Anti-overflow injection mold

Abstract

The utility model discloses an anti-overflow injection mold, which relates to the technical field of injection molds, and comprises a support, a lower mold frame fixedly mounted on the support, a lower mold fixedly mounted on the lower mold frame, and an upper mold frame vertically arranged on the lower mold frame in a sliding manner, and an upper mold matched with the lower mold is fixedly mounted on the upper mold frame. According to the anti-overflow injection mold provided by the utility model, the sealing assembly is arranged, so that the sliding of the upper mold frame and the lower mold frame can be limited and sealed when the upper mold frame and the lower mold frame are closed, and the phenomenon that the mold cannot slide easily when the injection mold is used is avoided as much as possible. The problems that the upper mold frame and the lower mold frame slide relative to each other due to shaking of the injection mold, so that injection liquid overflows from a gap between the upper mold frame and the lower mold frame, the injection liquid is wasted, and the forming quality of injection products is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely relates to a kind of injection mold of anti-overflow material. BACKGROUND

[0002] Injection mold is a special tool used in plastic injection molding process. Injection mold obtains finished product by injecting heated and molten plastic into mold cavity, and then cooling and solidifying. The principle is to inject molten plastic material into mold cavity under high pressure, and then take out the molded product after cooling.

[0003] The injection mold in the prior art is divided into a fixed mold and a movable mold. Since the fixed mold and the movable mold are gap-fitted, there is a certain gap between them when the mold is closed. When the movable mold extrudes the injection liquid between the fixed mold, the injection liquid is easily shaken between the fixed mold and the movable mold under the influence of pressure, causing the injection liquid to overflow from the gap between the fixed mold and the movable mold, resulting in waste of injection liquid and affecting the molding quality of the injection product. In addition, the overflowed injection liquid will adhere to the outside of the injection mold, and the staff needs to clean the injection mold, thus increasing the work intensity of the staff and reducing the practicability of the injection mold. SUMMARY

[0004] The utility model aims to provide an injection mold with anti-overflow material to solve the above-mentioned problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection mold with anti-overflow material, comprising a bracket, a lower mold frame fixedly installed on the bracket, and a lower mold fixedly installed on the lower mold frame, further comprising: an upper mold frame vertically slidingly arranged on the lower mold frame, and an upper mold fixedly installed on the upper mold frame and cooperating with the lower mold; a sealing assembly is arranged between the lower mold frame and the upper mold frame.

[0006] Further, the sealing assembly comprises two butt joints provided on the lower mold frame, a connecting piece slidingly inserted into the butt joint, and the connecting piece is fixedly installed on the upper mold.

[0007] Further, the connecting piece comprises a vertical plate fixedly installed on the upper mold, a horizontal plate fixedly installed on the vertical plate, and a sealing insertion slot formed between the vertical plate and the horizontal plate.

[0008] Further, the sealing assembly further comprises a movable plate slidingly inserted into the butt joint, and a plurality of elastic pieces are arranged between the movable plate and the butt joint; a sealing plate cooperating with the sealing insertion slot is fixedly installed on the top surface of the movable plate.

[0009] Further, the elastic member is a tension spring, one end of the tension spring is fixedly installed on the movable plate, and the other end of the tension spring is fixedly installed in a groove in the butt joint groove.

[0010] Further, a butt plate is fixedly installed on the bottom surface of the movable plate, a chamfered inclined surface is arranged on the butt plate, an extension plate is fixedly installed on the bottom surface of the transverse plate, and the extension plate slides along the chamfered inclined surface.

[0011] Further, a sealing member is arranged on the bottom surface of the transverse plate, the sealing member is arranged on the extension plate, and the sealing member is a rubber ring.

[0012] In the above technical solution, the anti-overflow injection mold has the following beneficial effects: the sealing assembly is arranged, so that the sliding of the upper mold frame and the lower mold frame can be limited and sealed when the upper mold frame and the lower mold frame are combined, and the relative sliding between the upper mold frame and the lower mold frame caused by the shaking of the injection mold during use is avoided as much as possible, so that the overflow of the injection liquid from the gap between the upper mold frame and the lower mold frame is avoided, and the waste of the injection liquid and the influence on the forming quality of the injection product are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to these drawings.

[0014] Figure 1 The overall structural schematic diagram provided by the embodiments of the present application is shown in the figure.

[0015] Figure 2 The overall structural schematic diagram provided by the embodiments of the present application is shown in the figure. Figure 1 The cross-sectional structural schematic diagram provided by the embodiments of the present application is shown in the figure.

[0016] Figure 3 The structural schematic diagram of A in the figure provided by the embodiments of the present application is shown in the figure. Figure 2 The structural schematic diagram of B in the figure provided by the embodiments of the present application is shown in the figure.

[0017] Figure 4 The structural schematic diagram of B in the figure provided by the embodiments of the present application is shown in the figure. Figure 2 The structural schematic diagram of B in the figure provided by the embodiments of the present application is shown in the figure.

[0018] Explanation of reference signs:

[0019] 1, support; 2, fixed plate; 3, ejection plate; 4, ejection spring; 5, ejector pin; 6, lower mold base; 61, lower mold; 7, upper mold base; 71, upper mold; 711, cavity; 72, connecting piece; 721, vertical plate; 722, horizontal plate; 73, extension plate; 8, injection top plate; 81, injection cylinder; 82, injection tube; 83, communication pipe; 84, shunt pipe; 91, butt joint groove; 92, movable plate; 93, elastic member; 94, groove; 95, abutment plate; 96, sealing plate; 97, sealing member; 10, clamping plate; 11, clamping pin. DETAILED DESCRIPTION

[0020] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0021] Please refer to Figures 1-4 The utility model discloses an anti -overflow injection mold, including support 1, the fixed installation of support 1 has lower mold base 6, the fixed installation of lower mold base 6 has lower mold 61, still include: upper mold base 7, it is vertically slidingly arranged on lower mold base 6, and the fixed installation of upper mold base 7 has the upper mold 71 that cooperates with lower mold 61, the sealing assembly is arranged between lower mold base 6 and upper mold base 7.

[0022] In the above technical scheme, by utilizing the sealing assembly, when the upper mold base 7 and the lower mold base 6 are closed, the sliding of the upper mold base 7 and the lower mold base 6 can be limited and sealed, which can avoid the relative sliding between the upper mold base 7 and the lower mold base 6 caused by the shaking of the injection mold during use, so that the injection liquid can not overflow from the gap between the upper mold base 7 and the lower mold base 6, thereby avoiding the waste of injection liquid and affecting the forming quality of the injection product.

[0023] Specifically, the sealing assembly includes two butt joint grooves 91 opened on the lower mold base 6, and the connecting piece 72 is slidingly inserted into the inside of the butt joint groove 91, and the connecting piece 72 is fixedly installed on the upper mold 71.

[0024] In the above technical scheme, by utilizing the butt joint groove 91 opened on the lower mold base 6 and the connecting piece 72 on the upper mold 71, the positioning between the upper mold base 7 and the lower mold base 6 can be guided.

[0025] Specifically, the connecting piece 72 includes a vertical plate 721 fixedly installed on the upper mold 71, a horizontal plate 722 fixedly installed on the vertical plate 721, and a sealing insertion groove formed between the vertical plate 721 and the horizontal plate 722.

[0026] Further, the sealing assembly further comprises a movable plate 92 slidingly arranged in the butt joint groove 91, and a plurality of elastic members 93 are arranged between the movable plate 92 and the butt joint groove 91; a sealing plate 96 matched with the sealing slot is fixedly installed on the top surface of the movable plate 92.

[0027] Further, the bottom surface of the movable plate 92 is fixedly installed with an abutting plate 95, the abutting plate 95 is provided with a chamfered slope, the bottom surface of the horizontal plate 722 is fixedly installed with an extension plate 73, and the extension plate 73 slides along the chamfered slope.

[0028] In the above technical solution, by using the elastic members 93, when the upper die holder 7 and the lower die holder 6 are closed, the extension plate 73 on the horizontal plate 722 can abut against the abutting plate 95 and slide along the chamfered slope of the abutting plate 95, so that the sealing plate 96 on the movable plate 92 can slide under the action of overcoming the elastic force of the elastic members 93, thereby enabling the sealing plate 96 to be clamped into the sealing slot formed between the horizontal plate 722 and the vertical plate 721, thereby avoiding the situation that the upper die 71 and the lower die 61 shake when they are closed.

[0029] Specifically, the elastic member 93 is a tension spring, one end of the tension spring is fixedly installed on the movable plate 92; and a groove 94 is formed in the inner portion of the butt joint groove 91, and the other end of the tension spring is fixedly installed in the groove 94.

[0030] In the above technical solution, by using the tension spring, the sealing plate 96 on the movable plate 92 can slide under the action of overcoming the elastic force of the tension spring, and when the upper die 71 and the lower die 61 are separated, the sealing plate 96 can be quickly reset.

[0031] Specifically, the bottom surface of the horizontal plate 722 is further provided with a sealing member 97, the sealing member 97 is arranged on the extension plate 73, and the sealing member 97 is a rubber ring.

[0032] In the above technical solution, by using the sealing member 97, the sealing effect of the upper die 71 and the lower die 61 when they are closed can be further improved, thereby further avoiding the overflow as much as possible.

[0033] Specifically, the upper die 71 is provided with a mold cavity 711, and the lower die 61 is arranged in the mold cavity 711.

[0034] Further, the top surface of the upper die holder 7 is fixedly provided with an injection molding top plate 8, the top surface of the injection molding top plate 8 is fixedly provided with an injection molding cylinder 81, the injection molding cylinder 81 is communicated with an injection molding pipe 82, the middle part of the upper mold 71 is fixedly provided with a communication pipe 83, the top end of the communication pipe 83 is communicated with the injection molding pipe 82, and the bottom end of the communication pipe 83 is communicated with two shunt pipes 84, and the shunt pipes 84 are communicated in the mold cavity 711.

[0035] In the above technical scheme, by using the injection molding pipe 82 and the communication pipe 83, the injection liquid can flow along the injection molding pipe 82 and the communication pipe 83, and by means of the shunt pipe 84, the injection liquid can flow into the mold cavity 711, thereby achieving the effect of being able to injection molding.

[0036] Specifically, the bracket 1 is fixedly provided with a fixed plate 2, the lower die holder 6 is fixedly provided on the top surface of the fixed plate 2, the ejection plate 3 is movably arranged between the fixed plate 2 and the bracket 1, the ejection plate 3 is provided with a plurality of ejection springs 4 between the fixed plate 2, and the top surface of the fixed plate 2 is fixedly provided with a plurality of ejector pins 5, and the ejector pins 5 are slidingly inserted into the fixed plate 2 and the lower mold 61.

[0037] In the above technical scheme, by using the ejection plate 3, after the upper die holder 7 and the lower die holder 6 are separated, the ejection plate 3 is used to slide the ejector pins 5, so that the mold after injection molding on the lower die holder 6 is quickly demolded.

[0038] Specifically, the upper die holder 7 is rotatably provided with a clamping plate 10, and the lower die holder 6 is fixedly provided with a clamping pin 11 which is clamped and matched with the clamping plate 10.

[0039] In the above technical scheme, by using the clamping plate 10 and the clamping pin 11, the sealing effect of the mold closing of the upper die holder 7 and the lower die holder 6 is further achieved.

[0040] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the present application.

Claims

1. An anti-overflow injection mold comprising a support (1), characterized in that, The bracket (1) is fixedly installed with a lower mold frame (6), the lower mold frame (6) is fixedly installed with a lower mold (61), and further comprises: An upper mold frame (7) is vertically slidably arranged on the lower mold frame (6), and the upper mold frame (7) is fixedly installed with an upper mold (71) matched with the lower mold (61); A sealing assembly is arranged between the lower mold frame (6) and the upper mold frame (7).

2. The anti-overflow injection mold according to claim 1, wherein, The sealing assembly comprises two butt joints (91) formed on the lower mold frame (6), the butt joints (91) are slidably inserted with connecting pieces (72), and the connecting pieces (72) are fixedly installed on the upper mold (71).

3. A flash prevention injection mold according to claim 2, wherein The connecting piece (72) comprises a vertical plate (721) fixedly installed on the upper mold (71), a horizontal plate (722) fixedly installed on the vertical plate (721), and a sealing slot formed between the vertical plate (721) and the horizontal plate (722).

4. A flash prevention injection mold according to claim 3, wherein The sealing assembly further comprises a movable plate (92) slidably inserted in the butt joint (91), and a plurality of elastic pieces (93) are arranged between the movable plate (92) and the butt joint (91). A sealing plate (96) matched with the sealing slot is fixedly installed on the top surface of the movable plate (92).

5. A flash prevention injection mold according to claim 4, wherein The elastic piece (93) is a tension spring, one end of the tension spring is fixedly installed on the movable plate (92); A groove (94) is formed in the inside of the butt joint (91), and the other end of the tension spring is fixedly installed in the groove (94).

6. A flash prevention injection mold according to claim 4, wherein An abutting plate (95) is fixedly installed on the bottom surface of the movable plate (92), the abutting plate (95) is provided with a chamfered slope, an extension plate (73) is fixedly installed on the bottom surface of the horizontal plate (722), and the extension plate (73) slides along the chamfered slope.

7. A flash prevention injection mold according to claim 6, wherein A sealing piece (97) is further arranged on the bottom surface of the horizontal plate (722), the sealing piece (97) is arranged on the extension plate (73), and the sealing piece (97) is a rubber ring.

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