Heat shrink tubing production equipment

Abstract

The present invention discloses a heat shrink tubing production device, comprising a terminal feeding mechanism, an outer tube feeding mechanism, a clamping mechanism, an assembly mechanism, a forming mechanism, and a conveying mechanism. By separately providing the terminal feeding mechanism, the outer tube feeding mechanism, the clamping mechanism, the assembly mechanism, the forming mechanism, and the conveying mechanism, the heat shrink tubing production process is fully automated, and the assembly process is precisely controllable.

Description

Technical Field

[0001] The invention relates to the field of heat shrink tube production and processing, and in particular to a heat shrink tube production device. Background Art

[0002] Currently, waterproof heat-shrinkable solder terminals are produced on the market by using semi-automatic production equipment to assemble the tin ring, rubber ring, and outer tube through multiple steps. The assembled semi-finished product is then placed in a semi-automatic shrinking machine for shrinking. This method suffers from low efficiency and large equipment footprint, resulting in high production costs.

[0003] Therefore, how to provide a fully automatic heat shrink tube production device has become a technical problem that urgently needs to be solved in the industry. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a heat shrink tube production device, which aims to provide a solution to the problem that the existing solution cannot achieve full automation of heat shrink tube processing and production.

[0005] Technical solution: A heat shrink tube production device, comprising:

[0006] Two terminal feeding mechanisms arranged opposite to each other are used to respectively feed the first terminal and the second terminal;

[0007] An outer tube feeding mechanism for conveying outer tubes;

[0008] A clamping mechanism provided between the two terminal feeding mechanisms includes a movable clamping portion, the clamping portion including an outer clamping portion and an inner clamping portion arranged in a nested manner, the outer clamping portion sequentially provided with a first terminal accommodating cavity and a second terminal accommodating cavity for accommodating a first terminal and a second terminal, the outer clamping portion achieving synchronous clamping and release of the first terminal and the second terminal through a second drive assembly, the inner clamping portion being provided between the first terminal accommodating cavity and the second terminal accommodating cavity, and having an outer tube accommodating cavity provided therein, the inner clamping portion achieving clamping and release of the outer tube through a third drive assembly;

[0009] An assembly mechanism includes two ejector pins arranged opposite to each other, for assembling the terminal on the clamping portion and pushing it into the outer tube on the clamping portion;

[0010] The forming mechanism is used to blow out hot air to shrink the outer tube and wrap the terminal tightly;

[0011] A conveying mechanism, used to convey the assembled workpiece to the forming mechanism;

[0012] The clamping mechanism also includes a first driving component, which drives the clamping part to move between a first position and a second position. When the clamping part is in the first position, the terminal feeding mechanism and the outer tube feeding mechanism feed the clamping part. When the clamping part is in the second position, the assembly mechanism assembles the terminal into the outer tube held by the clamping part.

[0013] Furthermore, a third terminal accommodating cavity for accommodating a third terminal is provided in the outer clamping portion, and the third terminal accommodating cavity is provided between the first terminal accommodating cavity and the outer tube accommodating cavity. The outer clamping portion realizes synchronous clamping and release of the third terminal through a second drive assembly.

[0014] Furthermore, the outer clamping portion is provided with a terminal opening communicating with the third terminal accommodating cavity, and the third terminal enters the third terminal accommodating cavity through the terminal opening.

[0015] Furthermore, the outer tube feeding mechanism includes an outer tube feeding channel, and a robot for grabbing the outer tube into the outer tube accommodating cavity is provided above the outer tube feeding channel.

[0016] Furthermore, a temporary storage portion for accommodating the third terminal is provided on one side of the top end of the outer tube feed channel, and the temporary storage portion is driven and connected to a seventh drive component for pushing the temporary storage portion toward the outer tube feed channel, and the manipulator is configured to simultaneously grasp / release the outer tube and the third terminal.

[0017] Furthermore, the outer tube feeding mechanism further includes an outer tube vibration feeding tray, which is connected to the outer tube feeding channel and is used to supply outer tubes to the outer tube feeding channel.

[0018] Furthermore, a third terminal vibration feeding tray is provided on one side of the temporary storage portion, a third terminal feeding channel is provided at the end of the third terminal vibration feeding tray, the end of the third terminal feeding channel is provided with a downward curved arc surface and is provided above the temporary storage portion, and is used to drive the third terminal to fall into the temporary storage portion.

[0019] Furthermore, the first driving assembly includes a rotating arm and a power assembly for driving the rotating arm to rotate, and the clamping portion is detachably connected to the rotating arm.

[0020] Furthermore, the power assembly is drivingly connected to the middle portion of the rotating arm, and the number of the clamping parts is at least two, which are respectively provided at both ends of the rotating arm.

[0021] Furthermore, the terminal feeding mechanism includes:

[0022] A feeding channel for conveying terminal blanks, with feeding wheel assemblies provided on both sides of the feeding channel for driving the terminal blanks forward or backward;

[0023] A cutting assembly is provided above the feeding channel and is used for cutting the terminal blank;

[0024] An alignment component is provided at the end of the feeding channel and can be pushed toward the clamping portion to assist the first terminal / the second terminal to enter the first terminal accommodating cavity / the second terminal accommodating cavity.

[0025] Furthermore, the conveying mechanism includes a turntable that can rotate around its own axis, and the turntable includes two turntables that are arranged relatively to each other and move synchronously. The turntable is provided with several stations for accommodating assembled workpieces. When one of the stations moves to the clamping portion located in the second position, the station is set as a receiving station for receiving the assembled workpiece, and the assembly mechanism is arranged next to the receiving station.

[0026] Furthermore, the assembly mechanism includes two ejectors and a fourth drive assembly that drives the two ejectors to perform linear reciprocating motion in opposite directions. The two ejectors are arranged on both sides of the receiving station, respectively corresponding to the two ends of the clamping part when it is in the second position.

[0027] Furthermore, each of the workstations includes a first base and a second base respectively provided on the two turntables and arranged correspondingly, the first base is provided with a first rotating shaft that can extend toward the second base, and the second base is provided with a second rotating shaft that can extend toward the first base. When the workstation moves to the receiving station, the second rotating shaft and the first rotating shaft are respectively ejected by the ejector and the first terminal, the second terminal, and the third terminal are inserted into the outer tube.

[0028] Furthermore, at least one of the base rotating shaft and the second rotating shaft of at least one workstation is drivingly connected to a fifth driving assembly, and the fifth driving assembly drives the first rotating shaft and / or the second rotating shaft to rotate.

[0029] Furthermore, the station before the receiving station is set as an escape station, and reset mechanisms for respectively resetting the first rotating shaft and the second rotating shaft are provided on both sides of the escape station.

[0030] Furthermore, a material receiving mechanism for grabbing the formed workpiece and moving it to an external collector is provided above the disengaging station. When the material receiving mechanism grabs the formed workpiece, a reset mechanism drives the first rotating shaft and the second rotating shaft to reset.

[0031] Furthermore, the forming mechanism includes a heating block and a heating coil arranged outside the heating block. An air flow channel is provided inside the heating block. An air outlet is provided at one end of the air flow channel and an air inlet is provided at the other end. The air outlet is provided corresponding to the work station, and the air inlet is connected to an external air supply mechanism.

[0032] Beneficial effects: The heat shrink tube production device of the present invention realizes the full automation of heat shrink tube processing and production by separately arranging a terminal feeding mechanism, an outer tube feeding mechanism, a clamping mechanism, an assembly mechanism, a molding mechanism and a conveying mechanism, and the assembly process is precisely controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Attachment Figure 1 This is a schematic diagram of the cross-sectional structure of a workpiece produced by the heat shrink tube production device of the present invention;

[0034] Attachment Figure 2 A schematic diagram of the three-dimensional structure of an embodiment of a heat shrink tube production device of the present invention;

[0035] Attachment Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the clamping mechanism of the heat shrink tube production device shown;

[0036] Attachment Figure 4 for Figure 3 A partially cutaway perspective structural diagram of a clamping portion of the clamping mechanism shown;

[0037] Attachment Figure 5 for Figure 2 A schematic diagram of the three-dimensional structure of the conveying mechanism portion of the heat shrink tube production device shown;

[0038] Attachment Figure 6 for Figure 2 A schematic diagram of the three-dimensional structure of the clamping mechanism and the conveying mechanism of the heat shrink tube production device in the assembled state;

[0039] Attachment Figure 7 for Figure 2 A schematic diagram of the three-dimensional structure of the terminal feeding mechanism of the heat shrink tubing production device shown;

[0040] Attachment Figure 8 for Figure 7 A schematic cross-sectional view of the terminal feeding mechanism shown;

[0041] Attachment Figure 9 for Figure 2 A schematic diagram of the three-dimensional structure of the clamping mechanism and the terminal feeding mechanism of the heat shrink tube production device in the feeding and clamping state shown;

[0042] Attachment Figure 10 for Figure 2 A schematic diagram of the three-dimensional structure of the outer tube feeding mechanism of the heat shrink tube production device shown;

[0043] Attachment Figure 11 for Figure 2 The three-dimensional structural diagram of the forming mechanism part of the heat shrink tube production device shown;

[0044] Attachment Figure 12 for Figure 11 A schematic cross-sectional view of the forming mechanism shown;

[0045] Attachment Figure 13 for Figure 2 A schematic diagram of the three-dimensional structure of the heat shrink tube production device from another angle is shown. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] It should be noted that the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] The workpiece obtained by the heat shrink tube production device of the present invention is shown in FIG. Figure 1 As shown, the terminal block includes a first terminal 101, a second terminal 102, a third terminal 103, and an outer tube 100 sleeved over the first terminal 101, the second terminal 102, and the third terminal 103. In this embodiment, the first terminal 101 and the second terminal 102 are rubber ring terminals, and the third terminal 103 is a tin ring terminal. However, it should be noted that this does not constitute a limitation of the present invention.

[0049] See also Figures 2 to 13 An embodiment of a heat shrink tubing production apparatus according to the present invention is shown, comprising: a terminal feeding mechanism 1, an outer tube feeding mechanism 2, a clamping mechanism 3, an assembly mechanism 4, a molding mechanism 5, and a conveying mechanism 6. Two terminal feeding mechanisms 1 are arranged opposite each other, respectively conveying a first terminal and a second terminal to the clamping mechanism 3. The outer tube feeding mechanism 2 conveys the outer tube to the clamping mechanism 3.

[0050] The clamping mechanism 3 is arranged between the two terminal feeding mechanisms 1, and includes a movable clamping part 32, the clamping part 32 includes an outer clamping part 321 and an inner clamping part 322 nested in the outer clamping part 321, the outer clamping part 321 is provided with a first terminal accommodating cavity 3211 and a second terminal accommodating cavity 3212 for accommodating the first terminal and the second terminal respectively, the outer clamping part 321 realizes synchronous clamping and release of the first terminal and the second terminal through the second driving component 323, the inner clamping part 322 is arranged between the first terminal accommodating cavity 3211 and the second terminal accommodating cavity 3212, and an outer tube accommodating cavity 3221 is provided inside the inner clamping part 322, and the inner clamping part 322 realizes clamping and release of the outer tube through the third driving component 324.

[0051] The assembly mechanism 4 includes two oppositely disposed ejector pins 41 for inserting the terminal assembly on the clamping portion 32 into the outer tube on the clamping portion 32. The forming mechanism 5 is used to blow hot air to shrink the outer tube to tightly wrap the terminal, and the conveying mechanism 6 is used to convey the assembled workpiece to the forming mechanism 5.

[0052] The clamping mechanism 3 also includes a first drive assembly 31, which is connected to the clamping portion 32 and is used to drive the clamping portion 32 to move between a first position and a second position. When the clamping portion 32 is in the first position, the terminal feeding mechanism 1 and the outer tube feeding mechanism 2 feed the clamping portion 32. When the clamping portion 32 is in the second position, the assembly mechanism 4 assembles the terminal into the outer tube held by the clamping portion 32. In this embodiment, the first position and the second position are located on either side of the first drive assembly 31 and are horizontal.

[0053] In the working state, the outer tube feeding mechanism 2 and the terminal feeding mechanism 1 respectively feed the clamping mechanism 3. When the clamping portion 32 is in the first position, the first terminal and the second terminal respectively enter the first terminal accommodating cavity 3211 and the second terminal accommodating cavity 3212, and the outer tube enters the outer tube accommodating cavity 3221, thereby forming a clamping for three parts at the same time. The clamping portion 32 is then driven to the second position by the first driving assembly 31. The assembly mechanism 4 then uses the ejector pin 41 to insert the first terminal and the second terminal into the outer tube. The clamping portion 32 releases the inserted workpiece, and the conveying mechanism 6 then conveys the workpiece to the forming mechanism 5 for forming. This embodiment realizes the full automation of the heat shrink tubing production process by separately providing the terminal feeding mechanism 1, the outer tube feeding mechanism 2, the clamping mechanism 3, the assembly mechanism 4, the forming mechanism 5, and the conveying mechanism 6. The assembly process is precisely controllable.

[0054] The outer clamping portion 321 further includes a third terminal accommodating cavity 3213 for accommodating a third terminal. The third terminal accommodating cavity 3213 is located between the first terminal accommodating cavity 3211 and the outer tube accommodating cavity 3221. The outer clamping portion 321 synchronously clamps and releases the third terminal via a second drive assembly 323. This allows three terminals to be simultaneously threaded onto the same clamping portion 32, significantly improving production efficiency compared to conventional solutions.

[0055] Specifically, a terminal opening 3214 is provided at the top of the outer clamping portion 321, communicating with the third terminal accommodating cavity 3213. The terminal opening 3214 is arranged vertically upward, and the third terminal enters the third terminal accommodating cavity 3213 through the terminal opening 3214. This changes the input of the various parts from horizontal to horizontal plus vertical, allowing multiple parts to be clamped and assembled simultaneously, greatly improving production efficiency.

[0056] In this embodiment, the outer tube feeding mechanism 2 includes an outer tube feeding channel 21, above which is located a manipulator 22 for grasping outer tubes and placing them in the outer tube accommodating cavity 3221. A pneumatic cylinder assembly 24 is preferably used to drive the manipulator 22 vertically and horizontally, providing a faster response and greater safety and reliability. Using the manipulator 22 to grasp and place outer tubes into the outer tube accommodating cavity 3221 conserves space and can be performed simultaneously with terminal feeding, thereby improving production efficiency.

[0057] As a further optimization of this embodiment, a temporary storage portion 25 for accommodating the third terminal is provided on one side of the top end of the outer tube feed channel 21. The temporary storage portion 25 is driven and connected to a seventh drive assembly 26 for pushing the temporary storage portion 25 toward the outer tube feed channel 21. The manipulator 22 is configured to simultaneously grasp / release the outer tube and the third terminal. Specifically, the manipulator 22 is provided with an outer tube clamp for clamping the outer tube and a terminal clamp for clamping the third terminal. Cylinder clamping or vacuum adsorption can be used. The present invention does not specifically limit the clamping method. By arranging the manipulator 22 to grasp / release the outer tube and the third terminal at the same time, the outer tube and the third terminal can be simultaneously loaded into the clamping mechanism 3, thereby improving production efficiency.

[0058] As a further optimization of this embodiment, the outer tube feeding mechanism 2 further includes an outer tube vibrating feeding tray 23 , which is connected to the outer tube feeding channel 21 and is used to supply outer tubes to the outer tube feeding channel 21 .

[0059] A third terminal vibrating feed tray 27 is further provided on one side of the temporary storage portion 25. A third terminal feeding channel 28 is provided at the end of the third terminal vibrating feed tray 27. The third terminal feeding channel 28 has a downwardly curved surface at its end and is located above the temporary storage portion 25 to drive the third terminal to fall into the temporary storage portion 25. Gravity is used to cause the third terminal to fall into the temporary storage portion 25, reducing the number of power output components required, thereby increasing energy conservation and environmental protection.

[0060] In this embodiment, the first drive assembly 31 includes a rotating arm 311 and a power assembly that drives the rotating arm 311. The clamping portion 32 is detachably connected to the rotating arm 311. This allows for modular assembly of the clamping portion 32. Production personnel can select different clamping portions 32 based on the heat shrink tubing to be processed, thereby enabling rapid switching between processing types and expanding the processing application scenarios of the equipment.

[0061] The power assembly is connected to the middle portion of the rotating arm 311, and the two clamping parts 32 are provided at both ends of the rotating arm 311. This allows the clamping parts 32 to quickly switch between the first position and the second position. Preferably, the power assembly adopts a rotary cylinder, which has the characteristics of fast response and high safety performance.

[0062] As a further optimization of this embodiment, the power assembly drives and connects the middle part of the rotating arm 311, and the number of the clamping parts 32 can be increased or decreased as needed, simply by increasing or decreasing the number of the rotating arms 311 accordingly.

[0063] The terminal feeding mechanism 1 includes: a feeding channel 13, a cutting assembly 12 and an alignment assembly 11. The feeding channel 13 is used to convey the terminal blank, specifically, the terminal blank is a long tube. Feeding wheel assemblies 131 are provided on both sides of the feeding channel 13 to drive the terminal blank forward or backward, and the feeding wheels rotate towards each other to drive the terminal blank to be conveyed or retreated. The cutting assembly 12 is arranged above the feeding channel 13 and is used to cut the terminal blank. Specifically, the cutting assembly 12 includes a blade that can be moved downward, and the terminal blank is cut by the movement of the blade. The alignment assembly 11 is arranged at the end of the feeding channel 13 and can be pushed toward the clamping portion 32 to assist the first terminal / second terminal to enter the first terminal accommodating cavity 3211 / second terminal accommodating cavity 3212. Specifically, the alignment assembly 11 includes a copper tube 111 connected to the feed channel 13. The copper tube 111 is provided with a gap corresponding to the blade and used to accommodate the blade passing through. The copper tube 111 is driven by a cylinder 112 to reciprocate along the axis of the copper tube 111. When in working state, the feeding wheel assembly 131 drives the terminal blank to feed. When the predetermined terminal length is reached, the blade in the cutting assembly 12 moves through the gap on the copper tube 111 to cut the terminal blank and return to the initial position. The feeding wheel assembly 131 continues to transport the terminal blank. The copper tube 111 is pushed toward the clamping part 32 and aligned with the first terminal accommodating cavity 3211 or the second terminal accommodating cavity 3212 on the outer clamping part 321. The feeding wheel pushes the terminal into the first terminal accommodating cavity 3211 or the second terminal accommodating cavity 3212 to complete the terminal feeding work, so that the cylinder 112 drives the copper tube 111 to return to the initial position. At the same time, the feeding wheel assembly 131 reverses, driving the terminal blank to return to a position at the predetermined terminal length away from the initial position and enters the next cycle.

[0064] Specifically, the conveying mechanism 6 includes a turntable 60 that can rotate about its own axis. The turntable 60 includes two turntables 60 that are arranged relative to each other and move synchronously. The turntable 60 is provided with a number of workstations for accommodating assembled workpieces. When one of the workstations moves to the clamping portion 32 in the second position, it is configured as a receiving station for receiving assembled workpieces. The assembly mechanism 4 is located adjacent to the receiving station. Compared to the linear conveying mechanism 6, the provision of the turntable 60 can significantly reduce the overall device footprint and reduce production and processing costs. At the same time, by setting up receiving stations, the workstations on the turntable 60 are organized and categorized, which can improve management efficiency.

[0065] In this embodiment, the assembly mechanism 4 includes two ejector pins 41 and a fourth drive assembly 42 that drives the two ejector pins 41 to perform linear reciprocating motion in opposing directions. Preferably, the fourth drive assembly 42 is a pneumatic cylinder. The two ejector pins 41 are positioned on either side of the receiving station, corresponding to the ends of the clamping portion 32 when in the second position. The alignment of the ejector pins 41 with the clamping portion 32 allows for simultaneous assembly of the terminal and outer tube in the clamped state, resulting in improved efficiency.

[0066] Each of the workstations includes a first base and a second base respectively provided on the two turntables 60 and arranged correspondingly. The first base is provided with a first rotating shaft 61 that can extend toward the second base, and the second base is provided with a second rotating shaft 62 that can extend toward the first base. When the workstation moves to the receiving station and when the manipulator moves the outer tube and the third terminal into the outer tube accommodating cavity 3221 and the third terminal accommodating cavity 3213, the second rotating shaft 62 and the first rotating shaft 61 are respectively ejected by the ejector pin 41 and the first terminal, the second terminal and the third terminal are inserted into the outer tube. The first rotating shaft 61 and the second rotating shaft 62 of the workstation are respectively driven and connected with a fifth driving assembly, and the fifth driving assembly drives the first rotating shaft 61 and / or the second rotating shaft 62 to rotate. In this embodiment, the fifth driving assembly includes a rotatable rubber wheel, and correspondingly, a transmission rubber wheel is provided on the second rotating shaft 62 and / or the first rotating shaft 61. The rubber wheel drives the first rotating shaft 61 and / or the second rotating shaft 62 to rotate through the transmission rubber wheel on the second rotating shaft 62 and / or the first rotating shaft 61, thereby assisting the first rotating shaft 61 and the second rotating shaft 62 to penetrate into the outer tube.

[0067] Separating the first rotating shaft 61 and the second rotating shaft 62 used to eject the outer tube and the terminal from the ejector pin 41 can ensure the assembly effect while simultaneously creating a rotating state for the assembled workpiece, avoiding the need for a separate rotation drive assembly and improving work efficiency. Preferably, to ensure work accuracy during assembly, the assembly mechanism 4 also includes a sixth drive assembly 43 for driving the first rotating shaft 61 and the second rotating shaft 62 to penetrate the first terminal and the second terminal, respectively. The sixth drive assembly 43 drives the fourth drive assembly 42 and the ejector pin 41 to move, thereby ejecting the first rotating shaft 61 and penetrating the terminal. At this time, the outer clamping portion 321 releases the terminal, and the fourth drive assembly 42 then drives the ejector pin 41 to eject the first rotating shaft 61 and the second rotating shaft 62, respectively, and push the terminal into the outer tube.

[0068] As a further optimization of this embodiment, the station preceding the receiving station is designated as a disengagement station. Reset mechanisms 7 are provided on either side of the disengagement station for resetting the first rotating shaft 61 and the second rotating shaft 62. Specifically, the reset mechanisms 7 include mechanical claws 74 for grasping the first rotating shaft 61 and the second rotating shaft 62, respectively. These claws 74 are driven by pneumatic cylinders. When a workpiece is conveyed to the reset mechanism 7 on the turntable, the mechanical claws 74, driven by the pneumatic cylinders, grasp and reset the first rotating shaft 61 and the second rotating shaft 62, respectively. This causes the first rotating shaft 61 and the second rotating shaft 62 to lose power and cease rotation.

[0069] A material receiving mechanism 72 is provided above the ejection station for grabbing the formed workpiece and moving it to an external collector 8, comprising a grabbing assembly and a cylinder group 75 for driving the grabbing assembly to move. When the material receiving mechanism grabs the formed workpiece, the reset mechanism 7 drives the first rotating shaft 61 and the second rotating shaft 62 to reset.

[0070] In this embodiment, the molding mechanism 5 is one, which is arranged toward the center of the turntable 60 and away from the receiving station, and is arranged on the outer edge of the turntable 60 and corresponds to the station arrangement after the receiving station, thereby avoiding the receiving station arrangement. In other embodiments, the molding mechanism 5 can also be set to two or three, depending on the spatial layout and the required processing efficiency. Such structural changes still fall within the scope of protection of the present invention. Specifically, the first rotating shaft 61 and the second rotating shaft 62 of the station corresponding to the molding mechanism 5 are both connected to the fifth driving assembly through a rubber wheel drive to facilitate the uniform heating and molding of the workpiece during rotation. In other embodiments, the first rotating shaft 61 and the second rotating shaft 62 of each station are both connected to the fifth driving assembly 44 through a rubber wheel drive to drive the first rotating shaft 61 and the second rotating shaft 62 to rotate, thereby facilitating the pushing of the terminal into the outer tube during assembly, or facilitating the removal of the first rotating shaft 61 and the second rotating shaft 62 when removing the workpiece.

[0071] Specifically, the forming mechanism 5 includes a heating block 53 and a heating coil 51 arranged outside the heating block 53. An air flow channel 52 is provided inside the heating block 53. The heating coil 51 is a ceramic heating coil and is arranged to wrap the heating block 53. An air outlet 541 is provided at one end of the air flow channel 52, and an air inlet is provided at the other end. The air outlet 541 corresponds to the work station, and the shape of the air outlet 541 is set to be flat. The air inlet is connected to the external air supply mechanism. The heating block 53 is also fixedly connected to a blowing structure 54. The air outlet 541 is provided at the end of the blowing structure 54 to provide good heat conduction performance. The blowing structure 54 is also heated by the heating block 53 to reduce the possibility of the blown hot air being cooled. By setting a forming mechanism, the blown hot air corresponds to the terminal part, so that the outer tube corresponding to the terminal part shrinks and tightly wraps the terminal to form a Figure 1 The workpiece shown. Preferably, the heating block 53 is a copper block, which has excellent thermal conductivity. By placing the heating block 53 within the forming mechanism 5, the temperature can be raised more evenly, preventing overheating and damage to the outer tube. To ensure that heat is not lost during the heating process, an insulating layer 55 is provided surrounding the heating coil, including but not limited to a layer disposed on the end face or outer edge of the heating coil 51.

[0072] Preferably, a blower mechanism 56 is provided next to the workstation behind the forming mechanism 5 for blowing out cold air to cool the processed heat shrink tube workpiece, thereby making rational use of equipment space and achieving a higher degree of automation.

[0073] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A heat shrink tube production device, characterized in that: include: Two terminal feeding mechanisms arranged opposite to each other are used to respectively feed the first terminal and the second terminal; An outer tube feeding mechanism for conveying outer tubes; A clamping mechanism provided between the two terminal feeding mechanisms includes a movable clamping portion, the clamping portion including an outer clamping portion and an inner clamping portion arranged in a nested manner, the outer clamping portion sequentially provided with a first terminal accommodating cavity and a second terminal accommodating cavity for accommodating a first terminal and a second terminal, the outer clamping portion achieving synchronous clamping and release of the first terminal and the second terminal through a second drive assembly, the inner clamping portion being provided between the first terminal accommodating cavity and the second terminal accommodating cavity, and having an outer tube accommodating cavity provided therein, the inner clamping portion achieving clamping and release of the outer tube through a third drive assembly; An assembly mechanism includes two ejector pins arranged opposite to each other, for assembling the terminal on the clamping portion and pushing it into the outer tube on the clamping portion; The forming mechanism is used to blow out hot air to shrink the outer tube and wrap the terminal tightly; A conveying mechanism, used to convey the assembled workpiece to the forming mechanism; The clamping mechanism also includes a first driving component, which drives the clamping part to move between a first position and a second position. When the clamping part is in the first position, the terminal feeding mechanism and the outer tube feeding mechanism feed the clamping part. When the clamping part is in the second position, the assembly mechanism assembles the terminal into the outer tube held by the clamping part.

2. The heat shrink tube production device according to claim 1, characterized in that: The outer clamping portion is further provided with a third terminal accommodating cavity for accommodating a third terminal. The third terminal accommodating cavity is provided between the first terminal accommodating cavity and the outer tube accommodating cavity. The outer clamping portion realizes synchronous clamping and release of the third terminal through a second driving assembly.

3. The heat shrink tube production device according to claim 2, characterized in that: The outer clamping portion is provided with a terminal opening communicating with the third terminal accommodating cavity, and the third terminal enters the third terminal accommodating cavity through the terminal opening.

4. The heat shrink tube production device according to claim 3, characterized in that: The outer tube feeding mechanism includes an outer tube feeding channel, and a manipulator for grabbing the outer tube into the outer tube accommodating cavity is provided above the outer tube feeding channel.

5. The heat shrink tube production device according to claim 4, characterized in that: A temporary storage portion for accommodating the third terminal is provided on one side of the top end of the outer tube feed channel. The temporary storage portion is driven and connected to a seventh drive assembly for pushing the temporary storage portion toward the outer tube feed channel. The manipulator is configured to simultaneously grasp / release the outer tube and the third terminal.

6. The heat shrink tube production device according to claim 4, characterized in that: The outer tube feeding mechanism further includes an outer tube vibration feeding tray, which is connected to the outer tube feeding channel and is used to supply outer tubes to the outer tube feeding channel.

7. The heat shrink tube production device according to claim 5, characterized in that: A third terminal vibration feeding tray is also provided on one side of the temporary storage portion, and a third terminal feeding channel is provided at the end of the third terminal vibration feeding tray. The end of the third terminal feeding channel is provided with a downward curved arc surface and is provided above the temporary storage portion, and is used to drive the third terminal to fall into the temporary storage portion.

8. The heat shrink tube production device according to claim 1, characterized in that: The first driving assembly includes a rotating arm and a power assembly for driving the rotating arm to rotate, and the clamping portion is detachably connected to the rotating arm.

9. The heat shrink tube production device according to claim 8, characterized in that: The power assembly is driven and connected to the middle part of the rotating arm, and there are at least two clamping parts, which are respectively arranged at both ends of the rotating arm.

10. The heat shrink tube production device according to claim 1, characterized in that: The terminal feeding mechanism comprises: A feeding channel for conveying terminal blanks, with feeding wheel assemblies provided on both sides of the feeding channel for driving the terminal blanks forward or backward; A cutting assembly is provided above the feeding channel and is used for cutting the terminal blank; An alignment component is provided at the end of the feeding channel and can be pushed toward the clamping portion to assist the first terminal / the second terminal to enter the first terminal accommodating cavity / the second terminal accommodating cavity.

11. The heat shrink tube production device according to claim 1, characterized in that: The conveying mechanism includes a turntable that can rotate around its own axis. The turntable includes two turntables that are arranged relatively to each other and move synchronously. The turntable is provided with several stations for accommodating assembled workpieces. When one of the stations moves to the clamping part located in the second position, the station is set as a receiving station for receiving the assembled workpiece. The assembly mechanism is arranged next to the receiving station.

12. The heat shrink tube production device according to claim 11, characterized in that: The assembly mechanism includes two ejectors and a fourth drive assembly that drives the two ejectors to perform linear reciprocating motion in opposite directions. The two ejectors are arranged on both sides of the receiving station, corresponding to the two ends of the clamping part when it is in the second position.

13. The heat shrink tube production device according to claim 12, characterized in that: Each of the workstations includes a first base and a second base respectively arranged on the two turntables and arranged correspondingly. The first base is provided with a first rotating shaft that can extend toward the second base, and the second base is provided with a second rotating shaft that can extend toward the first base. When the workstation moves to the receiving station, the second rotating shaft and the first rotating shaft are respectively ejected by the ejector and the first terminal, the second terminal, and the third terminal are inserted into the outer tube.

14. The heat shrink tube production device according to claim 11, characterized in that: At least one of the first rotating shaft and the second rotating shaft of at least one workstation is drivingly connected to a fifth driving assembly, and the fifth driving assembly drives the first rotating shaft and / or the second rotating shaft to rotate.

15. The heat shrink tube production device according to claim 14, characterized in that: The station before the receiving station is set as the disengaging station, and reset mechanisms for respectively resetting the first rotating shaft and the second rotating shaft are provided on both sides of the disengaging station.

16. The heat shrink tube production device according to claim 15, characterized in that: A material receiving mechanism for grabbing the formed workpiece and moving it to a collector is provided above the disengaging station. When the material receiving mechanism grabs the formed workpiece, a reset mechanism drives the first rotating shaft and the second rotating shaft to reset.

17. The heat shrink tube production device according to claim 11, characterized in that: The forming mechanism includes a heating block and a heating coil arranged outside the heating block. An air flow channel is provided inside the heating block. An air outlet is provided at one end of the air flow channel and an air inlet is provided at the other end. The air outlet is arranged corresponding to the work station, and the air inlet is connected to an external air supply mechanism.

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