A clamping and cutting device for a drum machine

Abstract

The utility model discloses a clamping cutting device of big circle machine, including frame, be equipped with clamping mechanism and cutting mechanism on the frame, and clamping mechanism includes two clamping seat, and be used for driving two clamping seat to move towards each other or opposite clamping drive mechanism, and cutting mechanism includes cutting drive mechanism and the cutter of fixed setting on the output of cutting drive mechanism. The utility model discloses a clamping cutting device of big circle machine, through setting up the clamping mechanism for the cloth on traction roller clamping and cutting mechanism for cutting cloth on traction roller when needing clamping and cutting cloth, clamping drive mechanism drives two clamping seat to clamp cloth, then through cutting drive mechanism drive cutter to cut cloth, realize automatic clamping and automatic cutting cloth, and the cloth break of such cutting is neat, compares to traditional manual cutting mode, and the degree of automation is high, and a large amount of manpower is saved, and work efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of large circular knitting machine technology, and specifically relates to a clamping and cutting device for a large circular knitting machine. Background Technology

[0002] The circular knitting machine, also known as a circular weft knitting machine or circular weft knitting machine, is a large-scale machine commonly used in the knitting industry. The outside of the circular knitting machine has a safety door. The upper part of the circular knitting machine is the knitting area, and the lower part has traction rollers and fabric take-up equipment to pull the fabric woven by the circular knitting machine out of the knitting area. After the fabric take-up equipment has collected a certain amount of fabric, it needs to be cut manually before the collected fabric can be removed.

[0003] For example, Chinese utility model patent CN207793550U discloses a take-up device for a large circular knitting machine, including a base and a rotating body. The rotating body includes two side housings and a take-up device, with the two side housings arranged opposite each other. The take-up device includes a take-up roller, a take-up motor, an angular velocity acquisition mechanism, and a control mechanism. The take-up roller is located between the two side housings. The take-up motor drives the take-up roller to take up the fabric from the large circular knitting machine. The angular velocity acquisition mechanism acquires the angular velocity of the rotating body's fixed-axis rotation. The control mechanism controls the rotation of the take-up motor based on the angular velocity of the rotating body's fixed-axis rotation.

[0004] The existing technical solutions described above have the following drawbacks: In actual production, after the fabric winding equipment has finished winding the fabric, since the above technical solutions do not include any device for clamping the fabric or for cutting the fabric, it is necessary to manually hold the fabric with one hand and cut it with scissors in the other hand before the wound fabric can be removed. However, this manual cutting method is inefficient, time-consuming, and labor-intensive, and requires a high level of skill from the operator; otherwise, very uneven cuts are often obtained, and the evenness of the cut will affect the quality of the fabric.

[0005] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to the occurrence of this case. Utility Model Content

[0006] The purpose of this utility model is to provide a clamping and cutting device for a large circular knitting machine, which can automatically cut fabric, has a high degree of automation, can improve cutting efficiency, and effectively save manpower.

[0007] To achieve the above objectives, this utility model adopts the following technical solution:

[0008] A clamping and cutting device for a large circular knitting machine includes a frame. The frame includes a first frame and a second frame arranged opposite to each other, and a connecting frame connected between the first frame and the second frame. A traction roller for pulling fabric is provided between the first frame and the second frame. The frame is also provided with a clamping mechanism for clamping the fabric on the traction roller and a cutting mechanism for cutting the fabric on the traction roller. The clamping mechanism includes two clamping seats movably arranged between the first frame and the second frame, and a clamping drive mechanism for driving the two clamping seats to move towards or away from each other. The arrangement direction of the clamping seats is the same as the arrangement direction of the traction roller. The cutting mechanism is arranged below one of the clamping seats. The cutting mechanism includes a cutting drive mechanism and a cutter fixed on the output end of the cutting drive mechanism. The cutting drive mechanism is arranged along the length direction of the clamping seat, and the cutter is arranged towards the other clamping seat.

[0009] Furthermore, the connecting frame is located at the lower part of the first frame and the second frame, the traction roller, the clamping mechanism and the cutting mechanism are all located above the connecting frame, and the two ends of the clamping seat are respectively disposed on the first frame and the second frame.

[0010] Furthermore, the clamping drive mechanism includes a first clamping component disposed at one end of the clamping seat and a second clamping component disposed at the other end of the clamping seat, wherein the first clamping component is disposed on the first frame and the second clamping component is disposed on the second frame.

[0011] Furthermore, the first clamping assembly includes two obliquely arranged first clamping cylinders and first clamping plates respectively disposed at the output ends of the corresponding first clamping cylinders. The output ends of the first clamping cylinders are arranged obliquely upwards. The two first clamping cylinders are symmetrically arranged with the outlet of the traction roller as the center. One end of the first clamping plate is a fixed end fixedly connected to the corresponding first clamping cylinder, and the other end is a rotating end rotatably connected to the first frame. The two clamping seats are respectively fixed at one end of the first frame on the fixed end of the corresponding first clamping plate.

[0012] Furthermore, each of the two first clamping plates has a first abutment protruding on the opposite side of its fixed end, and a first limiting post is provided on the first frame below the outlet of the traction roller for the two first abutments to abut against. The first limiting post is located on the moving path of the two first abutments.

[0013] Furthermore, the second clamping assembly includes two obliquely arranged second clamping cylinders and second clamping plates respectively disposed at the output ends of the corresponding second clamping cylinders. The output ends of the second clamping cylinders are arranged obliquely upwards. The two second clamping cylinders are symmetrically arranged with the outlet of the traction roller as the center. One end of the second clamping plate is a fixed end fixedly connected to the corresponding second clamping cylinder, and the other end is a rotating end rotatably connected to the second frame. The two clamping seats are respectively fixed at one end of the second frame on the fixed end of the corresponding second clamping plate.

[0014] Furthermore, each of the two second clamping plates has a second abutment protruding on one side of its fixed end facing each other. The second frame has a second limiting post below the outlet of the traction roller for the two second abutments to abut against. The second limiting post is located on the moving path of the two second abutments. When the two first clamping cylinders and the two second clamping cylinders drive the two clamping seats to clamp the fabric, the two first abutments abut against the two sides of the first limiting post, and the two second abutments abut against the two sides of the second limiting post.

[0015] Furthermore, another clamping seat opposite the cutting mechanism is provided with a cutting channel for the cutter to extend into, and the cutting channel is arranged along the length direction of the clamping seat.

[0016] By adopting the aforementioned design scheme, the beneficial effects of this utility model are:

[0017] The clamping and cutting device of this utility model for a large circular knitting machine has a clamping mechanism for clamping the fabric on the traction roller and a cutting mechanism for cutting the fabric on the traction roller. When it is necessary to clamp and cut the fabric, the clamping drive mechanism drives two clamping seats to clamp the fabric, and then the cutting drive mechanism drives the cutter to cut the fabric, realizing automatic clamping and automatic cutting of the fabric. The fabric cut in this way has a neat cut. Compared with the traditional manual cutting method, it has a high degree of automation, saves a lot of manpower, and greatly improves work efficiency.

[0018] Furthermore, the first abutment, the second abutment, the first limiting post, and the second limiting post are provided to limit the stroke of the two clamping seats and prevent the two clamping seats from moving too far in opposite directions, which would cause excessive clamping force and damage to the fabric and other components.

[0019] Furthermore, setting up a cutting channel for the cutter to extend into can improve the stability of the cutter during cutting. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the clamping and cutting device of this utility model.

[0021] Figure 2 This is a structural schematic diagram of the clamping and cutting device of this utility model from another perspective.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0023] In the picture:

[0024] 1-Rack;

[0025] 11-First frame; 12-Second frame;

[0026] 13-Connecting frame; 14-First limiting post;

[0027] 20-Traction roller;

[0028] 3-Cutting mechanism; 31-Cutting drive mechanism;

[0029] 32-Cutter; 310-Base;

[0030] 310 - Movable seat; 4 - Clamping seat;

[0031] 41-Cutting channel; 51-First clamping assembly;

[0032] 52 - Second clamping assembly; 511 - First clamping cylinder;

[0033] 512 - First clamping plate; 513 - First abutment;

[0034] 521 - Second clamping cylinder; 522 - Second clamping plate. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figures 1 to 3As shown, a clamping and cutting device for a circular knitting machine includes a frame 1. The frame 1 includes a first frame 11 and a second frame 12 arranged opposite to each other, and a connecting frame 13 connecting the first frame 11 and the second frame 12. A traction roller 20 for pulling the fabric is provided between the first frame 11 and the second frame 12. The traction roller 20 adopts a conventional structure in the art, as long as it can pull out the fabric woven by the circular knitting machine. Specifically, in this utility model, the traction roller 20 consists of two adjacent rollers, forming a traction channel for the fabric to pass through between the two rollers. The fabric enters the traction channel from above the two rollers and is pulled out from below the traction channel.

[0037] The main improvement of this utility model is that the frame 1 is also provided with a clamping mechanism for clamping the fabric on the traction roller 20 and a cutting mechanism 3 for cutting the fabric on the traction roller 20. Specifically, the connecting frame 13 is located at the lower part of the first frame 11 and the second frame 12, the traction roller 20 is located at the upper part of the connecting frame 13, and the clamping mechanism and the cutting mechanism 3 are both connected above the frame 13.

[0038] In this invention, the clamping mechanism includes two movably mounted clamping seats 4 located below the traction roller 20, and a clamping drive mechanism for driving the two clamping seats 4 to move towards or away from each other. The clamping seats 4 are arranged in the same direction as the traction roller 20. The clamping drive mechanism controls the two clamping seats 4 to move towards each other to clamp the fabric located below the traction roller 20. Specifically, the clamping drive mechanism includes a first clamping component 51 located at one end of the clamping seat 4 and a second clamping component 52 located at the other end of the clamping seat 4. The first clamping component 51 is mounted on the first frame 11, and the second clamping component 52 is mounted on the second frame 12. The first clamping component 51 and the second clamping component 52 operate synchronously, thereby driving the two clamping seats to move towards each other. The seat 4 moves; specifically, the first clamping assembly 51 includes two obliquely arranged first clamping cylinders 511 and first clamping plates 512 respectively disposed at the output ends of the corresponding first clamping cylinders 511. The output ends of the first clamping cylinders 511 are arranged obliquely upward and are all tilted outward in an inverted V shape. The two first clamping cylinders 511 are symmetrically arranged with the traction channel of the traction roller 20 as the center. One end of the first clamping plate 512 is a fixed end that is fixedly connected to the corresponding first clamping cylinder 511, and the other end is a rotating end that is rotatably connected to the first frame 11. The two clamping seats 4 are respectively fixed on the fixed ends of the corresponding first clamping plates 512 at one end of the first frame 11. The fixed ends of the first clamping plates 512 are located above the traction roller 20.

[0039] Preferably, in this embodiment, the second clamping assembly 52 adopts the same structure as the first clamping assembly 51, and the first clamping assembly 51 and the second clamping assembly 52 are symmetrically arranged with the midpoint of the length direction of the traction roller 20 as the center. That is, the second clamping assembly 52 includes two obliquely arranged second clamping cylinders 521 and second clamping plates 522 respectively disposed at the output ends of the corresponding second clamping cylinders 521. The output ends of the second clamping cylinders 521 are arranged obliquely upward and are all inclined outward in an inverted V shape. The two second clamping cylinders 521 are symmetrically arranged with the traction channel of the traction roller 20 as the center. Correspondingly, one end of the second clamping plate 522 is a fixed end fixedly connected to the corresponding second clamping cylinder 521, and the other end is a rotating end rotatably connected to the second frame 12. The two clamping seats 4 are respectively fixedly disposed on the fixed ends of the corresponding second clamping plates 522 at one end of the second frame 12.

[0040] The cutting mechanism 3 is fixedly mounted below one of the clamping seats 4. When the first clamping assembly 51 and the second clamping assembly 52 drive the two clamping seats 4 to clamp the fabric, the cutting mechanism 3 is located on the side of the clamping seat 4 facing the other clamping seat 4. The cutting mechanism 3 includes a cutting drive mechanism 31 and a cutter 32 fixedly mounted on the output end of the cutting drive mechanism 31. In this embodiment, the cutting drive mechanism 31 is preferably a conventional rodless cylinder existing in the art. The rodless cylinder is arranged along the length direction of the clamping seat 4. One end of the rodless cylinder 31 is fixedly mounted on the first clamping plate 512, and the other end is fixedly mounted on the second clamping plate 522. The cutter 32 extends out of the rodless cylinder and is positioned towards the other clamping seat 4. The upper part is provided with a cutting channel 41 for the cutter 32 to extend into. The cutting channel 41 is arranged along the length of the clamping seat 4. When the first clamping component 51 and the second clamping component 52 drive the two clamping seats 4 to clamp the fabric, the cutter 32 can just extend into the cutting channel 41 of the other clamping seat 4. Then, the cutter 32 is driven by the rodless cylinder to cut the fabric. Setting a cutting channel 41 for the cutter 32 to extend into can improve the stability of the cutter 32 during cutting. It should be noted that in actual use, a cutting mechanism 3 can also be set on both sides of the two clamping seats 4 to better complete the cutting action. It should be noted that the above-mentioned rodless cylinder can be a rodless cylinder that is conventionally available on the market. Correspondingly, such as Figure 3 As shown, the rodless cylinder has a base 310, and the output end of the rodless cylinder has a movable seat 311 that can move along the base 310. The cutter 32 is fixed on the movable seat 311 of the rodless cylinder. The cutter 32 passes through the base 310 of the rodless cylinder and is set towards another clamping seat 4, so that the movable seat 311 can drive the cutter 32 to move back and forth to cut the fabric.

[0041] The first clamping assembly 51 and the second clamping assembly 52 operate synchronously. Taking the operation of the first clamping assembly 51 as an example, when the fabric is not clamped, both first clamping cylinders 511 are extended, and both clamping seats 4 are located away from the traction channel of the traction roller 20. When it is necessary to clamp and cut the fabric, both first clamping cylinders 511 retract synchronously, causing the fixed ends of the two first clamping plates 512 to rotate towards the traction channel of the traction roller 20. The first clamping plates 512 then rotate... The movement of clamping seat 4 causes the two clamping seats 4 to move towards each other, thereby clamping the fabric. When the first clamping component 51 and the second clamping component 52 drive the two clamping seats 4 to clamp the fabric, the fabric is between the seat 310 of the rodless cylinder and the other clamping seat 4. After the fabric is clamped, the cutting drive mechanism can be started to control the cutter 32 to move from one end of the cutting channel 41 to the other end to cut the fabric. If necessary, the cutter 32 can be controlled to move back and forth to cut the fabric multiple times, thereby achieving the purpose of cutting the fabric.

[0042] Preferred, such as Figure 1 As shown, the first clamping assembly 51 also includes a first abutment 513. Specifically, the fixed ends of the two first clamping plates 512 each have a first abutment 513 protruding on their opposite sides. A first limiting post 14 is provided below the channel of the traction roller 20 on the first frame 11 for the two first abutments 513 to abut against. The first limiting post 14 is located on the moving path of the two first abutments 513. Since the second clamping assembly 52 adopts the same structure as the first clamping assembly 51, correspondingly, the fixed ends of the two second clamping plates 522 each have a second abutment (not shown in the figure) protruding on their opposite sides. A first limiting post 14 is provided below the channel of the traction roller 20 on the second frame 12. The two second limiting posts (not shown in the figure) are provided for the two second abutment tops to abut against. The second limiting posts are symmetrically arranged with the first limiting post 14 and are located on the moving path of the two second abutment tops. When the two first clamping cylinders 511 and the two second clamping cylinders 521 act simultaneously to drive the two clamping seats 4 to clamp the fabric, the two first abutment tops 513 abut against the two sides of the first limiting post 14 respectively, and the two second abutment tops abut against the two sides of the second limiting post respectively. This arrangement can limit the stroke of the two clamping seats 4, so that the two clamping seats 4 just clamp the fabric, avoiding the two clamping seats 4 from moving too much towards each other, which would cause the clamping force to be too large and damage the fabric and other parts.

[0043] The clamping and cutting device of this utility model for a large circular knitting machine has a clamping mechanism on the frame 1 for clamping the fabric on the traction roller 20 and a cutting mechanism 3 for cutting the fabric on the traction roller 20. When it is necessary to clamp and cut the fabric, the clamping drive mechanism drives two clamping seats 4 to clamp the fabric, and then the cutting drive mechanism 31 drives the cutter 32 to cut the fabric, thus realizing automatic clamping and automatic cutting of the fabric. The fabric cut in this way has a neat cut. Compared with the traditional manual cutting method, it has a high degree of automation, saves a lot of manpower, and greatly improves work efficiency.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping and cutting device for a large circular knitting machine, comprising a frame, the frame including a first frame and a second frame disposed opposite to each other, and a connecting frame connected between the first frame and the second frame, wherein a traction roller for traction of fabric is provided between the first frame and the second frame, characterized in that, The frame is also provided with a clamping mechanism for clamping the fabric on the traction roller and a cutting mechanism for cutting the fabric on the traction roller. The clamping mechanism includes two clamping seats that are movably disposed between the first frame and the second frame, and a clamping drive mechanism for driving the two clamping seats to move towards or away from each other. The arrangement direction of the clamping seats is the same as the arrangement direction of the traction roller. The cutting mechanism is disposed below one of the clamping seats. The cutting mechanism includes a cutting drive mechanism and a cutter fixed on the output end of the cutting drive mechanism. The cutting drive mechanism is arranged along the length direction of the clamping seat, and the cutter is arranged towards the other clamping seat.

2. The clamping and cutting device for a large circular knitting machine according to claim 1, characterized in that, The connecting frame is located at the lower part of the first frame and the second frame, the traction roller, the clamping mechanism and the cutting mechanism are all located above the connecting frame, and the two ends of the clamping seat are respectively set on the first frame and the second frame.

3. The clamping and cutting device for a large circular knitting machine according to claim 2, characterized in that, The clamping drive mechanism includes a first clamping component disposed at one end of the clamping seat and a second clamping component disposed at the other end of the clamping seat. The first clamping component is disposed on the first frame and the second clamping component is disposed on the second frame.

4. The clamping and cutting device for a large circular knitting machine according to claim 3, characterized in that, The first clamping assembly includes two obliquely arranged first clamping cylinders and first clamping plates respectively disposed at the output ends of the corresponding first clamping cylinders. The output ends of the first clamping cylinders are arranged obliquely upward. The two first clamping cylinders are symmetrically arranged with the outlet of the traction roller as the center. One end of the first clamping plate is a fixed end that is fixedly connected to the corresponding first clamping cylinder, and the other end is a rotating end that is rotatably connected to the first frame. The two clamping seats are respectively fixed at one end of the first frame on the fixed end of the corresponding first clamping plate.

5. The clamping and cutting device for a large circular knitting machine according to claim 4, characterized in that, The two first clamping plates each have a first abutment protruding on the opposite side of their fixed ends. The first frame has a first limiting post below the outlet of the traction roller for the two first abutments to abut against. The first limiting post is located on the moving path of the two first abutments.

6. The clamping and cutting device for a large circular knitting machine according to claim 5, characterized in that, The second clamping assembly includes two obliquely arranged second clamping cylinders and second clamping plates respectively disposed at the output ends of the corresponding second clamping cylinders. The output ends of the second clamping cylinders are arranged obliquely upwards. The two second clamping cylinders are symmetrically arranged with the outlet of the traction roller as the center. One end of the second clamping plate is a fixed end that is fixedly connected to the corresponding second clamping cylinder, and the other end is a rotating end that is rotatably connected to the second frame. The two clamping seats are respectively fixed at one end of the second frame on the fixed end of the corresponding second clamping plate.

7. The clamping and cutting device for a large circular knitting machine according to claim 6, characterized in that, Each of the two second clamping plates has a second abutment protruding on one side of its fixed end facing each other. The second frame has a second limiting post below the outlet of the traction roller for the two second abutments to abut against. The second limiting post is located on the moving path of the two second abutments. When the two first clamping cylinders and the two second clamping cylinders drive the two clamping seats to clamp the fabric, the two first abutments abut against the two sides of the first limiting post, and the two second abutments abut against the two sides of the second limiting post.

8. The clamping and cutting device for a large circular knitting machine according to claim 1, characterized in that, The other clamping seat opposite the cutting mechanism is provided with a cutting channel for the cutter to extend into, and the cutting channel is arranged along the length direction of the clamping seat.

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