Fixed-length belt cutting device
By using a fixed-length cutting device that moves the cutter and gripper synchronously, the problem of poor cutter lifting stability is solved, thus improving the flatness of the cut on strip materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, the cutting blade has a large lifting stroke, resulting in poor lifting stability and affecting the flatness of the cut on the strip material.
The cutter is mounted on the gripper moving mechanism of the fixed-length module, so that it moves synchronously with the gripper. It only needs to avoid the fixed gripper, shortening the lifting stroke and improving the lifting stability of the cutter.
By shortening the lifting stroke of the cutter, the smoothness of the cut on the strip material is improved.
Smart Images
Figure CN224074473U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewing, and in particular to a fixed-length tape cutting device. Background Technology
[0002] In the field of fabric sewing, it is often necessary to sew strip-shaped materials onto sheet-shaped materials, such as sewing handles onto tote bags or shoe straps onto shoe uppers. During the sewing process, a gripper is used to pull the strip-shaped material from a reel to a predetermined length, and then a cutter is used to cut the pulled-out strip-shaped material. The gripper is generally driven by a moving mechanism to move relative to the reel; the cutter is generally driven by a lifting mechanism to rise and fall relative to the pulled-out strip-shaped material.
[0003] Before the moving mechanism drives the gripper to move, the lifting mechanism needs to raise the cutter to a sufficient height to avoid interference between the cutter and the moving gripper and the moving mechanism. A large lifting stroke will reduce the lifting stability of the cutter, aggravate the lifting sway of the cutter, and ultimately affect the flatness of the cut on the strip material. Utility Model Content
[0004] To address the shortcomings of the prior art, this utility model provides a fixed-length cutting device that can reduce the lifting stroke of the cutter to improve the lifting stability of the cutter, thereby improving the flatness of the cut on the strip material.
[0005] The technical problem to be solved by this utility model is achieved through the following technical solution:
[0006] A fixed-length tape cutting device includes a frame and a fixed-length module and a tape cutting module mounted on the frame.
[0007] The fixed-length module includes a movable gripper, a fixed gripper, and a gripper moving mechanism. The movable gripper and the fixed gripper are arranged opposite each other, and the fixed gripper is fixedly mounted on the frame. The movable gripper is mounted on the frame through the gripper moving mechanism, so as to move back and forth under the drive of the gripper moving mechanism, thereby moving closer to or away from the fixed gripper.
[0008] The slicing module includes a cutter and a first lifting mechanism. The first lifting mechanism is connected to drive the cutter to move up and down. When the first lifting mechanism drives the cutter to rise, the cutter is higher than the fixed gripper.
[0009] The cutter and the first lifting mechanism are mounted on the moving gripper mechanism to move synchronously with the moving gripper; the cutter is located between the moving gripper and the fixed gripper.
[0010] Furthermore, when the gripper moving mechanism moves the movable gripper to a side close to the fixed gripper, and the first lifting mechanism raises the cutter, the cutter is positioned above the fixed gripper.
[0011] Furthermore, the first lifting mechanism is also mounted on the gripper moving mechanism so as to move synchronously with the moving gripper.
[0012] Furthermore, the gripper moving mechanism includes a movable support, the movable gripper is disposed on the side of the movable support away from the fixed gripper, and the cutter is disposed on the side of the movable support close to the fixed gripper.
[0013] Furthermore, the gripper moving mechanism also includes a moving driver and a moving transmission assembly. The moving driver is connected to the moving bracket through the moving transmission assembly, thereby driving the moving bracket to move the moving gripper and the cutter synchronously.
[0014] Furthermore, the motion driver is a servo motor or a stepper motor, and the motion transmission assembly is a belt drive assembly or a lead screw drive assembly.
[0015] Furthermore, the cutting module also includes a blade holder, with the cutter positioned vertically above and below the blade holder; when the gripper moving mechanism moves the cutter to a side away from the fixed gripper, the cutter aligns with the blade holder, and when the first lifting mechanism lowers the cutter, the cutter abuts against the blade holder.
[0016] Furthermore, the tool stage is an ultrasonic tool stage.
[0017] Furthermore, the blade holder is fixedly mounted on the frame. When the first lifting mechanism lowers the blade, the blade is lower than the fixed gripper, thereby abutting against the blade holder.
[0018] Furthermore, the cutting module also includes a second lifting mechanism, which is connected to drive the blade holder to move up and down; when the first lifting mechanism drives the cutter to descend and the second lifting mechanism drives the blade holder to rise, the cutter is lower than the fixed gripper or at the same height as the fixed gripper, thereby abutting against the blade holder.
[0019] This invention has the following advantages: The fixed-length cutting device of this invention sets the cutter on the gripper moving mechanism of the fixed-length module. In this way, when the moving gripper pulls the strip material out of the material tray, the cutter can move synchronously with the moving gripper without having to avoid the moving gripper and gripper moving mechanism. It only needs to avoid the fixed gripper. Since the position of the fixed gripper is fixed and there is no corresponding moving mechanism, the avoidance range of the cutter is small. The lifting mechanism only needs to raise the cutter to a position higher than the fixed gripper. Therefore, the lifting stroke of the cutter can be shortened, thereby improving the lifting stability of the cutter and ultimately improving the flatness of the cut on the strip material. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the fixed-length cutting device provided by this utility model.
[0021] Figure 2 A schematic diagram of the moving gripper, gripper moving mechanism, cutter and first lifting mechanism in the fixed-length cutting device provided by this utility model. Detailed Implementation
[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings. Throughout the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0023] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] Example 1
[0027] like Figure 1 As shown, a fixed-length cutting device includes a frame 10 and a fixed-length module 20 and a cutting module 30 disposed on the frame 10.
[0028] The fixed-length module 20 includes a movable gripper 21, a fixed gripper 22, and a gripper moving mechanism 23. The movable gripper 21 and the fixed gripper 22 are arranged opposite each other, and the fixed gripper 22 is fixedly mounted on the frame 10. The movable gripper 21 is mounted on the frame 10 through the gripper moving mechanism 23, so that it can move back and forth under the drive of the gripper moving mechanism 23, thereby moving closer to or away from the fixed gripper 22.
[0029] The slicing module 30 includes a cutter 31 and a first lifting mechanism 32. The first lifting mechanism 32 drives the cutter 31 to rise and fall. When the first lifting mechanism 32 drives the cutter 31 to rise, the cutter 31 is higher than the fixed gripper 22.
[0030] The cutter 31 and the first lifting mechanism 32 are mounted on the gripper moving mechanism 23 so as to move synchronously with the moving gripper 21; the cutter 31 is located between the moving gripper 21 and the fixed gripper 22.
[0031] The fixed-length cutting device of this utility model sets the cutter 31 on the gripper moving mechanism 23 of the fixed-length module 20. In this way, when the moving gripper 21 pulls the strip material a out of the material tray, the cutter 31 can move synchronously with the moving gripper 21 without having to avoid the moving gripper 21 and the gripper moving mechanism 23. It only needs to avoid the fixed gripper 22. Since the fixed gripper 22 is fixed in position and has no corresponding moving mechanism, the avoidance range of the cutter 31 is small. The first lifting mechanism 32 only needs to raise the cutter 31 to a position higher than the fixed gripper 22. Therefore, the lifting stroke of the cutter 31 can be shortened, thereby improving the lifting stability of the cutter 31 and ultimately improving the flatness of the cut on the strip material a.
[0032] During operation, after the machine is powered on and initialized, the first lifting mechanism 32 raises the cutter 31, and the gripper moving mechanism 23 moves the movable gripper 21 to a side away from the fixed gripper 22. The operator first pulls the head of the strip material a from the tray and places it into the movable gripper 21. Then, the movable gripper 21 grips the head of the strip material a tightly. The first lifting mechanism 32 lowers the cutter 31 so that the cutter 31 cuts the head of the strip material a flat, and then raises the cutter 31 again. Next, the gripper moving mechanism 23 moves the movable gripper 21 closer to... The fixed gripper 22 pulls the strip material a from the tray and feeds the head of the strip material a into the fixed gripper 22. The fixed gripper 22 then grips the head of the strip material a, and the moving gripper 21 releases the head of the strip material a. Then, the gripper moving mechanism 23 drives the moving gripper 21 to move away from the fixed gripper 22. The moving gripper 21 then grips the pulled-out strip material a. Finally, the first lifting mechanism 32 drives the cutter 31 to descend so that the cutter 31 cuts the pulled-out strip material a, and then drives the cutter 31 to rise again.
[0033] Preferably, when the gripper moving mechanism 23 moves the movable gripper 21 to a side close to the fixed gripper 22, and the first lifting mechanism 32 lifts the cutter 31, the cutter 31 is located above the fixed gripper 22.
[0034] In order to reduce the load on the gripper moving mechanism 23, the first lifting mechanism 32 is preferably a drive cylinder, so as to directly drive the cutter 31 to lift and lower.
[0035] like Figure 2 As shown, the gripper moving mechanism 23 includes a moving bracket 231, a moving driver 232, and a moving transmission assembly 233. The moving driver 232 is connected to the moving bracket 231 through the moving transmission assembly 233, so as to drive the moving bracket 231 to move back and forth through the transmission action of the moving transmission assembly 233. The moving gripper 21 is disposed on the side of the moving bracket 231 away from the fixed gripper 22, and the cutter 31 (and the first lifting mechanism 32) is disposed on the side of the moving bracket 231 close to the fixed gripper 22, so that the moving bracket 231 can drive the moving gripper 21 and the cutter 31 (and the first lifting mechanism 32) to move synchronously under the drive of the moving driver 232.
[0036] The mobile driver 232 may be, but is not limited to, a servo motor or a stepper motor, and the mobile transmission assembly 233 may be, but is not limited to, a belt drive assembly or a lead screw drive assembly.
[0037] Preferably, the cutting module 30 further includes a blade holder 33, with the cutter 31 positioned vertically above the blade holder 33. When the gripper moving mechanism 23 moves the cutter 31 to a side away from the fixed gripper 22, the cutter 31 aligns with the blade holder 33. When the first lifting mechanism 32 lowers the cutter 31, the cutter 31 abuts against the blade holder 33, thereby cutting the strip material a located on the blade holder 33.
[0038] In some examples, the blade holder 33 is fixedly mounted on the frame 10. In this case, when the first lifting mechanism 32 drives the cutter 31 to descend, the cutter 31 is lower than the fixed gripper 22, thereby abutting against the blade holder 33.
[0039] In some examples, the slicing module 30 further includes a second lifting mechanism 34, which is connected to drive the blade holder 33 to rise and fall. When the first lifting mechanism 32 drives the cutter 31 to fall, the cutter 31 can be lower than the fixed gripper 22 or at the same height as the fixed gripper 22, and cooperate with the second lifting mechanism 34 to drive the blade holder 33 to rise, thereby abutting against the blade holder 33.
[0040] Preferably, the cutting station 33 is an ultrasonic cutting station, which uses ultrasonic vibration to cut the strip material a in conjunction with the cutting blade 31, thereby improving the cutting efficiency.
[0041] In this embodiment, the second lifting mechanism 34 is preferably a drive cylinder, so as to directly drive the tool holder 33 to lift and lower.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present utility model, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the present utility model.
Claims
1. A cut-to-length belt apparatus, characterized by, The machine frame, the fixed jaw, the movable jaw, the first lifting mechanism, the second lifting mechanism, the cutter and the cutter table are arranged in the machine frame. The fixed jaw is arranged on the machine frame. The movable jaw is arranged on the machine frame and is driven by the jaw moving mechanism to move forward and backward. The first lifting mechanism is connected to the cutter to drive the cutter to move up and down.
2. The fixed-length cut strip apparatus of claim 1, wherein, The cutter is arranged on the jaw moving mechanism and moves synchronously with the movable jaw.
3. The fixed-length cut tape device of claim 1, wherein, The cutter is arranged between the movable jaw and the fixed jaw.
4. The fixed-length cut tape device of claim 3, wherein, The cutter is arranged on the side of the moving support away from the fixed jaw.
5. The fixed-length cut strip apparatus of claim 4, wherein, The moving driver is connected to the moving support through the moving transmission assembly to drive the moving support to move synchronously with the movable jaw and the cutter.
6. The fixed-length cut tape device of claim 4 or 5, wherein, The moving driver is a servo motor or a stepping motor.
7. The fixed-length cut tape device of claim 1, wherein, The moving transmission assembly is a belt transmission assembly or a screw transmission assembly.
8. The fixed-length cut tape device of claim 7, wherein, The cutter is arranged between the cutter and the cutter table.
9. The fixed-length cut tape device of claim 7 or 8, wherein, The cutter is arranged on the side of the moving support close to the fixed jaw.
10. The fixed-length cut tape apparatus of claim 7 or 8, wherein, The second lifting mechanism is connected to the cutter table to drive the cutter table to move up and down. The cutter is arranged between the movable jaw and the fixed jaw. The cutter is arranged on the side of the moving support away from the fixed jaw. The moving driver is connected to the moving support through the moving transmission assembly to drive the moving support to move synchronously with the movable jaw and the cutter. The moving driver is a servo motor or a stepping motor. The moving transmission assembly is a belt transmission assembly or a screw transmission assembly. The cutter is arranged between the cutter and the cutter table. The cutter is arranged on the side of the moving support close to the fixed jaw. The second lifting mechanism is connected to the cutter table to drive the cutter table to move up and down. The cutter is arranged between the movable jaw and the fixed jaw.