A spliced plastic mold

Abstract

The utility model relates to the technical field of plastic mould, and disclose a spliced plastic mould, this spliced plastic mould, including the bottom plate, the bottom plate is fixedly installed with the right angle frame, be provided with plastic assembly on the bottom plate, plastic assembly includes lower plastic mould. This spliced plastic mould, in order to make the device realize spliced mould's quick and accurate assembly, through being provided with plastic assembly, this component cooperation hydraulic device drive round bar drives the presser plate to drop, and spring rod makes upper plastic mould and lower plastic mould gradually adhere by elastic buffer, and when locating rod inserts locating hole, forms automatic guiding, and cooperation slide bar slides in the sliding slot, ensure the alignment accuracy of upper and lower moulds, avoid the flash or dimensional deviation caused by misplacement, and upper plastic tank and lower plastic tank correspond and form injection molding cavity, and the communication design of lower overflow glue tank and upper overflow glue tank can discharge extra molten glue in time, realize the quick and accurate assembly of spliced mould.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, specifically to a splicing plastic mold. Background Technology

[0002] In the field of plastic product manufacturing, as market demands become increasingly diversified, plastic molds need to be frequently adapted to the shape, size, and functional requirements of different products.

[0003] Modular plastic molds typically consist of a mold frame body, modular splicing units, a quick-positioning and locking mechanism, and a guiding system. The mold frame body serves as the basic framework, providing stable support for the mold. The modular splicing units include cavity modules, core modules, gating system modules, etc., each designed according to product requirements, and can be quickly disassembled and replaced. The quick-positioning and locking mechanism uses structures such as positioning pins, dovetail grooves, or hydraulic locks to ensure precise positioning and secure connection of the splicing units. The guiding system uses guide pillars and guide sleeves to achieve precise mold closing guidance for the upper and lower molds.

[0004] However, the above-mentioned equipment has obvious shortcomings in use. The hydraulic drive in the traditional splicing mold directly drives the mold to close quickly without buffer design, which can easily cause wear or deformation of the mold edge and affect its service life. In view of this, we propose a splicing plastic mold. Utility Model Content

[0005] The purpose of this utility model is to provide a splicing plastic mold to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A modular plastic mold includes a base plate, on which a right-angle frame is fixedly mounted, and on which a plastic component is disposed, the plastic component comprising:

[0008] A lower plastic mold is fixedly installed on the base plate. The lower plastic mold has a lower plastic groove and a lower overflow groove. A positioning rod is fixedly installed on the lower plastic mold. A plastic tube is fixedly installed on the lower plastic mold.

[0009] A hydraulic device is fixedly installed on the right-angle frame. A round rod is fixedly installed on the piston end of the hydraulic device. A pressing plate is fixedly installed on the other end of the round rod. A spring rod is fixedly installed on the pressing plate. An upper plastic mold is fixedly installed on the other end of the spring rod. An upper plastic groove and an upper overflow groove are opened on the upper plastic mold.

[0010] The upper plastic mold has a positioning hole, one end of a slide rod is fixedly installed on the upper plastic mold, and a round block is fixedly installed on the other end of the slide rod. The right-angle frame has a sliding groove.

[0011] In a further embodiment, multiple sets of positioning rods, positioning holes, and spring rods are provided, and the upper plastic mold, upper plastic groove, positioning hole, and upper overflow groove are located directly above the lower plastic mold, lower plastic groove, and lower overflow groove.

[0012] In a further embodiment, the upper plastic groove and the lower plastic groove are positioned correspondingly, and the multiple sets of positioning rods are positioned corresponding to the multiple sets of positioning holes.

[0013] In a further embodiment, the slide bar slides inside the groove, and the positioning rod has a shape that is narrower at the top and wider at the bottom.

[0014] In a further embodiment, an auxiliary component is provided on the upper plastic mold. The auxiliary component includes a mounting plate. The mounting plate is fixedly installed on the upper plastic mold. One end of a limit rod is fixedly installed on the mounting plate, and a limit plate is fixedly installed on the other end of the limit rod. A rubber ring is fixedly installed on the right-angle frame.

[0015] In a further embodiment, the mounting plate, limiting rod, limiting plate and rubber ring are provided in multiple sets, with the multiple sets of limiting rods passing through the top of the right-angle frame.

[0016] In a further embodiment, the rubber ring is positioned directly below the limiting plate, and the limiting plate is made of rubber.

[0017] Compared with the prior art, this utility model provides a splicing plastic mold, which has the following beneficial effects:

[0018] 1. This modular plastic mold, in order to enable rapid and precise assembly of the modular mold, is equipped with a plastic component. This component, in conjunction with a hydraulic device, drives a round rod to lower a pressing plate. A spring rod, through elastic buffering, gradually brings the upper and lower plastic molds together. When the positioning rod is inserted into the positioning hole, it forms an automatic guide. Combined with the sliding of the slide rod in the slide groove, it ensures the alignment accuracy of the upper and lower molds, avoiding flash or dimensional deviations caused by misalignment. The upper and lower plastic grooves correspond to form the injection cavity. The connection design between the lower and upper overflow grooves can promptly discharge excess molten plastic, preventing excessive cavity pressure from causing mold deformation. It also facilitates the cleaning of overflow, thus achieving rapid and precise assembly of the modular mold.

[0019] 2. To reduce mold wear caused by impact during mold closing, this modular plastic mold incorporates an auxiliary component. This component, along with multiple limit rods extending above the right-angle frame, forms a double buffer with the limit plate and rubber ring. When the hydraulic device drives the mold to descend rapidly, the limit plate contacts the rubber ring first, reducing the impact speed by 60% through the elastic compression of the rubber. This prevents mold damage or equipment vibration caused by rigid collisions. Simultaneously, the guiding effect of the limit rods ensures the vertical lifting and lowering of the upper plastic mold. Combined with the lateral limiting of the sliding rods, this prevents mold displacement during mold closing, making it particularly suitable for assembling large molds and preventing the risk of tilting due to center of gravity shift. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model in its working state;

[0021] Figure 2 This is a schematic diagram of the overall structure and working state of this utility model from another perspective;

[0022] Figure 3 This is a schematic diagram of the non-working state of the structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the plastic component structure of this utility model;

[0024] Figure 5 This is a three-dimensional schematic diagram of part of the structure of this utility model.

[0025] Explanation of icon numbers:

[0026] 1. Base plate; 2. Right-angle frame;

[0027] 3. Plastic components; 31. Lower plastic mold; 32. Lower plastic channel; 33. Lower overflow channel; 34. Positioning rod; 35. Hydraulic device; 36. Round rod; 37. Pressing plate; 38. Spring rod; 39. Upper plastic mold; 310. Upper plastic channel; 311. Positioning hole; 312. Upper overflow channel; 313. Sliding rod; 314. Round block; 315. Slide groove; 316. Plastic tube;

[0028] 4. Auxiliary components; 41. Mounting plate; 42. Limiting rod; 43. Limiting plate; 44. Rubber ring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0031] Please see Figures 1-5 This utility model provides a technical solution:

[0032] A modular plastic mold includes a base plate 1, on which a right-angle frame 2 is fixedly installed.

[0033] In one embodiment of this utility model, a plastic component 3 is provided on the base plate 1. The plastic component 3 includes a lower plastic mold 31, which is fixedly installed on the base plate 1. The lower plastic mold 31 has a lower plastic groove 32 and a lower overflow groove 33. A positioning rod 34 is fixedly installed on the lower plastic mold 31, and a plastic tube 316 is fixedly installed on the lower plastic mold 31. A hydraulic device 35 is fixedly installed on the right-angle bracket 2. A round rod 36 is fixedly installed at the piston end of the hydraulic device 35, and a pressing plate 37 is fixedly installed at the other end of the round rod 36. A spring rod 38 is fixedly installed at one end of the pressing plate 37, and an upper plastic mold 39 is fixedly installed at the other end of the spring rod 38. An upper plastic groove 31 is provided on the upper plastic mold 39. The upper plastic mold 39 has a positioning hole 311 and a slide rod 313 fixedly installed on one end. A round block 314 is fixedly installed on the other end of the slide rod 313. The right-angle bracket 2 has a sliding groove 315. Multiple sets of positioning rods 34, positioning holes 311 and spring rods 38 are provided. The upper plastic mold 39, upper plastic groove 310, positioning holes 311 and upper overflow groove 312 are located directly above the lower plastic mold 31, lower plastic groove 32 and lower overflow groove 33. The upper plastic groove 310 and lower plastic groove 32 are correspondingly positioned. Multiple sets of positioning rods 34 are correspondingly positioned to multiple sets of positioning holes 311. The slide rod 313 slides inside the sliding groove 315. The positioning rod 34 has a shape that is narrow at the top and wide at the bottom.

[0034] In this embodiment, after the hydraulic device 35 is activated, it drives the round rod 36, which in turn moves the pressing plate 37 and the upper plastic mold 39 downwards. The spring rod 38 is initially in a freely extended state. When the mold descends a certain distance, the upper plastic mold 39 experiences an upward reaction force from the lower plastic mold 31, causing the spring rod 38 to compress. This elastic buffer disperses the impact force of the descending mold, allowing the upper plastic mold 39 to fit snugly against the lower plastic mold 31, preventing rigid collisions. Simultaneously, when the upper and lower molds approach each other, the positioning rod 34, relying on its own shape, inserts... The upper plastic mold 39 is positioned in the positioning hole 311. At the same time, the slide bar 313 slides in the slide groove 315, which restricts the lateral movement of the upper plastic mold 39, thereby effectively avoiding flash or dimensional deviation caused by misalignment. After the upper and lower molds are fitted together, the upper plastic groove 310 and the lower plastic groove 32 are spliced ​​to form a complete injection cavity for accommodating molten plastic. The two are connected to form an overflow channel. At the same time, excess molten plastic is discharged through the lower overflow groove 33 and the upper overflow groove 312, keeping the cavity pressure within a safe range, preventing the mold from deforming due to excessive pressure, and also facilitating the cleaning of overflow.

[0035] In one embodiment of this utility model, an auxiliary component 4 is provided on the upper plastic mold 39. The auxiliary component 4 includes a mounting plate 41. The mounting plate 41 is fixedly installed on the upper plastic mold 39. One end of a limit rod 42 is fixedly installed on the mounting plate 41, and a limit plate 43 is fixedly installed on the other end of the limit rod 42. A rubber ring 44 is fixedly installed on the right-angle frame 2. Multiple sets of mounting plate 41, limit rod 42, limit plate 43 and rubber ring 44 are provided. Multiple sets of limit rods 42 pass through the upper part of the right-angle frame 2. The rubber ring 44 is located directly below the limit plate 43. The limit plate 43 is made of rubber.

[0036] In this embodiment, when the hydraulic device 35 drives the upper plastic mold 39 to descend, the limiting rod 42 moves upward accordingly. When the limiting plate 43 contacts the rubber ring 44, it undergoes elastic deformation under force, which can absorb part of the impact force and effectively reduce mold wear and equipment vibration caused by mold closing impact. After the mold is closed, the molten plastic is injected into the injection cavity composed of the upper plastic tank 310 and the lower plastic tank 32 through the plastic tube 316. When the cavity is full, the excess molten plastic is discharged through the upper overflow tank 312 and the lower overflow tank 33. After the injection is completed, the hydraulic device 35 drives the upper plastic mold 39 to rise and open the mold, remove the molded plastic product, clean the overflow, and then the next injection cycle can be carried out.

[0037] All electrical components mentioned in this application are electrically connected to the PLC controller and 220V AC mains power. The PLC controller is a conventional and known device capable of controlling the hydraulic device 35. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding, which are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art. The supporting structures of the hydraulic drive structure mentioned in this application, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A modular plastic mold, comprising a base plate (1), wherein a right-angle bracket (2) is fixedly mounted on the base plate (1), characterized in that: A plastic component (3) is provided on the base plate (1), and the plastic component (3) includes: The lower plastic mold (31) is fixedly installed on the base plate (1). The lower plastic mold (31) is provided with a lower plastic groove (32) and a lower overflow groove (33). The lower plastic mold (31) is fixedly installed with a positioning rod (34) and a plastic tube (316). A hydraulic device (35) is fixedly installed on the right-angle frame (2). A round rod (36) is fixedly installed on the piston end of the hydraulic device (35). A pressing plate (37) is fixedly installed on the other end of the round rod (36). A spring rod (38) is fixedly installed on the pressing plate (37). An upper plastic mold (39) is fixedly installed on the other end of the spring rod (38). An upper plastic groove (310) and an upper overflow groove (312) are provided on the upper plastic mold (39). Positioning hole (311), the upper plastic mold (39) is provided with positioning hole (311), one end of slide rod (313) is fixedly installed on the upper plastic mold (39), and a round block (314) is fixedly installed on the other end of slide rod (313). The right angle frame (2) is provided with slide groove (315).

2. The modular plastic mold according to claim 1, characterized in that: The positioning rod (34), positioning hole (311) and spring rod (38) are provided in multiple sets. The upper plastic mold (39), upper plastic groove (310), positioning hole (311) and upper overflow groove (312) are located directly above the lower plastic mold (31), lower plastic groove (32) and lower overflow groove (33).

3. The splicing plastic mold according to claim 1, characterized in that: The upper plastic groove (310) and the lower plastic groove (32) are positioned opposite each other, and the multiple sets of positioning rods (34) and the multiple sets of positioning holes (311) are positioned opposite each other.

4. The splicing plastic mold according to claim 1, characterized in that: The slide bar (313) slides inside the slide groove (315), and the positioning rod (34) has a shape that is narrow at the top and wide at the bottom.

5. The splicing plastic mold according to claim 1, characterized in that: An auxiliary component (4) is provided on the upper plastic mold (39). The auxiliary component (4) includes a mounting plate (41). The mounting plate (41) is fixedly installed on the upper plastic mold (39). One end of a limit rod (42) is fixedly installed on the mounting plate (41). The other end of the limit rod (42) is fixedly installed with a limit plate (43). A rubber ring (44) is fixedly installed on the right-angle frame (2).

6. The splicing plastic mold according to claim 5, characterized in that: The mounting plate (41), the limiting rod (42), the limiting plate (43) and the rubber ring (44) are provided in multiple sets, and the multiple sets of the limiting rod (42) pass through the top of the right angle frame (2).

7. A modular plastic mold according to claim 5, characterized in that: The rubber ring (44) is located directly below the limiting plate (43), which is made of rubber.

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