Sample preparation cut-off knife for thermoplastic rubber determination

Abstract

The utility model relates to the technical field of thermoplastic rubber processing, in particular to a sample preparation cut-off knife for thermoplastic rubber determination, which can cut rubber of the same specification in batches only by adjusting the length of a cutting device once by arranging the sample preparation cut-off knife, so that the working efficiency of the sample preparation cut-off knife is improved, and the sample preparation cut-off knife is simpler to operate. Comprising a handle, an operation plate, four sets of sliding blocks, four sets of clamping rollers, four sets of first springs, two sets of fixing blocks, a positioning device, a driving device, an adjusting device and a cutting device, the handle is installed at the top end of the operation plate, the four sets of sliding blocks are slidably installed on the upper left side, the lower left side, the upper right side and the lower right side of the front end of the operation plate correspondingly, and the adjusting device is installed at the left end of the operation plate; the cutting device is installed on the adjusting device and connected with the operation plate in a matched mode.

Description

Technical Field

[0001] The utility model relates to the technical field of thermoplastic rubber processing, in particular to a sample cutting knife for measuring thermoplastic rubber. Background Art

[0002] TPR material is a thermoplastic rubber material. It is a type of thermoplastic soft rubber material that has rubber elasticity and does not require vulcanization and can be directly processed and molded (such as injection molding, extrusion, blow molding, etc.).

[0003] Rubber needs to be cut during the processing. The existing method for cutting rubber is to manually measure the length of the rubber to be cut and then cut the rubber with scissors.

[0004] This method is complicated to operate, and the length needs to be measured each time before the rubber is cut, resulting in low work efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a sample cutting knife for measuring thermoplastic rubber, which can batch cut rubber of the same specification by setting up this equipment only by adjusting the length of the cutting device once, thereby improving its work efficiency and being relatively simple to operate.

[0006] The utility model discloses a sample cutting knife for measuring thermoplastic rubber, comprising a handle, an operating panel, four groups of sliders, four groups of clamping rollers, four groups of first springs, two groups of fixed blocks, a positioning device, a driving device, an adjusting device and a cutting device. The handle is arranged at the top of the operating panel, the four groups of sliders are respectively slidably arranged at the upper left side, the lower left side, the upper right side and the lower right side of the front end of the operating panel, the four groups of clamping rollers are respectively rotatably arranged on the four groups of sliders, one end of the four groups of first springs is connected with the inner ends of the four groups of sliders, the other end of the four groups of first springs is connected with the top and bottom ends of the two groups of fixed blocks, the two groups of fixed blocks are respectively arranged at the left and right sides of the front end of the operating panel, the positioning device is arranged at the middle of the front end of the operating panel, the driving device is arranged at the upper middle side of the front end of the operating panel, the driving device corresponds to the positioning device, the adjusting device is arranged at the left end of the operating panel, the cutting device is arranged on the adjusting device, and the cutting device is matched and connected with the operating panel.

[0007] Preferably, the positioning device includes four groups of first bolts and two groups of positioning plates. Sliding grooves are provided on the left and right sides of the front end of the operating plate. The two groups of positioning plates slide on the two groups of sliding grooves. The left and right parts of the two groups of positioning plates are connected and provided with threaded holes. The four groups of first bolts are respectively threadedly connected to the four groups of threaded holes of the two groups of positioning plates, and the four groups of first bolts are tightened against the two groups of sliding grooves.

[0008] Preferably, the driving device includes a rotating rod, a connecting seat, a door frame, a first motor, a driving wheel, a belt, a conveying wheel, a driven wheel, a second spring and a fixed plate. The connecting seat is installed on the upper side of the front end of the operating panel, the rotating rod is rotatably installed on the connecting seat, the door frame is installed on the left side of the front end of the rotating rod, the first motor is installed at the front end of the door frame, the output end of the first motor passes through the door frame and is connected to the driving wheel, the conveying wheel is rotatably installed at the left end of the rotating rod, the driven wheel is installed at the front end of the conveying wheel, the driven wheel and the driving wheel are synchronously driven by a belt, one end of the second spring is connected to the right side of the bottom end of the rotating rod, the other end of the second spring is connected to the fixed plate, and the fixed plate is installed on the upper side of the front end of the operating panel.

[0009] Preferably, the adjustment device includes a movable frame, a telescopic plate, a second bolt and a ruler, a telescopic groove is provided at the left end of the operating panel, the telescopic plate slides in the telescopic groove of the operating panel, the movable frame is installed at the left end of the telescopic plate, a threaded hole is provided on the left side of the front end of the operating panel, the second bolt is threadedly connected to the threaded hole of the operating panel, the second bolt is tightened against the telescopic plate, the ruler is installed at the top of the telescopic plate, and the cutting device is installed inside the movable frame.

[0010] Preferably, the cutting device includes a second motor, two groups of moving blocks, two groups of cutting knives, a bidirectional screw and a proximity switch. The second motor is installed at the top of the moving frame, and the bidirectional screw is rotatably installed inside the moving frame. The output end of the second motor passes through the top of the moving frame and is connected to the top of the bidirectional screw. The middle parts of the two groups of moving blocks are connected and provided with threaded holes. The two groups of moving blocks are threadedly connected to the bidirectional screw, and the two groups of cutting knives are respectively installed at the inner ends of the two groups of moving blocks. The proximity switch is installed on the inner side of the right end of the operating panel, and the proximity switch is electrically connected to the first motor and the second motor.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the position of the cutting device is adjusted by the adjusting device according to the length of the rubber to be cut, and then the rubber is passed through four sets of clamping rollers, and then the rubber is positioned by adjusting the positioning device, and then the driving device is turned on, and the driving device drives the rubber to move to the right. When the rubber contacts the cutting device, the cutting device is turned on, and the cutting device cuts the rubber. By setting up this equipment, the length of the cutting device only needs to be adjusted once to cut rubber of the same specification in batches, thereby improving its work efficiency and making the operation simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 yes Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0014] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure of B;

[0015] Markings in the accompanying drawings: 1. handle; 2. operating panel; 3. slider; 4. clamping roller; 5. first spring; 6. fixed block; 7. sliding groove; 8. first bolt; 9. positioning plate; 10. rotating rod; 11. connecting seat; 12. door frame; 13. first motor; 14. driving wheel; 15. belt; 16. conveying wheel; 17. driven wheel; 18. second spring; 19. fixed plate; 20. moving frame; 21. telescopic plate; 22. second bolt; 23. scale; 24. second motor; 25. moving block; 26. cutting knife; 27. bidirectional screw; 28. proximity switch. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] like Figures 1 to 3 As shown, the utility model is a sample cutting knife for measuring thermoplastic rubber, comprising a handle 1, an operating panel 2, four groups of sliders 3, four groups of clamping rollers 4, four groups of first springs 5, two groups of fixed blocks 6, a positioning device, a driving device, an adjusting device and a cutting device, wherein the handle 1 is mounted on the top of the operating panel 2, the four groups of sliders 3 are respectively slidably mounted on the upper left side, the lower left side, the upper right side and the lower right side of the front end of the operating panel 2, the four groups of clamping rollers 4 are respectively rotatably mounted on the four groups of sliders 3, one end of the four groups of first springs 5 ​​is connected to the inner end of the four groups of sliders 3, the other end of the four groups of first springs 5 ​​is connected to the top and bottom ends of the two groups of fixed blocks 6, the two groups of fixed blocks 6 are respectively mounted on the left and right sides of the front end of the operating panel 2, the positioning device is mounted in the middle of the front end of the operating panel 2, the driving device is mounted on the upper middle side of the front end of the operating panel 2, the driving device corresponds to the positioning device, the adjusting device is mounted on the left end of the operating panel 2, the cutting device is mounted on the adjusting device, and the cutting device is connected with the operating panel 2;

[0018] The position of the cutting device is adjusted by the adjusting device according to the length of the rubber to be cut, and then the rubber is passed through the four groups of clamping rollers 4, and then the rubber is positioned by adjusting the positioning device, and then the driving device is turned on, and the driving device drives the rubber to move to the right. When the rubber contacts the cutting device, the cutting device is turned on and the cutting device cuts the rubber. By setting up this equipment, the length of the cutting device only needs to be adjusted once to cut rubber of the same specification in batches, which improves its work efficiency and is relatively simple to operate.

[0019] As a preferred embodiment of the above, the positioning device includes four groups of first bolts 8 and two groups of positioning plates 9. The left and right sides of the front end of the operating plate 2 are both provided with sliding grooves 7. The two groups of positioning plates 9 slide on the two groups of sliding grooves 7. The left and right parts of the two groups of positioning plates 9 are both connected and provided with threaded holes. The four groups of first bolts 8 are respectively threadedly connected with the four groups of threaded holes of the two groups of positioning plates 9. The four groups of first bolts 8 are tightened against the two groups of sliding grooves 7.

[0020] By setting the sliding groove 7, the first bolt 8 and the positioning plate 9, the two groups of positioning plates 9 can slide on the two groups of sliding grooves 7. After the two groups of positioning plates 9 position the rubber, the four groups of first bolts 8 are rotated, and the four groups of first bolts 8 are threadedly connected with the two groups of positioning plates 9. The four groups of first bolts 8 press the two groups of sliding grooves 7 tightly, thereby fixing the two groups of positioning plates 9 and playing the role of positioning the rubber.

[0021] As a preferred embodiment of the above, the driving device includes a rotating rod 10, a connecting seat 11, a door frame 12, a first motor 13, a driving wheel 14, a belt 15, a conveying wheel 16, a driven wheel 17, a second spring 18 and a fixed plate 19, the connecting seat 11 is installed on the upper side of the front end of the operating panel 2, the rotating rod 10 is rotatably installed on the connecting seat 11, the door frame 12 is installed on the left side of the front end of the rotating rod 10, the first motor 13 is installed at the front end of the door frame 12, the output end of the first motor 13 passes through the door frame 12 and is connected to the driving wheel 14, the conveying wheel 16 is rotatably installed at the left end of the rotating rod 10, the driven wheel 17 is installed at the front end of the conveying wheel 16, the driven wheel 17 and the driving wheel 14 are synchronously driven by the belt 15, one end of the second spring 18 is connected to the right side of the bottom end of the rotating rod 10, the other end of the second spring 18 is connected to the fixed plate 19, and the fixed plate 19 is installed on the upper side of the front end of the operating panel 2;

[0022] By arranging a rotating rod 10, a connecting seat 11, a door frame 12, a first motor 13, a driving wheel 14, a belt 15, a conveying wheel 16, a driven wheel 17, a second spring 18 and a fixing plate 19, the rotating rod 10 is pressed to make the rotating rod 10 drive the conveying wheel 16 to be lifted, and the second spring 18 is elastically deformed. When the rubber is positioned well, the rotating rod 10 is released, and the rotating rod 10 is driven downward by the action of the second spring 18, and the conveying wheel 16 contacts the rubber. Then, the first motor 13 is turned on, and the first motor 13 drives the driving wheel 14 to rotate. The driving wheel 14 drives the driven wheel 17 to rotate through the belt 15, and the driven wheel 17 drives the conveying wheel 16 to rotate. The conveying wheel 16 conveys the rubber. When the rubber contacts the cutting device, the first motor 13 is turned off to convey the rubber.

[0023] As a preferred embodiment of the above, the adjusting device includes a mobile frame 20, a telescopic plate 21, a second bolt 22 and a scale 23. A telescopic groove is provided at the left end of the operating plate 2, and the telescopic plate 21 slides in the telescopic groove of the operating plate 2. The mobile frame 20 is installed at the left end of the telescopic plate 21. A threaded hole is provided on the left side of the front end of the operating plate 2. The second bolt 22 is threadedly connected to the threaded hole of the operating plate 2. The second bolt 22 tightens the telescopic plate 21. The scale 23 is installed at the top of the telescopic plate 21. The cutting device is installed inside the mobile frame 20.

[0024] By arranging the movable frame 20, the telescopic plate 21, the second bolt 22 and the scale 23, the telescopic plate 21 is extended out of the telescopic groove of the operating plate 2 and its length is adjusted by the scale 23. After the length of the telescopic plate 21 is adjusted, the second bolt 22 is rotated, and the second bolt 22 is threadedly connected with the operating plate 2. The second bolt 22 tightens and fixes the telescopic plate 21, which plays a role in adjusting the length of the cutting device, thereby facilitating batch cutting of rubber.

[0025] As a preferred embodiment of the above, the cutting device includes a second motor 24, two groups of moving blocks 25, two groups of cutting knives 26, a bidirectional screw 27 and a proximity switch 28. The second motor 24 is installed at the top of the moving frame 20, and the bidirectional screw 27 is rotatably installed inside the moving frame 20. The output end of the second motor 24 passes through the top of the moving frame 20 and is connected to the top of the bidirectional screw 27. The middle parts of the two groups of moving blocks 25 are connected and provided with threaded holes. The two groups of moving blocks 25 are threadedly connected to the bidirectional screw 27. The two groups of cutting knives 26 are respectively installed at the inner ends of the two groups of moving blocks 25. The proximity switch 28 is installed on the inner side of the right end of the operating panel 2, and the proximity switch 28 is electrically connected to the first motor 13 and the second motor 24.

[0026] By setting the second motor 24, the moving block 25, the cutting knife 26, the bidirectional screw 27 and the proximity switch 28, when the rubber contacts the proximity switch 28, the proximity switch 28 controls the first motor 13 to turn off the second motor 24 and turn on the second motor 24, the second motor 24 drives the bidirectional screw 27 to rotate, the bidirectional screw 27 is threadedly connected with the two groups of moving blocks 25, the two groups of moving blocks 25 drive the two groups of cutting knives 26 to move inward, and the two groups of cutting knives 26 cut the rubber, thereby playing the role of cutting the rubber.

[0027] The utility model discloses a sample cutting knife for measuring thermoplastic rubber. When the utility model is working, the position of the movable frame 20 is first adjusted according to the length of the rubber to be cut, so that the telescopic plate 21 is extended in the telescopic groove of the operating plate 2 and its length is adjusted by the scale 23. After the length of the telescopic plate 21 is adjusted, the second bolt 22 is rotated, and the second bolt 22 is threadedly connected with the operating plate 2. The second bolt 22 is tightened and fixed to the telescopic plate 21. Then, by pressing the rotating rod 10, the rotating rod 10 drives the conveying wheel 16 to be lifted, and the second spring 18 is elastically deformed, and then the rubber is passed through four groups of clamping rollers 4, and then the two groups of positioning plates 9 are slid on the two groups of sliding grooves 7. After the two groups of positioning plates 9 position the rubber, the four groups of first bolts 8 are rotated, and the four groups of first bolts 8 are threadedly connected with the two groups of positioning plates 9. 8 presses the two groups of sliding grooves 7 tightly, thereby fixing the two groups of positioning plates 9, and then loosens the rotating rod 10, and under the action of the second spring 18, drives the rotating rod 10 to move downward, and the conveying wheel 16 contacts the rubber, and then turns on the first motor 13, the first motor 13 drives the driving wheel 14 to rotate, the driving wheel 14 drives the driven wheel 17 to rotate through the belt 15, the driven wheel 17 drives the conveying wheel 16 to rotate, and the conveying wheel 16 conveys the rubber. When the rubber contacts the proximity switch 28, the proximity switch 28 controls the first motor 13 to turn off the second motor 24 and turn on the second motor 24, the second motor 24 drives the bidirectional screw 27 to rotate, the bidirectional screw 27 is threadedly connected with the two groups of moving blocks 25, the two groups of moving blocks 25 drive the two groups of cutting knives 26 to move inward, and the two groups of cutting knives 26 can cut the rubber.

[0028] The installation, connection or setting methods of the sample cutting knife for measuring thermoplastic rubber of the utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the first motor 13, the second motor 24 and the proximity switch 28 of the sample cutting knife for measuring thermoplastic rubber of the utility model are purchased on the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manual.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sample cutting knife for measuring thermoplastic rubber, characterized in that: The invention comprises a handle (1), an operating panel (2), four groups of sliders (3), four groups of clamping rollers (4), four groups of first springs (5), two groups of fixed blocks (6), a positioning device, a driving device, an adjusting device and a cutting device. The handle (1) is mounted on the top of the operating panel (2). The four groups of sliders (3) are respectively slidably mounted on the upper left side, the lower left side, the upper right side and the lower right side of the front end of the operating panel (2). The four groups of clamping rollers (4) are respectively rotatably mounted on the four groups of sliders (3). One end of the four groups of first springs (5) is connected to the inner end of the four groups of sliders (3). The other end of the four groups of first springs (5) is connected to the top and bottom ends of the two groups of fixed blocks (6). The two groups of fixed blocks (6) are respectively mounted on the left and right sides of the front end of the operating panel (2). The positioning device is mounted on the middle part of the front end of the operating panel (2). The driving device is mounted on the upper middle part of the front end of the operating panel (2). The driving device corresponds to the positioning device. The adjusting device is mounted on the left end of the operating panel (2). The cutting device is mounted on the adjusting device. The cutting device is matched and connected with the operating panel (2).

2. A sample cutting knife for thermoplastic rubber measurement as claimed in claim 1, characterized in that: The positioning device comprises four groups of first bolts (8) and two groups of positioning plates (9). The left and right sides of the front end of the operation plate (2) are both provided with sliding grooves (7). The two groups of positioning plates (9) slide on the two groups of sliding grooves (7). The left and right parts of the two groups of positioning plates (9) are both connected with threaded holes. The four groups of first bolts (8) are respectively threadedly connected with the four groups of threaded holes of the two groups of positioning plates (9). The four groups of first bolts (8) are pressed against the two groups of sliding grooves (7).

3. A sample cutting knife for thermoplastic rubber measurement as claimed in claim 2, characterized in that: The driving device comprises a rotating rod (10), a connecting seat (11), a door frame (12), a first motor (13), a driving wheel (14), a belt (15), a conveying wheel (16), a driven wheel (17), a second spring (18) and a fixing plate (19), wherein the connecting seat (11) is mounted on the upper side of the front end of the operating plate (2), the rotating rod (10) is rotatably mounted on the connecting seat (11), the door frame (12) is mounted on the left side of the front end of the rotating rod (10), and the first motor (13) is mounted on the front end of the door frame (12). The output end of the first motor (13) passes through the door frame (12) and is connected to the driving wheel (14). The conveying wheel (16) is rotatably mounted on the left end of the rotating rod (10). The driven wheel (17) is mounted on the front end of the conveying wheel (16). The driven wheel (17) and the driving wheel (14) are synchronously driven by a belt (15). One end of the second spring (18) is connected to the right side of the bottom end of the rotating rod (10). The other end of the second spring (18) is connected to a fixing plate (19). The fixing plate (19) is mounted on the upper side of the front end of the operating panel (2).

4. A sample cutting knife for thermoplastic rubber measurement as claimed in claim 3, characterized in that: The adjusting device comprises a movable frame (20), a telescopic plate (21), a second bolt (22) and a scale (23); a telescopic groove is arranged at the left end of the operating plate (2); the telescopic plate (21) slides in the telescopic groove of the operating plate (2); the movable frame (20) is mounted on the left end of the telescopic plate (21); a threaded hole is arranged on the left side of the front end of the operating plate (2); the second bolt (22) is threadedly connected with the threaded hole of the operating plate (2); the second bolt (22) is pressed against the telescopic plate (21); the scale (23) is mounted on the top of the telescopic plate (21); and the cutting device is mounted inside the movable frame (20).

5. A sample cutting knife for thermoplastic rubber testing as claimed in claim 4, characterized in that: The cutting device comprises a second motor (24), two groups of moving blocks (25), two groups of cutting knives (26), a bidirectional screw (27) and a proximity switch (28), wherein the second motor (24) is mounted on the top of a moving frame (20), the bidirectional screw (27) is rotatably mounted inside the moving frame (20), the output end of the second motor (24) passes through the top of the moving frame (20) and is connected to the top of the bidirectional screw (27), the middle parts of the two groups of moving blocks (25) are both connected and provided with threaded holes, the two groups of moving blocks (25) are threadedly connected to the bidirectional screw (27), the two groups of cutting knives (26) are respectively mounted on the inner ends of the two groups of moving blocks (25), the proximity switch (28) is mounted on the inner side of the right end of the operation panel (2), and the proximity switch (28) is electrically connected to the first motor (13) and the second motor (24).

Images