A tubing threading device for heat shrinkable tube production

Abstract

The present invention relates to the technical field of heat shrinkable tube threading, and specifically relates to a tube threading device for heat shrinkable tube production, which includes a bearing mechanism and a driving mechanism, a tube wall cleaning mechanism installed on the bearing mechanism, and a tube body progressive mechanism installed on the bearing mechanism. The driving mechanism is installed on the tube body progressive mechanism; the bearing mechanism includes a scale scraping component, an air-dried end tube, and a heat shrinkable tube penetrating into the air-dried end tube. The scale scraping component is used to remove the water mist of dirt. By providing a suspended and horizontally delivered platform for the heat shrinkable tube, when the heat shrinkable tube passes through the preliminary delivery and cleaning and brushing of the tube wall cleaning mechanism, the delivered tube body enters the secondary tensioning delivery of the two groups of roller pressing components. At this time, the heat shrinkable tube that is straightened and cleaned can smoothly enter the cutting and tube threading component. When the mechanical claw grabs the tube wall, it can avoid the compression of the tube wall caused by gravel or dirt.

Description

Technical Field

[0001] The present invention relates to the technical field of heat shrinkable tube threading, and specifically to a threading device for heat shrinkable tube production. Background Art

[0002] Heat shrinkable tubes have functions such as high-temperature shrinkage, soft flame retardancy, insulation and corrosion prevention, and are widely used in the insulation protection of various wire harnesses, solder joints, inductors, and the rust and corrosion prevention of metal pipes and rods. Currently, the threading methods of heat shrinkable tubes mainly include manual and automatic threading devices. Among them, manual threading takes a long time and has a high unit price, so the automatic threading device has become the first choice at present.

[0003] Currently, the automatic threading device is divided into two parts, namely a cutting and threading component and a combing and feeding component. Although the threading technology of heat shrinkable tubes has gradually become mature, there are still certain defects in the operation process of the automatic threading device. Since the heat shrinkable tube needs to be delivered to the cutting and threading component after being manufactured, the dragged heat shrinkable tube is very easy to drag on the ground, and then gravel or dirt on the ground will adhere to the tube wall. When the heat shrinkable tube enters the cutting and threading component and is grabbed by the mechanical claw, the gravel or dirt will cause pressure on the tube body, resulting in cracking of the tube wall.

[0004] In view of the above, the present invention designs a threading device for heat shrinkable tube production to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by the present invention is as follows:

[0007] A threading device for heat shrinkable tube production, including a carrying mechanism, a driving mechanism, a tube wall cleaning mechanism installed on the carrying mechanism, and a tube body feeding mechanism installed on the carrying mechanism, wherein the driving mechanism is installed on the tube body feeding mechanism;

[0008] The carrying mechanism includes a dirt scraping component, an air-dried end tube, and a heat shrinkable tube penetrating into the air-dried end tube, and the dirt scraping component is used to remove the water mist of dirt;

[0009] The tube wall cleaning mechanism includes two brush pieces arranged on both sides of the outside of the heat shrinkable tube, a sleeve arranged outside the brush pieces, and a cushion block installed outside the sleeve;

[0010] The brush pieces are used for initially delivering the heat shrinkable tube and for cleaning the surface of the heat shrinkable tube;

[0011] The tube body feeding mechanism includes two groups of roller pressing components installed on both sides of the outside of the heat shrinkable tube;

[0012] The rolling component is used for secondarily delivering the heat-shrinkable tube;

[0013] The driving mechanism is used to provide rotational kinetic energy for two groups of rolling components.

[0014] In a preferred example of the present invention, it can be further configured that: the bearing mechanism further includes a base, two brackets installed on the base, an outer frame installed on the base, an air pipe connected to the air-drying end tube, and a water pipe connected to the scale scraping component.

[0015] In a preferred example of the present invention, it can be further configured that: the scale scraping component is composed of two scraping heads and a U-shaped conduit, and a rectangular cavity is opened inside the scraping head, and atomizing spray holes are opened in the outer head of the scraping head;

[0016] The water pipe is connected to the U-shaped conduit.

[0017] In a preferred example of the present invention, it can be further configured that: a cylindrical cavity is opened inside the air-drying end tube, and uniformly distributed air holes are opened on the inner wall of the air-drying end tube.

[0018] In a preferred example of the present invention, it can be further configured that: the pipe wall cleaning mechanism further includes a bottom plate installed at one end of the bracket, a top plate arranged directly above the bottom plate, a first transmission component installed on the top plate, two auxiliary rotating wheels movably installed inside the bottom plate and the top plate, a driving wheel driving one of the brush pieces, and a linkage wheel driving the other brush piece;

[0019] Gears are installed on the vertical shafts in the middle of the linkage wheel and the driving wheel;

[0020] The first transmission component is composed of a first chassis and a first motor.

[0021] In a preferred example of the present invention, it can be further configured that: the number of the sleeves is two, and the sleeves are made of ceramic materials;

[0022] The cushion block is made of aluminum alloy material and is used to reduce the load of delivering the heat-shrinkable tube. Two screws are respectively installed at the top and bottom of the cushion block, and nuts are connected to the screws.

[0023] In a preferred example of the present invention, it can be further configured that: the brush piece is composed of a rubber outer layer and a cotton layer, and corrugated transverse grooves are opened inside the cotton layer for rolling and brushing the gravel and dirt on the wall of the heat-shrinkable tube.

[0024] In a preferred example of the present invention, it can be further configured that: the tube body progressive mechanism further includes two groups of propulsion components;

[0025] The propulsion assembly includes a rail lying on the other end of the bracket, a cover installed at the outer end of the rail lying, a threaded sleeve installed in the middle of the cover, a screw rod threadedly installed inside the threaded sleeve, and a spring disposed outside the screw rod;

[0026] A beam rod is installed outside the rail lying, a compression spring is disposed outside the beam rod, and a baffle is installed at the outer end of the beam rod by bolts.

[0027] In a preferred example of the present invention, it can be further configured that: the roll pressing assembly further includes two main housings movably installed inside the rail lying, a sub-housing installed on the main housings, a drive shaft member movably installed inside the two main housings, an auxiliary rotating shaft member movably installed inside the two sub-housings, an expandable inner pad installed on the drive shaft member, a wheel disc installed outside the expandable inner pad, an anti-slip pad sleeved in the annular groove outside the wheel disc, and a washer disposed on the top of the wheel disc;

[0028] The anti-slip pad is made of rubber material.

[0029] In a preferred example of the present invention, it can be further configured that: the drive mechanism includes a second transmission assembly installed on the two beam rods, two groups of clamping seats installed on the top of the second transmission assembly, a vertical shaft movably installed inside two of the clamping seats, and a chain transmitted on the vertical shaft;

[0030] The other end of the chain is transmitted to the gear piece built in the bottom of the auxiliary rotating shaft member;

[0031] The second transmission assembly is composed of a second machine box and a second motor.

[0032] By adopting the above technical solutions, the beneficial effects obtained by the present invention are:

[0033] 1. The present invention provides a suspended and horizontally delivered platform for the heat shrinkable tube. When the heat shrinkable tube is preliminarily delivered and its surface is scrubbed by the tube wall cleaning mechanism, the delivered tube body enters the secondary tension delivery of the two groups of roll pressing assemblies. At this time, the heat shrinkable tube that is straightened and surface-cleaned can smoothly enter the cutting and pipe threading assembly. When the mechanical claw grabs the tube wall, it can avoid the compression of gravel or dirt on the tube wall.

[0034] 2. The present invention sets a dirt scraping assembly inside the base and connects the water pipe with the dirt scraping assembly. When dirt accumulates on the surfaces of the two brush pieces and passes through the dirt scraping assembly, combined with the sprayed water mist, the dirt accumulated on the brush pieces can be washed, and finally the tube wall of the heat shrinkable tube can be continuously cleaned to ensure that the pipe threading operation can be continuously carried out on the tube body while the pipe threading device is not shut down. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram when the present invention is in use;

[0036] Figure 2 It is a schematic upward view of the present invention;

[0037] Figure 3 It is a schematic view of the carrying mechanism of the present invention;

[0038] Figure 4 For the present invention Figure 3 An enlarged schematic view of part A in the present invention;

[0039] Figure 5 It is a partial sectional schematic view of the scale scraping assembly of the present invention;

[0040] Figure 6 It is a schematic view of the pipe wall cleaning mechanism of the present invention;

[0041] Figure 7 It is a dispersion schematic view of the pipe wall cleaning mechanism of the present invention;

[0042] Figure 8 For the present invention Figure 7 An upward schematic view of a part of the present invention;

[0043] Figure 9 It is a dispersion schematic view of the pipe body progressive mechanism of the present invention;

[0044] Figure 10 It is a schematic view of the propulsion assembly and the roll pressing assembly of the present invention;

[0045] Figure 11 It is an internal dispersion schematic view of the roll pressing assembly of the present invention;

[0046] Figure 12 It is a schematic view of the driving mechanism of the present invention.

[0047] Reference numerals:

[0048] 100, carrying mechanism; 110, base; 120, scale scraping assembly; 130, water pipe; 140, outer frame; 150, air drying end pipe; 160, air pipe; 170, heat shrinkable tube; 180, support;

[0049] 200, pipe wall cleaning mechanism; 210, bottom plate; 220, top plate; 230, first transmission assembly; 240, auxiliary runner; 250, linkage wheel; 260, driving wheel; 270, spacer; 280, sleeve; 290, brush piece;

[0050] 300, Tube body progressive mechanism; 310, Propulsion component; 311, Rail lying; 312, Cover; 313, Threaded sleeve; 314, Screw; 315, Spring; 320, Roller pressing component; 321, Main housing; 322, Sub-housing; 323, Transmission shaft component; 324, Expanding inner pad; 325, Auxiliary rotating shaft component; 326, Wheel disc; 327, Anti-slip pad; 328, Washer; 330, Beam rod; 340, Compression spring; 350, Baffle plate;

[0051] 400, Driving mechanism; 410, Second transmission component; 420, Clamping seat; 430, Vertical shaft; 440, Chain. Detailed implementation manners

[0052] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0053] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0054] The following describes a tube threading device for heat shrinkable tube production provided by some embodiments of the present invention with reference to the accompanying drawings. Embodiment 1:

[0055] Combined with Figures 1-12 As shown, a tube threading device for heat shrinkable tube production provided by the present invention includes a bearing mechanism 100 and a driving mechanism 400, a tube wall cleaning mechanism 200 installed on the bearing mechanism 100, and a tube body progressive mechanism 300 installed on the bearing mechanism 100. The driving mechanism 400 is installed on the tube body progressive mechanism 300. The bearing mechanism 100 is used to provide a stable bearing platform for the tube wall cleaning mechanism 200 and the tube body progressive mechanism 300. The tube wall cleaning mechanism 200 is used for initially delivering the heat shrinkable tube and at the same time cleaning the hot water tube. The tube body progressive mechanism 300 is used for secondarily delivering the heat shrinkable tube and tightening the heat shrinkable tube. The driving mechanism 400 is used to provide a uniform delivery kinetic energy for the tightened heat shrinkable tube.

[0056] The bearing mechanism 100 includes a base 110, a dirt scraping assembly 120, a water pipe 130, an outer frame 140, an air drying end pipe 150, an air pipe 160, a heat shrinkable tube 170, and a bracket 180. The tube wall cleaning mechanism 200 includes a bottom plate 210, a top plate 220, a first transmission assembly 230, an auxiliary rotating wheel 240, a linkage wheel 250, a driving wheel 260, a cushion block 270, a sleeve 280, and a brush piece 290. The tube body advancing mechanism 300 includes a propulsion assembly 310, a rolling pressure assembly 320, a beam rod 330, a compression spring 340, and a baffle 350. The propulsion assembly 310 further includes a laying rail 311, a cover 312, a threaded sleeve 313, a screw rod 314, and a spring 315. The rolling pressure assembly 320 further includes a main housing 321, a sub-housing 322, a transmission shaft member 323, an expandable inner pad 324, an auxiliary rotating shaft member 325, a wheel disc 326, an anti-slip pad 327, and a washer 328. The driving mechanism 400 includes a second transmission assembly 410, a clamping seat 420, a vertical shaft 430, and a chain 440.

[0057] Among them, the bearing mechanism 100 includes a dirt scraping assembly 120, an air drying end pipe 150, and a heat shrinkable tube 170 penetrating into the air drying end pipe 150. The dirt scraping assembly 120 is used to remove the water mist of dirt;

[0058] The tube wall cleaning mechanism 200 includes two brush pieces 290 arranged on both outer sides of the heat shrinkable tube 170, a sleeve 280 arranged outside the brush piece 290, and a cushion block 270 installed outside the sleeve 280;

[0059] The brush piece 290 is used for initially delivering the heat shrinkable tube 170 and for cleaning the surface of the heat shrinkable tube 170;

[0060] The tube body advancing mechanism 300 includes two groups of rolling pressure assemblies 320 installed on both outer sides of the heat shrinkable tube 170;

[0061] The rolling pressure assembly 320 is used for secondarily delivering the heat shrinkable tube 170;

[0062] The driving mechanism 400 is used to provide rotational kinetic energy for the two groups of rolling pressure assemblies 320;

[0063] The driving mechanism 400 includes a second transmission assembly 410 installed on two beam rods 330, two groups of clamping seats 420 installed on the top of the second transmission assembly 410, a vertical shaft 430 movably installed in two of the clamping seats 420, and a chain 440 transmitted on the vertical shaft 430;

[0064] The other end of the chain 440 is transmitted to the gear piece at the bottom of the auxiliary rotating shaft member 325;

[0065] The second transmission assembly 410 is composed of a second chassis and a second motor.

[0066] Since the current automatic heat shrink tube threading device is in use, the heat shrink tubes to be made need to be continuously delivered by the delivery component. Eventually, the mechanical claws in the tube threading component can cut and grab the delivered heat shrink tubes. Finally, one end of the heat shrink tube is preheated and assembled on the component. However, during the continuous delivery of the heat shrink tube, the tube body will be dragged and show a trailing phenomenon. As a result, the dust or dirt on the ground will contaminate the tube wall of the heat shrink tube. Once the heat shrink tube is continuously stretched and the gravel or dirt is not cleaned, when the mechanical claws exert pressure on the tube wall, the gravel or dirt will squeeze the tube body, and in severe cases, the heat shrink tube will be squeezed and damaged.

[0067] When the device is in use, the heat shrink tube 170 is pre-delivered along the gap inside the dirt scraping component 120 until the heat shrink tube 170 passes through the two brush pieces 290. When the first motor in the first transmission component 230 starts, the internal transmission shaft will drive the driving wheel 260 to rotate. At this time, the driving wheel 260 will drive the linkage wheel 250. While the two brush pieces 290 rotating at the same speed and in opposite directions provide the initial delivery kinetic energy for the heat shrink tube 170, they can also clean the gravel and dirt on the tube wall of the heat shrink tube 170. The dirt scraping component 120 is connected to the water pipe 130. As the two scraping heads in the dirt scraping component 120 spray water mist, the brush pieces 290 passing through the scraping heads can be cleaned of dirt. At the same time, under the operation of exhausting air outward by the air drying end pipe 150 arranged outside the heat shrink tube 170, the heat shrink tube 170 can be quickly air-dried. Finally, with the secondary assistance of the two anti-slip pads 327, the heat shrink tube 170 can be tightened and delivered to the mechanical claws at a constant speed, so as to ensure that the heat shrink tube 170 can maintain a clean state during the tube threading operation. Embodiment 2:

[0068] Combined with Figures 3-6 As shown, on the basis of Embodiment 1, the bearing mechanism 100 further includes a base 110, two brackets 180 installed on the base 110, an outer frame 140 installed on the base 110, an air pipe 160 connected to the air drying end pipe 150, and a water pipe 130 connected to the dirt scraping component 120;

[0069] A vertical groove is formed inside the base 110, and the base 110 is made of stainless steel plate;

[0070] The dirt scraping component 120 is composed of two scraping heads and a U-shaped conduit. A rectangular cavity is formed inside the scraping head, and atomizing spray holes are formed in the outer head of the scraping head;

[0071] The water pipe 130 is connected to the U-shaped conduit;

[0072] A cylindrical cavity is formed inside the air drying end pipe 150, and uniformly distributed air holes are formed on the inner wall of the air drying end pipe 150;

[0073] The number of brackets 180 is two.

[0074] By fixedly installing the air-drying end pipe 150 on the top of the outer frame 140, at this time, the two scraping heads in the scale scraping assembly 120 will be parallel to the air-drying end pipe 150 in the horizontal direction. When the water pipe 130 is connected to the U-shaped conduit, the two scraping heads in the scale scraping assembly 120 can pressurize and discharge the water mist outward, and the pipe wall cleaning mechanism 200 arranged between the scraping heads and the air-drying end pipe 150 can be continuously washed and cleaned. When the heat shrinkable tube 170 passes through the pipe wall cleaning mechanism 200 and is washed, the two scraping heads can clean the accumulated dirt. Finally, combined with the extrusion of the excess water by the scraping heads, it can ensure that the heat shrinkable tube 170 is cleaned while avoiding excessive water accumulation on the surface area of the heat shrinkable tube 170. Embodiment Three:

[0075] Combined with Figures 3-8 As shown in the figure, on the basis of Embodiment One, the pipe wall cleaning mechanism 200 further includes a bottom plate 210 installed at one end of the bracket 180, a top plate 220 arranged directly above the bottom plate 210, a first transmission component 230 installed on the top plate 220, two auxiliary rotating wheels 240 movably installed in the bottom plate 210 and the top plate 220, a driving wheel 260 driving one of the brush pieces 290, and a linkage wheel 250 driving the other brush piece 290;

[0076] Both the bottom plate 210 and the top plate 220 are made of thickened aluminum alloy material;

[0077] Gears are installed on the vertical shafts in the middle of the linkage wheel 250 and the driving wheel 260. The first transmission component 230 consists of a first chassis and a first motor, and the top end of the vertical shaft in the driving wheel 260 is adaptively penetrated to the outside of the top plate 220 and connected to the transmission shaft of the first motor;

[0078] The number of sleeves 280 is two, and the sleeves 280 are made of ceramic material;

[0079] The cushion block 270 is made of aluminum alloy material and is used to reduce the load of delivering the heat shrinkable tube 170. Screws are respectively installed at the top and bottom of the cushion block 270, and nuts are connected to the screws;

[0080] The brush piece 290 consists of a rubber outer layer and a cotton layer, and corrugated horizontal grooves are formed on the inner side of the cotton layer for rolling and brushing the gravel and dirt on the wall of the heat shrinkable tube 170.

[0081] By arranging one of the brush pieces 290 on one of the auxiliary rotating wheels 240 and the driving wheel 260, and arranging the other brush piece 290 on the other auxiliary rotating wheel 240 and the linkage wheel 250, with the start of the first motor, the internal transmission shaft thereof will drive the driving wheel 260, and the gears in the driving wheel 260 will mesh and drive the gears in the linkage wheel 250. At this time, the two brush pieces 290 can rotate at the same speed and in opposite directions, and cooperate with the pressing of the other two scraping heads in the scale scraping assembly 120 on the cotton layers in the two brush pieces 290. As the brush pieces 290 continue to rotate, the water accumulated excessively in the cotton layers will be squeezed out by the scraping heads, so that while ensuring the cleaning of the gravel or dirt on the surface of the heat shrinkable tube 170, the humidity on the surface of the heat shrinkable tube 170 can be reduced, facilitating the quick air drying by the air drying end tube 150. Embodiment 4:

[0082] Combined with Figures 3-12 As shown, on the basis of Embodiment 1, the pipe body progressive mechanism 300 further includes two sets of propulsion components 310;

[0083] The propulsion component 310 includes a horizontal rail 311 installed at the other end of the bracket 180, a cover 312 installed at the outer end of the horizontal rail 311, a threaded sleeve 313 installed in the middle of the cover 312, a screw rod 314 threadedly installed inside the threaded sleeve 313, and a spring 315 arranged outside the screw rod 314;

[0084] A beam rod 330 is installed outside the horizontal rail 311, a compression spring 340 is arranged outside the beam rod 330, and a baffle 350 is installed at the outer end of the beam rod 330 by bolts;

[0085] The roll pressing component 320 further includes two main outer shells 321 movably installed inside the horizontal rail 311, a sub-outer shell 322 installed on the main outer shell 321, a transmission shaft member 323 movably installed inside the two main outer shells 321, an auxiliary rotating shaft member 325 movably installed inside the two sub-outer shells 322, an expansion inner pad 324 installed on the transmission shaft member 323, a wheel disc 326 installed outside the expansion inner pad 324, an anti-slip pad 327 sleeved in the outer ring groove of the wheel disc 326, and a washer 328 arranged on the top of the wheel disc 326;

[0086] The anti-slip pad 327 is made of rubber material.

[0087] By movably mounting the second transmission assembly 410 outside the two beam rods 330 and cooperating with the baffle 350 to limit the second transmission assembly 410, when the two sets of roller pressing assemblies 320 are pushed and approach the heat shrinkable tube 170, the two compression springs 340 can apply a lateral thrust to the second transmission assembly 410, and the tightened second transmission assembly 410 can cooperate with the two sets of clamping seats 420 and the two vertical shafts 430 to tighten the two chains 440. With the start of the second motor inside the second transmission assembly 410, the internal transmission shaft thereof will cooperate with the gears to drive the two vertical shafts 430, and the two driven vertical shafts 430 will drive the two chains 440. Furthermore, the two auxiliary rotating shaft members 325 will be driven by the two chains 440, and finally the auxiliary rotating shaft members 325 will drive the transmission shaft members 323, the expansion inner pads 324 and the disc wheels 326 in a linkage manner, so that while the heat shrinkable tube 170 after cleansing can be tightened, the shaking amplitude during the delivery of the heat shrinkable tube 170 can be avoided.

[0088] Working principle and usage process of the present invention: First, introduce one end of the heat shrinkable tube 170 from the vertical slot at the top of the base 110, and then stretch the heat shrinkable tube 170 from the gap in the middle of the scale scraping assembly 120 until the heat shrinkable tube 170 passes through the inner cavity of the air drying end tube 150. At this time, the heat shrinkable tube 170 preliminarily limited by the air drying end tube 150 will enter the gap formed by the two brush pieces 290. When the first motor in the first transmission assembly 230 starts, the drive shaft inside the first motor will drive the drive wheel 260. At this time, the gear in the drive wheel 260 will engage and drive the linkage wheel 250. The drive wheel 260 and the linkage wheel 250 rotating at the same speed and in opposite directions can cooperate with the two auxiliary rotating wheels 240 to drive the two brush pieces 290 for the second transmission. At this time, the two brush pieces 290 rotating at the same speed can apply a uniformly transverse thrust to the two side walls of the heat shrinkable tube 170. As the heat shrinkable tube 170 is pushed horizontally, finally the heat shrinkable tube 170 will pass through the gap between the two sets of discs 326 and the anti-slip pads 327. According to the requirement of the pressure exerted by the two anti-slip pads 327 on the outer wall of the heat shrinkable tube 170, the worker needs to rotate the two screws 314 clockwise until the two main housings 321 movably installed in the inner slide of the horizontal rail 311 are pressed against the heat shrinkable tube 170 along the inner slide of the horizontal rail 311. The second transmission assembly 410 movably installed outside the two beam rods 330 will be pushed outward horizontally by the two compression springs 340. At this time, the two chains 440 will always be in a taut state. When the second motor in the second transmission assembly 410 starts, the gears on its inner drive shaft will simultaneously engage and drive the two vertical shafts 430. At this time, the two vertical shafts 430 can drive the two chains 440, and the two chains 440 will drive the two auxiliary rotating shaft members 325. And a gear piece built into the auxiliary rotating shaft member 325 will link the transmission shaft member 323. At this time, the discs 326 and the anti-slip pads 327 installed on the expansion inner pad 324 will apply an auxiliary rotating thrust to the tube wall of the heat shrinkable tube 170. At this time, the heat shrinkable tube 170 horizontally pushed can avoid shaking during the pipe threading process. As the heat shrinkable tube 170 continues to be delivered, the gravel and dirt adhering to its outer tube wall can be brushed by the two boosting and rotating brush pieces 290. At the same time, the two continuously rotating brush pieces 290 will pass through the two scraping heads of the scale scraping assembly 120. Since the two scraping heads of the scale scraping assembly 120 will continuously spray water mist, the two brush pieces 290 can be continuously cleaned when passing through the two ends of the scale scraping assembly 120 and in cooperation with the action of the water mist. After cleaning and waiting for pipe threading, the heat shrinkable tube 170 will be quickly dried under the blowing action of the outward air exhausting air drying end tube 150, thereby avoiding problems such as slipping or indirectly causing tube wall cracking due to the extrusion of gravel or dirt by the manipulator during the pipe threading of the heat shrinkable tube 170.

[0089] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tube threading device for heat shrinkable tube production, comprising a carrying mechanism (100) and a driving mechanism (400), characterized in that, It also includes a pipe wall cleaning mechanism (200) installed on the bearing mechanism (100) and a pipe body advancing mechanism (300) installed on the bearing mechanism (100), and the driving mechanism (400) is installed on the pipe body advancing mechanism (300); the bearing mechanism (100) includes a scale scraping component (120), a drying end pipe (150), and a heat shrinkable tube (170) penetrating into the drying end pipe (150), and the scale scraping component (120) sprays water mist to remove dirt; the pipe wall cleaning mechanism (200) includes two brush pieces (290) arranged on both sides of the outside of the heat shrinkable tube (170), a sleeve (280) arranged outside the brush pieces (290), and a cushion block (270) installed outside the sleeve (280); the brush pieces (290) are used for initially delivering the heat shrinkable tube (170) and for cleaning the surface of the heat shrinkable tube (170); the pipe body advancing mechanism (300) includes two groups of roller pressing components (320) installed on both sides of the outside of the heat shrinkable tube (170); the roller pressing components (320) are used for secondarily delivering the heat shrinkable tube (170); the driving mechanism (400) is used to provide rotational kinetic energy for the two groups of roller pressing components (320); the pipe body advancing mechanism (300) also includes two groups of propulsion components (310); the propulsion components (310) include a horizontal rail (311) installed at the other end of the bracket (180), a cover (312) installed at the outer end of the horizontal rail (311), a threaded sleeve (313) installed in the middle of the cover (312), a screw (314) threadedly installed inside the threaded sleeve (313), and a spring (315) arranged outside the screw (314); a beam rod (330) is installed outside the horizontal rail (311), a compression spring (340) is arranged outside the beam rod (330), and a baffle (350) is installed at the outer end of the beam rod (330) by using bolts; the roller pressing component (320) also includes two main housings (321) movably installed inside the horizontal rail (311), a sub-housing (322) installed on the main housing (321), a transmission shaft member (323) movably installed inside the two main housings (321), an auxiliary rotating shaft member (325) movably installed inside the two sub-housings (322), and a wheel disc (326) installed outside the transmission shaft member (323); the driving mechanism (400) includes a second transmission component (410) installed on the two beam rods (330), two groups of clamping seats (420) installed on the top of the second transmission component (410), a vertical shaft (430) movably installed inside two of the clamping seats (420), and a chain (440) transmitted on the vertical shaft (430); the other end of the chain (440) is transmitted to the gear piece at the bottom of the auxiliary rotating shaft member (325); when the two groups of roller pressing components (320) are pushed and close to the heat shrinkable tube (170), the two compression springs (340) apply a lateral thrust to the second transmission component (410), so that the chain (440) is tightened, and the wheel disc (326) is driven to rotate through the auxiliary rotating shaft member (325).

2. The tube threading device for heat shrinkable tube production according to claim 1, characterized in that, The bearing mechanism (100) further includes a base (110), two brackets (180) mounted on the base (110), an outer frame (140) mounted on the base (110), an air pipe (160) connected to the air-drying end pipe (150), and a water pipe (130) connected to the scale scraping assembly (120).

3. The tube threading device for heat shrinkable tube production according to claim 2, wherein, The scale scraping assembly (120) is composed of two scraping heads and a U-shaped conduit. A rectangular cavity is formed inside the scraping head, and atomizing spray holes are formed in the outer head of the scraping head; the water pipe (130) is connected to the U-shaped conduit.

4. A tube threading device for heat shrinkable tube production according to claim 1, characterized in that, A cylindrical cavity is formed inside the air-drying end pipe (150), and uniformly distributed air holes are formed in the inner wall of the air-drying end pipe (150).

5. A tube threading device for heat shrinkable tube production according to claim 2, characterized in that, The pipe wall cleaning mechanism (200) further includes a bottom plate (210) mounted at one end of the bracket (180), a top plate (220) disposed directly above the bottom plate (210), a first transmission assembly (230) mounted on the top plate (220), two auxiliary rotating wheels (240) movably installed inside the bottom plate (210) and the top plate (220), a driving wheel (260) driving one of the brush pieces (290), and a linkage wheel (250) driving the other brush piece (290); gears are mounted on the vertical shafts in the middle of the linkage wheel (250) and the driving wheel (260); the first transmission assembly (230) consists of a first chassis and a first motor.

6. The tube threading device for heat shrinkable tube production according to claim 5, characterized in that, The number of the sleeves (280) is two, and the sleeves (280) are made of ceramic materials; the cushion blocks (270) are made of aluminum alloy materials and are used to reduce the load of delivering the heat shrinkable tube (170). Two screws are respectively mounted on the top and bottom of the cushion blocks (270), and nuts are connected to the screws.

7. A tube threading device for heat shrinkable tube production according to claim 1, wherein, The brush piece (290) is composed of a rubber outer layer and a cotton layer, and corrugated transverse grooves are formed inside the cotton layer for rolling and brushing the gravel and dirt on the wall of the heat shrinkable tube (170).

8. A tube threading device for heat shrinkable tube production according to claim 1, characterized in that, The rolling press assembly (320) further includes an expandable inner pad (324) mounted on the transmission shaft member (323), an anti-slip pad (327) sleeved in the outer ring groove of the wheel disc (326), and a washer disposed on the top of the wheel disc (326); the second transmission assembly (410) consists of a second chassis and a second motor.

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