Terminal injection mold

Abstract

The utility model relates to the technical field of injection molding processing, in particular to a terminal injection mold which comprises an upper mold and a lower mold, the upper mold comprises an upper mold base, the lower mold comprises a lower mold base, a bottom clamping groove is formed in the lower mold base, and the bottom clamping groove is used for installing a fixing device; the fixing device comprises fixing frames clamped with the bottom clamping grooves, a pair of moving plates are installed between the fixing frames through sliding rods, metal terminals are clamped on the inner walls of the moving plates, a lower pressing plate is fixed to the bottom of the lower die base, an upper pressing plate is fixed to the upper die base, and a partition plate is fixed to the upper pressing plate. A side face push rod is fixed to the lower die base, a clamping hook is driven by the output end of the side face push rod, and the clamping hook is clamped to a connecting lug of the movable plate. According to the utility model, batch feeding and discharging of metal terminals and terminal workpieces can be realized by using the fixing device, so that time is saved, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding processing technical field, concretely is a terminal injection mold. BACKGROUND

[0002] The terminal is the wiring terminal for transmitting electric signal or conducting electricity in electrical connection, in order to guarantee the normal work of terminal, the terminal is generally made of metal terminal and the plastic wrapped in the metal terminal outside. Part of metal terminal is installed in the inside of plastic shell through screw, and another part of metal terminal is directly wrapped with plastic on the outside of metal terminal through injection molding.

[0003] The patent with publication number CN21864175U provides a terminal injection mold, which can fix terminals in batches by using inner mold. However, the device still has the following shortcomings:

[0004] 1. The fixation of the terminal is unstable, which makes the terminal prone to deformation by being squeezed by injection material during injection molding, making it difficult to guarantee the effect of injection molding;

[0005] 2. The opening of the metal terminal generally faces the side, which requires side support to close the opening, and the device cannot provide side support or remove the terminal from the side.

[0006] Therefore, it is difficult to meet the demand of batch production of existing terminals. In view of this, the present application provides a terminal injection mold. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a terminal injection mold to solve the problems raised in the above background.

[0008] The utility model is realized through the following technical solutions: a terminal injection mold, comprising an upper mold and a lower mold, the upper mold comprises an upper mold base, and the lower mold comprises a lower mold base matched with the upper mold base, a bottom clamping groove is arranged in the lower mold base, and the bottom clamping groove is used for installing a fixing device;

[0009] The fixing device comprises a pair of fixing frames clamped with the bottom clamping groove, and a pair of moving plates are installed between the pair of fixing frames through a sliding rod, at least two metal terminals are clamped and installed on the inner wall of the moving plate through a clamping block, a lower pressing plate is fixed at the bottom of the lower mold base and forms an injection molding cavity together with the fixing device, an upper pressing plate is fixed on the upper mold base and forms an injection molding cavity together with the fixing device, a partition plate is fixed on the upper pressing plate, and the partition plate is used for dividing the injection molding cavity into unit cavities with the same number of metal terminals and allowing each metal terminal to be independent of each other;

[0010] The lower die seat is fixed with a side push rod, and the output end of the side push rod is driven with a hook, the hook is clamped on a connecting lug which is integrally formed with the moving plate, and the unit cavity is formed into an injection molding shell by the injection molding flow channel in the upper die seat to the outside of the metal terminal to make the terminal workpiece.

[0011] Optionally, the bottom of the lower die seat is fixedly installed with a bottom push rod through bolts, and the output end of the bottom push rod is installed with a sliding plate, the sliding plate is slidingly installed with the bottom of the lower die seat, and the sliding plate is fixedly installed with a ejector pin for ejecting the fixing device and the terminal workpiece from the bottom clamping groove.

[0012] Optionally, the upper and lower ends of the injection molding shell are provided with limiting clamping grooves, the bottom of the upper pressing plate is integrally formed with a top clamping table corresponding to the limiting clamping groove, and the lower pressing plate is integrally formed with a bottom clamping table corresponding to the limiting clamping groove.

[0013] Optionally, the fixing frame and the moving plate are installed with a compression spring for pushing the moving plate to move along the sliding rod, and the moving plate is fixedly installed with a handle for facilitating the operator to take out the fixing device from the bottom clamping groove.

[0014] Optionally, the injection molding shell and the metal terminal are provided with fixing holes, and the clamping block is provided with a matching hole corresponding to the fixing hole, and the upper pressing plate is provided with a column type core for inserting into the fixing hole and the matching hole to fix the metal terminal.

[0015] Optionally, the bottom clamping groove is fixedly installed with a guide column, and the fixing frame is provided with a guide hole slidingly matched with the guide column, and the top of the guide column is provided with a chamfer or a spherical top protrusion for facilitating the guide column to slide into the guide hole.

[0016] Optionally, the upper die seat is provided with an injection port connected with an external injection molding machine, and the bottom of the injection port is connected with the injection molding flow channel.

[0017] Compared with the prior art, the terminal injection mold has the beneficial effects that:

[0018] 1. The terminal injection mold can use the fixing device to realize batch feeding and discharging of the metal terminal and the terminal workpiece, thereby saving time and improving production efficiency.

[0019] 2. The fixing device supports the metal terminal with the opening facing the side, which not only avoids the injection material from entering the terminal opening, but also effectively fixes the metal terminal to prevent deflection.

[0020] 3. The fixing device takes out the terminal from the side, which can quickly take out the terminal workpiece with the opening facing the side, and therefore can better adapt to the processing of such terminal workpieces. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is structure schematic view of the utility model;

[0022] Figure 2 It is structure side view of the utility model;

[0023] Figure 3 It is structure sectional view of the utility model;

[0024] Figure 4 It is structure schematic view of the utility mold of the utility model;

[0025] Figure 5 It is installation schematic view of the lower mold and fixing device of the utility model;

[0026] Figure 6 It is structure schematic view of the lower mold of the utility model;

[0027] Figure 7 It is structure schematic view of the fixing device of the utility model;

[0028] Figure 8 It is structure schematic view of the terminal workpiece of the utility model;

[0029] Figure 9 It is installation schematic view of the thimble of the utility model.

[0030] In the drawing: 1, injection molding mouth, 2, terminal workpiece, 201, limit card slot, 202, injection molding shell, 203, fixed hole, 204, metal terminal, 3, fixing device, 301, card block, 302, extrusion spring, 303, sliding rod, 304, connecting lug, 305, handle, 306, moving plate, 307, cooperation hole, 308, guide hole, 309, fixed frame, 4, upper mold, 401, top clamping platform, 402, injection molding runner, 403, column type core, 404, upper pressing plate, 405, partition plate, 406, upper mold base, 5, lower mold, 501, lower pressing plate, 502, bottom clamping platform, 503, lower mold base, 504, guide column, 505, bottom card slot, 6, card hook, 7, side push rod, 8, thimble, 9, sliding plate, 10, bottom push rod. DETAILED DESCRIPTION

[0031] In order to make the purpose of the utility model; technical scheme carries out clearly; complete description, and more clearly and clearly sets forth its advantages, the following combining with the drawings of the utility model embodiment carries out further detailed explanation. It should be understood that the specific embodiments described herein are part of the embodiments of the utility model, rather than all embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the scope of the utility model protection.

[0032] Embodiment one: please refer to Figures 1 to 8 The utility model provides a kind of terminal injection mold, including upper die 4 and lower die 5, upper die 4 includes upper die holder 406, and lower die 5 includes the lower die holder 503 cooperation with upper die holder 406, bottom clamping groove 505 is provided in lower die holder 503, and bottom clamping groove 505 is used to install fixing device 3, fixing device 3 includes a pair of fixed frame 309 with bottom clamping groove 505 clamping, and a pair of moving plate 306 is installed between the pair of fixed frame 309 by slide bar 303, the inner wall of moving plate 306 is clampedly installed at least two metal terminals 204 by clamping block 301, and the bottom of lower die holder 503 is fixed with the lower pressing plate 501 that is formed with the injection cavity with fixing device 3, upper die holder 406 is fixed with the upper pressing plate 404 that is formed with the injection cavity with fixing device 3, and upper pressing plate 404 is fixed with partition plate 405, partition plate 405 is used to separate the injection cavity into the unit cavity with the same number of metal terminals 204 and enable each metal terminal 204 to be independent of each other, side push rod 7 is fixed on lower die holder 503, and the output end of side push rod 7 is driven with clamping hook 6, clamping hook 6 clamps on the connecting lug 304 formed integrally with moving plate 306, and unit cavity is formed by the injection of the outside of metal terminal 204 through the injection runner 402 located in upper die holder 406 to form injection housing 202 so as to be made into terminal workpiece 2, injection port 1 is provided on upper die holder 406 and connected with external injection machine, and the bottom of injection port 1 is connected with injection runner 402.

[0033] Please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 9 The bottom of lower die holder 503 is fixed with bottom push rod 10 by bolt, and the output end of bottom push rod 10 is installed with sliding plate 9, and sliding plate 9 is slidingly installed with the bottom of lower die holder 503, and ejector pin 8 is fixedly installed on sliding plate 9 for ejecting fixing device 3 and terminal workpiece 2 from bottom clamping groove 505.

[0034] Please refer to Figure 4 、 Figure 5 、 Figure 6 And Figure 8The upper and lower ends of the injection-molded shell 202 are provided with limiting clamping grooves 201, the bottom of the upper pressing plate 404 is integrally formed with a top clamping table 401 corresponding to the limiting clamping grooves 201, and the bottom of the lower pressing plate 501 is integrally formed with a bottom clamping table 502 corresponding to the limiting clamping grooves 201.

[0035] Working principle: when the mold is used, the lower mold 5 is fixed, and the upper mold 4 is installed on the external push rod, so as to realize mold opening and closing by the push rod. First, the workers prepare a plurality of fixing devices 3 and fix the metal terminals 204 and the clamping blocks 301 in each fixing device 3 in advance to form pretreated workpieces for standby, then in the mold opening stage, the terminal workpiece 2 and the fixing device 3 that have been processed are taken out as a whole, and then the pretreated workpiece is replaced, so that a plurality of metal terminals 204 waiting for processing can be placed in the mold in batches, and a plurality of processed terminal workpieces 2 can be taken out in batches, greatly shortening the waiting time of feeding and discharging, thereby improving the processing efficiency. When the fixing device 3 is correctly placed in the bottom clamping groove 505, the clamping hook 6 will be clamped with the connecting lug 304, at this time the side push rod 7 will drive the moving plate 306 to clamp inward, so that the moving plate 306 can be firmly fixed with the fixing frame 309, then the upper mold 4 is pressed on the lower mold 5 by the external push rod, and the moving plate 306, the fixing frame 309, the upper pressing plate 404 and the lower pressing plate 501 together form a cavity for injection molding, and the cavity can be divided into unit cavities by the partition plate 405, so that each unit cavity can independently inject and mold the outer part of the single metal terminal 204 to form the injection molding shell 202. Of course, if the partition plate 405 is cancelled, a plurality of metal terminals 204 can be directly injection molded to form a terminal row. When the upper mold 4 and the lower mold 5 are closed, the columnar core 403 is inserted into the fixing hole 203 and the matching hole 307, so as to further fix the clamping block 301 and the metal terminal 204 by the columnar core 403, avoid the metal terminal 204 from being offset by the extrusion of the injection material in the subsequent injection molding process, effectively guarantee the injection precision, and the fixing hole 203 formed on the injection molding shell 202 can be machined into a screw hole in the subsequent process, which is used for fixing the external terminal and the metal terminal 204 by screws, facilitating the use of the terminal workpiece 2. Of course, the terminal workpiece 2 shown in the utility model is only used for functional demonstration when the mold is processed, and the structure of the clamping block 301 and the structure of the columnar core 403 can be adaptively changed according to the shape of the terminal workpiece 2 to be processed in actual use.After the upper mold 4 and the lower mold 5 are closed, the external injection molding machine provides injection material to the injection flow channel 402 through the injection port 1, and then the injection material is distributed to each unit cavity through the injection flow channel 402, so as to form the injection housing 202 on the surface of each metal terminal 204, and then the metal terminal 204 and the injection housing 202 are cooled together to form the terminal workpiece 2. At this time, the top clamping table 401 and the bottom clamping table 502 are clamped on the limiting clamping groove 201, and then the upper mold 4 is opened upward by the external push rod to complete the mold opening. Then the side push rod 7 pulls the moving plate 306 outward to the specified position through the clamping hook 6. Since the middle of the terminal workpiece 2 is limited by the bottom clamping table 502 and cannot move, the connection between the clamping block 301 and the metal terminal 204 is loose at this time, which facilitates the subsequent operator to take out the terminal workpiece 2 from the moving plate 306. However, the clamping block 301 does not completely separate from the metal terminal 204 and can still ensure that the terminal workpiece 2 and the fixing device 3 can be taken out as a whole. Then the bottom push rod 10 drives the ejector pin 8 to upwardly eject the fixing device 3 and each terminal workpiece 2 as a whole, and then the operator takes out the fixing device 3 and the terminal workpiece 2 from the bottom clamping groove 505 and replaces the new pretreatment workpiece to perform the next round of injection molding processing. The terminal workpiece 2 taken out will be further taken off from the fixing device 3 by the worker, and then these fixing devices 3 are fixed with new metal terminals 204 and made into pretreatment workpieces waiting for processing. In this way, the metal terminal 204 can be quickly injection molded. The fixing device 3 supports the metal terminal 204 from the side, which not only can close the opening of the metal terminal 204 to prevent the injection material from entering, but also can take out the metal terminal 204 from the side, thereby facilitating the quick disassembly of the terminal workpiece 2 from the fixing device 3, and also can process more types of terminals.

[0036] Example two: please refer to Figure 5 、 Figure 6 and Figure 7On the basis of the first embodiment, the fixed frame 309 and the moving plate 306 are installed with a pressing spring 302 for pushing the moving plate 306 to move along the slide rod 303, and the moving plate 306 is fixedly installed with a handle 305 for facilitating the operator to take out the fixing device 3 from the bottom clamping groove 505. The pressing spring 302 has two functions: one is to guarantee the moving plate 306 to always press the metal terminal 204 by using the pressing force provided by the pressing spring 302 when the pre-processing workpiece is made, so as to avoid the metal terminal 204 from falling off; the other is to avoid the clamping block 301 from being separated from the terminal workpiece 2 in advance by using the pressing force provided by the pressing spring 302 when the operator takes out the fixing device 3 from the bottom clamping groove 505 after the mold is opened, so as to facilitate the taking out of the terminal workpiece 2. The bottom clamping groove 505 is fixedly installed with a guide column 504, and the fixed frame 309 is provided with a guide hole 308 which is in sliding cooperation with the guide column 504, and the top of the guide column 504 is provided with a chamfer or a spherical top protrusion for facilitating the guide column 504 to slide into the guide hole 308. The operator only needs to correctly insert the guide column 504 into the guide hole 308, and then the fixing device 3 can be quickly pressed into the bottom clamping groove 505, so as to accelerate the operation speed and improve the production efficiency.

[0037] Although the above describes the specific embodiments of the present application in order to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments, and all the application creations using the concept of the present application are within the protection scope of the present application as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims.

Claims

1. A terminal injection mold comprising an upper mold (4) and a lower mold (5), characterized in that: the upper mold (4) comprises an upper mold base (406), and the lower mold (5) comprises a lower mold base (503) matched with the upper mold base (406), a bottom clamping groove (505) is arranged in the lower mold base (503), and the bottom clamping groove (505) is used for installing a fixing device (3); the fixing device (3) comprises a pair of fixing frames (309) clamped with the bottom clamping groove (505), and a pair of moving plates (306) are installed between the pair of fixing frames (309) through a slide rod (303), at least two metal terminals (204) are clamped and installed on the inner wall of the moving plate (306) through a clamping block (301), a lower pressing plate (501) is fixed at the bottom of the lower mold base (503) and cooperates with the fixing device (3) to form an injection cavity, an upper pressing plate (404) is fixed on the upper mold base (406) and cooperates with the fixing device (3) to form the injection cavity, and a partition plate (405) is fixed on the upper pressing plate (404), the partition plate (405) is used for dividing the injection cavity into single unit cavities with the same number as the metal terminals (204) and enabling each metal terminal (204) to be independent of each other; a side pushing rod (7) is fixed on the lower mold base (503), a clamping hook (6) is driven at the output end of the side pushing rod (7), the clamping hook (6) is clamped on a connecting lug (304) integrally formed with the moving plate (306), and the single unit cavities are formed into an injection shell (202) by injecting the outside of the metal terminal (204) through an injection runner (402) in the upper mold base (406) to make a terminal workpiece (2).

2. A terminal injection mold according to claim 1, characterized in that: a bottom pushing rod (10) is fixed and installed at the bottom of the lower mold base (503) through bolts, a sliding plate (9) is installed at the output end of the bottom pushing rod (10), the sliding plate (9) is slidingly installed with the bottom of the lower mold base (503), and a ejector pin (8) for ejecting the fixing device (3) and the terminal workpiece (2) from the bottom clamping groove (505) is fixed and installed on the sliding plate (9).

3. A terminal injection mold according to claim 1, characterized in that: limiting clamping grooves (201) are arranged at the upper and lower ends of the injection shell (202), a top clamping table (401) corresponding to the limiting clamping groove (201) is integrally formed at the bottom of the upper pressing plate (404), and a bottom clamping table (502) corresponding to the limiting clamping groove (201) is integrally formed on the lower pressing plate (501).

4. The terminal injection mold of claim 1, wherein: a pressing spring (302) for pushing the moving plate (306) to move along the slide rod (303) is installed between the fixing frame (309) and the moving plate (306), and a handle (305) for facilitating an operator to take out the fixing device (3) from the bottom clamping groove (505) is fixed and installed on the moving plate (306).

5. The terminal injection mold of claim 1, wherein: The injection shell (202) and metal terminal (204) are provided with fixing holes (203), and the clamping block (301) is provided with corresponding matching holes (307), the upper pressing plate (404) is provided with columnar cores (403) for inserting into the fixing holes (203) and matching holes (307) to fix the metal terminal (204).

6. The terminal injection mold of claim 1, wherein: The bottom clamping slot (505) is fixedly provided with a guide column (504), and the fixing frame (309) is provided with a guide hole (308) slidably matched with the guide column (504), and the top of the guide column (504) is provided with a chamfer or a spherical top protrusion for facilitating the guide column (504) to slide into the guide hole (308).

7. The terminal injection mold of claim 1, wherein: The upper die seat (406) is provided with an injection port (1) connected with an external injection machine, and the bottom of the injection port (1) is connected with an injection runner (402).

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