Auxiliary traction device of heat shrink tube positive-pressure tube expanding machine

Abstract

The utility model discloses an auxiliary traction device of a heat shrink tube positive-pressure tube expander, which comprises a rack and a tube expanding die mounted on the rack, one end of the tube expanding die is butted with pressure-maintaining heating equipment, the other end of the tube expanding die is butted with cooling equipment, mounting seats are symmetrically arranged on the upper side and the lower side of the tube expanding die, and a plurality of transmission wheels are mounted on the mounting seats. The transmission wheel is connected with a traction transmission assembly fixedly installed in the installation base, the transmission wheel is sleeved with a traction belt, the traction belt is attached to the inner wall of the pipe expanding die and penetrates through the pipe expanding die, and the traction transmission assembly drives the traction belt through the transmission wheel to continuously advance in the pipe expanding die in the moving direction of the heat shrink pipe. And auxiliary traction force is provided for the heat shrink tube to pass through the tube expanding die. The traction device can provide stable and adjustable traction force, ensures that a heat shrink tube can smoothly and stably pass through a mold in the tube expanding process, is simple and convenient to operate and flexible to adjust, and can meet the tube expanding requirements of heat shrink tubes of different types and specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat shrink tube production equipment field, concretely relates to a heat shrink tube positive pressure pipe expanding machine auxiliary traction device. BACKGROUND

[0002] In the heat shrink tube processing industry, the positive pressure pipe expanding machine is a key equipment for manufacturing heat shrink tubes. The traditional positive pressure pipe expanding machine forms heat shrink tubes through the processes of heating, expanding and cooling. In the production and processing of heat shrink tubes, pipe expansion is a crucial link. The traditional heat shrink tube pipe expanding equipment mainly expands the heat shrink tube to the required size in the mold through heating and pressure maintaining. However, in actual operation, the existing equipment often faces the problem of insufficient pipe expansion traction. Specifically, the traditional pipe expanding equipment often relies only on the material properties of the heat shrink tube itself and the constraint of the mold to achieve pipe expansion, and lacks additional traction to assist the heat shrink tube to smoothly pass through the mold. In this case, the heat shrink tube is prone to jamming, twisting or deformation during pipe expansion, which seriously affects the quality and efficiency of pipe expansion. SUMMARY

[0003] The utility model aims at providing a heat shrink tube positive pressure pipe expanding machine auxiliary traction device, overcoming the problem of insufficient pipe expansion traction in existing equipment, and improving the quality and efficiency of heat shrink tube pipe expansion.

[0004] The technical scheme adopted by the utility model is as follows: a heat shrink tube positive pressure pipe expanding machine auxiliary traction device, comprising a rack and a pipe expanding mold installed on the rack, one end of the pipe expanding mold is connected to a pressure maintaining and heating equipment, the other end is connected to a cooling equipment, two symmetrical mounting seats are arranged on the upper and lower sides of the pipe expanding mold, a plurality of transmission wheels are installed on the mounting seats, the transmission wheels are connected with a traction transmission assembly fixedly installed in the mounting seat, a traction belt is sleeved on the transmission wheel, the traction belt passes through the pipe expanding mold along the inner wall of the pipe expanding mold, and the traction transmission assembly drives the traction belt to continuously move in the direction of the heat shrink tube in the pipe expanding mold through the transmission wheel, thereby providing auxiliary traction for the heat shrink tube passing through the pipe expanding mold.

[0005] Further, two groups of traction belts, transmission wheels and traction transmission assemblies corresponding to the traction belts are arranged on the upper and lower mounting seats respectively, and the four groups of traction belts are uniformly arranged along the circumferential direction of the inner wall of the pipe expanding mold.

[0006] Further, a plurality of tensioning wheels matched with the traction belts are installed on the mounting seat.

[0007] Further, the traction transmission assembly comprises a driving motor, and the output end of the driving motor is in transmission connection with the transmission wheel through a gear set.

[0008] Further, a wind cover is mounted on the top of the rack, and the top of the wind cover is connected with an air extraction system.

[0009] Further, a lead screw is vertically mounted on each side of the rack, and the lead screw is rotationally connected with the rack, and a driving mechanism is connected with one end of the lead screw, and opposite threads are arranged on the upper and lower ends of the lead screw, and the upper and lower mounting seats are threadedly connected with the lead screw through the nut seat.

[0010] Further, a guide rod is arranged on each side of the rack and slidably matched with the mounting seat.

[0011] The beneficial effects of the utility model lie in that: the utility model sets multiple groups of traction belts, transmission wheels corresponding to the traction belts and traction transmission assemblies on the upper and lower mounting seats respectively, can provide stable and adjustable traction force for the heat shrink tube, the multiple groups of traction belts are evenly arranged along the circumferential direction on the inner wall of the pipe expanding mold, the uniformity and stability of the traction force are ensured, the problems of blockage, distortion or deformation of the heat shrink tube in the pipe expanding process are effectively avoided, the heat shrink tube can smoothly and stably pass through the mold in the pipe expanding process, the pipe expanding efficiency is improved, and the pipe expanding quality is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall structure schematic view of the utility model.

[0013] Figure 2 It is the internal structure schematic view of the utility model.

[0014] Figure 3 It is the structure schematic view of the mounting seat and components thereon.

[0015] Figure 4 It is the overall cooperation schematic view of the utility model with the pressure maintaining and heating equipment and the cooling equipment. DETAILED DESCRIPTION

[0016] In order to facilitate understanding of the utility model, the utility model will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the protection scope of the utility model is not limited to the following specific embodiments.

[0017] As shown in Figures 1-3 The heat shrink tube positive pressure pipe expanding machine auxiliary traction device of the embodiment comprises a rack 1, a pipe expanding mold 2, the rack 1 is used as the basic support structure of the whole device, and ensures stable installation and operation of each component. The pipe expanding mold 2 is installed on the rack 1 and is the main working component for heat shrink tube pipe expansion, one end of the pipe expanding mold 2 is connected with a pressure maintaining and heating equipment and is used for heating and pressure maintaining treatment of the heat shrink tube, and the other end is connected with a cooling equipment and is used for cooling and shaping of the heat shrink tube after pipe expansion (see Figure 4 ).

[0018] The mounting seat 4 is symmetrically arranged on the upper and lower sides of the expanding tube mold 2, a plurality of transmission wheels 5 are mounted on the mounting seat 4, the transmission wheel 5 is connected with a traction transmission assembly 10 fixedly installed in the mounting seat 4, a traction belt 6 is sleeved on the transmission wheel 5, and the traction belt 6 passes through the expanding tube mold 2 along the inner wall of the expanding tube mold 2. The traction transmission assembly 10 drives the traction belt 6 to continuously move along the movement direction of the heat shrink tube in the expanding tube mold 2 through the transmission wheel 5, so as to provide auxiliary traction force for the heat shrink tube passing through the expanding tube mold 2. The traction transmission assembly 10 comprises a driving motor, and the output end of the driving motor is in transmission connection with the transmission wheel 5 through a gear set. A plurality of tensioning wheels 9 matched with the traction belt 6 are also mounted on the mounting seat 4, so that the tensioning degree and stability of the traction belt 6 in the expanding tube process are ensured.

[0019] In the embodiment, two groups of traction belts 6, transmission wheels 5 and traction transmission assemblies 10 corresponding to the traction belts 6 are respectively arranged on the upper and lower mounting seats 4, and the four groups of traction belts 6 are uniformly arranged along the circumferential direction of the inner wall of the expanding tube mold 2. The four groups of traction belts are uniformly arranged along the circumferential direction, so that the heat shrink tube can be balancedly pulled in the expanding tube process. This can help to prevent the heat shrink tube from being twisted or deformed in the expanding tube process, significantly improve the stability of the heat shrink tube in the expanding tube process, and improve the quality of the expanding tube.

[0020] In the embodiment, a fan cover 3 is mounted on the top of the rack 1, and the top of the fan cover 3 is connected with an exhaust system. In the heat shrink tube heating process, the heating oil may volatilize and produce oil fume. The combination of the fan cover 3 and the exhaust system can effectively collect and discharge the oil fume, thereby significantly reducing the pollution and harm of the oil volatilization to the working environment and the operator.

[0021] In the embodiment, a lead screw 7 is vertically mounted on each side of the rack 1, the lead screw 7 is rotationally connected with the rack 1, one end of the lead screw 7 is connected with a driving mechanism, the upper and lower ends of the lead screw 7 are provided with threads in opposite directions, and the upper and lower mounting seats 4 are threadedly connected with the lead screw 7 through a nut seat. The rack 1 is provided with a guide rod 8 in sliding cooperation with the mounting seat 4 on each side. Through the design, when the lead screw rotates, the upper and lower mounting seats 4 (threadedly connected with the lead screw through the nut seat) will move simultaneously but in opposite directions, so that the expanding tube mold can be easily replaced to adapt to the expanding tube needs of heat shrink tubes of different sizes and types.

[0022] With the help of the teachings contained in the foregoing specification and associated drawings, those skilled in the art will appreciate modifications and other embodiments of the present application. Accordingly, the present application is not limited to the specific embodiments disclosed in the specification, and modifications and other embodiments are considered to be included within the scope of the appended claims. Although specific terms are employed herein, they are used only in the generic and descriptive sense, and not for purposes of limitation.

Claims

1. A heat-shrinkable tube positive pressure pipe expanding machine auxiliary traction device, comprising a rack (1) and an expanding die (2) mounted on the rack (1), one end of the expanding die (2) is connected to a pressure maintaining and heating device, and the other end is connected to a cooling device, characterized in that: The expansion pipe mold (2) is symmetrically provided with mounting seats (4) on the upper and lower sides, a plurality of transmission wheels (5) are mounted on the mounting seats (4), the transmission wheels (5) are connected with a traction transmission assembly (10) fixedly installed in the mounting seat (4), a traction belt (6) is sleeved on the transmission wheel (5), and the traction belt (6) passes through the expansion pipe mold (2) along the inner wall of the expansion pipe mold (2). The traction transmission assembly (10) drives the traction belt (6) to continuously move along the movement direction of the heat shrink tube in the expansion pipe mold (2) through the transmission wheel (5), so as to provide auxiliary traction force for the heat shrink tube passing through the expansion pipe mold (2).

2. The heat shrink tube positive pressure pipe expanding machine auxiliary traction device according to claim 1, characterized in that: Two groups of traction belts (6), transmission wheels (5) and traction transmission assemblies (10) corresponding to the traction belts (6) are respectively arranged on the upper and lower mounting seats (4), and the four groups of traction belts (6) are uniformly arranged along the circumferential direction of the inner wall of the expansion pipe mold (2).

3. The heat shrink tube positive pressure pipe expanding machine auxiliary traction device according to claim 1, characterized in that: A plurality of tension wheels (9) matched with the traction belts (6) are further mounted on the mounting seats (4).

4. The heat shrink tube positive pressure pipe expanding machine auxiliary traction device according to claim 1, characterized in that: The traction transmission assembly (10) comprises a driving motor, and the output end of the driving motor is in transmission connection with the transmission wheel (5) through a gear set.

5. The heat shrink tube positive pressure pipe expanding machine auxiliary traction device according to claim 1, characterized in that: A fan cover (3) is mounted on the top of the rack (1), and the top of the fan cover (3) is connected with an air extraction system.

6. The heat-shrinkable tube positive-expansion machine auxiliary traction device according to any one of claims 1-5, characterized in that: A lead screw (7) is vertically installed on each side of the rack (1), the lead screw (7) is rotationally connected with the rack (1), one end of the lead screw (7) is connected with a driving mechanism, and opposite threads are arranged on the upper and lower ends of the lead screw (7). The upper and lower mounting seats (4) are in threaded connection with the lead screw (7) through a nut seat.

7. The heat shrink tube positive pressure pipe expanding machine auxiliary traction device according to claim 6, characterized in that: Guide rods (8) in sliding cooperation with the mounting seats (4) are arranged on the two sides of the rack (1).

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