An injection molding device for the external insulation sheath of an automotive wire harness

Abstract

The present invention relates to the technical field of wire harness sheath injection molding, and specifically discloses an injection molding device for the external insulation sheath of an automotive wire harness, including a mounting plate. Above the mounting plate, a lower mold is installed, and above the lower mold, an upper mold is installed. A plurality of injection molding grooves are formed inside the lower mold and the upper mold, and a plurality of first openings are formed through one side of the lower mold and the upper mold. By providing clamping plates, pressing plates and connecting rods, when loading the wire harness, the clamping plates move to the first openings, and then the wire harness is clamped for loading. In this way, the staff does not need to put their hands between the upper mold and the lower mold to load the wire harness, greatly reducing the operation risk of the staff and increasing the safety of the device during use. After the wire harness loading is completed, one end of the wire harness is fixed by the pressing plate and the connecting rod, and then the wire harness is clamped by the clamping plate and pulled, so that the wire harness part inside the injection molding groove can be in a straightened state.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness sheath injection molding, and particularly relates to an injection molding device for the external insulation sheath of automotive wire harnesses. Background Art

[0002] A wire harness sheath is a tubular sleeve material used to protect and organize wire harnesses. It is commonly used to wrap and fix wire harnesses in fields such as automobiles, aviation, electronics, and machinery to increase the durability, protection, and aesthetics of the wire harnesses.

[0003] Currently, the injection molding method for automotive wire harness insulation sheaths is that workers manually place the automotive wire harness into the lower mold of the injection molding die. Subsequently, the upper mold of the injection molding die moves downward. When the upper mold coincides with the lower mold, the wire harness is fixed in the injection cavity. Subsequently, the injection molding die injects the automotive wire harness inside. By injecting the automotive wire harness in this way, there are great operation risks during the process of workers manually placing the automotive wire harness. Moreover, in the way that the automotive wire harness is directly placed in the lower mold, there will be a certain degree of bending of the wire harness itself before injection molding. Therefore, during the injection molding process, the wire harness will be impelled by the injection liquid, resulting in uneven coating of the finished automotive wire harness sheath, so that the automotive wire harness sheath cannot achieve the expected effect when in use. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art and propose an injection molding device for the external insulation sheath of automotive wire harnesses.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An injection molding device for the external insulation sheath of automotive wire harnesses includes a mounting plate. Above the mounting plate, a lower mold is installed. Above the lower mold, an upper mold is installed. A plurality of injection molding grooves are provided inside both the lower mold and the upper mold. A plurality of first openings are provided through one side of the lower mold and the upper mold, and a plurality of second openings are provided through the other side of the lower mold and the upper mold. The positions and quantities of the first openings and the second openings correspond to those of the injection molding grooves, and the first openings and the second openings are connected to the injection molding grooves. The lower mold and the upper mold are provided with a first auxiliary mechanism on the side where the first openings are provided, and the lower mold and the upper mold are provided with a second auxiliary mechanism on the side where the second openings are provided.

[0007] Preferably, the first auxiliary mechanism includes a pressing plate and a connecting rod. A pressing plate is movably installed outside the first opening of the upper mold, and a connecting rod is movably installed outside the first opening of the lower mold. A camera is installed on the side of the pressing plate away from the upper mold, and a camera is installed on the side of the connecting rod away from the lower mold.

[0008] Preferably, a second electric telescopic rod is installed on the top of the pressing plate. The telescopic end of the second electric telescopic rod is connected to the pressing plate. The side of the second electric telescopic rod close to the upper die is connected to the upper die. A first electric telescopic rod is installed at the bottom of the connecting rod. The telescopic end of the first electric telescopic rod is connected to the bottom of the connecting rod. The side of the first electric telescopic rod close to the lower die is connected to the lower die.

[0009] Preferably, two first movable plates are movably installed at the top of the connecting rod. First slots are formed through the sides of the two first movable plates close to each other. Both ends of the pressing plate can be inserted into the inside of the first slots.

[0010] Preferably, a first chute is horizontally formed along the length direction at the top of the connecting rod. A first electric slider is installed at the bottom of the first movable plate. The first electric slider is slidably installed inside the first chute. Cleaning sponges are installed on the sides of the two first movable plates close to each other. Cleaning sponges are also installed at the top of the connecting rod and the bottom of the pressing plate.

[0011] Preferably, the second auxiliary mechanism includes a fixing plate and a second movable plate. A fixing plate is installed at the bottom of the side of the lower die where the second opening is formed. A plurality of second movable plates are movably installed at the top of the fixing plate. The number and positions of the second movable plates correspond to those of the second opening. A plurality of second chutes are evenly and horizontally formed at the top of the fixing plate. The positions and numbers of the second chutes correspond to those of the second movable plates. A second electric slider is installed at the bottom of the second movable plate. The second electric slider is slidably installed inside the second chute. A clamping mechanism is provided on the second movable plate.

[0012] Preferably, the clamping mechanism includes a third movable plate and a clamping plate. A third movable plate is movably installed on the side of the second movable plate close to the second opening. Two clamping plates are movably installed on the side of the third movable plate close to the second opening.

[0013] Preferably, a second slot is formed through the second movable plate. A third electric telescopic rod is movably installed inside the second slot. The telescopic end of the third electric telescopic rod is connected to the third movable plate.

[0014] Preferably, third chutes are vertically formed on the inner walls of both sides of the second slot. A third electric slider is slidably installed inside the third chute. The side of the third electric slider close to the third electric telescopic rod is connected to the third electric telescopic rod.

[0015] Preferably, a fourth chute is vertically formed on the side of the third movable plate close to the second opening. A fourth electric slider is installed on the side of the clamping plate close to the third movable plate. The fourth electric slider is slidably installed inside the fourth chute.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In the present invention, by providing a clamping plate, a pressing plate and a connecting rod, when feeding the wire harness, the clamping plate moves to the first opening, and then clamps the wire harness for feeding, so that the staff does not need to put their hands between the upper die and the lower die to feed the wire harness, greatly reducing the operation risk of the staff and increasing the safety of the device. After the wire harness feeding is completed, one end of the wire harness is fixed by the pressing plate and the connecting rod, and then the wire harness is clamped and pulled by the clamping plate, so that the wire harness part inside the injection molding groove can be in a straightened state, which can prevent the uneven connection between the sheath of the injection molded part of the wire harness and the wire harness due to the bending of the wire harness itself during injection molding, affecting the actual use effect of the wire harness.

[0018] In the present invention, by providing a first movable plate, a camera and a second movable plate, during the pulling process of the wire harness, the surface of the passing wire harness can be photographed by the camera, and the photographed image is transmitted to the background control system. The background control system has a graphic comparison function, which can compare the photographed image of the wire harness with the image of the standard wire harness. If it is detected that there are damages, cracks and other influencing factors on the surface of the wire harness, at this time the background control system will issue a warning to prompt the staff that this wire harness has quality defects, and the staff can remove this wire harness in advance without injecting it, preventing the generation of defective wire harnesses. Through this operation method, the quality control of the finished wire harness can be completed;

[0019] During the retraction movement of the third electric telescopic rod driving the third movable plate, the outside of the wire harness passes between the pressing plate and the connecting rod. And because cleaning sponges are installed on the pressing plate, the connecting rod and the first movable plate, during the pulling process of the wire harness, the dust and impurities on the outside of the wire harness will be scraped off by the cleaning sponges, completing the cleaning work on the outside of the injection molded wire harness, preventing the dust and impurities on the outside of the wire harness from affecting the injection molding quality of the wire harness insulation sheath, and increasing the convenience of use of the device;

[0020] After injection molding, the upper die rises to the preset height position. At this time, the first electric telescopic rod and the third movable plate move upward synchronously, and the second electric telescopic rod makes a corresponding contraction movement until the sheath of the wire harness in the lower die disengages from the injection molding groove in the lower die. Through this demolding method, the force when the wire harness sheath demolds can be horizontal upward, which can avoid the scratching between the wire harness sheath and the lower die when the staff pulls the wire harness to demold, and prevent the wire harness sheath from being scratched during demolding, increasing the convenience of use of the device;

[0021] When the upper die and the lower die need to be transferred, the top of the upper die is clamped by the clamping plate, and both ends of the pressing plate are clamped into the first slot, so that the lower die and the upper die can be fixed, preventing the lower die and the upper die from falling off during transportation, causing damage to the mold cores inside the upper die and the lower die, and increasing the functional diversity of the device. Brief Description of the Drawings

[0022] Figure 1 This is the overall front view structural schematic diagram of the present invention;

[0023] Figure 2 This is the overall rear view structural schematic diagram of the present invention;

[0024] Figure 3 This is the installation structural schematic diagram of the first electric telescopic rod and the second electric telescopic rod of the present invention;

[0025] Figure 4 This is the installation structural schematic diagram of the connecting rod and the first movable plate of the present invention;

[0026] Figure 5 This is the installation structural schematic diagram of the second movable plate of the present invention;

[0027] Figure 6 This is the installation structural schematic diagram of the third electric slider of the present invention;

[0028] Figure 7 This is the installation structural schematic diagram of the clamping plate of the present invention;

[0029] Figure 8 This is the structural schematic diagram of the lower mold and the upper mold of the present invention.

[0030] In the figure: 1, mounting plate; 2, lower mold; 3, upper mold; 4, first opening; 5, first electric telescopic rod; 6, second opening; 7, fixing plate; 8, second electric telescopic rod; 9, pressing plate; 10, injection molding groove; 11, camera; 12, connecting rod; 13, first chute; 14, first electric slider; 15, first movable plate; 16, first slot; 17, second chute; 18, second electric slider; 19, second movable plate; 20, third electric telescopic rod; 21, clamping plate; 22, second slot; 23, third chute; 24, third electric slider; 25, third movable plate; 26, fourth chute; 27, fourth electric slider. Detailed Description of the Invention

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Refer to Figure 1-8, an injection molding device for the external insulation sheath of an automotive wire harness, including a mounting plate 1, a lower mold 2 is installed above the mounting plate 1, an upper mold 3 is installed above the lower mold 2, and a plurality of injection molding grooves 10 are provided inside the lower mold 2 and the upper mold 3. A plurality of first openings 4 are penetrated on one side of the lower mold 2 and the upper mold 3, and a plurality of second openings 6 are penetrated on the other side of the lower mold 2 and the upper mold 3. The positions and numbers of the first openings 4 and the second openings 6 correspond to those of the injection molding grooves 10, and the first openings 4 and the second openings 6 are communicated with the injection molding grooves 10. The lower mold 2 and the upper mold 3 are provided with a first auxiliary mechanism on the side where the first openings 4 are provided, and the lower mold 2 and the upper mold 3 are provided with a second auxiliary mechanism on the side where the second openings 6 are provided. Through the first auxiliary mechanism and the second auxiliary mechanism, the auxiliary feeding of the wire harness can be completed, reducing the operation risk of the staff. During the injection molding of the wire harness, by fixing the wire harness, it can prevent the uneven coating of the insulating sleeve on the outer side of the wire harness after injection molding, improving the finished product quality of the wire harness injection molding. It can assist in demolding the wire harness after injection molding, increasing the convenience of using the device. When transporting the upper mold 3 and the lower mold 2, the upper mold 3 and the lower mold 2 can be fixed to prevent the lower mold 2 and the upper mold 3 from falling off during transportation, causing damage to the mold cores inside the upper mold 3 and the lower mold 2, and increasing the functional diversity of the device.

[0033] As a technical optimization scheme of the present invention, the first auxiliary mechanism includes a pressing plate 9 and a connecting rod 12. The upper mold 3 is movably installed with a pressing plate 9 outside the first opening 4, and the lower mold 2 is movably installed with a connecting rod 12 outside the first opening 4. A camera 11 is installed on one side of the pressing plate 9 away from the upper mold 3, and a camera 11 is installed on one side of the connecting rod 12 away from the lower mold 2. During the process of pulling the wire harness, the surface of the passing wire harness can be photographed by the cameras 11 installed on the pressing plate 9 and the connecting rod 12, and the photographed images are transmitted to the background control system. The background control system has a graphic comparison function and can compare the photographed images of the wire harness with the images of the standard wire harness. If it is detected that there are damages, cracks and other influencing factors on the surface of the wire harness, at this time the background control system will issue a warning, prompting the staff that this wire harness has quality defects. The staff can remove this wire harness in advance without injecting it, preventing the generation of defective wire harnesses. Through this operation method, the quality control of the finished wire harness can be completed. By making the pressing plate 9 and the connecting rod 12 move closer to each other, the wire harness can be fixed, facilitating the subsequent operations of the device on the wire harness.

[0034] As a technical optimization solution of the present invention, a second electric telescopic rod 8 is installed on the top of the pressing plate 9. The telescopic end of the second electric telescopic rod 8 is connected to the pressing plate 9, and the side of the second electric telescopic rod 8 close to the upper mold 3 is connected to the upper mold 3. A first electric telescopic rod 5 is installed at the bottom of the connecting rod 12. The telescopic end of the first electric telescopic rod 5 is connected to the bottom of the connecting rod 12. The side of the first electric telescopic rod 5 close to the lower mold 2 is connected to the lower mold 2. The second electric telescopic rod 8 can drive the pressing plate 9 to move, and the first electric telescopic rod 5 can drive the connecting rod 12 to move, so that the pressing plate 9 and the connecting rod 12 can move to corresponding positions according to different usage requirements.

[0035] As a technical optimization solution of the present invention, two first movable plates 15 are movably installed at the top of the connecting rod 12. First slotted openings 16 are formed through the sides of the two first movable plates 15 that are close to each other. Both ends of the pressing plate 9 can be inserted into the interior of the first slotted openings 16. The pressing plate 9 can be inserted into the interior of the first slotted openings 16, so that the movement of the pressing plate 9 and the first movable plates 15 will not interfere with each other, increasing the operating stability of the device.

[0036] As a technical optimization solution of the present invention, a first sliding groove 13 is horizontally formed along the length direction at the top of the connecting rod 12. A first electric slider 14 is installed at the bottom of the first movable plate 15. The first electric slider 14 is slidably installed inside the first sliding groove 13. Cleaning sponges are installed on the sides of the two first movable plates 15 that are close to each other. Cleaning sponges are installed at the top of the connecting rod 12 and at the bottom of the pressing plate 9. By the sliding of the first electric slider 14 in the first sliding groove 13, the two first movable plates 15 can move closer to and away from each other, facilitating the conversion of the first movable plates 15 to corresponding usage states according to different usage requirements. During the retraction movement of the third movable plate 25 driven by the third electric telescopic rod 20, the outer side of the wire harness passes through between the pressing plate 9 and the connecting rod 12. Also, because cleaning sponges are installed on the pressing plate 9, the connecting rod 12 and the first movable plates 15, during the pulling process of the wire harness, the dust and impurities on the outer side of the wire harness will be scraped off by the cleaning sponges, completing the cleaning work on the outer side of the injection molded wire harness, preventing the dust and impurities on the outer side of the wire harness from affecting the injection molding quality of the wire harness insulation sheath, and increasing the usage convenience of the device.

[0037] As a technical optimization solution of the present invention, the second auxiliary mechanism includes a fixed plate 7 and a second movable plate 19. The lower mold 2 is provided with a fixed plate 7 at the bottom of the side where the second opening 6 is provided. A plurality of second movable plates 19 are movably provided on the top of the fixed plate 7. The number and position of the second movable plates 19 correspond to the second opening 6. A plurality of second slide grooves 17 are evenly and horizontally provided on the top of the fixed plate 7. The position and number of the second slide grooves 17 correspond to the second movable plates 19. A second electric slider 18 is provided at the bottom of the second movable plate 19. The second electric slider 18 is slidably installed inside the second slide groove 17. A clamping mechanism is provided on the second movable plate 19. The sliding of the second electric slider 18 in the second slide groove 17 can drive the second movable plate 19 to adjust the corresponding position. The clamping mechanism can clamp the wire harness to complete the feeding of the wire harness.

[0038] As a technical optimization solution of the present invention, the clamping mechanism includes a third movable plate 25 and a clamping plate 21. The second movable plate 19 is movably mounted with the third movable plate 25 on one side close to the second opening 6, and the third movable plate 25 is movably mounted with two clamping plates 21 on one side close to the second opening 6. The clamping plate 21 can clamp the wiring harness.

[0039] As a technical optimization solution of the present invention, a second slot 22 is provided through the second movable plate 19, and a third electric telescopic rod 20 is movably installed inside the second slot 22, and the telescopic end of the third electric telescopic rod 20 is connected to the third movable plate 25. The third electric telescopic rod 20 can drive the third movable plate 25 to extend, so that the third movable plate 25 can extend to the first opening 4, so that the clamping plate 21 can clamp the wiring harness.

[0040] As a technical optimization solution of the present invention, third slide grooves 23 are vertically opened on the inner walls on both sides of the second slot 22, and a third electric slider 24 is slidably installed inside the third slide groove 23. The third electric slider 24 is connected to the third electric telescopic rod 20 on one side close to the third electric telescopic rod 20. By sliding the third electric slider 24 in the third slide groove 23, the third electric telescopic rod 20 can move up and down on the second movable plate 19.

[0041] As a technical optimization solution of the present invention, the third movable plate 25 is vertically provided with a fourth slide groove 26 on one side close to the second opening 6, and the clamping plate 21 is provided with a fourth electric slider 27 on one side close to the third movable plate 25, and the fourth electric slider 27 is slidably installed inside the fourth slide groove 26. By sliding the fourth electric slider 27 in the fourth slide groove 26, the clamping plate 21 can be moved, so that the clamping plate 21 can be conveniently switched to different use positions according to different use requirements.

[0042] When the present invention is in use, the lower mold 2 and the upper mold 3 are existing mature technologies, so the specific working methods and principles thereof will not be elaborated too much. The electric mechanisms used in this device are all powered by connecting to an external power source through wires. This device is provided with a background control system for controlling the electric mechanisms of this device. Rubber pads are installed on one side of the two clamping plates 21 on a third movable plate 25 that are close to each other.

[0043] When it is necessary to inject a sheath for an automotive wire harness, at this time, the upper mold 3 moves upward away from the lower mold 2. When the upper mold 3 rises to a preset height position, the upper mold 3 stops rising. The second electric slider 18 slides in the second chute 17, causing the second movable plate 19 to move closer to the upper mold 3 and the lower mold 2. When the second movable plate 19 moves to a preset position, the second electric slider 18 stops sliding. Subsequently, the third electric slider 24 slides upward inside the third chute 23 until the bottom of the third movable plate 25 rises above the top of the lower mold 2. At this time, the third electric telescopic rod 20 drives the third movable plate 25 to perform an extending movement until the clamping plates 21 extend to the pressure plate 9 and the connecting rod 12. While the third electric telescopic rod 20 drives the third movable plate 25 to extend, through the extension of the first electric telescopic rod 5 and the second electric telescopic rod 8, the pressure plate 9 and the connecting rod 12 move to a preset height position. At this time, both ends of the pressure plate 9 are inserted into the inside of the first slot 16, and both ends of the pressure plate 9 extend to the outside of the first slot 16;

[0044] When the clamping plates 21 move to the pressure plate 9 and the connecting rod 12, the staff passes one end of the wire harness to be injected through between the pressure plate 9 and the connecting rod 12 until the end of the wire harness passing through the pressure plate 9 and the connecting rod 12 abuts against the third movable plate 25. At this time, through the sliding of the fourth electric slider 27 in the fourth chute 26, the two clamping plates 21 perform a movement of approaching each other until the two clamping plates 21 clamp and fix the wire harness. Subsequently, through the sliding of the first electric slider 14 in the first chute 13, the two first movable plates 15 perform a movement of approaching each other. Combining with the extension of the first electric telescopic rod 5 and the second electric telescopic rod 8, the cleaning sponges on the pressure plate 9, the connecting rod 12, and the first movable plate 15 all abut against the outside of the wire harness. Subsequently, the third electric telescopic rod 20 drives the third movable plate 25 to perform a retracting movement.

[0045] During the process of the third electric telescopic rod 20 driving the third movable plate 25 to perform a retracting movement, the outside of the wire harness passes through between the pressure plate 9 and the connecting rod 12. Also, because cleaning sponges are installed on the pressure plate 9, the connecting rod 12, and the first movable plate 15, during the process of the wire harness being pulled, the dust and impurities on the outside of the wire harness will be scraped off by the cleaning sponges, completing the cleaning work on the outside of the injected wire harness, preventing the dust and impurities on the outside of the wire harness from affecting the injection quality of the wire harness insulating sheath, and increasing the usability of the device;

[0046] During the process of pulling the wire harness, the camera 11 installed on the pressing plate 9 and the connecting rod 12 can take pictures of the surface of the passing wire harness, and transmit the captured images to the background control system. The background control system has a graphic comparison function, which can compare the images of the captured wire harness with those of the standard wire harness. If damage, cracks, and other influencing factors are detected on the surface of the wire harness, the background control system will issue a warning at this time, prompting the staff that there are quality defects in this wire harness. The staff can remove this wire harness in advance without injecting it, preventing the production of defective wire harnesses. Through this operation method, the quality control of the finished wire harness can be completed.

[0047] When the third movable plate 25 pulls the wire harness to the preset position, the third movable plate 25 stops moving, and the upper die 3 moves downward towards the lower die 2. During the downward movement of the upper die 3, the connecting rod 12 and the pressing plate 9 cooperate with the telescopic movement of the first electric telescopic rod 5 and the second electric telescopic rod 8, combined with the up and down movement of the third movable plate 25 on the second movable plate 19, so that the wire harness is always in a horizontal state during the downward movement of the upper die 3, preventing the wire harness from interfering with the upper die 3 during the downward pressing of the upper die 3, causing damage to the wire harness and the upper die 3, and increasing the use stability of the device.

[0048] Through the clamping plate 21 extending to the pressing plate 9 and the connecting rod 12, and then the staff straightens one end of the wire harness at the clamping plate 21. The feeding method of clamping and pulling the wire harness by the clamping plate 21 avoids the working method of the staff feeding the wire harness by hand through between the upper die 3 and the lower die 2, greatly reducing the operation risk of the staff and increasing the use safety of the device.

[0049] Before the upper die 3 and the lower die 2 are completely closed, the two first movable plates 15 move towards each other until the first movable plates 15 press the wire harness tightly. The pressing plate 9 moves downward again until the pressing plate 9 and the connecting rod 12 press the wire harness tightly. At this time, the end of the wire harness far from the clamping plate 21 is fixed. Then the second movable plate 19 moves away from the lower die 2 and the upper die 3. When the second movable plate 19 moves to the preset position, the wire harness is straightened. By the operation method of straightening the wire harness by the second movable plate 19, the part of the wire harness inside the injection molding groove 10 can be in a straightened state, which can prevent the uneven connection between the sheath of the injection molded part of the wire harness and the wire harness due to the bending of the wire harness itself during injection molding, affecting the actual use effect of the wire harness.

[0050] After straightening the wire harness, the upper mold 3 continues to descend until the upper mold 3 fits with the lower mold 2. At this time, the wire harness is clamped at the first opening 4 and the second opening 6. Subsequently, injection molding is started inside the injection molding groove 10. After the injection molding is completed, the upper mold 3 moves upward to disengage from the lower mold 2. During the process of the upper mold 3 disengaging from the lower mold 2, the second electric telescopic rod 8 extends downward. The extension process of the second electric telescopic rod 8 is adapted to the upward movement process of the upper mold 3, so that the wire harness after injection molding can remain in a horizontal state stably in the injection molding groove 10 of the lower mold 2 during the upward movement of the upper mold 3. After the upper mold 3 rises to the preset height position, at this time, the first electric telescopic rod 5 and the third movable plate 25 perform synchronous upward movements, and the second electric telescopic rod 8 performs an adapted contraction movement until the sheath of the wire harness in the lower mold 2 disengages from the injection molding groove 10 in the lower mold 2. Through this demolding method, the force during the demolding of the wire harness sheath can be horizontal upward, which can avoid the scratching between the wire harness sheath and the lower mold 2 when the staff pulls the wire harness for demolding, and avoid the generation of scratches on the wire harness sheath during demolding, thus increasing the usability of the device;

[0051] Subsequently, the two first movable plates 15 move away from each other, so that the two ends of the pressing plate 9 are no longer inserted into the inside of the first slot 16. The pressing plate 9 and the connecting rod 12 move away from each other, and the clamping plate 21 loosens the wire harness, and the staff can remove the wire harness after injection molding. After removing the wire harness after injection molding, the staff can repeat the above operation steps to perform the operation of injecting the sheath for the next wire harness.

[0052] If the wire harness after injection molding needs to detect the anti-bending ability of the injection molding part, after the wire harness moves upward to disengage from the lower mold 2, the wire harness does not disengage from the first auxiliary mechanism and the second auxiliary mechanism. By the up and down telescoping of the first electric telescopic rod 5 and the second electric telescopic rod 8, the wire harness is bent, and the anti-bending ability of the injection molding part of the wire harness can be tested.

[0053] When the upper die 3 and the lower die 2 need to be positionally transferred, the electric motor on the device is powered, and then the second electric telescopic rod 8 extends downward until the top of the pressing plate 9 moves below the top end of the inner wall of the first slot 16. Then, the two first movable plates 15 move closer to each other, so that both ends of the pressing plate 9 are inserted into the inside of the first slot 16. Subsequently, the second electric telescopic rod 8 retracts, so that the top of the pressing plate 9 abuts against the top of the inner wall of the first slot 16. The two clamping plates 21 on the third movable plate 25 move upward, so that both clamping plates 21 move above the third movable plate 25. Then, the third electric slider 24 moves upward in the third chute 23, so that the third movable plate 25 moves upward until the bottom of the clamping plate 21 below the third movable plate 25 moves above the top of the upper die 3. Then, the second movable plate 19 moves closer to the upper die 3 and the lower die 2 until the clamping plate 21 moves to the top of the upper die 3. Then, the clamping plate 21 moves downward, so that the clamping plate 21 abuts against the top of the upper die 3. At this time, the device is powered off. By the clamping plate 21 abutting against the upper die 3 and the pressing plate 9 and the first movable plate 15 abutting against each other, the fixation of the lower die 2 and the upper die 3 can be completed, preventing the lower die 2 and the upper die 3 from falling off during transportation, causing damage to the mold cores inside the upper die 3 and the lower die 2, and increasing the functional diversity of the device.

[0054] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An injection molding device for the outer insulating sheath of an automotive wire harness, including a mounting plate (1), characterized in that, Above the installation plate (1), a lower mold (2) is installed. Above the lower mold (2), an upper mold (3) is installed. Inside the lower mold (2) and the upper mold (3), a plurality of injection slots (10) are provided. On one side of the lower mold (2) and the upper mold (3), a plurality of first openings (4) are penetrated. On the other side of the lower mold (2) and the upper mold (3), a plurality of second openings (6) are penetrated. The positions and quantities of the first openings (4) and the second openings (6) correspond to those of the injection slots (10), and the first openings (4) and the second openings (6) are communicated with the injection slots (10). On the side where the first openings (4) are provided on the lower mold (2) and the upper mold (3), a first auxiliary mechanism is provided. On the side where the second openings (6) are provided on the lower mold (2) and the upper mold (3), a second auxiliary mechanism is provided; The first auxiliary mechanism includes a pressing plate (9) and a connecting rod (12). Above the first opening (4), a pressing plate (9) is movably installed on the upper mold (3). Outside the first opening (4), a connecting rod (12) is movably installed on the lower mold (2). On the side away from the upper mold (3) of the pressing plate (9), a camera (11) is installed. On the side away from the lower mold (2) of the connecting rod (12), a camera (11) is installed; On the top of the pressing plate (9), a second electric telescopic rod (8) is installed. The telescopic end of the second electric telescopic rod (8) is connected to the pressing plate (9). On the side close to the upper mold (3) of the second electric telescopic rod (8), it is connected to the upper mold (3). On the bottom of the connecting rod (12), a first electric telescopic rod (5) is installed. The telescopic end of the first electric telescopic rod (5) is connected to the bottom of the connecting rod (12); On the side close to the lower mold (2) of the first electric telescopic rod (5), it is connected to the lower mold (2); On the top of the connecting rod (12), two first movable plates (15) are movably installed. On the side where the two first movable plates (15) are close to each other, a first slot (16) is penetrated. The two ends of the pressing plate (9) can be inserted into the inside of the first slot (16); On the top of the connecting rod (12), a first chute (13) is horizontally opened along the length direction. On the bottom of the first movable plate (15), a first electric slider (14) is installed. The first electric slider (14) is slidably installed inside the first chute (13). On the side where the two first movable plates (15) are close to each other, a cleaning sponge is installed. On the top of the connecting rod (12) and the bottom of the pressing plate (9), cleaning sponges are installed; The second auxiliary mechanism includes a fixed plate (7) and a second movable plate (19). The lower die (2) is provided with a fixed plate (7) at the bottom of one side where a second opening (6) is formed. A plurality of second movable plates (19) are movably installed on the top of the fixed plate (7). The number and positions of the second movable plates (19) correspond to those of the second openings (6). A plurality of second sliding grooves (17) are evenly and horizontally formed on the top of the fixed plate (7). The positions and numbers of the second sliding grooves (17) correspond to those of the second movable plates (19). A second electric slider (18) is installed at the bottom of the second movable plate (19). The second electric slider (18) is slidably installed inside the second sliding groove (17). A clamping mechanism is provided on the second movable plate (19). The clamping mechanism includes a third movable plate (25) and a clamping plate (21). The second movable plate (19) is movably installed with a third movable plate (25) on one side close to the second opening (6). Two clamping plates (21) are movably installed on the third movable plate (25) on one side close to the second opening (6).

2. The injection molding device for the outer insulation sheath of an automotive wiring harness according to claim 1, characterized in that, A second slot (22) is formed through the second movable plate (19). A third electric telescopic rod (20) is movably installed inside the second slot (22). The telescopic end of the third electric telescopic rod (20) is connected to the third movable plate (25).

3. The injection molding device for the external insulation sheath of an automotive wiring harness according to claim 2, characterized in that, Third sliding grooves (23) are vertically formed on the inner walls of both sides of the second slot (22). A third electric slider (24) is slidably installed inside the third sliding groove (23). One side of the third electric slider (24) close to the third electric telescopic rod (20) is connected to the third electric telescopic rod (20).

4. The injection molding device for the external insulation sheath of an automotive wire harness according to claim 1, wherein, A fourth sliding groove (26) is vertically formed on the third movable plate (25) on one side close to the second opening (6). A fourth electric slider (27) is installed on one side of the clamping plate (21) close to the third movable plate (25). The fourth electric slider (27) is slidably installed inside the fourth sliding groove (26).

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