Centering feeding mechanism and small heat shrink machine

Abstract

The utility model discloses a centering feeding mechanism, comprising: an outer shell, on which a feeding station and a centering station are formed; a rotating rod, which has two groups of rotating rods and is respectively arranged on two sides of the outer shell, and the rotating rod has opposite rotating ends and clamping ends, the rotating ends are rotatably mounted on the outer shell, and the clamping ends can be rotated from the loading station toward the centering station, wherein the clamping ends of the two groups of rotating rods respectively form a clamp for a first wiring harness and a second wiring harness; a centering limit assembly, which is arranged at the centering station and is used for limiting and centering heat shrink tubes sleeved on opposite ends of the first wiring harness and the second wiring harness; the utility model can solve the problem that when the heat shrink tube is manually docked at the end of the wiring harness, there will be inconsistent placement positions of the heat shrink tube, resulting in low consistency after the wiring harness is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrink machines, in particular to a centering feeding mechanism and a small heat shrink machine. Background Art

[0002] Heat shrink tubing is a commonly used surface protection material in cable or wire harness processing. It is pre-sleeved on the surface of the cable or wire harness at room temperature. After the cable or wire harness is prepared, its surface is evenly heated by a hot air gun or appropriate heating equipment. The heat shrink tubing can quickly shrink into a thin tube and cling to the surface of the object to which it is attached, thereby ensuring the insulation of the object and preventing corrosion in harsh environments such as salt spray, moisture, and mold.

[0003] In the production of automotive wiring harnesses, the terminal parts and docking parts of the wiring harnesses usually need to be covered with heat shrink tubing on the surface of the wire. By heating the heat shrink tubing, the heat shrink tubing shrinks and completely fits the surface of the wire. The wire harness is mostly heat-shrinked using a U-cavity heat shrink device. It is necessary to manually place the wire harness equipped with the heat shrink tubing in the U-cavity of the heat shrink device, and take out the product after the heat shrink tubing is completed. However, in the process of manually putting the heat shrink tubing on the end of the wire and then placing it in the heat shrink device, there will be inconsistency in the placement position of the heat shrink tubing, resulting in low consistency of the wiring harness after forming. Utility Model Content

[0004] The utility model aims to solve the above technical problem, that is, when the heat shrink tube is manually connected to the end of the wire harness, there will be inconsistency in the placement position of the heat shrink tube, resulting in low consistency of the wire harness after molding.

[0005] In a first aspect, the utility model provides a centering feeding mechanism, comprising:

[0006] An outer shell, wherein a loading station and a centering station are formed on the outer shell;

[0007] A rotating rod, wherein the rotating rod has two groups and is respectively disposed on both sides of the outer shell, the rotating rod has opposite rotating ends and clamping ends, the rotating ends are rotatably mounted on the outer shell, and the clamping ends can be rotated from the loading station toward the centering station, wherein the clamping ends of the two groups of rotating rods respectively clamp the first wire harness and the second wire harness;

[0008] A centering and limiting assembly is arranged at the centering station and is used for limiting and centering the heat shrink tubes sleeved on opposite ends of the first wiring harness and the second wiring harness.

[0009] In the preferred technical solution of the above-mentioned centering and feeding mechanism, the centering and limiting assembly includes at least a first lifting device and a second lifting device which are configured to be movable along a first direction, the top of the first lifting device is provided with a first centering piece which is adapted to the shape of the first wiring harness, and the top of the second lifting device is provided with a second centering piece which is adapted to the shape of the second wiring harness.

[0010] In the preferred technical solution of the above-mentioned centering feeding mechanism, the clamping end of the rotating rod is provided with a clamping structure to clamp or loosen the first wire harness or the second wire harness.

[0011] In the preferred technical solution of the above-mentioned centering feeding mechanism, the clamping structure is a clamping claw cylinder, or the clamping end forms a protrusion and a clamping cylinder, and the extended shaft end of the clamping cylinder is opposite to the protrusion.

[0012] In the preferred technical solution of the above-mentioned centering feeding mechanism, the rotating rod is driven to rotate by a first driving device arranged in the outer shell.

[0013] In the preferred technical solution of the above-mentioned centering feeding mechanism, the first driving device is one of a rotary cylinder and a servo motor, or is composed of a first cylinder and a second cylinder, wherein the first cylinder and the second cylinder are fixed to each other, and the extended shaft ends of the first cylinder and the second cylinder are arranged in opposite directions, the extended shaft end of the first cylinder is hinged on the outer shell, and the extended shaft end of the second cylinder is hinged on the rotating rod.

[0014] In the preferred technical solution of the above-mentioned centering feeding mechanism, the first lifting device and the second lifting device are driven by the second driving device to move toward or away from each other.

[0015] In the preferred technical solution of the above-mentioned centering feeding mechanism, the second driving device is composed of a driving motor, a driving pulley, a driven pulley and a belt; wherein the first lifting device and the second lifting device are located on the inner side of the belt.

[0016] In a second aspect, the utility model provides a small heat shrink machine, comprising the above-mentioned centering feeding mechanism.

[0017] In the preferred technical solution of the above-mentioned heat shrink machine, the small heat shrink machine includes a heat shrink machine body and a conveying mechanism, wherein the heat shrink machine body is formed with a heating cavity for heat shrinking the heat shrinkable tube, an air cooling area for cooling the heat-shrinking formed wire harness, and a blanking area connected to the air cooling area;

[0018] The conveying mechanism is arranged on the heat shrink machine body, and is used to receive the first wire harness, the second wire harness and the heat shrink tube that have been centered and conveyed by the centering feeding mechanism, and can convey the molded wire harness in the heating cavity toward the air cooling area and the blanking area.

[0019] The beneficial effect of the utility model is that by controlling the rotation of the rotating rod, the rotating rod can transport the heat shrink tube from the loading station to the centering station, which is convenient for the centering limit assembly to position the heat shrink tube. In this way, manual centering of the heat shrink tube can be avoided, which may cause the inconsistency of the molding position of the heat shrink tube on the first wiring harness and the second wiring harness, thereby ensuring the quality of the molded wiring harness after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The main view of the utility model Figure 1 ;

[0021] Figure 2 The main view of the utility model Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the centering feeding mechanism after removing the outer shell;

[0023] Figure 4 is a schematic structural diagram of a rotating rod and a first driving device;

[0024] Figure 5 It is a structural diagram of the centering feeding mechanism and the small heat shrink machine;

[0025] In the figure: outer shell 1, loading station 11, centering station 12, rotating rod 2, rotating end 21, clamping end 22, first wiring harness 31, second wiring harness 32, heat shrink tube 33, centering limit assembly 4, first jacking device 41, second jacking device 42, first centering piece 43, second centering piece 44, second driving device 45, clamping structure 5, first driving device 6, first cylinder 61, second cylinder 62, heat shrink machine body 7, heating cavity 71, air cooling area 72, blanking area 73, conveying mechanism 8. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0027] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figures 1 to 5 As shown, the centering and feeding mechanism of the utility model comprises: an outer shell 1, on which a feeding station 11 and a centering station 12 are formed; a rotating rod 2, which has two groups and is respectively arranged on both sides of the outer shell 1, and the rotating rod 2 has relative rotating ends 21 and clamping ends 22, the rotating ends 21 are rotatably mounted on the outer shell 1, and the clamping ends 22 can be rotated from the feeding station 11 toward the centering station 12, wherein the clamping ends 22 of the two groups of rotating rods 2 respectively form a clamp for the first wiring harness 31 and the second wiring harness 32; a centering limit assembly 4, which is arranged at the centering station 12, and is used for limiting and centering the heat shrink tube 33 which is sleeved on the opposite ends of the first wiring harness 31 and the second wiring harness 32.

[0030] See also Figure 2 , Figure 3 There are two groups of rotating rods 2, which are respectively located on both sides of the outer shell 1. The rotating ends 21 of each group of rotating rods 2 are rotatably installed on the side of the outer shell 1. The clamping ends 22 of one group of rotating rods 2 can form a clamp for the first wire harness 31, and the clamping ends 22 of the other group of rotating rods 2 can form a clamp for the second wire harness 32.

[0031] See also Figures 1 to 3 The centering limit assembly 4 is installed at the centering station 12 of the outer shell 1. The centering limit assembly 4 can center and limit the movable heat shrink tube 33 sleeved on the opposite ends of the first wiring harness 31 and the second wiring harness 32, so as to reduce the steps of manually adjusting the position of the heat shrink tube 33, and facilitate the heat shrink machine to quickly shrink the heat shrink tube 33 at the predetermined position on the opposite end of the first wiring harness 31 and the second wiring harness 32.

[0032] When the first wiring harness 31, the second wiring harness 32 and the heat shrink tube 33 are transported in a centering and limiting manner, the first wiring harness 31, the second wiring harness 32 and the heat shrink tube 33 are first installed in a predetermined position, so that the heat shrink tube 33 is sleeved on the opposite end of the first wiring harness 31 and the second wiring harness 32, and then the first wiring harness 31 and the second wiring harness 32 are clamped by the clamping ends 22 of the two sets of rotating rods 2 respectively, and then the two sets of rotating rods 2 are synchronously rotated clockwise, so that the clamping ends 22 of the two sets of rotating rods 2 are changed from a horizontal state to a vertical state. When the clamping ends 22 of the rotating rods 2 are relatively in a vertical state, the heat shrink tube 33 sleeved on the opposite end of the first wiring harness 31 and the second wiring harness 32 is located in the centering and limiting position group 32, and the heat shrink tube 33 is placed directly above the first wiring harness 31 and the second wiring harness 32. The heat shrink tube 33 is moved by the centering limit assembly 4 so that the heat shrink tube 33 is located in the middle of the opposite end of the first wiring harness 31 and the second wiring harness 32. Finally, the two sets of rotating rods 2 continue to rotate synchronously clockwise to send the aligned heat shrink tube 33, the first wiring harness 31 and the second wiring harness 32 into the heat shrink equipment. In this way, the heat shrink tube 33, the first wiring harness 31 and the second wiring harness 32 can be aligned, and at the same time, it can be avoided that the position of the heat shrink tube 33 is inconsistent due to manual centering of the heat shrink tube 33, thereby ensuring the quality of the formed wiring harness after processing.

[0033] In one or more embodiments, the centering limit assembly 4 includes at least a first lifting device 41 and a second lifting device 42 configured to be movable along a first direction, the top of the first lifting device 41 is provided with a first centering piece 43 adapted to the shape of the first wiring harness 31, and the top of the second lifting device 42 is provided with a second centering piece 44 adapted to the shape of the second wiring harness 32; the first lifting device 41 and the second lifting device 42 are driven by a second driving device 45 to move toward or away from each other; the second driving device 45 is composed of a driving motor, a driving pulley, a driven pulley and a belt; wherein the first lifting device 41 and the second lifting device 42 are located on the inner side of the belt.

[0034] It should be noted that the first lifting device 41 and the second lifting device 42 can be driving cylinders; the first centering piece 43 and the second centering piece 44 have the same structure, and a contoured groove matching the shape of the first wiring harness 31 is formed on the top of the first centering piece 43, and a contoured groove matching the shape of the second wiring harness 32 is formed on the top of the second centering piece 44.

[0035] See also Figure 1 The first direction is the direction perpendicular to the two rotating rods 2.

[0036] See also Figures 1 to 3, the first lifting device 41 and the second lifting device 42 move in the first direction through the slide rail; the second driving device 45 can be a driving cylinder, or a servo motor, a driving pulley, a driven pulley and a belt. When the second driving device 45 is a driving cylinder, the first lifting device 41 and the second lifting device 42 can be directly driven by the second driving device 45 to move toward or away from each other; when the second driving device 45 is a servo motor, a driving pulley, a driven pulley and a belt, the first lifting device 41 and the second lifting device 42 are located inside the belt, the first lifting device 41 is connected to one side of the belt, and the second lifting device 42 is connected to the other side of the belt. The servo motor controls the belt to move clockwise or counterclockwise through the driving pulley, so that the first lifting device 41 and the second lifting device 42 can move toward or away from each other.

[0037] When the heat shrink tube 33 is centered and limited, the first centering piece 43 is first controlled to rise by the first lifting device 41 so that the contoured groove of the first centering piece 43 contacts the first wiring harness 31. At the same time, the second centering piece 44 is controlled to rise by the second lifting device 42 so that the contoured groove of the second centering piece 44 contacts the second wiring harness 32. Afterwards, the first lifting device 41 and the second lifting device 42 are controlled by the second driving device 45 to move toward each other, thereby realizing that the first centering piece 43 and the second centering piece 44 respectively contact the two sides of the heat shrink tube 33, and forming a centering limit for the heat shrink tube 33. It has the characteristics of simple structure, convenient operation, and practicality.

[0038] In one or more embodiments, the clamping end 22 of the rotating rod 2 is configured with a clamping structure 5 to clamp or loosen the first wiring harness 31 or the second wiring harness 32; the clamping structure 5 is a clamping claw cylinder, or a protrusion and a clamping cylinder are formed for the clamping end 22, and the extended shaft end of the clamping cylinder is opposite to the protrusion.

[0039] See also Figure 3 , Figure 4 When the clamping structure 5 is a clamping claw cylinder disposed at the clamping end 22 of the rotating rod 2, the wire harness is clamped by the clamping claw cylinder, which has the characteristic of stable clamping effect.

[0040] See also Figure 4 When the clamping structure 5 is a protrusion formed by the clamping end 22 and a clamping cylinder installed at the clamping end 22; the protruding shaft end of the clamping cylinder is extended to approach the protrusion, so that the wiring harness is clamped between the protruding shaft end of the cylinder and the protrusion; in this way, the production cost can be reduced.

[0041] In one or more embodiments, the rotating rod 2 is driven to rotate by a first driving device 6 configured in the outer shell 1; the first driving device 6 is one of a rotary cylinder and a servo motor, or is composed of a first cylinder 61 and a second cylinder 62, wherein the first cylinder 61 and the second cylinder 62 are fixed to each other, and the extended shaft ends of the first cylinder 61 and the second cylinder 62 are set in opposite directions, the extended shaft end of the first cylinder 61 is hinged on the outer shell 1, and the extended shaft end of the second cylinder 62 is hinged on the rotating rod 2.

[0042] See also Figure 3 , Figure 4 The first driving device 6 can be a servo motor or a rotary cylinder. The extended shaft end of the servo motor or the rotary cylinder drives the rotating end 21 of the rotating rod 2 to rotate, so that the rotating rod 2 can rotate relative to the outer shell 1.

[0043] See also Figure 3 , Figure 4 The first driving device 6 can also be a combination of a first cylinder 61 and a second cylinder 62; by synchronously extending the extended shaft ends of the first cylinder 61 and the second cylinder 62, the rotating rod 2 can be rotated counterclockwise, so that the clamping end 22 of the rotating rod 2 moves from the centering station 12 to the loading station 11; by synchronously retracting the extended shaft ends of the first cylinder 61 and the second cylinder 62, the rotating rod 2 can be rotated clockwise, so that the clamping end 22 of the rotating rod 2 moves from the loading station 11 to the centering station 12.

[0044] In addition, see Figure 5 The utility model also provides a small heat shrink machine, including the above-mentioned centering feeding mechanism.

[0045] In one or more embodiments, the small heat shrink machine includes a heat shrink machine body 7 and a conveying mechanism 8, wherein the heat shrink machine body 7 is formed with a heating cavity 71 for heat shrinking the heat shrink tube 33, a wind cooling area 72 for cooling the heat-shrinking formed wire harness, and a blanking area 73 connected to the wind cooling area 72;

[0046] The conveying mechanism 8 is arranged on the heat shrink machine body 7, and is used to receive the first wire harness 31, the second wire harness 32 and the heat shrink tube 33 that have been centered and conveyed by the centering feeding mechanism, and can convey the formed wire harness in the heating cavity 71 toward the air cooling area 72 and the blanking area 73.

[0047] See also Figure 5When the heat shrink tube 33 is heat-shrunk at the opposite end of the first wire harness 31 and the second wire harness 32, the heat shrink tube 33 sleeved at the opposite end of the first wire harness 31 and the second wire harness 32 is firstly centered on the first wire harness 31 and the second wire harness 32 by the centering feeding mechanism, and then the first wire harness 31, the second wire harness 32 and the centered heat shrink tube 33 are transported to the heating cavity 71 by the centering feeding mechanism. The first wire harness 31, the second wire harness 32 and the heat shrink tube 33 in the heating cavity 71 are transported by the conveying mechanism 8. At the same time, the heating cavity 71 heat-shrunk the heat shrink tube 33 to form at the opposite end of the first wire harness 31 and the second wire harness 32. After the heat shrinkage is completed, the conveying mechanism 8 transports the molded wire harness to the air cooling area 72. The air cooling area 72 cools the heat shrink tube 33 part of the molded wire harness. After the cooling of the molded wire harness is completed, it falls to the dropping area 73 by its own gravity for collection by the staff.

[0048] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A centering feeding mechanism, characterized in that: include: An outer shell, wherein a loading station and a centering station are formed on the outer shell; A rotating rod, wherein the rotating rod has two groups and is respectively disposed on both sides of the outer shell, the rotating rod has opposite rotating ends and clamping ends, the rotating ends are rotatably mounted on the outer shell, and the clamping ends can be rotated from the loading station toward the centering station, wherein the clamping ends of the two groups of rotating rods respectively clamp the first wire harness and the second wire harness; A centering and limiting assembly is arranged at the centering station and is used for limiting and centering the heat shrink tubes sleeved on opposite ends of the first wiring harness and the second wiring harness.

2. The centering feeding mechanism according to claim 1 is characterized in that: The centering and limiting assembly includes at least a first lifting device and a second lifting device configured to be movable along a first direction, the top of the first lifting device is provided with a first centering piece adapted to the first wiring harness shape, and the top of the second lifting device is provided with a second centering piece adapted to the second wiring harness shape.

3. The centering feeding mechanism according to claim 1 is characterized in that: The clamping end of the rotating rod is configured with a clamping structure to clamp or loosen the first wire harness or the second wire harness.

4. The centering feeding mechanism according to claim 3 is characterized in that: The clamping structure is a clamping claw cylinder, or the clamping end forms a protrusion and a clamping cylinder, and the extended shaft end of the clamping cylinder faces the protrusion.

5. The centering feeding mechanism according to claim 1 or 3, characterized in that: The rotating rod is driven to rotate by a first driving device disposed in the outer shell.

6. The centering feeding mechanism according to claim 5, characterized in that: The first driving device is one of a rotary cylinder and a servo motor, or is composed of a first cylinder and a second cylinder, wherein the first cylinder and the second cylinder are fixed to each other, the extended shaft ends of the first cylinder and the second cylinder are arranged in opposite directions, the extended shaft end of the first cylinder is hinged on the outer shell, and the extended shaft end of the second cylinder is hinged on the rotating rod.

7. The centering feeding mechanism according to claim 2 is characterized in that: The first lifting device and the second lifting device are driven by the second driving device to move toward or away from each other.

8. The centering feeding mechanism according to claim 7 is characterized in that: The second driving device is composed of a driving motor, a driving pulley, a driven pulley and a belt; wherein the first lifting device and the second lifting device are located on the inner side of the belt.

9. A small heat shrink machine, characterized in that: It comprises the centering and feeding mechanism described in any one of claims 1-8.

10. The small heat shrink machine according to claim 9, characterized in that: include: A heat shrink machine body and a conveying mechanism, wherein the heat shrink machine body is formed with a heating cavity for heat shrinking the heat shrinkable tube, an air cooling area for cooling the formed wire harness after heat shrinkage, and a blanking area connected to the air cooling area; The conveying mechanism is arranged on the heat shrink machine body, and is used to receive the first wire harness, the second wire harness and the heat shrink tube that have been centered and conveyed by the centering feeding mechanism, and can convey the molded wire harness in the heating cavity toward the air cooling area and the blanking area.

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