Injection mold for plastic battery cover for automobile

By introducing a scraping device into the injection mold, the problem of reduced smoothness and precision caused by mold residue was solved, the cleanliness and precision inside the mold were improved, and the product qualification rate was increased.

CN223777655UActive Publication Date: 2026-01-09SUZHOU YOUYILI PRECISION MANUFACTURING CO LTD
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Patent Information

Application Number
CN202520196399.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-01-09
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Existing automotive plastic battery cover injection molds are prone to leaving plastic residues after prolonged use, which leads to a decrease in the smoothness and precision of the mold interior and affects the product qualification rate.

Method used

An injection mold with a scraping device was designed. The screw rod driven by the motor drives the screw block to lift and lower, realizing the lifting of the upper and lower molds. It is equipped with a scraper to scrape the plastic residue on the inner wall of the mold. At the same time, the electric telescopic rod drives the scraper to move left and right to further remove the residue.

Benefits of technology

It improves the smoothness and precision of the mold's interior, reduces product defects, and increases the product qualification rate.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223777655U_ABST
    Figure CN223777655U_ABST
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Abstract

The utility model discloses an automobile plastic battery cover injection mold which comprises a base, a box body is fixedly installed on the left side of the top of the base, a motor is fixedly installed on the top of the box body, a threaded rod is fixedly installed at the output end of the motor, and threaded blocks are in threaded connection with the outer portion of the threaded rod and close to the upper end and the lower end of the threaded rod. And the right side of the threaded block is fixedly connected with an upper mold and a lower mold through a first connecting rod and a second connecting rod, L-shaped rods are fixedly installed on the right side of the box body and close to the upper side and the lower side of the box body, and the other ends of the L-shaped rods penetrate into the upper mold and the lower mold to be fixedly connected with first scraping plates. According to the utility model, through the matching of the structures, plastic residues attached to the interior of the mold can be scraped, so that the smoothness and the precision of the interior of the mold can be ensured, flaws occurring in the production process of products can be reduced, and the qualification rate of the products can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile plastic battery cover processing, specifically to a kind of injection mould of automobile plastic battery cover. BACKGROUND

[0002] Automobile plastic battery cover is an important part of automobile battery, usually made of plastic material, between the positive and negative of battery, it plays the role of isolation, can prevent battery short circuit, leakage, and under the action of external environment, it can also be heat insulation, waterproof, shock absorption, thereby protecting battery and prolonging its service life, automobile plastic battery cover is part of battery shell, it is crucial to ensure the safety and stability of battery, and automobile plastic battery cover needs to use injection mould to process it, the prior art with publication number CN221793689U discloses a kind of injection mould of automobile plastic product, when carrying out injection molding process, by the cooperation of fastening rod and fastening plate, the mold base can be tightly positioned when carrying out injection molding process, prevent the deviation of mold bin when working, affect the quality of product, cause the waste of raw material, but the injection mould is easy to remain plastic residue in the process of long time use, thereby it can cause the smoothness and precision of mould interior to drop, in turn it can reduce the qualified rate of product, bring certain adverse effect to actual use, therefore need to be improved. UTILITY MODEL CONTENTS

[0003] The utility model is to provide a kind of injection mould of automobile plastic battery cover, the scraping device that it possesses realizes the plastic residue attached to the inside of mould to be scraped, to ensure the smoothness and precision of mould interior, in turn it can reduce the flaw that appears in the production process of product, improve the qualified rate of product, bring certain beneficial effect to actual use, solve the problems proposed in above background technique.

[0004] In order to achieve the above object, the utility model provides following technical scheme: A injection mold for plastic battery cover of car, including base, the top left side of base is fixedly installed with box, the top of box is fixedly installed with motor, the output of motor is fixedly installed with threaded rod and is set with opposite thread groove on threaded rod, the outside of threaded rod and near its upper and lower both ends are screwd with threaded block, the right side of threaded block of upside is fixedly installed with first connecting rod, the other end of first connecting rod is fixedly connected with upper mould and is connected with injection tube in front side of upper mould and passes through, the right side of threaded block of downside is fixedly installed with second connecting rod, the other end of second connecting rod is fixedly connected with lower mould and passes through box, the right side of box and near its upper and lower both sides are fixedly installed with L-shaped rod, the other end of L-shaped rod is fixedly connected with first scraper in the inside of upper mould and lower mould, the top right side of base is fixedly installed with support plate, the left side of support plate is fixedly installed with electric telescopic rod, the other end of electric telescopic rod is fixedly installed with second scraper.

[0005] Preferably, the left side of the threaded block is fixedly installed with a sliding block, the left side of the inner wall of the box is fixedly installed with a sliding groove, and the sliding block is in sliding connection with the sliding groove.

[0006] Preferably, the right side of the threaded block is fixedly installed with an inclined support rod, and the other end of the inclined support rod is fixedly connected with the top of the upper mold and the bottom of the lower mold, respectively.

[0007] Preferably, the left side of the threaded block is fixedly installed with a clamping groove, the left side of the box is fixedly installed with a hydraulic rod, the other end of the hydraulic rod is fixedly connected with a clamping block in the inside of the box, and the clamping block is in mutual clamping connection with the clamping groove.

[0008] Preferably, the bottom of the upper mold and the top of the lower mold are fixedly installed with a sealing strip, and the sealing strip is made of polyvinyl chloride.

[0009] Preferably, the outer side of the first scraper and the upper and lower sides of the second scraper are fixedly installed with a scraping strip, and the scraping strip is made of copper alloy.

[0010] Preferably, the four corners of the bottom of the upper mold are fixedly installed with guide rods, the four corners of the top of the lower mold are provided with guide holes, and the guide holes and the guide rods are in sliding connection.

[0011] Compared with the prior art, the motor starting can drive the threaded rod to rotate, the threaded rod can drive the threaded block to lift, the threaded block can drive the upper die and the lower die to lift, the first scraper can scrape off the plastic residues attached to the inner wall of the upper die and the lower die at the same time of the upper die and the lower die lifting, so that the smoothness and precision of the die interior can be ensured, and then the defects occurring in the product production process can be reduced, and the qualified rate of the product can be improved. The electric telescopic rod starting can drive the second scraper to move left and right, the second scraper moving left and right can scrape off the plastic residues attached to the first scraper, so that the smoothness and precision of the die interior can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0013] Figure 2 It is a box internal structure schematic view of the utility model;

[0014] Figure 3 It is an upper die and lower die connecting structure schematic view of the utility model;

[0015] Figure 4 It is a lower die internal structure schematic view of the utility model.

[0016] In the drawing: 1, base; 2, box; 3, motor; 4, threaded rod; 5, threaded block; 6, first connecting rod; 7, upper die; 8, second connecting rod; 9, lower die; 10, L-shaped rod; 11, first scraper; 12, electric telescopic rod; 13, second scraper; 14, sliding block; 15, sliding groove; 16, inclined strut; 17, clamping groove; 18, hydraulic rod; 19, clamping block; 20, sealing strip; 21, scraping strip; 22, guide rod; 23, guide hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Embodiment 1, please refer to Figures 1 to 4The utility model provides a technical scheme: a injection mold of plastic battery cover for car, including base 1, the top left side fixed mounting of base 1 has box 2, the top fixed mounting of box 2 has motor 3, the output fixed mounting of motor 3 has screw rod 4 and is set up opposite screw groove on screw rod 4, the outside of screw rod 4 and close to its upper and lower both ends are connected with screw block 5, the right side fixed mounting of upper screw block 5 has first connecting rod 6, and the other end of first connecting rod 6 is connected with upper mould 7 and is connected with injection tube in the front side of upper mould 7 in through, the right side fixed mounting of lower screw block 5 has second connecting rod 8, and the other end of second connecting rod 8 is connected with lower mould 9 and is connected with injection tube in the front side of lower mould 9 in through, the right side fixed mounting of box 2 and close to its upper and lower both sides has L shaped rod 10, and the other end of L shaped rod 10 is connected with first scraper 11 in the inside of upper mould 7 and lower mould 9, the top right side fixed mounting of base 1 has support plate, and the left side fixed mounting of support plate has motorized telescopic handle 12, and the other end fixed mounting of motorized telescopic handle 12 has second scraper 13.

[0019] Further, the left side fixed mounting of screw block 5 has sliding block 14, and the left side fixed mounting of the inner wall of box 2 has sliding slot 15, and sliding block 14 is connected with sliding slot 15 slidingly and is adapted, and screw block 5 can stably be lifted under the sliding action of sliding block 14 and sliding slot 15.

[0020] Further, the right side fixed mounting of screw block 5 has inclined strut 16, and the other end of inclined strut 16 is fixedly connected with the top of upper mould 7 and the bottom of lower mould 9 respectively, and inclined strut 16 can support upper mould 7 and lower mould 9, so as to further improve the stability of upper mould 7 and lower mould 9.

[0021] Further, the left side fixed mounting of screw block 5 has clamping groove 17, and the left side fixed mounting of box 2 has hydraulic rod 18, and the other end fixed mounting of hydraulic rod 18 has clamping block 19 in the inside of box 2, and clamping block 19 and clamping groove 17 are mutually clamped and are adapted, and hydraulic rod 18 can drive clamping block 19 and clamping groove 17 to be mutually clamped, so as to limit screw block 5, and then can prevent upper mould 7 and lower mould 9 from separating in the process of injection.

[0022] Embodiment 2, please refer to Figures 1 to 4The difference between the embodiment and embodiment 1 is that the bottom of the upper mold 7 and the top of the lower mold 9 are fixedly provided with sealing strips 20, the sealing strips 20 are made of polyvinyl chloride material, the sealing sleeve can improve the sealing property between the upper mold 7 and the lower mold 9, so as to prevent the overflow of the injection molding raw material, the outer side of the first scraper 11 and the upper and lower sides of the second scraper 13 are fixedly provided with scraping strips 21, the scraping strips 21 are made of copper alloy material, the scraping strips 21 made of copper alloy material have good wear resistance and fatigue resistance, so as to prolong the service life of the first scraper 11 and the second scraper 13, the four corners of the bottom of the upper mold 7 are fixedly provided with guide rods 22, the four corners of the top of the lower mold 9 are provided with guide holes 23, the guide holes 23 and the guide rods 22 are slidingly connected and matched, and the accuracy of the upper mold 7 and the lower mold 9 when the upper mold 7 and the lower mold 9 are combined is further improved through the arrangement of the guide rods 22 and the guide holes 23.

[0023] Working principle: when the injection mold for the plastic battery cover of the automobile is used, the staff can inject the inside of the upper mold 7 and the lower mold 9 through the injection pipe, when it is necessary to carry out the demolding mode, the staff can start the motor 3, the motor 3 can drive the threaded rod 4 to rotate, the threaded rod 4 can drive the threaded block 5 to ascend and descend, the threaded block 5 can drive the upper mold 7 and the lower mold 9 to ascend and descend, the first scraper 11 can scrape off the plastic residues attached to the inner walls of the upper mold 7 and the lower mold 9 at the same time, so as to ensure the smoothness and precision of the inside of the mold, thereby reducing the defects in the production process of the product and improving the qualified rate of the product, then the staff can start the electric telescopic rod 12, the electric telescopic rod 12 can drive the second scraper 13 to move left and right, the left and right movement of the second scraper 13 can scrape off the plastic residues attached to the first scraper 11, so as to further improve the smoothness and precision of the inside of the mold.

[0024] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An injection mould for a plastic battery cover for a motor vehicle, comprising a base (1), characterised in that: The top left side of the base (1) is fixedly installed with a box body (2), the top of the box body (2) is fixedly installed with a motor (3), the output end of the motor (3) is fixedly installed with a threaded rod (4), and opposite threaded grooves are formed in the threaded rod (4), the outside of the threaded rod (4) and near the upper and lower ends thereof are threadedly connected with threaded blocks (5), the right side of the upper threaded block (5) is fixedly installed with a first connecting rod (6), the other end of the first connecting rod (6) penetrates out of the box body (2) and is fixedly connected with an upper mold (7), and the front side of the upper mold (7) is throughly connected with an injection molding pipe, the right side of the lower threaded block (5) is fixedly installed with a second connecting rod (8), the other end of the second connecting rod (8) penetrates out of the box body (2) and is fixedly connected with a lower mold (9), the right side of the box body (2) and near the upper and lower sides thereof are fixedly installed with L-shaped rods (10), the other ends of the L-shaped rods (10) are fixedly connected with first scrapers (11) penetrating into the interiors of the upper mold (7) and the lower mold (9), the top right side of the base (1) is fixedly installed with a supporting plate, the left side of the supporting plate is fixedly installed with an electric telescopic rod (12), and the other end of the electric telescopic rod (12) is fixedly installed with a second scraper (13).

2. The injection mold for a plastic battery cover for an automobile according to claim 1, characterized by: The left side of the threaded block (5) is fixedly installed with a sliding block (14), the left side of the inner wall of the box body (2) is fixedly installed with a sliding groove (15), and the sliding block (14) is in sliding connection with the sliding groove (15) and is matched.

3. The injection mold for a plastic battery cover for an automobile according to claim 1, characterized by: The right side of the threaded block (5) is fixedly installed with inclined supporting rods (16), and the other ends of the inclined supporting rods (16) are fixedly connected with the top of the upper mold (7) and the bottom of the lower mold (9) respectively.

4. The injection mold for a plastic battery cover for an automobile according to claim 1, characterized by: The left side of the threaded block (5) is fixedly installed with a clamping groove (17), the left side of the box body (2) is fixedly installed with a hydraulic rod (18), the other end of the hydraulic rod (18) penetrates into the interior of the box body (2) and is fixedly connected with a clamping block (19), the clamping block (19) and the clamping groove (17) are mutually clamped and matched.

5. The injection mold for a plastic battery cover for an automobile of claim 1, wherein: The bottom of the upper mold (7) and the top of the lower mold (9) are fixedly installed with sealing strips (20), and the sealing strips (20) are made of polyvinyl chloride material.

6. The injection mold for a plastic battery cover for an automobile of claim 1, wherein: The outer side of the first scraper (11) and the upper and lower sides of the second scraper (13) are fixedly installed with scraping strips (21), and the scraping strips (21) are made of copper alloy material.

7. The injection mold for a plastic battery cover for an automobile according to claim 1, characterized by: Four corners of the bottom of the upper mold (7) are fixedly installed with guide rods (22), four corners of the top of the lower mold (9) are formed with guide holes (23), and the guide holes (23) and the guide rods (22) are in sliding connection and are matched.

Citation Information

Patent Citations

  • Convenient-to-use injection mold for plastic product for automobile

    CN221793689U