Centrifugal rotary cutting mechanism for heat shrink tube

Abstract

The utility model belongs to the technical field of heat shrink tube cutting, and particularly relates to a heat shrink tube centrifugal rotary cutting mechanism which comprises a top plate, a fixing seat and a supporting mechanism, the fixing seat is installed on the surface of the top plate, an arc-shaped mold is movably installed on the surface of the fixing seat of the top plate, and a heat shrink tube is clamped in the arc-shaped mold. The supporting mechanism is fixedly installed on the surface of the fixing base and comprises an electric telescopic rod, the electric telescopic rod is fixedly connected to the surface of the fixing base, the surface of the connecting shaft is sleeved with a supporting ring, an expansion mechanism is arranged on the surface of the supporting ring, and the supporting ring is fed into a heat shrink tube through the electric telescopic rod for supporting. The situation that burrs appear during cutting due to the fact that the heat shrink tube deforms due to the fact that the heat shrink tube urges the pressure of the knife edge during cutting is avoided, meanwhile, the heat shrink tube is better attached to the clamping plate through the expansion mechanism, and the supporting effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrinkable tube cutting, in particular to a centrifugal rotary cutting mechanism for heat shrinkable tubes. Background Art

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

[0003] A patent of Chinese Patent Application CN102962859B discloses a centrifugal rotary cutting mechanism for heat shrinkable tubes. The key points of its technical solution are that the first synchronous pulley is installed on the rotating shaft of the servo motor; the second synchronous pulley is installed on several bearings; the synchronous belt is installed on the first synchronous pulley and the second synchronous pulley; the cutting die base is fixedly installed on the second synchronous pulley, and a through hole is opened in the center of the cutting die base; two slide rails are respectively fixedly installed on both sides of the through hole in the cutting die base; several sliders are slidably installed on the two slide rails; an elliptical through hole is opened in the center of the centrifugal follower block; two springs are respectively installed on both sides of the centrifugal follower block, the lower end of each spring is installed at the lower end of the centrifugal follower block, and the upper end is installed on the cutting die base; the cutting knife is fixedly installed at the upper end of the through hole at the top of the centrifugal follower block. The cutting mechanism of the present invention cuts by centrifugal method, effectively avoiding defects such as the cut opening being flattened, the cutting bevel, and the cut opening being uneven, and greatly improving the cutting production efficiency.

[0004] The existing heat shrinkable tube rotary cutting mechanisms and the above technologies cut the heat shrinkable tubes by rotary cutting, which can avoid the cut opening being flattened. However, when cutting, the clamping method used is mostly to clamp the heat shrinkable tube with two semi-circular clamping plates. Since the heat shrinkable tube lacks a supporting device, when cutting, due to the pressure of the cutting edge, the heat shrinkable tube will deform, and there is still a possibility of burrs during cutting. Therefore, a centrifugal rotary cutting mechanism for heat shrinkable tubes is proposed for the above problems. Summary of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology, the heat shrinkable tube lacks a supporting device, so when cutting, due to the pressure of the cutting edge, the heat shrinkable tube will deform, and there is still a possibility of burrs during cutting. The utility model proposes a centrifugal rotary cutting mechanism for heat shrinkable tubes.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a centrifugal rotary cutting mechanism for heat shrinkable tubes of the utility model includes a top plate, a fixed seat and a supporting mechanism. The fixed seat is installed on the surface of the top plate. An arc-shaped mold is movably installed on the surface of the fixed seat of the top plate. The heat shrinkable tube is clamped in the arc-shaped mold. The supporting mechanism is fixedly installed on the surface of the fixed seat;

[0007] The support mechanism includes an electric telescopic rod, and the electric telescopic rod is fixedly connected to the surface of the fixed seat;

[0008] A connecting plate, the connecting plate is fixedly connected to the surface of the telescopic shaft of the electric telescopic rod, a support rod is arranged on the surface of the connecting plate, a connecting shaft is fixedly connected to the surface of the support rod, a support ring is sleeved on the surface of the connecting shaft, and an expansion mechanism is arranged on the surface of the support ring;

[0009] Clamp the heat shrinkable tube on the surface of the arc-shaped clamping plate on the surface of the fixed seat, and then start the rotary cutting blade to cut the heat shrinkable tube. While clamping the heat shrinkable tube, the electric telescopic rod will start, and at the same time drive the connecting shaft to send the support ring into the heat shrinkable tube for support, so as to avoid deformation of the heat shrinkable tube due to the pressure of the cutting edge during cutting, resulting in burrs during cutting. At the same time, the heat shrinkable tube is made to fit the clamping plate more closely through the expansion mechanism, further improving the support effect.

[0010] Preferably, the expansion mechanism includes a base, a gas storage block is fixedly connected to the surface of the base, an elastic block is fixedly connected to the surface of the connecting shaft, the elastic block is made of hollow material, a guide air pipe is connected through the surface of the gas storage block, and the other end of the guide air pipe penetrates through the support rod and the connecting shaft and communicates with the elastic block. A pressing plate is fixedly connected to the surface of the connecting plate, and a protective cover is fixedly connected to the surface of the base. The gas storage block is arranged in the protective cover;

[0011] When the connecting plate drives the connecting shaft to move, it will drive the pressing plate to squeeze the gas storage block, so that the gas in the gas storage block is filled into the elastic block through the guide air pipe and the support rod, causing the hollow elastic block to inflate and expand, thereby driving the heat shrinkable tube to fit the clamping plate more closely, further ensuring the flatness of the cut during cutting.

[0012] Preferably, a sliding groove is formed on the surface of the support ring, a sliding shaft is fixedly connected in the sliding groove, a limiting rod is slidably connected to the surface of the sliding shaft through a spring, the end of the limiting rod is fixedly connected with a support plate, there are two support rings, and a pair of support rings are symmetrically distributed with the center of the elastic block as the center;

[0013] When the elastic block expands, it will drive the support plate to slide. At the same time, the support plate drives the limiting rod to slide in the sliding groove, and at the same time, it will squeeze the spring to generate elastic force. When the electric telescopic rod drives the connecting shaft to disengage from the heat shrinkable tube, the elastic block returns to its original state, and at the same time, the spring drives the support plate to reset. Through the cooperation of the support plate and the support ring, the shape of the hollow elastic block can be restricted, avoiding the elastic block moving towards the direction of the blade and being cut by the blade when expanding.

[0014] Preferably, the support rod is divided into rod one and rod two. Rod one is fixedly connected to the connecting plate. A regulating rod is fixedly connected to the surface of rod two. A cavity is formed inside the regulating rod. A reel is rotatably connected inside the cavity. A plug shaft is slidably connected to the surface of the regulating rod through a spring. A number of jacks are formed on the surface of rod one at positions corresponding to the plug shaft. The reel is tubular. A rotating rod is slidably connected inside the reel through a spring. The rotating rod passes through the regulating rod and rod one and is movably connected, and a knob is fixedly connected to the end. A fixing rod is fixedly connected to the surface of the rotating rod. Rod grooves are formed on the inner wall of the cavity. A connecting rope is fixedly connected to the surface of the plug shaft. The other end of the connecting rope passes through the side wall of the cavity and is fixedly connected to the reel. There are three rod grooves, and the angle between each two rod grooves is 45°. The end of the plug shaft is an arc surface.

[0015] When the arc-shaped clamping plate on the surface of the fixed seat is replaced with a larger diameter, by pressing the knob, the fixing rod is disengaged from the rod groove. At this time, rotate the knob, so that the knob drives the rotating rod, and the reel is driven to rotate by the limiting block on the surface of the rotating rod, so that the reel winds up the connecting rope. At the same time, the plug shaft will be driven to disengage from the jack and squeeze the spring to generate elastic force. When the knob rotates 45°, the fixing rod is stuck into one of the three middle rod grooves. At this time, the arc surface on the surface of the plug shaft fits with the slot. At this time, when the regulating rod is slid up and down, the plug shaft is driven by the spring to squeeze the position of the slot opening, so that the regulating rod has a damping effect, which is convenient for the staff to adjust. Continue to rotate the knob so that the fixing rod is stuck into another rod groove. At this time, the plug shaft completely disengages from the slot, so that the regulating rod can be directly adjusted up and down quickly.

[0016] Preferably, an anti-slip pad is fixedly connected to the surface of the knob, and anti-slip lines are formed on the surface of the anti-slip pad. The anti-slip pad on the surface of the knob and the anti-slip lines formed thereon can improve the friction between the fingers of the staff and the knob, thereby avoiding the situation of slipping.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. The present utility model uses an electric telescopic rod to send the support ring into the heat shrinkable tube for support, so as to avoid the deformation of the heat shrinkable tube under the pressure of the cutting edge during cutting, resulting in burrs during cutting. At the same time, through the expansion mechanism, the heat shrinkable tube fits more closely to the clamping plate, further improving the support effect.

[0019] 2. The present utility model drives the reel to rotate by the limiting block on the surface of the rotating rod, so that the reel winds up the connecting rope. At the same time, the plug shaft will be driven to disengage from the jack, so that the regulating rod can be directly adjusted up and down quickly, so as to facilitate the staff to adjust the support ring to always be at the center of the heat shrinkable tube. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the electric telescopic rod structure of Embodiment 1;

[0022] Figure 2 Schematic diagram of the elastic block structure of Embodiment 1;

[0023] Figure 3 For Embodiment 1 Figure 2 Schematic diagram of the structure at position A;

[0024] Figure 4 For Embodiment 1 Figure 2 Schematic diagram of the structure at position B;

[0025] Figure 5 Schematic diagram of the rod groove structure of Embodiment 1;

[0026] Figure 6 Schematic diagram of the anti-slip pad structure of Embodiment 2.

[0027] In the figure: 1, top plate; 2, fixed seat; 3, heat shrinkable tube; 4, air guide tube; 5, support ring; 6, base; 7, electric telescopic rod; 8, protective cover; 9, gas storage block; 10, connecting plate; 11, support rod; 12, connecting shaft; 13, elastic block; 14, rod two; 15, rod one; 16, knob; 17, chute; 18, insertion shaft; 20, connecting rope; 21, cavity; 23, fixed rod; 24, rod groove; 25, adjusting rod; 26, reel; 27, support plate; 28, sliding shaft; 29, limiting rod; 31, rotating rod; 32, anti-slip pad. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Embodiment 1

[0030] Please refer to Figures 1-5As shown in the figure, a centrifugal cutting mechanism for heat shrinkable tubes includes a top plate 1, a fixed seat 2 and a support mechanism. The fixed seat 2 is installed on the surface of the top plate 1. An arc-shaped mold is movably installed on the surface of the fixed seat 2 of the top plate 1. A heat shrinkable tube 3 is clamped inside the arc-shaped mold. The support mechanism is fixedly installed on the surface of the fixed seat 2;

[0031] The support mechanism includes an electric telescopic rod 7, and the electric telescopic rod 7 is fixedly connected to the surface of the fixed seat 2;

[0032] A connecting plate 10, the connecting plate 10 is fixedly connected to the telescopic shaft surface of the electric telescopic rod 7. A support rod 11 is arranged on the surface of the connecting plate 10. A connecting shaft 12 is fixedly connected to the surface of the support rod 11. A support ring 5 is sleeved on the surface of the connecting shaft 12. An expansion mechanism is arranged on the surface of the support ring 5;

[0033] During operation, the heat shrinkable tube 3 is clamped on the arc-shaped clamping plate on the surface of the fixed seat 2, and then the rotary cutting blade is started to cut the heat shrinkable tube 3. While clamping the heat shrinkable tube 3, the electric telescopic rod 7 will be started, and at the same time, the connecting shaft 12 will be driven to send the support ring 5 into the heat shrinkable tube 3 for support, so as to avoid the deformation of the heat shrinkable tube 3 under the pressure of the cutting edge during cutting, resulting in burrs during cutting. At the same time, the heat shrinkable tube 3 is made to fit the clamping plate more closely through the expansion mechanism, further improving the support effect.

[0034] The expansion mechanism includes a base 6. A gas storage block 9 is fixedly connected to the surface of the base 6. An elastic block 13 is fixedly connected to the surface of the connecting shaft 12. The elastic block 13 is made of hollow material. A guide pipe 4 is connected through the surface of the gas storage block 9. The other end of the guide pipe 4 penetrates through the support rod 11 and the connecting shaft 12 and is communicated with the elastic block 13. A pressing plate is fixedly connected to the surface of the connecting plate 10. A protective cover 8 is fixedly connected to the surface of the base 6. The gas storage block 9 is arranged inside the protective cover 8;

[0035] During operation, when the connecting plate 10 drives the connecting shaft 12 to move, it will drive the pressing plate to squeeze the gas storage block 9, so that the gas in the gas storage block 9 is filled into the elastic block 13 through the guide pipe 4 and the support rod 11, so that the hollow elastic block 13 is inflated, and then drives the heat shrinkable tube 3 to fit the clamping plate more closely, further ensuring the flatness of the cut during cutting.

[0036] A chute 17 is opened on the surface of the support ring 5. A sliding shaft 28 is fixedly connected inside the chute 17. A limiting rod 29 is slidably connected to the surface of the sliding shaft 28 through a spring. The end of the limiting rod 29 is fixedly connected to a support plate 27. There are two support rings 5, and a pair of support rings 5 are symmetrically distributed with the center of the elastic block 13 as the center;

[0037] During operation, while the elastic block 13 expands, it drives the support plate 27 to slide. At the same time, the support plate 27 drives the limit rod 29 to slide in the chute 17, and simultaneously squeezes the spring to generate elastic force. When the electric telescopic rod 7 drives the connecting shaft 12 to disengage from the heat shrinkable tube 3, the elastic block 13 resumes its original shape. At the same time, the spring drives the support plate 27 to reset. By cooperating with the support ring 5, the support plate 27 can limit the shape of the hollow elastic block 13, preventing the elastic block 13 from moving towards the blade direction when it expands and being cut by the blade.

[0038] The support rod 11 is divided into rod one 15 and rod two 14. The rod one 15 is fixedly connected to the connecting plate 10. The surface of the rod two 14 is fixedly connected with an adjusting rod 25. A cavity 21 is formed in the adjusting rod 25. A reel 26 is rotatably connected in the cavity 21. The surface of the adjusting rod 25 is slidably connected with an inserting shaft 18 through a spring. A plurality of inserting holes are formed in the surface of the rod one 15 at the position corresponding to the inserting shaft 18. The reel 26 is tubular. A rotating rod 31 is slidably connected in the reel 26 through a spring. The rotating rod 31 penetrates through the adjusting rod 25 and the rod one 15 and is movably connected, and the end part is fixedly connected with a knob 16. A fixing rod 23 is fixedly connected to the surface of the rotating rod 31. A rod groove 24 is formed in the inner wall of the cavity 21. A connecting rope 20 is fixedly connected to the surface of the inserting shaft 18. The other end of the connecting rope 20 penetrates through the side wall of the cavity 21 and is fixedly connected with the reel 26. There are three rod grooves 24, and the angle between each two rod grooves 24 is 45°. The end part of the inserting shaft 18 is an arc surface.

[0039] During operation, when the arc-shaped clamping plate on the surface of the fixed seat 2 is replaced with a larger diameter, by pressing the knob 16, the fixing rod 23 is disengaged from the rod groove 24. At this time, rotate the knob 16, so that the knob 16 drives the rotating rod 31. The reel 26 is driven to rotate by the limiting block on the surface of the rotating rod 31, so that the reel 26 winds up the connecting rope 20. At the same time, it drives the inserting shaft 18 to disengage from the inserting hole and squeezes the spring to generate elastic force. When the knob 16 rotates 45°, the fixing rod 23 is clamped into one of the three rod grooves 24 in the middle. At this time, the arc surface on the surface of the inserting shaft 18 fits with the inserting slot. When the adjusting rod 25 is slid up and down at this time, the inserting shaft 18 is driven by the spring to squeeze the position of the inserting slot opening, so that the adjusting rod 25 has a damping effect, which is convenient for the staff to adjust. Continue to rotate the knob 16, so that the fixing rod 23 is clamped into another rod groove 24. At this time, the inserting shaft 18 completely disengages from the inserting slot, so that the adjusting rod 25 can be directly adjusted up and down quickly.

[0040] Embodiment Two

[0041] Please refer to Figure 6As shown, as another implementation manner of the present utility model in contrast to the first comparative example, an anti-slip pad 32 is fixedly connected to the surface of the knob 16, and anti-slip lines are provided on the surface of the anti-slip pad 32; during operation, the anti-slip pad 32 on the surface of the knob 16 cooperates with the provided anti-slip lines to increase the friction between the fingers of the staff and the knob 16, thereby avoiding the occurrence of slipping.

[0042] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means 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 can be combined in a suitable manner in any one or more embodiments or examples.

[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 shrink tube centrifugal peeling mechanism, characterized in that: It comprises a top plate (1), a fixing seat (2) and a supporting mechanism, wherein the fixing seat (2) is mounted on the surface of the top plate (1), an arc-shaped mold is movably mounted on the surface of the fixing seat (2) of the top plate (1), a heat shrink tube (3) is clamped in the arc-shaped mold, and the supporting mechanism is fixedly mounted on the surface of the fixing seat (2); The supporting mechanism comprises an electric telescopic rod (7), and the electric telescopic rod (7) is fixedly connected to the surface of the fixing seat (2); A connecting plate (10) is fixedly connected to the surface of the telescopic shaft of the electric telescopic rod (7); a support rod (11) is arranged on the surface of the connecting plate (10); a connecting shaft (12) is fixedly connected to the surface of the support rod (11); a supporting ring (5) is sleeved on the surface of the connecting shaft (12); and an expansion mechanism is arranged on the surface of the supporting ring (5).

2. A heat shrink tube (3) centrifugal peeling mechanism according to claim 1, characterized in that: The expansion mechanism comprises a base (6), a gas storage block (9) is fixedly connected to the surface of the base (6), an elastic block (13) is fixedly connected to the surface of the connecting shaft (12), the elastic block (13) is made of a hollow material, an air guide tube (4) is connected through the surface of the gas storage block (9), the other end of the air guide tube (4) passes through a support rod (11), the connecting shaft (12) and is connected to the elastic block (13), and a pressure plate is fixedly connected to the surface of the connecting plate (10).

3. A heat shrink tube (3) centrifugal peeling mechanism according to claim 2, characterized in that: The support ring (5) has a sliding groove (17) on its surface, a sliding shaft (28) is fixedly connected inside the sliding groove (17), a limiting rod (29) is slidably connected to the surface of the sliding shaft (28) via a spring, and the end of the limiting rod (29) is fixedly connected to the support plate (27).

4. A heat shrink tube (3) centrifugal peeling mechanism according to claim 3, characterized in that: Two support rings (5) are provided, and a pair of support rings (5) are symmetrically distributed around the center of the elastic block (13).

5. A heat shrink tube (3) centrifugal peeling mechanism according to claim 4, characterized in that: The support rod (11) is divided into a rod 1 (15) and a rod 2 (14). The rod 1 (15) is fixedly connected to the connecting plate (10). An adjusting rod (25) is fixedly connected to the surface of the rod 2 (14). A cavity (21) is provided in the adjusting rod (25). A reel (26) is rotatably connected in the cavity (21). An inserting shaft (18) is slidably connected to the surface of the adjusting rod (25) via a spring. A plurality of inserting holes are provided on the surface of the rod 1 (15) relative to the inserting shaft (18). The reel (26) is rotatably connected to the surface of the adjusting rod (25). ) is tubular, a rotating rod (31) is slidably connected to the reel (26) via a spring, the rotating rod (31) passes through the adjusting rod (25) and the rod one (15) and is movably connected, and a knob (16) is fixedly connected to the end thereof, a fixed rod (23) is fixedly connected to the surface of the rotating rod (31), a rod groove (24) is provided on the inner wall of the cavity (21), a connecting rope (20) is fixedly connected to the surface of the plug shaft (18), and the other end of the connecting rope (20) passes through the side wall of the cavity (21) and is fixedly connected to the reel (26).

6. A heat shrink tube (3) centrifugal peeling mechanism according to claim 5, characterized in that: The rod grooves (24) are provided with three, and the angle between each rod groove (24) is 45 degrees, and the end of the insertion shaft (18) is an arc surface.

7. A heat shrink tube (3) centrifugal peeling mechanism according to claim 6, characterized in that: A protective cover (8) is fixedly connected to the surface of the base (6), and the gas storage block (9) is arranged inside the protective cover (8).

8. A heat shrink tube (3) centrifugal peeling mechanism according to claim 7, characterized in that: The surface of the knob (16) is fixedly connected with an anti-skid pad (32), and the surface of the anti-skid pad (32) is provided with anti-skid patterns.

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