Double-layer precision mold

Abstract

The utility model discloses a double-layer type precision mold which comprises a bottom box, a lower mold plate, a middle mold plate and an upper mold plate, an injection molding pipe is connected to the upper portion of the upper mold plate in an inserted mode, two sets of inserting holes are formed in the upper portions of the lower mold plate, the middle mold plate and the upper mold plate respectively, and positioning columns penetrate through the interiors of the three sets of inserting holes in the same vertical line in a sliding mode. First alignment blocks are installed on the two sides of the lower mold plate and the two sides of the upper mold plate correspondingly, second alignment blocks are installed on the two sides of the middle mold plate correspondingly, V-shaped grooves are formed in the surfaces of the four sets of first alignment blocks and the surfaces of the two sets of second alignment blocks correspondingly, and arc-shaped grooves are formed in the inner walls of the six sets of V-shaped grooves correspondingly. The double-layer precision mold has the beneficial effects that the double-layer precision mold is provided with the first alignment block, the second alignment block and the limiting roller, and through the arrangement of the first alignment block, the second alignment block and the limiting roller, alignment connection between double layers of molds can be conveniently achieved, and convenience is brought to installation of the double-layer precision mold.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a double-layer precision mold. Background Technology

[0002] Molds are tools used in industrial production to shape articles. They process raw materials into products with specific shapes and sizes through specific shapes and structures. They can be classified by molding material (metal molds, plastic molds, rubber molds, etc.) and by process nature (stamping molds, cavity molds, powder metallurgy molds, etc.). They are widely used in the automotive, electronics, home appliance, aerospace, and medical device industries. Double-layer precision molds are a type of mold that has advantages such as simple operation, stable structure, and precise processing.

[0003] Existing double-layer precision molds require the use of protrusions and slots to stack and align the two layers. To ensure stability during use, a smooth transition fit between the protrusions and slots is necessary. As a result, it is difficult for operators to align the protrusions and slots, which causes inconvenience in the installation of existing double-layer precision molds. In addition, without a guide structure, after removing the injection molded parts from between the two layers, re-alignment is required, reducing the practicality of existing double-layer precision molds. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a double-layer precision mold, which has the advantages of facilitating the alignment and connection between the two layers of molds and having a guiding structure that avoids frequent alignment and connection work between the two layers of molds, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the advantages of facilitating alignment and connection between double-layer molds, providing a guiding structure, and avoiding frequent alignment and connection work between double-layer molds, the specific technical solution adopted by this utility model is as follows: A double-layer precision mold includes a base box, a lower template, a middle template, and an upper template. An injection tube is inserted into the upper part of the upper template. Two sets of insertion holes are opened in the upper parts of the lower template, the middle template, and the upper template. Positioning pins slide through the interior of the three sets of insertion holes located on the same vertical line. First alignment blocks are installed on both sides of the lower template and the upper template, and second alignment blocks are installed on both sides of the middle template. V-shaped grooves are opened on the surface of the four sets of first alignment blocks and the surface of the two sets of second alignment blocks. The inner walls of the six sets of V-shaped grooves are all provided with... The base has an arc-shaped groove. Inside the base box, a bidirectional lead lever is installed via bearings. Two sets of lead screw sleeves are fitted onto the side walls of the bidirectional lead lever, and each set of lead screw sleeves has a connecting plate fixedly fitted onto its side wall. A crossbar slides through the two sets of connecting plates, and the two ends of the crossbar are fixedly connected to the two sides of the interior of the base box. The upper part of the base box has two sets of limiting slots, and I-shaped sliders slide through the interior of each of the two sets of limiting slots. The two sets of I-shaped sliders are fixedly connected to the two sets of connecting plates, and the upper parts of the two sets of I-shaped sliders are fitted with limiting rollers via bearings. A control panel is installed on one side of the base box, and a self-locking forward and reverse motor is installed on the other side of the base box. The output end of the self-locking forward and reverse motor is connected to the bidirectional lead lever via a coupling.

[0008] Furthermore, two sets of mounting blocks are fixedly installed on the upper part of the upper template, and each set of mounting blocks has a conical groove on its upper part. Two sets of alignment holes are opened on the upper part of the bottom box. Mounting screws are installed at the lower ends of the two sets of positioning columns, and mounting nuts are sleeved on the side walls of the two sets of mounting screws. Conical blocks are installed at the lower ends of the two sets of mounting screws.

[0009] Furthermore, the two sets of mounting screws and the two sets of mounting nuts are threadedly engaged with each other.

[0010] Furthermore, a door is installed on the end face of the bottom box via a hinge.

[0011] Furthermore, the bidirectional lead lever and the two sets of lead screw threads cooperate with each other.

[0012] Furthermore, the control panel is electrically connected to a self-locking forward and reverse motor via wires.

[0013] Furthermore, a mounting base is installed on the lower part of the base box.

[0014] Furthermore, the interior of the template is provided with through holes.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a double-layer precision mold, which has the following beneficial effects:

[0017] (1) This utility model is equipped with a first alignment block, a second alignment block and a limiting roller. When using a double-layer precision mold, the operator can stack the lower template, the middle template and the upper template on the base box in sequence, and then use the control panel to make the self-locking forward and reverse motor work. The output end of the self-locking forward and reverse motor can drive the bidirectional lead lever to rotate. Since the bidirectional lead lever and the two sets of lead screw sleeves are mutually engaged, the rotating bidirectional lead lever can push the two sets of lead screw sleeves to move closer or further apart. When the two sets of lead screw sleeves pass through the two sets of sleeve plates and the two sets of I-shaped sliders, the two sets of limiting rollers are moved. When they approach each other, the two sets of limiting rollers can enter the six sets of V-shaped grooves. During this process, the two sets of limiting rollers can push the four sets of first alignment blocks and the two sets of second alignment blocks. When the two sets of limiting rollers enter the interior of the six sets of arc-shaped grooves, the lower template, middle template and upper template are stacked and aligned. The two sets of limiting through slots can ensure the stability of the lateral movement of the two sets of I-shaped sliders, and the crossbar can ensure the stability of the lateral movement of the two sets of socket plates. Through the setting of the first alignment block, the second alignment block and the limiting rollers, the alignment connection between the double-layer molds can be easily realized, which brings convenience to the installation of double-layer precision molds.

[0018] (2) This utility model is equipped with positioning posts. According to the above operation, after the lower template, middle template and upper template are stacked and aligned, the operator can insert the two sets of positioning posts into the six sets of insertion holes through the two sets of conical grooves. Finally, the two sets of installation screws will pass through the two sets of alignment holes. Then, by using the two sets of installation screws and the two sets of installation nuts to cooperate with each other, the operator can manually rotate the two sets of installation nuts clockwise and put them on the two sets of installation screws. When the two sets of installation nuts contact the inner top surface of the bottom box, the installation of the two sets of positioning posts is completed. The two sets of conical blocks can facilitate the two sets of installation screws to pass through the two sets of alignment holes smoothly, and at the same time facilitate the two sets of installation nuts to pass through the two sets of alignment holes smoothly. Rotate clockwise onto the two sets of mounting screws. At this time, the injection molding liquid can be injected into the interior of the upper mold plate through the injection tube. Due to the presence of the through hole, there will be injection molding liquid in the mold cavity between the middle mold plate and the upper and lower mold plates. After the injection molding liquid cools down, the upper and middle mold plates can be lifted with the help of an external drive device, and then the injection molded workpiece can be removed. Finally, the upper and middle mold plates are reset. During this process, the two sets of positioning pins guide the upper and middle mold plates, which can prevent the upper and middle mold plates from being misaligned with the lower mold plate. Through the positioning pins, a guiding structure is provided, which can avoid frequent alignment and connection work between the two-layer molds, thus improving the practicality of the double-layer precision mold. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of a double-layer precision mold according to an embodiment of the present utility model;

[0021] Figure 2 This is a top view of the upper template according to an embodiment of the present utility model;

[0022] Figure 3 This is a perspective view of the first alignment block and the second alignment block according to an embodiment of the present utility model;

[0023] Figure 4 According to the embodiments of this utility model Figure 1 Enlarged view of A in the middle;

[0024] Figure 5 According to the embodiments of this utility model Figure 1 A magnified view of B in the middle.

[0025] In the picture:

[0026] 1. Base box; 2. Lower template; 3. Middle template; 4. Upper template; 5. Injection tube; 6. Insertion hole; 7. Positioning post; 8. Two-way lead lever; 9. Lead screw sleeve; 10. Connecting plate; 11. Crossbar; 12. Self-locking forward and reverse motor; 13. Limiting slot; 14. I-shaped slider; 15. Limiting roller; 16. First alignment block; 17. Second alignment block; 18. V-shaped groove; 19. Arc-shaped groove; 20. Alignment hole; 21. Mounting screw; 22. Mounting nut; 23. Conical block; 24. Mounting block; 25. Conical groove. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, a double-layer precision mold is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-5 As shown, a double-layer precision mold according to an embodiment of the present invention includes a base box 1, a lower template 2, a middle template 3, and an upper template 4. An injection tube 5 is inserted into the upper part of the upper template 4. Two sets of insertion holes 6 are opened in the upper parts of the lower template 2, the middle template 3, and the upper template 4. Positioning pins 7 slide through the interior of the three sets of insertion holes 6 located on the same vertical line. First alignment blocks 16 are installed on both sides of the lower template 2 and the upper template 4, and second alignment blocks 17 are installed on both sides of the middle template 3. V-shaped grooves 18 are opened on the surface of the four sets of first alignment blocks 16 and the surface of the two sets of second alignment blocks 17. Arc-shaped grooves 19 are provided on the inner walls of the six sets of V-shaped grooves 18. A bidirectional lead screw lever 8 is installed inside the base box 1 through a bearing, and two sets of lead screw sleeves 9 are sleeved on the side walls of the bidirectional lead screw lever 8, and the side walls of the two sets of lead screw sleeves 9 are fixed. A connecting plate 10 is fitted together, and a crossbar 11 slides through the two sets of connecting plates 10. The two ends of the crossbar 11 are fixedly connected to the inner sides of the bottom box 1. Two sets of limiting slots 13 are opened on the upper part of the bottom box 1, and I-shaped sliders 14 slide through the interior of the two sets of limiting slots 13. The two sets of I-shaped sliders 14 are fixedly connected to the two sets of connecting plates 10. Limiting rollers 15 are installed on the upper part of the two sets of I-shaped sliders 14 through bearings. A control panel is installed on one side of the bottom box 1, and a self-locking forward and reverse motor 12 is installed on the other side of the bottom box 1. The output end of the self-locking forward and reverse motor 12 is connected to the bidirectional screw lever 8 through a coupling. Through the first alignment block 16, the second alignment block 17 and the limiting rollers 15, the alignment connection between the double-layer mold can be easily realized, which brings convenience to the installation of the double-layer precision mold.

[0030] In one embodiment, two sets of mounting blocks 24 are fixedly installed on the upper part of the upper template 4, and the upper part of each set of mounting blocks 24 is provided with a conical groove 25. The upper part of the bottom box 1 is provided with two sets of alignment holes 20. The lower ends of the two sets of positioning posts 7 are each equipped with mounting screws 21, and the side walls of the two sets of mounting screws 21 are each fitted with mounting nuts 22. The lower ends of the two sets of mounting screws 21 are each equipped with conical blocks 23. The positioning posts 7 provide a guiding structure, which can avoid frequent alignment and connection work between the two-layer molds and improve the practicality of the double-layer precision mold.

[0031] In one embodiment, the two sets of mounting screws 21 and the two sets of mounting nuts 22 are threaded together to facilitate adjustment of the position of the two sets of mounting nuts 22.

[0032] In one embodiment, a door is installed on the end face of the bottom box 1 via a hinge.

[0033] In one embodiment, the bidirectional lead lever 8 and the two sets of lead screw sleeves 9 are threaded together to facilitate adjustment of the usage position of the two sets of lead screw sleeves 9.

[0034] In one embodiment, the control panel is electrically connected to the self-locking forward and reverse motor 12 via wires. The control circuit of the control panel can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0035] In one embodiment, a mounting base is installed on the lower part of the base box 1.

[0036] In one embodiment, the interior of the middle template 3 is provided with a through hole.

[0037] Working principle:

[0038] In actual use of the double-layer precision mold, the operator can stack the lower template 2, the middle template 3, and the upper template 4 sequentially on the base box 1. Then, using the control panel, the self-locking forward and reverse motor 12 is activated. The output end of the self-locking forward and reverse motor 12 can drive the bidirectional lead lever 8 to rotate. Since the bidirectional lead lever 8 and the two sets of lead screw sleeves 9 are threadedly engaged, the rotating bidirectional lead lever 8 can push the two sets of lead screw sleeves 9 closer or further apart. When the two sets of lead screw sleeves 9 bring the two sets of limiting rollers 15 closer together through the two sets of sleeve plates 10 and the two sets of I-shaped sliders 14, the two sets of limiting rollers 15 can enter the six sets of V-shaped grooves 18. During this process, the two sets of limiting rollers... Roller 15 can push four sets of first alignment blocks 16 and two sets of second alignment blocks 17. When the two sets of limiting rollers 15 enter the interior of the six sets of arc-shaped grooves 19, the lower template 2, middle template 3 and upper template 4 are stacked and aligned. The two sets of limiting through slots 13 can ensure the stability of the lateral movement of the two sets of I-shaped sliders 14, and the crossbar 11 can ensure the stability of the lateral movement of the two sets of socket plates 10. Through the setting of the first alignment blocks 16, second alignment blocks 17 and limiting rollers 15, the alignment connection between the double-layer molds can be easily realized, which brings convenience to the installation of double-layer precision molds. At the same time, according to the above operation, it can be seen that when the lower template 2, middle template 3 and upper template 4 are stacked and aligned... After positioning, the operator can insert the two sets of positioning pins 7 into the six sets of insertion holes 6 through the two sets of conical grooves. Finally, the two sets of mounting screws 21 will pass through the two sets of alignment holes 20. Then, utilizing the threaded engagement of the two sets of mounting screws 21 and the two sets of mounting nuts 22, the operator manually rotates the two sets of mounting nuts 22 clockwise onto the two sets of mounting screws 21. When the two sets of mounting nuts 22 contact the inner top surface of the base box 1, the installation of the two sets of positioning pins 7 is complete. The two sets of conical blocks 23 facilitate the smooth passage of the two sets of mounting screws 21 through the two sets of alignment holes 20, and also facilitate the clockwise rotation of the two sets of mounting nuts 22 onto the two sets of mounting screws 21. At this time, the injection molding liquid can be injected into the interior of the upper mold plate 4 through the injection tube 5. Due to the presence of the through hole, there will be injection molding liquid in the mold cavity between the middle mold plate 3 and the upper mold plate 4 and the lower mold plate 2. After the injection molding liquid cools down, the upper mold plate 4 and the middle mold plate 3 can be lifted with the help of an external drive device, and then the injection molded workpiece can be taken out. Finally, the upper mold plate 4 and the middle mold plate 3 are reset. During this process, the two sets of positioning pins 7 guide the upper mold plate 4 and the middle mold plate 3, which can prevent the upper mold plate 4 and the middle mold plate 3 from being misaligned with the lower mold plate 2. The positioning pins 7 have a guiding structure, which can avoid frequent alignment and connection work between the double molds, thus improving the practicality of the double-layer precision mold.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-layer precision mold comprising a bottom box (1), a lower mold plate (2), a middle mold plate (3), and an upper mold plate (4), characterized in that, The upper part of the upper template (4) is connected to an injection tube (5). The upper parts of the lower template (2), middle template (3) and upper template (4) are each provided with two sets of insertion holes (6). The three sets of insertion holes (6) located on the same vertical line are slidably connected to positioning posts (7). The lower template (2) and upper template (4) are each equipped with a first alignment block (16). The middle template (3) is each equipped with a second alignment block (17). The surfaces of the four sets of first alignment blocks (16) and the surfaces of the two sets of second alignment blocks (17) are each provided with a V-shaped groove (18). The inner walls of the six sets of V-shaped grooves (18) are each provided with an arc-shaped groove (19). The bottom box (1) is equipped with a double-acting screw lever (8) installed inside through a bearing. The side walls of the double-acting screw lever (8) are fitted with two sets of screw sleeves (9). Each of the lead screw sleeves (9) is fixedly fitted with a connecting plate (10). A crossbar (11) slides through the two sets of connecting plates (10), and the two ends of the crossbar (11) are fixedly connected to the two sides of the interior of the base box (1). The upper part of the base box (1) is provided with two sets of limiting slots (13), and I-shaped sliders (14) slide through the interior of the two sets of limiting slots (13). The two sets of I-shaped sliders (14) are fixedly connected to the two sets of connecting plates (10). The upper part of the two sets of I-shaped sliders (14) is equipped with a limiting roller (15) through a bearing. A control panel is installed on one side of the base box (1), and a self-locking forward and reverse motor (12) is installed on the other side of the base box (1). The output end of the self-locking forward and reverse motor (12) is connected to the bidirectional lead lever (8) through a coupling.

2. The double-layer precision mold according to claim 1, wherein Two sets of mounting blocks (24) are fixedly installed on the upper part of the upper template (4), and the upper part of the two sets of mounting blocks (24) is provided with a conical groove (25). The upper part of the bottom box (1) is provided with two sets of alignment holes (20). The lower ends of the two sets of positioning columns (7) are provided with mounting screws (21), and the side walls of the two sets of mounting screws (21) are fitted with mounting nuts (22). The lower ends of the two sets of mounting screws (21) are provided with conical blocks (23).

3. The double-layer precision mold according to claim 2, wherein The two sets of mounting screws (21) and the two sets of mounting nuts (22) are threadedly engaged with each other.

4. The double-layer precision mold according to claim 1, wherein The bottom box (1) has a door installed on its end face via a hinge.

5. The double-layer precision mold according to claim 1, wherein The bidirectional lead lever (8) and the two sets of lead screw sleeves (9) are threaded together.

6. The double-layer precision mold according to claim 1, wherein The control panel is electrically connected to the self-locking forward and reverse motor (12) via wires.

7. The double-layer precision mold according to claim 1, wherein The bottom of the base box (1) is equipped with a mounting base.

8. A double-layer precision mold according to claim 1, characterized in that, The interior of the template (3) is provided with through holes.

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