Plastic mould for battery cover

Abstract

The utility model relates to the technical field of plastic injection molding, in particular to a battery cover plastic mold which comprises a base, a seat part is installed on the upper side of the base and comprises a seat shell fixedly connected with the base, a sinking groove is formed in the inner side of the upper end face of the seat shell, a rotating groove is formed in the front side of the sinking groove, and a rotating shaft is rotationally connected to the inner side of the rotating groove. The left end and the right end of the rotating shaft penetrate through the seat shell to be fixedly connected with sector gears, lapping grooves are formed in the two sides of the rear portion of the sinking groove, a lower die part is installed on the inner side of the seat part and comprises a rotating sleeve which is fixedly connected with the rotating shaft and located on the inner side of the rotating groove, and the rear side of the rotating sleeve is fixedly connected with a lower die located on the inner side of the sinking groove. According to the utility model, through the arrangement of the seat part, the lower mold part, the transmission part, the guide part and other structures, on the premise that the battery cover plastic mold does not damage the battery cover, the molded battery cover can be automatically demolded and conveyed to the next working procedure.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding plastics, in particular to a battery cover plastic mold. Background Art

[0002] Battery cover plastic molds are tools designed specifically for the production of battery covers or other similar plastic products. They are usually made of metal (such as steel or aluminum) with high precision and high wear resistance to ensure that the produced battery covers have accurate dimensions, smooth appearance, and stable performance.

[0003] When producing battery covers, existing molds usually inject molten plastic into the mold cavity through an injection molding machine, and form a battery cover after cooling and solidification. The molded battery cover product is then pushed out of the mold by an ejection mechanism in the mold. Common ejection mechanisms include push rods, push plates, and ejector blocks, which are usually set at multiple points on the lower side of the molded product. After the product is formed, they are pushed upward to demold the product. However, when this demolding method encounters thin plastic parts such as battery covers in actual use, the upward push-out demolding operation of the ejection mechanism may cause slight deformation or marks at the stress-bearing parts of the battery cover that has not been fully solidified, thereby affecting the quality of the battery cover after it is manufactured. Moreover, the plastic parts after demolding still need to be manually removed by the staff, which is not convenient. Therefore, based on the above problems, a battery cover plastic mold is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a battery cover plastic mold to solve the problem that the ejection-type demoulding operation of the existing battery cover plastic mold may cause deformation to the newly formed battery cover, affecting the quality of the battery cover, and the plastic part still needs to be manually removed by the staff after demoulding, which is inconvenient.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A battery cover plastic mold, comprising a base, wherein a seat is installed on the upper side of the base, and the seat includes a seat shell fixedly connected to the base, a sink groove is provided on the inner side of the upper end surface of the seat shell, a rotation groove is provided on the front side of the sink groove, a rotating shaft is rotatably connected to the inner side of the rotating groove, the left and right ends of the rotating shaft pass through the seat shell and are fixedly connected to a fan-shaped gear, a step groove is provided on both sides of the rear part of the sink groove, a lower mold part is installed on the inner side of the seat part, the lower mold part includes a rotating sleeve fixedly connected to the rotating shaft and located on the inner side of the rotation groove, the rear side of the rotating sleeve is fixedly connected to the lower mold located on the inner side of the sink groove, and both sides of the rear side of the lower mold are fixedly connected to step blocks located on the inner side of the step groove, and telescopic guide rods are fixedly connected to the upper ends of a group of telescopic guide rods. The cam is fixedly connected to the base, and the lower end of the cam is fixedly connected to the upper mold which is aligned with the lower mold. A transmission part is installed on the left and right sides of the cam, and the transmission part includes a base fixedly connected to the lower pressure part, and a notch is opened on the front side of the lower part of the base. The inner side of the hole of the notch is slidably connected to a limiting guide rod, and the front end of the limiting guide rod is fixedly connected to a rack which is slidably connected to the inner wall of the notch. The outer side of the limiting guide rod is sleeved with a spring which is located on the inner side of the notch. The front side of the base is fixedly connected to a guide part, and the guide part includes a group of two folding rods fixedly connected to the base, and the upper end of a group of the folding rods is fixedly connected to a guide plate, and the left and right sides of the upper part of the guide plate are fixedly connected to a fixing sleeve, and the inner side of the fixing sleeve is fixedly connected to a vibrator.

[0007] Preferably, the lower mold and the upper mold are both arranged in a horizontal state, a distance is set between the upper mold and the lower mold, and the distance between the upper mold and the lower mold is greater than the width of the lower mold part.

[0008] Preferably, the lower pressing part is composed of a middle plate, an injection kit in the middle plate and side blocks on both sides of the middle plate. The telescopic guide rod is arranged in a longitudinal vertical state. The upper end of the telescopic guide rod is fixedly connected to the side block of the lower pressing part. The injection kit of the lower pressing part is connected to the inner side of the upper mold.

[0009] Preferably, the transmission parts are all arranged on the rear side of the sector gear, a distance is provided between the rear end face of the rack and the inner wall of the notch, the springs are all arranged between the rear end face of the rack and the inner wall of the notch, the rack and the sector gear are both provided with seven teeth, and the angle of the sector gear is 130 degrees.

[0010] Preferably, the guide plate is set at an inclined angle, the guide plate is set on the front side of the seat, the width of the guide plate is larger than the width of the mold groove of the lower mold, and a cooler is set on the inner side of the seat shell.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the utility model, by providing the seat, lower mold, transmission part and guide part and other structures, the external injection molding machine controls the lower pressure part, the upper mold moves downward and is assembled with the lower mold, and then the molten plastic is injected into the assembled upper and lower molds through the injection kit. After cooling and solidification, the battery cover is formed. At this time, the external injection molding machine controls the lower pressure part and the upper mold to move upward, so that the upper mold and the lower mold are separated, and the battery cover formed in the lower mold is exposed. In the process of moving upward, the lower pressure part drives the transmission parts on both sides to move upward, so that the rack is engaged with the sector gear, and the sector gear and the transmission parts are driven by the upward movement of the rack. The shaft rotates, and the rotation of the shaft drives the lower mold part to rotate 130 degrees in the direction of the guide part. The rotated lower mold part will contact the running vibrator, and the molded battery cover in the lower mold will be ejected by vibration to complete the demoulding. This realizes that the battery cover plastic mold can automatically demould and convey the molded battery cover to the next process without causing damage to the battery cover, and solves the problem that the ejection-type demoulding operation of the existing battery cover plastic mold may cause deformation to the newly formed battery cover, affecting the quality of the battery cover, and the plastic parts after demoulding still need to be manually removed by the staff, which is inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 Schematic diagram of the structure viewed from above;

[0015] Figure 3 It is a structural diagram of the seat portion of the utility model;

[0016] Figure 4 This is a structural diagram of the lower die portion of the utility model;

[0017] Figure 5 It is a structural diagram of the transmission part of the utility model;

[0018] Figure 6 This is a structural diagram of the guide part of the utility model;

[0019] Figure 7 For this utility model Figure 1 Schematic diagram of the structure during demoulding.

[0020] In the figure: 1. base; 2. seat; 21. seat shell; 22. sink; 23. rotating groove; 24. rotating shaft; 25. sector gear; 26. stepping groove; 3. lower mold; 31. rotating sleeve; 32. lower mold; 33. stepping block; 4. telescopic guide rod; 5. pressing part; 6. upper mold; 7. transmission part; 71. base plate; 72. notch; 73. limiting guide rod; 74. rack; 75. spring; 8. guide part; 81. folding rod; 82. guide plate; 83. fixing sleeve; 84. vibrator. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0024] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0026] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0027] See also Figure 1-7 , the utility model provides a technical solution:

[0028] A battery cover plastic mold, comprising a base 1, a base 2 is mounted on the upper side of the base 1, the base 2 comprises a base shell 21 fixedly connected to the base 1, a sink groove 22 is provided on the inner side of the upper end surface of the base shell 21, a rotation groove 23 is provided on the front side of the sink groove 22, a rotating shaft 24 is rotatably connected to the inner side of the rotating groove 23, the left and right ends of the rotating shaft 24 pass through the base shell 21 and are fixedly connected to a sector gear 25, a step groove 26 is provided on both sides of the rear part of the sink groove 22, a lower mold part 3 is mounted on the inner side of the base 2, the lower mold part 3 comprises a rotating sleeve 31 fixedly connected to the rotating shaft 24 and located on the inner side of the rotating groove 23, the rear side of the rotating sleeve 31 is fixedly connected to the lower mold 32 located on the inner side of the sink groove 22, and both sides of the rear side of the lower mold 32 are fixedly connected to step blocks 33 located on the inner side of the step groove 26, and telescopic guide rods 4 are fixedly connected to both sides of the upper part of the base 1, and a group of telescopic guide rods 4 are fixedly connected to the upper ends. The lower part 5 is fixedly connected to the base 1, and the lower side of the lower part 5 is fixedly connected to the upper mold 6 aligned with the lower mold 32. The transmission part 7 is installed on the left and right sides of the lower part 5. The transmission part 7 includes a base plate 71 fixedly connected to the lower part 5. A notch 72 is provided on the lower front side of the base plate 71. The inner side of the hole of the notch 72 is slidably connected to a limiting guide rod 73. The front end of the limiting guide rod 73 is fixedly connected to a rack 74 slidably connected to the inner wall of the notch 72. The outer side of the limiting guide rod 73 is sleeved with a spring 75 located on the inner side of the notch 72. The front side of the base 1 is fixedly connected to a guide part 8. The guide part 8 includes a group of two folding rods 81 fixedly connected to the base 1. The upper end of a group of folding rods 81 is fixedly connected to a guide plate 82. The upper left and right sides of the guide plate 82 are fixedly connected to a fixing sleeve 83, and the inner side of the fixing sleeve 83 is fixedly connected to a vibrator 84.

[0029] The lower mold 32 and the upper mold 6 are both arranged in a horizontal state, and this arrangement allows the lower mold 32 to be spliced with the upper mold 6, and a spacing is set between the upper mold 6 and the lower mold 32, and the spacing size between the upper mold 6 and the lower mold 32 is larger than the width size of the lower mold part 3, so that the forward rotation of the lower mold part 3 is not interfered with by the upper mold 6; the lower pressing part 5 is composed of a middle plate, an injection kit in the middle plate and side blocks on both sides of the middle plate, and the telescopic guide rod 4 is arranged in a longitudinal vertical state, and the upper end of the telescopic guide rod 4 is fixedly connected to the side blocks of the lower pressing part 5. Through this arrangement, the telescopic guide rod 4 can vertically guide the displacement of the lower pressing part 5, and the injection kit of the lower pressing part 5 is connected to the inner side of the upper mold 6, so that external equipment can inject molding the upper mold 6 through the injection kit of the lower pressing part 5; the transmission part 7 is arranged on the rear side of the fan gear 25, and a spacing is set between the rear end face of the rack 74 and the inner wall of the notch 72, through Through this arrangement, the rack 74 can be displaced into the notch 72, and the spring 75 is arranged between the rear end face of the rack 74 and the inner wall of the notch 72. Through this arrangement, the spring 75 can push the rack 74 forward and reset. The rack 74 and the sector gear 25 are both provided with seven teeth, and the angle between the sector gear 25 is 130 degrees. Through this arrangement, the rack 74 can drive the sector gear 25 to rotate 130 degrees, thereby driving the lower mold part 3 to rotate 130 degrees; the guide plate 82 is set at an inclined angle, and the guide plate 82 is set at the front side of the seat 2. Through this arrangement, the guide plate 82 can guide the battery cover that falls into it. The width of the guide plate 82 is greater than the width of the mold groove of the lower mold 32. Through this arrangement, the battery cover that falls off at the mold groove of the lower mold 32 can be completely received by the guide plate 82. A cooler is provided on the inner side of the seat shell 21. Through this arrangement, the cooler in the seat shell 21 can cool the formed battery cover.

[0030] Workflow: The battery cover plastic mold is used as follows. Note: This solution uses an external power supply and is controlled by an external controller. The lower pressing part 5 and the upper mold 6 are moved downwards and assembled with the lower mold 32 through the external injection molding machine. The molten plastic is injected into the assembled upper and lower molds through the injection kit of the lower pressing part 5. The battery cover is formed after being cooled and solidified by the cooler in the seat shell 21. At this time, the lower pressing part 5 and the upper mold 6 are moved upwards by the external injection molding machine to separate the upper mold 6 from the lower mold 32. When the battery cover formed in the lower mold 32 is exposed, the lower pressing part 5 will drive the transmission parts 7 on both sides to move upward during the upward movement, so that the rack 74 is engaged with the sector gear 25. The upward movement of the rack 74 drives the sector gear 25 and the rotating shaft 24 to rotate. The rotation of the rotating shaft 24 drives the lower mold part 3 to rotate 130 degrees in the direction of the guide part 8, so that the upper end surface of the lower mold 32 and the battery cover are in a downward tilted state. The rotated lower mold part 3 will contact the running vibrator 84, and the lower mold part 3 will be vibrated. The molded battery cover in the mold 32 is ejected and falls into the guide plate 82. The guide plate 82 guides the battery cover to the next process to complete the demoulding. Under the premise of not damaging the battery cover, the battery cover plastic mold can automatically demould the molded battery cover to the next process. Then the external injection molding machine will control the lower pressing part 5 and the upper mold 6 to move down and assemble with the lower mold 32 for the next injection molding. In the process of moving down, the lower pressing part 5 will drive the transmission part 7 to move downward, and the downward movement of the transmission part 7 will pass The rack 74 drives the sector gear 25 and the rotating shaft 24 to rotate, and then drives the lower mold part 3 to perform a reset rotation backward, so that the lower mold part 3 is re-accommodated in the seat part 2. As the lower mold part 3 is reset, the sector gear 25 will no longer be able to rotate backward. At this time, the downward-moving rack 74 is squeezed by the sector gear 25 that cannot rotate and will move into the notch 72, so that the rack 74 and the sector gear 25 are disengaged, so that the upper mold 6 moves downward and is spliced with the lower mold 32 without interference from the rack 74 and the sector gear 25.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery cover plastic mold, comprising a base (1), characterized in that: A seat portion (2) is mounted on the upper side of the base (1), and the seat portion (2) includes a seat shell (21) fixedly connected to the base (1), a sinking groove (22) is provided on the inner side of the upper end surface of the seat shell (21), a rotating groove (23) is provided on the front side of the sinking groove (22), a rotating shaft (24) is rotatably connected to the inner side of the rotating groove (23), and the left and right ends of the rotating shaft (24) pass through the seat shell (21) and are fixedly connected to a sector gear (25), and both sides of the rear part of the sinking groove (22) are provided with a sling groove (26), and the seat portion (2) is provided with a lower mold part (3) on the inner side thereof, the lower mold part (3) comprising a rotating sleeve (31) fixedly connected to the rotating shaft (24) and located on the inner side of the rotating groove (23), the rear side of the rotating sleeve (31) is fixedly connected to the lower mold (32) located on the inner side of the sinking groove (22), the rear sides of the lower mold (32) are fixedly connected to the stepping blocks (33) located on the inner side of the stepping groove (26), the upper sides of the base (1) are fixedly connected to the telescopic guide rods (4), the upper ends of a group of the telescopic guide rods (4) are fixedly connected to the lower mold (32) and the lower mold (32) is fixedly connected to the lower mold (32). The pressing part (5) is fixedly connected to the lower side of the pressing part (5) with an upper mold (6) aligned with the lower mold (32), and the left and right sides of the pressing part (5) are both equipped with a transmission part (7), and the transmission part (7) includes a base plate (71) fixedly connected to the pressing part (5), and a notch (72) is provided on the lower front side of the base plate (71). The inner side of the hole of the notch (72) is slidably connected to a limiting guide rod (73), and the front end of the limiting guide rod (73) is fixedly connected to a sliding connection with the inner wall of the notch (72). The rack (74) is provided on the outer side of the limit guide rod (73) and is provided with a spring (75) on the inner side of the notch (72). The front side of the base (1) is fixedly connected to a guide part (8). The guide part (8) includes a group of two folding rods (81) fixedly connected to the base (1). The upper end of one group of folding rods (81) is fixedly connected to a guide plate (82). The upper left and right sides of the guide plate (82) are fixedly connected to a fixed sleeve (83). The inner side of the fixed sleeve (83) is fixedly connected to a vibrator (84).

2. The battery cover plastic mold according to claim 1, characterized in that: The lower mold (32) and the upper mold (6) are both arranged in a horizontal state, and a distance is provided between the upper mold (6) and the lower mold (32). The distance between the upper mold (6) and the lower mold (32) is greater than the width of the lower mold part (3).

3. The battery cover plastic mold according to claim 1, characterized in that: The lower pressing part (5) is composed of a middle plate, an injection kit in the middle plate and side blocks on both sides of the middle plate. The telescopic guide rod (4) is arranged in a longitudinal vertical state. The upper end of the telescopic guide rod (4) is fixedly connected to the side blocks of the lower pressing part (5). The injection kit of the lower pressing part (5) is connected to the inner side of the upper mold (6).

4. The battery cover plastic mold according to claim 1, characterized in that: The transmission parts (7) are all arranged on the rear side of the sector gear (25), a distance is provided between the rear end face of the rack (74) and the inner wall of the notch (72), the springs (75) are all arranged between the rear end face of the rack (74) and the inner wall of the notch (72), the rack (74) and the sector gear (25) are both provided with seven teeth, and the angle of the sector gear (25) is 130 degrees.

5. The battery cover plastic mold according to claim 1, characterized in that: The guide plate (82) is set at an inclined angle, and the guide plate (82) is set on the front side of the seat (2). The width of the guide plate (82) is larger than the width of the mold groove of the lower mold (32). A cooler is set on the inner side of the seat shell (21).

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