad abuts against the top side wall of the plywood, fixing the plywood. At this time, the pressing frame is pressed down, the first pressing switch pops up, and the second pressing switch is pressed, causing the third rotating motor to drive the second support plate to rotate counterclockwise, no longer supporting the plywood. When the cutting is finished, the electric push rod drives the fixing plate and fixing pad to rise. At this time, the fixing plate and fixing pad no longer fix the cut plywood, and the plywood will tilt downwards and slide down for unloading. The fixing plate presses the pressing frame upwards, the first pressing switch is pressed, and the second pressing switch pops up, causing the third rotating motor to drive the second support plate to rotate clockwise upwards, re-sealing in the unloading groove, supporting the plywood above. This allows the support structure to better cooperate with the movement of the cutting structure, thus better supporting and unloading the processed plywood. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the plywood fixed-length cutting machine of this utility model.

[0034] Figure 2 This is a schematic diagram of the internal structure of the plywood length-cutting machine of this utility model.

[0035] Figure 3 This is a side view of the internal structure of the plywood length cutting machine of this utility model.

[0036] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0037] Explanation of reference numerals in the attached figures

[0038] 1. Plywood processing table; 2. Support frame; 3. Cutting groove; 4. Unloading rack; 5. First support plate; 6. Positioning structure; 601. First rotating motor; 602. Rotating block; 603. First moving block; 604. Positioning plate; 605. First threaded rod; 7. Ruler rod; 8. Board cutting structure; 801. Fixed housing; 802. Electric push rod; 803. Connecting plate; 804. Fixed plate; 805. Fixed pad; 811. Cutting machine; 812. Fixed frame; 813. Second moving block 814. Moving block; 815. Second threaded rod; 816. Second rotating motor; 9. Support rod; 10. Support structure; 1001. Second support plate; 1002. First rotating rod; 1003. Third rotating motor; 11. Feeding channel; 12. Square channel; 13. First push switch; 14. Second push switch; 15. Rotating channel; 16. Pressing structure; 1601. Pressing frame; 1602. Second rotating rod; 1603. Pressing block; 1604. Magnet; 17. Controller. Detailed Implementation

[0039] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0040] like Figure 1-4 As shown, the plywood length cutting machine includes...

[0041] A plywood processing table 1, with a support frame 2 fixedly connected to the top side wall of the plywood processing table 1.

[0042] Positioning structure 6 is provided on one side of support frame 2;

[0043] The plate cutting structure 8 is mounted on the support frame 2.

[0044] Pressing structure 16 is provided on one side of the sheet metal cutting structure 8;

[0045] Support structure 10 is set on plywood processing table 1, and pressing structure 16 controls the rotation adjustment of support structure 10.

[0046] A cutting groove 3 and a material unloading groove 11 are provided on the bottom side wall of the plywood processing table 1. The cutting groove 3 and the material unloading groove 11 are located on both sides of the support frame 2. A material unloading rack 4 and four support rods 9 are fixedly connected to the bottom side wall of the plywood processing table 1. A first support plate 5 is fixedly connected to the top side wall of the plywood processing table 1. A controller 17 is provided on the side wall of the support frame 2.

[0047] The unloading rack 4 can receive the processed plywood.

[0048] The feeding rack 4 is located below the feeding channel 11, and two ruler rods 7 are fixedly connected between the first support plate 5 and the support frame 2.

[0049] The distance the positioning plate 604 has moved can be accurately determined by the scale on the ruler rod 7.

[0050] The positioning structure 6 includes a first rotating motor 601, a rotating block 602, a first moving block 603, a positioning plate 604, and a first threaded rod 605. The first rotating motor 601 is fixedly connected to the side wall of the first support plate 5. The rotating end of the first rotating motor 601 is fixedly connected to the rotating block 602. The first threaded rod 605 is fixedly connected to the side wall of the rotating block 602. The other end of the first threaded rod 605 is rotatably connected to the side wall of the support frame 2. The first moving block 603 is threadedly connected to the first threaded rod 605. The positioning plate 604 is fixedly connected between the first moving blocks 603. The bottom of the positioning plate 604 is attached to the top side wall of the plywood processing table 1.

[0051] The first rotating motor 601 rotates, causing the rotating block 602 to rotate. The rotating block 602 drives the first threaded rod 605 to rotate. The first threaded rod 605 drives the first moving block 603 to move. The first moving block 603 drives the positioning plate 604 to move.

[0052] The support structure 10 includes a second support plate 1001, a first rotating rod 1002, and a third rotating motor 1003. The first rotating rod 1002 is rotatably connected to the material feeding channel 11. The second support plate 1001 is fixedly connected to the side wall of the first rotating rod 1002. The length and width of the second support plate 1001 are the same as the length and width of the material feeding channel 11. The top side wall of the second support plate 1001 is flush with the top side wall of the plywood processing table 1. The third rotating motor 1003 is fixedly connected to the side wall of the plywood processing table 1. The rotating end of the third rotating motor 1003 is fixedly connected to one end of the first rotating rod 1002. The third rotating motor 1003 is electrically connected to the controller 17.

[0053] The third rotating motor 1003 rotates counterclockwise, driving the first rotating rod 1002 to rotate. The first rotating rod 1002 drives the second support plate 1001 to rotate counterclockwise, so that the second support plate 1001 no longer supports the plywood. The third rotating motor 1003 rotates clockwise, driving the second support plate 1001 to rotate clockwise upward, re-sealing in the feeding trough and supporting the plywood above.

[0054] The plate cutting structure 8 includes a fixed housing 801, an electric push rod 802, a connecting plate 803, a fixing plate 804, and a fixing pad 805. The electric push rod 802 is fixedly connected to the top inner wall of the support frame 2. The bottom of the electric push rod 802 is fixedly connected to the fixed housing 801. The connecting plate 803 is fixedly connected to the bottom side wall of the fixed housing 801. The bottom of the connecting plate 803 is fixedly connected to the fixing plate 804. The bottom side wall of the fixing plate 804 is fixedly connected to the fixing pad 805. The two ends of the fixing plate 804 and the fixing pad 805 are attached to the inner wall of the support frame 2.

[0055] The electric push rod 802 extends to push the fixed housing 801 down, the fixed housing 801 pushes the first moving block 603 and the connecting plate 803 down, the first moving block 603 drives the fixed frame 812 down, the fixed frame 812 drives the cutting machine 811 down, the connecting plate 803 drives the fixed plate 804 down, the fixed plate 804 drives the fixed pad 805 down, until the fixed pad 805 abuts against the top side wall of the plywood, thus fixing the plywood.

[0056] The sheet metal cutting structure 8 includes a cutting machine 811, a fixed frame 812, a second moving block 813, a second threaded rod 814, and a second rotating motor 815. The second threaded rod 814 is rotatably connected to the inner side wall of the fixed housing 801, and the second rotating motor 815 is fixedly connected to the side wall of the fixed housing 801. The rotating end of the second rotating motor 815 is fixedly connected to the second threaded rod 814. The second moving block 813 is threadedly connected to the second threaded rod 814. The second moving block 813 is slidably connected inside the fixed housing 801. The fixed frame 812 is fixedly connected to the side wall of the second moving block 813, and the cutting machine 811 is fixedly connected to the bottom of the fixed frame 812.

[0057] The second rotating motor 815 rotates, driving the second threaded rod 814 to rotate. The second threaded rod 814 drives the moving block to move. The second moving block 813 drives the fixed frame 812 to move. The fixed frame 812 drives the cutting machine 811 to move laterally, separating and cutting the plywood.

[0058] The cutting machine 811 is facing the cutting groove 3.

[0059] The support frame 2 has two square through slots 12 and a rotating through slot 15 on its side wall. The square through slots 12 and the rotating through slot 15 are connected to each other. The first push switch 13 and the second push switch 14 are fixedly connected to the inner side wall of the two square through slots 12 respectively. The first push switch 13 and the second push switch 14 are both electrically connected to the controller 17.

[0060] The pressing structure 16 includes a pressing frame 1601, a second rotating rod 1602, a pressing block 1603, and a magnet 1604. The magnet 1604 is fixedly connected to the side walls on both sides of the rotating through groove 15. The second rotating rod 1602 is rotatably connected inside the rotating through groove 15. The pressing frame 1601 is fixedly connected to the side wall of the second rotating rod 1602. The pressing blocks 1603 are fixedly connected to both ends of the pressing frame 1601.

[0061] When the pressing bracket 1601 is pressed downward, the first pressing switch 13 pops up, the second pressing switch 14 is pressed, and the controller 17 controls the third rotating motor 1003 to drive the second support plate 1001 to rotate counterclockwise. When the pressing bracket 1601 is pressed upward, the first pressing switch 13 is pressed, the second pressing switch 14 pops up, and the controller 17 controls the third rotating motor 1003 to drive the second support plate 1001 to rotate clockwise.

[0062] In use, all electrical components mentioned in this application are connected to an external power supply and control switch. The plywood to be cut is placed on the plywood processing table 1, and one end of the plywood is pushed against the side wall of the positioning plate 604. When the positioning plate 604 is in a fixed position relative to the cutting machine 811, the length of the plywood cut each time is the same. The electric push rod 802 extends and pushes the fixed housing 801 down. The fixed housing 801 pushes the first moving block 603 and the connecting plate 803 down. The first moving block 603 drives the fixed frame 812 down. The fixed frame 812 drives the cutting machine 811 down. The connecting plate 803 drives the fixed plate 804 down. The fixed plate 804 drives the fixed pad 805 down until the fixed pad 805 abuts against the top side wall of the plywood, thus fixing the plywood.

[0063] At this time, the cutting machine 811 can cut the plywood. The fixing plate 804 and the fixing pad 805 descend over the two pressing frames 1601. The upper pressing frame 1601 is pressed down, and the first pressing switch 13 is no longer pressed and pops up. When the fixing pad 805 touches the top of the check plate, the fixing plate 804 and the fixing pad 805 press the raised end of the lower pressing frame 1601 into the rotating through groove 15. The pressing block 1603 presses the second pressing switch 14. The second pressing switch 14 is pressed, and the controller 17 controls the third rotating motor 1003 to rotate counterclockwise, driving the first rotating rod 1002 to rotate. The first rotating rod 1002 drives the second support plate 1001 to rotate counterclockwise, so that the second support plate 1001 no longer supports the plywood. However, the fixing plate 804 and the fixing pad 805 fix the plywood. Therefore, it will not affect the cutting of the plywood.

[0064] The second rotating motor 815 rotates, driving the second threaded rod 814 to rotate. The second threaded rod 814 drives the moving block to move. The second moving block 813 drives the fixed frame 812 to move. The fixed frame 812 drives the cutting machine 811 to move laterally to separate and cut the plywood. When the cutting is finished, the electric push rod 802 drives the fixed plate 804 and the fixed pad 805 to rise. At this time, the fixed plate 804 and the fixed pad 805 no longer fix the plywood after cutting. Since the support plate no longer supports the plywood, the plywood will tilt downward and slide down into the unloading rack 4 below.

[0065] The fixed plate 804 passes over the upper pressing frame 1601, which is pressed upwards. The pressing block 1603 presses the first pressing switch 13. When the first pressing switch 13 is pressed, the controller 17 controls the third rotating motor 1003 to rotate clockwise, which drives the second support plate 1001 to rotate clockwise upwards and re-seal it in the feeding groove, supporting the plywood above. This allows the support structure 10 to rotate in coordination with the movement of the cutting structure, thus better supporting and feeding the plywood being processed. The rotation of the first rotating motor 601 drives the rotating block 602 to rotate, which in turn drives the first threaded rod 605 to rotate. The first threaded rod 605 drives the first moving block 603 to move, which in turn drives the positioning plate 604 to move. The distance the positioning plate 604 moves is accurately determined according to the scale on the ruler 7, thus allowing the position of the positioning plate 604 to be adjusted according to the length of the material to be cut.

[0066] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A plywood fixed-length cutting machine, characterized in that, include A plywood processing table, wherein a support frame is fixedly connected to the top side wall of the plywood processing table; A positioning structure is provided on one side of the support frame; A sheet metal cutting structure, wherein the sheet metal cutting structure is mounted on a support frame; The pressing structure is disposed on one side of the sheet metal cutting structure; A support structure is provided, which is set on a plywood processing table, and a pressing structure controls the rotation and adjustment of the support structure.

2. The plywood fixed-length cutting machine as described in claim 1, characterized in that: The plywood processing table has a cutting groove and a material feeding groove on its bottom side wall. The cutting groove and the material feeding groove are located on both sides of the support frame. The material feeding rack and four support rods are fixedly connected to the bottom side wall of the plywood processing table. A support plate is fixedly connected to the top side wall of the plywood processing table. A controller is provided on the side wall of the support frame.

3. The plywood length-cutting machine as described in claim 2, characterized in that: The feeding rack is located below the feeding channel, and two ruler rods are fixedly connected between the support plate and the support frame.

4. The plywood length-cutting machine as described in claim 1, characterized in that: The positioning structure includes a first rotating motor, a rotating block, a first moving block, a positioning plate, and a first threaded rod. The first rotating motor is fixedly connected to the side wall of the support plate. The rotating end of the first rotating motor is fixedly connected to the rotating block. The first threaded rod is fixedly connected to the side wall of the rotating block. The other end of the first threaded rod is rotatably connected to the side wall of the support frame. The first moving block is threadedly connected to the first threaded rod. The positioning plate is fixedly connected between the first moving blocks. The bottom of the positioning plate is attached to the top side wall of the plywood processing table.

5. The plywood length-cutting machine as described in claim 4, characterized in that: The support structure includes a second support plate, a first rotating rod, and a third rotating motor. The first rotating rod is rotatably connected to the material feeding slot. The second support plate is fixedly connected to the side wall of the first rotating rod. The length and width of the second support plate are the same as the length and width of the material feeding slot. The top side wall of the second support plate is flush with the top side wall of the plywood processing table. The third rotating motor is fixedly connected to the side wall of the plywood processing table. The rotating end of the third rotating motor is fixedly connected to one end of the first rotating rod. The third rotating motor is electrically connected to a controller.

6. The plywood length-cutting machine as described in claim 1, characterized in that: The plate cutting structure includes a fixed housing, an electric push rod, a connecting plate, a fixing plate, and a fixing pad. The electric push rod is fixedly connected to the top inner wall of the support frame. The bottom of the electric push rod is fixedly connected to the fixed housing. The connecting plate is fixedly connected to the bottom side wall of the fixed housing. The bottom of the connecting plate is fixedly connected to the fixing plate. The bottom side wall of the fixing plate is fixedly connected to the fixing pad. The two ends of the fixing plate and the fixing pad are attached to the inner wall of the support frame.

7. The plywood length-cutting machine as described in claim 6, characterized in that: The plate cutting structure includes a cutting machine, a fixed frame, a second moving block, a second threaded rod, and a second rotating motor. The second threaded rod is rotatably connected to the inner side wall of the fixed housing, and the second rotating motor is fixedly connected to the side wall of the fixed housing. The rotating end of the second rotating motor is fixedly connected to the second threaded rod, and the second moving block is threadedly connected to the second threaded rod. The second moving block is slidably connected inside the fixed housing, and the fixed frame is fixedly connected to the side wall of the second moving block. The cutting machine is fixedly connected to the bottom of the fixed frame.

8. The plywood length-cutting machine as described in claim 7, characterized in that: The cutting machine is facing the cutting groove.

9. The plywood length-cutting machine as described in claim 1, characterized in that: The support frame has two square through slots and a rotating through slot on its side wall. The square through slots and the rotating through slot are interconnected. A first push switch and a second push switch are fixedly connected to the inner side wall of the two square through slots, respectively. The first push switch and the second push switch are electrically connected to the controller.

10. The plywood length-cutting machine as described in claim 1, characterized in that: The pressing structure includes a pressing frame, a second rotating rod, pressing blocks, and a magnet. The magnet is fixedly connected to the side walls on both sides of the rotating channel. The second rotating rod is rotatably connected inside the rotating channel. The pressing frame is fixedly connected to the side wall of the second rotating rod. The pressing blocks are fixedly connected to both ends of the pressing frame.

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