Winding and positioning device for heat-shrinkable flat tube

Abstract

The utility model belongs to the technical field of heat shrink tube production, and particularly relates to a heat shrink flat tube winding and positioning device which comprises a body, two extrusion rollers fixedly connected to the surface of the body, a heat shrink tube arranged between the pair of extrusion rollers and two supports, a fixing shaft rotatably connected between the pair of supports, the surface of the fixing shaft is rotationally connected with a connecting plate, and the surface of the connecting plate is fixedly connected with an elastic piece. The elastic piece resets to drive the connecting plate to rotate through the fixing shaft, so that the heat shrink tube is tensioned, the situation that the heat shrink tube swings randomly is avoided, the winding efficiency is improved, meanwhile, through the design of the two limiting rings, the heat shrink tube can be kept in the middle of the rotating shaft all the time, the situation that the heat shrink tube transversely moves left and right and swings is avoided, the flatness during winding is guaranteed, and the service life of the heat shrink tube is prolonged. And meanwhile, the situation that the heat shrink tube is damaged due to the fact that the two sides of the heat shrink tube are extremely prone to friction with the packaging paper disc during rolling packaging is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrinkable tube production, in particular to a winding and positioning device for heat shrinkable flat tubes. Background Technique

[0002] A heat shrinkable tube is a special polyolefin-based heat shrinkable sleeve, which is widely used in the insulation protection of various wire harnesses, solder joints, inductors, and the rust prevention and corrosion prevention of metal pipes and rods. It has the functions of high-temperature shrinkage, soft flame retardancy, and insulation and corrosion prevention.

[0003] During production, after the heat shrinkable tube is processed, it needs to be wound. However, the heat shrinkable flat tube is prone to swing during winding. If not controlled, both sides are extremely likely to rub against the packaging paper tray during winding and packaging, resulting in damage to the heat shrinkable tube. Therefore, a winding and positioning device for heat shrinkable flat tubes is proposed for the above problems. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art, after the heat shrinkable tube is processed, it needs to be wound. However, the heat shrinkable flat tube is prone to swing during winding. If not controlled, both sides are extremely likely to rub against the packaging paper tray during winding and packaging, resulting in damage to the heat shrinkable tube. Therefore, a winding and positioning device for heat shrinkable flat tubes is proposed for the above problems. The utility model proposes a winding and positioning device for heat shrinkable flat tubes.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a winding and positioning device for heat shrinkable flat tubes of the utility model includes a body, and two extrusion rollers are fixedly connected to the surface of the body. A heat shrinkable tube is arranged between a pair of the extrusion rollers;

[0006] The device further includes supports, there are two supports, a fixed shaft is rotatably connected between a pair of the supports, and a connecting plate is rotatably connected to the surface of the fixed shaft;

[0007] A elastic sheet is fixedly connected to the surface of the connecting plate, and one end of the elastic sheet far away from the connecting plate is fixedly connected to the surface of the body;

[0008] A movable shaft is fixedly connected to the surface of the connecting plate, a rotating shaft is rotatably connected to the surface of the movable shaft, a limiting ring is arranged on the surface of the rotating shaft, and there are two limiting rings, and a pair of the limiting rings are symmetrically distributed with respect to the central axis of the connecting plate;

[0009] First, set the heat shrinkable tube between the two extrusion rollers, and then pass the heat shrinkable tube through the surface of the rotating shaft. At this time, by rotating the extrusion rollers, the heat shrinkable tube is flattened and then wound. When the heat shrinkable tube moves, it will drive the rotating shaft to rotate on the surface of the movable shaft. When the heat shrinkable tube is relatively loose, the elastic piece resets, driving the connecting plate to rotate through the fixed shaft, so that the heat shrinkable tube is tightened, avoiding the situation of random swinging of the heat shrinkable tube, improving the winding efficiency. At the same time, through the design of the two limit rings, the heat shrinkable tube can be always kept in the middle position of the rotating shaft, without the situation of left-right lateral movement and swinging, ensuring the smoothness during winding. At the same time, it avoids the situation that when winding and packaging, the two sides are easily rubbed against the packaging paper disc, resulting in damage to the heat shrinkable tube 5.

[0010] Preferably, the limit ring is slidably connected to the surface of the rotating shaft. A guide groove is formed on the surface of the connecting plate. An inner ring is rotatably connected to the surface of the limit ring. A sliding piece is fixedly connected to the surface of the inner ring. The sliding piece is slidably connected to the connecting plate through a spring. A connecting rope is fixedly connected to one side of the sliding piece. The connecting rope is slidably connected in the guide groove and is fixedly connected to a positioning mechanism at the end. A plurality of beads are rotatably connected to the surface of the inner ring. A rolling groove is formed on the surface of the limit ring corresponding to the beads. A notch is formed on the surface of the rotating shaft. A slider corresponding to the notch is fixedly connected to the surface of the limit ring;

[0011] By pulling the connecting ropes at both ends of the limit ring, the connecting ropes drive the sliding pieces and compress the spring to generate elastic force. When the sliding pieces move, they will drive the two limit rings to move away from each other, increasing the distance between the two limit rings. Then, position through the positioning mechanism to avoid sliding. Through the cooperation of the notch on the surface of the rotating shaft and the slider, the rotating shaft can drive the limit ring to rotate synchronously, avoiding continuous friction between the two sides of the heat shrinkable tube and the limit ring, causing additional wear. At the same time, through multiple notches, the friction between the heat shrinkable tube and the rotating shaft can be increased, further reducing the possibility of the heat shrinkable tube sliding on the surface of the rotating shaft. The beads on the surface of the inner ring can change the sliding friction to rolling friction, reducing the friction force and the resistance when the limit ring rotates.

[0012] Preferably, the positioning mechanism includes a protective shell. A reel is arranged in the protective shell. The end of the connecting rope far away from the sliding piece is fixedly connected to the reel. Both ends of the reel penetrate through the protective shell and are rotatably connected. And the end part of the part of the reel located outside the protective shell is fixedly connected with a snap ring. And a plurality of positioning blocks are fixedly connected to the surface of the snap ring. A vertical rod is fixedly connected to the surface of the connecting plate. The vertical rod has elasticity. And a limit block is arranged on the surface of the vertical rod. An empty groove is formed on the surface of the vertical rod. A locking rod is arranged in the empty groove. A through groove is formed on the side wall of the empty groove. The limit block is rotatably connected in the through groove;

[0013] The connecting rope is wound by rotating the reel, and at the same time, the snap ring is driven to rotate, so that the positioning block on the surface of the snap ring cooperates with the limiting block to fix the position of the limiting ring. When it is necessary to reduce the distance between the two limiting rings, the locking rod is pulled out of the empty slot, and at the same time, the locking rod is disengaged from the limiting block to release the positioning of the limiting block. At this time, under the elastic force of the spring on the surface of the sliding piece, the snap ring is reversed, so that the two limiting rings move away from each other, and thus the heat shrinkable tube with different diameters can be guided and supported. When it is necessary to fix the reel, the locking rod is directly moved downward, so that the locking rod presses the limiting block, and the limiting block re-limits the snap ring.

[0014] Preferably, a sliding plate is fixedly connected to the side wall of the empty slot, a sliding groove is formed on the surface of the locking rod, and the sliding plate is slidably connected in the sliding groove through a spring. A pull ring is fixedly connected to the end of the locking rod. The sliding plate can limit the locking rod to prevent the staff from pulling the locking rod out of the empty slot. At the same time, the pull ring can make it more convenient for the staff to pull the locking rod.

[0015] A support rod is fixedly connected to the surface of the support, and an auxiliary shaft is rotatably connected to the surface of the support rod; during operation, when the connecting plate is in a relatively low position, the heat shrinkable tube may be attached to the surface of the connecting plate. Through the provided auxiliary rod, the heat shrinkable tube can be further supported to avoid this situation.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. Through the reset of the elastic piece, the connecting plate is driven to rotate through the fixed shaft, so that the heat shrinkable tube is tightened, avoiding the situation that the heat shrinkable tube swings randomly, improving the winding efficiency. At the same time, through the design of the two limiting rings, the heat shrinkable tube can always be kept in the middle position of the rotating shaft, without the situation of horizontal movement and swinging left and right, ensuring the flatness during winding, and at the same time avoiding the situation that the two sides are easily rubbed against the packaging paper disc during winding and packaging, resulting in damage to the heat shrinkable tube.

[0018] 2. Through the design of the auxiliary rod, when the connecting plate is in a relatively low position, the auxiliary rod can further support the heat shrinkable tube to avoid the situation that the heat shrinkable tube is attached to the surface of the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of the body in Embodiment 1;

[0021] Figure 2 Schematic diagram of the support structure of the first embodiment;

[0022] Figure 3 For the first embodiment Figure 2 Schematic diagram of the structure at position A in

[0023] Figure 4 For the first embodiment Figure 2 Schematic diagram of the structure at position B in

[0024] Figure 5 Schematic diagram of the upright rod structure of the first embodiment;

[0025] Figure 6 For the first embodiment Figure 5 Schematic diagram of the structure at position C in

[0026] Figure 7 Schematic diagram of the structure of the auxiliary rod of the second embodiment.

[0027] In the figure: 1, main body; 2, support; 3, fixed shaft; 4, elastic sheet; 5, heat shrinkable tube; 7, rotating shaft; 8, movable shaft; 9, connecting plate; 10, guiding groove; 11, connecting rope; 12, inner ring; 13, limiting ring; 14, clamping bead; 15, notch; 16, sliding piece; 17, reel; 18, snap ring; 19, upright rod; 20, protective shell; 21, pull ring; 22, sliding plate; 23, sliding groove; 24, locking rod; 25, positioning block; 26, limiting block; 27, through groove; 28, auxiliary shaft; 29, support rod; 30, empty groove. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] Please refer to Figures 1-6 As shown, a heat shrinkable flat tube winding and positioning device includes a main body 1, and two extrusion rollers are fixedly connected to the surface of the main body 1, and a heat shrinkable tube 5 is arranged between a pair of the extrusion rollers;

[0031] It further includes a support 2, there are two supports 2, a fixed shaft 3 is rotatably connected between a pair of the supports 2, and a connecting plate 9 is rotatably connected to the surface of the fixed shaft 3;

[0032] A shrapnel 4 is fixedly connected to the surface of the connecting plate 9, and one end of the shrapnel 4 away from the connecting plate 9 is fixedly connected to the surface of the body 1;

[0033] A movable shaft 8 is fixedly connected to the surface of the connecting plate 9. A rotating shaft 7 is rotatably connected to the surface of the movable shaft 8. A limiting ring 13 is arranged on the surface of the rotating shaft 7. There are two limiting rings 13, and a pair of the limiting rings 13 are symmetrically distributed about the central axis of the connecting plate 9;

[0034] During operation, first place the heat shrinkable tube 5 between the two pressing rollers, and then pass the heat shrinkable tube 5 through the surface of the rotating shaft 7. At this time, by rotating the pressing rollers, the heat shrinkable tube 5 is flattened and then wound. When the heat shrinkable tube 5 moves, it will drive the rotating shaft 7 to rotate on the surface of the movable shaft 8. When the heat shrinkable tube 5 is relatively loose, the shrapnel 4 resets, driving the connecting plate 9 to rotate through the fixed shaft 3, so that the heat shrinkable tube 5 is tightened, avoiding the situation that the heat shrinkable tube 5 swings randomly, improving the winding efficiency. At the same time, through the design of the two limiting rings 13, the heat shrinkable tube 5 can be always kept in the middle position of the rotating shaft 7, without the situation of left - right lateral movement and swinging, ensuring the smoothness during winding, and at the same time avoiding the situation that the two sides are easily rubbed against the packaging paper tray during winding and packaging, resulting in damage to the heat shrinkable tube 5.

[0035] The limiting ring 13 is slidably connected to the surface of the rotating shaft 7. A guiding groove 10 is opened on the surface of the connecting plate 9. An inner ring 12 is rotatably connected to the surface of the limiting ring 13. A sliding piece 16 is fixedly connected to the surface of the inner ring 12. The sliding piece 16 is slidably connected to the connecting plate 9 through a spring. A connecting rope 11 is fixedly connected to one side of the sliding piece 16. The connecting rope 11 is slidably connected in the guiding groove 10 and is fixedly connected to a positioning mechanism at the end. A number of beads 14 are rotatably connected to the surface of the inner ring 12. A rolling groove is opened on the surface of the limiting ring 13 at a position corresponding to the beads 14. A notch 15 is opened on the surface of the rotating shaft 7. A slider corresponding to the notch 15 is fixedly connected to the surface of the limiting ring 13;

[0036] During operation, by pulling the connecting ropes 11 at both ends of the limiting ring 13, the connecting ropes 11 drive the sliding piece 16 and compress the spring to generate elastic force. When the sliding piece 16 moves, it will drive the two limiting rings 13 to move away from each other, increasing the distance between the two limiting rings 13. Then, position through the positioning mechanism to avoid the situation of sliding. Through the cooperation of the notch 15 on the surface of the rotating shaft 7 and the slider, the rotating shaft 7 can drive the limiting ring 13 to rotate synchronously, avoiding continuous friction between the two sides of the heat shrinkable tube 5 and the limiting ring 13, causing additional wear. At the same time, through multiple notches 15, the friction force between the heat shrinkable tube 5 and the rotating shaft 7 can be increased, further reducing the possibility of the heat shrinkable tube 5 sliding on the surface of the rotating shaft 7. Through the beads 14 on the surface of the inner ring 12, the sliding friction can be changed to rolling friction, reducing the friction force and at the same time reducing the resistance when the limiting ring 13 rotates.

[0037] The positioning mechanism includes a protective shell 20, a reel 17 is arranged inside the protective shell 20, one end of the connecting rope 11 far away from the sliding piece 16 is fixedly connected to the reel 17, both ends of the reel 17 penetrate through the protective shell 20 and are rotatably connected, and a clamping ring 18 is fixedly connected to the end part of the part of the reel 17 located outside the protective shell 20, and a plurality of positioning blocks 25 are fixedly connected to the surface of the clamping ring 18. A vertical rod 19 is fixedly connected to the surface of the connecting plate 9. The vertical rod 19 has elasticity, and a limiting block 26 is arranged on the surface of the vertical rod 19. An empty groove 30 is formed on the surface of the vertical rod 19, a locking rod 24 is arranged inside the empty groove 30, a through groove 27 is formed on the side wall of the empty groove 30, and the limiting block 26 is rotatably connected inside the through groove 27;

[0038] During work, the connecting rope 11 is wound by rotating the reel 17. At the same time, the clamping ring 18 will be driven to rotate, so that the positioning blocks 25 on the surface of the clamping ring 18 cooperate with the limiting blocks 26 to fix the position of the limiting ring 13. When it is necessary to reduce the distance between the two limiting rings 13, the locking rod 24 is pulled out of the empty groove 30, and at the same time, the locking rod 24 is separated from the limiting block 26 to release the positioning of the limiting block 26. At this time, driven by the elastic force of the spring on the surface of the sliding piece 16, the clamping ring 18 rotates in reverse, so that the two limiting rings 13 move in the direction away from each other, and thus the heat shrinkable tube 5 with different diameters can be guided and supported. When it is necessary to fix the reel 17, the locking rod 24 is directly moved downward, so that the locking rod 24 presses the limiting block 26, and the limiting block 26 re-limits the clamping ring 18.

[0039] A sliding plate 22 is fixedly connected to the side wall of the empty groove 30. A sliding groove 23 is formed on the surface of the locking rod 24. The sliding plate 22 is slidably connected inside the sliding groove 23 through a spring. A pulling ring 21 is fixedly connected to the end of the locking rod 24. During work, the locking rod 24 can be limited by the sliding plate 22 to prevent the staff from pulling the locking rod 24 out of the empty groove 30. At the same time, the pulling ring 21 can make it more convenient for the staff to pull the locking rod 24.

[0040] Embodiment 2

[0041] Please refer to Figure 7 As shown, compared with Embodiment 1, as another implementation manner of the present invention, a support rod 29 is fixedly connected to the surface of the support 2, and an auxiliary shaft 28 is rotatably connected to the surface of the support rod 29. During work, when the connecting plate 9 is in a relatively low position, the heat shrinkable tube 5 may be attached to the surface of the connecting plate 9. Through the arranged auxiliary rod, the heat shrinkable tube 5 can be further supported to avoid this situation.

[0042] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A heat shrinkable flat tube rolling and positioning device, comprising a body (1), wherein two squeezing rollers are fixedly connected to the surface of the body (1), and a heat shrinkable tube (5) is arranged between the pair of squeezing rollers; Features: It also includes a support (2), wherein two supports (2) are provided, a pair of the supports (2) are rotatably connected to a fixed shaft (3), and a connection plate (9) is rotatably connected to the surface of the fixed shaft (3); The surface of the connecting plate (9) is fixedly connected to a spring sheet (4), and one end of the spring sheet (4) away from the connecting plate (9) is fixedly connected to the surface of the body (1); A movable shaft (8) is fixedly connected to the surface of the connecting plate (9), a rotating shaft (7) is rotatably connected to the surface of the movable shaft (8), a limiting ring (13) is provided on the surface of the rotating shaft (7), two limiting rings (13) are provided, and a pair of limiting rings (13) are symmetrically distributed around the central axis of the connecting plate (9).

2. A heat shrinkable flat tube rolling and positioning device according to claim 1, characterized in that: The limiting ring (13) is slidably connected to the surface of the rotating shaft (7), the surface of the connecting plate (9) is provided with a guide groove (10), the surface of the limiting ring (13) is rotatably connected to the inner ring (12), the surface of the inner ring (12) is fixedly connected to a slide plate (16), the slide plate (16) and the connecting plate (9) are slidably connected via a spring, one side of the slide plate (16) is fixedly connected to a connecting rope (11), the connecting rope (11) is slidably connected in the guide groove (10), and a positioning mechanism is fixedly connected to the end thereof.

3. A heat shrinkable flat tube rolling and positioning device according to claim 2, characterized in that: The positioning mechanism comprises a protective shell (20), a reel (17) is arranged inside the protective shell (20), one end of the connecting rope (11) away from the slide (16) is fixedly connected to the reel (17), both ends of the reel (17) pass through the protective shell (20) and are rotatably connected, and a clamping ring (18) is fixedly connected to the end of the reel (17) located outside the protective shell (20), and a plurality of positioning blocks (25) are fixedly connected to the surface of the clamping ring (18), and a vertical rod (19) is fixedly connected to the surface of the connecting plate (9), the vertical rod (19) is elastic, and a limiting block (26) is arranged on the surface of the vertical rod (19).

4. A heat shrinkable flat tube rolling and positioning device according to claim 3, characterized in that: A notch (15) is provided on the surface of the rotating shaft (7), and a sliding block corresponding to the notch (15) is fixedly connected to the surface of the limiting ring (13).

5. A heat shrinkable flat tube rolling and positioning device according to claim 4, characterized in that: A plurality of locking beads (14) are rotatably connected to the surface of the inner ring (12), and rolling grooves are provided on the surface of the limiting ring (13) at positions relative to the locking beads (14).

6. A heat shrinkable flat tube rolling and positioning device according to claim 5, characterized in that: A hollow groove (30) is provided on the surface of the vertical rod (19), a locking rod (24) is arranged in the hollow groove (30), a through groove (27) is provided on the side wall of the hollow groove (30), and the limit block (26) is rotatably connected in the through groove (27).

7. A heat shrinkable flat tube rolling and positioning device according to claim 6, characterized in that: A slide plate (22) is fixedly connected to the side wall of the hollow groove (30), a slide groove (23) is provided on the surface of the locking rod (24), the slide plate (22) is slidably connected in the slide groove (23) via a spring, and a pull ring (21) is fixedly connected to the end of the locking rod (24).

8. The heat shrinkable flat tube rolling and positioning device according to claim 7, characterized in that: A support rod (29) is fixedly connected to the surface of the support seat (2), and an auxiliary shaft (28) is rotatably connected to the surface of the support rod (29).

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