Pressure-resistant gold plastic rubber mold frame

Abstract

The utility model relates to the technical field of plastic mould frames, in particular to a pressure-resistant gold plastic mould frame. Comprising a base assembly, a lower die assembly, a cooling assembly and an upper die assembly, the base assembly comprises a base plate and a sleeve, the lower die assembly comprises a lower die, the cooling assembly comprises a water inlet pipe, the upper die assembly comprises an upper die, and hydraulic cylinders are installed at the four corners of the top of the base plate through bolts; a stabilizing column is welded to the top of the lower mold, a heating plate is arranged on the inner side of a heating groove, flow dividing pipes are symmetrically connected to the two ends of a three-way pipe, the ends, away from a water inlet pipe, of the flow dividing pipes are connected with a water drainage pipe through the three-way pipe, and flow guide rings are connected to the inner walls of the flow dividing pipes. And after injection of the plastic is completed, a valve of a cooling water source is opened, cooling water flows into the water inlet pipe and is shunted through the shunting pipe, and the cooling water in the shunting pipe is used for rapidly cooling the casting, so that the molding time is shortened, and subsequent demolding is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic mold frames, in particular to a pressure-resistant gold plastic mold frame. Background Art

[0002] At present, with the rapid development of social economy, the application of molds is becoming more and more extensive. The application of existing molds involves multiple products (such as automobiles, aerospace, daily necessities, electrical communications, medical products and equipment, etc.). As long as the number of products is large, molds will be used for production, and the mold frame is an inseparable part of the mold.

[0003] Pressure-resistant plastic mold frame is a mold frame designed for injection molding and is used to manufacture plastic products that are resistant to high pressure and high temperature.

[0004] When using existing pressure-resistant gold plastic mold frames, they are unable to achieve the dual functions of heating and cooling the plastic during the plastic injection molding process. This makes it impossible to maintain the temperature of the mold, which easily causes the plastic to solidify prematurely. At the same time, it also increases the time it takes to solidify and form the desired product shape. Correspondingly, the demolding time also needs to be extended, reducing work efficiency. Utility Model Content

[0005] In response to the above problems, the purpose of the present invention is to provide a pressure-resistant gold-plastic mold frame to solve the problem that the dual functions of heating and cooling the plastic during the molding process cannot be achieved. This makes it impossible to maintain the temperature of the mold, which easily causes the plastic to solidify prematurely. At the same time, the time it takes to solidify and form the desired product shape is increased, and the corresponding demolding time also needs to be extended, which reduces work efficiency. The heating plate is kept in a working state and used to maintain the temperature of the mold, thereby preventing the plastic from solidifying prematurely. By slowing down the flow rate of the cooling water by the guide ring, the time it takes for the cooling water to cool the casting can be increased, thereby ensuring the cooling effect of the casting.

[0006] To achieve the above objectives, the utility model adopts the following technical solution: a pressure-resistant gold-plastic mold frame, comprising a base assembly, a lower mold assembly, a cooling assembly, and an upper mold assembly, the base assembly comprising a base plate and a sleeve, the lower mold assembly comprising a lower mold, the cooling assembly comprising a water inlet pipe, the upper mold assembly comprising an upper mold, the four corners of the top of the base plate are equipped with hydraulic cylinders by bolts, the inner side of the upper mold is connected to a guide column, the inner side of the lower mold is provided with a lower mold groove, the top of the lower mold is welded with a stabilizing column, the inner side of the lower mold is provided with a heating groove, the inner side of the heating groove is provided with a heating plate, the inner side of the lower mold is provided with a cooling groove, one end of the water inlet pipe is connected to a tee pipe, the two ends of the tee pipe are symmetrically connected to a diverter pipe, the end of the diverter pipe away from the water inlet pipe is connected to the drain pipe through the tee pipe, the inner wall of the diverter pipe is connected to a guide ring, the inner side of the bottom of the upper mold is provided with an upper mold groove, and the inner side of the top of the upper mold is provided with a glue inlet hole.

[0007] The beneficial effects of the present invention are as follows: after the cooling water in the water inlet pipe is diverted into the diversion pipe, the cooling water encounters an obstruction of the guide ring during its flow in the diversion pipe, and then the cooling water flow rate is slowed down and continues to flow through the diversion hole. The slowing down of the cooling water flow rate by the guide ring can increase the time for the cooling water to cool the casting, thereby ensuring the cooling effect on the casting. At the same time, the joint arrangement of the heating plate and the diversion pipe realizes the dual functions of heating and cooling in the plastic process.

[0008] Channel for the guide post to slide in order to pass through the setting of the sleeve:

[0009] As a further improvement of the above technical solution: there are four hydraulic cylinders which are electrically connected to the operation panel, there are four sleeves which are welded to the inner side of the upper mold, the top of the base plate is connected to a base base, and the base base is connected to the lower bottom surface of the lower mold away from the top of the base plate.

[0010] The beneficial effects of this improvement are: through the arrangement of the base plate and the base base, the lower mold is fixed and supported, and through the arrangement of the sleeve, a channel is provided for the guide column to slide.

[0011] In order to ensure the tightness of the upper mold and the lower mold:

[0012] As a further improvement of the above technical solution: a mounting groove is symmetrically opened on the inner side of the top of the lower mold, and the guide column is installed inside the mounting groove.

[0013] The beneficial effect of this improvement is that when the upper mold and the lower mold are fitted together, the sleeve located below the upper mold extends into the installation groove, thereby ensuring the tightness of the fit between the upper mold and the lower mold.

[0014] To keep the heating plate in operation and used to maintain the temperature of the mold to prevent the plastic from curing prematurely:

[0015] As a further improvement of the above technical solution: the heating groove is opened below the lower mold groove, the inner wall of the cooling groove is connected with a heat insulation layer, and the heating plate is electrically connected to the operation panel.

[0016] The beneficial effect of this improvement is that when in use, the heating plate is started to preheat the lower mold cavity. At the same time, in the process of injecting molten plastic into the mold cavity formed by the upper mold groove and the lower mold groove through the glue inlet hole, the heating plate is kept in working state and used to maintain the temperature of the mold, thereby preventing the plastic from solidifying prematurely.

[0017] In order to use the cooling water in the shunt pipe to quickly cool the casting, thereby speeding up the molding time and facilitating subsequent demoulding:

[0018] As a further improvement of the above technical solution: the end of the water inlet pipe away from the diversion pipe is connected to the cooling water source, the end of the drain pipe away from the diversion pipe is connected to the water collecting tank, and the diversion pipe is installed in the cooling tank through a bracket.

[0019] The beneficial effect of this improvement is: after the injection of plastic is completed, the valve of the cooling water source is opened, the cooling water flows into the water inlet pipe and is diverted through the diversion pipe. The cooling water in the diversion pipe is used to quickly cool the casting, thereby speeding up the molding time and facilitating subsequent demoulding.

[0020] In order to increase the cooling time of the casting by cooling water and ensure the cooling effect of the casting:

[0021] As a further improvement of the above technical solution: a guide hole is opened on the inner side of the guide ring, and the guide rings are installed on the inner wall of the diversion pipe at equal intervals.

[0022] The beneficial effect of this improvement is that after the cooling water in the water inlet pipe is diverted into the diversion pipe, the cooling water encounters the obstruction of the guide ring during the flow in the diversion pipe, and then the cooling water flow rate is slowed down and continues to flow through the diversion hole. The slowing down of the cooling water flow rate by the guide ring can increase the time for the cooling water to cool the casting, thereby ensuring the cooling effect on the casting. At the same time, through the joint arrangement of the heating plate and the diversion pipe, the dual functions of heating and cooling in the plastic process are realized.

[0023] In order to improve the stability of the upper mold during movement through the guide column:

[0024] As a further improvement of the above technical solution: top side plates are symmetrically welded at both ends of the upper mold, the bottom of the top side plates is connected to the output end of the hydraulic cylinder away from the base plate, the end of the guide column away from the lower mold passes through the upper mold and extends to be connected to the limit ring, and the guide column is slidably connected to the sleeve.

[0025] The beneficial effect of this improvement is that when the upper mold moves driven by the top side plates at both ends, the upper mold moves with the guide column as the vertical axis during the movement, thereby improving the stability of the upper mold during the movement through the guide column.

[0026] In order to improve the stability of the fit between the upper mold and the lower mold by extending the stabilizing column into the clearance groove:

[0027] As a further improvement of the above technical solution: the bottom of the glue inlet hole is connected to the top of the upper mold groove, and the inner side of the bottom of the upper mold is symmetrically provided with a clearance groove.

[0028] The beneficial effect of this improvement is that when the upper mold is driven by the top side plates and gradually approaches the lower mold, the stabilizing column is gradually inserted into the clearance groove. When the bottom of the upper mold and the top of the lower mold are fitted with each other, the stabilizing column is simultaneously extended into the clearance groove. By extending the stabilizing column into the clearance groove, the stability of the fit between the upper mold and the lower mold is improved, and then the molten plastic is injected into the mold cavity formed by the upper mold groove and the lower mold groove through the glue inlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention.

[0030] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0031] Figure 3 It is a schematic diagram of the top cross-sectional structure of the lower mold of the utility model.

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the lower mold of the utility model.

[0033] Figure 5 It is a cross-sectional schematic diagram of the diverter pipe structure of the present utility model.

[0034] In the figure: 1. Base assembly; 11. Base plate; 12. Base; 13. Hydraulic cylinder; 14. Top side plate; 15. Guide column; 16. Sleeve; 17. Limiting ring; 2. Lower mold assembly; 21. Lower mold; 22. Lower mold groove; 23. Mounting groove; 24. Stabilizing column; 25. Heating groove; 26. Heating plate; 27. Cooling groove; 3. Cooling assembly; 31. Water inlet pipe; 32. Tee pipe; 33. Diverter pipe; 34. Drain pipe; 35. Insulation layer; 36. Guide ring; 37. Guide hole; 4. Upper mold assembly; 41. Upper mold; 42. Upper mold groove; 43. Glue inlet hole; 44. Give way groove. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0036] like Figure 1-5As shown, a pressure-resistant gold-plastic mold frame includes a base assembly 1, a lower mold assembly 2, a cooling assembly 3, and an upper mold assembly 4. The base assembly 1 includes a base plate 11 and a sleeve 16. The lower mold assembly 2 includes a lower mold 21. The cooling assembly 3 includes a water inlet pipe 31. The upper mold assembly 4 includes an upper mold 41. The four corners of the top of the base plate 11 are fixed with hydraulic cylinders 13 by bolts. The inner side of the upper mold 41 is connected with a guide column 15. The inner side of the lower mold 21 is provided with a lower mold groove 22. The top of the lower mold 21 is welded with a stabilizing column 24. The inner side of the lower mold 21 is provided with a heating groove 25. The inner side of the heating groove 25 is provided with a heating plate 26. The inner side of the lower mold 21 is provided with a cooling groove 27. The water inlet pipe 31 is provided with a cooling column 15. One end of the pipe 31 is connected to a tee pipe 32, and both ends of the tee pipe 32 are symmetrically connected to a diversion pipe 33. The end of the diversion pipe 33 away from the water inlet pipe 31 is connected to the drain pipe 34 through the tee pipe 32, and the inner wall of the diversion pipe 33 is connected to a guide ring 36. An upper mold groove 42 is provided on the inner side of the bottom of the upper mold 41, and a glue inlet hole 43 is provided on the inner side of the top of the upper mold 41. There are four hydraulic cylinders 13, which are electrically connected to the operation panel. There are four sleeves 16 and they are welded to the inner side of the upper mold 41. The top of the base plate 11 is connected to the base base 12, and the base base 12 is connected to the lower bottom surface of the lower mold 21 away from the top of the base plate 11; through the arrangement of the base plate 11 and the base base 12, it is used to adjust the lower mold 21. The fixing and support of the sleeve 16 is provided as a channel for the guide column 15 to slide. The inner side of the top of the lower mold 21 is symmetrically provided with a mounting groove 23, and the guide column 15 is installed inside the mounting groove 23; when the upper mold 41 and the lower mold 21 are fitted with each other, the sleeve 16 below the upper mold 41 extends into the mounting groove 23, thereby ensuring the tightness of the fit between the upper mold 41 and the lower mold 21. The heating groove 25 is provided below the lower mold groove 22, and the inner wall of the cooling groove 27 is connected to the heat insulation layer 35. The heating plate 26 is electrically connected to the operation panel; when in use, the operation of the heating plate 26 is started and the cavity of the lower mold groove 22 is preheated. At the same time, the molten plastic is injected into the upper mold groove 42 and the lower mold groove 22 through the glue inlet hole 43. During the process of forming the mold cavity by the lower mold groove 22, the heating plate 26 is kept in working state and used to maintain the temperature of the mold, thereby preventing the plastic from solidifying prematurely. The end of the water inlet pipe 31 away from the diverter pipe 33 is connected to the cooling water source, and the end of the drain pipe 34 away from the diverter pipe 33 is connected to the water collecting tank. The diverter pipe 33 is installed in the cooling tank 27 through a bracket. After the injection of the plastic is completed, the valve of the cooling water source is opened, and the cooling water flows into the water inlet pipe 31 and is diverted through the diverter pipe 33. The cooling water in the diverter pipe 33 is used to quickly cool the casting, thereby speeding up the molding time and facilitating subsequent demoulding. The inner side of the guide ring 36 is provided with a guide hole 37, and the guide ring 36 is installed on the inner wall of the diverter pipe 33 at equal intervals.After the cooling water in the water inlet pipe 31 is diverted into the diversion pipe 33, the cooling water encounters the obstruction of the guide ring 36 in the process of flowing in the diversion pipe 33, and then the cooling water flow rate is slowed down and continues to flow through the guide hole 37. The slowing down of the cooling water flow rate by the guide ring 36 can increase the time for the cooling water to cool the casting, thereby ensuring the cooling effect of the casting. At the same time, the joint arrangement of the heating plate 26 and the diversion pipe 33 realizes the dual functions of heating and cooling in the plastic process. The top side plates 14 are symmetrically welded at both ends of the upper mold 41. The bottom of the top side plates 14 is connected to the output end of the hydraulic cylinder 13 away from the base plate 11. The end of the guide column 15 away from the lower mold 21 passes through the upper mold 41 and extends to be connected to the limit ring 17. The guide column 15 is slidably connected to the sleeve 16; when the upper mold 41 is between the two When the upper mold 41 moves driven by the top side plate 14, it moves with the guide post 15 as the vertical axis. The guide post 15 improves the stability of the upper mold 41 during movement. The bottom of the glue inlet 43 is connected to the top of the upper mold groove 42. The inner side of the bottom of the upper mold 41 is symmetrically provided with a clearance groove 44. When the upper mold 41 gradually approaches the lower mold 21 driven by the top side plate 14, the stabilizing post 24 gradually inserts into the clearance groove 44. When the bottom of the upper mold 41 and the top of the lower mold 21 are in contact with each other, the stabilizing post 24 simultaneously extends into the clearance groove 44. The extension of the stabilizing post 24 into the clearance groove 44 improves the stability of the contact between the upper mold 41 and the lower mold 21. Then, the molten plastic is injected into the mold cavity formed by the upper mold groove 42 and the lower mold groove 22 through the glue inlet 43.

[0037] The working principle of the present invention is as follows: when in use, the operation of the heating plate 26 is started and the cavity of the lower die groove 22 is preheated, and the operation of the hydraulic cylinder 13 is started. When the upper die 41 is moved under the drive of the top side plates 14 at both ends, the upper die 41 moves with the guide column 15 as the vertical axis during the movement, and then the guide column 15 is used to improve the stability of the upper die 41 during the movement. When the upper die 41 is gradually driven by the top side plates 14 to approach the lower die 21, the stabilizing column 24 is gradually inserted into the clearance groove 44. When the bottom of the upper die 41 is When the top of the lower mold 21 is fitted together, the stabilizing column 24 is extended into the clearance groove 44 at the same time, and the stabilizing column 24 is extended into the clearance groove 44 to improve the stability of the fit between the upper mold 41 and the lower mold 21. When the upper mold 41 and the lower mold 21 are fitted together, the sleeve 16 below the upper mold 41 is extended into the mounting groove 23, thereby ensuring the tightness of the fit between the upper mold 41 and the lower mold 21. Then, the molten plastic is injected into the mold cavity formed by the upper mold groove 42 and the lower mold groove 22 through the glue inlet hole 43. At the same time, the molten plastic is injected into the mold cavity formed by the upper mold groove 42 and the lower mold groove 22 through the glue inlet hole 43. During the process of injecting the molten plastic into the mold cavity formed by the upper mold groove 42 and the lower mold groove 22, the heating plate 26 is kept in working state and used to maintain the temperature of the mold, thereby preventing the plastic from solidifying prematurely. After the injection of the plastic is completed, the valve of the cooling water source is opened, and the cooling water flows into the water inlet pipe 31 and is diverted through the diverter pipe 33. After the cooling water in the water inlet pipe 31 is diverted into the diverter pipe 33, the cooling water encounters the obstruction of the guide ring 36 during the flow in the diverter pipe 33, and then the cooling water flow rate slows down and continues to flow through the guide hole 37. The slowing down of the cooling water flow rate by the guide ring 36 can increase the cooling time of the casting by the cooling water, thereby ensuring the cooling effect of the casting. The cooling water in the diverter pipe 33 is used to quickly cool the casting, thereby accelerating the molding time and facilitating subsequent demoulding. At the same time, the joint setting of the heating plate 26 and the diverter pipe 33 realizes the dual functions of heating and cooling in the plastic process. The setting of the base plate 11 and the base base 12 is used to fix and support the lower mold 21. The setting of the sleeve 16 provides a channel for the guide column 15 to slide.

[0038] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0039] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of the present utility model.

Claims

1. A pressure-resistant gold-plastic mold frame, comprising a base assembly (1), a lower mold assembly (2), a cooling assembly (3), and an upper mold assembly (4), wherein the base assembly (1) comprises a base plate (11) and a sleeve (16), the lower mold assembly (2) comprises a lower mold (21), the cooling assembly (3) comprises a water inlet pipe (31), and the upper mold assembly (4) comprises an upper mold (41), characterized in that: The four corners of the top of the base plate (11) are fixed with hydraulic cylinders (13) by bolts, the inner side of the upper mold (41) is connected with a guide column (15), the inner side of the lower mold (21) is provided with a lower mold groove (22), the top of the lower mold (21) is welded with a stabilizing column (24), the inner side of the lower mold (21) is provided with a heating groove (25), the inner side of the heating groove (25) is provided with a heating plate (26), the inner side of the lower mold (21) is provided with a cooling groove (26). 7), one end of the water inlet pipe (31) is connected to a tee pipe (32), both ends of the tee pipe (32) are symmetrically connected to a diversion pipe (33), one end of the diversion pipe (33) away from the water inlet pipe (31) is connected to a drain pipe (34) through the tee pipe (32), the inner wall of the diversion pipe (33) is connected to a guide ring (36), the inner side of the bottom of the upper mold (41) is provided with an upper mold groove (42), and the inner side of the top of the upper mold (41) is provided with a glue inlet hole (43).

2. The pressure-resistant gold-plastic mold frame according to claim 1, characterized in that: There are four hydraulic cylinders (13) which are electrically connected to the operation panel. There are four sleeves (16) which are welded to the inner side of the upper mold (41). The top of the base plate (11) is connected to a base seat (12). The base seat (12) is connected to the bottom surface of the lower mold (21) away from the top of the base plate (11).

3. The pressure-resistant gold-plastic mold frame according to claim 1, characterized in that: A mounting groove (23) is symmetrically provided on the inner side of the top of the lower mold (21), and the guide column (15) is installed inside the mounting groove (23).

4. The pressure-resistant gold-plastic mold frame according to claim 1, characterized in that: The heating groove (25) is opened below the lower mold groove (22), the inner wall of the cooling groove (27) is connected with a heat insulation layer (35), and the heating plate (26) is electrically connected to the operation panel.

5. The pressure-resistant gold-plastic mold frame according to claim 1, characterized in that: One end of the water inlet pipe (31) away from the shunt pipe (33) is connected to a cooling water source, and one end of the drain pipe (34) away from the shunt pipe (33) is connected to a water collecting tank. The shunt pipe (33) is installed in the cooling tank (27) through a bracket.

6. The pressure-resistant gold-plastic mold frame according to claim 1, characterized in that: A guide hole (37) is provided on the inner side of the guide ring (36), and the guide ring (36) is installed on the inner wall of the diversion pipe (33) at equal intervals.

7. The pressure-resistant gold-plastic mold frame according to claim 1, characterized in that: Top side plates (14) are symmetrically welded at both ends of the upper mold (41), and the bottom of the top side plates (14) is connected to the output end of the hydraulic cylinder (13) away from the base plate (11). The end of the guide column (15) away from the lower mold (21) passes through the upper mold (41) and extends to be connected to the limit ring (17). The guide column (15) is slidably connected to the sleeve (16).

8. The pressure-resistant gold-plastic mold frame according to claim 1, characterized in that: The bottom of the glue inlet hole (43) is connected to the top of the upper mold groove (42), and a clearance groove (44) is symmetrically opened on the inner side of the bottom of the upper mold (41).

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