Injection molding device facilitating mold replacement

Abstract

The utility model discloses an injection molding device convenient for replacing a mold, and belongs to the technical field of injection molding equipment. An upper die frame easy to change a die is arranged on the sliding plate, and an upper die core is clamped in the upper die frame easy to change the die; a lower die frame easy to change a die is arranged on the base station, and a lower die core is clamped in the lower die frame easy to change the die. The upper die frame easy to change the die comprises an upper supporting plate, an upper side plate, a supporting plate, an upper supporting pulley and a T-shaped sliding block, and the lower die frame easy to change the die comprises a lower supporting plate, a lower side plate, a pressing block, a sliding connecting plate and a lower supporting pulley. Through the mode, the upper mold core and the lower mold core are supported by the upper supporting pulley and the lower supporting pulley respectively by controlling the vertical movement of the supporting plate and the pressing block, so that an operator can conveniently carry out replacement locking work on the upper mold core and the lower mold core.

Description

An injection molding device that facilitates mold changing Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and specifically to an injection molding device that facilitates mold replacement. Background Technology

[0002] Injection molds are the core tools in the production of plastic products, and their design and manufacturing directly affect product quality and production efficiency.

[0003] Conventional vertical injection molding machines typically use molds consisting of a modularly designed mold frame and mold core. When molding different workpieces, different molding effects can be achieved simply by changing the mold core. However, the mold core is quite heavy, and changing different mold cores on the mold frame requires a high level of manual labor, making the mold core replacement work rather inconvenient.

[0004] Based on this, the present invention designs an injection molding device that facilitates mold replacement to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an injection molding device that facilitates mold replacement.

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

[0007] An injection molding device that facilitates mold changing, including a base;

[0008] The base is symmetrically fixedly installed with sliding columns at both ends, and a top plate is fixedly installed on the top of the sliding columns. A push cylinder is fixedly installed on the top plate, and the output end of the push cylinder is fixedly connected to the sliding plate. The sliding plate is limited and slidably connected to the sliding column.

[0009] The slide plate is equipped with an easy-change upper mold frame, and the upper mold core is locked inside the easy-change upper mold frame; the base is equipped with an easy-change lower mold frame, and the lower mold core is locked inside the easy-change lower mold frame.

[0010] Furthermore, the easy-change mold upper mold frame includes an upper support plate, an upper side plate, a support plate, upper support pulleys and a T-shaped slider. The upper support plate is fixedly connected to the slide plate. Upper side plates are symmetrically fixedly installed on the left and right ends of the upper support plate. Multiple upper support pulleys are rotatably installed on the inner side of the lower end of the upper side plate through bearings. The upper support pulleys are evenly distributed at equal intervals along the front and rear direction. The upper support pulleys are used to support the base plate of the upper mold core.

[0011] The upper side plate is provided with a T-shaped slide groove. The T-shaped slider is slidably connected to the T-shaped slide groove. A support plate for limiting the base plate of the upper mold core is fixedly installed at the end of the T-shaped slider near the upper support pulley.

[0012] Furthermore, a receiving cavity is formed between the support plate and the upper side plate to fully accommodate the upper support pulley.

[0013] Furthermore, the distance between the upper end of the upper support pulley and the upper support plate is greater than the thickness of the base plate of the upper mold core.

[0014] Furthermore, upper positioning blocks are symmetrically fixedly installed on the left and right sides of the rear end of the upper support plate, and upper stop blocks are symmetrically fixedly installed on the left and right sides of the front end of the upper support plate. The length of the upper stop blocks is less than the length of the upper positioning blocks.

[0015] Furthermore, the easy-change mold lower mold frame includes a lower support plate, a lower side plate, a pressure block, a sliding connecting plate, and lower support pulleys. The lower support plate is fixedly connected to the base. Lower side plates are symmetrically fixedly installed at the left and right ends of the lower support plate. A limiting groove is opened in the lower side plate to limit and slide in connection with the sliding connecting plate. A pressure block is fixedly installed at the upper end of the sliding connecting plate. Multiple lower support pulleys are rotatably installed on the inner side of the lower end of the sliding connecting plate through bearings. The lower support pulleys are evenly distributed at equal intervals along the front-back direction. The lower support pulleys are used to support the substrate of the lower mold core.

[0016] Furthermore, the lower support plate has an inner cavity for completely accommodating the lower support pulley.

[0017] Furthermore, the distance between the upper end of the sliding connecting plate and the lower end of the pressure block is greater than the thickness of the substrate of the lower membrane core.

[0018] Furthermore, lower positioning blocks are symmetrically fixedly installed on the left and right sides of the rear end of the lower support plate, and lower stop blocks are symmetrically fixedly installed on the left and right sides of the front end of the lower support plate. The length of the lower stop blocks is less than the length of the lower positioning blocks.

[0019] Furthermore, a synchronous release agent spraying mechanism is provided between the base and the slide plate. The synchronous release agent spraying mechanism includes a vertical plate, a sliding rod, a mounting plate, a nozzle, and a linkage rod. The vertical plate is fixedly connected to the base, and the upper end of the vertical plate is slidably connected to the sliding rod. The front end of the sliding rod is fixedly mounted with a mounting plate. The upper and lower ends of the mounting plate are respectively fixedly mounted with nozzles for spraying the release agent onto the upper mold core and the lower mold core. The nozzles are connected to the release agent supply mechanism through pipelines. The two ends of the linkage rod are respectively hinged to the rear end of the mounting plate and the lower end of the slide plate.

[0020] Compared with the prior art, the advantages of this utility model are as follows: 1. By controlling the vertical movement of the support plate and the pressure block, the upper mold core and the lower mold core are supported by the upper support pulley and the lower support pulley respectively, so that the operator can easily replace and lock the upper mold core and the lower mold core.

[0021] 2. By opening and closing the upper and lower molds, the nozzle automatically moves in and out between the upper mold core and the lower mold core, automatically spraying release agent onto the surfaces of the upper mold core and the lower mold core. This achieves automated and synchronous release agent spraying during injection molding. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0023] Figure 1 is a front view of an injection molding device of the present invention that facilitates mold replacement;

[0024] Figure 2 is a three-dimensional structural view of the synchronous spraying release agent mechanism of this utility model;

[0025] Figure 3 is a schematic diagram of the mold structure of this utility model;

[0026] Figure 4 is a schematic diagram of the mold structure of this utility model (II);

[0027] Figure 5 is a schematic diagram of the mold structure of this utility model;

[0028] Figure 6 is a schematic diagram of the mold structure of this utility model;

[0029] Figure 7 is a schematic diagram of the mold structure of this utility model.

[0030] The labels in the diagram represent:

[0031] 10. Base; 11. Top plate; 12. Sliding column; 13. Slide plate; 14. Push cylinder; 2. Synchronous release agent spraying mechanism; 21. Vertical plate; 22. Sliding rod; 23. Mounting plate; 24. Nozzle; 25. Linkage rod; 3. Easy-change upper mold frame; 31. Upper support plate; 32. Upper side plate; 33. Support plate; 34. Upper support pulley; 35. T-shaped slider; 36. Upper positioning block; 37. Upper stop block; 4. Easy-change lower mold frame; 41. Lower support plate; 42. Lower side plate; 43. Pressure block; 44. Sliding connecting plate; 45. Lower support pulley; 46. Lower positioning block; 47. Lower stop block; 5. Upper mold core; 6. Lower mold core. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0034] Example 1: In some embodiments, please refer to Figures 1-7 of the accompanying drawings, an injection molding device that facilitates mold replacement includes a base 10;

[0035] The base 10 is symmetrically fixedly installed with sliding columns 12 at its left and right ends. A top plate 11 is fixedly installed on the top of the sliding column 12. A push cylinder 14 is fixedly installed on the top plate 11. The output end of the push cylinder 14 is fixedly connected to the slide plate 13. The slide plate 13 is limited to sliding connection with the sliding column 12.

[0036] The slide plate 13 is provided with an easy-change upper mold frame 3, and the upper mold core 5 is locked inside the easy-change upper mold frame 3; the base 10 is provided with an easy-change lower mold frame 4, and the lower mold core 6 is locked inside the easy-change lower mold frame 4.

[0037] Both the upper mold core 5 and the lower mold core 6 adopt mature technologies in this field. The upper mold core 5 is composed of an upper substrate and a lower A plate. The lower mold core 6 is composed of an upper B plate, a lower substrate, and ejector pins and ejector plates on the lower side of the substrate.

[0038] The easy-change upper mold frame 3 includes an upper support plate 31, an upper side plate 32, a support plate 33, upper support pulleys 34 and a T-shaped slider 35. The upper support plate 31 is fixedly connected to the slide plate 13. The upper side plate 32 is symmetrically fixedly installed on the left and right ends of the upper support plate 31. Multiple upper support pulleys 34 are rotatably installed on the inner side of the lower end of the upper side plate 32 through bearings. The upper support pulleys 34 are evenly distributed at equal intervals along the front and rear direction. The upper support pulleys 34 are used to support the base plate of the upper mold core 5.

[0039] A T-shaped groove is provided in the upper side plate 32. The T-shaped slider 35 is slidably connected to the T-shaped groove. A support plate 33 for limiting the base plate of the upper mold core 5 is fixedly installed at one end of the T-shaped slider 35 near the upper support pulley 34. The support plate 33 and the upper side plate 32 form a receiving cavity for completely accommodating the upper support pulley 34.

[0040] The distance between the upper end of the upper support pulley 34 and the upper support plate 31 is greater than the thickness of the base plate of the upper mold core 5.

[0041] Upper positioning blocks 36 are symmetrically fixedly installed on the left and right sides of the rear end of the upper support plate 31, and upper stop blocks 37 are symmetrically fixedly installed on the left and right sides of the front end of the upper support plate 31. The length of the upper stop block 37 is less than the length of the upper positioning block 36.

[0042] When replacing the upper mold core 5, pull the support plate 33 downwards. Under the limiting action of the T-shaped slider 35 and the T-shaped slide, the support plate 33 moves vertically downwards. When the T-shaped slider 35 moves to the lowest point of its stroke, the upper support pulley 34 is higher than the support plate 33, so that the base plate of the upper mold core 5 is supported by the upper support pulley 34, and the base plate of the upper mold core 5 is lower than the lowest point of the upper stop block 37. The upper mold core 5 is no longer blocked by the upper stop block 37. At this time, because the distance between the upper end of the upper support pulley 34 and the upper support plate 31 is greater than the thickness of the base plate of the upper mold core 5, and the upper mold core 5 can slide smoothly on the upper support pulley 34, the operator can easily replace the upper mold core 5. After the replacement is completed, push the support plate 33 upwards until the T-shaped slider 35 moves to the highest point of its stroke. At this time, the distance between the support plate 33 and the upper support plate 31 is the same as the thickness of the base plate of the upper mold core 5, and the front end of the upper mold core 5 is blocked by the upper stop block 37, thereby realizing the quick replacement and locking of the upper mold core 5.

[0043] The easy-change mold lower mold frame 4 includes a lower support plate 41, a lower side plate 42, a pressure block 43, a sliding connecting plate 44, and lower support pulleys 45. The lower support plate 41 is fixedly connected to the base 10. The lower side plates 42 are symmetrically fixedly installed at the left and right ends of the lower support plate 41. The lower side plates 42 are provided with limiting grooves that are slidably connected to the sliding connecting plate 44. The pressure block 43 is fixedly installed at the upper end of the sliding connecting plate 44. Multiple lower support pulleys 45 are rotatably installed on the inner side of the lower end of the sliding connecting plate 44 through bearings. The lower support pulleys 45 are evenly distributed at equal intervals along the front-back direction. The lower support pulleys 45 are used to support the substrate of the lower mold core 6. The inner side of the lower support plate 41 is provided with a receiving cavity for completely accommodating the lower support pulleys 45.

[0044] The distance between the upper end of the sliding connecting plate 44 and the lower end of the pressure block 43 is greater than the thickness of the substrate of the lower membrane core 6.

[0045] Lower positioning blocks 46 are symmetrically fixedly installed on the left and right sides of the rear end of the lower support plate 41, and lower stop blocks 47 are symmetrically fixedly installed on the left and right sides of the front end of the lower support plate 41. The length of the lower stop block 47 is less than the length of the lower positioning block 46.

[0046] When replacing the lower film core 6, the pressure block 43 is pulled upward. Under the limiting action of the sliding connecting plate 44 and the limiting slide groove, the pressure block 43 moves vertically upward. The lower support pulley 45 is higher than the lower support plate 41, thus lifting the substrate of the lower film core 6. The lower film core 6 is no longer blocked by the lower stop block 47. At this time, because the distance between the upper end of the sliding connecting plate 44 and the lower end of the pressure block 43 is greater than the thickness of the substrate of the lower film core 6, and the lower film core 6 can slide smoothly on the lower support pulley 45, the operator can easily replace the lower film core 6. After the replacement is completed, the pressure block 43 is pushed downward to reset, so that the lower support pulley 45 is completely retracted into the receiving cavity. The distance between the lower end of the pressure block 43 and the upper inner side of the lower support plate 41 is the same as the thickness of the substrate of the lower film core 6, and the front end of the lower film core 6 is blocked by the lower stop block 47, thereby realizing the quick replacement and locking of the lower film core 6.

[0047] The vertical movement of the pallet 33 and the pressure block 43 can be driven by a cylinder or an electric cylinder. The upper support plate 31 and the T-shaped slider 35 are provided with locking holes for use. When the pallet 33 moves to its highest and lowest points of travel, the position of the pallet 33 is fixed by inserting a pin into the locking hole. The lower support plate 41 and the sliding connecting plate 44 are also provided with locking holes for use. When the pressure block 43 moves to its highest and lowest points of travel, the position of the pressure block 43 is fixed by inserting a pin into the locking hole.

[0048] A synchronous release agent spraying mechanism 2 is also provided between the base 10 and the slide plate 13. The synchronous release agent spraying mechanism 2 includes a vertical plate 21, a sliding rod 22, a mounting plate 23, a nozzle 24, and a linkage rod 25. The vertical plate 21 is fixedly connected to the base 10. The upper end of the vertical plate 21 is slidably connected to the sliding rod 22. The front end of the sliding rod 22 is fixedly mounted with the mounting plate 23. The upper and lower ends of the mounting plate 23 are respectively fixedly mounted with nozzles 24 for spraying the release agent onto the upper mold core 5 and the lower mold core 6. The nozzles 24 are connected to the release agent supply mechanism, such as a release agent gas tank, through pipelines. The two ends of the linkage rod 25 are respectively hinged to the rear end of the mounting plate 23 and the lower end of the slide plate 13.

[0049] In this invention, when the upper and lower molds are closed, the slide plate 13 drives the linkage rod 25 to move backward under the limiting action of the upright plate 21, so that the nozzle 24 can avoid it. When the upper and lower molds are completely separated, the slide plate 13 drives the linkage rod 25 to move forward. After the workpiece is taken out from the mold cavity, the release agent is automatically sprayed on the surface of the upper mold core 5 and the lower mold core 6, realizing the automated and synchronous spraying of release agent during injection molding.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An injection molding device for easy mold changing, comprising a base (10), characterized in that: The base (10) is symmetrically fixed with sliding columns (12) at both ends. A top plate (11) is fixedly installed on the top of the sliding column (12). A push cylinder (14) is fixedly installed on the top plate (11). The output end of the push cylinder (14) is fixedly connected to the slide plate (13). The slide plate (13) is limited to sliding connection with the sliding column (12). An easy-change upper mold frame (3) is provided on the slide plate (13). An upper mold core (5) is snapped into the easy-change upper mold frame (3). An easy-change lower mold frame (4) is provided on the base (10). A lower mold core (6) is snapped into the easy-change lower mold frame (4).

2. The injection molding device for easy mold replacement according to claim 1, characterized in that, The easy-change mold upper mold frame (3) includes an upper support plate (31), an upper side plate (32), a support plate (33), upper support pulleys (34) and a T-shaped slider (35). The upper support plate (31) is fixedly connected to the slide plate (13). The upper side plates (32) are symmetrically fixedly installed on the left and right ends of the upper support plate (31). Multiple upper support pulleys (34) are rotatably installed on the inner side of the lower end of the upper side plate (32) through bearings. The upper support pulleys (34) are evenly distributed at equal intervals along the front and rear directions. The upper support pulleys (34) are used to support the base plate of the upper mold core (5). A T-shaped groove is provided in the upper side plate (32). The T-shaped slider (35) is limited and slidably connected to the T-shaped groove. A support plate (33) for limiting the base plate of the upper mold core (5) is fixedly installed on one end of the T-shaped slider (35) near the upper support pulley (34).

3. The injection molding device for easy mold replacement according to claim 2, characterized in that, The support plate (33) and the upper side plate (32) form a receiving cavity for fully accommodating the upper support pulley (34).

4. The injection molding device for easy mold replacement according to claim 2, characterized in that, The distance between the upper end of the upper support pulley (34) and the upper support plate (31) is greater than the thickness of the base plate of the upper mold core (5).

5. The injection molding device for easy mold replacement according to claim 2, characterized in that, Upper positioning blocks (36) are symmetrically fixedly installed on the left and right sides of the rear end of the upper support plate (31), and upper stop blocks (37) are symmetrically fixedly installed on the left and right sides of the front end of the upper support plate (31). The length of the upper stop block (37) is less than the length of the upper positioning block (36).

6. The injection molding device for easy mold replacement according to claim 1, characterized in that, The easy-change mold lower mold frame (4) includes a lower support plate (41), a lower side plate (42), a pressure block (43), a sliding connecting plate (44), and lower support pulleys (45). The lower support plate (41) is fixedly connected to the base (10). The lower side plates (42) are symmetrically fixedly installed on the left and right ends of the lower support plate (41). The lower side plates (42) are provided with a limiting groove that is slidably connected to the sliding connecting plate (44). The pressure block (43) is fixedly installed on the upper end of the sliding connecting plate (44). Multiple lower support pulleys (45) are rotatably installed on the inner side of the lower end of the sliding connecting plate (44) through a bearing. The lower support pulleys (45) are evenly distributed at equal intervals along the front and rear directions. The lower support pulleys (45) are used to support the substrate of the lower mold core (6).

7. The injection molding device for easy mold replacement according to claim 6, characterized in that, The lower support plate (41) has an inner cavity for completely accommodating the lower support pulley (45).

8. The injection molding device for easy mold replacement according to claim 6, characterized in that, The distance between the upper end of the sliding connecting plate (44) and the lower end of the pressure block (43) is greater than the thickness of the substrate of the lower membrane core (6).

9. The injection molding device for easy mold replacement according to claim 6, characterized in that, Lower positioning blocks (46) are symmetrically fixedly installed on the left and right sides of the rear end of the lower support plate (41), and lower stop blocks (47) are symmetrically fixedly installed on the left and right sides of the front end of the lower support plate (41). The length of the lower stop block (47) is less than the length of the lower positioning block (46).

10. The injection molding device for easy mold replacement according to claim 1, characterized in that, A synchronous release agent spraying mechanism (2) is also provided between the base (10) and the slide plate (13). The synchronous release agent spraying mechanism (2) includes a vertical plate (21), a slide rod (22), a mounting plate (23), a nozzle (24), and a linkage rod (25). The vertical plate (21) is fixedly connected to the base (10). The upper end of the vertical plate (21) is limited and slidably connected to the slide rod (22). The front end of the slide rod (22) is fixedly installed with the mounting plate (23). The upper and lower ends of the mounting plate (23) are respectively fixedly installed with nozzles (24) for spraying the release agent onto the upper mold core (5) and the lower mold core (6). The nozzles (24) are connected to the release agent supply mechanism through pipelines. The two ends of the linkage rod (25) are respectively hinged to the rear end of the mounting plate (23) and the lower end of the slide plate (13).

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