Plastic injection equipment convenient for mounting mold

Abstract

The utility model discloses plastic injection equipment convenient for mounting a mold, which comprises a plastic injection table, a plastic injection unit is fixedly mounted at the top end of the plastic injection table, and an injection mold structure is fixedly mounted in the plastic injection table. According to the injection mold structure, the upper mold and the lower mold are convenient to disassemble and assemble subsequently through the clamping grooves, the clamping plates and the screws, the clamping plates are clamped in the clamping grooves in the installation process, installation deviation after the upper mold and the lower mold are replaced is avoided, the upper mold and the lower mold are accurately aligned in the mold closing process through the additionally-arranged positioning holes and the additionally-arranged positioning columns, and the mold closing precision is improved. The plastic injection accuracy is further improved, injection molding material overflow is reduced, the injection molding quality and efficiency are improved, cooling cavities and through holes are formed in the front outer wall and the rear outer wall of the lower mold shell, injection molded workpieces can be cooled, the injection molding effect is improved, and demolding is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic injection, in particular to a plastic injection device which is convenient for installing a mold. Background Art

[0002] Plastic injection equipment is a main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. That is, with the help of the thrust of the screw, the plasticized molten plastic is injected into the closed mold cavity, and the product is obtained after solidification and shaping.

[0003] The installation steps of the upper and lower molds on the existing plastic injection equipment are cumbersome, making disassembly and assembly inconvenient, and the upper and lower molds need to be aligned up and down before they can be installed and fixed. Some small deviations are difficult to find during installation, which makes it difficult to align the subsequent injection head with the injection hole, and the injection material is easy to overflow, affecting the injection quality and efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic injection device that is convenient for installing a mold, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the utility model provides the following technical solutions: a plastic injection device that is convenient for installing molds, comprising a plastic injection table, a plastic injection unit is fixedly installed on the top of the plastic injection table, and an injection mold structure is fixedly installed inside the plastic injection table.

[0006] The injection mold structure includes a lower mold assembly, which is fixedly mounted on the bottom side of the plastic injection platform. Cooling cavities are fixedly mounted on the front and rear sides of the lower mold assembly, and an upper mold assembly is mounted above the lower mold assembly.

[0007] As a further preferred embodiment of the present technical solution, the plastic injection station includes a base, an operation button is provided on the front side of the base, and a bracket is fixedly connected to the top of the base.

[0008] As a further preferred embodiment of the present technical solution, the plastic injection unit includes a cylinder, which is installed in the middle of the top end of the bracket, and the driving end of the cylinder is fixedly connected to an injection cylinder through the top side of the bracket, and an injection head is fixedly connected to the discharge port on the bottom side of the injection cylinder, and a glue storage box is provided at one end of the top side of the bracket, and a pump body is installed at the discharge port of the glue storage box through a pipeline, and a connecting hose is fixedly connected to the discharge port of the pump body, and the connecting hose passes through the top side of the bracket and is connected to the feed port of the injection cylinder.

[0009] As a further preferred embodiment of the present technical solution, the lower mold assembly includes a bottom plate, which is fixedly connected to the end surface of the base, and a slot is provided on the left and right sides of the bottom plate, a card plate is clamped in the slot, and a screw is threadedly connected to the front and rear ends of the slot, the bottom plate and the card plate are connected by a screw, the top side of the card plate is fixedly connected to the lower mold shell, the front and rear sides of the lower mold shell are arranged with through holes, and the bottom plate is fixedly connected to columns near the corners and is connected to the top side of the bracket.

[0010] As a further preferred embodiment of the present technical solution, the cooling cavity is fixedly connected to the front and rear sides of the lower mold shell, and air inlet holes are provided on the outer surfaces of the lower mold assembly.

[0011] In the above technical solution, cooling cavities and through holes are provided on the front and rear outer walls of the lower mold shell, which can cool the workpiece being injected, improve the injection molding effect and facilitate demoulding.

[0012] As a further preferred embodiment of the present technical solution, the upper mold assembly includes a top plate, which is slidably connected to the column, and two card slots are provided at the left and right ends of the bottom side of the top plate, and two card plates are carded in the two card slots, and two screws are threadedly connected to the front and rear of the two card slots, and the top plate is connected to the two card plates through the two screws, and the bottom side of the two card plates is fixedly connected to the upper mold shell, and injection holes are provided in the middle of the top plate and the upper mold shell, and the left and right outer walls of the top plate are fixedly connected to connecting plates, and hydraulic cylinders are installed on the left and right end surfaces of the base, and the hydraulic cylinders are connected to the connecting plates.

[0013] In the above technical solution, the upper and lower molds are convenient for subsequent disassembly and assembly by means of the provided card slots, card plates and screws, and the card plates are connected in the card slots during installation to avoid displacement of the upper and lower molds after replacement.

[0014] As a further preferred embodiment of the technical solution, positioning holes are provided on all sides of the lower mold shell, and positioning columns are fixedly connected on all sides of the bottom side of the upper mold shell, and the positioning columns are snap-fitted with the positioning holes.

[0015] In the above technical solution, the positioning holes and positioning columns are provided so that the upper and lower molds can be accurately aligned when the molds are closed, further improving the accuracy of plastic injection.

[0016] The utility model provides a plastic injection device that is convenient for installing a mold, and has the following beneficial effects:

[0017] (1) The utility model installs the injection mold structure, and the upper and lower molds are convenient for subsequent disassembly and assembly of the upper and lower molds through the provided card slots, card plates and screws. During installation, the card plates are connected in the card slots to avoid displacement of the upper and lower molds after replacement. In addition, the provided positioning holes and positioning columns enable the upper and lower molds to be accurately aligned when the molds are closed, thereby further improving the accuracy of plastic injection, reducing the overflow of injection molding materials, and improving the injection molding quality and efficiency.

[0018] (2) The utility model can cool the workpiece being injected by arranging cooling chambers and through holes on the front and rear outer walls of the lower mold shell, thereby improving the injection molding effect and facilitating demoulding. The arranged cylinder drives the injection head to extend into the injection hole to inject plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the plastic injection equipment of the utility model;

[0020] Figure 2 The utility model is Figure 1 Structural diagram of the injection mold structure;

[0021] Figure 3 The utility model is Figure 2 Schematic diagram of the structure inside the cooling chamber;

[0022] Figure 4 The utility model is Figure 1 Schematic diagram of the structure of the plastic injection unit;

[0023] In the figure: 1. plastic injection station; 2. plastic injection unit; 3. injection mold structure; 11. base; 12. operation button; 13. bracket; 21. cylinder; 22. injection cylinder; 23. injection head; 24. glue storage box; 25. pump body; 26. connecting hose; 31. lower mold assembly; 32. cooling chamber; 33. upper mold assembly; 311. bottom plate; 312. slot one; 313. card board one; 314. screw one; 315. lower mold shell; 316. positioning hole; 317. through hole; 318. column; 321. air inlet; 331. top plate; 332. slot two; 333. card board two; 334. upper mold shell; 335. injection hole; 336. screw two; 337. connecting plate; 338. hydraulic cylinder; 339. positioning column. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] The utility model provides a technical solution: Figure 1As shown, in this embodiment, a plastic injection device that is convenient for installing a mold includes a plastic injection platform 1, a plastic injection unit 2 is fixedly installed on the top of the plastic injection platform 1, an injection mold structure 3 is fixedly installed inside the plastic injection platform 1, and the plastic injection platform 1 includes a base 11, an operation button 12 is arranged on the front side of the base 11, and a bracket 13 is fixedly connected to the top of the base 11.

[0026] like Figure 1 and Figure 4 As shown, the plastic injection unit 2 includes a cylinder 21, which is installed in the middle of the top of the bracket 13. The driving end of the cylinder 21 passes through the top side of the bracket 13 and is fixedly connected to an injection cylinder 22. The injection cylinder 22 is fixedly connected to an injection head 23 at the bottom discharge port. A glue storage box 24 is provided at one end of the top side of the bracket 13. A pump body 25 is installed at the discharge port of the glue storage box 24 through a pipeline. A connecting hose 26 is fixedly connected to the discharge port of the pump body 25. The connecting hose 26 passes through the top side of the bracket 13 and is connected to the feed port of the injection cylinder 22. The arranged cylinder 21 drives the injection head 23 to extend into the injection hole 335 to perform plastic injection.

[0027] like Figure 2 and Figure 3As shown, the injection mold structure 3 includes a lower mold assembly 31, which is fixedly mounted on the bottom side of the plastic injection station 1, and a cooling cavity 32 is fixedly mounted on the front and rear sides of the lower mold assembly 31. An upper mold assembly 33 is mounted above the lower mold assembly 31, and the lower mold assembly 31 includes a bottom plate 311, which is fixedly connected to the end surface of the base 11, and a card slot 312 is opened on the left and right sides of the bottom plate 311, and a card plate 313 is carded in the card slot 312. The front and rear ends of the card slot 312 are both threadedly connected with a screw 314, and the bottom plate 311 and the card plate 313 are connected through the screw 314. The top side of the card plate 313 is fixedly connected to the lower mold shell 315, and the front and rear sides of the lower mold shell 315 are arranged with through holes 317. The bottom plate 311 is fixedly connected to the column 318 near the corner, and is connected to the top side of the bracket 13. The cooling cavity 32 is fixedly connected to the front and rear sides of the lower mold shell 315. The outer surface of the lower mold assembly 31 is provided with an air inlet 321. By arranging the cooling cavity 32 and the through holes 321 on the front and rear outer walls of the lower mold shell 315, the workpiece to be injected can be cooled, the injection molding effect can be improved, and demoulding is convenient. The upper mold assembly 33 includes a top plate 331, and the top plate 331 slides The top plate 331 is movably connected to the column 318, and the left and right ends of the bottom side of the top plate 331 are provided with a second card slot 332, and the second card plate 333 is clamped in the second card slot 332. The second card slot 332 is threadedly connected with a second screw 336 at the front and rear of the second card slot 332. The top plate 331 is connected to the second card plate 333 through the second screw 336. The bottom side of the second card plate 333 is fixedly connected to an upper mold shell 334. The top plate 331 and the middle part of the upper mold shell 334 are provided with an injection hole 335. The left and right outer walls of the top plate 331 are fixedly connected to a connecting plate 337. Hydraulic cylinders 338 are installed on the left and right end surfaces of the base 11. The hydraulic cylinder 338 is connected to the connecting plate 337. The mold shell 315 is provided with positioning holes 316 on all sides, and the bottom side of the upper mold shell 334 is fixedly connected with positioning columns 339 on all sides. The positioning columns 339 are clamped with the positioning holes 316. By installing the injection mold structure 3, the upper and lower molds are convenient for subsequent disassembly and assembly of the upper and lower molds through the provided clamping grooves, clamping plates and screws. During installation, the clamping plates are clamped in the clamping grooves to avoid displacement of the upper and lower molds after replacement. In addition, the positioning holes 316 and positioning columns 339 are provided to enable the upper and lower molds to be accurately aligned when the molds are closed, thereby further improving the accuracy of plastic injection, reducing the overflow of injection molding materials, and improving the quality and efficiency of injection molding.

[0028] The utility model provides a plastic injection device that is convenient for installing molds. The specific working principle is as follows: when installing the upper and lower molds, the card plate is inserted into the card slot, and the card plate is connected and fixed to the bottom plate and the top plate by screws, which is convenient for disassembly and assembly to avoid deviation; when injecting, the hydraulic cylinder 338 is started to make the upper mold shell 334 and the lower mold shell 315 close the mold, so that the positioning column 339 is inserted into the positioning hole 316, and at the same time, the cylinder 21 is started to make the injection head 23 extend into the injection hole 335, and the material is injected into the mold cavity to form it.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic injection device that is convenient for installing a mold, comprising a plastic injection station (1), characterized in that: A plastic injection unit (2) is fixedly installed on the top of the plastic injection platform (1), and an injection mold structure (3) is fixedly installed inside the plastic injection platform (1); The injection mold structure (3) comprises a lower mold assembly (31), the lower mold assembly (31) is fixedly mounted on the bottom side of the plastic injection platform (1), cooling cavities (32) are fixedly mounted on the front and rear sides of the lower mold assembly (31), and an upper mold assembly (33) is mounted above the lower mold assembly (31); The lower mold assembly (31) comprises a bottom plate (311), the bottom plate (311) is fixedly connected to the end surface of the base (11), the bottom plate (311) is provided with a card slot (312) on the left and right sides, a card plate (313) is carded in the card slot (312), the front and rear ends of the card slot (312) are both threadedly connected with a screw rod (314), the bottom plate (311) and the card plate (313) are connected via a screw rod (314), the top side of the card plate (313) is fixedly connected with a lower mold shell (315), the front and rear sides of the lower mold shell (315) are arranged with through holes (317), and the bottom plate (311) is fixedly connected with a column (318) near the corner, and is connected to the top side of the bracket (13); The upper mold assembly (33) comprises a top plate (331), the top plate (331) being slidably connected to the column (318), a second clamping groove (332) being provided at the left and right ends of the bottom side of the top plate (331), a second clamping plate (333) being clamped in the second clamping groove (332), a second screw rod (336) being threadedly connected at the front and rear of the second clamping groove (332), the top plate (331) and the second clamping plate (333) being connected via the second screw rod (336), the bottom side of the second clamping plate (333) being fixedly connected to an upper mold shell (334), injection holes (335) being provided in the middle of the top plate (331) and the upper mold shell (334), a connecting plate (337) being fixedly connected to the left and right outer walls of the top plate (331), and a hydraulic cylinder (338) being installed on the left and right end surfaces of the base (11), the hydraulic cylinder (338) being connected to the connecting plate (337).

2. A plastic injection device for easy mold installation according to claim 1, characterized in that: The plastic injection station (1) comprises a base (11), an operating button (12) is arranged on the front side of the base (11), and a bracket (13) is fixedly connected to the top of the base (11).

3. The plastic injection device for easy mold installation according to claim 1, characterized in that: The plastic injection unit (2) comprises a cylinder (21), the cylinder (21) being mounted at the middle of the top end of the bracket (13), the driving end of the cylinder (21) passing through the top side of the bracket (13) and being fixedly connected to an injection molding cylinder (22), the bottom side discharge port of the injection molding cylinder (22) being fixedly connected to an injection molding head (23), a plastic storage box (24) being arranged at one end of the top side of the bracket (13), a pump body (25) being mounted at the discharge port of the plastic storage box (24) via a pipeline, a connecting hose (26) being fixedly connected at the discharge port of the pump body (25), the connecting hose (26) passing through the top side of the bracket (13) and being connected to the feed port of the injection molding cylinder (22).

4. The plastic injection device for facilitating mold installation according to claim 1, characterized in that: The cooling cavity (32) is fixedly connected to the front and rear sides of the lower mold shell (315), and the outer surface of the lower mold assembly (31) is provided with air inlet holes (321).

5. The plastic injection device for facilitating mold installation according to claim 1, characterized in that: Positioning holes (316) are provided on all sides of the lower mold shell (315), and positioning columns (339) are fixedly connected to all sides of the bottom side of the upper mold shell (334), and the positioning columns (339) are snap-fitted into the positioning holes (316).

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