Injection molding fixed plate replacing and positioning device
By employing an injection molding plate replacement and positioning device in an injection molding machine, a motor-driven lead screw and hydraulic oil system are used to achieve clamping, fixing, and precise positioning of the plate, solving the problems of low efficiency and insufficient positioning accuracy of manual operation, and improving the efficiency and accuracy of plate replacement.
Patent Information
- Application Number
- CN202520410678.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-11
AI Technical Summary
When changing the fixed plate of an injection molding machine, relying on manual operation leads to low efficiency and difficulty in ensuring positioning accuracy. In particular, when changing a larger fixed plate, positioning deviations caused by human factors are prone to occur.
An injection molding positioning device is adopted, which drives the positioning device of the clamping table by rotating the lead screw driven by the motor, thereby achieving the positioning effect of the positioning device.
It enables the clamping, fixing, and precise positioning of different types of mounting plates, improving the efficiency and accuracy of mounting plate replacement.
Smart Images

Figure CN223790894U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of fixed plate auxiliary replacement, specifically to a positioning device for replacing injection molding fixed plate. BACKGROUND
[0002] The injection molding machine is a device that uses the thrust of a screw or plunger to inject molten plastic into a closed mold cavity at high pressure and speed, and then cools and solidifies to obtain a plastic product that is almost identical in shape to the mold cavity.
[0003] However, the injection molding machine often needs to replace the fixed plate during use, and the positioning is mainly relied on the experience and manual operation of the operator. The operator needs to place the fixed plate in the approximately correct position by visual inspection and manual adjustment, and then fix it. However, when a large fixed plate is encountered, this method is not only inefficient, but also difficult to ensure positioning accuracy, and is prone to positioning deviation due to human factors.
[0004] To solve the above problems, the present application provides a positioning device for replacing injection molding fixed plate. SUMMARY
[0005] The utility model discloses a positioning device for replacing injection molding fixed plate to solve the problems existing in the prior art.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a positioning device for replacing injection molding fixed plate, comprising a placing table, the surface of the placing table is slidably connected with a clamping table, the side surface of the placing table is fixedly connected with a motor, the inside of the placing table is rotatably connected with a lead screw, the inside of the clamping table is provided with a liquid storage groove, the clamping table is provided with a sliding groove through the liquid storage groove, the inside of the liquid storage groove and the sliding groove is filled with hydraulic oil, the clamping table is slidably connected with a piston plate through the sliding groove, the side surface of the piston plate is fixedly connected with a thimble, the side surface of the clamping table is fixedly connected with a sliding plate, the surface of the sliding plate is fixedly connected with a spring, and one end of the spring is fixedly connected with a clamping plate.
[0007] As a preferred embodiment, the output end of the motor is fixedly connected with the lead screw, and the surface of the lead screw is threadedly connected with the clamping table. The motor has enough power to move the two clamping tables towards the injection molding fixed plate until they are clamped.
[0008] The technical effect of the above-mentioned further scheme is that different models of fixed plates can be clamped and fixed.
[0009] As a preferred embodiment, the side surface of the clamping table is fixedly connected with a sliding plate, the surface of the sliding plate is slidably connected with a sliding column, the top end of the sliding column is fixedly connected with a clamping plate, the surface of the sliding column is fixedly connected with a spring, and one end of the spring is fixedly connected with the clamping plate.
[0010] The technical effect of adopting the above-mentioned further solution is that the motor drives the two clamping platforms to have sufficient power to move towards the injection molding plate until they are clamped.
[0011] In a preferred embodiment, a sliding column is fixedly connected to the side of the clamping plate, and the surface of the sliding column is slidably connected to the sliding plate.
[0012] The technical effect of adopting the above-mentioned further solution is that the fixing effect on the fixed plate is enhanced by the linkage of the spring, the sliding column and the clamping plate.
[0013] In a preferred embodiment, a slide is fixedly connected to the lower end of the shelf, a roller is rotatably connected inside the slide, a support plate is rolledly connected to the surface of the roller, a telescopic rod is fixedly connected to the lower end of the support plate, the telescopic rod is provided with a lead screw, a base plate is fixedly connected to the lower end of the telescopic rod, and a slide rail is fixedly connected to the upper end of the support plate, with the surface of the roller slidably connected to the slide rail.
[0014] The technical effect of adopting the above-mentioned further solution is that it reduces friction, making the movement of the slide table easier.
[0015] In a preferred embodiment, a first electric cylinder is fixedly connected to the surface of the pallet, and the output end of the first electric cylinder is fixedly connected to the slide table.
[0016] The technical effect of adopting the above-mentioned further solution is that it enables the positioning adjustment of the fixed plate in this direction.
[0017] In a preferred embodiment, a second electric cylinder is fixedly connected to the upper end of the base plate, and the output end of the second electric cylinder is fixedly connected to the support plate.
[0018] The technical effect of adopting the above-mentioned further solution is that the positioning adjustment of the plate in the vertical direction is achieved by the second electric cylinder.
[0019] This utility model provides a device for replacing and positioning injection molding plates. It has the following advantages:
[0020] The starter motor drives the lead screw to rotate, which in turn drives the clamping platform to move closer to the fixed plate, thereby clamping the fixed plate. When the ejector pin is squeezed, it drives the corresponding piston plate to move inward, thus compressing the hydraulic oil and pushing the uncompressed ejector pin to move outward. This ensures that even when the contact surface is irregular, the fixed plate can still be clamped and fixed. The clamping plates and springs further enhance the limiting of the fixed plate, thereby preventing slippage during installation and achieving the positioning effect during installation.
[0021] The first electric cylinder is activated to move the stationary plate horizontally, and the second electric cylinder is activated to move the stationary plate vertically, thereby enabling faster and more precise positioning when changing the stationary plate. Attached Figure Description
[0022] Figure 1 A three-dimensional structural diagram of an injection molding plate replacement and positioning device provided by this utility model;
[0023] Figure 2 A three-dimensional bottom view of an injection molding plate replacement and positioning device provided by this utility model;
[0024] Figure 3 A tray and related schematic diagram of an injection molding plate replacement and positioning device provided by this utility model;
[0025] Figure 4 The present invention provides a clamping platform and related schematic diagrams for an injection molding plate replacement and positioning device.
[0026] Legend:
[0027] 1. Display platform; 2. Clamping platform; 3. Motor; 4. Lead screw; 5. Slide table; 6. Roller; 7. Support plate; 8. Slide rail; 9. First electric cylinder; 10. Second electric cylinder; 11. Telescopic rod; 12. Base plate; 13. Liquid storage tank; 14. Slide groove; 15. Hydraulic oil; 16. Piston plate; 17. Ejector pin; 18. Slide plate; 19. Slide column; 20. Clamping plate; 21. Spring. Detailed Implementation
[0028] 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.
[0029] like Figure 1 - Figure 4As shown, this embodiment provides a technical solution: a positioning device for replacing injection molding plates, including a platform 1, with clamping platforms 2 slidably connected to the surface of the platform 1. Two clamping platforms 2 are provided. A motor 3 is fixedly connected to the side of the platform 1. A lead screw 4 is rotatably connected inside the platform 1. The lead screw 4 consists of two threaded rods with opposite thread directions. A liquid storage tank 13 is provided inside the clamping platform 2. A sliding groove 14 is provided through the liquid storage tank 13. The liquid storage tank 13 and the sliding groove 14 are filled with hydraulic oil 15. A piston plate 16 is slidably connected to the clamping platform 2 through the sliding groove 14. The side of the piston plate 16 is fixedly connected to the motor 3. The fixed connection has a pin 17, a slide groove 14, a piston plate 16 and a pin 17, each corresponding to a pin 17, and there are multiple of each. When the pin 17 that contacts the fixed plate is squeezed, it drives the corresponding piston plate 16 to move inward, thereby compressing the hydraulic oil 15, which in turn pushes the pin 17 that is not squeezed to move outward, so that even when the contact surface is irregular, it can still clamp and fix the fixed plate. The side of the clamping platform 2 is fixedly connected to a slide plate 18, and the surface of the slide plate 18 is fixedly connected to a spring 21. One end of the spring 21 is fixedly connected to a clamping plate 20, and the clamping plate 20 strengthens the fixing effect of the fixed plate through the spring 21.
[0030] Going a step further, such as Figure 2 - Figure 4 As shown: The output end of the motor 3 is fixedly connected to the lead screw 4. The surface of the lead screw 4 is threadedly connected to the clamping platform 2. The outer side wall of the lead screw 4 and the inner side wall of the clamping platform 2 are adapted to each other. The motor 3 drives the lead screw 4 to rotate, thereby driving the two clamping platforms 2 to move towards the injection molding plate until they are clamped. The side of the clamping plate 20 is fixedly connected to the sliding column 19. The surface of the sliding column 19 is slidably connected to the slide plate 18. The spring 21 and the sliding column 19 are in one-to-one correspondence. There are four sets in total, with three in each set. One end of the spring 21 is fixedly connected to the clamping plate 20. When the clamping plate 20 contacts the plate, it moves backward to compress the spring 21, thereby strengthening the device to achieve the effect of fixing the plate.
[0031] The above solutions also have the problem that the fixed plate cannot be moved and adjusted horizontally, such as... Figure 2 - Figure 3As shown: A slide table 5 is fixedly connected to the lower end of the platform 1. Rollers 6 are rotatably connected inside the slide table 5. There are two sets of rollers 6, which are arranged symmetrically. Each set has 5 slide tables. A support plate 7 is rotatably connected to the surface of the rollers 6. A telescopic rod 11 is fixedly connected to the lower end of the support plate 7. The telescopic rod 11 is equipped with 4 lead screws. A base plate 12 is fixedly connected to the lower end of the telescopic rod 11. A slide rail 8 is fixedly connected to the upper end of the support plate 7. The surface of the rollers 6 is slidably connected to the slide rail 8. The width of the groove in the slide rail 8 is the same as the height of the rollers 6. The constraint of the slide rail 8 ensures that the rollers 6 can only drive the slide table 5 to move along the direction of the slide rail 8, and the friction is reduced, making the movement of the slide table 5 easier. A first electric cylinder 9 is fixedly connected to the surface of the support plate 7. The output end of the first electric cylinder 9 is fixedly connected to the slide table 5. The slide table 5 is moved by the first electric cylinder 9, thereby realizing the positioning adjustment of the fixed plate in this direction.
[0032] The above solutions also have the problem that the fixed plate cannot be moved and positioned in the vertical direction, such as... Figure 2 As shown, a second electric cylinder 10 is fixedly connected to the upper end of the base plate 12. The output end of the second electric cylinder 10 is fixedly connected to the support plate 7. The connection between the output end of the second electric cylinder 10 and the support plate 7 is at the center of the support plate 7. With the assistance of the telescopic rod 11, the second electric cylinder 10 drives the support plate 7 to rise and fall, thereby realizing the vertical positioning adjustment of the plate.
[0033] Working principle:
[0034] like Figures 1-4 As shown:
[0035] In use: First, place the fixed plate on the platform 1. The two clamps 2 on the surface of the platform 1 are driven by the motor 3 to rotate the lead screw 4. Since the lead screw 4 is composed of two threaded rods with opposite thread directions, it can drive the clamps 2 to slide towards each other, thus achieving the initial fixation of the fixed plate. The clamps 2 are equipped with a liquid storage tank 13 and a sliding groove 14, which are filled with hydraulic oil 15. When some of the ejector pins 17 are squeezed by the fixed plate, the piston plate 16 is driven to make the hydraulic oil 15 flow, which can push the ejector pins 17 that are not squeezed, so that it can be effectively clamped even when the contact surface of the fixed plate is irregular. The fixing effect of the fixed plate is enhanced by the linkage of the spring 21, the sliding column 19 and the clamp 20. The roller 6 cooperates with the slide rail 8 on the support plate 7.
[0036] At this time, the first electric cylinder 9 is activated. Driven by the first electric cylinder 9, the slide table 5 can move the fixed plate along the slide rail 8 to complete the horizontal positioning adjustment.
[0037] At this time, the second electric cylinder 10 is activated. With the assistance of the telescopic rod 11, the second electric cylinder 10 drives the pallet 7 to rise and fall, thereby achieving vertical positioning adjustment of the fixed plate and ultimately playing a role in precise positioning when the fixed plate is replaced.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A device for replacing and positioning injection molding plates, comprising a platform (1), characterized in that, The surface of the platform (1) is slidably connected to a clamp (2), the side of the platform (1) is fixedly connected to a motor (3), the inside of the platform (1) is rotatably connected to a lead screw (4), the inside of the clamp (2) is provided with a liquid storage tank (13), the clamp (2) is provided with a sliding groove (14) through the liquid storage tank (13), the inside of the liquid storage tank (13) and the sliding groove (14) is filled with hydraulic oil (15), the clamp (2) is slidably connected to a piston plate (16) through the sliding groove (14), the side of the piston plate (16) is fixedly connected to a pin (17), the side of the clamp (2) is fixedly connected to a slide plate (18), the surface of the slide plate (18) is fixedly connected to a spring (21), and one end of the spring (21) is fixedly connected to a clamp plate (20).
2. The injection molding plate replacement and positioning device according to claim 1, characterized in that, The output end of the motor (3) is fixedly connected to the lead screw (4), and the surface of the lead screw (4) is threadedly connected to the clamp (2).
3. The injection molding plate replacement and positioning device according to claim 1, characterized in that, A sliding column (19) is fixedly connected to the side of the clamp (20), and the surface of the sliding column (19) is slidably connected to the sliding plate (18).
4. The injection molding plate replacement and positioning device according to claim 1, characterized in that, The lower end of the shelf (1) is fixedly connected to a slide (5), and the inside of the slide (5) is rotatably connected to a roller (6). A support plate (7) is provided on the roller (6), and a telescopic rod (11) is fixedly connected to the bottom of the support plate (7). A base plate (12) is fixedly connected to the fixed end of the telescopic rod (11), and a slide rail (8) is fixedly connected to the upper end of the support plate (7). The surface of the roller (6) is slidably connected to the slide rail (8).
5. The injection molding plate replacement and positioning device according to claim 4, characterized in that, A first electric cylinder (9) is fixedly connected to the pallet (7), and the output end of the first electric cylinder (9) is fixedly connected to the slide (5).
6. The injection molding plate replacement and positioning device according to claim 4, characterized in that, The top of the base plate (12) is fixedly connected to a second electric cylinder (10), and the output end of the second electric cylinder (10) is fixedly connected to the support plate (7).