Anti-deformation injection mold for forming polypropylene cup body

Abstract

The utility model discloses an anti-deformation injection mold for molding a polypropylene cup body, which relates to the technical field of injection molds and comprises a fixed base, a mounting seat is slidably arranged at the upper end of the fixed base, and cooling components are arranged in the fixed base and the mounting seat. According to the injection mold, the spring can be extruded in the connecting process through the mounting base, the connecting sleeve is pressed into the groove, and after injection molding and cooling are completed, the mounting base drives the upper mold to leave the fixed base due to the elastic potential energy of the spring; the lower mold and the upper mold are fixed in the fixing base and the mounting base through the bolts correspondingly, the connecting face of the lower mold and the upper mold can be smooth by arranging the containing groove, the situation that connection of the lower mold and the upper mold is not stable is reduced, and the demolding efficiency can be improved. And the manufacturing cost of the mold is reduced, and the practicability of the mold is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an anti-deformation injection mold for forming a polypropylene cup body. Background Art

[0002] Injection molding molds, also known as molds, are molds made in proportion to the shape and structure of the actual object. They use pressing or pouring methods to make the material into a certain shape. In production, the plastic is first heated and melted in the heated barrel of the injection molding machine, and then the molten plastic is poured into the mold cavity through the nozzle under the push of the injection molding machine screw or piston. Finally, it hardens and takes shape in the cavity. This is the simple process of injection molding, and the mold used for injection molding is called an injection molding mold.

[0003] However, during the use of the injection mold, a large temperature difference inside the mold can easily cause deformation, affecting normal processing and use. For example, a deformation-resistant automobile injection mold recorded in the patent announcement number CN 211137978 U is provided with a cooling groove, so that during the use of the device, a complete cooling water channel structure is formed through the lower cooling groove, which can conveniently and accurately perform heat exchange and cooling in the middle position of the mold, inevitably causing a cooling temperature difference to prevent deformation. However, this mold cannot be demolded quickly after injection molding, affecting production efficiency, and if other products need to be produced, corresponding molds need to be made, which increases additional mold production costs and causes economic losses.

[0004] Based on this, an anti-deformation injection mold for forming a polypropylene cup body is now provided, which can eliminate the disadvantages of the existing molds. Utility Model Content

[0005] The utility model aims to provide an anti-deformation injection mold for forming a polypropylene cup body, so as to solve the problem that the product cannot be quickly demoulded in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An anti-deformation injection mold for forming a polypropylene cup body, comprising a fixed base;

[0008] A mounting seat is slidably provided on the upper end of the fixed base, a cooling assembly is provided inside the fixed base and the mounting seat, a lower mold and an upper mold are respectively provided inside the fixed base and the mounting seat, and a fixing assembly is provided on the lower mold and the upper mold.

[0009] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0010] In an optional scheme: grooves are evenly distributed on the surface of the fixed base, a guide rod is provided at the bottom of the groove, a spring is provided on the outer side of the guide rod, the lower end of the spring is connected to the bottom of the groove, a connecting sleeve is provided at the upper end of the spring, the connecting sleeve is slidably sleeved on the outer side of the guide rod, a guide hole is provided on the mounting seat, a guide rod is slidably provided inside the guide hole, a threaded column is provided at the upper end of the guide rod, and a nut is threaded on the outer side of the threaded column.

[0011] In an optional solution: the cooling component includes a water inlet pipe, which is arranged on the surface of the fixed base and the mounting seat, and a cooling channel is provided inside the fixed base and the mounting seat, the input end of the cooling channel is connected to the end of the water inlet pipe, and the output end of the cooling channel is connected to the water outlet pipe, and the water outlet pipe is arranged on the surface of the fixed base and the mounting seat.

[0012] In an optional scheme: the fixed base and the inner wall of the mounting seat are both provided with mounting grooves, the inner wall of the mounting groove is provided with a positioning groove, the bottom of the positioning groove is provided with a threaded hole, the outer sides of the lower mold and the upper mold are provided with protrusions corresponding to the positioning grooves, the surface of the protrusions is provided with positioning holes, the surface of the protrusions is provided with placement grooves, and the inside of the positioning holes is provided with bolts threadedly connected to the threaded holes.

[0013] In an optional solution: a through hole is provided at the upper end of the mounting seat, an exhaust pipe and an injection molding tube are respectively provided inside the through hole, and the exhaust pipe and the injection molding tube are both arranged at the upper end of the upper mold.

[0014] In an optional solution: a sealing groove is provided at the upper end of the lower mold, and a sealing ring corresponding to the sealing groove is provided at the lower end of the upper mold.

[0015] In an optional solution: both ends of the water inlet pipe and the water outlet pipe are provided with connectors.

[0016] In an optional solution: an anti-slip pad is provided at the bottom of the fixed base.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The utility model squeezes the spring and presses the connecting sleeve into the groove during the connection process through the mounting seat. After the injection molding is cooled, the mounting seat drives the upper mold to leave the fixed base due to the elastic potential energy of the spring, making the demoulding of the product more convenient and quick, thereby improving the demoulding efficiency.

[0019] 2. The utility model fixes the lower mold and the upper mold to the inside of the fixed base and the mounting seat respectively by bolts, and by setting the placement groove, the connection surface between the lower mold and the upper mold can be made flat, which reduces the unstable connection between the lower mold and the upper mold, reduces the production cost of the mold, and improves the practicality of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the structural section of the mounting seat of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the fixed base of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the upper mold of the utility model.

[0024] Notes on figure numbers: 100, fixed base; 101, anti-slip pad; 200, groove; 201, guide rod; 202, spring; 203, connecting sleeve; 204, threaded column; 205, nut; 300, mounting seat; 301, guide hole; 302, water inlet pipe; 303, water outlet pipe; 304, connector; 305, cooling channel; 306, mounting groove; 308, positioning groove; 309, threaded hole; 400, lower mold; 401, upper mold; 402, bump; 403, positioning hole; 404, placement groove; 405, bolt; 406, sealing groove; 407, sealing ring; 408, through hole; 409, exhaust pipe; 410, injection molding pipe. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] In one embodiment, Figure 1-Figure 4 As shown, an anti-deformation injection mold for forming a polypropylene cup body includes a fixed base 100 and a mounting seat 300, the mounting seat 300 is slidably provided on the upper end of the fixed base 100, an anti-slip pad 101 is provided at the bottom of the fixed base 100, cooling components are provided inside the fixed base 100 and the mounting seat 300, a lower mold 400 and an upper mold 401 are respectively provided inside the fixed base 100 and the mounting seat 300, and fixed components are provided on the lower mold 400 and the upper mold 401.

[0027] The surface of the fixed base 100 is evenly distributed with grooves 200, the inner bottom of the groove 200 is provided with a guide rod 201, the outer side of the guide rod 201 is sleeved with a spring 202, the lower end of the spring 202 is connected to the inner bottom of the groove 200, the upper end of the spring 202 is provided with a connecting sleeve 203, the connecting sleeve 203 is slidably sleeved on the outer side of the guide rod 201, the mounting seat 300 is provided with a guide hole 301, the guide rod 201 is slidably arranged inside the guide hole 301, the upper end of the guide rod 201 is provided with a threaded column 204, the outer side of the threaded column 204 is threaded with a nut 205, when in use, the mounting seat 300 is made through the guide rod 201 The upper mold 401 is driven to move downward. During this process, the spring 202 is squeezed and the connecting sleeve 203 is pressed into the groove 200, so that the threaded column 204 is exposed, and then the nut 205 is used on the threaded column 204 to complete the fixation between the fixed base 100 and the mounting seat 300, and the lower mold 400 and the upper mold 401 are connected. When the injection molding cooling is completed, the nut 205 is rotated to make it leave the threaded column 204. At this time, due to the elastic potential energy of the spring 202, the mounting seat 300 drives the upper mold 401 to leave the fixed base 100, which facilitates the demoulding of the product.

[0028] The cooling assembly includes a water inlet pipe 302, which is arranged on the surface of the fixed base 100 and the mounting seat 300. A cooling channel 305 is arranged inside the fixed base 100 and the mounting seat 300. The input end of the cooling channel 305 is connected to the end of the water inlet pipe 302, and the output end of the cooling channel 305 is connected to the water outlet pipe 303. The water outlet pipe 303 is arranged on the surface of the fixed base 100 and the mounting seat 300. Connectors 304 are provided at the ends of the water inlet pipe 302 and the water outlet pipe 303. When in use, a water pump is connected to the end of the water inlet pipe 302 to allow water to flow into the cooling channel 305 and cool the injection-molded product, thereby greatly improving the product production efficiency.

[0029] The fixing base 100 and the mounting seat 300 are both provided with mounting grooves 306 on their inner walls, the mounting grooves 306 are provided with positioning grooves 308 on their inner walls, the positioning grooves 308 are provided with threaded holes 309 at their inner bottoms, the lower mold 400 and the upper mold 401 are provided with convex blocks 402 corresponding to the positioning grooves 308 on their outer sides, the convex blocks 402 are provided with positioning holes 403 on their surfaces, the convex blocks 402 are provided with placement grooves 404 on their surfaces, the positioning holes 403 are provided with bolts 405 threadedly connected with the threaded holes 309, the upper end of the lower mold 400 is provided with sealing grooves 406, and the upper mold 401 is provided with a sealing groove 406. 01 A sealing ring 407 corresponding to the sealing groove 406 is provided at the lower end. When in use, the lower mold 400 and the upper mold 401 are respectively installed in the mounting groove 306 on the fixed base 100 and the mounting seat 300, and then the lower mold 400 and the upper mold 401 are respectively fixed in the fixed base 100 and the mounting seat 300 by using bolts 405. By setting the placement groove 404, the connection surface between the lower mold 400 and the upper mold 401 can be made flat, thereby reducing the unstable connection between the lower mold 400 and the upper mold 401.

[0030] A through hole 408 is provided at the upper end of the mounting seat 300, and an exhaust pipe 409 and an injection tube 410 are respectively provided inside the through hole 408. The exhaust pipe 409 and the injection tube 410 are both arranged at the upper end of the upper mold 401. During the injection molding process, the molten plastic is injected into the mold through the injection tube 410. At this time, the exhaust pipe 409 can discharge excess air inside the mold to improve the quality of the product.

[0031] The above embodiment discloses an anti-deformation injection mold for forming a polypropylene cup body. When the mold is used, the lower mold 400 and the upper mold 401 are respectively installed in the mounting groove 306 on the fixed base 100 and the mounting seat 300, and then the lower mold 400 and the upper mold 401 are respectively fixed in the fixed base 100 and the mounting seat 300 by using bolts 405. By setting the placement groove 404, the connection surface between the lower mold 400 and the upper mold 401 can be flat, which reduces the unstable connection between the lower mold 400 and the upper mold 401. Then, the mounting seat 300 drives the upper mold 401 to move downward through the guide rod 201. In this process, the spring 202 is squeezed and the connecting sleeve 203 is pressed into the groove 200, so that the threaded column 204 is exposed. Next, nut 205 is used on threaded column 204 to fix the fixed base 100 and mounting seat 300, and to dock the lower mold 400 with the upper mold 401. At this time, the molten plastic is injected into the mold through injection tube 410. At this time, exhaust pipe 409 can discharge excess air inside the mold to improve product quality. Then, a water pump is connected to the end of water inlet pipe 302 to allow water to flow into cooling channel 305 and cool the injection molded product, thereby greatly improving product production efficiency. After injection cooling is completed, nut 205 is rotated to leave threaded column 204. At this time, due to the elastic potential energy of spring 202, mounting seat 300 drives upper mold 401 to leave fixed base 100, thereby facilitating product demoulding.

[0032] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An anti-deformation injection mold for forming a polypropylene cup body, comprising a fixed base (100); It is characterized in that A mounting seat (300) is slidably provided on the upper end of the fixed base (100), cooling components are provided inside the fixed base (100) and the mounting seat (300), a lower mold (400) and an upper mold (401) are provided inside the fixed base (100) and the mounting seat (300), respectively, and a fixing component is provided on the lower mold (400) and the upper mold (401); The surface of the fixed base (100) is evenly distributed with grooves (200), the inner bottom of the groove (200) is provided with a guide rod (201), the outer side of the guide rod (201) is sleeved with a spring (202), the lower end of the spring (202) is connected to the inner bottom of the groove (200), the upper end of the spring (202) is provided with a connecting sleeve (203), the connecting sleeve (203) is slidably sleeved on the outer side of the guide rod (201), the mounting seat (300) is provided with a guide hole (301), the guide rod (201) is slidably provided inside the guide hole (301), the upper end of the guide rod (201) is provided with a threaded column (204), and the outer side of the threaded column (204) is threaded with a nut (205).

2. The anti-deformation injection mold for forming a polypropylene cup body according to claim 1, characterized in that: The cooling assembly comprises a water inlet pipe (302), the water inlet pipe (302) being arranged on the surface of the fixed base (100) and the mounting seat (300), a cooling channel (305) being arranged inside the fixed base (100) and the mounting seat (300), the input end of the cooling channel (305) being connected to the end of the water inlet pipe (302), the output end of the cooling channel (305) being connected to the water outlet pipe (303), and the water outlet pipe (303) being arranged on the surface of the fixed base (100) and the mounting seat (300).

3. The anti-deformation injection mold for forming a polypropylene cup body according to claim 1, characterized in that: The fixing base (100) and the mounting base (300) are both provided with mounting grooves (306) on their inner walls, the mounting grooves (306) are provided with positioning grooves (308) on their inner walls, the positioning grooves (308) are provided with threaded holes (309) at their inner bottoms, the lower mold (400) and the upper mold (401) are provided with convex blocks (402) corresponding to the positioning grooves (308) on their outer sides, the convex blocks (402) are provided with positioning holes (403) on their surfaces, the convex blocks (402) are provided with placement grooves (404) on their surfaces, and the locating holes (403) are provided with bolts (405) threadedly connected to the threaded holes (309) inside.

4. The anti-deformation injection mold for forming a polypropylene cup body according to claim 3, characterized in that: A through hole (408) is provided at the upper end of the mounting seat (300), an exhaust pipe (409) and an injection pipe (410) are respectively provided inside the through hole (408), and the exhaust pipe (409) and the injection pipe (410) are both arranged at the upper end of the upper mold (401).

5. The anti-deformation injection mold for forming a polypropylene cup body according to claim 3, characterized in that: The upper end of the lower mold (400) is provided with a sealing groove (406), and the lower end of the upper mold (401) is provided with a sealing ring (407) corresponding to the sealing groove (406).

6. The anti-deformation injection mold for forming a polypropylene cup body according to claim 2, characterized in that: Connectors (304) are provided at the ends of the water inlet pipe (302) and the water outlet pipe (303).

7. The anti-deformation injection mold for forming a polypropylene cup body according to claim 1, characterized in that: An anti-slip pad (101) is provided at the bottom of the fixed base (100).

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