Expansion mold for dry expansion of fluororubber heat shrink tube

Abstract

The utility model discloses an expansion die for dry expansion of a fluororubber heat shrink tube. The expansion mold for dry expansion of the fluororubber heat shrink tube comprises a workbench, the workbench comprises a mold table, an expansion assembly is arranged on the mold table, the expansion assembly comprises a base, a fixing seat is arranged on the base, a connecting seat is arranged on the fixing seat, a limiting seat is arranged on the connecting seat, an expansion piece is arranged on the limiting seat, and the expansion piece is arranged on the mold table. The two sets of symmetrically-arranged expansion pieces are combined to form a cylinder, a positioning hole is further formed in the bottom end of the limiting base, the limiting base is clamped to a positioning column arranged on the expansion rotating disc through the positioning hole, the positioning column is arranged in an arc-shaped cavity formed in the expansion rotating disc, a rotating assembly is arranged at the lower end of the expansion rotating disc, and the rotating assembly comprises a motor main shaft. Through cooperation of the motor main shaft and the expansion rotating disc, high-precision rotation control can be provided through the motor main shaft, movement of the expansion rotating disc can be accurately controlled, and therefore accurate control over the expansion assembly is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluororubber heat shrink tube processing devices, in particular to a dry expansion die for fluororubber heat shrink tubes. Background Art

[0002] The rubber heat shrink tube dry expansion mold is a special tool for processing fluororubber heat shrink tubes. It is used to expand the fluororubber heat shrink tubes to a predetermined size so that they can be put on the wire harness or cable to be protected, and then shrink them by heating to form a tight protective layer.

[0003] In the existing dry expansion mold for fluororubber heat shrink tubing, the operator first starts the control system to start the cylinder working. After receiving the signal, the cylinder pushes the piston to extend. As the cylinder extends, the expansion device starts to work and expands the fluororubber heat shrink tubing to a predetermined size.

[0004] However, this type of mold structure has some defects. Since it is driven by a cylinder and due to the compressibility of the gas, it is difficult to control the speed of the cylinder when it moves at high speed, which affects the stability of the transmission speed during the expansion process.

[0005] Therefore, it is necessary to provide a dry expansion mold for fluororubber heat shrinkable tube to solve the above technical problems. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an expansion mold for dry expansion of fluororubber heat shrinkable tubes, which can provide more precise position control and motion control through the coordinated use of a motor and an expansion turntable, thereby ensuring the dimensional accuracy and uniformity of the fluororubber heat shrinkable tubes during the expansion process.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] An expansion mold for dry expansion of fluororubber heat shrinkable tubes, comprising: a workbench, the workbench comprising a mold table, an expansion component is arranged on the mold table, the expansion component comprises a base installed on the mold table, two groups of fixed seats are symmetrically arranged on the base, a connecting seat is arranged on the fixed seat, a limiting seat is arranged on the connecting seat, an expansion piece is also arranged on the limiting seat, the two groups of symmetrical expansion pieces are combined to form a cylinder, a positioning hole is also arranged at the bottom end of the limiting seat, the limiting seat is engaged with the positioning column arranged on the expansion turntable through the positioning hole, the positioning column is welded in the arc cavity arranged on the expansion turntable, and a rotating component is arranged at the lower end of the expansion turntable, the rotating component comprises a motor spindle installed on the bottom plate.

[0009] Preferably, a limit slot is further provided at the bottom of the expansion turntable, the shape of the limit slot is the same as the shape and size of the rotating teeth provided at the output end of the motor main shaft, and the two are engaged and connected.

[0010] Preferably, a positioning hole is provided on the expansion piece, and an adjustment cavity is also provided at the upper end of the limit seat, and an adjustment bolt is provided at the end side of the adjustment cavity, and the expansion piece is detachably mounted on the limit seat through the adjustment bolt.

[0011] Preferably, both the connecting seat and the limiting seat are provided with a positioning cavity, and the limiting seat is detachably mounted on the connecting seat by means of positioning bolts.

[0012] Preferably, a placement plate is further provided on the mold table, and a plurality of placement cavities are distributed in an array on the placement plate.

[0013] Preferably, slide rails are provided on both sides of the fixing seat, and the connecting seat slides on the fixing seat via the slide rails provided on the fixing seat.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model provides an expansion assembly and a rotation assembly. In actual use, the motor main shaft cooperates with the expansion turntable, and the motor main shaft can provide high-precision rotation control, which helps to accurately control the movement of the expansion turntable, thereby achieving accurate control of the expansion assembly;

[0016] (2) The utility model provides a limit slot provided by the expansion gear and a rotating tooth provided by the motor main shaft. In actual use, the limit slot provided by the expansion gear and the rotating tooth provided by the motor main shaft can provide a stable transmission through the interlocking connection, reduce the motion error caused by external factors (such as impact, vibration, etc.), and ensure the stability of the expansion process;

[0017] (3) The utility model can realize the rapid installation and removal of the expansion piece by using the adjustment cavity provided at the upper end of the limit seat in conjunction with the adjustment bolt. In actual use, the expansion piece is embedded in the adjustment cavity provided in the limit seat. Through the embedding of the two, the two can be tightly combined. At the same time, with the fixation of the adjustment bolt, the expansion piece can be stably installed. The stably installed expansion piece can provide a more stable expansion force, reduce the quality fluctuation caused by the displacement or loosening of the expansion piece, and thus improve the overall quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a dry expansion mold for a fluororubber heat shrink tube provided by the utility model;

[0019] Figure 2A schematic diagram of the structure of an expansion component and a rotating component of an expansion die for dry expansion of a fluororubber heat shrinkable tube provided by the utility model;

[0020] Figure 3 A schematic diagram of the expansion assembly structure of the expansion die for dry expansion of a fluororubber heat shrinkable tube provided by the utility model;

[0021] Figure 4 A schematic diagram of the connection structure between the motor main shaft and the expansion turntable of the fluororubber heat shrink tube dry expansion mold provided by the utility model;

[0022] Figure 5 The utility model provides a schematic diagram of the installation structure of the limit seat and the expansion member for the fluororubber heat shrink tube dry expansion mold.

[0023] Among them, the names corresponding to the figure numbers are: 100, workbench; 101, mold table; 102, placement plate; 200, expansion component; 201, fixed seat; 202, connecting seat; 203, limit seat; 204, positioning cavity; 205, expansion piece; 206, expansion turntable; 207, arc cavity; 208, positioning column; 209, adjustment bolt; 210, limit slot; 300, rotating component; 301, bottom plate; 302, motor spindle; 303, rotating gear. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0025] First embodiment:

[0026] like Figure 1-4As shown, the utility model provides an expansion mold for dry expansion of fluororubber heat shrinkable tubes, including: a workbench 100, the workbench 100 includes a mold table 101, an expansion component 200 is arranged on the mold table 101, and the expansion component 200 includes a base installed on the mold table 101, and two groups of fixed seats 201 are symmetrically arranged on the base, and a connecting seat 202 is arranged on the fixed seat 201, and a limited seat 203 is arranged on the connecting seat 202, and an expansion piece 205 is also arranged on the limited seat 203. The two groups of symmetrically arranged expansion pieces 205 are combined to form a cylinder, and a positioning column 208 is also arranged at the bottom end of the limiting seat 203. The limiting seat 203 is installed in the arc cavity provided by the expansion turntable 206 through the positioning column 208 provided at the bottom, and the lower end of the expansion turntable 206 is provided with a rotating component 300, and the rotating component 300 includes a cylinder installed at the bottom end. When the motor main shaft 302 on the bottom plate 301 is actually used, the staff will put the heat shrink tube to be expanded into the cylinder formed by the combination of multiple expansion pieces 205, and then start the motor main shaft 302. Through the rotation of the motor main shaft 302, the expansion turntable 206 is rotated. Since the limit seat 203 is engaged with the arc cavity 207 provided in the expansion turntable 206 through the positioning column 208, when the expansion turntable 206 rotates, the positioning column 208 is rotated in the arc cavity 207. Since the positioning column 208 is fixedly installed with the limit seat 203, the limit seat 203 is driven to move back and forth on the fixed seat 201. The expansion and contraction of the expansion piece 205 is realized by the expansion of the expansion piece 205. The expansion of the fluororubber heat shrink tube is completed.

[0027] By setting up the expansion component 200 and the rotation component 300, in actual use, through the cooperation between the motor main shaft 302 and the expansion turntable 206, high-precision rotation control can be provided by the motor main shaft 302, which helps to accurately control the movement of the expansion turntable 206, thereby achieving precise control of the expansion component 200.

[0028] Second embodiment:

[0029] like Figure 4 As shown, a limit slot 210 is also provided at the bottom of the expansion turntable 206. The shape of the limit slot 210 is the same as the shape and size of the rotating tooth 303 provided at the output end of the motor main shaft 302, and the two are connected in an interlocking manner. In actual use, the motor main shaft 302 is first fixedly installed on the bottom plate 301, and then the limit slot 210 provided at the bottom of the expansion turntable 206 is aligned with the rotating tooth 303 provided on the motor main shaft 302, so that the two are interlocked to complete the installation.

[0030] By setting the limit slot 210 of the expansion turntable 206 and the rotating gear 303 of the motor main shaft 302, in actual use, the interlocking connection between the limit slot 210 of the expansion turntable 206 and the rotating gear 303 of the motor main shaft 302 can provide stable transmission, reduce motion errors caused by external factors such as impact, vibration, etc., and ensure the stability of the expansion process.

[0031] Third embodiment:

[0032] like Figure 5 As shown, a positioning hole is provided on the expansion piece 205, and an adjustment cavity is also provided on the upper end of the limit seat 203, and an adjustment bolt 209 is provided on the end side of the adjustment cavity. The expansion piece 205 is detachably mounted on the limit seat 203 through the adjustment bolt 209. In actual use, it is only necessary to align the bottom of the expansion piece 205 with the adjustment cavity provided in the limit seat 203 so that the expansion piece 205 is embedded in the adjustment cavity, and then the expansion piece 205 is fixedly mounted on the limit seat 203 through the adjustment bolt 209 provided on the end side of the adjustment cavity.

[0033] By using the adjustment cavity opened at the upper end of the limit seat 203 in conjunction with the adjustment bolt 209, the expansion piece 205 can be quickly installed and disassembled. In actual use, the expansion piece 205 is embedded in the adjustment cavity provided in the limit seat 203. Through the embedding of the two, the two can be tightly combined. At the same time, with the fixation of the adjustment bolt 209, the expansion piece 205 can be firmly installed. The firmly installed expansion piece 205 can provide a more stable expansion force, reduce the quality fluctuation caused by the displacement or loosening of the expansion piece 205, and thus improve the overall quality of the product.

[0034] Fourth embodiment:

[0035] like Figure 3 , Figure 5 As shown, the connecting seat 202 and the limiting seat 203 are both provided with a positioning cavity 204, and the limiting seat 203 is detachably mounted on the connecting seat 202 by means of positioning bolts. During actual installation, the staff can quickly assemble the limiting seat 203 through the positioning cavity 204 provided on the connecting seat 202 and the limiting seat 203 by means of positioning bolts. At the same time, by pre-tightening the positioning bolts, the limiting seat 203 can be stably installed to prevent loosening.

[0036] Fifth embodiment:

[0037] like Figure 1As shown, a placement tray 102 is also provided on the mold table 101, and a plurality of placement cavities are distributed in an array on the placement tray 102. In actual use, by providing the placement tray 102 on the mold table 101, multiple products can be accommodated and placed on the table at the same time, which is convenient for the staff to take and operate. At the same time, by distributing a plurality of placement cavities in an array, the consistency when placing can be ensured, so that the thermoplastic tubes on the table are neatly arranged, and the appearance of the working surface is increased.

[0038] Sixth embodiment:

[0039] like Figure 3 , Figure 5 As shown, slide rails are also provided on both sides of the fixed seat 201, and the connecting seat 202 slides on the fixed seat 201 through the slide rails provided on the fixed seat 201. When the expansion turntable 206 drives the limit seat 203 to move, the slide rails are provided at both ends of the fixed seat 201, so that the friction force of the connecting seat 202 during movement can be reduced, so that the connecting seat 202 can move more smoothly. The friction force of the connecting seat 202 is reduced, thereby reducing the power consumption of the motor spindle 302 and extending the service life of the motor spindle 302.

[0040] Working principle: In actual use, the staff will put the heat shrink tube to be expanded into the cylinder formed by the combination of multiple expansion members 205, and then start the motor main shaft 302. The motor main shaft 302 rotates to rotate the expansion turntable 206. Since the limit seat 203 is engaged with the arc cavity 207 provided in the expansion turntable 206 through the positioning column 208, when the expansion turntable 206 rotates, the positioning column 208 rotates in the arc cavity 207. Since the positioning column 208 is fixedly installed with the limit seat 203, the limit seat 203 is driven to move back and forth on the fixed seat 201. The symmetrical limit seat 203 moves back and forth, thereby realizing the expansion and contraction of the expansion member 205. Through the expansion of the expansion member 205, the expansion of the fluororubber heat shrink tube is completed.

[0041] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A dry expansion mold for fluororubber heat shrinkable tube, characterized in that: include: A workbench (100), the workbench (100) comprising a mold table (101), an expansion assembly (200) being arranged on the mold table (101), the expansion assembly (200) comprising a base mounted on the mold table (101), two groups of fixed seats (201) being symmetrically arranged on the base, a connecting seat (202) being arranged on the fixed seat (201), a limiting seat (203) being arranged on the connecting seat (202), and a limiting seat (203) being further arranged on the limiting seat (203). An expansion member (205) is provided, and two groups of symmetrically arranged expansion members (205) are combined to form a cylinder. A positioning column (208) is also provided at the bottom end of the limit seat (203). The limit seat (203) is installed in an arc-shaped cavity (207) provided in the expansion turntable (206) through the positioning column (208) provided at the bottom. A rotating assembly (300) is provided at the lower end of the expansion turntable (206). The rotating assembly (300) includes a motor main shaft (302) installed on a bottom plate (301).

2. The dry expansion mold for fluororubber heat shrinkable tube according to claim 1, characterized in that: A limit slot (210) is also provided at the bottom of the expansion rotary disk (206); the limit slot (210) has the same shape and size as the rotating tooth (303) provided at the output end of the motor main shaft (302), and the two are engaged and connected.

3. The dry expansion mold for fluororubber heat shrinkable tube according to claim 1, characterized in that: The expansion piece (205) is provided with a positioning hole, and the upper end of the limiting seat (203) is also provided with an adjustment cavity, and an adjustment bolt (209) is provided on the end side of the adjustment cavity. The expansion piece (205) is detachably mounted on the limiting seat (203) via the adjustment bolt (209).

4. The dry expansion mold for fluororubber heat shrinkable tube according to claim 1, characterized in that: The connection seat (202) and the limiting seat (203) are both provided with a positioning cavity (204), and the limiting seat (203) is detachably mounted on the connection seat (202) by means of positioning bolts.

5. The dry expansion mold for fluororubber heat shrinkable tube according to claim 1, characterized in that: The mold table (101) is also provided with a placement plate (102), and a plurality of placement cavities are distributed in an array on the placement plate (102).

6. The dry expansion mold for fluororubber heat shrinkable tube according to claim 1, characterized in that: Slide rails are also provided on both sides of the fixing seat (201), and the connecting seat (202) slides on the fixing seat (201) via the slide rails provided on the fixing seat (201).

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