Injection mold convenient and rapid to demold
By introducing demolding and collection devices into injection molds, the problems of long demolding time and damage in traditional molds have been solved, enabling rapid demolding and automatic product collection, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JINGSHENG PRECISION PLASTIC MOULD TECH CO LTD
- Filing Date
- 2025-05-01
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional injection molds suffer from problems such as excessively long demolding time, difficulty in demolding, and potential mold damage, leading to low production efficiency and compromised product quality.
An injection mold including a demolding device and a collection device was designed. The demolding device achieves rapid demolding through the cooperation of a hydraulic device, a slide bar, a spring and a demolding plate. The collection device achieves automatic product collection through a U-shaped plate, a torsion spring and a collection bin.
It enables rapid demolding, reduces demolding time, lowers the risk of product damage, and improves production efficiency and product quality.
Smart Images
Figure CN224183571U_ABST
Abstract
Description
An injection mold that allows for convenient and quick demolding. Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold that is convenient and quick to demold. Background Technology
[0002] Injection molds are tools used to mold plastic products. Demolding is a critical step in the production of plastic products. Traditional injection molds often have problems such as difficulty in demolding and long demolding time. This not only reduces production efficiency, but may also damage plastic products and affect product quality.
[0003] For example, after injection molding, some molds cause plastic products to adhere tightly to the surface of the mold cavity, requiring manual demolding with the help of tools. This process is cumbersome and can easily scratch the surface of the plastic products. In addition, some molds have unreasonable demolding structures that cannot quickly and effectively separate the plastic products from the mold, resulting in extended production cycles and increased production costs.
[0004] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: traditional injection molds usually have excessively long demolding times, or the mold is not easy to demold immediately after injection molding, and the mold may be damaged during demolding. This results in a lot of time being wasted by workers on demolding, greatly reducing the workers' production efficiency and potentially causing damage to plastic products, affecting product quality. Therefore, to address the above problems, an injection mold that facilitates quick demolding is proposed. Summary of the Invention
[0005] The purpose of this invention is to address the shortcomings of existing injection molds, such as excessively long demolding times, difficulty in demolding freshly injected molds, and potential mold damage during demolding. These issues result in significant time wasted by workers, reduced productivity, and potential damage to plastic products, affecting product quality. The invention proposes a convenient and quick demolding injection mold.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an injection mold for convenient and rapid demolding, comprising a hollow frame, a hydraulic device fixedly connected to the surface of the hollow frame, an upper mold base fixedly connected to the surface of the hydraulic device, a lower mold base fixedly connected to the surface of the hollow frame, a demolding device provided on the surface of the lower mold base, the demolding device comprising a fixed chamber, the fixed chamber being fixedly connected to the surface of the lower mold base, a sliding rod slidably inserted into the surface of the fixed chamber, a semi-circular block fixedly connected to one end of the sliding rod, a fixed plate fixedly connected to the other end of the sliding rod, two sliding holes opened on the surface of the lower mold base, a fixed rod slidably connected to the inner wall of the sliding holes, and one end of the fixed rod being fixedly connected to the fixed plate.
[0007] The effect achieved by the above-mentioned components is as follows: by setting up a demolding device, a rapid demolding effect can be achieved. When workers are working, traditional injection molds usually have excessively long demolding time, or the mold is not easy to demold immediately after injection molding. The mold may also be damaged during demolding, resulting in a lot of time wasted by workers on demolding, which greatly reduces the workers' production efficiency and may cause damage to plastic products, affecting product quality. This improves the usability of the device.
[0008] Preferably, the arc surface of the slide rod is fitted with a spring, and the two ends of the spring are fixedly connected to the inner surface of the fixed chamber and the surface of the fixed plate, respectively.
[0009] The effect achieved by the above components is as follows: by cooperating with the spring fixing plate and the slide bar, pressing the semicircular block moves the slide bar, which in turn moves the fixing plate. At this time, the spring is in a stretched state. Due to the elasticity of the spring itself, when the worker releases the semicircular block, the spring automatically moves the slide bar and the fixing plate back to their original positions.
[0010] Preferably, the inner surface of the lower mold base is provided with a demolding groove, and a demolding template is slidably connected to the inner wall of the demolding groove. The demolding template is fixedly connected to one end of the fixing rod.
[0011] The effect achieved by the above components is that, through the cooperation of the demolding groove, the demolding template, and the fixing rod, damage to the surface of the product during the demolding process can be reduced.
[0012] Preferably, an elliptical ring is fixedly connected to the surface of the lower mold base, and a round rod is fixedly connected to the surface of the upper mold base, the round rod sliding on the inner surface of the elliptical ring.
[0013] The effect achieved by the above components is that, through the cooperation of the round rod, elliptical ring and upper mold base, misalignment between the upper and lower mold bases can be prevented during the molding process.
[0014] Preferably, the surface of the hollow frame is provided with a collection device, the collection device including a U-shaped plate, the U-shaped plate being fixedly connected to the surface of the hollow frame, the surface of the U-shaped plate having a fixing groove, the inner wall of the fixing groove of the U-shaped plate being slidably connected to a collection bin, the surface of the U-shaped plate being fixedly connected to a short rod, one end of the short rod being fixedly connected to an elliptical block, the arc surface of the short rod being rotatably connected to a movable plate, the surface of the movable plate having a movable hole, the inner wall of the movable hole of the movable plate being slidably connected to a shaped rod, the shaped rod being fixedly connected to the surface of the U-shaped plate.
[0015] The effect achieved by the above components is as follows: by setting up a collection device, the products can be collected. During operation, the staff does not need to pick up the products one by one. After the products are pressed, they will automatically fall into the collection bin. The staff can change the collection bin as needed, which improves the staff's production efficiency and reduces a lot of time spent on mold removal.
[0016] Preferably, the arc surface of the short rod is fitted with a torsion spring, and the two ends of the torsion spring are fixedly connected to the moving plate and the elliptical block, respectively.
[0017] The effect achieved by the above components is that, through the cooperation of the torsion spring moving plate and the elliptical block, when the moving plate is opened, due to the torsion of the torsion spring itself, when the moving plate is released, the torsion spring will automatically drive the moving plate back to its original position.
[0018] Preferably, two L-shaped plates are fixedly connected to the surface of the U-shaped plate, and the size of the L-shaped plates is adapted to the size of the collection bin.
[0019] The effect achieved by the above components is that, through the cooperation of the L-shaped plate and the collection bin, the U-shaped plate fixing slot can be quickly positioned, making it convenient for staff to quickly change the collection bin.
[0020] In summary, the beneficial effects of this utility model are as follows:
[0021] 1. In this utility model, by setting a demolding device, a rapid demolding effect can be achieved. When workers are working, traditional injection molds usually have excessively long demolding times, or the mold is not easy to demold immediately after injection molding, and the mold may be damaged during demolding. This results in a lot of time being wasted on demolding, which greatly reduces the workers' production efficiency and may cause damage to plastic products, affecting product quality. This invention improves the usability of the device.
[0022] 2. In this utility model, by setting up a collection device, the product can be collected. During work, the staff does not need to pick up the products one by one. After the products are pressed, they will automatically fall into the collection bin. The staff can change the collection bin as needed, which improves the staff's production efficiency and reduces a lot of time spent on mold removal. Attached Figure Description
[0023] Figure 1 is a three-dimensional structural diagram of this utility model;
[0024] Figure 2 is a schematic diagram of the demolding device of the present invention;
[0025] Figure 3 is a cross-sectional view of the lower mold base in this utility model;
[0026] Figure 4 is a schematic diagram of the collection device of the present invention;
[0027] Figure 5 is an enlarged view of section A in Figure 4 of this utility model.
[0028] Legend: 1. Hollow frame; 2. Hydraulic unit; 3. Lower mold base; 6. Upper mold base; 4. Demolding device; 401. Fixed chamber; 402. Sliding rod; 403. Semicircular block; 404. Fixed plate; 405. Sliding hole; 406. Fixed rod; 407. Spring; 408. Demolding groove; 409. Demolding template; 410. Elliptical ring; 411. Round rod; 5. Collection device; 51. U-shaped plate; 52. Collection chamber; 53. Short rod; 54. Elliptical block; 55. Moving plate; 56. Irregular rod; 57. Torsion spring; 58. L-shaped plate. Detailed Implementation
[0029] Referring to Figure 1, this utility model provides a technical solution: an injection mold for convenient and rapid demolding, including a hollow frame 1, a hydraulic device 2 fixedly connected to the surface of the hollow frame 1, an upper mold base 6 fixedly connected to the surface of the hydraulic device 2, a lower mold base 3 fixedly connected to the surface of the hollow frame 1, and a demolding device 4 provided on the surface of the lower mold base 3. By setting the demolding device 4, a rapid demolding effect can be achieved. When workers are working, traditional injection molds usually have excessively long demolding times, or the mold is not easy to demold immediately after injection molding, and the mold may be damaged during demolding, resulting in a lot of time wasted by workers on demolding, greatly reducing the workers' production efficiency and potentially causing damage to plastic products, affecting product quality, thus improving the usability of the device. The surface of the hollow frame 1 is equipped with a collection device 5. By setting the collection device 5, the product can be collected. During operation, the staff does not need to pick up the products one by one. After the products are pressed, they will automatically fall into the collection bin 52. The staff can replace the collection bin 52 as needed, which improves the staff's production efficiency and reduces a lot of time spent removing molds.
[0030] The following section will describe the specific setup and function of the demolding device 4 and the collection device 5.
[0031] Referring to Figures 2 and 3, in this embodiment: the demolding device 4 includes a fixed chamber 401, which is fixedly connected to the surface of the lower mold base 3. A slide rod 402 is slidably inserted into the surface of the fixed chamber 401. A semi-circular block 403 is fixedly connected to one end of the slide rod 402, and a fixed plate 404 is fixedly connected to the other end of the slide rod 402. Two sliding holes 405 are formed on the surface of the lower mold base 3. A fixed rod 406 is slidably connected to the inner wall of the sliding holes 405. One end of the fixed rod 406 is fixedly connected to the fixed plate 404. A spring 407 is sleeved on the arc surface of the slide rod 402. The two ends of the spring 407 are fixedly connected to the inner surface of the fixed chamber 401 and the surface of the fixed plate 404, respectively. A demolding groove 408 is formed on the inner surface of the lower mold base 3. A demolding template 409 is slidably connected to the inner wall of the demolding groove 408. The demolding template 409 is fixedly connected to one end of the fixed rod 406. An elliptical ring 410 is fixedly connected to the surface of the lower mold base 3, and a round rod 411 is fixedly connected to the surface of the upper mold base 6. The round rod 411 slides on the inner surface of the elliptical ring 410. Through the cooperation of the spring 407, the fixing plate 404, the fixing chamber 401, and the sliding rod 402, the semicircular block 403 is pressed, which drives the sliding rod 402 to move. The sliding rod 402 drives the fixing plate 404 to move. At this time, the spring 407 is in a stretched state. Due to the elasticity of the spring 407 itself, the operator releases the semicircular block 403, and the spring 407 automatically drives the sliding rod 402 and the fixing plate 404 back to their original positions. Through the cooperation of the demolding groove 408, the demolding template 409, and the fixing rod 406, the damage to the surface of the product during demolding can be reduced. Through the cooperation of the round rod 411, the elliptical ring 410, and the upper mold base 6, the misalignment of the upper mold base 6 and the lower mold base 3 during the molding process can be prevented.
[0032] Referring to Figures 4 and 5, specifically, the collecting device 5 includes a U-shaped plate 51, which is fixedly connected to the surface of the hollow frame 1. A fixing groove is provided on the surface of the U-shaped plate 51, and a collecting chamber 52 is slidably connected to the inner wall of the fixing groove of the U-shaped plate 51. A short rod 53 is fixedly connected to the surface of the U-shaped plate 51, and an elliptical block 54 is fixedly connected to one end of the short rod 53. A movable plate 55 is rotatably connected to the arc surface of the short rod 53. A movable hole is provided on the surface of the movable plate 55, and a shaped rod 56 is slidably connected to the inner wall of the movable hole of the movable plate 55. The shaped rod 56 is fixedly connected to the surface of the U-shaped plate 51. A torsion spring 57 is fitted onto the arc surface of the short rod 53. The two ends of the torsion spring 57 are fixedly connected to the movable plate 55 and the elliptical block 54, respectively. Two L-shaped plates 58 are fixedly connected to the surface of the U-shaped plate 51. The size of the L-shaped plates 58 is adapted to the size of the collection chamber 52. With the cooperation of the torsion spring 57, the movable plate 55, and the elliptical block 54, when the movable plate 55 is opened, the torsion spring 57 will automatically drive the movable plate 55 back to its original position due to its own torque. With the cooperation of the L-shaped plates 58 and the collection chamber 52, the U-shaped plate 51 can be quickly positioned in the fixing slot, which is convenient for the staff to quickly replace the collection chamber 52.
[0033] Working principle: When the operator needs to demold the product, the operator starts the machine to detach the upper mold base 6 from the lower mold base 3. The upper mold base 6 moves, driving the round rod 11. The round rod 11 slides on the inner surface of the elliptical ring 410. After it is fully opened, the operator presses the semicircular block 403. The semicircular block 403 drives the sliding rod 402. The sliding rod 402 slides inside the fixed chamber 401. The sliding rod 402 drives the fixed plate 404 to move. At this time, the spring 407 is in a stretched state. The fixed plate 404 drives the two fixed rods 406 to slide on the inner wall of the sliding hole 405. The fixed rods 406 drive the demolding template 409 on the inner wall of the demolding groove 408 to move. The demolding template 409 completely pushes out the product. The operator releases the semicircular block 403. Due to the elasticity of the spring 407, the fixed plate 404, fixed rods 406 and demolding template 409 automatically return to the origin.
[0034] When the staff needs to replace the collection chamber 52, the staff rotates the moving plate 55, the moving hole of the moving plate 55 disengages from the irregular rod 56, the staff takes out the collection chamber 52, the staff places the new collection chamber 52 on the surface of the L-shaped plate 58, the staff pushes the collection chamber 52 into the fixing groove of the U-shaped plate 51, the staff releases the moving plate 55, due to the torque of the torsion spring 57 itself, the moving hole of the moving plate 55 is driven to re-lock into the irregular rod 56, and the replacement is completed.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. Injection mold with facilitated and rapid demolding, comprising a hollow frame (1), characterized in that: A hydraulic device (2) is fixedly connected to the surface of the hollow frame (1). An upper mold base (6) is fixedly connected to the surface of the hydraulic device (2). A lower mold base (3) is fixedly connected to the surface of the hollow frame (1). A demolding device (4) is provided on the surface of the lower mold base (3). The demolding device (4) includes a fixed chamber (401). The fixed chamber (401) is fixedly connected to the surface of the lower mold base (3). A sliding rod (402) is slidably inserted into the surface of the fixed chamber (401). A semi-circular block (403) is fixedly connected to one end of the sliding rod (402). A fixed plate (404) is fixedly connected to the other end of the sliding rod (402). Two sliding holes (405) are opened on the surface of the lower mold base (3). A fixed rod (406) is slidably connected to the inner wall of the sliding hole (405). One end of the fixed rod (406) is fixedly connected to the fixed plate (404).
2. The injection mold for convenient and quick demolding according to claim 1, characterized in that: The arc surface of the slide bar (402) is fitted with a spring (407), and the two ends of the spring (407) are fixedly connected to the inner surface of the fixed chamber (401) and the surface of the fixed plate (404), respectively.
3. The injection mold of claim 1, wherein: The inner surface of the lower mold base (3) is provided with a demolding groove (408), and a demolding template (409) is slidably connected to the inner wall of the demolding groove (408). The demolding template (409) is fixedly connected to one end of the fixing rod (406).
4. The injection mold for convenient and quick demolding according to claim 1, characterized in that: An elliptical ring (410) is fixedly connected to the surface of the lower mold base (3), and a round rod (411) is fixedly connected to the surface of the upper mold base (6). The round rod (411) slides on the inner surface of the elliptical ring (410).
5. The injection mold for convenient and quick demolding according to claim 1, characterized in that: The hollow frame (1) is provided with a collection device (5). The collection device (5) includes a U-shaped plate (51). The U-shaped plate (51) is fixedly connected to the surface of the hollow frame (1). The surface of the U-shaped plate (51) is provided with a fixing groove. The inner wall of the fixing groove of the U-shaped plate (51) is slidably connected to a collection bin (52). The surface of the U-shaped plate (51) is fixedly connected with a short rod (53). One end of the short rod (53) is fixedly connected to an elliptical block (54). The arc surface of the short rod (53) is rotatably connected to a moving plate (55). The surface of the moving plate (55) is provided with a moving hole. The inner wall of the moving hole of the moving plate (55) is slidably connected to a shaped rod (56). The shaped rod (56) is fixedly connected to the surface of the U-shaped plate (51).
6. The injection mold for convenient and quick demolding according to claim 5, characterized in that: The short rod (53) has a torsion spring (57) fitted on its arc surface. The two ends of the torsion spring (57) are fixedly connected to the moving plate (55) and the elliptical block (54), respectively.
7. The injection mold for convenient and quick demolding according to claim 5, characterized in that: Two L-shaped plates (58) are fixedly connected to the surface of the U-shaped plate (51), and the size of the L-shaped plates (58) is adapted to the size of the collection bin (52).