Rubber tube cutting device

Abstract

The utility model discloses a rubber tube cutting device, and relates to the technical field of rubber tube cutting equipment. According to the rubber tube cutting device, driving arms are symmetrically connected to the two sides of a driving ring, lead screws are arranged on the driving arms in a matched mode, the lead screws are rotationally connected with a vertical wall, linkage wheels are arranged on the lead screws, and a driving device is arranged on the linkage wheels in a matched mode; the driving device and the lead screw can drive the cutter control arm to control the cutter to feed along the sliding groove at a constant speed to achieve cutting of the rubber pipe, an original air cylinder is replaced with the lead screw, and the impulsive force and speed generated when the cutter abuts against the pipe wall are reduced; and the cutting quality is prevented from being reduced due to the fact that a cutter is damaged when a thick-wall rubber pipe is cut and the rubber pipe is extruded and deformed when a thin-wall rubber pipe is cut.

Description

Technical Field

[0001] The utility model relates to the technical field of hose cutting equipment, in particular to a hose cutting device. Background Art

[0002] In the field of hose production, in order to facilitate production, storage and transportation, the hose is produced in a long length. However, during use, the hose sometimes needs to be cut. The hose is usually prepared into a long tube first, and then the long tube is cut into short tubes as needed. The cutting of the long tube is achieved by a tube cutting machine. During the cutting process, the hose is usually fixed on a fixing mechanism, and then the cutting mechanism is started for cutting.

[0003] At present, when cutting hoses to a fixed length, the cutting method of cutting is generally adopted. The existing cutting devices all use cylinders to control the feed amount of the cutter. However, there are two problems when using cylinders: 1. When cutting thick-walled hoses, the impact force and speed of the cutter controlled by the cylinder against the hose wall are large, and the cutter cannot cut through the hose wall in a short time, which will cause damage to the cutter;

[0004] 2. When cutting a thin-walled hose, the cutter will easily squeeze and deform the hose after it contacts the wall, resulting in an uneven cut.

[0005] Therefore, there is an urgent need for a hose cutting device that can protect the cutter when cutting thick-walled hoses and ensure the cutting quality when cutting thin-walled hoses. Utility Model Content

[0006] In view of the above technical problems, the utility model provides a hose cutting device, which is used to solve the problem that when the existing tool feed is controlled by a cylinder, the impact force of the tool abutting against the pipe wall is large, which leads to the damage of the tool when cutting thick-walled hoses, and the problem that when cutting thin-walled hoses, the tool abuts against the pipe wall and easily squeezes and deforms the hose, resulting in uneven incisions.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions:

[0008] The cam is provided with a plurality of guide wheels, and the guide wheels are provided with a plurality of guide wheels, and the guide wheels are provided with a plurality of guide wheels respectively.

[0009] The guide sleeve is provided with a knife control arm, and the knife control arm is provided with a knife control long hole;

[0010] The feed pipe is provided with a knife control disc, and a slide groove is opened on the knife control disc corresponding to the position of the knife control arm, a slider is provided in the slide groove, a tool is provided on the slider along the center direction of the feed pipe, and a slide opening is provided on the slider corresponding to the position of the knife control arm, a knife control column is provided in the slide opening, and the knife control column cooperates with the knife control long hole. The slider is extended and retracted along the slide groove under the action of the knife control arm, and the feed pipe rotates synchronously under the linkage of the knife control arm.

[0011] Furthermore, the driving device drives the two lead screws to rotate synchronously.

[0012] Furthermore, a limiting plate is respectively provided on both sides of the slide groove.

[0013] Furthermore, a movable opening is provided at the position of the knife control disc corresponding to the knife control arm, and the knife control arm cooperates with the knife control column through the movable opening.

[0014] Furthermore, a knife entry opening is provided at a position of the feed pipe corresponding to the knife.

[0015] Furthermore, a mounting frame is provided between the two vertical walls, and a travel control device is provided on the mounting frame.

[0016] Furthermore, the travel control device includes two proximity switches, and the two proximity switches are located on the moving path of the driving arm.

[0017] Furthermore, the distance between the two proximity switches is no greater than the length of the knife control long hole.

[0018] In summary, the beneficial technical effects of the utility model are:

[0019] (1) The drive device and the lead screw drive the knife control arm to achieve uniform feeding of the tool, replacing the original cylinder feeding method of the tool, reducing the speed and impact of the tool feeding, avoiding tool damage when cutting thick-walled hoses and extrusion deformation of thin-walled hoses, and ensuring cutting quality.

[0020] (2) By setting driving arms on both sides of the driving ring and using a driving device to control the synchronous rotation of the two lead screws, the directionality of the guide sleeve on the feed tube is improved, the jamming problem under the traction of a driving arm is avoided, and the uniform speed of the feed is further ensured.

[0021] (3) Two proximity switches can be used to control the movement of the drive arm, further ensuring the range of the tool advance and retract and preventing the slider from slipping out of the slide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 yes Figure 1 A schematic diagram of the structure from another angle;

[0024] Figure 3 yes Figure 1 The structural diagram of the base and the vertical wall is hidden;

[0025] Figure 4 yes Figure 3 Schematic diagram from another angle;

[0026] Figure 5 It is a schematic diagram of the cooperation between the pulley and the guide sleeve;

[0027] Figure 6 It is a schematic diagram of the feed pipe and related structures.

[0028] 1. Base; 2. Vertical wall; 3. Feed hole; 4. Feed pipe; 5. Feed pipe; 6. First bearing; 7. Pulley; 8. Guide sleeve; 9. Second bearing; 10. Drive ring; 11. Guide rod; 12. Guide hole; 13. Drive arm; 14. Lead screw; 15. Linkage wheel; 16. Drive device; 17. Rotating device; 18. Knife control arm; 19. Knife control long hole; 20. Knife control disc; 21. Slide; 22. Sliding block; 23. Knife holder; 24. Knife; 25. Knife control column; 26. Knife entry; 27. Proximity switch; 28. Limit plate. DETAILED DESCRIPTION

[0029] The present invention will be described clearly and completely below in conjunction with the embodiments.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] See attached Figure 1-6 , shown is a hose cutting device, including a base 1, two vertical walls 2 are fixed in parallel on the base 1, and feeding holes 3 for the passage of the hose are concentrically opened on the two vertical walls 2, one of the vertical walls 2 is fixed with a feeding pipe 4 at the position of the feeding hole 3, and the other vertical wall 2 is provided with a rotating bearing at the position of the feeding hole 3, and the vertical wall 2 is provided with a feed pipe 5 through the rotating bearing sleeve. When cutting, the hose enters from the feeding hole 3 at one end of the feed pipe 5, passes through the feed pipe 5 and the feeding pipe 4, and then passes through the other feeding hole 3, wherein the feeding pipe 4 is sleeved with a first bearing 6, and the outer circle of the first bearing 6 is sleeved with a pulley 7, and the pulley 7 can rotate along the feeding pipe 4 with the assistance of the first bearing 6, and the base 1 is provided with a rotating device 17 below the pulley 7, and the rotating device 17 is provided with a rotating wheel, and a rotating wheel and the pulley 7 are provided between the rotating wheel and the pulley 7. The belt, the rotating device 17 uses the belt to drive the pulley 7 to rotate, the feeding tube 4 is located on one side of the pulley 7 and is movably sleeved with a guide sleeve 8, the inner diameter of the guide sleeve 8 is larger than the outer diameter of the feeding tube 4, and can slide back and forth along the guide sleeve 8, and the pulley 7 is fixedly provided with two guide rods 11 on one side of the guide sleeve 8, and the guide sleeve 8 is provided with a guide hole 12 at the position corresponding to the guide rod 11, and the guide rod 11 is plugged and matched with the guide sleeve 8, and the guide sleeve 8 can be transmitted to the torque through the pulley 7 through the guide rod 11, so as to drive the guide sleeve 8 to rotate, and at the same time, a second bearing 9 is sleeved on the guide sleeve 8, and a driving ring 10 is sleeved on the outer circle of the second bearing 9, and the second bearing 9 realizes that the guide sleeve 8 and the driving ring 10 are independent and do not interfere with each other, and at the same time, the force on the driving ring 10 can be transmitted to the guide sleeve 8 through the second bearing 9;

[0033] A driving arm 13 is symmetrically provided on both sides of the driving ring 10, and a threaded hole is provided at one end of the driving arm 13 away from the driving ring 10. A lead screw 14 is provided in cooperation with the threaded hole. The two ends of the lead screw 14 are rotatably connected with the corresponding vertical wall 2 respectively, and a linkage wheel 15 is provided on each lead screw 14. At the same time, a support plate is provided between the tops of the two vertical walls 2, and a driving device 16 is provided on the support plate. The output end of the driving device 16 is provided with two gears that cooperate with the linkage wheel 15 chain, and then the two lead screws 14 are driven to rotate synchronously through the driving device 16. When cutting, the guide sleeve 8 is driven to rotate by the guide rod 11 through the pulley 7, and at the same time, the lead screw 14 further acts on the driving ring 10 and the guide sleeve 8 to slide along the feeding tube 4 through the driving arm 13;

[0034] At the same time, a knife control arm 18 is fixed to the guide sleeve 8 in the direction of the feed pipe 5, and a knife control long hole 19 is obliquely opened on the knife control arm 18 along the length direction, wherein the length between the end of the knife control long hole 19 close to the guide sleeve 8 and the axis of the feed pipe 4 is shorter than the length between the other end and the axis of the feed pipe 4;

[0035] At the same time, a knife control disc 20 is fixedly provided on the feed pipe 5, and a movable hole is provided on the knife control disc 20 corresponding to the position of the knife control arm 18. When the knife control arm 18 moves at a uniform speed under the action of the lead screw 14, it can pass through the knife control disc 20 through the movable hole. A slide groove 21 is provided at the position of the movable hole of the knife control disc 20, and a slider 22 is slidably provided in the slide groove 21. A tool holder 23 is installed on the slider 22 through bolts, and a tool 24 is rotatably provided on the tool holder 23. A sliding opening is left at the position of the slider 22 corresponding to the knife control arm 18, and a knife control column 25 is provided in the sliding opening. The knife control column 25 cooperates with the knife control long hole 19. When cutting is realized, the rotating device 17 drives the pulley 7 to rotate, and the pulley 7 further drives the guide sleeve 8 to rotate around the feed pipe 4 through the guide rod 11, and the guide sleeve 8 further drives the knife control arm 18 to rotate. The entire knife control disc 20 and the cutter 24 are rotated to realize rotation, and while the cutter 24 is rotating, the two lead screws 14 are driven by the driving device 16 to jointly drive the drive ring 10 to move in a uniform linear motion, and the drive ring 10 further moves along the feed pipe 4 with the help of the second bearing 9 to act on the guide sleeve 8 and the knife control arm 18, and finally, as the knife control arm 18 gradually passes through the knife control disc 20 through the movable hole, a thrust is applied to the knife control column 25 through the knife control long hole 19, and at this time, the slider 22 drives the cutter 24 to uniformly advance toward the center of the feed pipe 5 to realize circular cutting under the action of the thrust, thereby realizing the uniform advance and retreat of the cutter 24 by replacing the cylinder with the driving device 16 and the lead screw 14, reducing the speed and impulse during the feed, avoiding the damage of the cutter 24 and ensuring the accurate cutting of the thin-walled rubber hose;

[0036] It should be noted that, in order to avoid interference between the cutter 24 and the feed tube 5 during cutting, a cutter entry 26 is provided at a position of the feed tube 5 corresponding to the cutter 24. During cutting, the cutter 24 enters the feed tube 5 from the cutter entry 26 and abuts against the tube wall to achieve cutting.

[0037] It should be noted that, in order to prevent the slider 22 from falling off in the slide slot 21, limit plates 28 are fixed on both sides of the slide slot 21;

[0038] It should be noted that the driving device 16 and the rotating device 17 in the present utility model are both servo motors;

[0039] It should be noted that, in order to ensure the stability of the rubber tube during cutting and the neatness of the cut section, three knife inlets 26 are provided in a circumferential array on the feed pipe 5, each of which is equipped with a knife 24. The three knives can provide support for the rubber tube when cutting under the pressure of the knife control arm 18, thereby preventing a single knife from squeezing the rubber tube and causing the cut section to shift.

[0040] At the same time, in order to accurately control the feed amount, a mounting frame is fixed between the two vertical walls 2. The mounting frame is located on the moving path of the driving arm 13 and two proximity switches 27 are provided in sequence. The proximity switch 27 is located below the driving arm 13. When the driving arm 13 reaches the proximity switch 27 at one end of the tool control disc 20 during feed, the feed is stopped. When the driving arm 13 reaches the proximity switch 27 at one end of the pulley 7 during retracting, the retracting is stopped.

[0041] When in use, pass the rubber hose through the feed pipe 5 and the feed pipe 4. When the set length is reached, start the rotating device 17 to drive the pulley 7 to rotate. The pulley 7 further drives the guide sleeve 8 and the knife control arm 18 connected to the guide sleeve 8 to rotate through the guide rod 11. Since the knife control long hole 19 on the knife control arm 18 is connected and cooperated with the knife control column 25 of the slider 22 set on the knife control disc 20, the entire knife control disc 20 and the tool 24 are further driven to rotate through the knife control arm 18. Then the driving device 16 is used to drive the screw 14 to rotate. The screw 14 further drives the entire drive ring 10 and the guide sleeve 8 to slide forward along the guide rod 11 through the driving arm 13. During the sliding process, the knife control long hole 19 gradually applies thrust to the knife control column 25, and finally the slider 22 slides along the slide groove 21 to realize the knife feed ring cutting.

[0042] The above description is only a preferred specific implementation method of the present utility model, and does not limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A hose cutting device, comprising a base (1), wherein two vertical walls (2) are arranged in parallel on the base (1), and the two vertical walls (2) are concentrically provided with material feeding holes (3), one of the vertical walls (2) is provided with a material feeding pipe (4) at the position of the material feeding hole (3), and the other vertical wall (2) is provided with a material feeding pipe (5) rotatably at the position of the material feeding hole (3), the material feeding pipe (4) is sleeved with a first bearing (6), a pulley (7) is provided on the outer circle of the first bearing (6), and a A rotating device (17) is provided, the feeding tube (4) is movably sleeved with a guide sleeve (8) on one side of the pulley (7), a second bearing (9) is sleeved on the guide sleeve (8), a driving ring (10) is sleeved on the outer circle of the second bearing (9), at least one guide rod (11) is provided on the side of the pulley (7) close to the guide sleeve (8), a guide hole (12) is opened in the guide sleeve (8) at a position corresponding to the guide rod (11), and the guide rod (11) cooperates with the guide hole (12), characterized in that: The two sides of the driving ring (10) are symmetrically connected with driving arms (13), the driving arms (13) are equipped with a lead screw (14), the lead screw (14) is rotatably connected to the vertical wall (2), the lead screw (14) is equipped with a linkage wheel (15), and the linkage wheel (15) is equipped with a driving device (16); The guide sleeve (8) is provided with a knife control arm (18), and the knife control arm (18) is provided with a knife control long hole (19); The feed pipe (5) is provided with a knife control disc (20), and a slide groove (21) is provided on the knife control disc (20) corresponding to the position of the knife control arm (18), and a slider (22) is provided in the slide groove (21). A tool (24) is provided on the slider (22) along the central direction of the feed pipe (5), and a slide opening is provided on the slider (22) corresponding to the position of the knife control arm (18), and a knife control column (25) is provided in the slide opening. The knife control column (25) cooperates with the knife control long hole (19), and the slider (22) is extended and retracted along the slide groove (21) under the action of the knife control arm (18), and the feed pipe (5) rotates synchronously under the linkage of the knife control arm (18).

2. A hose cutting device according to claim 1, characterized in that: The driving device (16) drives the two lead screws (14) to rotate synchronously.

3. A hose cutting device according to claim 1, characterized in that: A limiting plate (28) is respectively provided on both sides of the slide groove (21).

4. A hose cutting device according to claim 1, characterized in that: The knife control disc (20) is provided with a movable opening at a position corresponding to the knife control arm (18), and the knife control arm (18) is matched with the knife control column (25) through the movable opening.

5. A hose cutting device according to claim 1, characterized in that: The feed pipe (5) is provided with a knife entry opening (26) at a position corresponding to the knife (24).

6. A hose cutting device according to claim 1, characterized in that: A mounting frame is provided between the two vertical walls (2), and a travel control device is provided on the mounting frame.

7. A hose cutting device according to claim 6, characterized in that: The travel control device comprises two proximity switches (27), and the two proximity switches (27) are located on the moving path of the driving arm (13).

8. A hose cutting device according to claim 7, characterized in that: The distance between the two proximity switches (27) is no greater than the length of the knife control slot (19).

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