Plastic mold capable of preventing impurities from falling into mold

Abstract

The utility model discloses a plastic mold capable of preventing impurities from falling into, which belongs to the technical field of plastic molds and comprises a base, a worktable fixedly mounted at the top of the base, a lower mold and four groups of fixing rods fixedly mounted at the top of the worktable, fixing plates fixedly mounted at the tops of two groups of fixing rods positioned on the same side, and an upper mold fixedly mounted at the top of the lower mold. Cylinders are fixedly mounted at the tops of the two groups of fixing plates, so that an operator is prevented from manually taking out a product from a mold, the possibility of being scalded, scratched and the like by the mold is avoided, the operator can operate outside a safer distance, the occurrence probability of industrial accidents is reduced, the influence of impurities on the appearance and quality of the product can be effectively avoided, and the production efficiency is improved. The plastic product with smooth surface and uniform texture is produced, so that the stability and reliability of the performance of the plastic product are ensured, and the buffer spring can control the downward pressing speed of the upper mold to a certain extent, so that the upper mold can be assembled with the lower mold more stably.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and in particular to a plastic mold that prevents impurities from falling in. Background Art

[0002] With the rapid development of the plastics industry and the continuous improvement in the strength and other properties of general-purpose and engineering plastics, the application range of plastic products is constantly expanding, and the consumption of plastic products is also increasing. Plastic molds, used in conjunction with plastic molding machines in the plastics processing industry, are tools that give plastic products a complete shape and precise dimensions. Due to the wide variety of plastic types and processing methods, and the varying complexity of plastic molding machines and plastic products, the types and structures of plastic molds are also diverse. Although the structure of molds can vary greatly depending on the type and properties of the plastic, the shape and structure of the plastic product, and the type of injection molding machine, the basic structure remains the same. Molds mainly consist of a gating system... The mold consists of a gating system, a temperature control system, molding parts, and structural parts. Among these, the gating system and molding parts are the parts that directly contact the plastic and vary depending on the plastic and the finished product. They are the most complex and variable parts of the mold, requiring the highest level of surface finish and precision. During demolding, impurities can fall into the mold surface. These impurities mix with the plastic, reducing the surface finish and precision of the product and affecting the quality of the finished plastic. Furthermore, in existing technologies, most material handling is done manually, which cannot achieve automatic material handling. The high temperature and sharp surface of the finished product immediately after injection molding may cause burns or cuts to workers. Therefore, we propose a plastic mold that prevents impurities from falling in to solve this problem. Utility Model Content

[0003] The purpose of this invention is to provide a plastic mold that prevents impurities from falling in, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A plastic mold for preventing impurities from falling in includes: a base; a workbench fixedly mounted on the top of the base; a lower mold and four sets of fixing rods fixedly mounted on the top of the workbench; fixing plates fixedly mounted on the tops of two sets of fixing rods on the same side; cylinders fixedly mounted on the tops of the two sets of fixing plates; a set of connecting plates fixedly mounted on the output ends of the two sets of cylinders; an upper mold fixedly mounted on the bottom of the connecting plates, the upper mold being compatible with the lower mold; two sets of connecting rods fixedly mounted on the bottom of the connecting plates; a set of sliding plates fixedly mounted on the bottom ends of the two sets of connecting rods; two sets of push rods fixedly mounted on the top of the sliding plates; the two sets of push rods penetrating into the interior of the lower mold; and two sets of limiting rods slidably mounted inside the sliding plates, the two ends of the two sets of limiting rods being fixedly connected to the top inner walls of the base and the workbench, respectively.

[0006] Preferably, a dust suction port is provided inside one side of the lower mold, and a dust suction component is provided on one side of the dust suction port. The dust suction component includes: a collection box, which is fixedly connected to the lower mold. A filter screen is slidably installed inside the lower mold. An air inlet is provided on one side of the collection box, and an exhaust fan is provided on one side of the air inlet. An exhaust pipe is fixedly installed on one side of the exhaust fan.

[0007] Preferably, both sets of connecting rods are slidably installed inside the worktable, both sets of top rods are slidably connected to the lower mold and the worktable, and both sets of limiting rods are fitted with a spring on their outer sides, with the two ends of the springs being fixedly connected to the slide plate and the base, respectively.

[0008] Preferably, the connecting plate is slidably sleeved on the outside of the four sets of fixed rods, and a buffer spring is sleeved on the outside of each of the four sets of fixed rods. The two ends of the four sets of buffer springs are respectively fixedly connected to the connecting plate and the worktable.

[0009] Preferably, a baffle is fixedly installed on one side of the upper mold, and the baffle is adapted to the dust suction port.

[0010] Preferably, both the connecting plate and the upper mold have pouring ports inside, and a rotating door is rotatably installed on one side of the collection box.

[0011] In this invention, a plastic mold designed to prevent impurities from falling in is provided with connecting rods, limiting rods, ejector rods, springs, and a sliding plate. Two sets of connecting rods at the bottom of the connecting plate move the sliding plate downwards, causing the sliding plate to move two sets of ejector rods at the top downwards while simultaneously squeezing the two sets of springs at the bottom. This causes the top of the ejector rods to fit against the inner wall of the lower mold. At this point, injection liquid is poured into the sprue of the connecting plate and the upper mold. After molding, two sets of cylinders are driven to contract, and under the reset action of the springs, the two sets of ejector rods push the molded material out of the lower mold. This design avoids the need for operators to manually remove the product from the mold, thus preventing potential burns or scratches. It allows operators to work from a safer distance, reducing the probability of workplace accidents and ensuring operator safety. Compared to traditional manual material handling or complex mechanical ejection methods, this design significantly shortens material handling time.

[0012] In this invention, a plastic mold designed to prevent impurities from falling in is equipped with a buffer spring, a dust collection assembly, and a dust suction port. The suction port draws any dust and impurities that may be present inside the lower mold into a collection box. A filter screen then filters these impurities and dust, preventing the exhaust fan from releasing air containing them. The internal filter screen can be cleaned or replaced by opening the rotating door. Simultaneously, two sets of cylinders drive the bottom connecting plate and the upper mold, causing them to slide on four fixed rods while compressing the buffer spring. The dust collection assembly effectively... To avoid the impact of impurities on product appearance and quality, and to produce plastic products with smooth surfaces and uniform texture, the system ensures the stability and reliability of plastic product performance, meeting the production demands of high-precision, high-performance products. Operators can easily open the collection box to clean or replace the internal filter, enabling quick filter maintenance and ensuring the continuous and effective operation of the dust collection and filtration system. The filter effectively intercepts dust and impurities, resulting in cleaner exhaust air that meets environmental protection requirements. The buffer spring controls the downward pressing speed of the upper mold to a certain extent, allowing for a smoother mold closing with the lower mold. The elastic resistance of the spring slows down the movement speed of the upper mold, gradually decelerating it as it approaches the lower mold, thus achieving a more stable mold closing process. This helps improve the molding quality of plastic products and reduce the scrap rate. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a plastic mold proposed in this utility model to prevent impurities from falling in.

[0014] Figure 2 This is a cross-sectional structural diagram of a plastic mold proposed in this utility model to prevent impurities from falling in.

[0015] Figure 3 This is a cross-sectional view of a plastic mold proposed in this utility model to prevent impurities from falling in.

[0016] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0017] Figure 5 This is a partial disassembled structural diagram of a plastic mold proposed in this utility model to prevent impurities from falling in.

[0018] In the diagram: 1. Workbench; 2. Lower mold; 3. Baffle; 4. Upper mold; 5. Connecting plate; 6. Fixing plate; 7. Cylinder; 8. Dust collection assembly; 801. Collection box; 802. Filter screen; 803. Exhaust fan; 804. Exhaust pipe; 9. Fixing rod; 10. Buffer spring; 11. Connecting rod; 12. Slide plate; 13. Top rod; 14. Limiting rod; 15. Spring 1; 16. Dust suction port; 17. Rotating door. DETAILED DESCRIPTION

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-5 A plastic mold for preventing impurities from falling in includes: a base, a workbench 1 fixedly mounted on the top of the base, a lower mold 2 and four sets of fixing rods 9 fixedly mounted on the top of the workbench 1, fixing plates 6 fixedly mounted on the top of two sets of fixing rods 9 on the same side, cylinders 7 fixedly mounted on the top of two sets of fixing plates 6, the same set of connecting plates 5 fixedly mounted on the output ends of the two sets of cylinders 7, an upper mold 4 fixedly mounted on the bottom of the connecting plate 5, the upper mold 4 being adapted to the lower mold 2, two sets of connecting rods 11 fixedly mounted on the bottom of the connecting plate 5, the same set of sliding plates 12 fixedly mounted on the bottom ends of the two sets of connecting rods 11, two sets of push rods 13 fixedly mounted on the top of the sliding plates 12, the two sets of push rods 13 penetrating into the interior of the lower mold 2, two sets of limiting rods 14 slidably mounted inside the sliding plates 12, the two ends of the two sets of limiting rods 14 being fixedly connected to the top inner walls of the base and the workbench 1, respectively.

[0021] In this embodiment, a dust suction port 16 is provided inside one side of the lower mold 2, and a dust suction assembly 8 is provided on one side of the dust suction port 16. The dust suction assembly 8 includes a collection box 801, which is fixedly connected to the lower mold 2. A filter screen 802 is slidably installed inside the lower mold 2. An air inlet is provided on one side of the collection box 801, and an exhaust fan 803 is provided on one side of the air inlet. An exhaust pipe 804 is fixedly installed on one side of the exhaust fan 803 to facilitate the suction of dust and impurities inside the lower mold 2 into the collection box 801. Two sets of connecting rods 11 are slidably installed inside the worktable 1. Two sets of top rods 13 are slidably connected to the lower mold 2 and the worktable 1. Springs 15 are sleeved on the outer side of two sets of limiting rods 14. The two ends of the two sets of springs 15 are fixedly connected to the slide plate 12 and the base, respectively. The springs 15 facilitate the slide plate 12 to drive the two sets of top rods 13 to reset, which is convenient for the product formed inside the lower mold 2.

[0022] In this embodiment, the connecting plate 5 is slidably sleeved on the outside of the four sets of fixing rods 9. Each of the four sets of fixing rods 9 is sleeved with a buffer spring 10. The two ends of the four sets of buffer springs 10 are fixedly connected to the connecting plate 5 and the worktable 1, respectively, to facilitate the buffering of the upper mold 4 pressing down. A baffle 3 is fixedly installed on one side of the upper mold 4. The baffle 3 is adapted to the dust suction port 16 to prevent the injection liquid from entering the inside of the collection box 801 during injection. The connecting plate 5 and the upper mold 4 are both provided with pouring ports. A rotating door 17 is rotatably installed on one side of the collection box 801 to facilitate pouring and cleaning or replacing the filter screen 802, and to facilitate the unified treatment of dust and impurities inside the collection box 801.

[0023] In this embodiment, during use, by driving the exhaust fan 803, dust and impurities that may be present inside the lower mold 2 can be sucked into the collection box 801 through the dust suction port 16. The filter screen 802 filters the impurities and dust, preventing the exhaust fan 803 from releasing air containing impurities and dust into the air. By opening the rotating door 17, the internal filter screen 802 can be cleaned or replaced, and the internal dust can be uniformly treated. At this time, by driving the two sets of cylinders 7, the two sets of cylinders 7 cause the bottom connecting plate 5 and the upper mold 4 to slide on the four sets of fixed rods 9, simultaneously compressing the buffer spring 10. The upper mold 4 enters the lower mold 2, causing the baffle 3 to block the dust suction port 16. This causes the two sets of connecting rods 11 at the bottom of the connecting plate 5 to move the slide plate 12 downward. The slide plate 12 then moves the two sets of ejector rods 13 at the top downward while simultaneously squeezing the two sets of springs 15 at the bottom. This causes the top of the ejector rods 13 to fit against the bottom inner wall of the lower mold 2. At this time, injection liquid is poured into the sprue opened by the connecting plate 5 and the upper mold 4. After molding, the two sets of cylinders 7 are driven to contract. Under the reset action of the springs 15, the two sets of ejector rods 13 push out the injection-molded material inside the lower mold 2, making it easy to remove the material.

[0024] The above provides a detailed description of a plastic mold for preventing impurities from falling in, as provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A plastic mold to prevent impurities from falling in, characterized in that, include: A base, on the top of which a workbench (1) is fixedly installed, and on the top of the workbench (1) a lower mold (2) and four sets of fixing rods (9) are fixedly installed. Fixing plates (6) are fixedly installed on the tops of the two sets of fixing rods (9) located on the same side. Cylinders (7) are fixedly installed on the tops of the two sets of fixing plates (6). The output ends of the two sets of cylinders (7) are fixedly installed with the same set of connecting plates (5). An upper mold (4) is fixedly installed at the bottom of the connecting plate (5). The upper mold (4) and the lower mold... The connecting plate (5) is adapted to the connecting plate (2). Two sets of connecting rods (11) are fixedly installed at the bottom of the connecting plate (5). The same set of sliding plates (12) are fixedly installed at the bottom of the two sets of connecting rods (11). Two sets of top rods (13) are fixedly installed at the top of the sliding plate (12). The two sets of top rods (13) penetrate into the interior of the lower mold (2). Two sets of limiting rods (14) are slidably installed inside the sliding plate (12). The two ends of the two sets of limiting rods (14) are fixedly connected to the top inner wall of the base and the worktable (1), respectively.

2. The plastic mold for preventing impurities from falling in according to claim 1, characterized in that, A dust suction port (16) is provided inside one side of the lower mold (2), and a dust suction assembly (8) is provided on one side of the dust suction port (16). The dust suction assembly (8) includes a collection box (801), which is fixedly connected to the lower mold (2). A filter screen (802) is slidably installed inside the lower mold (2). An air inlet is provided on one side of the collection box (801), and an exhaust fan (803) is provided on one side of the air inlet. An exhaust pipe (804) is fixedly installed on one side of the exhaust fan (803).

3. A plastic mold for preventing impurities from falling in according to claim 1, characterized in that, Both sets of connecting rods (11) are slidably installed inside the workbench (1), and both sets of top rods (13) are slidably connected to the lower mold (2) and the workbench (1). Both sets of limiting rods (14) are fitted with springs (15) on their outer sides, and the two ends of the springs (15) are fixedly connected to the slide plate (12) and the base, respectively.

4. A plastic mold for preventing impurities from falling in according to claim 1, characterized in that, The connecting plate (5) is slidably sleeved on the outside of the four sets of fixed rods (9). Each of the four sets of fixed rods (9) is sleeved with a buffer spring (10). The two ends of the four sets of buffer springs (10) are fixedly connected to the connecting plate (5) and the worktable (1) respectively.

5. A plastic mold for preventing impurities from falling in according to claim 1, characterized in that, A baffle (3) is fixedly installed on one side of the upper mold (4), and the baffle (3) is adapted to the dust suction port (16).

6. A plastic mold for preventing impurities from falling in according to claim 2, characterized in that, Both the connecting plate (5) and the upper mold (4) have pouring ports inside, and a rotating door (17) is rotatably installed on one side of the collection box (801).

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