Machining mold for automobile fastener production and machining method of machining mold

Abstract

The invention provides a machining die for automobile fastener production and a machining method thereof.The machining die comprises a base, a lower die fixedly connected to the top of the base and an upper die located over the lower die, and the upper die and the lower die are matched to form a forming cavity of an automobile fastener; the die further comprises a lower ejector pin mechanism, an upper ejector pin mechanism, a material guide plate, a material taking mechanism and a driving mechanism, the lower ejector pin mechanism is arranged in the base and the lower die, the lower ejector pin mechanism comprises a lower ejector pin plate arranged in the base, the upper ejector pin mechanism is arranged in the upper die, the upper ejector pin mechanism comprises an upper ejector pin plate, and the lower ejector pin plate is arranged in the base. The upper ejector pin mechanism comprises an upper die and a lower die, a containing cavity used for containing an upper ejector pin plate and allowing the upper ejector pin plate to move longitudinally is formed in the upper die, a locking assembly is arranged between the upper ejector pin plate and the lower die and used for locking the position of an upper ejector pin when the upper die and the lower die are closed, and the upper ejector pin mechanism further comprises an unlocking assembly. According to the discharging device, the discharging convenience during automobile fastener production is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive fastener production, and particularly relates to a processing mold and a processing method for automotive fastener production. Background Art

[0002] Automotive fasteners are key basic components used for connecting and fixing parts in automotive manufacturing. Currently, the processing molds for fastener production usually include an upper mold and a lower mold. An upper mold core and a lower mold core are respectively arranged in the upper mold and the lower mold. The upper mold core and the lower mold core are inserted and matched with each other to form a mold cavity. During use, the upper mold core moves relative to the lower mold core, extruding and discharging the excess molten liquid to cool and form automotive fasteners.

[0003] After retrieval, Chinese Patent Publication No.: CN116511418B discloses a processing mold and a processing method for fastener production, including a placement base. The top of the placement base is evenly provided with telescopic rods, and the top of the placement base is fixedly connected to the bottom of the telescopic rods. The top of the telescopic rods is slidably connected to a fitting frame. A lower mold is arranged inside the placement base, and the inner wall of the placement base is fixedly connected to the bottom of the lower mold. An upper mold is arranged inside the fitting frame, and the inner wall of the fitting frame is fixedly connected to the top of the upper mold. A transmission tube is fixedly connected to the top of the fitting frame. The lower mold includes a fitting frame, and transmission tubes are symmetrically arranged at the bottom of the fitting frame.

[0004] Although the above technical solution can reduce the generation of waste materials and avoid waste, when the upper mold and the lower mold are opened, the automotive fasteners are likely to adhere to the upper mold, resulting in easy deformation and damage of the automotive fasteners. Moreover, when the automotive fasteners are in the forming cavity, manual material taking is required, which is cumbersome and reduces production efficiency. Therefore, it is necessary to design a processing mold and a processing method for automotive fastener production to improve the above problems. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a processing mold and a processing method for automotive fastener production, aiming to solve the problems in the prior art that when the upper mold and the lower mold of the processing mold for automotive fastener production are opened, the automotive fasteners are likely to adhere to the upper mold, resulting in easy deformation and damage of the automotive fasteners, and manual material taking is required, which is cumbersome and reduces production efficiency.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] A processing mold for automotive fastener production, including a base, a lower mold fixedly connected to the top of the base, and an upper mold located directly above the lower mold. The upper mold and the lower mold cooperate to form a forming cavity for automotive fasteners;

[0008] A lower ejector mechanism, the lower ejector mechanism is arranged in the base and the lower mold, and the lower ejector mechanism includes a lower ejector plate arranged inside the base;

[0009] An upper ejector mechanism, the upper ejector mechanism is arranged inside the upper mold, the upper ejector mechanism includes an upper ejector plate, a receiving cavity for receiving the upper ejector plate and allowing the upper ejector plate to move longitudinally is opened inside the upper mold, a locking assembly is arranged between the upper ejector plate and the lower mold, the locking assembly is used to lock the position of the upper ejector when the upper mold and the lower mold are closed, and the upper ejector mechanism also includes a unlocking assembly, the unlocking assembly is used to release the locking effect of the upper mold and the lower mold;

[0010] A material guide plate, which is arranged on the lower mold and fixedly connected to the base;

[0011] A material taking mechanism, the material taking mechanism is arranged on one side of the lower die and placed at the material guide plate, the material taking mechanism is used to feed the formed automotive fasteners from the lower die to the material guide plate for discharging, the material taking mechanism includes a baffle, two bearing plates are arranged on the side of the baffle close to the lower die, the cross section of the bearing plate is an L-shaped structure, the baffle and the bearing plate are both located above the lower die, the material taking mechanism also includes an expansion reset component and a guide reset structure, which are used to drive the two bearing plates to expand and reset, a guide reset structure is arranged between the baffle and the base, and the guide reset structure is used to guide the bearing plate to move laterally to the upper side of the lower die and reset;

[0012] The driving mechanism is arranged on the base, and is used for driving the lower ejector mechanism to lift and demould the formed automobile fastener from the lower mold, and driving the unlocking component and the material taking mechanism to act.

[0013] Preferably, a plurality of lower ejectors are fixedly connected to the top of the lower ejector plate, lower ejector holes for the lower ejectors to pass through are opened on the base and the lower mold, the top ends of the lower ejectors pass through the lower ejector holes and are placed in the molding cavity, and a lower ejector reset member is sleeved between the lower ejector plate and the base and located on the outer sides of the lower ejectors;

[0014] A plurality of upper ejector pins are fixedly connected to the bottom of the upper ejector pin plate, a plurality of upper ejector pin holes communicating with the accommodating cavity are formed at the bottom of the upper mold, one end of the upper ejector pin passes through the upper ejector pin hole, and an upper ejector pin resetting member is sleeved between the upper ejector pin and the bottom end of the accommodating cavity and located on the outside of the upper ejector pin.

[0015] Preferably, the driving mechanism includes a fixed seat fixedly connected to the bottom of the lower ejector plate, a pushing block slidably connected to the base, and a driving member installed on the base, the output end of the driving member is fixedly connected to the pushing block, and a limiting slide groove is provided at the bottom of the fixed seat along the moving direction of the pushing block, and a first inclined surface for cooperative sliding is provided on the side of the limiting slide groove close to the pushing block.

[0016] Preferably, the locking component includes connecting rods symmetrically and fixedly connected to both sides of the upper thimble plate. Through grooves for the connecting rods to pass through and move longitudinally are formed on both sides of the upper die. One end of each connecting rod passes through the through groove and is fixedly connected to a connecting block. An installation groove is formed inside the connecting block. A plug is slidably connected inside the installation groove. A first reset member is fixedly connected between one side of the plug and the inner wall of the installation groove. A pulling block is fixedly connected to the outside of the plug. The locking component further includes fixing blocks fixedly connected to both sides of the lower die. The fixing blocks correspond to the positions of the plugs. A jack for the plug to insert is formed on the fixing block. A sliding second inclined surface is provided on the side of the plug and the fixing block close to each other.

[0017] Preferably, the unlocking component includes a fixing rod fixedly connected to one end of the pushing block. One end of the fixing rod passes through the limiting sliding groove and extends to the outside of the base and is fixedly connected to a U-shaped pulling rod. L-shaped pulling rods are fixedly connected to both ends of the U-shaped pulling rod. The L-shaped pulling rods are arranged outside the lower die and correspond to the positions of the pulling blocks.

[0018] Preferably, the material taking mechanism includes a baffle. Two bearing plates are arranged on the side of the baffle close to the lower die. The cross section of the bearing plate is an L-shaped structure. The baffle and the bearing plates are both located above the lower die. The material taking mechanism further includes an expansion and reset component and a guiding and reset structure for driving the two bearing plates to expand and reset. A guiding and reset structure is arranged between the baffle and the base. The guiding and reset structure is used to guide the bearing plates to move horizontally above the lower die and reset.

[0019] Preferably, a groove is formed along the length direction on one side of the baffle where the bearing plates are located. The expansion and reset component includes a pair of first guiding rods fixedly connected to the groove. The bearing plates are slidably sleeved on the pair of first guiding rods. A second reset member is sleeved outside the first guiding rods between the sides of the two bearing plates facing away from each other and the inner wall of the groove. A linkage rod is rotatably connected to the bottom of the bearing plate. The ends of the two linkage rods away from the bearing plates are rotatably connected to the same linkage seat. A connecting plate is fixedly connected to the end of the bearing plate away from the baffle. A telescopic member is fixedly installed on the connecting plate. The output end of the telescopic member faces the bearing plate and is fixedly connected to a stop block. An avoidance groove for the stop block to pass through is formed on the bearing plate.

[0020] Preferably, the expansion and reset component further includes a retaining baffle fixedly connected to the base. The retaining baffle corresponds to the position of the linkage seat.

[0021] Preferably, the guiding and reset structure includes a supporting plate fixedly connected to one side of the baffle. A pair of second guiding rods are fixedly connected to the side of the supporting plate close to the base. A guiding sleeve is slidably sleeved on the outside of the second guiding rods. The guiding sleeve is fixedly connected to the outer wall of the base. A third reset member is sleeved outside the second guiding rods between the guiding sleeve and the supporting plate.

[0022] Preferably, the guide reset structure further comprises a pushing plate fixedly connected to the pushing block, and the pushing plate corresponds to the support plate in position.

[0023] The present invention also provides a method for processing a processing mold for producing automotive fasteners, comprising the following steps:

[0024] S1. The upper mold is driven down by the lifting device and closes with the lower mold. At this time, the upper ejector plate and the lower mold are automatically locked and fixed by the locking assembly.

[0025] S2. Pour hot melt material into the injection port. The hot melt material will flow in the molding cavity. After the hot melt material is cooled, the automotive fastener will be formed inside the molding cavity.

[0026] S3. The upper mold rises and opens with the lower mold under the driving of the lifting device. The upper ejector plate is locked and fixed, so that the position of the upper ejector plate does not change. The bottom end of the upper ejector plate extends from the upper ejector hole to press against the formed automotive fastener to prevent the formed automotive fastener from adhering to the upper mold.

[0027] S4, the driving mechanism works to push the unlocking assembly to release the locking effect between the upper ejector plate and the lower mold, the upper ejector plate and the upper ejector are reset, and then the push block cooperates with the fixing seat to drive the lower ejector plate and the lower ejector to be lifted, so that the molded automotive fastener is ejected from the molding cavity;

[0028] S5. After the lower ejector mechanism demolds the molded automotive fastener, the driving mechanism continues to work, driving the material taking mechanism to move toward the lower mold, carrying the molded automotive fastener. Then the driving mechanism resets, driving the material taking mechanism to reset, and transfers the molded automotive fastener to the material guide plate for unloading. At the same time, the lower ejector resets.

[0029] Compared with the prior art, the present invention has at least the following beneficial effects:

[0030] 1. The present invention provides a locking assembly and a unlocking assembly. When the upper mold and the lower mold are opened, the upper mold moves upward longitudinally. At this time, the upper ejector plate is fixed to the lower mold, so that the position of the upper ejector plate does not change. The bottom end of the upper ejector plate extends from the upper ejector hole to resist the molded automobile fastener to avoid the problem of adhesion between the automobile fastener and the upper mold. When the upper ejector plate moves to the maximum stroke in the accommodating cavity, the locking effect of the upper ejector plate and the lower mold is released by the unlocking assembly, and the upper ejector plate and the upper ejector are reset under the action of the coil spring so as to be used in the next injection molding production.

[0031] 2. Through the provided material taking mechanism of the present invention, after the lower ejector mechanism demolds the formed automotive fastener, the baffle and the bearing plate move horizontally under the action of the driving mechanism, so that the baffle and the bearing plate are placed outside the formed automotive fastener. Since the bearing plate is L-shaped, a part of the bearing plate is located on the side of the automotive fastener, and the other part is located at the bottom of the formed automotive fastener, which is used to bear the formed automotive fastener. The formed automotive fastener is placed in the space formed by the baffle and the two bearing plates. Then, the driving part drives the pushing block to reset, and under the action of the guiding and resetting structure, the baffle and the bearing plate are driven to reset, driving the formed automotive fastener to be transferred above the guiding plate. Then, the two bearing plates are expanded by the expansion and reset component, so that the formed automotive fastener automatically falls onto the guiding plate for discharging, improving the convenience of discharging during the production of automotive fasteners and enhancing the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0033] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ;

[0034] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ;

[0035] Figure 3 Schematic diagram of the lower die structure of the present invention;

[0036] Figure 4 Schematic diagram of the structure of the lower ejector mechanism of the present invention;

[0037] Figure 5 Schematic diagram of the structure of the fixed seat of the present invention;

[0038] Figure 6 Schematic diagram of the structure of the driving mechanism of the present invention;

[0039] Figure 7 Schematic diagram of the upper die structure of the present invention;

[0040] Figure 8 Schematic diagram of the structure of the upper ejector mechanism of the present invention;

[0041] Figure 9 Schematic diagram of the structure of the locking component of the present invention;

[0042] Figure 10 Schematic diagram of the structure of the unlocking component of the present invention;

[0043] Figure 11This is a schematic structural diagram of the material taking mechanism of the present invention.

[0044] [Reference numerals]

[0045] 1. Base;

[0046] 2. Lower die;

[0047] 3. Upper die; 301. Accommodating cavity; 302. Through groove;

[0048] 4. Lower ejector mechanism; 401. Lower ejector plate; 402. Lower ejector pin;

[0049] 5. Driving mechanism; 501. Fixed seat; 5011. Limit sliding groove; 502. Pushing block; 503. Driving part;

[0050] 6. Upper ejector mechanism; 601. Upper ejector plate; 602. Upper ejector pin; 603. Connecting rod; 604. Connecting block; 605. Insert block; 606. First reset part; 607. Pulling block; 608. Fixed block; 609. Fixed rod; 610. U-shaped pull rod; 611. L-shaped pull rod;

[0051] 7. Material taking mechanism; 701. Baffle; 702. Bearing plate; 7021. Connecting plate; 7022. Telescopic part; 7023. Stopper; 703. First guide rod; 704. Second reset part; 705. Support plate; 706. Second guide rod; 707. Third reset part; 708. Guide sleeve; 709. Link rod; 710. Link seat; 711. Pushing plate; 712. Retaining baffle;

[0052] 8. Guide plate.

[0053] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation manners

[0054] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0055] Embodiment: As Figures 1 to 11As shown in the figure, an embodiment of the present invention provides a processing die for manufacturing automotive fasteners, which includes a base 1, a lower die 2 fixedly connected to the top of the base 1, and an upper die 3 located directly above the lower die 2. The upper die 3 moves longitudinally driven by a lifting device to be clamped or unclamped with the lower die 2. The lifting device is a commonly used mechanism in injection molds, and its specific structure will not be elaborated here. The upper die 3 and the lower die 2 cooperate to form a forming cavity for automotive fasteners. It also includes a lower ejector pin mechanism 4, an upper ejector pin mechanism 6, a material guiding plate 8, a material taking mechanism 7, and a driving mechanism 5. During the process of the upper die 3 and the lower die 2 being unclamped, the upper ejector pin mechanism 6 acts on the formed automotive fasteners to prevent the automotive fasteners from adhering to the upper die 3 and being deformed or damaged. The driving mechanism 5 drives the lower ejector pin mechanism 4 to act, which is used to eject the formed automotive fasteners from the forming cavity for demolding. The material taking mechanism 7 is used to transfer the demolded automotive fasteners from the position of the lower die 2 to the material guiding plate 8 for discharging, improving the convenience of discharging during the production of automotive fasteners and enhancing the production efficiency.

[0056] In this embodiment, as Figure 4 shown, the lower ejector pin mechanism 4 is arranged inside the base 1 and the lower die 2. The lower ejector pin mechanism 4 includes a lower ejector pin plate 401 arranged inside the base 1. A plurality of lower ejector pins 402 are fixedly connected to the top of the lower ejector pin plate 401. The base 1 and the lower die 2 are provided with lower ejector pin holes for the lower ejector pins 402 to pass through. The top ends of the lower ejector pins 402 pass through the lower ejector pin holes and are placed inside the forming cavity. A lower ejector pin return member is sleeved between the lower ejector pin plate 401 and the base 1 and outside the lower ejector pins 402. The lower ejector pin return member is preferably a helical spring. By the operation of the driving mechanism 5, the lower ejector pin plate 401 is driven to move longitudinally upward, so that the lower ejector pins 402 eject the formed automotive fasteners from the forming cavity for demolding. After the demolding is completed, through the action of the helical spring, it is used for the reset work of the lower ejector pin plate 401 and the lower ejector pins 402.

[0057] In this embodiment, the driving mechanism 5 is arranged on the base 1 and is used to drive the lower ejector mechanism 4 to lift and eject the formed automotive fastener from the lower die 2, and drive the unlocking component and the material taking mechanism 7 to act. The driving mechanism 5 includes a fixed seat 501 fixedly connected to the bottom of the lower ejector plate 401, a pushing block 502 slidably connected to the base 1, and a driving member 503 installed on the base 1. The driving member 503 is preferably a hydraulic cylinder, and the output end of the driving member 503 is fixedly connected to the pushing block 502. A limiting sliding groove 5011 is formed at the bottom of the fixed seat 501 along the moving direction of the pushing block 502. The width of the pushing block 502 is smaller than the width of the limiting sliding groove 5011. First inclined surfaces for mating sliding are provided on one side of the limiting sliding groove 5011 and the pushing block 502 that are close to each other. By operating the driving member 503 to push the pushing block 502 towards the fixed seat 501, the pushing block 502 is moved into the limiting sliding groove 5011. Through the mating sliding of the first inclined surface of the pushing block 502 and the first inclined surface of the limiting sliding groove 5011, the lifting of the fixed seat 501 is realized, so that the lower ejector plate 401 and the lower ejector 402 are driven by the fixed seat 501 to lift, and the formed automotive fastener is ejected from the forming cavity for demolding.

[0058] It should be noted that the pushing block 502 has a certain length. When the first inclined surface of the pushing block 502 contacts and slides with the first inclined surface of the limiting sliding groove 5011, the fixed seat 501 is lifted. When the horizontal plane at the top of the pushing block 502 contacts the horizontal plane of the limiting sliding groove 5011, the fixed seat 501 is maintained at the maximum lifting height position. In order to reduce the friction between the pushing block 502 and the fixed seat 501 and help the pushing block 502 lift better, a plurality of rollers are arranged on the first inclined surface and the horizontal plane at the top of the pushing block 502 to play a role in reducing friction.

[0059] In this embodiment, as Figure 8As shown, the upper ejector mechanism 6 is arranged inside the upper mold 3. The upper ejector mechanism 6 includes an upper ejector plate 601. An accommodation cavity 301 for accommodating the upper ejector plate 601 and allowing the upper ejector plate 601 to move longitudinally is formed inside the upper mold 3. A plurality of upper ejector pins 602 are fixedly connected to the bottom of the upper ejector plate 601. A plurality of upper ejector pin holes communicating with the accommodation cavity 301 are formed at the bottom of the upper mold 3. One end of the upper ejector pin 602 passes through the upper ejector pin hole. An upper ejector pin return member is sleeved outside the upper ejector pin 602 between the upper ejector pin 602 and the inner bottom end of the accommodation cavity 301. The upper ejector pin return member is preferably a helical spring. A locking component is arranged between the upper ejector plate 601 and the lower mold 2. The locking component is used to lock the position of the upper ejector pin 602 when the upper mold 3 and the lower mold 2 are clamped. The upper ejector mechanism 6 further includes an unlocking component. The unlocking component is used to release the locking effect between the upper mold 3 and the lower mold 2. By means of the arranged locking component, when the upper mold 3 and the lower mold 2 are clamped, the upper ejector plate 601 and the lower mold 2 are automatically locked and fixed. When the upper mold 3 and the lower mold 2 are opened, the upper mold 3 moves upward longitudinally. At this time, since the upper ejector plate 601 is fixed to the lower mold 2, the position of the upper ejector plate 601 does not change. The bottom end of the upper ejector plate 601 extends out of the upper ejector pin hole and abuts against the formed automotive fastener to avoid the problem of adhesion between the automotive fastener and the upper mold 3. When the upper ejector plate 601 moves to the maximum stroke in the accommodation cavity 301, the locking effect between the upper ejector plate 601 and the lower mold 2 is released through the unlocking component, and the upper ejector plate 601 and the upper ejector pin 602 are reset under the action of the helical spring for the next injection molding production.

[0060] In this embodiment, the upper ejector plate 601 and the accommodation cavity 301 are arranged in an annular structure, and the outer diameter and the inner diameter of the accommodation cavity 301 are both smaller than the outer diameter and the inner diameter of the molding cavity. The advantage of such a setting is that an injection port can be arranged on the upper mold 3 so that the injection port corresponds to the position of the molding cavity to realize injection molding of the molding cavity.

[0061] In this embodiment, as Figure 3 、 Figure 8 and Figure 9As shown, the locking component includes connecting rods 603 symmetrically and fixedly connected to both sides of the upper ejector plate 601. Through grooves 302 for the connecting rods 603 to pass through and move longitudinally are provided on both sides of the upper die 3. One end of the connecting rod 603 passes through the through groove 302 and is fixedly connected with a connecting block 604. An installation groove is provided inside the connecting block 604. An insertion block 605 is slidably connected inside the installation groove. A first reset member 606 is fixedly connected between one side of the insertion block 605 and the inner wall of the installation groove. The first reset member 606 is preferably a reset spring. A pulling block 607 is fixedly connected to the outside of the insertion block 605. The locking component further includes fixing blocks 608 fixedly connected to both sides of the lower die 2. The fixing blocks 608 correspond to the positions of the insertion blocks 605. A jack for the insertion block 605 to insert into is provided on the fixing blocks 608. A sliding second inclined surface is provided on one side of the insertion block 605 close to the fixing block 608. When the upper die 3 and the lower die 2 are closed, the insertion block 605 moves downward from top to bottom and contacts the fixing block 608. Through the inclined surface cooperation and sliding between the insertion block 605 and the fixing block 608, the insertion block 605 is pushed into the installation groove of the connecting block 604 and the first reset member 606 is compressed. When the insertion block 605 moves to the jack of the fixing block 608, under the action of the first reset member 606, the insertion block 605 is pushed into the jack of the fixing block 608, realizing the automatic locking and fixing of the upper ejector plate 601 and the lower die 2.

[0062] In this embodiment, as Figure 10 shown, the unlocking component includes a fixing rod 609 fixedly connected to one end of the pushing block 502. One end of the fixing rod 609 passes through the limit sliding groove 5011 and extends to the outside of the base 1 and is fixedly connected with a U-shaped pull rod 610. L-shaped pull rods 611 are fixedly connected to both ends of the U-shaped pull rod 610. The L-shaped pull rods 611 are placed outside the lower die 2 and correspond to the positions of the pulling blocks 607. By moving the pushing block 502 to drive the fixing rod 609 to move, the fixing rod 609 drives the U-shaped pull rod 610 and the L-shaped pull rods 611 to move horizontally synchronously, so that one end of the L-shaped pull rod 611 contacts the pulling block 607 on the insertion block 605 and drives the pulling block 607 to move. The insertion block 605 is pushed into the installation groove of the connecting block 604 through the pulling block 607, so as to disengage the insertion block 605 from the jack of the fixing block 608. After disengagement, under the action of the upper ejector reset member, the upper ejector plate 601 and the upper ejector 602 are reset. At this time, the connecting block 604 moves upward and resets synchronously with the upper ejector plate 601, making the pulling block 607 and the L-shaped pull rod 611 in a vertically misaligned state, which will not affect the continuous movement of the pushing block 502.

[0063] It should be noted that in the initial state, there is a certain distance between the pushing block 502 and the fixing seat 501, so that after the pushing block 502 drives the unlocking component to unlock the upper ejector plate 601 and the lower die 2 and the upper ejector plate 601 and the upper ejector 602 are reset, the pushing block 502 contacts the fixing seat 501 to drive the lower ejector mechanism 4 to act.

[0064] In this embodiment, the material guiding plate 8 is arranged on the lower die 2 and fixedly connected to the base 1. The material guiding plate 8 is inclined, so that when the formed automotive fasteners transferred in the material taking mechanism 7 fall, the formed automotive fasteners are conveyed and collected outside the die.

[0065] In this embodiment, as Figure 6 and Figure 11 shown, the material taking mechanism 7 is arranged on one side of the lower die 2 and at the position of the material guiding plate 8. The material taking mechanism 7 is used to feed the formed automotive fasteners from the lower die 2 to the discharge of the material guiding plate 8. The material taking mechanism 7 includes a baffle 701. Two bearing plates 702 are arranged on the side of the baffle 701 close to the lower die 2. The cross section of the bearing plate 702 is an L-shaped structure. Both the baffle 701 and the bearing plate 702 are located above the lower die 2. The material taking mechanism 7 further includes an expansion and reset assembly and a guiding and reset structure for driving the two bearing plates 702 to expand and reset. A guiding and reset structure is arranged between the baffle 701 and the base 1, and the guiding and reset structure is used to guide the bearing plate 702 to move horizontally above the lower die 2 and reset. After the lower ejector mechanism 4 ejects the formed automotive fasteners from the mold, the lower ejector mechanism 4 needs to eject the formed automotive fasteners out of the upper surface of the lower die 2. At this time, the pushing block 502 continues to move, and the horizontal plane at the top of the pushing block 502 contacts the horizontal plane of the limit sliding groove 5011. The fixed seat 501 maintains the maximum lifting height position, while the baffle 701 and the bearing plate 702 move horizontally under the action of the pushing block 502, so that the baffle 701 and the bearing plate 702 are placed outside the formed automotive fasteners. Due to the L-shaped design of the bearing plate 702, a part of the bearing plate 702 is located on the side of the automotive fastener, and the other part is located at the bottom of the formed automotive fastener for bearing the formed automotive fastener. The formed automotive fastener is placed in the space formed by the baffle 701 and the two bearing plates 702. Then the driving part 503 drives the pushing block 502 to reset, and drives the baffle 701 and the bearing plate 702 to reset under the action of the guiding and reset structure, driving the formed automotive fasteners to be transferred above the material guiding plate 8, and then expanding the two bearing plates 702 through the expansion and reset assembly, so that the formed automotive fasteners automatically fall onto the material guiding plate 8 for discharging.

[0066] In this embodiment, as Figure 11As shown, one end of the bearing plate 702 away from the baffle plate 701 is fixedly connected with an adapter plate 7021. A telescopic member 7022 is fixedly installed on the adapter plate 7021. The telescopic member 7022 is preferably a telescopic cylinder. The output end of the telescopic member 7022 faces the bearing plate 702 and is fixedly connected with a stopper 7023. An avoidance groove for the stopper 7023 to pass through is formed on the bearing plate 702. When the formed automotive fastener is placed in the space formed by the baffle plate 701 and the two bearing plates 702, the telescopic member 7022 works to drive the stopper 7023 to move out and extend into the adapter plate 7021, limiting and blocking the formed automotive fastener, so that the formed automotive fastener can move together with the reset baffle plate 701 and bearing plate 702.

[0067] In this embodiment, as Figure 6 and Figure 11 shown, a groove is formed along the length direction on one side of the baffle plate 701 where the bearing plate 702 is located. The expansion and reset assembly includes a pair of first guide rods 703 fixedly connected in the groove. The bearing plate 702 is slidably sleeved on the pair of first guide rods 703. A second reset member 704 is sleeved between the outer sides of the two bearing plates 702 facing away from each other and the inner wall of the groove and outside the first guide rods 703. The second reset member 704 is preferably a reset spring. A linkage rod 709 is rotatably connected to the bottom of the bearing plate 702. The ends of the two linkage rods 709 away from the bearing plate 702 are rotatably connected to the same linkage seat 710. A waist-shaped groove is formed along the length direction at the bottom of the baffle plate 701. One end of the linkage rod 709 is rotatably connected to the bearing plate 702 through a pin shaft passing through the waist-shaped groove. The expansion and reset assembly further includes a retaining baffle plate 712 fixedly connected to the base 1. The retaining baffle plate 712 corresponds to the position of the linkage seat 710. When the baffle plate 701 is reset above the material guiding plate 8, the linkage seat 710 contacts the retaining baffle plate 712 to fix the position, so as to push the bearing plate 702 to move and expand through the two linkage rods 709. The bearing plate 702 slides on the first guide rods 703, playing a role of limiting and guiding the first guide rods 703, improving the stability of the movement of the bearing plate 702, so that the formed automotive fastener passes through between the expanded two bearing plates 702 and falls onto the material guiding plate 8. When the baffle plate 701 and the bearing plate 702 move towards the lower die 2, the linkage seat 710 is separated from the retaining baffle plate 712, and under the action of the second reset member 704, the bearing plate 702 is pushed to move and reset for bearing the automotive fastener.

[0068] In this embodiment, the guide reset structure includes a support plate 705 fixedly connected to one side of the baffle 701, a pair of second guide rods 706 are fixedly connected to one side of the support plate 705 close to the base 1, a guide sleeve 708 is slidably sleeved on the outer side of the second guide rod 706, the guide sleeve 708 is fixedly connected to the outer wall of the base 1, a third reset member 707 is sleeved between the guide sleeve 708 and the support plate 705 and located on the outer side of the second guide rod 706, the third reset member 707 is preferably a reset spring, and the guide reset structure also includes a push plate 711 fixedly connected to the push block 502, the push plate 711 and the support plate 70 5, during the movement of the pushing block 502, the pushing plate 711 moves with the pushing block 502, so that the pushing plate 711 contacts the supporting plate 705, thereby pushing the supporting plate 705, the baffle plate 701 and the carrying plate 702 to move toward the lower mold 2. During the movement, the second guide rod 706 connected to the supporting plate 705 slides in the guide sleeve 708, plays a role of limiting guide, improves the stability of movement, and squeezes the third reset member 707. When resetting, the baffle plate 701 and the carrying plate 702 are pushed to reset through the action of the third reset member 707, so that the formed automotive fasteners can be transferred and discharged.

[0069] In this embodiment, the present invention also provides a method for processing a processing mold for producing automotive fasteners, comprising the following steps:

[0070] S1, the upper mold 3 is driven by the lifting device to descend and cooperate with the lower mold 2 to close the mold. At this time, under the action of the locking component, the upper ejector plate 601 is automatically locked and fixed with the lower mold 2;

[0071] Furthermore, in this step, when the upper mold 3 and the lower mold 2 are closed, the plug block 605 moves from top to bottom and contacts the fixed block 608. The plug block 605 and the inclined surface of the fixed block 608 cooperate and slide to push the plug block 605 into the installation groove of the connecting block 604, and squeeze the first reset member 606. When the plug block 605 moves to the socket of the fixed block 608, the first reset member 606 pushes the plug block 605 into the socket of the fixed block 608, thereby realizing automatic locking and fixation of the upper ejector plate 601 and the lower mold 2.

[0072] S2. Pour hot melt material into the injection port. The hot melt material will flow in the molding cavity. After the hot melt material is cooled, the automotive fastener will be formed inside the molding cavity.

[0073] S3, the upper mold 3 is driven by the lifting device to rise and open the mold with the lower mold 2. The upper ejector plate 601 is locked and fixed, so the position of the upper ejector plate 601 does not change. The bottom end of the upper ejector plate 601 extends from the upper ejector hole to resist the formed automobile fastener, so as to prevent the formed automobile fastener from adhering to the upper mold 3.

[0074] S4. The driving mechanism 5 operates to drive the unlocking assembly to act, releasing the locking function between the upper ejector plate 601 and the lower die 2. The upper ejector plate 601 and the upper ejector pins 602 are reset. Then, the pushing block 502 cooperates with the fixed seat 501 to drive the lower ejector plate 401 and the lower ejector pins 402 to lift, and the formed automotive fasteners are ejected from the forming cavity for demolding.

[0075] Further, in this step, the driving member 503 operates to push the pushing block 502 towards the fixed seat 501. The movement of the pushing block 502 drives the fixed rod 609 to move. The fixed rod 609 drives the U-shaped pull rod 610 and the L-shaped pull rod 611 to move horizontally synchronously, so that one end of the L-shaped pull rod 611 contacts the pulling block 607 on the insert block 605 and drives the pulling block 607 to move. The pulling block 607 pushes the insert block 605 into the installation groove of the connecting block 604, thereby disengaging the insert block 605 from the jack of the fixed block 608. After the disengagement, under the action of the upper ejector pin reset member, the upper ejector plate 601 and the upper ejector pins 602 are reset.

[0076] Then, the pushing block 502 moves into the limit sliding groove 5011 of the fixed seat 501. Through the cooperation and sliding of the first inclined surface of the pushing block 502 and the first inclined surface of the limit sliding groove 5011, the fixed seat 501 is lifted, and thus the fixed seat 501 drives the lower ejector plate 401 and the lower ejector pins 402 to lift, and the formed automotive fasteners are ejected from the forming cavity for demolding.

[0077] S5. After the lower ejector mechanism 4 demolds the formed automotive fasteners, the driving mechanism 5 continues to operate, driving the material taking mechanism 7 to move towards the lower die 2, carrying the formed automotive fasteners. Then, the driving mechanism 5 resets and drives the material taking mechanism 7 to reset, transferring the formed automotive fasteners to the guide plate 8 for discharging. At the same time, the lower ejector pins 402 are reset.

[0078] Further, in this step, after the lower ejector mechanism 4 demolds the formed automotive fastener, the pushing block 502 continues to move, so that the baffle plate 701 and the bearing plate 702 are placed outside the formed automotive fastener. A part of the bearing plate 702 is located on the side of the automotive fastener, and the other part is located at the bottom of the formed automotive fastener, for bearing the formed automotive fastener. The formed automotive fastener is placed in the space formed by the baffle plate 701 and the two bearing plates 702. By the operation of the telescopic member 7022, the stopper 7023 is driven to move out and extend into the connecting plate 7021 to limit and block the formed automotive fastener. Then, the driving member 503 drives the pushing block 502 to reset, so that the formed automotive fastener can move together with the reset baffle plate 701 and bearing plate 702. Under the action of the guiding and resetting structure, the baffle plate 701 and the bearing plate 702 are driven to reset. When the baffle plate 701 resets above the material guiding plate 8, the linkage seat 710 contacts and fixes the position with the retaining baffle plate 712. Thus, the two linkage rods 709 are used to push the bearing plate 702 to move and expand, so that the formed automotive fastener passes through between the two expanded bearing plates 702 and falls onto the material guiding plate 8, and the formed automotive fastener is conveyed and collected outside the mold.

[0079] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A processing mold for producing automotive fasteners, characterized in that: It comprises a base (1), a lower mold (2) fixedly connected to the top of the base (1), and an upper mold (3) located directly above the lower mold (2), wherein the upper mold (3) cooperates with the lower mold (2) to form a molding cavity for an automobile fastener; A lower ejector mechanism (4), the lower ejector mechanism (4) being arranged in the base (1) and the lower mold (2), the lower ejector mechanism (4) comprising a lower ejector plate (401) arranged inside the base (1); An upper ejector mechanism (6), the upper ejector mechanism (6) is arranged inside the upper mold (3), the upper ejector mechanism (6) comprises an upper ejector plate (601), a receiving cavity (301) is provided inside the upper mold (3) for receiving the upper ejector plate (601) and allowing the upper ejector plate (601) to move longitudinally, a locking component is arranged between the upper ejector plate (601) and the lower mold (2), the locking component is used to lock the position of the upper ejector (602) when the upper mold (3) and the lower mold (2) are closed, and the upper ejector mechanism (6) also comprises a unlocking component, the unlocking component is used to release the locking effect between the upper mold (3) and the lower mold (2); A material guide plate (8), wherein the material guide plate (8) is disposed on the lower mold (2) and is fixedly connected to the base (1); A material taking mechanism (7), the material taking mechanism (7) is arranged on one side of the lower mold (2) and is placed on the material guide plate (8), the material taking mechanism (7) is used to feed the formed automobile fasteners from the lower mold (2) to the material guide plate (8) for discharging, the material taking mechanism (7) comprises a baffle plate (701), two bearing plates (702) are arranged on the side of the baffle plate (701) close to the lower mold (2), the cross section of the bearing plate (702) is an L-shaped structure, the baffle plate (701) and the bearing plate (702) are both located above the lower mold (2), the material taking mechanism (7) also comprises an expansion and reset assembly and a guide reset structure, which are used to drive the two bearing plates (702) to expand and reset, and a guide reset structure is arranged between the baffle plate (701) and the base (1), and the guide reset structure is used to guide the bearing plate (702) to move horizontally to the top of the lower mold (2) and reset; A driving mechanism (5) is arranged on the base (1) and is used to drive the lower ejector mechanism (4) to lift and demould the molded automobile fastener from the lower mold (2), and drive the unlocking component and the material taking mechanism (7) to operate.

2. A processing mold for producing automotive fasteners according to claim 1, characterized in that: A plurality of lower ejector pins (402) are fixedly connected to the top of the lower ejector pin plate (401); lower ejector pin holes for the lower ejector pins (402) to pass through are provided on the base (1) and the lower mold (2); the top ends of the lower ejector pins (402) pass through the lower ejector pin holes and are placed in the molding cavity; and a lower ejector pin resetting member is sleeved between the lower ejector pin plate (401) and the base (1) and located on the outer sides of the lower ejector pins (402); A plurality of upper ejector pins (602) are fixedly connected to the bottom of the upper ejector pin plate (601); a plurality of upper ejector pin holes communicating with the accommodating cavity (301) are opened at the bottom of the upper mold (3); one end of the upper ejector pin (602) passes through the upper ejector pin hole; an upper ejector pin reset member is sleeved between the upper ejector pin (602) and the bottom end of the accommodating cavity (301) and located on the outside of the upper ejector pin (602).

3. A processing mold for producing automotive fasteners according to claim 2, characterized in that: The driving mechanism (5) comprises a fixed seat (501) fixedly connected to the bottom of the lower ejector plate (401), a pushing block (502) slidably connected to the base (1), and a driving member (503) mounted on the base (1); an output end of the driving member (503) is fixedly connected to the pushing block (502); a limiting sliding groove (5011) is provided at the bottom of the fixed seat (501) along the moving direction of the pushing block (502); and a first inclined surface for matching sliding is provided on the side of the limiting sliding groove (5011) close to the pushing block (502).

4. A processing die for producing automotive fasteners according to claim 2, characterized in that: The locking assembly comprises connecting rods (603) symmetrically fixedly connected to both sides of the upper ejector plate (601); both sides of the upper mold (3) are provided with through slots (302) for the connecting rods (603) to pass through and move longitudinally; one end of the connecting rod (603) passes through the through slot (302) and is fixedly connected to a connecting block (604); a mounting slot is provided inside the connecting block (604); an insert block (605) is slidably connected in the mounting slot; one side of the insert block (605) is connected to the mounting A first reset member (606) is fixedly connected between the inner walls of the groove, a pulling block (607) is fixedly connected to the outer side of the plug block (605), and the locking assembly also includes a fixed block (608) fixedly connected to both sides of the lower mold (2), the fixed block (608) corresponds to the position of the plug block (605), a plug hole for inserting the plug block (605) is provided on the fixed block (608), and a second sliding inclined surface is provided on the side of the plug block (605) close to the fixed block (608).

5. A processing die for producing automotive fasteners according to claim 3, characterized in that: The unlocking assembly comprises a fixed rod (609) fixedly connected to one end of the pushing block (502), one end of the fixed rod (609) passes through the limiting slide groove (5011) and extends to the outside of the base (1) and is fixedly connected to a U-shaped pull rod (610), both ends of the U-shaped pull rod (610) are fixedly connected to L-shaped pull rods (611), and the L-shaped pull rod (611) is placed on the outside of the lower mold (2) and corresponds to the position of the pulling block (607).

6. A processing mold for producing automotive fasteners according to claim 3, characterized in that: The baffle (701) is located on one side of the carrier plate (702) and is provided with a groove along the length direction. The expansion reset assembly includes a pair of first guide rods (703) fixedly connected in the groove. The carrier plate (702) is slidably sleeved on the pair of first guide rods (703). A second reset member (704) is sleeved between the opposite sides of the two carrier plates (702) and the inner wall of the groove and located on the outside of the first guide rod (703). The bottom of the carrier plate (702) is rotatably connected to a linkage rod (709). One end of the two linkage rods (709) away from the bearing plate (702) is rotatably connected to the same linkage seat (710); one end of the bearing plate (702) away from the baffle plate (701) is fixedly connected to a connecting plate (7021); a telescopic member (7022) is fixedly installed on the connecting plate (7021); an output end of the telescopic member (7022) faces the bearing plate (702) and is fixedly connected to a baffle block (7023); and an avoidance groove for the baffle block (7023) to pass through is opened on the bearing plate (702).

7. A processing die for producing automotive fasteners according to claim 6, characterized in that: The expansion and reduction assembly further comprises a retaining baffle (712) fixedly connected to the base (1), and the retaining baffle (712) corresponds in position to the linkage seat (710).

8. The processing mold for producing automotive fasteners according to claim 5, characterized in that: The guide reset structure comprises a support plate (705) fixedly connected to one side of the baffle (701); a pair of second guide rods (706) are fixedly connected to the side of the support plate (705) close to the base (1); a guide sleeve (708) is slidably sleeved on the outer side of the second guide rod (706); the guide sleeve (708) is fixedly connected to the outer wall of the base (1); and a third reset member (707) is sleeved between the guide sleeve (708) and the support plate (705) and located on the outer side of the second guide rod (706).

9. A processing die for producing automotive fasteners according to claim 8, characterized in that: The guide reset structure further comprises a pushing plate (711) fixedly connected to the pushing block (502), and the pushing plate (711) corresponds in position to the supporting plate (705).

10. A method for processing a processing mold for producing automotive fasteners according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The upper mold (3) is driven by the lifting device to descend and cooperate with the lower mold (2) to close the mold. At this time, under the action of the locking component, the upper ejector plate (601) and the lower mold (2) are automatically locked and fixed; S2. Pour hot melt material into the injection port. The hot melt material will flow in the molding cavity. After the hot melt material is cooled, the automotive fastener will be formed inside the molding cavity. S3, the upper mold (3) is driven by the lifting device to rise and open the mold with the lower mold (2), and the upper ejector plate (601) is locked and fixed, so that the position of the upper ejector plate (601) does not change, and the bottom end of the upper ejector plate (601) extends from the upper ejector hole to press against the molded automobile fastener, thereby preventing the molded automobile fastener from adhering to the upper mold (3); S4, the driving mechanism (5) works to push the unlocking assembly to release the locking effect between the upper ejector plate (601) and the lower mold (2), and the upper ejector plate (601) and the upper ejector pin (602) are reset. Then the pushing block (502) cooperates with the fixing seat (501) to drive the lower ejector plate (401) and the lower ejector pin (402) to be lifted, so that the molded automotive fastener is ejected from the molding cavity; S5, after the lower ejector pin mechanism (4) demolds the molded automobile fastener, the driving mechanism (5) continues to work, driving the material taking mechanism (7) to move toward the lower mold (2) to carry the molded automobile fastener, and then the driving mechanism (5) resets to drive the material taking mechanism (7) to reset, and transfers the molded automobile fastener to the guide plate (8) for unloading, and at the same time, the lower ejector pin (402) resets.

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