Cutting machine

Abstract

The utility model relates to the field of leather cutting, in particular to a cutting machine which comprises a body, a plurality of stacked linear moving mechanisms are arranged on the body, any linear moving mechanism comprises a driving source, a transmission roller and a sliding table, the sliding table moves on a working table through transmission of a rack and a gear, the driving source is located in the middle area of the transmission roller, and the driving source is located in the middle area of the transmission roller. The output end of the driving source is connected with the transmission roller, the two ends of the transmission roller and the sliding table are provided with a first driven wheel and a second driven wheel respectively, the first driven wheel and the second driven wheel are in transmission through a belt, and the second driven wheel is synchronously connected with the gear. According to the scheme that the driving source is arranged in the middle and fixed to the synchronous belt, the problem that the two ends of the transmission rollers are not synchronous can be solved, firstly, the driving position of the driving source is changed, the output torque of the driving source directly acts on the middle area of the transmission rollers, and the symmetrical transmission rollers are driven by the driving source to rotate; the two ends of the transmission roller have the same transmission delay, so that the lag phenomenon is avoided; in addition, the synchronous belt is in meshed connection with the synchronous wheel, so that the transmission precision is higher, and the operation deviation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of leather cutting, and more particularly to a cutting machine. Background Technology

[0002] In the field of leather cutting, applications typically refer to the use of efficient tools and techniques to cut and process leather materials. With technological advancements, many new technologies and equipment have been applied to this field, improving production efficiency and cutting precision.

[0003] In actual use, there is a deviation between the cutting position and the position on the electronic control system. Although this deviation is very small, the cutting machine often needs to drive the blade to move on the leather. At this time, the path of the cutting pattern deviates from the original setting. The most obvious thing is that the cut pattern is tilted or even incomplete.

[0004] Research has revealed that the device or component that alters the dimensional changes of the tool holder assembly is composed of multiple linear movement mechanisms superimposed on each other. This superposition means that the drive source can only be positioned on the side of the entire assembly. Coincidentally, the linear movement mechanism uses a transmission roller, and the drive source positioned on the side of the entire assembly can only drive one end of the transmission roller. Therefore, the rotation of the transmission roller is driven by any one end, and this asynchrony causes a lag phenomenon. In other words, there is a transmission delay at the undriven end of the transmission roller, and when the transmission roller stops, the positions of the two ends of the transmission roller are not perfectly aligned. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a cutting machine designed to solve the issue of asynchronous operation at both ends of the transmission rollers.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A cutting machine includes a body with multiple superimposed linear movement mechanisms for driving the movement of a cutter head assembly on a worktable. Each linear movement mechanism includes a drive source, a transmission roller, and a slide. The slide moves on the worktable via a rack and pinion transmission. The drive source is located in the middle region of the transmission roller, and its output end is connected to the transmission roller. A first driven wheel and a second driven wheel are respectively provided at both ends of the transmission roller and on the slide. The first driven wheel and the second driven wheel are connected by a belt drive, wherein the second driven wheel is synchronously connected to a gear.

[0008] The beneficial effects of this utility model are:

[0009] This invention employs a centrally located drive source, which solves the problem of asynchronous operation at both ends of the transmission rollers. First, by changing the driving position of the drive source, the output torque of the drive source acts directly on the middle area of ​​the transmission rollers. Under the action of the drive source, the two ends of the symmetrical transmission rollers have the same transmission delay, thus eliminating the occurrence of lag. In addition, the movement of the slide table on the worktable via rack and pinion gears results in higher transmission precision and reduces operational deviations.

[0010] Specifically, a mounting base connected to the slide table is provided. The mounting base is divided into two parts. The first part is equipped with a bearing, which is sleeved on the aforementioned transmission roller. The drive source is set on the second part of the mounting base. The drive source includes a motor, a drive wheel, a driven wheel, and a belt. The motor is set on the second part. The drive wheel is sleeved on the motor shaft of the motor. The driven wheel is sleeved on the aforementioned transmission roller. The belt is sleeved on the drive wheel and the driven wheel. When the transmission roller rotates, the drive source also moves with the transmission roller.

[0011] Other linear movement mechanisms are mounted on the mounting base, and the cutter head assembly is connected to the output end of the other linear movement mechanisms mentioned above.

[0012] The aforementioned rack and pinion includes a continuous rack, which is distributed on the side of the worktable. The gear and the second driven gear are coaxially connected, and the rack and gear are meshed.

[0013] The slide table is equipped with a slider, and the worktable is equipped with a slide rail. The slider and the slide rail are slidably connected, and with the assistance of the slider and the slide rail, the entire sliding process is smoother.

[0014] In this embodiment, there are two linear movement mechanisms.

[0015] The cutter head assembly includes a cutter holder and a punching portion and a cutting portion disposed on the cutter holder.

[0016] The punching section includes a presser foot, a punching assembly, a first rotary motor, and a cylinder. The cylinder consists of a cavity inside the blade holder and a piston rod, with both ends of the piston rod extending out of the cavity. The punching assembly is located in the blade holder and has a rod and a cutting edge extending out of the blade holder. A pressure plate is provided at the upper end of the piston rod, extending onto the rod. When gas is introduced, the entire piston rod moves longitudinally, driving the pressure plate to apply pressure to the rod, causing the punching assembly to press down within the blade holder. Additionally, a first synchronous sleeve is provided on the blade holder, through which the punching assembly passes. The first rotary motor is located on the blade holder and connected to the first synchronous sleeve via a belt. Under the action of the first rotary motor, the first synchronous sleeve rotates on the blade holder, and the punching assembly rotates continuously in response to the action of the first synchronous sleeve. It is easy to see that the punching process involves a rotational motion, resulting in more precise holes punched into the leather.

[0017] The presser foot is located at the lower end of the piston rod. The presser foot presses down on the leather to prevent it from wrinkling during punching.

[0018] The rod is equipped with a bearing, and the pressure plate has an opening corresponding to the rod. The pressure plate is fitted onto the rod and the bearing through the opening. In this way, while pressing down on the punch assembly, it will not interfere with the rotation of the punch assembly.

[0019] In addition, it also includes a return spring, which is located inside the first synchronizing sleeve and is sleeved on the punch assembly. The return spring abuts against the cap on the rod. Under the action of the return spring, the cap is lifted up, and the cap also drives the entire punch assembly to be lifted up.

[0020] The cutting part includes a second rotary motor and a pneumatic blade. A second synchronous sleeve is fitted on the pneumatic blade. The second synchronous sleeve is located inside the blade holder and can rotate relative to the blade holder. The second rotary motor is located on the blade holder and drives the second synchronous sleeve to rotate via a belt, thereby causing the pneumatic blade to rotate.

[0021] Pneumatic knives are existing technology, so their structure will not be described in detail. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention.

[0023] Figure 2 yes Figure 1 Enlarged diagram of point B.

[0024] Figure 3 yes Figure 1 Enlarged diagram of point A.

[0025] Figure 4 This is a 3D view of one of the linear movement mechanisms.

[0026] Figure 5 yes Figure 4 Enlarged diagram of point C.

[0027] Figure 6 This is a 3D view of the cutter head assembly.

[0028] Figure 7 This is an exploded view of the punching section in the cutter head assembly.

[0029] Figure 8 This is an assembly diagram of the cutting part and the blade holder.

[0030] Figure 9 This is a schematic diagram showing the assembly between the first synchronous pulley and the second synchronous pulley.

[0031] Figure 10 yes Figure 9Enlarged diagram of point D.

[0032] Figure 11 yes Figure 9 A stereoscopic view from another perspective.

[0033] Figure 12 yes Figure 11 Enlarged diagram of point E. Detailed Implementation

[0034] like Figure 1-12 As shown, a cutting machine includes a main body with multiple superimposed linear movement mechanisms for driving the movement of the cutter head assembly 2 on a worktable 1. Each linear movement mechanism includes a drive source, a transmission roller 32, and a slide table 4. The slide table 4 moves on the worktable 1 via a rack and pinion transmission. The drive source is located in the middle region of the transmission roller 32, and its output end is connected to the transmission roller 32. A first driven wheel 32-A and a second driven wheel 4-A are respectively provided at both ends of the transmission roller 32 and on the slide table 4. The first driven wheel 32-A and the second driven wheel 4-A are connected via a belt drive, wherein the second driven wheel 4-A is synchronously connected to a gear.

[0035] The beneficial effects of this utility model are:

[0036] This invention adopts a centrally located drive source, which solves the problem of asynchronous operation at both ends of the transmission roller 32. First, by changing the driving position of the drive source, the output torque of the drive source acts directly on the middle area of ​​the transmission roller 32. Under the action of the drive source, the two ends of the symmetrical transmission roller 32 have the same transmission delay, thus eliminating the occurrence of lag. In addition, the slide table 4 moves on the worktable 1 through the rack and pinion gear, which makes the transmission accuracy higher and reduces the operation deviation.

[0037] Specifically, a mounting base 4 connected to the slide table 4 is also provided. The mounting base 4 is divided into two parts. The first part is provided with a bearing, which is sleeved on the aforementioned transmission roller 32. The drive source is set on the second part of the mounting base 4. The drive source includes a motor 31, a drive wheel 33, a driven wheel 34, and a belt. The motor 31 is set on the second part. The drive wheel 33 is sleeved on the motor shaft of the motor 31. The driven wheel 34 is sleeved on the aforementioned transmission roller 32. The belt is sleeved on the drive wheel 33 and the driven wheel 34. When the transmission roller 32 rotates, the drive source also moves with the transmission roller 32.

[0038] Other linear movement mechanisms are mounted on the mounting base 4, and the cutter head assembly 2 is connected to the output end of the other linear movement mechanisms.

[0039] The aforementioned rack and pinion gear is a continuous rack 5, which is distributed on the side of the workbench 1. The gear 6 and the second driven wheel 4-A are coaxially connected, and the rack 5 and the gear 6 are meshed.

[0040] The slide table 4 is equipped with a slider 41, and the worktable 1 is equipped with a slide rail. The slider 41 and the slide rail are slidably connected. With the assistance of the slider 41 and the slide rail, the entire sliding process is smoother.

[0041] In this embodiment, there are two linear movement mechanisms.

[0042] The cutter head assembly 2 includes a cutter holder 21 and a punching portion and a cutting portion disposed on the cutter holder 21.

[0043] The punching section includes a presser foot 22, a punch assembly, a first rotary motor 27, and a cylinder. The cylinder consists of a cavity inside the tool holder 21 and a piston rod 25. Both ends of the piston rod 25 extend out of the cavity. The punch assembly is disposed in the tool holder 21 and has a rod portion 23-1 and a cutting edge portion 23-2 extending out of the tool holder 21. A pressure plate 24 is provided at the upper end of the piston rod 25, extending onto the rod portion 23-1. When gas is introduced, the entire piston rod 25 moves longitudinally, driving the pressure plate 24 to apply pressure to the rod portion 23-1, causing the punch to be punched. The component presses down in the cutter holder 21. In addition, the cutter holder 21 is provided with a first synchronous sleeve 26. The punching assembly passes through the first synchronous sleeve 26. The first rotary motor 27 is set on the cutter holder 21 and is connected to the first synchronous sleeve 26 via a belt. Under the action of the first rotary motor 27, the first synchronous sleeve 26 rotates on the cutter holder 21. The punching assembly rotates continuously with the action of the first synchronous sleeve 26. It is easy to see that the punching process is accompanied by a rotational action. In this way, the holes punched in the leather are more standard.

[0044] The presser foot 22 is located at the lower end of the piston rod 25. The presser foot 22 has a through hole for the punch assembly to pass through. The presser foot 22 presses down the leather to prevent the leather from wrinkling during punching.

[0045] The rod 23-1 is provided with a bearing, and the pressure plate 24 has an opening corresponding to the rod 23-1. The pressure plate 24 is fitted onto the rod 23-1 and the bearing through the opening. In this way, while pressing down on the punch assembly, it will not interfere with the rotation of the punch assembly.

[0046] In addition, it also includes a return spring 40, which is located inside the first synchronizing sleeve 26 and is sleeved on the punch assembly. The return spring 40 abuts against the cap 23-2 on the rod 23-1. Under the action of the return spring 40, the cap 23-2 is lifted up, and the cap 23-2 also drives the entire punch assembly to be lifted up.

[0047] The cutting part includes a second rotary motor 29 and a pneumatic blade 28. A second synchronous sleeve 30 is fitted on the pneumatic blade 28. The second synchronous sleeve 30 is located inside the blade holder 21 and can rotate relative to the blade holder 21. The second rotary motor 29 is located on the blade holder 21 and drives the second synchronous sleeve 30 to rotate via a belt, thereby driving the pneumatic blade 28 to rotate.

[0048] The pneumatic knife 28 is existing technology, so its structure will not be described in detail.

[0049] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A cutting machine comprising a body, wherein the body is provided with a plurality of superimposed linear movement mechanisms for driving the movement of a cutter head assembly on a worktable, characterized in that, Any linear motion mechanism includes a drive source, a transmission roller, and a slide. The slide moves on the worktable via a rack and pinion transmission. The drive source is located in the middle area of ​​the transmission roller, and the output end of the drive source is connected to the transmission roller. A first driven wheel and a second driven wheel are respectively provided at both ends of the transmission roller and on the slide. The first driven wheel and the second driven wheel are connected by a belt drive. The second driven wheel is synchronously connected to the gear.

2. A cutting machine according to claim 1, characterized in that, It is also provided with a mounting base connected to the slide table. The mounting base is divided into two parts. The first part is provided with a bearing, which is sleeved on the aforementioned transmission roller. The drive source is set on the second part of the mounting base. The drive source includes a motor, a drive wheel, a driven wheel, and a belt. The motor is set on the second part. The drive wheel is sleeved on the motor shaft of the motor, and the driven wheel is sleeved on the aforementioned transmission roller.

3. A cutting machine according to claim 2, characterized in that, It also includes other linear movement mechanisms, which are mounted on the mounting base, and the cutter head assembly is connected to the output end of the other linear movement mechanisms.

4. A cutting machine according to claim 1, characterized in that, It includes a knife holder and a punching and cutting section disposed on the knife holder. The punching section includes a presser foot, a punch assembly, a first rotary motor, and a cylinder. The cylinder consists of a cavity inside the knife holder and a piston rod, with both ends of the piston rod extending out of the cavity. The punch assembly is disposed in the knife holder and has a rod portion and a cutting edge portion extending out of the knife holder. A pressure plate is provided at the upper end of the piston rod, extending onto the rod portion. A first synchronous sleeve is provided on the knife holder, and the punch assembly passes through the first synchronous sleeve. The first rotary motor is disposed on the knife holder and is connected to the first synchronous sleeve via a belt. The presser foot is disposed at the lower end of the piston rod.

5. A cutting machine according to claim 4, characterized in that, The rod is equipped with a bearing, and the pressure plate has an opening corresponding to the rod. The pressure plate is fitted onto the rod and the bearing through the opening.

6. A cutting machine according to claim 4, characterized in that, It also includes a return spring, which is located inside the first synchronizing sleeve and is sleeved on the punch assembly. The return spring abuts against the cap provided on the rod.

7. A cutting machine according to claim 4, characterized in that, The cutting part includes a second rotary motor and a pneumatic blade. A second synchronous sleeve is fitted on the pneumatic blade. The second synchronous sleeve is located inside the blade holder and can rotate relative to the blade holder. The second rotary motor is located on the blade holder and drives the second synchronous sleeve to rotate via a belt, thereby causing the pneumatic blade to rotate.

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