Heat shrink tubing cutting device

Abstract

The present invention relates to the technical field of cutting devices, and proposes a heat shrink tubing cutting device, which adopts a single synchronous multi-segment cutting method to sequentially cut the heat shrink tubing. The cutting operation is relatively simple and there is less waste. In the cutting operation, an internal support feeding structure is adopted, which has good feeding reliability and can also better guarantee the cutting quality. At the same time, the operation efficiency is high and the practicality is good. The device comprises multiple cutting knives and a bottom inclined plate. The top end of the bottom inclined plate is fixedly connected to a low side frame and a high side frame. The right end of the low side frame is rotatably connected to a mounting plate, and a driving motor for rotating the mounting plate is installed on the left end of the low side frame. The right end of the mounting plate is rotatably connected to multiple inner support rods. The right end of the low side frame is fixedly connected to a top arc frame and a rear arc frame. The top arc frame and the rear arc frame are both fixedly connected to the high side frame. Multiple fixing frames are fixedly connected to the inner arc surface of the top arc frame, and the multiple fixing frames are arranged at equal intervals.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting devices, and in particular to a heat shrink tubing cutting device. Background Art

[0002] As is known to all, heat shrink tubing usually needs to be cut according to the length of use during use, and the heat shrink tubing cutting device is an auxiliary device for cutting the heat shrink tubing during use.

[0003] After searching, the Chinese patent with publication number CN113305892A published on August 27, 2021 discloses a heat shrink tubing cutting device, which is roughly described as comprising a conveyor belt, a roller for driving the conveying movement, and a first driving member for driving the roller to rotate. The outer surface of the conveyor belt is provided with a plurality of first grooves along its movement direction. The long sides of the first grooves are perpendicular to the movement direction of the conveyor belt. Second grooves are provided at both ends of the first groove. The shape and position of the second grooves along the movement direction of the conveyor belt are consistent with those of the first grooves. The opposite surfaces of the first groove and the second groove are connected. A feed trough and a cutting portion are provided in sequence above the conveyor belt along the moving direction of the conveyor belt. A feed port is provided at the top of the feed trough, and a bottom cover of the feed trough is provided on the conveyor belt. A discharge port is provided on the side of the feed trough facing the cutting portion close to the conveyor belt. The vertical distance from the discharge port to the bottom of the first groove is greater than one and less than the diameter of two heat shrinkable sleeves. The cutting portion includes a vertically arranged cutting knife and a second driving member that controls the cutting knife to move in the vertical direction. There is a gap between the first groove and the second groove, and the blade of the cutting knife is aligned with the gap. When in use, the heat shrinkable sleeve to be cut is poured into the feed trough from the feed port, and the heat shrinkable sleeve to be cut is poured into the feed trough from the feed port. The heat shrink tubing is stacked on the conveyor belt, and the conveyor belt is started to drive the heat shrink tubing in the feed trough to move toward the discharge port. As the conveyor belt moves, the heat shrink tubing abuts against the side wall where the discharge port is located, so that the axis of the heat shrink tubing is parallel to the axis of the first groove and the second groove. No manual regularization is required. The bottom heat shrink tubing is embedded in the first groove and the second groove and is brought from the discharge port to the cutting section by the conveyor belt. After the predetermined number of heat shrink tubing entering the cutting section is reached, the conveyor belt stops, and the third driving member controls the pressing cover to approach the conveyor belt and abut against the heat shrink tubing to be cut, which is convenient for subsequent The cutter cuts to prevent the heat shrink tubing from tilting up during cutting. The cutter approaches the conveyor belt under the drive of the second driving member and is inserted into the gap between the first groove and the second groove to cut both ends of the heat shrink tubing. The cut heat shrink tubing continues to move with the conveyor belt. When the cut heat shrink tubing passes the turning point of the conveyor belt, it falls from the conveyor belt under the action of gravity. The first guide section corresponds to the position of the first groove, so that the cut heat shrink tubing can fall smoothly into the receiving frame. The second guide section corresponds to the position of the second groove, so that the waste material in the second groove can fall smoothly into the waste frame.

[0004] Although the above-mentioned existing technical solutions can be used for auxiliary cutting of heat shrink tubing, on the one hand, most of the heat shrink tubing products on the market are wound into a whole roll. Therefore, when using it, the whole heat shrink tubing needs to be cut sequentially. If the above-mentioned technical solution is used for cutting, the whole roll of heat shrink tubing needs to be pre-cut into sections in advance, and then the edge trimming process is performed. The work is tedious and laborious, and a lot of waste is generated. On the other hand, the heat shrink tubing is generally soft in texture, and the above-mentioned cutting solution is also difficult to form an effective sequential feeding and cutting of the heat shrink tubing, and its practicality is poor. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the present invention provides a heat shrink tubing cutting device, which uses a single synchronous multi-segment cutting method to sequentially cut the heat shrink tubing. The cutting operation is relatively simple and there is less waste. In addition, during the cutting operation, an internal support feeding structure is adopted, which has better feeding reliability and can also better guarantee the cutting quality. At the same time, the operation efficiency is high and the practicality is good.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heat shrink tubing cutting device, comprising a plurality of cutting knives and a bottom inclined plate, the top end of the bottom inclined plate is fixedly connected to a low side frame and a high side frame, the right end of the low side frame is rotatably connected to a mounting plate, and the left end of the low side frame is equipped with a driving motor for rotating the mounting plate, the right end of the mounting plate is rotatably connected to a plurality of inner support rods, the right end of the low side frame is fixedly connected to a top arc frame and a rear arc frame, the top arc frame and the rear arc frame are both fixedly connected to the high side frame, a plurality of fixing frames are fixedly connected to the inner arc surface of the top arc frame, and the plurality of fixing frames are arranged at equal intervals, and the plurality of cutting knives are rotatably connected to the inner arc surface of the top arc frame, On multiple fixed frames and multiple cutting knives, mounting planes are provided, multiple mounting planes are fixedly connected with auxiliary pressure springs, the top ends of multiple auxiliary pressure springs are in contact with the top arc frame, the inner arc surface of the rear arc frame is installed with multiple upper discharge wheels and multiple lower discharge wheels, the multiple upper discharge wheels and multiple lower discharge wheels are alternately spaced up and down and arranged at equal distances, the left end of the high side frame is fixedly connected with a mounting sleeve, an electric telescopic rod is installed in the mounting sleeve, the telescopic end of the electric telescopic rod is fixedly connected with a cutting frame, a circular cutter is rotatably connected in the cutting frame, a reduction motor is installed at the left end of the cutting frame, and the reduction motor is used for driving the rotation of the circular cutter.

[0009] On the basis of the above scheme, the multiple upper unloading wheels include an upper fixed tube, the multiple lower unloading wheels include a lower fixed tube, the multiple upper fixed tubes and the multiple lower fixed tubes are connected to the rear arc frame, the multiple upper fixed tubes and the multiple lower fixed tubes are slidably connected to the unloading wheel frame, the multiple unloading wheel frames are fixedly connected with connecting springs, the multiple connecting springs are respectively connected to the multiple upper fixed tubes and the multiple lower fixed tubes, each adjacent two upper fixed tubes in the multiple upper fixed tubes are arranged at equal intervals, and each adjacent two lower fixed tubes in the multiple lower fixed tubes are also arranged at equal intervals, and the multiple upper fixed tubes and the multiple lower fixed tubes are alternately arranged at upper and lower intervals, and the multiple unloading wheel frames are rotatably connected with friction unloading wheels, and the multiple unloading wheel frames are equipped with low-speed motors, and the multiple low-speed motors are respectively used for driving the rotation of the multiple friction unloading wheels.

[0010] Preferably, based on the above solution, the plurality of friction unloading wheels are all provided with rounded slope edges.

[0011] Further to the above solution, the right ends of the plurality of inner support rods are all provided with chamfers.

[0012] Further on the basis of the above solution, the right end of the high side frame is fixedly connected with a mounting plate, a bearing hole is opened on the mounting plate, a load-bearing bearing is installed in the bearing hole, and a supporting rotating column is installed in the load-bearing bearing.

[0013] Furthermore, based on the above solution, a discharge opening hole is provided on the high side frame.

[0014] As a further improvement of the above solution, the right end of the cutting frame is fixedly connected to a guide rod, the left end of the high side frame is provided with a guide groove, and the guide rod is slidably fitted in the guide groove.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a heat shrink tubing cutting device, which has the following beneficial effects:

[0017] 1. In the present invention, by installing multiple internal support rods, auxiliary support for the heat shrink tubing that needs to be cut is achieved. During the cutting operation, an internal support feeding structure is adopted, which has good feeding reliability and can also better ensure the cutting quality. Through the cooperation of the installation sleeve, the electric telescopic rod, the cutter frame, the circular cutter and the reduction motor, the heat shrink tubing in the coil is cut after being sheathed on the internal support rod, thereby facilitating subsequent cutting.

[0018] 2. In the present invention, through the cooperation of the top arc frame, the fixed frame, the cutter and the auxiliary pressure spring, the heat shrinkable tube mounted on the inner support rod is cut and formed in sections, thereby realizing the cutting of the heat shrinkable tube. The heat shrinkable tube is cut sequentially by a single synchronous multi-section cutting method, the cutting operation is relatively simple, and less waste is produced.

[0019] 3. In the present invention, a relative installation structure of multiple inner support rods is formed by equipping a driving motor and a mounting plate, and the sequential cutting and forming of the heat shrink tubing can be ensured at the same time, with high operating efficiency. By cooperating with the upper unloading wheel and the lower unloading wheel, the unloading of the multiple sections of heat shrink tubing that have been cut relative to the inner support rods is achieved, which further improves the operating efficiency and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0022] Figure 3 It is a bottom-up schematic diagram of the three-dimensional structure of the present invention as a whole;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure at B in the middle;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the bottom inclined plate, the low side frame and the high side frame of the present invention;

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the local enlarged structure at C in the middle;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the mounting sleeve, the electric telescopic rod and the cutting frame of the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the cutting blade, top arc frame and fixing frame of the present invention;

[0028] Figure 9 It is a schematic diagram of the three-dimensional structure of the rear arc frame, the unloading wheel frame and the friction unloading wheel of the present invention;

[0029] Figure 10 It is a schematic diagram of a partially exploded three-dimensional structure of the lower fixed pipe, the unloading wheel frame and the connecting spring of the present invention.

[0030] Figure: 1. Cutter; 2. Bottom bevel plate; 3. Lower side frame; 4. Upper side frame; 5. Mounting plate; 6. Drive motor; 7. Inner support rod; 8. Top arc frame; 9. Rear arc frame; 10. Fixed frame; 11. Auxiliary pressure spring; 12. Mounting sleeve; 13. Electric telescopic rod; 14. Cutter frame; 15. Circular cutter; 16. Reducer motor; 17. Upper fixing tube; 18. Lower fixing tube; 19. Discharge wheel frame; 20. Connecting spring; 21. Friction discharge wheel; 22. Low-speed motor; 23. Rounded edge; 24. Chamfer; 25. Mounting plate; 26. Support column; 27. Discharge opening; 28. Guide rod; 29. Guide groove. DETAILED DESCRIPTION

[0031] Example

[0032] See also Figure 1-10 The top of the bottom inclined plate 2 is fixedly connected to the low side frame 3 and the high side frame 4. The right end of the low side frame 3 is rotatably connected to the mounting plate 5, and the left end of the low side frame 3 is equipped with a driving motor 6 for rotating the mounting plate 5. The drive motor 6 and the mounting plate 5 are equipped with a relative mounting structure of multiple inner support rods 7. At the same time, the sequential cutting and forming of the heat shrinkable sleeve can be ensured, and the operation efficiency is high. The right end of the mounting plate 5 is rotatably connected to the multiple inner support rods 7. Through the installation of multiple inner support rods 7, auxiliary support for the heat shrinkable sleeve that needs to be cut is achieved. During the cutting operation, an internal support feeding structure is adopted, which has good feeding reliability and can also better ensure the cutting quality. The right ends of the multiple inner support rods 7 are all provided with chamfers 24, which are convenient for the heat shrinkable sleeve to be supported inward. Auxiliary guidance when the rod 7 is put on, the right end of the low side frame 3 is fixedly connected to the top arc frame 8 and the rear arc frame 9, the top arc frame 8 and the rear arc frame 9 are fixedly connected to the high side frame 4, and a plurality of fixing frames 10 are fixedly connected to the inner arc surface of the top arc frame 8, and the plurality of fixing frames 10 are arranged at equal intervals, and the plurality of cutters 1 are rotatably connected to the plurality of fixing frames 10 respectively, and the plurality of cutters 1 are provided with mounting planes, and the plurality of mounting planes are fixedly connected with auxiliary pressure springs 11, and the top ends of the plurality of auxiliary pressure springs 11 are in contact with the top arc frame 8. Through the cooperation of the top arc frame 8, the fixing frame 10, the cutter 1 and the auxiliary pressure spring 11, the segmented cutting and forming of the heat shrinkable sleeve mounted on the inner support rod 7 is formed, thereby realizing the cutting of the heat shrinkable sleeve, and the heat shrinkable sleeve is sequentially cut by a single synchronous multi-segment cutting method, the cutting operation is relatively simple, and less waste is produced.

[0033] It should be further explained that the inner arc surface of the rear arc frame 9 is equipped with multiple upper unloading wheels and multiple lower unloading wheels, and the multiple upper unloading wheels and the multiple lower unloading wheels are alternately spaced up and down and arranged at equal distances. The multiple upper unloading wheels all include upper fixed tubes 17, and the multiple lower unloading wheels all include lower fixed tubes 18. The multiple upper fixed tubes 17 and the multiple lower fixed tubes 18 are all connected to the rear arc frame 9. The multiple upper fixed tubes 17 and the multiple lower fixed tubes 18 are all slidably connected to the unloading wheel frame 19, and the multiple unloading wheel frames 19 are all fixedly connected with connecting springs 20. The multiple connecting springs 20 are respectively connected to the multiple upper fixed tubes 17 and the multiple lower fixed tubes 18. The distance between each adjacent two upper fixed tubes 17 in the multiple upper fixed tubes 17 is equal, and each phase of the multiple lower fixed tubes 18 is equal. The two adjacent lower fixed tubes 18 are also arranged at equal intervals, and the multiple upper fixed tubes 17 and the multiple lower fixed tubes 18 are alternately arranged at upper and lower intervals. The multiple unloading wheel frames 19 are all rotatably connected to the friction unloading wheels 21, and the multiple unloading wheel frames 19 are all equipped with low-speed motors 22. The multiple low-speed motors 22 are respectively used for the rotational drive of the multiple friction unloading wheels 21. Through the cooperation of the upper unloading wheel and the lower unloading wheel, the unloading of the multiple sections of heat shrink tubing relative to the inner support rod 7 is realized, which further improves the working efficiency and has good practicality. The multiple friction unloading wheels 21 are all provided with circular slope edges 23 to facilitate the relative rotation of the inner support rod 7 through the working area of the friction unloading wheel 21, thereby realizing the compression of the friction unloading wheel 21 relative to the inner support rod 7.

[0034] It should be further explained that the left end of the high side frame 4 is fixedly connected to the mounting sleeve 12, the mounting sleeve 12 is installed with an electric telescopic rod 13, the telescopic end of the electric telescopic rod 13 is fixedly connected to the cutter frame 14, the cutter frame 14 is rotatably connected to the circular cutter 15, the left end of the cutter frame 14 is installed with a reduction motor 16, the reduction motor 16 is used to drive the rotation of the circular cutter 15, the right end of the cutter frame 14 is fixedly connected to the guide rod 28, the left end of the high side frame 4 is provided with a guide groove 29, the guide rod 28 slides in the guide groove 29, through the mounting sleeve 12, the electric The cooperation of the movable telescopic rod 13, the cutting frame 14, the circular cutter 15 and the reduction motor 16 forms the cutting of the heat shrink tubing after it is put on the inner support rod 7, thereby facilitating the subsequent cutting. The right end of the high side frame 4 is fixedly connected to the mounting plate 25, and a bearing hole is provided on the mounting plate 25. A load-bearing bearing is installed in the bearing hole, and a supporting rotating column 26 is installed in the load-bearing bearing to form an auxiliary bracket for storing the heat shrink tubing in the disc. A unloading opening hole 27 is provided on the high side frame 4 to form a passage space for unloading the heat shrink tubing relative to the inner support rod 7 after cutting.

[0035] The drive motor 6, electric telescopic rod 13, reduction motor 16 and low-speed motor 22 in this embodiment are all conventional equipment purchased on the market and well known to those skilled in the art. They can also be customized according to actual needs. In this patent, we only use them and do not improve their structure and function. For those skilled in the art, their setting method, installation method and electrical connection method can be debugged according to the requirements of their instruction manual, and will not be described in detail here.

[0036] In summary, the working process of the heat shrink tubing cutting device is as follows: when in use, the heat shrink tubing cutting device is first placed at the desired location, and the drive motor 6, the electric telescopic rod 13, the reduction motor 16 and the low-speed motor 22 are respectively connected to the corresponding control circuits according to their respective instructions, and the drive motor 6, the electric telescopic rod 13, the reduction motor 16 and the low-speed motor 22 are equipped with a central control host to achieve coordinated work. When it is necessary to cut the heat shrink tubing in a roll, the heat shrink tubing in a roll is first placed on the supporting rotating column 26, and then the tube head of the heat shrink tubing on the heat shrink tubing in the roll is pulled and sleeved on an inner support rod 7 near the front side among the multiple inner support rods 7. When the heat shrink tubing moves to the left to an appropriate position along the inner support rod 7, the electric telescopic rod 13 works to push the cutting frame 14 forward, and then the reduction motor 16 works to drive the circular cutter 15 to rotate, so as to achieve the cutting between the heat shrink tubing sleeved on the inner support rod 7 and the entire roll of heat shrink tubing. During the cutting process, the circular cutter 15 is pressed against the inner support rod 7, and the rotation of the circular cutter 15 can drive the inner support rod 7 to rotate under the action of friction. If the circular cutter 15 slips relative to the inner support rod 7, the inner support rod 7 can also be manually assisted to rotate to ensure the circular cutting of the heat shrinkable sleeve. After the cutting is completed, the driving motor 6 works to drive the multiple inner support rods 7 to move step by step synchronously, and when the inner support rod 7 with the heat shrinkable sleeve passes through the top arc frame 8, the multiple inner support rods 7 come into relative contact with the multiple cutters 1, thereby achieving multi-segment cutting of the heat shrinkable sleeve, accompanied by the stepping movement of the multiple inner support rods 7, when the cut heat shrinkable sleeve moves to the front of the rear arc frame 9, the multiple friction unloading wheels 21 rotate to complete the rightward push of the cut heat shrinkable sleeve on the inner support rod 7, thereby completing the auxiliary unloading of the heat shrinkable sleeve on the inner support rod 7, and at the same time, a driving structure can be provided for the multiple inner support rods 7 to realize that the multiple inner support rods 7 are all driven to rotate relative to the mounting plate 5, thereby further improving the circular cutting efficiency of the heat shrinkable sleeve.

Claims

1. A heat shrink tubing cutting device, comprising a plurality of cutting knives (1), characterized in that: The invention also includes a bottom inclined plate (2), the top end of the bottom inclined plate (2) is fixedly connected to a low side frame (3) and a high side frame (4), the right end of the low side frame (3) is rotatably connected to a mounting plate (5), and the left end of the low side frame (3) is installed with a driving motor (6) for rotating and driving the mounting plate (5), the right end of the mounting plate (5) is rotatably connected to a plurality of inner support rods (7), the right end of the low side frame (3) is fixedly connected to a top arc frame (8) and a rear arc frame (9), the top arc frame (8) and the rear arc frame (9) are both fixedly connected to the high side frame (4), a plurality of fixed frames (10) are fixedly connected to the inner arc surface of the top arc frame (8), and the plurality of fixed frames (10) are arranged at equal intervals, and the plurality of cutting knives (1) are respectively rotatably connected to the plurality of fixed frames (10), and the plurality of cutting knives (1) are respectively rotatably connected to the plurality of fixed frames (10), and the plurality of cutting knives (1) are A mounting plane is provided on each of the mounting planes, and auxiliary pressure springs (11) are fixedly connected to the mounting planes. The top ends of the auxiliary pressure springs (11) are in contact with the top arc frame (8). The inner arc surface of the rear arc frame (9) is provided with a plurality of upper discharge wheels and a plurality of lower discharge wheels. The plurality of upper discharge wheels and the plurality of lower discharge wheels are alternately spaced up and down and are arranged at equal distances. The left end of the high side frame (4) is fixedly connected with a mounting sleeve (12), an electric telescopic rod (13) is installed in the mounting sleeve (12), and the telescopic end of the electric telescopic rod (13) is fixedly connected with a cutting frame (14), a circular cutting knife (15) is rotatably connected in the cutting frame (14), and a reduction motor (16) is installed at the left end of the cutting frame (14), and the reduction motor (16) is used for driving the circular cutting knife (15) in rotation.

2. The heat shrink tubing cutting device according to claim 1, characterized in that: The plurality of upper unloading wheels each include an upper fixed tube (17), the plurality of lower unloading wheels each include a lower fixed tube (18), the plurality of upper fixed tubes (17) and the plurality of lower fixed tubes (18) are each connected to the rear arc frame (9), the plurality of upper fixed tubes (17) and the plurality of lower fixed tubes (18) are each slidably connected to a unloading wheel frame (19), the plurality of unloading wheel frames (19) are each fixedly connected to a connecting spring (20), the plurality of connecting springs (20) are respectively connected to the plurality of upper fixed tubes (17) and the plurality of lower fixed tubes (18), and the plurality of Each adjacent two upper fixed tubes (17) in the upper fixed tubes (17) are arranged at equal intervals, and each adjacent two lower fixed tubes (18) in the plurality of lower fixed tubes (18) are also arranged at equal intervals. The plurality of upper fixed tubes (17) and the plurality of lower fixed tubes (18) are alternately arranged at upper and lower intervals. Friction discharge wheels (21) are rotatably connected in the plurality of discharge wheel frames (19). Low-speed motors (22) are installed on the plurality of discharge wheel frames (19). The plurality of low-speed motors (22) are respectively used for driving the plurality of friction discharge wheels (21) in rotation.

3. The heat shrink tubing cutting device according to claim 2, characterized in that: The plurality of friction discharge wheels (21) are all provided with rounded slope edges (23).

4. The heat shrink tubing cutting device according to claim 3, characterized in that: The right ends of the plurality of inner support rods (7) are all provided with chamfers (24).

5. The heat shrink tubing cutting device according to claim 4, characterized in that: The right end of the high side frame (4) is fixedly connected with a mounting plate (25), the mounting plate (25) is provided with a bearing hole, a load-bearing bearing is installed in the bearing hole, and a supporting rotating column (26) is installed in the load-bearing bearing.

6. The heat shrink tubing cutting device according to claim 5, characterized in that: The high side frame (4) is provided with a discharge opening hole (27).

7. The heat shrink tubing cutting device according to claim 6, characterized in that: The right end of the cutting frame (14) is fixedly connected with a guide rod (28), and the left end of the high side frame (4) is provided with a guide groove (29), and the guide rod (28) is slidably fitted in the guide groove (29).

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