Flat heat-shrinking machine for heat-shrinkable tube

Abstract

The utility model discloses a kind of heat shrink tube flat heat shrink machines, relate to heat shrink tube processing technical field.The heat shrink tube flat heat shrink machine, including bottom plate and pre-pressing mechanism, the top of bottom plate is fixedly installed with connecting casing, the inside of connecting casing is provided with two groups of roll wheels;Pre-pressing mechanism is set on connecting casing, pre-pressing mechanism is used to drive two groups of roll wheels to pre-press heat shrink tube, pre-pressing mechanism includes motor, rotating rod, belt pulley and belt, the rear side of connecting casing is fixedly installed with motor.By the cooperation of motor, rotating rod, belt pulley, belt and roll wheel, pre-pressing mechanism can drive roll wheel to pre-press flat heat shrink tube, heat shrink tube is pressed into approximate ellipse, air in heat shrink tube is discharged, avoid air in pipe expansion by heat and cannot be discharged in time, possibly bubble is formed, cause the part where bubble is located cannot form effective sealing condition, improve the finished product quality of heat shrink tube.

Description

Technical Field

[0001] This utility model relates to the field of heat shrink tubing processing technology, and in particular to a flat heat shrink tubing heat shrinking machine. Background Technology

[0002] Chinese document CN213593607U discloses a flat heat shrink tubing machine, including a bottom mounting base. Two parallel rectangular mounting tubes are vertically welded to the top left of the bottom mounting base. A single rectangular fixing seat is fixedly mounted on the front top of the two rectangular mounting tubes. A rectangular mounting protrusion is located at the center of the front top of the rectangular fixing seat. A pressing cylinder is fixedly mounted at the bottom of the rectangular mounting protrusion. A horizontally positioned upper heating plate is welded to the output shaft of the pressing cylinder. The right side of the upper heating plate contacts a vertical guide plate welded and fixed to the top of the bottom mounting base, and the left side of the vertical guide plate contacts a lower heating plate located below the upper heating plate. This invention provides a device integrating temperature setting, time control, and automatic pressing. After the product to be processed is placed in, simply pressing a foot switch automatically completes the process, greatly improving production efficiency and product stability.

[0003] The aforementioned heat shrink tubing flat heat shrinking machine directly heat-presses the heat shrink tubing. Due to the large internal space and high air content of the heat shrink tubing, during direct heat pressing, the outer heat shrink tubing rapidly shrinks due to heat and is pressed tightly by the mold. The internal air expands due to heat and cannot be discharged in time, which may form air bubbles. The area where the air bubbles are located cannot form an effective seal, and moisture or dust can enter along this path, reducing the quality of the finished heat shrink tubing. Utility Model Content

[0004] The purpose of this invention is to provide a flat heat shrink tubing machine that can solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat shrink tubing flattening heat shrinking machine, comprising:

[0006] The base plate has a connecting housing fixedly installed on its top, and the connecting housing has two sets of rollers inside.

[0007] The pre-pressing mechanism is installed on the connecting housing and is used to drive two sets of rollers to pre-press the heat shrink tubing.

[0008] Preferably, the pre-flattening mechanism includes a motor, a rotating rod, a pulley, and a belt. The motor is fixedly installed on the rear side of the connecting housing. Two sets of rotating rods are rotatably installed inside the connecting housing. The output shaft of the motor extends into the interior of the connecting housing and is fixedly connected to one set of rotating rods. One end of each set of rotating rods extends to the front side of the connecting housing and is fixedly installed with a pulley. A belt is sleeved between the two sets of pulleys, and the belts are arranged in a crisscross pattern.

[0009] Preferably, the outer walls of both sets of rotating rods are fixedly connected to the rollers.

[0010] Preferably, an inlet pipe is fixedly installed on one side of the connecting housing, and a discharge pipe is fixedly installed on the other side of the connecting housing. Cleaning cotton is fixedly installed on the inner wall of the discharge pipe, and circular openings are provided on both sides of the connecting housing for heat shrink tubing to pass through.

[0011] Preferably, two sets of connecting blocks are fixedly installed on the outer wall of the discharge pipe. Through holes are provided on the other side of the connecting housing and on the two sets of connecting blocks. Bolts are slidably installed on the other side of the two sets of connecting blocks. One end of each set of bolts extends into the interior of the connecting housing through the through holes. Two sets of nuts are threaded onto the outer wall of each set of bolts.

[0012] Preferably, a mounting frame is fixedly installed on the top of the base plate, a hydraulic rod is fixedly installed on the top of the mounting frame, the free end of the hydraulic rod extends into the interior of the mounting frame and is fixedly installed with a hot press upper mold, and a hot press lower mold is fixedly installed on the top of the base plate, with the hot press upper mold and the hot press lower mold being set accordingly.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The heat shrink tubing flattening heat shrinking machine, through the cooperation of motor, rotating rod, pulley, belt and roller, the pre-flattening mechanism can drive the roller to pre-flatten the heat shrink tubing, press the heat shrink tubing into an approximately elliptical shape, and expel the air inside the heat shrink tubing. This avoids the air inside the tubing from expanding due to heat and not being able to be expelled in time, which may form bubbles and cause the area where the bubbles are located to not form an effective seal, thus improving the finished quality of the heat shrink tubing.

[0015] (2) The heat shrink tubing flat heat shrinking machine, through the combined use of the discharge pipe and the cleaning cotton, the cleaning cotton can clean the outer surface of the heat shrink tubing, and avoid the dust attached to it under high temperature and high pressure from being sintered and adhering to the pressing surface of the hot pressing mold, which would cause the hot pressing mold to fail to ensure that the heat is transferred evenly and efficiently to the heat shrink tubing, thus improving the finished product quality of the heat shrink tubing. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a front perspective view of the present invention;

[0018] Figure 2 This is a rear-view perspective view of the present invention;

[0019] Figure 3 This is a perspective view of the connecting housing of this utility model, taken from a front sectional view.

[0020] Reference numerals: 1. Base plate; 2. Connecting housing; 3. Pre-pressing mechanism; 301. Motor; 302. Rotating rod; 303. Pulley; 304. Belt; 4. Roller; 5. Feed pipe; 6. Discharge pipe; 7. Cleaning cotton; 8. Connecting block; 9. Bolt; 10. Nut; 11. Mounting bracket; 12. Hydraulic rod; 13. Upper hot press mold; 14. Lower hot press mold. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a heat shrink tubing flattening heat shrinking machine, including a base plate 1 and a pre-pressing mechanism 3. A connecting housing 2 is fixedly installed on the top of the base plate 1, and two sets of rollers 4 are arranged inside the connecting housing 2. The pre-pressing mechanism 3 is arranged on the connecting housing 2 and is used to drive the two sets of rollers 4 to pre-press the heat shrink tubing.

[0023] The pre-flattening mechanism 3 includes a motor 301, a rotating rod 302, a pulley 303, and a belt 304. The motor 301 is fixedly installed on the rear side of the connecting housing 2. Two sets of rotating rods 302 are rotatably installed inside the connecting housing 2. The output shaft of the motor 301 extends into the interior of the connecting housing 2 and is fixedly connected to one set of rotating rods 302. One end of each set of rotating rods 302 extends to the front side of the connecting housing 2 and is fixedly installed with a pulley 303. A belt 304 is sleeved between the two sets of pulleys 303. The belts 304 are arranged in a cross pattern. The pre-flattening mechanism 3 can drive the roller 4 to pre-flatten the heat shrink tubing, pressing the heat shrink tubing into an approximately elliptical shape, expelling air from the heat shrink tubing, and preventing air from expanding due to heat and failing to be expelled in time, which may form air bubbles and cause the area where the air bubbles are located to fail to form an effective seal, thus improving the finished quality of the heat shrink tubing.

[0024] The outer walls of both sets of rotating rods 302 are fixedly connected to the rollers 4.

[0025] A feed pipe 5 is fixedly installed on one side of the connecting housing 2, and a discharge pipe 6 is fixedly installed on the other side of the connecting housing 2. A cleaning cotton 7 is fixedly installed on the inner wall of the discharge pipe 6. Both sides of the connecting housing 2 are provided with circular openings for the heat shrink tubing to pass through. The cleaning cotton 7 can clean the outer surface of the heat shrink tubing, preventing the dust adhering to it under high temperature and high pressure from sintering and adhering to the pressing surface of the hot pressing mold 13, which would prevent the hot pressing mold 13 from ensuring that the heat is transferred evenly and efficiently to the heat shrink tubing, thus improving the finished product quality of the heat shrink tubing.

[0026] Two sets of connecting blocks 8 are fixedly installed on the outer wall of the discharge pipe 6. Through holes are opened on the other side of the connecting housing 2 and on the two sets of connecting blocks 8. Bolts 9 are slidably installed on the other side of the two sets of connecting blocks 8. One end of the two sets of bolts 9 extends into the interior of the connecting housing 2 through the through holes. Two sets of nuts 10 are threadedly connected to the outer wall of the two sets of bolts 9.

[0027] A mounting bracket 11 is fixedly installed on the top of the base plate 1. A hydraulic rod 12 is fixedly installed on the top of the mounting bracket 11. The free end of the hydraulic rod 12 extends into the interior of the mounting bracket 11 and is fixedly installed with a hot press upper mold 13. A hot press lower mold 14 is fixedly installed on the top of the base plate 1. The hot press upper mold 13 and the hot press lower mold 14 are set accordingly.

[0028] Working principle: When work is required, one end of the heat shrink tubing is inserted into the interior of the connecting housing 2 through the feed pipe 5. The motor 301 is started, and through the action of the belt 304 and pulley 303, the output shaft of the motor 301 drives the two sets of rotating rods 302 to rotate, which in turn drives the roller 4 to rotate, which can pre-flatten the heat shrink tubing passing through it. After flattening, the heat shrink tubing moves to the outside of the connecting housing 2 through the cleaning cotton 7. The cleaning cotton 7 can clean the dust or oil stains that may be attached to the outer wall of the heat shrink tubing. The pre-pressed heat shrink tubing, which is approximately elliptical, is placed on the lower hot pressing mold 14. The hydraulic rod 12 is started, and the hydraulic rod 12 drives the upper hot pressing mold 13 to move downward. Through the cooperation of the upper hot pressing mold 13 and the lower hot pressing mold 14, the heat shrink tubing can be hot-pressed and formed.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A flat heat shrink tubing machine, characterized in that, include: The base plate (1) has a connecting housing (2) fixedly installed on its top. The connecting housing (2) has two sets of rollers (4) inside. The pre-pressing mechanism (3) is set on the connecting housing (2). The pre-pressing mechanism (3) is used to drive two sets of rollers (4) to pre-press the heat shrink tubing. The pre-flattening mechanism (3) includes a motor (301), a rotating rod (302), a pulley (303), and a belt (304). The motor (301) is fixedly installed on the rear side of the connecting housing (2). Two sets of rotating rods (302) are rotatably installed inside the connecting housing (2). The output shaft of the motor (301) extends into the interior of the connecting housing (2) and is fixedly connected to one set of rotating rods (302). One end of each set of rotating rods (302) extends to the front side of the connecting housing (2) and is fixedly installed with a pulley (303). A belt (304) is sleeved between the two sets of pulleys (303) and the belts (304) are arranged in a cross pattern.

2. The heat shrink tubing flattening heat shrinking machine according to claim 1, characterized in that: The outer walls of both sets of rotating rods (302) are fixedly connected to the rollers (4).

3. A flat heat shrink tubing heat shrinking machine according to claim 2, characterized in that: A feed pipe (5) is fixedly installed on one side of the connecting housing (2), and a discharge pipe (6) is fixedly installed on the other side of the connecting housing (2). A cleaning cotton (7) is fixedly installed on the inner wall of the discharge pipe (6). Circular openings for heat shrink tubing to pass through are provided on both sides of the connecting housing (2).

4. A flat heat shrink tubing heat shrinking machine according to claim 3, characterized in that: Two sets of connecting blocks (8) are fixedly installed on the outer wall of the discharge pipe (6). Through holes are opened on the other side of the connecting housing (2) and on the two sets of connecting blocks (8). Bolts (9) are slidably installed on the other side of the two sets of connecting blocks (8). One end of the two sets of bolts (9) extends into the interior of the connecting housing (2) through the through holes. Two sets of nuts (10) are threadedly connected to the outer wall of the two sets of bolts (9).

5. A flat heat shrink tubing heat shrinking machine according to claim 4, characterized in that: A mounting bracket (11) is fixedly installed on the top of the base plate (1), and a hydraulic rod (12) is fixedly installed on the top of the mounting bracket (11). The free end of the hydraulic rod (12) extends into the interior of the mounting bracket (11) and is fixedly installed with a hot press upper mold (13). A hot press lower mold (14) is fixedly installed on the top of the base plate (1). The hot press upper mold (13) and the hot press lower mold (14) are set accordingly.

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