Compression-resistant packing barrel injection mold

Abstract

The utility model discloses a compression-resistant packing barrel injection mold, which relates to the technical field of injection molding, and comprises a base and a mounting rack fixed on the base, the lower surface of the mounting rack is fixedly connected with a third electric telescopic rod, and the telescopic end of the third electric telescopic rod is fixedly connected with a lifting plate. And the lower surface of the lifting plate is fixedly connected with an upper injection molding block. According to the injection molding device, through cooperative use of the fixed disc, the sliding cylinder, the second electric telescopic rod, the adjusting frame, the expansion plate and the first sliding groove, the sliding cylinder is driven by the second electric telescopic rod to move longitudinally, the hinged adjusting frame is driven to generate angle change, and the expansion plate is forced to expand outwards in the radial direction along the first sliding groove; the mechanical linkage design can accurately convert contraction force into uniform expansion force, so that the inner wall of the packaging barrel is completely separated from the mold, deformation or scratching caused by manual prizing is avoided, the mold is particularly suitable for demolding of a barrel body with a complex compression-resistant structure, and the packaging barrel can be taken out smoothly.

Description

A pressure-resistant packaging barrel injection mold Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically an injection mold for a pressure-resistant packaging barrel. Background Technology

[0002] In the packaging industry, "barrel" generally refers to all kinds of barrel packaging containers, mainly used to hold various liquid products. Packaging barrels are classified as follows: iron can packaging barrels, latex paint packaging barrels, coating packaging barrels, pharmaceutical and chemical packaging barrels, and plastic packaging barrels.

[0003] A search revealed a Chinese patent with publication number CN218196633U that discloses an injection molding device for improving the quality of packaging barrels. The device includes a base, with a first vertical plate, a fixed rod, and a second vertical plate at the top of the base. The fixed rod is located between the first and second vertical plates. Under the action of the fixed rod, the crossbar, and the connecting rod, the device can support the first mold, reducing the load on the cylinder. When the first mold moves, the connecting rod can move synchronously under the action of the slider, without affecting the normal movement of the first mold. This device is convenient and practical, and minimizes the risk of damage to the cylinder.

[0004] While the above solutions can support the first mold, reduce the load on the cylinder, and are convenient and practical, minimizing cylinder damage, the injection molding device in the aforementioned patent has difficulty removing the injection-molded packaging barrel. When demolding the packaging barrel, the surface of the packaging barrel will cause injury to the operator due to the high temperature. Therefore, we provide a pressure-resistant packaging barrel injection mold to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an injection mold for pressure-resistant packaging barrels to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure-resistant packaging barrel injection mold, including a base and a mounting frame fixed on the base, a third electric telescopic rod fixedly connected to the lower surface of the mounting frame, a lifting plate fixedly connected to the telescopic end of the third electric telescopic rod, and an upper injection block fixedly connected to the lower surface of the lifting plate;

[0007] A first electric telescopic rod is fixedly connected to one side of the mounting frame. A demolding mechanism is provided at the telescopic end of the first electric telescopic rod. The demolding mechanism includes a fixed plate fixedly connected to the telescopic end of the first electric telescopic rod. A second electric telescopic rod is fixedly connected to the lower surface of the fixed plate. A sliding cylinder is fixedly connected to the telescopic end of the second electric telescopic rod. An adjusting frame is hinged to the outer surface of the sliding cylinder. An expansion plate is hinged to the other end of the adjusting frame.

[0008] Preferably, the inner wall of the fixed plate is provided with a first sliding groove, the inside of the first sliding groove is slidably connected to the upper end of the expansion plate, and the outer surface of the second electric telescopic rod is slidably connected to the inside of the sliding cylinder. When the expansion plate is being adjusted, the first sliding groove can guide the expansion plate to prevent the expansion plate from tilting during expansion.

[0009] Preferably, the inner side of the mounting frame is provided with a second sliding groove, and the interior of the second sliding groove is slidably connected to one end of the lifting plate. The second sliding groove provided on the inner side of the mounting frame can guide the lifting plate and prevent the lifting plate from tilting during lifting.

[0010] Preferably, a guide rod is fixedly connected to the lower surface of the lifting plate, and a spring is sleeved on the outer surface of the guide rod. The upper end of the spring is fixedly connected to the lower surface of the lifting plate. When the lifting plate is pressed down, the guide rod can guide the upper injection block to prevent the injection block from tilting when it is pressed down.

[0011] Preferably, a conveying pipe is fixedly connected inside the upper injection block. The outer surface of the conveying pipe is fixedly connected to the inner wall of the lifting plate and the inner wall of the mounting frame. The conveying pipe passes through the mounting frame and the lifting plate. The injection molding material is conveyed into the upper injection block through the conveying pipe, which facilitates the injection molding of the packaging barrel. The conveying pipe is telescopic and can be extended and retracted according to the lifting plate.

[0012] Preferably, a fixing plate is fixedly connected to the upper surface of the base, and a fourth electric telescopic rod is fixedly connected to one side of the fixing plate. The telescopic end of the fourth electric telescopic rod is fixedly connected to the outer surface of the injection molding block. The fixing plate can fix the fourth electric telescopic rod, which facilitates the movement of the injection molding block and prevents shaking during telescopic movement.

[0013] Preferably, the inner wall of the lower injection block is provided with a slot, and the inside of the slot is inserted into the outer surface of the guide rod. When the upper injection block and the lower injection block are attached, the guide rod can guide the upper injection block.

[0014] Preferably, the outer surface of the injection molding block is hinged with a roller, and the outer surface of the roller is slidably connected with a slide rail. The lower surface of the slide rail is fixedly connected to the upper surface of the base. After injection molding is completed, the injection molding block can be moved by the action of the fourth electric telescopic rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The injection molding device of this application uses a fixed plate, a sliding cylinder, a second electric telescopic rod, an adjusting frame, an expansion plate, and a first slide groove in combination. The second electric telescopic rod drives the sliding cylinder to move longitudinally, which causes the hinged adjusting frame to change angle, forcing the expansion plate to expand radially outward along the first slide groove. This mechanical linkage design can accurately convert the shrinkage force into a uniform expansion force, so that the inner wall of the packaging barrel is completely separated from the mold, avoiding deformation or scratches caused by manual prying. It is especially suitable for demolding barrels with complex pressure-resistant structures, and realizes the smooth removal of the packaging barrel.

[0017] 2. The injection molding device of this application uses the third electric telescopic rod, the second slide, the lifting plate, the upper injection block, the conveying pipe, the guide rod, the spring and the lower injection block in cooperation. The third electric telescopic rod drives the lifting plate to move vertically along the second slide, forming a rigid guiding constraint to ensure the axial error when the upper injection block and the lower injection block are closed. At the moment the guide rod is inserted into the slot of the lower injection block, the spring absorbs the impact kinetic energy through pre-compression deformation, eliminating the risk of mold micro-cracks caused by rigid collision, and can prevent misalignment of the injection mold during fitting. Attached Figure Description

[0018] Figure 1 is a frontal view of the overall three-dimensional structure of this utility model;

[0019] Figure 2 is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0020] Figure 3 is a three-dimensional structural diagram of the base of this utility model;

[0021] Figure 4 is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0022] Figure 5 is a three-dimensional structural diagram of the demolding mechanism of this utility model.

[0023] Figure 6 is an enlarged structural schematic diagram of point A in Figure 1 of this utility model;

[0024] Figure 7 is an enlarged structural schematic diagram of section B in Figure 3 of this utility model.

[0025] The diagram shows: 1. Base; 2. Mounting bracket; 3. First electric telescopic rod;

[0026] 4. Demolding mechanism; 401. Fixed plate; 402. Sliding cylinder; 403. Second electric telescopic rod; 404. Adjusting frame; 405. Expansion plate; 406. First slide groove;

[0027] 5. Third electric telescopic rod; 6. Second slide rail; 7. Lifting plate; 8. Upper injection block; 9. Conveying pipe; 10. Guide rod; 11. Spring; 12. Lower injection block; 13. Slot; 14. Slide rail; 15. Fourth electric telescopic rod; 16. Fixing plate; 17. Roller. 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] As shown in Figure 3, this utility model provides a technical solution for a pressure-resistant packaging barrel injection mold, including a base 1 and a mounting bracket 2 fixed on the base 1. A fixing plate 16 is fixedly connected to the upper surface of the base 1, and a fourth electric telescopic rod 15 is fixedly connected to one side of the fixing plate 16. The telescopic end of the fourth electric telescopic rod 15 is fixedly connected to the outer surface of the lower injection block 12. The fixing plate 16 is installed on the base 1, and the fourth electric telescopic rod 15 can be fixed by the fixing plate 16 to prevent the fourth electric telescopic rod 15 from shaking during telescopic movement, thus playing a fixing role. The telescopic end of the fourth electric telescopic rod 15 is fixed on the lower injection block 12, and the lower injection block 12 can be moved by the fourth electric telescopic rod 15 to facilitate demolding of the packaging barrel inside the lower injection block 12.

[0030] As shown in Figures 1, 2, and 7, a roller 17 is hinged to the outer surface of the injection molding block 12. A slide rail 14 is slidably connected to the outer surface of the roller 17. The lower surface of the slide rail 14 is fixedly connected to the upper surface of the base 1. The roller 17 is mounted on the injection molding block 12. When the injection molding block 12 moves, the roller 17 can guide the injection molding block 12 to prevent it from tilting during movement. The slide rail 14 is mounted on the base 1, and the roller 17 can slide inside the slide rail 14. A slot 1 is provided on the inner wall of the injection molding block 12. 3. The inside of the slot 13 is inserted into the outer surface of the guide rod 10. The slot 13 is provided on the lower injection block 12. When the lower injection block 12 and the upper injection block 8 are in contact, the guide rod 10 can be inserted into the slot 13 to prevent the lower injection block 12 from shifting and to play a guiding role. The inner side of the mounting bracket 2 is provided with a second sliding groove 6. The inside of the second sliding groove 6 is slidably connected to one end of the lifting plate 7. The second sliding groove 6 provided on the mounting bracket 2 can guide the lifting plate 7 and prevent the lifting plate 7 from tilting when sliding up and down, thus playing a guiding role.

[0031] As shown in Figure 4, a third electric telescopic rod 5 is fixedly connected to the lower surface of the mounting bracket 2. A lifting plate 7 is fixedly connected to the telescopic end of the third electric telescopic rod 5. A guide rod 10 is fixedly connected to the lower surface of the lifting plate 7. A spring 11 is sleeved on the outer surface of the guide rod 10. The upper end of the spring 11 is fixedly connected to the lower surface of the lifting plate 7. The guide rod 10 is installed on the lifting plate 7 to fix it. The spring 11 is installed on the guide rod 10. When the guide rod 10 is inserted into the slot 13, the spring 11 can play a buffering role to prevent damage when the lower injection block 12 and the upper injection block 8 are attached.

[0032] The lower surface of the lifting plate 7 is fixedly connected to the upper injection block 8. The inside of the upper injection block 8 is fixedly connected to the conveying pipe 9. The outer surface of the conveying pipe 9 is fixedly connected to the inner wall of the lifting plate 7 and the inner wall of the mounting frame 2. The conveying pipe 9 passes through the mounting frame 2 and the lifting plate 7. The conveying pipe 9 is installed in the upper injection block 8, the lifting plate 7 and the mounting frame 2. The injection molding material can be conveyed into the upper injection block 8 through the conveying pipe 9, which facilitates the injection molding of the packaging barrel.

[0033] As shown in Figures 5 and 6, a first electric telescopic rod 3 is fixedly connected to one side of the mounting frame 2. A demolding mechanism 4 is provided at the telescopic end of the first electric telescopic rod 3. The demolding mechanism 4 includes a fixed plate 401 fixedly connected to the telescopic end of the first electric telescopic rod 3. A first sliding groove 406 is provided on the inner wall of the fixed plate 401. The interior of the first sliding groove 406 is slidably connected to the upper end of the expansion plate 405. The outer surface of the second electric telescopic rod 403 is slidably connected to the interior of the sliding cylinder 402. The first sliding groove 406 is provided on the fixed plate 401. When the expansion plate 405 is expanding, the first sliding groove 406 can guide the expansion plate 405 to prevent the expansion plate 405 from tilting during expansion, thus playing a guiding role. Under the action of the second electric telescopic rod 403, the sliding cylinder 402 can slide on the outer surface of the sliding cylinder 402.

[0034] A second electric telescopic rod 403 is fixedly connected to the lower surface of the fixed plate 401. A sliding cylinder 402 is fixedly connected to the telescopic end of the second electric telescopic rod 403. An adjusting frame 404 is hinged to the outer surface of the sliding cylinder 402. An expansion plate 405 is hinged to the other end of the adjusting frame 404. When the packaging barrel needs to be injection molded, the lifting plate 7 can be pushed by the third electric telescopic rod 5 to drive the upper injection block 8 to descend, so that the upper injection block 8 and the lower injection block 12 can fit together, which is convenient for the packaging barrel to be injection molded. When the packaging barrel needs to be demolded after the injection is completed, the packaging barrel inside the lower injection block 12 can be demolded by the demolding mechanism 4. The second electric telescopic rod 403 is pushed by the sliding cylinder 402 to slide, which can drive the adjusting frame 404 and the expansion plate 405 to unfold, which is convenient for the demolding of the injection molded packaging barrel.

[0035] The first electric telescopic pole 3, the second electric telescopic pole 403, the third electric telescopic pole 5, and the fourth electric telescopic pole 15 in this application are all common electrical devices in the prior art, and their models or specific structures will not be described in detail in this application.

[0036] Working principle: The third electric telescopic rod 5 is activated, pushing the lifting plate 7 to move vertically downward along the second slide groove 6 of the mounting frame 2, causing the upper injection block 8 and the lower injection block 12 to close precisely. When the upper injection block 8 and the lower injection block 12 are in contact, the guide rod 10 is inserted into the slot 13 of the lower injection block 12 to achieve axial positioning and ensure closing accuracy. The spring 11 is compressed at the moment of closing to absorb impact energy and avoid rigid collision damage to the mold. The lower injection block 12 moves to the closed position along the slide rail 14 via the fourth electric telescopic rod 15. The roller 17 cooperates with the slide rail 14 to ensure smooth movement. Molten plastic is injected into the sealed cavity formed by the upper injection block 8 and the lower injection block 12 through the conveying pipe 9. After cooling and solidification, it forms a pressure-resistant packaging barrel. The third electric telescopic rod 5 retracts, causing the upper injection block 8 to move upward and detach from the formed packaging barrel. The fourth electric telescopic rod... 15. Drive the injection molding block 12 to move outward along the slide rail 14, transferring the mold with the packaging barrel to the demolding station. The first electric telescopic rod 3 pushes the demolding mechanism 4 into the packaging barrel. The fixed plate 401 is positioned at the barrel opening. The second electric telescopic rod 403 is activated, driving the sliding cylinder 402 to move longitudinally along the fixed plate 401, causing the hinged adjusting frame 404 to change angle. The adjusting frame 404 forces the expansion plate 405 to expand radially outward along the first slide groove 406, evenly pressing against the inner wall of the packaging barrel, eliminating shrinkage stress, and completely separating the barrel from the injection molding block 12. After demolding, the expansion plate 405 is reset, the first electric telescopic rod 3 is retracted, the packaging barrel is removed from the mold, and the injection molding block 12 is moved out through the roller 17 and slide rail 14. The operator can safely remove the finished product without manual prying, avoiding deformation or surface damage, and realizing the ability to remove the packaging barrel.

[0037] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pressure-resistant packaging barrel injection mold, comprising a base (1) and a mounting bracket (2) fixed on the base (1), characterized in that: A third electric telescopic rod (5) is fixedly connected to the lower surface of the mounting frame (2). A lifting plate (7) is fixedly connected to the telescopic end of the third electric telescopic rod (5). An upper injection block (8) is fixedly connected to the lower surface of the lifting plate (7). A first electric telescopic rod (3) is fixedly connected to one side of the mounting frame (2). A demolding mechanism (4) is provided at the telescopic end of the first electric telescopic rod (3). The demolding mechanism (4) includes a fixed plate (401) fixedly connected to the telescopic end of the first electric telescopic rod (3). A second electric telescopic rod (403) is fixedly connected to the lower surface of the fixed plate (401). A sliding cylinder (402) is fixedly connected to the telescopic end of the second electric telescopic rod (403). An adjusting frame (404) is hinged to the outer surface of the sliding cylinder (402). An expansion plate (405) is hinged to the other end of the adjusting frame (404).

2. The injection mold for a pressure-resistant packaging barrel according to claim 1, characterized in that: The inner wall of the fixed plate (401) is provided with a first sliding groove (406), the interior of the first sliding groove (406) is slidably connected to the upper end of the expansion plate (405), and the outer surface of the second electric telescopic rod (403) is slidably connected to the interior of the sliding cylinder (402).

3. The injection mold for a pressure-resistant packaging barrel according to claim 1, characterized in that: The mounting bracket (2) has a second sliding groove (6) on its inner side, and the interior of the second sliding groove (6) is slidably connected to one end of the lifting plate (7).

4. The injection mold for a pressure-resistant packaging barrel according to claim 3, characterized in that: A guide rod (10) is fixedly connected to the lower surface of the lifting plate (7), and a spring (11) is sleeved on the outer surface of the guide rod (10). The upper end of the spring (11) is fixedly connected to the lower surface of the lifting plate (7).

5. The injection mold for a pressure-resistant packaging barrel according to claim 4, characterized in that: The upper injection block (8) is internally fixedly connected to a conveying pipe (9). The outer surface of the conveying pipe (9) is fixedly connected to the inner wall of the lifting plate (7). The outer surface of the conveying pipe (9) is fixedly connected to the inner wall of the mounting frame (2). The conveying pipe (9) passes through the mounting frame (2) and the lifting plate (7).

6. The injection mold for a pressure-resistant packaging barrel according to claim 1, characterized in that: A fixing plate (16) is fixedly connected to the upper surface of the base (1), and a fourth electric telescopic rod (15) is fixedly connected to one side of the fixing plate (16). The telescopic end of the fourth electric telescopic rod (15) is fixedly connected to the outer surface of the injection molding block (12).

7. The injection mold for a pressure-resistant packaging barrel according to claim 6, characterized in that: The inner wall of the injection block (12) is provided with a slot (13), and the inside of the slot (13) is inserted into the outer surface of the guide rod (10).

8. The injection mold for a pressure-resistant packaging barrel according to claim 7, characterized in that: The outer surface of the injection molding block (12) is hinged with a roller (17), and the outer surface of the roller (17) is slidably connected with a slide rail (14). The lower surface of the slide rail (14) is fixedly connected to the upper surface of the base (1).

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