Side-cutting blanking device

Abstract

The utility model relates to the technical field of sewing machines, in particular to a side cutting discharging device which comprises a workbench, a thread trimming mechanism, a sewing mechanism and a discharging mechanism. A first notch is formed in the workbench, a base is arranged in the first notch, and a machine base and a side base are arranged on the two sides of the base respectively; a motor driving mechanism is arranged in the machine base; a sewing mechanism is arranged on one side of the top of the machine base. A thread trimming mechanism is arranged at the bottom of the side, close to the side base, of the machine base. The output end of the motor driving mechanism is connected with the sewing mechanism and the thread trimming mechanism through the transmission assembly, and the motor driving mechanism can drive the sewing mechanism and the thread trimming mechanism to operate automatically through the transmission assembly. A second notch is further formed in the workbench, and the workbench is connected with a discharging mechanism used for recycling cloth through the second notch. According to the thread trimming mechanism, mechanical transmission is replaced by motor driving, and the structure is simpler; according to the discharging mechanism, redundant cloth can be cleaned and collected during processing.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, and particularly relates to a side cutting and blanking device. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on a sewing material, so as to interweave or sew together one or more layers of sewing materials. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and artificial fibers, as well as products such as leather, plastic, and paper.

[0003] At present, most sewing machines on the market do not have a thread cutting function, and scissors need to be used manually for thread cutting, resulting in low work efficiency and low safety. Although a few sewing machines have a thread cutting function, such as the last attaching machine with a thread cutting device disclosed in CN205839322U, the thread cutting device structure recorded therein is complex, and the set position is prone to collision with other devices and is also easy to block the line of sight, with relatively low safety; in addition, most existing sewing machines with a thread cutting function require manual control of the sewing machine for thread cutting, and the mechanical structure involved in the thread cutting mechanism of the sewing machine is relatively complex, resulting in a large amount of manpower required to drive, low efficiency, and a large load on the human body after a long working time; and when encountering relatively complex sewing work, it is difficult for manual workers to take into account both sewing and thread cutting work at the same time, and both efficiency and accuracy will be reduced, resulting in a decline in product quality.

[0004] Moreover, most existing sewing machines cannot collect waste materials synchronously during sewing work, resulting in a large amount of fabric waste often accumulating on the workbench, affecting the sewing efficiency of workers, and requiring manual cleaning after sewing, which is time-consuming and laborious; for example, an electric sewing machine disclosed in CN101314899A has a structure similar to that of existing electric sewing machines and lacks a blanking and cleaning mechanism. Although it can improve the processing efficiency of the sewing machine, it still takes a certain amount of time and effort to clean the waste materials after work.

[0005] Furthermore, most of the presser feet on the market at present rely on manpower, and then cooperate with a complex mechanical structure to transmit the driving effect to the presser foot to lift it. However, due to more power loss during the transmission of the mechanical structure, the transmission efficiency is relatively low, which requires manual workers to apply more force to hold down the switch. Since most of the existing driving methods for presser feet rely on the human knee to squeeze the lifter, if too much manpower is consumed, not only the sewing efficiency is low, but also the knee is easily damaged after a long time, affecting the health and safety of workers. For example, a presser foot adjustment mechanism of a roller car disclosed in CN211142406U can only be manually adjusted by workers and does not have an automatic adjustment function, with low work efficiency for lifting the presser foot and requiring a large amount of manpower to drive the presser foot to lift.

[0006] In view of the problems existing in the prior art, there is an urgent need for a side cutting and blanking device, which can further improve the working efficiency of the sewing machine and reduce the working intensity of the staff at the same time. Summary of the Invention

[0007] To solve the problems existing in the prior art, the present invention provides a side cutting and blanking device. The side cutting and blanking device of the present application has a motor drive mechanism, which replaces manual labor with a motor, reduces the manual input, improves the control accuracy, and further saves the processing cost by replacing the complex transmission mechanical structure with a motor; the present application can further improve the thread cutting efficiency to improve the product quality and further ensure the safety of the staff; at the same time, since the thread cutting mechanism of the present application is driven by electricity instead of mechanically, the linkage structure can be more simple; the present application can clean and collect the redundant cloth during processing through the blanking mechanism, which can increase the material utilization rate and prevent the workbench from accumulating too much waste material, affecting the working efficiency of the staff; the present application can also control the presser foot lifting by replacing manual labor with a motor, and transmit the electrical signal through the electronic control module instead of the complex mechanical structure to transmit the power, so it can reduce the manual input and avoid power loss. It can not only improve the working efficiency of the presser foot lifting, but also reduce the force required for the worker to push against the lifter with the knee, further protecting the worker's knee from injury.

[0008] To achieve the above object, the present invention provides a side cutting and blanking device, including a workbench, a thread cutting mechanism, a sewing mechanism, and a blanking mechanism;

[0009] A first notch is opened on the workbench, a base is arranged in the first notch, and a machine base and a side base are respectively arranged on both sides of the base; a motor drive mechanism is arranged in the machine base; a sewing mechanism is arranged on one side of the top of the machine base; a thread cutting mechanism is arranged at the bottom of the machine base close to the side base; the output end of the motor drive mechanism is respectively connected to the sewing mechanism and the thread cutting mechanism through a transmission component, and the motor drive mechanism can drive the sewing mechanism and the thread cutting mechanism to run automatically through the transmission component;

[0010] A second notch is further opened on the workbench, and the workbench is connected to a blanking mechanism for recycling cloth through the second notch.

[0011] Preferably, the transmission component includes a main shaft, a tape cutting drive cam is arranged at a position close to the middle of the main shaft, a cam connecting rod is connected to one side of the tape cutting drive cam, and a connecting rod limit baffle is connected to the side of the cam connecting rod away from the drive cam;

[0012] A connecting pin is inserted through one end of the cam link that is away from the main shaft, and power conversion links are provided at both ends of the connecting pin. A power conversion seat is fixedly provided between the power conversion links at both ends of the connecting pin; a transmission link is connected to one side of the power conversion link at one end of the connecting pin; the transmission assembly is connected to the thread cutting mechanism through the transmission link.

[0013] Preferably, a rotating member is provided at one end of the main shaft, and one end of the rotating member is connected to the sewing mechanism. When the rotating member rotates, it can drive the sewing mechanism to work synchronously.

[0014] Preferably, the sewing mechanism includes a needle bar base, a needle bar, a needle bar link, and a sewing needle;

[0015] A countershaft is provided below the main shaft, and a needle bar base is provided at one end of the countershaft; a needle bar is inserted through the needle bar base; a needle bar link is connected to one side of the rotating member, and one end of the needle bar link away from the rotating member is connected to a joint, and the joint is fixedly connected to the body of the needle bar; a sewing needle is provided at the bottom of the needle bar; the upper top surface and the lower bottom surface inside the needle bar base can both limit the joint.

[0016] Preferably, a needle plate piece is provided on one side of the side seat close to the sewing mechanism, a needle groove is provided on the needle plate piece, and the sewing needle can be inserted into the needle groove.

[0017] Preferably, the thread cutting mechanism includes a tool holder, a tool holder positioning shaft, a tool holder guiding shaft, a tool holder seat, a cutter arm, and a cutter;

[0018] One end of the transmission link away from the power conversion link is connected to the tool holder. A tool holder guiding shaft is inserted through the tool holder. The tool holder is connected to the tool holder seat through the tool holder guiding shaft. A U-shaped groove is provided on one side of the tool holder. A tool holder positioning shaft is provided in the U-shaped groove. One end of the tool holder positioning shaft is connected to the tool holder seat; a cutter arm is provided on one side of the tool holder, and a cutter is provided on the cutter arm.

[0019] Preferably, the blanking mechanism includes a blanking plate and a collection box;

[0020] The blanking plate is inserted through the second notch, and one end of the blanking plate abuts against the side seat. The other end of the blanking plate faces the collection box; the collection box is connected to the workbench through a reinforcement plate.

[0021] Preferably, the workbench includes a table board, a telescopic support assembly, feet, fixed foot cups, and universal wheels;

[0022] Telescopic support assemblies for changing the height of the workbench are symmetrically provided at the bottom of the table board. Feet are provided at the ends of the telescopic support assemblies away from the table board. A plurality of fixed foot cups are provided on the feet, and universal wheels are provided at both ends of the feet.

[0023] Preferably, the telescopic support assembly includes a first support and a second support that are symmetrically arranged; it also includes a tightening handle, a first knob, and a second knob;

[0024] The first support is located inside the second support, and the first support can slide along the height direction of the second support. A tightening handle, a first knob, and a second knob for adjusting the tightness are provided between the first support and the second support. A reinforcing rib for enhancing the structural strength is provided between the symmetrically arranged second supports.

[0025] Preferably, a presser foot lifting mechanism is further provided inside the machine base. A presser foot wrench for opening or closing the presser foot lifting mechanism is provided outside the machine base. The presser foot wrench is connected to the presser foot lifting mechanism through a wrench shaft, and the presser foot lifting mechanism is connected to the roller mechanism through a connecting plate.

[0026] The utility model has the following beneficial effects compared with the prior art:

[0027] The utility model provides a side cutting and blanking device. The side cutting and blanking device of the present application has a motor drive mechanism. By using a motor instead of manual labor, the manual input is reduced, the control accuracy is improved, and by using a motor instead of a complex transmission mechanical structure, the processing cost is further saved; the present application can further improve the wire cutting efficiency to improve the product quality and further ensure the safety of the staff; at the same time, since the wire cutting mechanism of the present application is driven by electricity instead of mechanically, the linkage structure can be more simple; the present application can clean and collect the redundant fabric during processing through the blanking mechanism, increasing the material utilization rate and preventing the workbench from being piled up with too much waste, which affects the work efficiency of the staff; the present application can also use a motor to control the presser foot instead of manual labor, and transmit electrical signals through the electronic control module instead of a complex mechanical structure to transmit power. Therefore, the manual input can be reduced and the power loss can be avoided. It can not only improve the work efficiency of the presser foot, but also reduce the force required for the worker to push against the lifter with the knee, further protecting the worker's knee from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of a side cutting and blanking device of the present utility model;

[0030] Figure 2 One of the three-dimensional structure diagrams of the thread cutting mechanism, sewing mechanism and transmission component of the present utility model;

[0031] Figure 3 Another three-dimensional structure diagram of the thread cutting mechanism, sewing mechanism and transmission component of the present utility model;

[0032] Figure 4 Three-dimensional structure diagram of the thread cutting mechanism and transmission component of the present utility model;

[0033] Figure 5 Three-dimensional structure diagram of the sewing mechanism and transmission component of the present utility model;

[0034] Figure 6 Three-dimensional structure diagram of the workbench and blanking mechanism of the present utility model;

[0035] Among them, as shown in the figure: workbench 1, first notch 11, base 12, machine base 13, side base 14, needle plate piece 141, needle groove 142, second notch 15, table board 16, telescopic support assembly 17, first support 171, second support 172; also including a tensioning handle 173, first knob 174, second knob 175, reinforcing rib 176, support feet 18, fixed foot cups 19, thread cutting mechanism 2, tool rest 21, tool rest positioning shaft 22, tool rest guiding shaft 23, tool rest seat 24, cutter arm 25, cutter 26, sewing mechanism 3, needle bar seat 31, needle bar 32, needle bar connecting rod 33, sewing needle 34, joint 35, blanking mechanism 4, blanking plate 41, collection box 42, reinforcement plate 43, transmission component 5, main shaft 51, tape cutting drive cam 52, cam connecting rod 53, connecting rod limit baffle 54, connecting pin 55, power conversion connecting rod 56, power conversion seat 57, transmission connecting rod 58, rotating member 59, auxiliary shaft 510, presser foot lifter wrench 6, roller mechanism 7. Specific embodiments

[0036] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0037] Embodiment 1

[0038] As shown in Figure 1 the figure, this embodiment proposes a side cutting and blanking device, which includes a workbench 1, a thread cutting mechanism 2, a sewing mechanism 3, and a blanking mechanism 4; a first notch 11 is opened on the workbench 1, a base 12 is arranged in the first notch 11, and a machine base 13 and a side base 14 are respectively arranged on both sides of the base 12; a motor driving mechanism is arranged in the machine base 13; a sewing mechanism 3 is arranged on one side of the top of the machine base 13; a thread cutting mechanism 2 is arranged at the bottom of the machine base 13 close to the side base 14; the output end of the motor driving mechanism is respectively connected to the sewing mechanism 3 and the thread cutting mechanism 2 through a transmission assembly 5, and the motor driving mechanism can drive the sewing mechanism 3 and the thread cutting mechanism 2 to operate automatically through the transmission assembly 5; a second notch 15 is also opened on the workbench 1, and the workbench 1 is connected to a blanking mechanism 4 for recycling fabrics through the second notch 15.

[0039] As shown in Figure 1-4 the figure, the transmission assembly 5 includes a main shaft 51, a tape cutting driving cam 52 is arranged at a position close to the middle of the main shaft 51, a cam connecting rod 53 is connected to one side of the tape cutting driving cam 52, and a connecting rod limit baffle 54 is connected to the side of the cam connecting rod 53 away from the driving cam 52; a connecting pin 55 is penetrated through one end of the cam connecting rod 53 away from the main shaft 51, and power conversion connecting rods 56 are arranged at both ends of the connecting pin 55, and a power conversion seat 57 is fixedly arranged between the power conversion connecting rods 56 at both ends of the connecting pin; a transmission connecting rod 58 is connected to one side of the power conversion connecting rod 56 at one end of the connecting pin; the transmission assembly 5 is connected to the thread cutting mechanism 2 through the transmission connecting rod 58.

[0040] As shown in Figure 2-5 the figure, a rotating member 59 is arranged at one end of the main shaft 51, one end of the rotating member 59 is connected to the sewing mechanism 3, and when the rotating member 59 rotates, it can drive the sewing mechanism 3 to work synchronously.

[0041] As shown in Figure 1-3 And Figure 5 the figure, the sewing mechanism 3 includes a needle bar seat 31, a needle bar 32, a needle bar connecting rod 33, and a machine needle 34; a sub-shaft 510 is arranged below the main shaft 51, and a needle bar seat 31 is arranged at one end of the sub-shaft 510; a needle bar 32 is penetrated through the needle bar seat 31; a needle bar connecting rod 33 is connected to one side of the rotating member 59, and one end of the needle bar connecting rod 33 away from the rotating member 59 is connected to a joint 35, and the joint 35 is fixedly connected to the rod body of the needle bar 32; a machine needle 34 is arranged at the bottom of the needle bar 32; the upper top surface and the lower bottom surface inside the needle bar seat 31 can both play a role in limiting the joint 35.

[0042] As shown in Figure 3As shown, on one side of the side base 14 close to the sewing mechanism 3, there is a needle plate piece 141. A needle groove 142 is formed on the needle plate piece 141, and the sewing needle 34 can be inserted into the needle groove 142.

[0043] As Figure 1-4 shown, the thread cutting mechanism 2 includes a tool rest 21, a tool rest positioning shaft 22, a tool rest guiding shaft 23, a tool rest seat 24, a cutter arm 25, and a cutter 26. One end of the transmission connecting rod 58 away from the power conversion connecting rod 56 is connected to the tool rest 21. The tool rest guiding shaft 23 is passed through the tool rest 21, and the tool rest 21 is connected to the tool rest seat 24 through the tool rest guiding shaft 23. A U-shaped groove is provided on one side of the tool rest 21, and the tool rest positioning shaft 22 is arranged in the U-shaped groove. One end of the tool rest positioning shaft 22 is connected to the tool rest seat 24. A cutter arm 25 is provided on one side of the tool rest 21, and a cutter 26 is arranged on the cutter arm 25.

[0044] As Figure 1 , Figure 6 shown, the blanking mechanism 4 includes a blanking plate 41 and a collection box 42. The blanking plate 41 passes through the second notch 15, and one end of the blanking plate 41 abuts against the side base 14. The other end of the blanking plate 41 faces the collection box 42. The collection box 42 is connected to the workbench 1 through a reinforcing plate 43.

[0045] As Figure 6 shown, the workbench 1 includes a table board 16, a telescopic support assembly 17, support feet 18, fixed foot cups 19, and universal wheels. Symmetrically arranged at the bottom of the table board 16 are telescopic support assemblies 17 for changing the height of the workbench 1. One end of the telescopic support assembly 17 away from the table board 16 is provided with support feet 18. A plurality of fixed foot cups 19 are arranged on the support feet 18, and universal wheels are arranged at both ends of the support feet 18.

[0046] The telescopic support assembly 17 includes symmetrically arranged first brackets 171 and second brackets 172. It also includes a tightening handle 173, a first knob 174, and a second knob 175. The first bracket 171 is located inside the second bracket 172 and can slide along the height direction of the second bracket 172. A tightening handle 173, a first knob 174 for adjusting the tightness, and a second knob 175 are arranged between the first bracket 171 and the second bracket 172. A reinforcing rib 176 for enhancing the structural strength is arranged between the symmetrically arranged second brackets 172.

[0047] As Figure 1 shown, a presser foot lifting mechanism is also arranged inside the machine base 13. A presser foot lifting wrench 6 for opening or closing the presser foot lifting mechanism is arranged outside the machine base 13. The presser foot lifting wrench 6 is connected to the presser foot lifting mechanism through a wrench shaft, and the presser foot lifting mechanism is connected to the roller mechanism 7 through a connecting plate.

[0048] This embodiment provides a side cutting and blanking device. The side cutting and blanking device of this embodiment has a motor drive mechanism. By using a motor instead of manual labor, it reduces the manual input, improves the control accuracy, and further saves the processing cost by replacing complex transmission mechanical structures with a motor. This application can further improve the wire cutting efficiency of the wire cutting mechanism 2 to improve product quality and further ensure the safety of the staff. At the same time, since the wire cutting mechanism 2 of this application uses electric drive instead of mechanical drive, the linkage structure can be more simple. This application can, through the blanking mechanism 4, synchronously clean and collect the excess fabric during processing. While increasing the material utilization rate, it can also prevent excessive waste from accumulating on the workbench 1 and affecting the work efficiency of the staff. This application can also use a motor to control the lifting and pressing of the foot instead of manual labor, and transmit electrical signals through the electronic control module instead of complex mechanical structures to transmit power. Therefore, it can reduce the manual input and avoid power loss. It can not only improve the work efficiency of the lifting and pressing of the foot, but also reduce the force required for the worker to push against the lifting rod with the knee, further protecting the worker's knee from injury.

[0049] Certainly, the above are only specific embodiments of the present invention and do not limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structures, features, and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

[0050] Finally, it should be noted that the above embodiments are only specific implementation manners of the present invention, used to illustrate the technical solutions of the present invention, and are not intended to limit it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions described in the foregoing embodiments or can easily think of changes, or make equivalent replacements for some of the technical features; and these modifications, changes, or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A side cutting device, characterized in that: It comprises a workbench (1), a thread cutting mechanism (2), a sewing mechanism (3), and a material unloading mechanism (4); The workbench (1) is provided with a first notch (11), a base (12) is provided in the first notch (11), and a machine base (13) and a side base (14) are provided on both sides of the base (12); a motor drive mechanism is provided in the machine base (13); a sewing mechanism (3) is provided on one side of the top of the machine base (13); a thread trimming mechanism (2) is provided on the bottom of the machine base (13) near the side base (14); the output end of the motor drive mechanism is respectively connected to the sewing mechanism (3) and the thread trimming mechanism (2) through a transmission assembly (5), and the motor drive mechanism can drive the sewing mechanism (3) and the thread trimming mechanism (2) to automatically operate through the transmission assembly (5); The workbench (1) is also provided with a second notch (15), and the workbench (1) is connected to a material discharge mechanism (4) for recovering cloth via the second notch (15).

2. A side cutting device according to claim 1, characterized in that: The transmission assembly (5) comprises a main shaft (51), a belt cutting driving cam (52) is provided near the middle of the main shaft (51), a cam connecting rod (53) is connected to one side of the belt cutting driving cam (52), and a connecting rod limiting baffle (54) is connected to the side of the cam connecting rod (53) away from the driving cam (52); A connecting pin (55) is passed through one end of the cam connecting rod (53) away from the main shaft (51), and power conversion connecting rods (56) are provided at both ends of the connecting pin (55), and a power conversion seat (57) is fixed between the power conversion connecting rods (56) at both ends of the connecting pin; a transmission connecting rod (58) is connected to one side of the power conversion connecting rod (56) at one end of the connecting pin; and the transmission assembly (5) is connected to the thread trimming mechanism (2) via the transmission connecting rod (58).

3. A side cutting device according to claim 2, characterized in that: A rotating member (59) is provided at one end of the main shaft (51), one end of the rotating member (59) is connected to the sewing mechanism (3), and when the rotating member (59) rotates, it can synchronously drive the sewing mechanism (3) to work.

4. A side cutting device according to claim 3, characterized in that: The sewing mechanism (3) comprises a needle bar seat (31), a needle bar (32), a needle bar connecting rod (33), and a sewing needle (34); A secondary shaft (510) is provided below the main shaft (51), and a needle bar seat (31) is provided at one end of the secondary shaft (510); a needle bar (32) is inserted into the needle bar seat (31); a needle bar connecting rod (33) is connected to one side of the rotating member (59), and a joint (35) is connected to the end of the needle bar connecting rod (33) away from the rotating member (59), and the joint (35) is fixedly connected to the rod body of the needle bar (32); a machine needle (34) is provided at the bottom of the needle bar (32); the upper top surface and the lower bottom surface on the inner side of the needle bar seat (31) can both limit the joint (35).

5. A side cutting device according to claim 4, characterized in that: A needle plate (141) is provided on the side of the side seat (14) close to the sewing mechanism (3), and a needle groove (142) is provided on the needle plate (141), and the machine needle (34) can be inserted into the needle groove (142).

6. A side cutting device according to claim 2, characterized in that: The thread cutting mechanism (2) comprises a knife frame (21), a knife frame positioning shaft (22), a knife frame guide shaft (23), a knife frame seat (24), a cutting arm (25), and a cutting knife (26); One end of the transmission connecting rod (58) away from the power conversion connecting rod (56) is connected to the tool holder (21); a tool holder guide shaft (23) is passed through the tool holder (21); the tool holder (21) is connected to the tool holder seat (24) via the tool holder guide shaft (23); a U-shaped groove is provided on one side of the tool holder (21); a tool holder positioning shaft (22) is provided in the U-shaped groove; one end of the tool holder positioning shaft (22) is connected to the tool holder seat (24); a cutter arm (25) is provided on one side of the tool holder (21); a cutter (26) is provided on the cutter arm (25).

7. The side cutting device according to claim 1, characterized in that: The unloading mechanism (4) comprises an unloading plate (41) and a collecting box (42); The blanking plate (41) is inserted into the second slot (15), and one end of the blanking plate (41) is in contact with the side seat (14), while the other end of the blanking plate (41) faces the collection box (42); the collection box (42) is connected to the workbench (1) via a reinforcing plate (43).

8. The side cutting device according to claim 1, characterized in that: The workbench (1) comprises a tabletop (16), a telescopic bracket assembly (17), a support leg (18), a fixed foot cup (19), and a universal wheel; A telescopic support assembly (17) for changing the height of the workbench (1) is symmetrically arranged at the bottom of the table (16); a support foot (18) is arranged at one end of the telescopic support assembly (17) away from the table (16); a plurality of fixed foot cups (19) are arranged on the support foot (18); and universal wheels are arranged at both ends of the support foot (18).

9. A side cutting device according to claim 8, characterized in that: The telescopic support assembly (17) comprises a first support (171) and a second support (172) which are symmetrically arranged; and also comprises an elastic handle (173), a first knob (174), and a second knob (175); The first bracket (171) is located inside the second bracket (172), and the first bracket (171) can slide along the height direction of the second bracket (172). A tension handle (173) and a first knob (174) and a second knob (175) for adjusting the tension are provided between the first bracket (171) and the second bracket (172). A reinforcing rib (176) for improving the structural strength is provided between the symmetrically arranged second brackets (172).

10. The side cutting device according to claim 1, characterized in that: A presser foot lifting mechanism is also provided in the machine base (13), and a presser foot lifting wrench (6) for opening or closing the presser foot lifting mechanism is provided outside the machine base (13); the presser foot lifting wrench (6) is connected to the presser foot lifting mechanism via a wrench shaft, and the presser foot lifting mechanism is connected to the roller mechanism (7) via a connecting plate.

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