Injection mold for producing lower cover of mouse

Abstract

The utility model discloses an injection mold for producing a lower cover of a mouse, which comprises a bottom plate, square iron, a movable mold plate, a core plate, a cavity plate, a fixed mold plate, a top plate, an ejection mechanism and a pouring mechanism, the core plate is arranged on the movable mold plate, the core plate is provided with two groups of core blocks, the cavity plate is correspondingly provided with two groups of core cavities, two groups of glue injection molding cavities are formed after the mold is closed, and the fixed mold plate is arranged on the top plate. The pouring mechanism comprises a positioning ring and a sprue bush, the sprue bush is arranged in the positioning ring, a main pouring gate is arranged in the sprue bush, the bottom end of the main pouring gate is communicated with a first flow dividing pouring gate, the two ends of the first flow dividing pouring gate are communicated with second flow dividing pouring gates respectively, and the second flow dividing pouring gates are communicated with submarine sprues. According to the utility model, the first shunting pouring gate, the second shunting pouring gate and the main pouring gate are matched to uniformly distribute rubber materials, flow to the submarine gates and enter the rubber injection molding cavities, one group of rubber injection molding cavities is provided with two submarine gates so as to quickly fill the rubber injection molding cavities, and meanwhile, the gate materials are automatically cut off during demolding, so that the product quality and the production efficiency are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould equipment technical field, concretely relates to a kind of injection mould for producing mouse lower cover. BACKGROUND

[0002] Mouse is a kind of very common and commonly used computer input device, it is generally composed of upper shell and bottom cover, and the bottom cover of mouse is formed by injection molding. When producing mouse lower cover, melt plastic material is extruded and injected into injection mold, and injection molding product is formed after cooling and solidification. Because the internal structure of mouse lower cover is complex, the pressure and temperature fluctuation is large in the production process of injection filling using existing injection mold, which can easily lead to poor product consistency, affect product quality, and after injection molding, artificial cutting gate material is needed, production efficiency is low, production cost is high, and it is not conducive to production. SUMMARY

[0003] The main purpose of the utility model is to overcome the defects in the above background art, and provide an injection mold for producing mouse lower cover.

[0004] To achieve the above object, the injection mold for producing mouse lower cover provided by the utility model comprises a bottom plate, a square iron, a movable die plate, a core plate, a cavity plate, a fixed die plate, a top plate, an ejection mechanism and a pouring mechanism. The square iron is arranged on the bottom plate, the movable die plate is arranged on the square iron, the core plate is arranged on the top surface of the movable die plate, the core plate is symmetrically provided with two groups of core blocks, the cavity plate is arranged on the bottom surface of the fixed die plate, the fixed die plate is arranged on the bottom surface of the top plate, the cavity plate is provided with a core cavity matched with the core block, the core block and the core cavity form two groups of glue injection forming cavities after clamping, the ejection mechanism is movably arranged between the two square irons and extends to the top surface of the core block, and the pouring mechanism comprises a positioning ring and a gate sleeve. The positioning ring is arranged on the top surface of the top plate, the gate sleeve is arranged in the positioning ring and extends to the bottom surface of the cavity plate, a main runner is arranged in the gate sleeve, the bottom end of the main runner is communicated with a first shunt runner, the two ends of the first shunt runner are respectively communicated with a second shunt runner, and the end of the second shunt runner is provided with a latent gate communicated with the glue injection forming cavity. During injection molding, the core block and the core cavity form two groups of glue injection forming cavities after clamping, the hot glue entering from the main runner is evenly distributed to the first shunt runner and the second shunt runner, and then the hot glue is rapidly filled and extruded into the glue injection forming cavity through the two latent gates on the side of each group of glue injection forming cavities, so that the temperature and pressure of the hot glue in the glue injection forming cavity are prevented from fluctuating too much, the quality and production efficiency of the product are effectively improved, the gate material can be automatically cut off when the product is ejected and demolded due to the arrangement of the latent gate, subsequent processing procedures are not needed, labor cost is reduced, production efficiency is improved, and production cost is reduced.

[0005] Further optimize the technical scheme, the first cooling well is vertically communicated with the middle part of the first runner. The first cooling well stores the cold rubber material of the head section of the main runner, ensures the uniformity of the temperature of the rubber material in the mold, and further improves the quality and consistency of the product.

[0006] Further optimize the technical scheme, the second cooling well is vertically communicated with the first runner and the second runner. The second cooling well stores the cold rubber material flowing through the head section of the first runner, further ensures the uniformity of the temperature of the rubber material in the mold, and improves the quality and consistency of the product.

[0007] Further optimize the technical scheme, the ejector mechanism includes an ejector base plate and an ejector face plate, the ejector face plate is fixedly arranged on the ejector base plate, the ejector base plate and the ejector face plate are movably arranged between the two square irons, a plurality of round ejectors extending to the core block are arranged on the ejector face plate, a material pulling rod is arranged in the middle of the ejector face plate, and the material pulling rod extends into the first cooling well. When the mold is opened, the cold material head is pulled out of the sprue bushing through the material pulling rod, and the round ejectors are pushed forward to eject the product through the ejector base plate and the ejector face plate.

[0008] Further optimize the technical scheme, the support column is arranged on the base plate, and through holes for the support column to pass through are arranged on both sides of the ejector base plate and the ejector face plate. The support column supports the ejector base plate and the ejector face plate, and plays a guiding role when the ejector base plate and the ejector face plate move, so as to avoid breakage of the round ejectors and the material pulling rod.

[0009] Further optimize the technical scheme, the reset rod is arranged around the ejector face plate, the reset spring is sleeved on the reset rod, the bottom end of the reset spring abuts against the top surface of the ejector face plate, and the top end of the reset spring abuts against the bottom surface of the movable die plate. The reset spring pushes the ejector face plate and the ejector base plate to reset, so that the round ejectors are automatically retracted, and the product forming is not affected.

[0010] Further optimize the technical scheme, the inclined ejector seat is arranged on the ejector face plate, the I-shaped groove is arranged on the inclined ejector seat, the rollers are arranged on both sides in the I-shaped groove, the inclined ejector rod is arranged on the connecting shaft between the two rollers, and the inclined ejector rod extends obliquely upward to the core block. When the product is ejected, the inclined ejector seat and the inclined ejector rod cooperate to perform inclined ejection at the position where the mouse lower cover is provided with an undercut, so as to avoid that the undercut is pulled to affect the ejection of the product.

[0011] Further optimize technical scheme, the moulding face of the core plate is provided with positioning protrusions around, the moulding face of the cavity plate is provided with positioning grooves corresponding to the positioning protrusions. When closing the mould, the positioning protrusions are moved to be clamped in the positioning grooves, the guiding is realized, and the centering effect of the mould is improved.

[0012] Further optimize technical scheme, the moulding faces of the movable die plate and the fixed die plate are all provided with balance blocks around the mould frames. The balance blocks ensure that the injection mould is balanced in force during the injection moulding, so that the service life of the mould is prolonged.

[0013] Further optimize technical scheme, the mould frame of the movable die plate is provided with vertical guide columns around, and the fixed die plate is provided with guide sleeves corresponding to the guide columns. The guide columns and the guide sleeves are matched to play the roles of guiding, positioning and bearing lateral pressure, so that the injection mould can be normally centered during the mould opening and closing.

[0014] The beneficial effects of the utility model include: two groups of core blocks and core cavities are arranged, two groups of glue injection forming cavities are formed after the mould is closed, two mouse lower cover products can be produced by once opening and closing the mould, the production efficiency is effectively improved, the hot glue entering from the main runner is evenly distributed to the latent gate through the first and second split runners and then enters the glue injection forming cavity, two latent gates are arranged in one group of glue injection forming cavities to rapidly fill the glue injection forming cavity, the fluctuation of injection temperature and pressure is avoided, the quality and production efficiency of products are effectively improved, meanwhile, the latent gate is adopted, the gate material can be automatically cut off when the product is ejected and demoulded, subsequent treatment process is not needed, and the production efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the injection mould assembly in the utility model embodiment.

[0016] Figure 2 It is a schematic diagram of the movable die plate and the core plate in the utility model embodiment.

[0017] Figure 3 It is a schematic diagram of the fixed die plate and the cavity plate in the utility model embodiment.

[0018] Figure 4 It is a whole schematic diagram of the injection mould in the utility model embodiment.

[0019] Figure 5 It is a schematic diagram of the communication of the main runner, the first split runner, the second split runner and the latent gate in the utility model embodiment.

[0020] Figure 6 It is a schematic diagram of the inclined top seat and the inclined top rod in the utility model embodiment.

[0021] Figure 7 is a top view of the injection mold in the embodiments of the present application.

[0022] Figure 8 is Figure 7 is a sectional view of A-A in the injection mold.

[0023] Figure 9 is Figure 7 is a sectional view of B-B in the injection mold.

[0024] Reference signs: 1 bottom plate; 101 support column; 2 square iron; 3 movable mold plate; 301 guide column; 4 core plate; 401 core block; 402 positioning protrusion; 5 cavity plate; 501 core cavity; 502 positioning groove; 6 fixed mold plate; 601 guide sleeve; 7 top plate; 8 ejection mechanism; 801 ejector pin bottom plate; 802 ejector pin face plate; 803 round ejector pin; 804 material pulling rod; 805 through hole; 806 reset rod; 807 reset spring; 808 inclined ejector seat; 809 I-shaped groove; 8010 roller; 8011 inclined ejector rod; 9 pouring mechanism; 901 positioning ring; 902 gate sleeve; 903 main gate; 904 first sub-gate; 905 second sub-gate; 906 latent gate; 907 first cooling well; 908 second cooling well; 10 glue injection forming cavity; 11 balance block. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved in the embodiments of the present application more clear and obvious, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be for fixing or for circuit communication.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and are not to be construed as indicating or implying relative importance or a specific number of the indicated technical features. Thus, features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0029] Please refer to Figures 1 to 9The injection mold for producing mouse bottom cover disclosed in an embodiment comprises a bottom plate 1, two square irons 2, a movable mold plate 3, a core plate 4, a cavity plate 5, a fixed mold plate 6, a top plate 7, an ejection mechanism 8 and a pouring mechanism 9. The two square irons 2 are arranged on the two sides of the bottom plate 1, the movable mold plate 3 is arranged on the two square irons 2, the core plate 4 is arranged on the top surface of the movable mold plate 3, two groups of core blocks 401 are symmetrically arranged on the core plate 4, the cavity plate 5 is arranged on the bottom surface of the fixed mold plate 6, the fixed mold plate 6 is arranged on the bottom surface of the top plate 7, two groups of core cavities 501 matched with the core blocks 401 are arranged on the cavity plate 5, the core blocks 401 and the core cavities 501 form two groups of glue injection forming cavities 10 after the mold is closed, the ejection mechanism 8 is movably arranged between the two square irons 2 and extends to the top surface of the core blocks 401, and is used for ejecting the mouse bottom cover product covered on the core blocks 401 after the mold is opened, the pouring mechanism 9 comprises a positioning ring 901 and a sprue bush 902, the positioning ring 901 is fixedly arranged on the top surface of the top plate 7, the sprue bush 902 is arranged in the positioning ring 901 and extends to the bottom surface (mold closing surface) of the cavity plate 5, a main runner 903 is arranged in the sprue bush 902, a first branch runner 904 is communicated with the bottom end of the main runner 903, a second branch runner 905 is respectively communicated with the two ends of the first branch runner 904, and a latent type sprue 906 communicated into the glue injection forming cavity 10 is arranged at the end of the second branch runner 905. Specifically, the main runner 903 and the first branch runner 904 are arranged vertically, the first branch runner 904 and the second branch runner 905 are arranged vertically, the first branch runner 904 and the second branch runner 905 are formed by the half grooves on the core blocks 401 and the core cavities 501 after the mold is closed, the first branch runner 904 is arranged in the middle of the two groups of glue injection forming cavities 10 and is arranged along the length direction of the glue injection forming cavity 10, and the two ends of the two groups of second branch runners 905 extend to one side of the two groups of glue injection forming cavities 10 respectively.

[0030] In the specific example, the first cooling well 907 is arranged at the intersection of the main runner 903 and the first sub-runner 904, and vertically communicates with the middle part of the first sub-runner 904. The cold rubber material at the head section of the main runner 903 is stored in the first cooling well 907, so as to ensure the uniformity of the rubber material temperature in the mold, avoid the molding problem of the mouse bottom cover caused by the temperature unevenness, and improve the quality and consistency of the product.

[0031] In the specific example, the second cooling well 908 is arranged at the intersection of the first sub-runner 904 and the second sub-runner 905 at both ends of the first sub-runner 904, and vertically communicates with the first sub-runner 904 and the second sub-runner 905. Since the first sub-runner 904 is too long, the cold rubber material flowing through the head section of the first sub-runner 904 is stored in the second cooling well 908, so as to further ensure the uniformity of the rubber material temperature in the mold, and improve the quality and consistency of the product.

[0032] In the specific example, the ejection mechanism 8 includes a ejector base plate 801 and an ejector face plate 802, the ejector face plate 802 is fixedly arranged on the ejector base plate 801, the ejector base plate 801 and the ejector face plate 802 are movably arranged between the two iron plates 2, a plurality of circular ejector pins 803 extending upward to the core block 401 are arranged on the ejector face plate 802, a material pulling rod 804 extending into the first cooling well 907 is arranged in the middle part of the ejector face plate 802. Specifically, two circular ejector pins 803 extend into the second cooling well 908, and the remaining circular ejector pins 803 extend to the upper surface of the core block 401. After the mold is filled with rubber material and cooled, the injection mold is opened and retracted, the material head is pulled out of the main runner 903 by the material pulling rod 804, the ejector base plate 801 is pushed to move away from the mold direction on the side, the circular ejector pins 803 on the ejector face plate 802 are driven to eject the mouse bottom cover product, and the cooled mouse bottom cover product is separated from the core block 401.

[0033] In the preferred embodiment, the support column 101 is arranged on the base plate 1, and the through holes 805 through which the support column 101 passes are arranged on both sides of the ejector base plate 801 and the ejector face plate 802. Through the cooperation of the support column 101 and the through holes 805, when the ejector base plate 801 and the ejector face plate 802 are moved, they can only move along the length direction of the support column 101, so as to avoid the inclination of the ejector base plate 801 and the ejector face plate 802 during the movement, and cause the breakage of the circular ejector pins 803 and the material pulling rod 804.

[0034] In a specific example, a reset rod 806 is arranged around the ejector plate 802, a reset spring 807 is sleeved on the reset rod 806, the bottom end of the reset spring 807 abuts against the top surface of the ejector plate 802, and the top end of the reset spring 807 abuts against the bottom surface of the movable die plate 3. Through the cooperation of the reset rod 806 and the reset spring 807, the ejector plate 802 and the ejector base plate 801 are pushed to reset under the action of the reset spring 807 during the clamping movement, so that the round ejector pin 803 is automatically retracted, and the product forming is avoided from being affected.

[0035] In a specific example, an inclined ejector seat 808 is arranged on the ejector plate 802, a I-shaped groove 809 is arranged on the inclined ejector seat 808, two rollers 8010 are arranged on the two sides in the I-shaped groove 809 respectively, and an inclined ejector rod 8011 is rotatably arranged on the connecting shaft between the two rollers 8010 on the two sides and extends obliquely upward to the core block 401. Specifically, a receiving groove (not shown in the figure) is arranged on the upper surface of the ejector plate 802, and the inclined ejector seat 808 is arranged in the receiving groove. Since the mouse lower cover product has an undercut inside, it is easy to be stuck during demolding. Through the cooperation of the inclined ejector seat 808 and the inclined ejector rod 8011, the mold can realize lateral core pulling, the product can be smoothly demolded, and the production efficiency is further improved.

[0036] In a preferred embodiment, positioning protrusions 402 are arranged around the clamping surface of the core plate 4, and positioning recesses 502 corresponding to the positioning protrusions 402 are arranged on the clamping surface of the cavity plate 5. When clamping, the positioning protrusions 402 are moved to be clamped in the positioning recesses 502, so that the guiding is realized, the centering of the upper and lower molds is improved, the problems such as sticking of the mold, demolding difficulty, product deformation and the like are avoided, and the product quality is improved.

[0037] In a preferred embodiment, balance blocks 11 are arranged around the mold frame of the clamping surface of the movable die plate 3 and the fixed die plate 6. By adjusting the balance blocks 11 to make the balance blocks 11 on the fixed die and the movable die contact and cooperate, it is ensured that the injection mold is balanced in stress during injection, so that the service life of the mold is prolonged.

[0038] In a preferred embodiment, vertical upward guide columns 301 are arranged around the mold frame of the movable die plate 3, and guide sleeves 601 corresponding to the guide columns 301 are arranged on the fixed die plate 6. Through the cooperation of the guide columns 301 and the guide sleeves 601, the guiding, positioning and bearing lateral pressure are realized, so that the injection mold moves accurately, and it is ensured that the injection mold can be normally centered during the opening and clamping of the mold.

[0039] The above is further detailed description of the utility model in combination with specific / preferred embodiments, which cannot be deemed as limiting the specific implementation of the utility model to these descriptions. For ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, they can make several substitutions or variations to the described embodiments, and these substitution or variation manners shall be deemed as belonging to the protection scope of the utility model. In the description of the specification, the description of the reference terms "an embodiment", "some embodiments", "preferred embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the case of not mutually contradictory, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples. Although the embodiments of the utility model and its advantages have been described in detail, it should be understood that various changes, substitutions and modifications can be made in this paper without departing from the protection scope of the patent application.

Claims

1. The injection mold for producing the lower cover of the mouse is characterized by: The invention comprises a bottom plate, a square iron, a movable template, a core plate, a cavity plate, a fixed template, a top plate, an ejection mechanism and a pouring mechanism, wherein the square iron is arranged on the bottom plate, the movable template is mounted on the square iron, the core plate is arranged on the top surface of the movable template, the core plate is symmetrically provided with two groups of core blocks, the cavity plate is arranged on the bottom surface of the fixed template, the fixed template is arranged on the bottom surface of the top plate, the cavity plate is provided with a core cavity matched with the core block, and two groups of injection molding are formed between the core block and the core cavity after the mold is closed. The ejection mechanism is movably arranged between the two square irons and extends to the top surface of the core block. The pouring mechanism includes a positioning ring and a gate sleeve. The positioning ring is arranged on the top surface of the top plate. The gate sleeve is arranged in the positioning ring and extends to the bottom surface of the cavity plate. A main runner is provided in the gate sleeve. The bottom end of the main runner is connected to a first diversion runner. The two ends of the first diversion runner are respectively connected to a second diversion runner. The end of the second diversion runner is provided with a latent gate connected to the injection molding cavity.

2. The injection mold for producing a mouse lower cover according to claim 1, characterized in that: A first cooling well is provided at the intersection of the main runner and the first branch runner, and the first cooling well is vertically connected to the middle of the first branch runner.

3. The injection mold for producing a mouse lower cover according to claim 2, wherein: A second cooling well is provided at the intersection of the two ends of the first diverter runner and the second diverter runner, and the second cooling well is vertically connected to the first diverter runner and the second diverter runner.

4. The injection mold for producing a mouse lower cover according to claim 3, characterized in that: The ejection mechanism includes an ejector base plate and an ejector panel. The ejector panel is fixed on the ejector base plate. The ejector base plate and the ejector panel are movably arranged between the two square irons. The ejector panel is provided with a plurality of round ejectors extending to the core block. A pulling rod is provided in the middle of the ejector panel, and the pulling rod extends into the first cooling well.

5. The injection mold for producing a mouse lower cover according to claim 4, characterized in that: The bottom plate is provided with a supporting column, and both sides of the ejector bottom plate and the ejector panel are correspondingly provided with through holes for the supporting column to pass through.

6. The injection mold for producing a mouse lower cover according to claim 5, characterized in that : A reset rod is provided around the ejector panel, and a reset spring is sleeved on the reset rod. The bottom end of the reset spring abuts against the top surface of the ejector panel, and the top end of the reset spring abuts against the bottom surface of the movable template.

7. The injection mold for producing a lower cover of a mouse according to claim 6, characterized in that : The ejector panel is provided with an inclined ejector seat, the inclined ejector seat is provided with an I-shaped groove, rollers are provided on both sides of the I-shaped groove, and an inclined ejector rod is provided on the connecting shaft between the two rollers, and the inclined ejector rod extends obliquely upward to the core block.

8. The injection mold for producing a mouse lower cover according to any one of claims 1 to 7, characterized in that: Positioning convex blocks are convexly arranged on the four sides of the die-matching surface of the core plate, and positioning grooves corresponding to the positioning convex blocks are arranged on the die-matching surface of the cavity plate.

9. The injection mold for producing a mouse lower cover according to claim 8, characterized in that: Balance blocks are provided around the mold frames of the mold surfaces of the movable mold plate and the fixed mold plate.

10. The injection mold for producing a mouse lower cover according to claim 9, characterized in that: Vertically upward guide posts are arranged around the mold frame of the movable mold plate, and guide sleeves for inserting the guide posts are correspondingly arranged on the fixed mold plate.

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