Plastic mold with double limiting structures

Abstract

The utility model discloses a plastic mould with double limiting structures, which relates to the technical field of plastic moulds, and comprises a bottom plate, limiting rods are fixedly connected to four corners of the top surface of the bottom plate, a top plate is movably sleeved on the surfaces of the limiting rods, two cylinders which are in bilateral symmetry are fixedly connected between the bottom plate and the top plate, and the two cylinders are fixedly connected with the bottom plate. A lower die plate is fixedly connected to the middle of the top face of the bottom plate, an upper die plate matched with the lower die plate is fixedly connected to the middle of the bottom face of the top plate, two first limiting grooves in bilateral symmetry are formed in the top face of the lower die plate, two first limiting blocks matched with the first limiting grooves are fixedly connected to the bottom face of the upper die plate, and a forming groove is formed in the top face of the lower die plate. The plastic mold plate has the advantages that after the plastic mold is formed, formed plastic can be conveniently taken out from the mold plate.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a plastic mold with a double limiting structure. Background Art

[0002] A plastic mold is a modular mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. By coordinating the mold's male and female dies and auxiliary molding systems, a range of plastic parts in different shapes and sizes can be produced.

[0003] Plastic molds are generally provided with two double-limiting structures, which allow the upper and lower templates to be precisely spliced together up and down through the double-limiting structures. However, when the existing double-limited plastic mold is working, the plastic in the mold plate and the internal cavity of the mold plate are perfectly matched together, which makes it very inconvenient for the staff to remove the molded plastic from the mold plate. If it is forcibly picked out, it is easy to damage the molded plastic. Therefore, a more complete plastic mold with a double-limiting structure is needed to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic mold with a double limiting structure.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plastic mold with a double limiting structure, comprising a bottom plate, wherein the four corners of the top surface of the bottom plate are fixedly connected to limiting rods, the surface of the limiting rods is movably sleeved with a top plate, two left-right symmetrical cylinders are fixedly connected between the bottom plate and the top plate, a lower template is fixedly connected to the middle of the top surface of the bottom plate, an upper template matching the lower template is fixedly connected to the middle of the bottom surface of the top plate, the top surface of the lower template is provided with two left-right symmetrical first limiting grooves, the bottom surface of the upper template is fixedly provided with two first limiting blocks respectively matching the first limiting grooves, the top surface of the lower template is provided with a molding groove, the bottom of the inner wall of the molding groove is provided with a groove, and a plate body is placed in the groove. The top surface of the plate body is flush with the bottom surface of the inner wall of the forming groove, and an empty groove is provided in the lower template, and a protrusion is fixed in the middle of the bottom surface of the inner wall of the empty groove. A horizontal plate is rotatably installed on the top of the protrusion, and the horizontal plate can swing left and right on the top surface of the protrusion. A first slot connected to the empty groove is provided on the top surface of the lower template, and a pressing rod is movably inserted in the first slot, and the bottom end of the pressing rod is slidably inserted on the left side of the top surface of the horizontal plate. A second slot connected to the empty groove is provided at the bottom of the inner wall of the groove, and a connecting rod is movably inserted in the second slot. The top end of the connecting rod is fixed to the bottom surface of the plate body, and the bottom end of the connecting rod is slidably inserted on the right side of the top surface of the horizontal plate. Springs are fixed on both sides of the bottom surface of the horizontal plate.

[0006] As a further solution of the present invention: two left-right symmetrical sliding grooves are opened on the top surface of the horizontal plate, and sliders are slidably inserted in the two sliding grooves. The bottom end of the pressing rod is rotatably inserted into the top surface of the slider on the left, and the bottom end of the connecting rod is rotatably inserted into the top surface of the slider on the right.

[0007] As a further solution of the present invention: second limiting grooves are provided on both the front and rear sides of the inner wall of the sliding groove, and second limiting blocks located in the second limiting grooves are fixedly connected to both the front and rear sides of the sliding block.

[0008] As a further solution of the present invention: the plate body and the groove are in perfect fit, so that there is no gap between the plate body and the groove.

[0009] As a further solution of the present invention: when the two springs are not subjected to external forces, the horizontal plates are in a flush state on the left and right sides.

[0010] As a further solution of the present invention: when the upper template and the lower template are merged together, the top end of the pressing rod is located in the first slot.

[0011] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0012] After the plastic mold is formed, the utility model can conveniently take the formed plastic out of the mold plate. The specific operation is as follows: place the bottom plate on a flat table or ground, then pour the colloid into the molding groove, then open the cylinder, let the piston rod of the cylinder retract inward, so that the upper template moves downward, and the upper template will be accurately merged to the top surface of the lower template under the action of the limit rod, and in the process of merging, the first limit block on the upper template will enter the first limit groove on the lower template. Through double limit, it can be ensured that the upper template and the lower template are accurately merged together. After the plastic in the molding groove is molded, the upper template is separated from the lower template, and then the pressing rod is pressed downward. The pressing rod will move the left side of the horizontal plate downward, so that the horizontal plate is in an inclined state. The right side of the inclined horizontal plate will move the connecting rod upward. The upward movement of the connecting rod can make the plate body move upward in the groove, so that the formed plastic is separated from the molding groove, which is convenient for work to take the formed plastic. Finally, release the pressing rod, and the horizontal plate will automatically reset under the action of the spring.

[0013] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model from a side view;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the lower template of the present invention;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model when viewed from above.

[0018] In the figure: 1. bottom plate; 2. top plate; 3. limiting rod; 4. cylinder; 5. lower template; 6. upper template; 7. first limiting block; 8. first limiting groove; 9. forming groove; 10. groove; 11. plate body; 12. empty groove; 13. protrusion; 14. horizontal plate; 15. pressing rod; 16. connecting rod; 17. spring; 18. first slot; 19. second slot; 20. slider; 21. slide groove; 22. second limiting groove; 23. second limiting block. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0020] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Please see the attached Figure 1 -Attached Figure 4The utility model is a plastic mold with a double limit structure, including a bottom plate 1, the four corners of the top surface of the bottom plate 1 are fixedly connected to limit rods 3, the surface of the limit rods 3 is movably sleeved with a top plate 2, two left-right symmetrical cylinders 4 are fixed between the bottom plate 1 and the top plate 2, the middle of the top surface of the bottom plate 1 is fixedly connected to a lower template 5, the middle of the bottom surface of the top plate 2 is fixedly connected to an upper template 6 matching the lower template 5, the top surface of the lower template 5 is provided with two left-right symmetrical first limit grooves 8, the bottom surface of the upper template 6 is fixedly connected to two first limit blocks 7 respectively matching the first limit grooves 8, the top surface of the lower template 5 is provided with a molding groove 9, the bottom of the inner wall of the molding groove 9 is provided with a groove 10, a plate body 11 is placed in the groove 10, and the top surface of the plate body 11 is flush with the bottom surface of the inner wall of the molding groove 9 State, an empty slot 12 is provided in the lower template 5, and a protrusion 13 is fixed in the middle of the bottom surface of the inner wall of the empty slot 12. A cross plate 14 is rotatably installed on the top of the protrusion 13, and the cross plate 14 can swing left and right on the top surface of the protrusion 13. A first slot 18 connected to the empty slot 12 is provided on the top surface of the lower template 5, and a pressing rod 15 is movably inserted in the first slot 18. The bottom end of the pressing rod 15 is slidably inserted on the left side of the top surface of the cross plate 14. A second slot 19 connected to the empty slot 12 is provided at the bottom of the inner wall of the groove 10, and a connecting rod 16 is movably inserted in the second slot 19. The top end of the connecting rod 16 is fixed to the bottom surface of the plate body 11, and the bottom end of the connecting rod 16 is slidably inserted on the right side of the top surface of the cross plate 14. Springs 17 are fixed on both sides of the bottom surface of the cross plate 14.

[0022] In one embodiment of the present invention: two left-right symmetrical sliding grooves 21 are opened on the top surface of the horizontal plate 14, and sliders 20 are slidably inserted in the two sliding grooves 21. The bottom end of the pressing rod 15 is rotated and inserted on the top surface of the slider 20 on the left, and the bottom end of the connecting rod 16 is rotated and inserted on the top surface of the slider 20 on the right.

[0023] In one embodiment of the present invention: second limiting grooves 22 are provided on the front and rear sides of the inner wall of the slide groove 21, and second limiting blocks 23 located in the second limiting grooves 22 are fixedly connected on the front and rear sides of the slider 20. The setting of the second limiting grooves 22 can prevent the slider 20 from detaching from the slide groove 21.

[0024] In one embodiment of the present invention, the plate body 11 and the groove 10 are in perfect fit, so that there is no gap between the plate body 11 and the groove 10 .

[0025] In one embodiment of the present invention, when the two springs 17 are not subjected to external forces, the horizontal plate 14 is in a flush state on the left and right sides.

[0026] In one embodiment of the present invention, when the upper template 6 and the lower template 5 are merged together, the top end of the pressing rod 15 is located in the first slot 18 .

[0027] Working principle:

[0028] First, place the base plate 1 on a flat table or ground, then pour the colloid into the molding groove 9, then open the cylinder 4 and let the piston rod of the cylinder 4 retract inward, so that the upper template 6 moves downward. The upper template 6 will be accurately merged to the top surface of the lower template 5 under the action of the limit rod 3, and in the process of merging, the first limit block 7 on the upper template 6 will enter the first limit groove 8 on the lower template 5. Through double limiting, it can ensure that the upper template 6 and the lower template 5 are accurately merged together. After the plastic molding in the molding groove 9 is completed, the upper template 6 is separated from the lower template 5, and then the pressing rod 15 is pressed downward. The pressing rod 15 will move the left side of the horizontal plate 14 downward, so that the horizontal plate 14 is in an inclined state. The right side of the inclined horizontal plate 14 will move the connecting rod 16 upward. The upward movement of the connecting rod 16 can move the plate body 11 upward in the groove 10, thereby separating the molded plastic from the molding groove 9, making it convenient to take the molded plastic. Finally, release the pressing rod 15. At this time, the horizontal plate 14 will automatically reset under the action of the spring 17. At this point, the entire work process is completed.

[0029] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0031] It should be noted that the equipment structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. On the premise that those skilled in the art understand the principle of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art.

[0032] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0034] For those skilled in the art, it is possible to make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of the present invention, and they still fall within the scope of protection of the present invention.

Claims

1. A plastic mold with a double limiting structure, comprising a bottom plate (1), characterized in that: The four corners of the top surface of the bottom plate (1) are fixedly connected to limiting rods (3), and the surface of the limiting rods (3) is movably sleeved with the top plate (2). Two left-right symmetrical cylinders (4) are fixedly connected between the bottom plate (1) and the top plate (2). The middle of the top surface of the bottom plate (1) is fixedly connected to a lower template (5), and the middle of the bottom surface of the top plate (2) is fixedly connected to an upper template (6) matching the lower template (5). The top surface of the lower template (5) is provided with two left-right symmetrical first limiting grooves (8), and the bottom surface of the upper template (6) is fixedly connected to two first limiting blocks (7) respectively matching the first limiting grooves (8). The top surface of the lower template (5) is provided with a forming groove (9), and the bottom of the inner wall of the forming groove (9) is provided with a groove (10). A plate body (11) is placed in the groove (10), and the top surface of the plate body (11) is flush with the bottom surface of the inner wall of the forming groove (9). An empty groove is provided in the lower template (5). (12), a protrusion (13) is fixed to the middle of the bottom surface of the inner wall of the empty groove (12), a horizontal plate (14) is rotatably installed on the top of the protrusion (13), and the horizontal plate (14) can swing left and right on the top surface of the protrusion (13), and a first slot (18) connected to the empty groove (12) is opened on the top surface of the lower template (5), and a pressing rod (15) is movably inserted in the first slot (18), and the bottom end of the pressing rod (15) is slidably inserted in the horizontal slot (18). On the left side of the top surface of the plate (14), a second slot (19) is provided at the bottom of the inner wall of the groove (10) and is connected to the empty slot (12). A connecting rod (16) is movably inserted into the second slot (19). The top end of the connecting rod (16) is fixed to the bottom surface of the plate body (11), and the bottom end of the connecting rod (16) is slidably inserted into the right side of the top surface of the horizontal plate (14). Springs (17) are fixed on both sides of the bottom surface of the horizontal plate (14).

2. The plastic mold with a double limiting structure according to claim 1, characterized in that: The top surface of the transverse plate (14) is provided with two symmetrical sliding grooves (21), and a slider (20) is slidably inserted in each of the two sliding grooves (21). The bottom end of the pressing rod (15) is rotatably inserted into the top surface of the slider (20) on the left side, and the bottom end of the connecting rod (16) is rotatably inserted into the top surface of the slider (20) on the right side.

3. The plastic mold with a double limiting structure according to claim 2, characterized in that: Second limiting grooves (22) are provided on both the front and rear sides of the inner wall of the sliding groove (21), and second limiting blocks (23) located in the second limiting grooves (22) are fixedly connected to both the front and rear sides of the sliding block (20).

4. The plastic mold with a double limiting structure according to claim 1, characterized in that: The plate body (11) and the groove (10) are in a perfect fit state, so that there is no gap between the plate body (11) and the groove (10).

5. The plastic mold with a double limiting structure according to claim 1, characterized in that: When the two springs (17) are not subjected to external forces, the horizontal plate (14) is in a flush state on the left and right sides.

6. The plastic mold with a double limiting structure according to claim 1, characterized in that: When the upper template (6) and the lower template (5) are combined together, the top end of the pressing rod (15) is located in the first slot (18).

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