A double-side slider inner core pulling mechanism for an automobile bumper injection mold

Abstract

The utility model discloses a core-pulling mechanism inside a double-sided slider of an automobile bumper injection mold, which relates to the field of automobile manufacturing technology, including an injection mold, an injection movable mold arranged above the injection mold, fixed vertical plates fixedly installed on both the front and rear sides of the top of the injection mold, oil cylinders fixedly installed on both the left and right sides of the opposite back surfaces of the two fixed vertical plates, a connecting and fixing block fixedly installed on the output end of the oil cylinder, a bumper core fixedly installed between the opposite surfaces of the two connecting and fixing blocks on the front and rear sides, and the bottom front and rear sides of the bumper core are respectively clamped with the tops of the two fixed vertical plates. The utility model cooperates with the injection mold, the oil cylinder, the connecting and fixing block, and the bumper core, so that the overall bumper core can be stably moved upward by using the connecting and fixing block at the output end of the oil cylinder to fix it, and is convenient to achieve rapid separation from the injection mold.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a core-pulling mechanism in double-side slide blocks of an automobile bumper injection mold. Background Art

[0002] Injection molding is a method for producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting. In order to improve production efficiency, automobile bumpers are mostly produced using injection molds. The existing technology has the following problems:

[0003] Because the existing automobile bumper injection mold can only rely on the ejector to directly eject the injection molded part on the core during demoulding. During the injection molding process, the automobile bumper product is cooled and formed in the mold. Due to the volume shrinkage of the product, a clamping force is exerted on the core. Therefore, forced ejection may cause demoulding failure or product damage. Utility Model Content

[0004] The utility model provides a core-pulling mechanism in double-side slide blocks of an automobile bumper injection mold to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A double-sided slider inner core pulling mechanism of an automobile bumper injection mold comprises an injection fixed mold, an injection movable mold is arranged above the injection fixed mold, fixed vertical plates are fixedly installed on the front and rear sides of the top of the injection fixed mold, oil cylinders are fixedly installed on the left and right sides of the opposite back surfaces of the two fixed vertical plates, a connecting and fixing block is fixedly installed on the output end of the oil cylinder, a bumper core is fixedly installed between the opposite surfaces of the two connecting and fixing blocks on the front and rear sides, and the front and rear sides of the bottom of the bumper core are respectively clamped with the tops of the two fixed vertical plates.

[0007] A further improvement of the technical solution of the utility model lies in that side sliding blocks are provided on the left and right sides of the top of the injection mold, L-shaped fixing blocks are fixedly installed on the front and rear sides of the two side sliding blocks, and card grooves are opened on the left and right sides of the front and rear ends of the bumper core, and the horizontal parts of the two L-shaped fixing blocks on the front and rear sides are respectively connected with the two card grooves on the front and rear sides of the bumper core.

[0008] A further improvement of the technical solution of the utility model is that an ejector plate is arranged at the top center of the injection mold, the ejector plate is located between the opposite surfaces of the front and rear fixed vertical plates, a plurality of injection molding ejectors are evenly and fixedly installed on the top of the ejector plate, the height of the injection molding ejectors varies with the curvature of the bumper core, and the overall shape is short on both sides and long in the middle, and injection molding ejector blocks are fixedly installed on the tops of the plurality of injection molding ejectors.

[0009] A further improvement of the technical solution of the utility model is that the tops of several of the injection molded parts top blocks all penetrate to the top of the bumper core, and the top surfaces of several of the injection molded parts top blocks are maintained on the same horizontal line with the top surface of the bumper core, thereby preventing the injected liquid plastic from penetrating under the bumper core.

[0010] A further improvement of the technical solution of the utility model is that: extension rods are fixedly installed on the opposite surfaces of the two side sliders, inclined sliders are fixedly installed on the left and right sides of the top of the injection mold, the inclined sliders are located on one side of the opposite surfaces of the two side sliders, a sliding groove is provided on the outer wall of the extension rod, and a sliding bar is provided on the side of the inclined slider close to the extension rod, the sliding groove is slidably connected to the sliding bar to maintain the stability of the ascent.

[0011] A further improvement of the technical solution of the utility model is that: the left and right sides of the ejector plate are provided with card slots, the sizes of the two card slots are respectively consistent with the two inclined sliding blocks, and the two inclined sliding blocks respectively penetrate the two card slots to the top of the ejector plate.

[0012] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0013] 1. The utility model provides a double-sided slider inner core pulling mechanism of an automobile bumper injection mold. Through the mutual cooperation among the injection mold, the oil cylinder, the connecting and fixing block, and the bumper core, the overall bumper core can be fixed with the connecting and fixing block at the output end of the oil cylinder to stably move upward, which is convenient for rapid separation from the injection mold.

[0014] 2. The utility model provides a core-pulling mechanism inside double-sided sliders of an automobile bumper injection mold. Through the cooperation among the side sliders, the ejector plate, the injection molded part ejector, the injection molded part ejector block, and the inclined slider, the raised bumper core can be separated from the side sliders, and the injection molding machine is used to drive the ejector plate to rise, so that a number of injection molded part ejectors cooperate with the injection molded part ejector block to quickly and stably demold the bumper injection molded part on the surface of the bumper core. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the separation of the injection movable mold and the injection fixed mold of the utility model structure;

[0017] Figure 3 This is a schematic diagram of the separation of the bumper core of the utility model structure;

[0018] Figure 4It is an enlarged schematic diagram of the inclined sliding block of the utility model structure.

[0019] In the figure: 1. Injection mold; 11. Fixed vertical plate; 12. Cylinder; 13. Connecting fixed block; 14. Bumper core; 141. Slot; 15. Side slide block; 151. L-shaped fixed block; 152. Extension rod; 153. Slide groove; 16. Ejector plate; 161. Ejector of injection molded part; 162. Ejector block of injection molded part; 17. Oblique slide block; 171. Slide bar; 2. Injection movable mold. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1 , Figure 2 As shown, the utility model provides a double-sided slider inner core pulling mechanism of an automobile bumper injection mold, comprising an injection fixed mold 1, an injection movable mold 2 is arranged above the injection fixed mold 1, a hydraulic mechanism for driving the injection movable mold 2 is connected to the top of the injection movable mold 2 for lifting, and a hole for injection is provided at the beginning, so that the liquid plastic required for the bumper can be injected into the core between the injection fixed mold 1 and the injection fixed mold 1, fixed vertical plates 11 are fixedly installed on the front and rear sides of the top of the injection fixed mold 1, and oil cylinders 12 are fixedly installed on the left and right sides of the opposite back surfaces of the two fixed vertical plates 11, and the output end of the oil cylinder 12 is fixedly installed with A connecting and fixing block 13 is provided, and a bumper core 14 is fixedly installed between the opposite surfaces of the two connecting and fixing blocks 13 on the front and rear sides. The front and rear sides of the bottom of the bumper core 14 are respectively clamped with the tops of the two fixed vertical plates 11. Side sliders 15 are provided on the left and right sides of the top of the injection mold 1. L-shaped fixing blocks 151 are fixedly installed on the front and rear sides of the two side sliders 15. Slots 141 are provided on the left and right sides of the front and rear ends of the bumper core 14. The horizontal parts of the two L-shaped fixing blocks 151 on the front and rear sides are respectively clamped with the two slots 141 on the front and rear sides of the bumper core 14.

[0022] After the cooling of the bumper injection molding is completed, the hydraulic mechanism is used to make the injection movable mold 2 leave the injection fixed mold 1, and then the two oil cylinders 12 on the front and rear sides of the top of the injection fixed mold 1 are started simultaneously, so that the bumper core 14 fixed by the connecting fixing block 13 is slowly pushed upward, and the two L-shaped fixing blocks 151 on the front and rear sides are horizontally connected with the front and rear grooves 141 of the bumper core 14, so as to drive the side sliders 15 on the left and right sides of the top of the injection fixed mold 1 to move upward synchronously, so that the bumper core 14 is separated from the injection fixed mold 1.

[0023] like Figure 3 , Figure 4As shown, an ejector plate 16 is provided at the top center of the injection mold 1, and the ejector plate 16 is located between the opposite surfaces of the front and rear fixed vertical plates 11, and a plurality of injection molding ejectors 161 are evenly fixedly installed on the top of the ejector plate 16, and injection molding ejector blocks 162 are fixedly installed on the tops of the plurality of injection molding ejectors 161, and the tops of the plurality of injection molding ejector blocks 162 are all penetrated to the top of the bumper core 14, and the top surfaces of the plurality of injection molding ejector blocks 162 are all kept on the same horizontal line with the top surface of the bumper core 14, and the opposite surfaces of the two side sliders 15 are An extension rod 152 is fixedly installed, and inclined sliders 17 are fixedly installed on both sides of the top of the injection mold 1. The inclined sliders 17 are located on the opposite side of the two side sliders 15. A slide groove 153 is provided on the outer wall of the extension rod 152. A slide bar 171 is provided on the side of the inclined slider 17 close to the extension rod 152. The slide groove 153 is slidably connected with the slide bar 171. A card slot is provided on both sides of the ejector plate 16. The sizes of the two card slots are respectively consistent with the two inclined sliders 17. The two inclined sliders 17 respectively penetrate the two card slots to the top of the ejector plate 16.

[0024] Since an inclined sliding block 17 fixedly connected to the top of the injection fixed mold 1 is provided between the opposite surfaces of the two side sliding blocks 15, the side sliding blocks 15 on both sides can utilize the sliding connection between the sliding groove 153 provided by the extension rod 152 and the sliding bar 171 provided on one side of the inclined sliding block 17, so that the two side sliding blocks 15 can move inward along the inclined sliding block 17, thereby realizing the separation of the side sliding blocks 15 and the bumper. After the separation is completed, the ejector plate 16 can be pushed by the injection molding machine, thereby pushing a plurality of injection molding ejectors 161 on the top of the ejector plate 16 to move upward, and the injection molding ejector block 162 at the top of the injection molding ejector 161 can pass through the top surface of the bumper core 14, and demold the injection molding on the top of the bumper core 14 from the surface.

[0025] The following is a detailed description of the working principle of the core pulling mechanism in the double-sided slider of the automobile bumper injection mold.

[0026] like Figure 1-4As shown, after the cooling of the bumper injection molding is completed, the hydraulic mechanism is used to make the injection movable mold 2 leave the injection fixed mold 1, and then the two oil cylinders 12 on the front and rear sides of the top of the injection fixed mold 1 are simultaneously started, so that the bumper core 14 fixed by the connection fixing block 13 is slowly pushed upward, and the two L-shaped fixing blocks 151 on the front and rear sides are connected with the front and rear side grooves 141 of the bumper core 14 horizontally, so as to drive the side sliders 15 on the left and right sides of the top of the injection fixed mold 1 to move upward synchronously, and because an inclined slider 17 fixedly connected to the top of the injection fixed mold 1 is provided between the opposite surfaces of the two side sliders 15, Therefore, the side sliders 15 on both sides can utilize the sliding connection between the slide groove 153 opened by the extension rod 152 and the slide bar 171 set on one side of the inclined slider 17, so that the two side sliders 15 can move inward along the inclined slider 17, thereby realizing the separation of the side slider 15 and the bumper. After the separation is completed, the ejector plate 16 can be pushed by the injection molding machine, and then the several injection molding ejectors 161 on the top of the ejector plate 16 can be pushed upward, and the injection molding ejector block 162 at the top of the injection molding ejector 161 can pass through the top surface of the bumper core 14, and the injection molding on the top of the bumper core 14 can be demolded from the surface.

[0027] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A double-sided slider inner core pulling mechanism of an automobile bumper injection mold, comprising an injection mold (1), characterized in that: An injection movable mold (2) is arranged above the injection fixed mold (1), and fixed vertical plates (11) are fixedly installed on both the front and rear sides of the top of the injection fixed mold (1), and oil cylinders (12) are fixedly installed on both the left and right sides of the opposite back surfaces of the two fixed vertical plates (11), and a connecting fixed block (13) is fixedly installed on the output end of the oil cylinder (12), and a bumper core (14) is fixedly installed between the opposite surfaces of the two connecting fixed blocks (13) on the front and rear sides, and the front and rear sides of the bottom of the bumper core (14) are respectively clamped with the tops of the two fixed vertical plates (11).

2. The double-side slider inner core-pulling mechanism of the automobile bumper injection mold according to claim 1, characterized in that: The top left and right sides of the injection mold (1) are both provided with side slide blocks (15), the front and rear sides of the two side slide blocks (15) are both fixedly mounted with L-shaped fixing blocks (151), the front and rear ends and the left and right sides of the bumper core (14) are both provided with clamping grooves (141), and the horizontal parts of the two L-shaped fixing blocks (151) on the front and rear sides are respectively clamped with the two clamping grooves (141) on the front and rear sides of the bumper core (14).

3. The double-side slider inner core-pulling mechanism of the automobile bumper injection mold according to claim 2, characterized in that: An ejector plate (16) is arranged at the center of the top of the injection mold (1). The ejector plate (16) is located between the opposite surfaces of the front and rear fixed vertical plates (11). A plurality of injection molding ejectors (161) are evenly and fixedly installed on the top of the ejector plate (16). The height of the injection molding ejectors (161) varies with the curvature of the bumper core (14). The ejectors are shorter on both sides and longer in the middle. An injection molding ejector block (162) is fixedly installed on the top of each of the plurality of injection molding ejectors (161).

4. The double-side slider inner core-pulling mechanism of the automobile bumper injection mold according to claim 3, characterized in that: The tops of several injection molded part top blocks (162) all penetrate to the top of the bumper core (14), and the top surfaces of several injection molded part top blocks (162) are kept on the same horizontal line as the top surface of the bumper core (14), thereby preventing the injected liquid plastic from penetrating under the bumper core (14).

5. The double-side slider inner core-pulling mechanism of the automobile bumper injection mold according to claim 3, characterized in that: An extension rod (152) is fixedly installed on the opposite surfaces of the two side sliders (15), and inclined sliders (17) are fixedly installed on the left and right sides of the top of the injection mold (1), and the inclined slider (17) is located on one side of the opposite surface of the two side sliders (15). A sliding groove (153) is opened on the outer wall of the extension rod (152), and a sliding bar (171) is arranged on the side of the inclined slider (17) close to the extension rod (152), and the sliding groove (153) is slidably connected with the sliding bar (171) to maintain the stability of the ascent.

6. The double-side slider inner core-pulling mechanism of the automobile bumper injection mold according to claim 5, characterized in that: The left and right sides of the ejector plate (16) are both provided with card slots, and the sizes of the two card slots are respectively consistent with the two inclined slide blocks (17), and the two inclined slide blocks (17) respectively penetrate the two card slots to the top of the ejector plate (16).

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