Automatic wax injection mold equipment

Abstract

The present invention discloses an automatic wax injection mold equipment, comprising a base plate, a core pulling seat arranged above the base plate, a core pulling connecting and fixing plate arranged between the core pulling seat and the base plate, and a core pulling interlocking block arranged above the core pulling connecting and fixing plate; a core pulling hole is arranged in the middle of the core pulling seat, locking grooves are opened on both sides, and an external locking plate is arranged on the locking groove; an inner drum and an outer drum surrounding the inner drum are arranged in the middle of the core pulling hole, an inner drum finger cylinder for driving the inner drum to tighten is arranged at the bottom of the core pulling connecting and fixing plate; an inner drum core pulling cylinder for driving the inner drum to leave the core pulling connecting and fixing plate is also arranged at the bottom of the core pulling connecting and fixing plate, and the inner drum is connected to the inner drum core pulling cylinder through the inner drum core pulling connecting plate; an outer drum core pulling cylinder for tightening the outer drum is arranged on the side of the core pulling interlocking block. Program control and detection are implemented from the beginning to the end. At the same time, the wax injection machine is equipped with a sensing device without changing its control program, so that the wax injection machine and the automatic wax injection mold are linked and each action is accurately detected. The present invention saves resources and costs as a whole, has high production capacity, and realizes integrated molding of the mold.

Description

Technical Field

[0001] The invention relates to the technical field of wax injection, in particular to an automatic wax injection mold device. Background Art

[0002] There are three main types of existing wax injection mold design processes: manual core pulling and manual mold opening; automatic core pulling and automatic mold opening. In order to improve efficiency, most products are generally produced by automatic core pulling and automatic mold opening. However, during the production process, because the automatic core pulling is too long, it is necessary to use a cylinder to replace the traditional ivory-type shovel-based core pulling. Once the core pulling is not retracted and the machine continues to perform the product ejection step, the mold core pulling will be directly damaged, resulting in mold maintenance and production stagnation; other products have complex structures and can only use two or more sets of molds to produce a single wax part, and then assemble and splice to achieve the finished wax part; its production process mode not only occupies equipment and manpower, but also generates secondary manual dependence (assembly, splicing and waxing), and invisibly generates a third manual dependence (full inspection and repair of wax parts) indirectly through assembly and splicing. Processes such as; a large amount of resources and costs are wasted, resulting in low production capacity and failure to achieve mold one-piece molding. Summary of the invention

[0003] The object of the present invention is to provide an automatic wax injection mold device which saves resources, reduces costs, has high production capacity, and realizes integrated mold forming.

[0004] To achieve the above-mentioned purpose, the present invention provides an automatic wax injection mold equipment, including a base, a core-pulling seat arranged above the base, a core-pulling connecting and fixing plate arranged between the core-pulling seat and the base, and a core-pulling interlocking block arranged above the core-pulling connecting and fixing plate; a core-pulling hole is arranged in the middle of the core-pulling seat, and locking grooves are opened on both sides, and an external locking plate is arranged on the locking groove; an inner drum and an outer drum surrounding the inner drum are arranged in the middle of the core-pulling hole, and an inner drum finger cylinder for driving the inner drum to tighten is arranged at the bottom of the core-pulling connecting and fixing plate; the bottom of the core-pulling connecting and fixing plate is also provided with a An inner drum core-pulling cylinder is provided for driving the inner drum away from the core-pulling connecting fixed plate, and the inner drum is connected to the inner drum core-pulling cylinder through the inner drum core-pulling connecting plate; an outer drum core-pulling cylinder for tightening the outer drum is provided on the side of the core-pulling interlocking block; a primary ejection cylinder for initially lifting the core-pulling interlocking block is connected to the side of the core-pulling interlocking block, and an external core-pulling cylinder for pulling the external locking plate away from the locking groove is also provided on the outer side of the core-pulling seat; a secondary ejection cylinder for lifting the core-pulling interlocking block again is also provided on the side of the core-pulling interlocking block, and a wax injection part for ejecting the product is also provided on the core-pulling interlocking block.

[0005] Furthermore, an inner core pulling device is provided on the core pulling interlocking block, and an inner core pulling device cylinder for driving the inner core pulling device to open the mold is provided at the bottom of the core pulling connection fixing plate.

[0006] Furthermore, the wax injection part is an ejector pin or an ejector column, which occupies a small space.

[0007] Furthermore, a latch cylinder is provided on the side of the core-pulling seat, which is used to lock the automatic wax injection mold equipment to prevent accidental start-up when not in operation, thereby improving safety.

[0008] Furthermore, a limit block is arranged above the ejection cylinder corresponding to the side of the core-pulling interlocking block, so as to control the height of the first rise of the product by limiting the rising height of the core-pulling interlocking block, thereby preventing the cylinder from damaging the automatic wax injection mold equipment.

[0009] Furthermore, two upper mold plates and two upper mold panels are symmetrically arranged above the core pulling seat, and the two upper mold plates are spliced ​​with each other, and the two upper mold panels are spliced ​​with each other; the upper mold plate is used to cover the automatic wax injection mold equipment to prevent wax liquid from overflowing and enhance safety; the upper mold panel increases the sealing of the automatic wax injection mold equipment when it is working.

[0010] Furthermore, the automatic wax injection mold equipment is also provided with a mold opening device for separating the two upper mold plates and the two upper mold panels for mold opening.

[0011] Furthermore, the mold opening device is a mold opening cylinder that drives two upper mold plates and two upper mold panels to separate and open the mold. The cylinder has a simple structure, is easy to install and maintain, has strong adaptability, and has low usage requirements.

[0012] Furthermore, a slide rail slider mechanism is provided on the side of the core pulling connection fixed plate to assist the reciprocating movement of the mold core pulling to ensure its accuracy and service life; the slider has strong hardness and wear resistance, which is sufficient to withstand the friction of movement, and the hardness of the cavity part or core part on the slider must be at the same level as other parts of the cavity and core.

[0013] Furthermore, the inner drum finger cylinder, inner drum core pulling cylinder, outer drum core pulling cylinder, primary ejection cylinder, external core pulling cylinder, secondary ejection cylinder, inner core pulling cylinder and latch cylinder are integrated into a DCS system through PLC to achieve remote automatic or manual control.

[0014] In summary, the inner core-pulling cylinder of the automatic wax injection mold of the present invention drives the inner core-pulling to move the cavity structure; the ejector pin or ejector column occupies a small space; the latch cylinder is used to lock the automatic wax injection mold equipment to prevent accidental start-up when not in operation, thereby improving safety; the limit block limits the rising height of the core-pulling interlocking block, controls the height of the first rise of the product, and prevents the cylinder from damaging the automatic wax injection mold equipment; the upper mold plate is used to cover the automatic wax injection mold equipment to prevent wax liquid from overflowing and enhance safety; the upper mold panel increases the sealing of the automatic wax injection mold when it is working; the mold opening device is used to separate the two upper mold plates and the two upper mold panels for mold opening; the cylinder structure is simple, easy to install and maintain, strong adaptability, and low use requirements; the slide rail slider mechanism The slide rail and slider mechanism used to assist the reciprocating motion of the inner drum and the outer drum ensures its accuracy and service life, and the slider is hard and wear-resistant enough to withstand the friction of motion. The hardness of the cavity part or the core part on the slider must be at the same level as other parts of the cavity and core; the inner drum finger cylinder, the inner drum core pulling cylinder, the outer drum core pulling cylinder, the primary ejection cylinder, the external core pulling cylinder, the secondary ejection cylinder, the inner core pulling cylinder and the latch cylinder are integrated into the DCS system through PLC, and program control and detection are implemented from the beginning to the end. At the same time, the wax injection machine is equipped with a sensing device without changing its control program, so that the wax injection machine and the automatic wax injection mold are linked and each action is accurately detected, and remote automatic or manual control is also realized. The present invention saves resources and costs as a whole, has high production capacity, and realizes integrated mold molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front explosion structure of the automatic wax injection mold of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the disassembled base, upper mold plate and upper mold panel;

[0017] Figure 3 It is a schematic diagram of the exploded structure of the reverse side of the automatic wax injection mold of the present invention;

[0018] Figure 4 It is an assembly diagram of the automatic wax injection mold of the present invention;

[0019] Figure 5 A half-section view of the automatic wax injection mold of the present invention;

[0020] Explanation of the accompanying drawings: 1. Base, 2. Core pulling seat, 3. Core pulling connecting fixing plate, 4. Core pulling interlocking block, 6. Locking groove, 7. External locking plate, 8. Inner drum, 9. Outer drum, 10. Inner drum finger cylinder, 11. Inner drum core pulling cylinder, 12. Inner drum core pulling connecting plate, 13. Outer drum core pulling cylinder, 14. Primary ejection cylinder, 15. External core pulling cylinder, 16. Secondary ejection cylinder, 17. Wax injection part, 18. Inner core pulling, 19. Inner core pulling cylinder, 20. Latch cylinder, 21. Limit block, 22. Upper template, 23. Upper template panel, 24. Slide rail slider mechanism, 100. Product. DETAILED DESCRIPTION

[0021] 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, but this does not constitute a limitation on the protection scope of the present invention.

[0022] like Figure 1-5 The automatic wax injection mold equipment shown in the figure includes a base 1, a core pulling seat 2 arranged above the base 1, a core pulling connecting fixing plate 3 arranged between the core pulling seat 2 and the base 1, and a core pulling interlocking block 4 arranged above the core pulling connecting fixing plate 3; a core pulling hole is arranged in the middle of the core pulling seat 2, locking grooves 6 are opened on both sides, and an external locking plate 7 is arranged on the locking groove 6; an inner drum 8 and an outer drum 9 arranged to surround the inner drum 8 are arranged in the middle of the core pulling hole, and an inner drum finger cylinder 10 for driving the inner drum 8 to tighten is arranged at the bottom of the core pulling connecting fixing plate 3; a finger cylinder 10 for driving the inner drum 8 to leave the core pulling hole is also arranged at the bottom of the core pulling connecting fixing plate 3 The inner drum core-pulling cylinder 11 of the core connecting fixing plate 3, the inner drum 8 is connected to the inner drum core-pulling cylinder 11 through the inner drum core-pulling connecting plate 12; the side of the core-pulling interlocking block 4 is provided with an outer drum core-pulling cylinder 13 for tightening the outer drum 9; the side of the core-pulling interlocking block 4 is connected with a primary ejection cylinder 14 for initially lifting the core-pulling interlocking block 4, and the outer side of the core-pulling seat 2 is also provided with an external core-pulling cylinder 15 for pulling the external locking plate 7 out of the locking groove 6; the side of the core-pulling interlocking block 4 is also provided with a secondary ejection cylinder 16 for lifting the core-pulling interlocking block 4 again, and the core-pulling interlocking block 4 is also provided with a wax injection part 17 for ejecting the product 100.

[0023] As a preferred solution of the present invention, an inner core pulling 18 is provided on the core pulling interlocking block 4, and an inner core pulling cylinder 19 for driving the inner core pulling 18 to open the mold is provided at the bottom of the core pulling connection fixing plate 3.

[0024] As a preferred solution of the present invention, the wax injection part 17 is an ejector pin or an ejector column, which occupies a small space.

[0025] As a preferred solution of the present invention, a latch cylinder 20 is provided on the side of the core-pulling seat 2, which is used to lock the automatic wax injection mold to prevent accidental start-up when not in operation, thereby improving safety.

[0026] As a preferred embodiment of the present invention, a limit block 21 is provided above the primary ejection cylinder 14 on the side of the core-pulling interlocking block 4. By limiting the rising height of the core-pulling interlocking block 4, the first rising height of the product 100 is controlled to prevent the cylinder from damaging the automatic wax injection mold.

[0027] As a preferred solution of the present invention, two upper mold plates 22 and two upper mold panels 23 are symmetrically arranged above the core puller 2. The two upper mold plates are spliced ​​together to cover the automatic wax injection mold cavity to prevent wax liquid from overflowing and enhance safety; the two upper mold panels 23 are spliced ​​together to increase the sealing of the automatic wax injection mold equipment during operation. The overall design structure is simple, easy to install and maintain, highly adaptable, and has low usage requirements.

[0028] As a preferred solution of the present invention, a slide rail slider mechanism 24 is provided on the side of the core-pulling connecting fixed plate 3 to assist the reciprocating movement of the inner drum 8 and the outer drum 9 to ensure its accuracy and service life; the slider has strong hardness and wear resistance, which is sufficient to withstand the friction of movement, and the hardness of the cavity part or the core part on the slider must be at the same level as other parts of the cavity and core.

[0029] As a preferred embodiment of the present invention, the inner drum finger cylinder 10, the inner drum core pulling cylinder 11, the outer drum core pulling cylinder 13, the primary ejection cylinder 14, the external core pulling cylinder 15, the secondary ejection cylinder 16, the inner core pulling cylinder 19 and the latch cylinder 20 are integrated in the DCS system through PLC to realize remote automatic or manual control.

[0030] In an embodiment of the present invention, the core pulling seat 2, the inner drum 8, and the outer drum 9 are equivalent to the mold, which is used for molding the product 100, and is an integrated molding structure in the automatic wax injection mold; the core pulling interlocking block 4 serves as a bridge connecting the product 100; a shovel base is provided above the inner drum 8, which is used to press the workpiece and fit the mold; the figure shows that two groups of automatic wax injection mold cavities are merged into one mold, so a connecting groove is opened in the middle of the core pulling seat 2, and a connecting rod is formed during wax liquid injection molding, so that the two products 100 can be ejected synchronously. The present invention can appropriately increase the wax liquid molding station according to actual conditions; the inner drum 8, the outer drum 9, and the core pulling hole are arranged as a mold in the automatic wax injection mold, and the qualified rate after wax liquid molding is high.

[0031] The working principle of the present invention is as follows: first, the latch cylinder 20 is started to unlock the automatic wax injection mold, and then the mold is opened; during the mold opening, the inner core pulling cylinder 19 drives the inner core pulling 18 to descend and leave the core pulling interlocking block 4; the wax injection machine drives the two molds, and the upper mold plate 22 and the upper mold panel 23 are separated from the lower mold; then the inner drum finger cylinder 10 drives the inner drum 8 to tighten, and then the inner drum core pulling cylinder 11 drives the inner drum 8 to descend and leave the core pulling connection fixing plate 3; then the outer drum core pulling cylinder 13 drives The outer drum 9 is tightened, and then the primary ejection cylinder 14 initially lifts up the core-pulling interlocking block 4, which drives the wax injection part 17 to rise and lifts up the molded product 100 for the first time. Then the external core-pulling cylinder 15 drives the external locking plate 7 to leave the locking groove 6, which will not block the product 100 from rising again; finally, the secondary ejection cylinder 16 ejects the product 100 out of the automatic wax injection mold to complete the process; in the present invention, the latch and the internal core-pulling 18 are locking devices before mold opening.

[0032] In summary, the inner core-pulling cylinder 19 of the automatic wax injection mold device of the present invention drives the inner core-pulling cylinder 18 to open the mold; the ejector pin or the ejector column occupies a small space; the latch cylinder 20 is used to lock the automatic wax injection mold device to prevent accidental start-up when not in operation, thereby improving safety; the limit block 21 limits the rising height of the core-pulling interlocking block 4, controls the height of the first rise of the product 100, and prevents the cylinder from damaging the automatic wax injection mold; the upper mold plate 22 is used to cover the automatic wax injection mold to prevent the wax liquid from overflowing and enhance safety; the upper mold panel 23 increases the sealing of the automatic wax injection mold when it is working; the mold opening cylinder drives the two upper mold plates 22 and the upper mold panel 23 to separate from the lower mold; the cylinder has a simple structure, is easy to install and maintain, has strong adaptability, and has low requirements for use; the slide rail slider mechanism 24 It is used to assist the inner drum 8 and the outer drum 9 to move back and forth, ensuring their accuracy and service life. The slider is strong in hardness and wear-resistant, and can withstand the friction of movement. The hardness of the cavity part or the core part on the slider should be at the same level as other parts of the cavity and core. The inner drum finger cylinder 10, the inner drum core-pulling cylinder 11, the outer drum core-pulling cylinder 13, the primary ejection cylinder 14, the external core-pulling cylinder 15, the secondary ejection cylinder 16, the inner core-pulling cylinder 19 and the latch cylinder 20 are integrated in the DCS system through PLC, and program control and detection are implemented from the beginning to the end. At the same time, the wax injection machine is equipped with a sensing device without changing its control program, so that the wax injection machine and the automatic wax injection mold are linked and each action is accurately detected, and remote automatic or manual control is also realized. The present invention saves resources and costs as a whole, has high production capacity, and realizes integrated mold forming.

[0033] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An automatic wax injection mold device, comprising a base plate, characterized in that: It also includes a core-pulling seat arranged above the bottom plate, a core-pulling connecting and fixing plate arranged between the core-pulling seat and the bottom plate, and a core-pulling interlocking block arranged above the core-pulling connecting and fixing plate; a core-pulling hole is arranged in the middle of the core-pulling seat, and locking grooves are opened on both sides, and an external locking plate is arranged on the locking groove; an inner drum and an outer drum surrounding the inner drum are arranged in the middle of the core-pulling hole, and an inner drum finger cylinder for driving the inner drum to tighten is arranged at the bottom of the core-pulling connecting and fixing plate; a finger cylinder for driving the inner drum to leave the core-pulling connecting and fixing plate is also arranged at the bottom of the core-pulling connecting and fixing plate The inner drum and the inner drum core-pulling cylinder are connected through the inner drum core-pulling connecting plate; the side of the core-pulling interlocking block is provided with an outer drum core-pulling cylinder for tightening the outer drum; the side of the core-pulling interlocking block is connected with a primary ejection cylinder for preliminarily lifting the core-pulling interlocking block, and the outer side of the core-pulling seat is also provided with an external core-pulling cylinder for pulling the external locking plate out of the locking groove; the side of the core-pulling interlocking block is also provided with a secondary ejection cylinder for lifting the core-pulling interlocking block again, and the core-pulling interlocking block is also provided with a wax injection part for ejecting the product; The core-pulling interlocking block is provided with an inner core-pulling cylinder, and the bottom of the core-pulling connecting fixed plate is provided with an inner core-pulling cylinder for driving the inner core-pulling to open the mold; Two upper mold plates and two upper mold panels are symmetrically arranged above the core pulling seat; The automatic wax injection mold equipment is also provided with a mold opening device for separating the two upper mold plates and the two upper mold panels for mold opening; First, the latch cylinder is started to unlock the automatic wax injection mold, and then the mold is opened; during mold opening, the inner core-pulling cylinder drives the inner core-pulling to descend and leave the core-pulling interlocking block; the wax injection machine drives the two templates, and the upper template and the upper mold panel are separated from the lower mold; then the inner drum finger cylinder drives the inner drum to tighten, and then the inner drum core-pulling cylinder drives the inner drum to descend and leave the core-pulling connection fixing plate; then the outer drum is tightened by the outer drum core-pulling cylinder, and then the core-pulling interlocking block is initially lifted by the primary ejection cylinder, and the core-pulling interlocking block drives the wax injection part to rise and lifts the molded product for the first time, and then the external core-pulling cylinder drives the external locking plate 7 to leave the lock groove, which will not block the product from rising again; finally, the secondary ejection cylinder ejects the product out of the automatic wax injection mold to complete the process.

2. The automatic wax injection mold equipment according to claim 1, characterized in that: The wax injection part is an ejector pin or an ejector column.

3. The automatic wax injection mold equipment according to claim 1, characterized in that: A latch cylinder is arranged on the side of the core-pulling seat.

4. The automatic wax injection mold equipment according to claim 1, characterized in that: A limiting block is arranged above the primary ejection cylinder on the side of the core-pulling interlocking block.

5. The automatic wax injection mold equipment according to claim 1, characterized in that: The mold opening device is a mold opening cylinder that drives two upper mold plates and two upper mold panels to separate and open the mold.

6. The automatic wax injection mold equipment according to claim 1, characterized in that: The side of the core-pulling connection fixing plate is provided with a slide rail and slider mechanism for assisting the reciprocating movement of the inner drum and the outer drum.

7. The automatic wax injection mold equipment according to any one of claims 1 to 6, characterized in that: The inner drum finger cylinder, inner drum core pulling cylinder, outer drum core pulling cylinder, primary ejection cylinder, external core pulling cylinder, secondary ejection cylinder, inner core pulling cylinder and latch cylinder are integrated into the DCS system through PLC, and program control and detection are implemented from beginning to end. At the same time, a sensing device is added without changing the control program, so that the wax injection machine and the automatic wax injection mold are linked, each action is accurately detected, and remote automatic or manual control is also realized.

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