A hose cutting device

Abstract

The utility model relates to hose cutting device technical field, especially a kind of hose cutting device;Including: base;Linear motor, fixedly connected on base;Moving frame, slidingly connected on base, with the control end of linear motor is fixed, by linear motor drive moves back and forth;Pad shaft, fixedly connected in the middle part of moving frame, for supporting the hose to be cut;Collecting box, fixedly connected on base, located the below of pad shaft, it is equipped with stripping arm on it, the stripping arm is close to pad shaft, for limiting hose position.The utility model realizes automatic feeding by material shifting roller and second motor, realizes accurate cutting by the operation data of material shifting roller, and realizes automatic unloading by the collaborative action between pad shaft, moving frame and the stripping arm of collecting box, to effectively solve the problem of poor cutting consistency, complicated manual operation and low efficiency in prior art, so as to improve the production efficiency and product quality of hose cutting.

Description

Technical Field

[0001] This utility model relates to the technical field of hose cutting devices, and in particular to a hose cutting device. Background Technology

[0002] Rubber hoses, as a common type of flexible conduit, are widely used in industry, agriculture, construction, and daily life, such as hydraulic systems, water pipelines, and gas transmission. Before use, rubber hoses often need to be cut to specific lengths according to actual needs.

[0003] Existing hose cutting devices mainly include pad rollers, cutters, and drive mechanisms. During operation, the hose is manually placed onto the pad rollers, and the cutter is driven to make a circular displacement along the pad rollers to complete the circular cutting of the hose.

[0004] However, it has obvious defects: First, the control of the cutting length depends entirely on manual feeding, that is, the length of the rubber tube inserted into the pad shaft needs to be manually adjusted before each cutting, which is subject to human operation error. After the rubber tube is cut, there is a length deviation, which cannot meet the needs of high-precision application scenarios and makes it difficult to guarantee the consistency of batch cutting; Second, the feeding and unloading of the entire cutting process requires manual participation, which is cumbersome, labor-intensive and affects production efficiency. Utility Model Content

[0005] This invention provides a hose cutting device that can achieve automatic feeding and unloading as well as precise fixed-length cutting, in order to solve the problems of poor consistency and low efficiency in the prior art.

[0006] The technical implementation scheme of this utility model is as follows: a hose cutting device, comprising: a base; a linear motor fixedly connected to the base; a movable frame slidably connected to the base and fixed to the control end of the linear motor, driven by the linear motor to move back and forth; a pad shaft fixedly connected to the middle of the movable frame for supporting the hose to be cut; a collection box fixedly connected to the base, located below the pad shaft, and having a stripping arm on it, the stripping arm being close to the pad shaft for limiting the position of the hose; and a processing seat fixedly connected to the base, located on the front side of the movable frame, with a slot in its middle for the pad shaft to pass through. The device comprises: a controller, fixedly connected to the processing base, used to control the operation of the device; a ring-cutting mechanism, fixedly connected to the empty slot in the center of the processing base, used to perform ring-cutting on the rubber tube sleeved on the pad shaft; a feeding seat, fixedly connected to the base and located on the front side of the processing base, used to place the rubber tube to be cut; a first mounting frame, fixedly connected to the feeding seat; a second motor, fixedly connected to the first mounting frame; and a transfer roller, rotatably connected to the first mounting frame, in contact with the rubber tube placed on the feeding seat, and coaxially connected to the output shaft of the second motor, driven to rotate by the second motor.

[0007] More preferably, the circumferential cutting mechanism includes: a mounting plate fixedly connected to the processing base; a first motor fixedly connected to the mounting plate; a gear rotatably connected to the mounting plate and coaxially fixed with the output shaft of the first motor, driven to rotate by the first motor; a connecting ring rotatably connected to the outer edge of the central slot of the processing base; a gear ring fixedly connected to the connecting ring and meshing with the gear; a support slidably connected to the connecting ring and moving radially along the connecting ring; a cutter holder fixedly connected to the support for cutting the rubber tube in conjunction with the pad shaft; a first return spring fixedly connected between the connecting ring and the support; an electric push rod fixedly connected to the processing base; a docking plate fixedly connected to the end of the electric push rod and controlled to move back to its original position by the electric push rod; a starting groove is provided in the processing base, and the docking plate is located therein. The action of the first return spring pushes the support and the cutter holder into the starting groove and into contact with the docking plate; the displacement of the docking plate pushes the support and the cutter holder out of the starting groove and into contact with the rubber tube.

[0008] More preferably, the device further includes: a second mounting frame, symmetrically fixedly connected to the left and right sides of the feeding seat; a connecting block, slidably connected to the second mounting frames on both sides; a second return spring, fixedly connected between the connecting block and the corresponding second mounting frame; a pressure roller, rotatably connected to the connecting block, with the second return spring acting to keep its wheel surface in contact with the rubber tube placed on the feeding seat; a ring of evenly distributed slots is provided on the rotating shaft of the pressure roller, each slot having a structural feature of one side being an inclined surface and the other side being a straight surface; a locking block, slidably connected to the second mounting frame, with its front end having an inclined surface structure matching the locking slot; and a third return spring, fixedly connected between the locking block and the second mounting frame, with the third return spring acting to make the locking block cooperate with the locking slot to restrict the unidirectional rotation of the pressure roller.

[0009] More preferably, the device further includes: a ball bearing, rotatably connected to the inner surface of the feeding seat, forming rolling contact with the rubber tube to reduce frictional resistance.

[0010] More preferably, the device further includes a friction layer, which is fixedly connected to the roller surface of the transfer roller and the wheel surface of the pressure roller, respectively, to increase the friction when the two come into contact with the hose.

[0011] More preferably, the device further includes a guide surface located on the front side of the pad shaft, the diameter of which gradually decreases from front to back, for automatically guiding and centering when the tubing is inserted into the pad shaft.

[0012] Compared with the prior art, the present invention has the following advantages: The present invention achieves automatic feeding through a transfer roller and a second motor, achieves precise cutting by controlling the operation data of the transfer roller, and achieves automatic unloading through the coordinated action of the pad shaft, the moving frame and the unloading arm of the collection box, so as to effectively solve the problems of poor cutting consistency, cumbersome manual operation and low efficiency in the prior art, thereby improving the production efficiency and product quality of hose cutting.

[0013] In this invention, the ring-cutting mechanism can retract the blade holder into the processing seat when not cutting, maintaining a distance from the hose to ensure smooth and unobstructed hose feeding, thus improving the coordination of continuous operation. Furthermore, by setting the driving force component on the processing seat, it does not need to rotate with the blade holder, avoiding the problem of its wiring getting tangled or worn during rotation, thereby improving the reliability and service life of the ring-cutting mechanism.

[0014] This invention uses a unidirectional rotating pressure roller to prevent the hose from retracting or sliding during the feeding process, enhances the control precision of the transfer roller on the hose conveying, avoids possible relative displacement between the transfer roller and the hose, thereby ensuring the accuracy of the feeding length and the consistency of the cutting sections, and further improves the overall cutting quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the connection structure of the ring-cutting mechanism of this utility model.

[0017] Figure 3 This is a cross-sectional view of the connection structure of the electric push rod, the docking plate, and the tool holder of this utility model.

[0018] Figure 4 This is a cross-sectional view of the operating state of the tool holder after it has been pushed out.

[0019] Figure 5 This is a schematic diagram showing the positional relationship between the pad shaft and the collection box of this utility model.

[0020] Figure 6 This is a cross-sectional view showing the positional relationship between the transfer roller and the second mounting frame of this utility model.

[0021] Figure 7 This is a cross-sectional view of the connection structure between the pressure roller and the second mounting frame of this utility model.

[0022] Figure 8 This is a cross-sectional view of the mating structure of the card slot and card block of this utility model.

[0023] The meanings of the reference numerals in the figure are as follows: 1. Base, 2. Linear motor, 3. Moving frame, 4. Shaft pad, 5. Machining seat, 6. Controller, 7. Mounting plate, 8. First motor, 9. Gear, 10. Connecting ring, 11. Gear ring, 12. Support, 13. Tool holder, 14. First return spring, 15. Electric push rod, 16. Connecting plate, 17. Feeding seat, 18. First mounting frame, 19. Second motor, 20. Transfer roller, 21. Ball bearing, 22. Second mounting frame, 23. Second return spring, 24. Connecting block, 25. Pressure roller, 26. Slot, 27. Locking block, 28. Third return spring, 29. Friction layer, 30. Guide surface, 31. Collection box. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0025] Example: A hose cutting device, such as Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, the system includes: a base 1; a linear motor 2, fixedly mounted on the base 1; a moving frame 3, slidably mounted on the base 1 and fixed to the control end of the linear motor 2, driven by the linear motor 2 to move back and forth; a pad shaft 4, fixedly mounted in the middle of the moving frame 3, used to support the rubber tube to be cut; a collection box 31, fixedly mounted on the base 1, located below the pad shaft 4, with a stripping arm on it. This stripping arm is close to the pad shaft 4 and can block the rubber tube when the pad shaft 4 moves backward, causing it to move relative to the pad shaft 4, thereby achieving automatic stripping; a processing seat 5, fixedly mounted on the base 1, located on the front side of the moving frame 3, with a slot in its middle for the pad shaft 4 to pass through; and a controller 6. The device is fixedly installed on the processing base 5 for controlling its operation; the ring cutting mechanism is fixedly installed in the empty slot at the center of the processing base 5 for ring cutting of the rubber tube sleeved on the pad shaft 4; the feeding seat 17 is fixedly installed on the base 1 and located on the front side of the processing base 5 for placing the rubber tube to be cut; the first mounting frame 18 is fixedly installed on the top rear side of the feeding seat 17; the second motor 19 is fixedly installed on the first mounting frame 18; the transfer roller 20 is rotatably installed on the first mounting frame 18, contacts the rubber tube placed on the feeding seat 17, and is coaxially connected to the output shaft of the second motor 19, and is driven by the second motor 19 to achieve automatic feeding of the rubber tube.

[0026] When using this device to cut rubber hoses, first place the rubber hose on the feeding seat 17; start the second motor 19 to drive the transfer roller 20 to rotate, conveying the rubber hose backward so that it passes through the pad shaft 4; then start the ring cutting mechanism to ring cut the rubber hose; after the cutting is completed, the target section of rubber hose will remain on the pad shaft 4; at this time, start the linear motor 2 to drive the moving frame 3 to move the pad shaft 4 backward, while the cut rubber hose is blocked by the unloading arm on the collection box 31 and cannot continue to move backward with the pad shaft 4, thus falling off the pad shaft 4 and into the collection box 31; after unloading is completed, the moving frame 3 resets, so that the pad shaft 4 passes through the empty slot in the center of the processing seat 5 again, ready for the next cutting operation; by setting the speed and intermittent start and stop frequency of the second motor 19, the length of the rubber hose conveyed by the transfer roller 20 each time can be precisely controlled, thereby achieving fixed-length cutting and ensuring the consistency of the length of the cut section.

[0027] In summary, this device achieves automatic feeding through the transfer roller 20 and the second motor 19, precise cutting through the control of the operating data of the transfer roller 20, and automatic unloading through the coordinated action of the pad shaft 4, the moving frame 3 and the unloading arm of the collection box 31. This effectively solves the problems of poor cutting consistency, cumbersome manual operation and low efficiency in the prior art, thereby improving the production efficiency and product quality of hose cutting.

[0028] like Figures 1-4 As shown, the ring-cutting mechanism includes: a mounting plate 7, fixedly mounted on the processing base 5, located above the central slot of the processing base 5; a first motor 8, fixedly mounted on the mounting plate 7; a gear 9, rotatably mounted on the mounting plate 7 and coaxially fixed with the output shaft of the first motor 8, driven to rotate by the first motor 8; a connecting ring 10, rotatably mounted on the outer edge of the central slot of the processing base 5; a gear ring 11, fixedly mounted on the connecting ring 10, meshing with the gear 9 to form a transmission structure; a support 12, slidably mounted on the connecting ring 10, moving radially along the connecting ring 10; a cutter holder 13, fixedly mounted on the support 12, used to cooperate with the pad shaft 4 to cut the rubber tube; and a first return spring. Spring 14 is fixedly installed between connecting ring 10 and support 12; electric push rod 15 is fixedly installed on machining base 5; docking plate 16 is fixedly installed at the end of electric push rod 15 and is controlled by electric push rod 15 to move back and forth; machining base 5 is provided with a starting groove, and docking plate 16 is located in it. When support 12 and tool holder 13 rotate with connecting ring 10 to the position corresponding to the starting groove, under the action of the first return spring 14, support 12 and tool holder 13 will fall into the starting groove and contact docking plate 16; electric push rod 15 operates to control the displacement of docking plate 16, pushing support 12 and tool holder 13 out of the starting groove and into contact with the hose.

[0029] When using the circumferential cutting mechanism to circumferentially cut the hose: the electric push rod 15 extends, pushing the docking plate 16 to push the support 12 and the cutter holder 13 out of the starting groove, so that the cutter holder 13 contacts the surface of the hose. The first return spring 14 is compressed during this process. At the same time, after the docking plate 16 moves out, it docks with the edge of the central empty groove of the processing seat 5 to form a complete annular limiting structure. Then the first motor 8 is started, which drives the gear ring 11 through the gear 9, causing the connecting ring 10 and the cutter holder 13 mounted on it to move in a circular motion around the hose to realize the circumferential cutting operation. After the cutting is completed, the first motor 8 is turned off, the electric push rod 15 is retracted, and the docking plate 16 is pulled back to its original position. The cutter holder 13 is disengaged from the surface of the hose under the action of the first return spring 14, and falls back into the starting groove when it rotates back to the starting groove position with the connecting ring 10, preparing for the next cutting.

[0030] The circumferential cutting mechanism is structured as follows: In the non-cutting state, the cutter holder 13 can be retracted into the processing seat 5, maintaining a distance from the hose, ensuring smooth and unobstructed hose feeding and improving the coordination of the device during continuous operation; the driving force component is located on the processing seat 5 and does not need to rotate with the cutter holder 13, avoiding the problem of its wiring getting tangled or worn during rotation, thus improving the reliability and service life of the circumferential cutting mechanism.

[0031] like Figure 8 As shown, the device further includes: a second mounting frame 22, symmetrically fixedly mounted on the left and right sides of the rear of the feeding seat 17; a connecting block 24, slidably mounted in the second mounting frames 22 on both sides; a second return spring 23, fixedly mounted between the connecting block 24 and the corresponding second mounting frame 22; a pressure roller 25, rotatably mounted on the connecting block 24, with the second return spring 23 acting to keep its wheel surface in contact with the rubber tube placed on the feeding seat 17; a ring of evenly distributed slots 26 on the rotating shaft of the pressure roller 25, each slot 26 having a structural feature of one side being an inclined surface and the other side being a flat surface; a locking block 27, slidably mounted in the second mounting frame 22, with its front end having an inclined surface structure matching the slot 26; and a third return spring 28, fixedly mounted between the locking block 27 and the second mounting frame 22, with the third return spring 28 acting to make the locking block 27 cooperate with the slot 26 to restrict the unidirectional rotation of the pressure roller 25.

[0032] During operation, after the hose is placed on the feeding seat 17, the pressure rollers 25 on both sides press the hose from the left and right sides under the action of the second return spring 23. When the hose is conveyed backward, the pressure rollers 25 are driven to rotate. During this process, due to the cooperation between the locking block 27 and the locking groove 26, the pressure rollers 25 can only rotate in the feeding direction, that is, backward, and are locked in the opposite direction.

[0033] Therefore, the unidirectional rotating pressure roller 25 can effectively prevent the hose from retracting or sliding during the feeding process, enhance the control accuracy of the transfer roller 20 on the hose conveying, avoid the relative displacement that may occur between the transfer roller 20 and the hose, thereby ensuring the accuracy of the feeding length and the consistency of the cutting section, and further improving the overall cutting quality.

[0034] like Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the device also includes: a ball bearing 21, rotatably mounted on the inner surface of the feeding seat 17, forming rolling contact with the hose to reduce frictional resistance during hose conveying, reduce hose surface wear, and improve the stability and displacement control accuracy of the feeding process; a friction layer 29, fixedly mounted on the roller surface of the transfer roller 20 and the wheel surface of the pressure roller 25, to increase the frictional force between the two and the hose, ensuring that the transfer roller 20 can drive the hose displacement more accurately and avoid slippage, and that the pressure roller 25 can more reliably achieve unidirectional limiting, effectively preventing the hose from retracting. The two work together to ensure the accuracy of fixed-length hose feeding; and a guide surface 30, located on the front side of the pad shaft 4, with its diameter gradually decreasing from front to back, used to automatically guide and center the hose when it is fitted into the pad shaft 4, reducing alignment difficulty and improving the convenience and efficiency of the feeding operation.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may 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 hose cutting device, characterized in that: include: Base (1); A linear motor (2) is fixedly connected to the base (1); a moving frame (3) is slidably connected to the base (1) and fixed to the control end of the linear motor (2), and is driven by the linear motor (2) to move back and forth; a pad shaft (4) is fixedly connected to the middle of the moving frame (3) and is used to support the rubber tube to be cut; a collection box (31) is fixedly connected to the base (1) and located below the pad shaft (4), and is provided with a stripping arm, which is close to the pad shaft (4) and is used to limit the position of the rubber tube; a processing seat (5) is fixedly connected to the base (1) and is located on the front side of the moving frame (3), and is provided with a slot in the middle for the pad shaft (4) to pass through; a controller (6) is fixedly connected to the processing seat (5). The device is operated by a circumferential cutting mechanism, which is fixedly connected to the empty slot in the center of the processing seat (5) and is used to perform circumferential cutting on the rubber tube sleeved on the pad shaft (4); the feeding seat (17) is fixedly connected to the base (1) and is located on the front side of the processing seat (5) for placing the rubber tube to be cut; the first mounting frame (18) is fixedly connected to the feeding seat (17); the second motor (19) is fixedly connected to the first mounting frame (18); the transfer roller (20) is rotatably connected to the first mounting frame (18), contacts the rubber tube placed on the feeding seat (17), and is coaxially connected to the output shaft of the second motor (19) and is driven to rotate by the second motor (19).

2. The hose cutting device as described in claim 1, characterized in that: The circumferential cutting mechanism includes: a mounting plate (7) fixedly connected to the machining base (5); a first motor (8) fixedly connected to the mounting plate (7); a gear (9) rotatably connected to the mounting plate (7) and coaxially fixed with the output shaft of the first motor (8), and driven to rotate by the first motor (8); a connecting ring (10) rotatably connected to the outer edge of the central slot of the machining base (5); a gear ring (11) fixedly connected to the connecting ring (10) and meshing with the gear (9); a support (12) slidably connected to the connecting ring (10) and moving radially along the connecting ring (10); and a tool holder (13) fixedly connected to the support (12) for use with the pad shaft (4). The tool is designed to cut the rubber tube. A first return spring (14) is fixedly connected between the connecting ring (10) and the support (12). An electric push rod (15) is fixedly connected to the processing seat (5). A docking plate (16) is fixedly connected to the end of the electric push rod (15) and is controlled by the electric push rod (15) to move back to the starting position. The processing seat (5) is provided with a starting groove, and the docking plate (16) is located in it. The action of the first return spring (14) pushes the support (12) and the tool holder (13) into the starting groove and into contact with the docking plate (16). The displacement of the docking plate (16) pushes the support (12) and the tool holder (13) out of the starting groove and into contact with the rubber tube.

3. The hose cutting device as described in claim 1, characterized in that: The device further includes: a second mounting frame (22), symmetrically fixedly connected to the left and right sides of the feeding seat (17); a connecting block (24), slidably connected to the second mounting frames (22) on both sides respectively; a second return spring (23), fixedly connected between the connecting block (24) and the corresponding second mounting frame (22); a pressure roller (25), rotatably connected to the connecting block (24), and the second return spring (23) acting to keep its wheel surface in contact with the rubber tube placed on the feeding seat (17); and the pressure roller (25) The rotating shaft of the device is provided with a ring of evenly distributed slots (26), each slot (26) having a structural feature of one side being an inclined surface and the other side being a flat surface; the card block (27) is slidably connected in the second mounting frame (22), and its front end is provided with an inclined surface structure that matches the slot (26); the third return spring (28) is fixedly connected between the card block (27) and the second mounting frame (22), and the third return spring (28) acts to make the card block (27) cooperate with the slot (26) to restrict the pressure roller (25) from rotating in one direction.

4. The hose cutting device as described in claim 1, characterized in that: The device further includes: a ball bearing (21), which is rotatably connected to the inner surface of the feeding seat (17) and forms rolling contact with the rubber tube to reduce frictional resistance.

5. The hose cutting device as described in claim 3, characterized in that: The device further includes a friction layer (29), which is fixedly connected to the roller surface of the transfer roller (20) and the wheel surface of the pressure roller (25) to increase the friction between the two and the hose.

6. The hose cutting device as described in claim 1, characterized in that: The device further includes a guide surface (30) located on the front side of the pad shaft (4), the diameter of which gradually decreases from front to back, and is used to automatically guide and center the rubber tube when it is inserted into the pad shaft (4).

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