Soap production dicing device with positioning structure

By introducing a positioning component and a cutting component into the soap cutting device, automatic positioning and cutting of soap are achieved, which solves the problem of inconsistent cut shapes and improves production efficiency and safety.

CN223481101UActive Publication Date: 2025-10-28HEBEI BAIYUN DAILY CHEM CO LTD
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Patent Information

Application Number
CN202421509158.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-10-28
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

Existing soap cutting machines lack positioning structures, resulting in inconsistent cut shapes that require repeated rework and severely reduce production efficiency.

Method used

A soap production and cutting device with a positioning structure is designed, which includes a positioning component, a pushing component, a first cutting component and a second cutting component. The motor drives the threaded screw to drive the movement of the limit slider and the clamping plate, the pushing plate and the cutting knife to realize the automatic positioning, pushing and cutting operations of the soap.

Benefits of technology

It effectively prevents the soap from shifting during the cutting process, improving cutting efficiency and convenience, reducing manual operation, and enhancing safety.

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Abstract

The utility model relates to the field of soap production, in particular to a soap production dicing device with a positioning structure. The technical problems that in the soap cutting process, due to the fact that a positioning structure is not arranged, the offset phenomenon occurs, cut soap is different in shape and size, repeated reworking is needed, and the production efficiency is seriously reduced are solved. According to the technical scheme, the soap production dicing device with the positioning structure comprises a supporting bottom plate (1) and further comprises a first cutting assembly (10) and a second cutting assembly (13). According to the soap cutting device, by arranging the positioning assembly (4), soap of different specifications can be positioned, then the soap to be cut can be automatically pushed through the pushing assembly (6), then the soap to be cut can be cut into long blocks conveniently through the first cutting assembly (10) according to processing requirements, then the long blocks are cut into long blocks through the second cutting assembly (13), and then the soap to be cut is cut into long blocks through the second cutting assembly (13). And a plurality of groups of long block-shaped soap can be automatically diced.
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Description

Technical Field

[0001] This utility model relates to the field of soap production, and in particular to a soap production cutting device with a positioning structure. Background Technology

[0002] While the variety of laundry detergents and synthetic detergents is constantly increasing, soap remains one of the main laundry products in the market due to its durability and ability to clean clothes effectively. Soap is a general term for fatty acid metal salts, with the general formula RCOOM, where RCOO is the fatty acid radical and M is the metal ion. The number of carbon atoms in the fatty acids in daily soap is generally 10-18, and the metal is mainly alkali metals such as sodium or potassium. Special-purpose soaps are also made using ammonia and certain organic bases such as ethanolamine and triethanolamine. In the processing of soap, it is often cut into strips and then into blocks using a block-cutting device to achieve the required size and shape. However, existing block-cutting devices cannot simultaneously cut strips and blocks, requiring different devices to complete the process, which increases the complexity of soap production. Furthermore, the lack of a positioning structure during soap block cutting leads to misalignment, resulting in inconsistent shapes and sizes that fail to meet production requirements, necessitating rework and severely reducing production efficiency. This, in turn, easily affects the ease of use of the entire block-cutting device. Utility Model Content

[0003] To overcome the problem that during the soap production and cutting process, the lack of a positioning structure can cause misalignment, resulting in inconsistent shapes and sizes of the cut pieces, requiring repeated rework and severely reducing production efficiency.

[0004] The technical solution of this utility model is as follows: a soap production cutting device with a positioning structure, including a supporting base plate, a supporting base, a first limiting slide groove, a positioning component, a second limiting slide groove, a pushing component, a fixing frame, a fourth limiting slide groove, a mounting groove, a first cutting component, a fixing column, a fifth limiting slide groove, and a second cutting component. Supporting bases are installed at the four corners of the bottom of the supporting base plate. First limiting slide grooves are provided on the left and right sides of the front and rear ends of the top of the supporting base plate. The lower ends of the first limiting slide grooves at the left and right ends are connected through each other. A fixing column is commonly provided at the upper end of the interior of the first limiting slide groove. The support base plate has a second limiting groove horizontally oriented at the top center. A pushing component is installed at the upper end of the second limiting groove. A fixing frame is installed on the upper left side of the support base plate. A fourth limiting groove is oriented at the top of the fixing frame. An installation groove is oriented at the top of the fixing frame and at the rear end of the fourth limiting groove. A first cutting component is installed inside the fourth limiting groove. Fixing columns are installed at both the front and rear ends of the top of the support base plate and at the left end of the fixing frame. A fifth limiting groove is oriented at the upper inner side of both sets of fixing columns. A second cutting component is installed inside both sets of fifth limiting grooves.

[0005] Preferably, by setting a positioning component, soaps of different specifications can be positioned. Then, by using a pushing component, the soap blocks to be cut can be automatically pushed, avoiding manual operation and improving safety. Depending on the size of the soap blocks to be cut, a bidirectional hydraulic cylinder can be activated to drive the two sets of push plates to adjust inward or outward. Then, the first cutting component can easily cut the soap blocks into long blocks according to processing needs. Finally, the second cutting component can automatically cut multiple sets of long soap blocks into blocks, effectively improving production efficiency and significantly enhancing the ease of use of the entire cutting device.

[0006] Preferably, the positioning assembly includes a first drive motor, a first threaded screw, a first limiting slider, and a clamping plate. Two sets of first drive motors are installed at the rear left and right ends of the support base plate, respectively. The front output ends of both sets of first drive motors are connected to first threaded screws located inside the first limiting grooves at the left and right ends. The outer walls of both sets of first threaded screws have threads in opposite directions at both the front and rear ends. First limiting sliders are threadedly connected to the outer walls of both sets of first threaded screws at both the front and rear ends. Clamping plates are installed on the tops of the front and rear sets of first limiting sliders. By simultaneously activating the two sets of first drive motors to rotate the first threaded screws, the first limiting sliders at the front and rear ends move the two clamping plates inward or outward simultaneously. This allows for positioning of soaps of different sizes, preventing displacement or detachment during use.

[0007] Preferably, the feeding assembly includes a second drive motor, a second threaded screw, a second limiting slider, a connecting plate, a bidirectional hydraulic cylinder, a push plate, a third limiting groove, and a limiting slide rod. The second drive motor is installed on the right side of the support base plate. The left output end of the second drive motor is connected to the second threaded screw located inside the second limiting groove. The outer wall of the second threaded screw is threadedly connected to the second limiting slider. The top of the second limiting slider is equipped with a connecting plate. By starting the second drive motor to drive the rotation of the second threaded screw, the second limiting slider moves the connecting plate left and right for adjustment. This enables automatic feeding of the soap blocks to be cut, avoiding manual operation and improving safety.

[0008] Preferably, a bidirectional hydraulic cylinder is provided on the right side of the connecting plate. The output ends of the bidirectional hydraulic cylinder on both the front and rear sides are connected to push plates through push rods. Depending on the different sizes of the soap to be cut, the bidirectional hydraulic cylinder can be activated to drive the two sets of push plates to adjust inward or outward to adapt to the pushing operation.

[0009] Preferably, the connecting plate has a third limiting groove at both the front and rear ends on the left side. The inner left ends of the two sets of push plates are connected to a limiting rod located inside the third limiting groove. The limiting rod is engaged with the inside of the third limiting groove, making the movement of the push plate more stable and avoiding deviation.

[0010] Preferably, the first cutting assembly includes a third drive motor, a third threaded screw, a third limiting slider, and a first cutting blade. The third drive motor is installed inside the mounting groove. The front output end of the third drive motor is connected to the third threaded screw located inside the fourth limiting groove. The outer side wall of the third threaded screw has threads in opposite directions at both ends. The outer side wall of the third threaded screw is threaded to the front and rear ends, and the third limiting slider is threaded to both ends. The bottom of each of the two sets of third limiting sliders is equipped with a first cutting blade. By starting the third drive motor to drive the rotation of the third threaded screw, the two sets of third limiting sliders move inward and outward simultaneously for adjustment. This facilitates the cutting of the soap into long blocks according to processing needs, which is convenient for subsequent processing.

[0011] Preferably, the second cutting assembly includes a fourth drive motor, a fourth threaded screw, a fourth limiting slider, a lifting plate, and a second cutting blade. Two sets of fourth drive motors are installed on the top of two sets of fixed columns. The bottom output ends of both sets of fourth drive motors are connected to a fourth threaded screw located inside a fifth limiting groove. The outer walls of both sets of fourth threaded screws are threaded with fourth limiting sliders. The inner sides of both sets of fourth limiting sliders are connected to a lifting plate. The bottom of the lifting plate is equipped with a second cutting blade. By simultaneously activating the four drive motors to rotate the fourth threaded screws, the two sets of fourth limiting sliders can drive the lifting and lowering operation of the second cutting blade, facilitating automatic cutting of multiple long blocks of soap and effectively improving production efficiency.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up a composite structure of positioning component, pushing component, first cutting component and second cutting component to replace the original single structure, the positioning operation of soap of different specifications can be achieved to prevent displacement or falling off during use. It can also automatically push soap of different sizes to be cut into blocks, and then cut the soap into long blocks first, and then automatically cut multiple groups of long blocks of soap into blocks, which effectively improves production efficiency and can improve the ease of use of the whole cutting device to a certain extent.

[0014] 2. By using the positioning component, two sets of first drive motors are simultaneously activated to drive the rotation of the first threaded screw, so that the first limit sliders at the front and rear ends drive the two sets of clamping plates to move inward or outward at the same time. This can perform positioning operations on soaps of different specifications and prevent displacement or detachment during use.

[0015] 3. By using the feeding assembly, the second drive motor is started to drive the rotation of the second threaded screw, which causes the second limit slider to move the connecting plate left and right for adjustment. This enables automatic feeding of the soap blocks to be cut, avoiding manual operation and making it safer.

[0016] 4. The first cutting component starts the third drive motor to drive the rotation of the third threaded screw, so that the two sets of third limit sliders move inward and outward at the same time to adjust, so as to cut the soap to be cut into long blocks according to the processing needs.

[0017] 5. Through the second cutting component, the four drive motors are simultaneously activated to drive the rotation of the fourth threaded screw, so that the two sets of fourth limit sliders can drive the lifting and lowering operation of the second cutting blade, which facilitates the automatic cutting of multiple long blocks of soap. Attached Figure Description

[0018] Figure 1 The diagram shown is a first three-dimensional structural schematic of this utility model;

[0019] Figure 2 The diagram shown is a second three-dimensional structural schematic of this utility model;

[0020] Figure 3 The diagram shown is a three-dimensional structural diagram of the positioning component of this utility model.

[0021] Figure 4 The diagram shown is a three-dimensional structural diagram of the material pushing component of this utility model.

[0022] Figure 5 The diagram shown is a three-dimensional structural diagram of the first cutting component of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1-Support base plate, 2-Support base, 3-First limiting slide groove, 4-Positioning component, 5-Second limiting slide groove, 6-Pushing component, 7-Fixing frame, 8-Fourth limiting slide groove, 9-Mounting groove, 10-First cutting component, 11-Fixing column, 12-Fifth limiting slide groove, 13-Second cutting component, 401-First drive motor, 402-First threaded screw, 403-First limiting slider, 404-Clamping plate, 601-Second drive motor 602-Second threaded screw, 603-Second limit slider, 604-Connecting plate, 605-Two-way hydraulic cylinder, 606-Push plate, 607-Third limit slide groove, 608-Limit slide rod, 101-Third drive motor, 102-Third threaded screw, 103-Third limit slider, 104-First cutting blade, 301-Fourth drive motor, 302-Fourth threaded screw, 303-Fourth limit slider, 304-Lifting plate, 305-Second cutting blade. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figure 1-3 This utility model provides an embodiment of a soap production cutting device with a positioning structure, including a supporting base plate 1, a supporting base 2, a first limiting groove 3, a positioning component 4, a second limiting groove 5, a pushing component 6, a fixing frame 7, a fourth limiting groove 8, a mounting groove 9, a first cutting component 10, a fixing column 11, a fifth limiting groove 12, and a second cutting component 13. Supporting bases 2 are installed at the four corners of the bottom of the supporting base plate 1. First limiting grooves 3 are provided on the left and right sides of the front and rear ends of the top of the supporting base plate 1. The lower ends of the first limiting grooves 3 at the left and right ends are connected. A positioning component 4 is commonly provided inside the upper end of the first limiting groove 3. The positioning component 4 includes a first drive motor 401, a first threaded rod 402, a first limiting slider 403, and a clamping plate 404. The first drive motor 401 is configured as two... The two sets of first drive motors 401 are respectively installed on the left and right ends of the rear side of the support base plate 1. The front output ends of the two sets of first drive motors 401 are connected to the first threaded rods 402 located inside the first limiting slide grooves 3 at the left and right ends. The outer walls of the two sets of first threaded rods 402 are provided with threads in opposite directions at the front and rear ends. The outer walls of the two sets of first threaded rods 402 are threaded to the front and rear ends of the first limiting slides 403. The top of the two sets of first limiting slides 403 at the front end and the top of the two sets of first limiting slides 403 at the rear end are equipped with clamping plates 404. By simultaneously starting the two sets of first drive motors 401 to drive the rotation of the first threaded rods 402, the first limiting slides 403 at the front and rear ends drive the two sets of clamping plates 404 to move inward or outward at the same time. This can perform positioning operations on soaps of different specifications and prevent displacement or falling off during use.

[0026] Please see Figure 4-5In this embodiment, a second limiting groove 5 is horizontally formed at the center of the top of the supporting base plate 1. A pushing assembly 6 is provided at the upper end of the inner part of the second limiting groove 5. The pushing assembly 6 includes a second drive motor 601, a second threaded screw 602, a second limiting slider 603, a connecting plate 604, a bidirectional hydraulic cylinder 605, a push plate 606, a third limiting groove 607, and a limiting slide rod 608. The second drive motor 601 is installed on the right side of the supporting base plate 1. The left output end of the second drive motor 601 is connected to the second threaded screw 602 located inside the second limiting groove 5. The outer wall of the second threaded screw 602 is threadedly connected to the second limiting slider 603. A connecting plate 604 is installed on the top of the second limiting slider 603. The second drive motor 601 is activated to rotate the second threaded screw 602, causing the second limit slider 603 to move the connecting plate 604 left and right for adjustment. This enables automatic feeding of the soap to be cut, avoiding manual operation and improving safety. A bidirectional hydraulic cylinder 605 is installed on the right side of the connecting plate 604. The front and rear output ends of the bidirectional hydraulic cylinder 605 are connected to push plates 606 via push rods. Depending on the size of the soap to be cut, the bidirectional hydraulic cylinder 605 can be activated to adjust the two sets of push plates 606 inward or outward to adapt to the feeding operation. The front and rear ends of the left side of the connecting plate 604 are provided with third limit grooves 607. The inner left ends of the two sets of push plates 606 are connected to the third limit grooves 607. The limiting slide rod 608 inside the 07 is engaged with the internal locking connection of the third limiting slide groove 607, making the movement of the push plate 606 more stable and avoiding deviation. A fixing frame 7 is installed on the upper left side of the support base plate 1. A fourth limiting slide groove 8 is opened on the top of the fixing frame 7. An installation groove 9 is opened on the top of the fixing frame 7 and at the rear end of the fourth limiting slide groove 8. A first cutting assembly 10 is set inside the fourth limiting slide groove 8. The first cutting assembly 10 includes a third drive motor 101, a third threaded screw 102, a third limiting slider 103 and a first cutting blade 104. The third drive motor 101 is installed inside the installation groove 9. The front output end of the third drive motor 101 is connected to the fourth limiting slide groove 104. The third threaded screw 102 inside the slide groove 8 has threads in opposite directions at both ends of its outer side wall. Both ends of the outer side wall of the third threaded screw 102 are threadedly connected to third limiting sliders 103. A first cutting blade 104 is installed at the bottom of each of the two sets of third limiting sliders 103. By starting the third drive motor 101, the third threaded screw 102 is rotated, causing both sets of third limiting sliders 103 to move inward and outward simultaneously for adjustment. This facilitates the cutting of the soap into long blocks according to processing needs, making subsequent processing easier. Fixed posts 11 are installed at both ends of the top of the support base plate 1 and at the left end of the fixed frame 7. A fifth limiting slide groove 12 is opened on the upper inner side of each of the two sets of fixed posts 11.The two sets of fifth limiting slide grooves 12 share a common second cutting assembly 13. The second cutting assembly 13 includes a fourth drive motor 301, a fourth threaded screw 302, a fourth limiting slider 303, a lifting plate 304, and a second cutting blade 305. Two sets of fourth drive motors 301 are installed on the top of the two sets of fixed columns 11. The bottom output ends of both sets of fourth drive motors 301 are connected to the fourth threaded screw 302 located inside the fifth limiting slide groove 12. The outer walls of both sets of fourth threaded screws 302 are threadedly connected to the fourth limiting sliders 303. The inner sides of both sets of fourth limiting sliders 303 are connected to the lifting plate 304. The bottom of the lifting plate 304 houses the second cutting blade 305. By simultaneously activating the four drive motors 301 to rotate the fourth threaded screw 302, the two sets of fourth limiting sliders 303 can drive the second cutting blade 305 to rise and fall, facilitating automatic cutting of multiple long blocks of soap and effectively improving production efficiency.

[0027] When the cutting device is working, the positioning component 4 firstly starts two sets of first drive motors 401 to drive the rotation of the first threaded screw 402, so that the first limit sliders 403 at the front and rear ends drive the two sets of clamping plates 404 to move inward or outward at the same time, which can perform positioning operations on soaps of different specifications and prevent displacement or falling off during use.

[0028] Next, the second drive motor 601 is started through the pusher assembly 6 to drive the rotation of the second threaded screw 602, so that the second limit slider 603 drives the connecting plate 604 to move left and right for adjustment. This can automatically push the soap to be cut into pieces, avoiding manual operation and making it safer. It can also start the bidirectional hydraulic cylinder 605 to drive the two sets of push plates 606 to adjust inward or outward according to the different sizes of the soap to be cut into pieces, so as to adapt to the push operation. The inner left side of the two sets of push plates 606 are connected to the limit slide rod 608 located inside the third limit slide groove 607, and the limit slide rod 608 is engaged with the inside of the third limit slide groove 607, so that the movement of the push plate 606 is more stable and avoids the phenomenon of deviation.

[0029] Then, through the first cutting component 10, the third drive motor 101 is started to drive the rotation of the third threaded screw 102, so that the two sets of third limit sliders 103 move inward and outward at the same time to adjust, so as to cut the soap to be cut into long blocks according to the processing needs, which is convenient for subsequent processing.

[0030] Finally, the second cutting assembly 13 simultaneously activates the four drive motors 301 to drive the rotation of the fourth threaded screw 302, enabling the two sets of fourth limit sliders 303 to drive the lifting and lowering operation of the second cutting blade 305. This facilitates the automatic cutting of multiple long blocks of soap, effectively improving production efficiency.

[0031] Through the above steps, the first drive motors 401 are simultaneously activated to rotate the first threaded screws 402, causing the first limit sliders 403 at both ends to move the two clamping plates 404 inward or outward simultaneously, enabling positioning of soaps of different specifications. Then, the second drive motor 601 is activated to rotate the second threaded screw 602, causing the second limit slider 603 to move the connecting plate 604 left and right, enabling automatic feeding of the soap to be cut. Next, the third drive motor 101 is activated to rotate the third threaded screw 102, causing the two sets of third limit sliders 103 to move inward or outward simultaneously, facilitating the cutting of the soap into long blocks according to processing needs. Then, the fourth drive motor 301 is activated to rotate the fourth threaded screw 302, causing the two sets of fourth limit sliders 303 to move the second cutting blade 305 up and down, facilitating automatic cutting of multiple long blocks of soap, effectively improving production efficiency, and thus greatly enhancing the ease of use of the entire cutting device.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A soap production cutting device with a positioning structure, comprising a supporting base plate (1); characterized in that: It also includes a support base (2), a first limiting slide groove (3), a positioning component (4), a second limiting slide groove (5), a pushing component (6), a fixing frame (7), a fourth limiting slide groove (8), a mounting groove (9), a first cutting component (10), a fixing column (11), a fifth limiting slide groove (12), and a second cutting component (13). The support base (2) is installed at the four corners of the bottom of the support base plate (1). The first limiting slide groove (3) is opened on the left and right sides of the front and rear ends of the top of the support base plate (1). The lower ends of the first limiting slide groove (3) at the left and right ends are connected through. The positioning component (4) is provided at the upper end of the interior of the first limiting slide groove (3). A horizontal opening is provided at the center of the top of the support base plate (1). The second limiting slide (5) is provided with a pushing component (6) at the upper end of the second limiting slide (5). A fixing frame (7) is installed on the upper left side of the support base plate (1). A fourth limiting slide (8) is opened at the top of the fixing frame (7). An installation groove (9) is opened at the top of the fixing frame (7) and at the rear end of the fourth limiting slide (8). A first cutting component (10) is provided inside the fourth limiting slide (8). Fixing columns (11) are installed at the front and rear ends of the top of the support base plate (1) and at the left end of the fixing frame (7). A fifth limiting slide (12) is opened at the upper inner side of both sets of fixing columns (11). A second cutting component (13) is provided inside both sets of fifth limiting slides (12). The positioning component (4) includes a first drive motor (401), a first threaded screw (402), a first limiting slider (403), and a clamping plate (404). The first drive motor (401) is configured as two sets, which are respectively installed on the left and right ends of the rear side of the support base plate (1). The front output ends of the two sets of first drive motors (401) are connected to the first threaded screw (402) located inside the first limiting slide groove (3) at the left and right ends. The front and rear ends of the outer side walls of the two sets of first threaded screws (402) are provided with threads in opposite directions. The front and rear ends of the outer side walls of the two sets of first threaded screws (402) are threadedly connected to the first limiting slider (403). The clamping plate (404) is installed on the top of the two sets of first limiting sliders (403) at the front end and the top of the two sets of first limiting sliders (403) at the rear end.

2. A soap production cutting device with a positioning structure according to claim 1, characterized in that: The feeding assembly (6) includes a second drive motor (601), a second threaded screw (602), a second limiting slider (603), a connecting plate (604), a two-way hydraulic cylinder (605), a push plate (606), a third limiting groove (607), and a limiting slide rod (608). The second drive motor (601) is installed on the right side of the support base plate (1). The left output end of the second drive motor (601) is connected to the second threaded screw (602) located inside the second limiting groove (5). The outer wall of the second threaded screw (602) is threadedly connected to the second limiting slider (603). The top of the second limiting slider (603) is equipped with a connecting plate (604).

3. A soap production cutting device with a positioning structure according to claim 2, characterized in that: A two-way hydraulic cylinder (605) is provided on the right side of the connecting plate (604), and the output ends of the two-way hydraulic cylinder (605) on both the front and rear sides are connected to push plates (606) through push rods.

4. A soap production cutting device with a positioning structure according to claim 2, characterized in that: The connecting plate (604) has a third limiting slide groove (607) at both the front and rear ends on the left side. The inner left ends of the two sets of push plates (606) are connected to a limiting slide rod (608) located inside the third limiting slide groove (607), and the limiting slide rod (608) is engaged with the inside of the third limiting slide groove (607).

5. A soap production cutting device with a positioning structure according to claim 1, characterized in that: The first cutting assembly (10) includes a third drive motor (101), a third threaded screw (102), a third limiting slider (103), and a first cutting blade (104). The third drive motor (101) is installed inside the mounting groove (9). The front output end of the third drive motor (101) is connected to the third threaded screw (102) located inside the fourth limiting groove (8). The front and rear ends of the outer side wall of the third threaded screw (102) are provided with threads in opposite directions. The front and rear ends of the outer side wall of the third threaded screw (102) are threadedly connected to the third limiting slider (103). The bottom of the two sets of third limiting sliders (103) is provided with the first cutting blade (104).

6. A soap production cutting device with a positioning structure according to claim 1, characterized in that: The second cutting assembly (13) includes a fourth drive motor (301), a fourth threaded screw (302), a fourth limiting slider (303), a lifting plate (304), and a second cutting blade (305). The fourth drive motor (301) is configured as two sets, which are respectively installed on the top of two sets of fixed columns (11). The bottom output ends of the two sets of fourth drive motors (301) are connected to the fourth threaded screw (302) located inside the fifth limiting slide groove (12). The outer walls of the two sets of fourth threaded screws (302) are threadedly connected to the fourth limiting slider (303). The inner sides of the two sets of fourth limiting sliders (303) are connected to the lifting plate (304). The bottom of the lifting plate (304) is provided with the second cutting blade (305).