Plastic mold feeding device capable of preventing blockage
By introducing a drive block, extension rod, and other structures into the plastic mold feeding device to scrape the inner wall of the blank barrel, and combining it with an air pump to achieve closed mixing, the problems of blank solidification and blockage are solved, ensuring smooth discharge and uniform mixing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-03
AI Technical Summary
Existing plastic mold feeding devices are prone to causing the preform to solidify in humid or low-temperature environments, resulting in incomplete discharge and easy blockage. Furthermore, the preform tends to adhere to the inner wall during the mixing process, increasing the difficulty of maintenance.
A structure including a drive block, an extension rod, a moving rod, a following ball, a driving plate, and a surrounding track is designed to scrape the blank material on the inner wall of the blank barrel, while achieving closed mixing and rapid discharge of the blank material through an air pump, a blocking pad, an elastic ball, and a compression spring.
It effectively prevents the raw material from adhering to the inner wall, ensures uniform mixing, avoids environmental influences in a closed state, achieves rapid discharge, and avoids blockage.
Smart Images

Figure CN224074774U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic processing technology, specifically relating to a plastic mold feeding device to prevent clogging. Background Technology
[0002] With the rapid development of the plastics industry and the continuous improvement of general engineering plastics in terms of strength, the application scope of plastic products is constantly expanding, and the consumption of plastic products is also increasing. Plastic molds are tools for producing plastic products. In the plastics processing industry, they are used in conjunction with plastic molding machines to give plastic products a complete shape and precise dimensions. Generally, a plastic mold consists of two parts: a moving mold and a fixed mold. The moving mold is installed on the moving platen of the injection molding machine, and the fixed mold is installed on the fixed platen of the injection molding machine. This combination contains a molding cavity. During injection, the moving mold and the fixed mold close to form a gating system and a cavity. When the mold opens, the moving mold and the fixed mold separate to remove the plastic product. The mold is clamped on the injection molding machine, and molten plastic is injected into the molding cavity and cooled and solidified in the cavity. Then the upper and lower molds separate, and the product is ejected from the mold cavity and removed from the mold through the ejection system. Finally, the mold closes again for the next injection. The entire injection process is cyclical.
[0003] The prior art patent publication number CN 212312466 U describes a feeding device for plastic molds. While this patent is convenient to use and addresses the difficulty of screening raw materials, it still has the following shortcomings in practical use: In practice, this feeding device for plastic molds lacks a sealing structure in the raw material container. Environmental factors such as humidity and low temperatures can cause a significant decrease in the quality of the raw material, and there is a problem of solidification inside the container leading to discharge blockage. Furthermore, during discharge, the raw material adheres to the inner wall of the container during stirring, resulting in a large amount of raw material adhering to the inner wall, causing waste and increasing maintenance difficulty.
[0004] Therefore, a plastic mold feeding device that prevents clogging is needed to solve the problems of incomplete material discharge and easy clogging in the existing technology. Utility Model Content
[0005] The purpose of this invention is to provide a plastic mold feeding device that prevents clogging, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic mold feeding device for preventing blockage, comprising a base, a support leg fixedly connected to the surface of the base, a foot pad fixedly connected to the surface of the support leg, a fixing rod fixedly connected to the surface of the base, and a blank bucket fixedly connected to the surface of the fixing rod.
[0007] It should be noted in the solution that a feed pipe is fixedly connected to the surface of the blank barrel, a drive device is fixedly connected to the surface of the blank barrel, and an air pump is fixedly connected to the surface of the blank barrel.
[0008] It is further worth noting that a fixing frame is fixedly connected to the surface of the raw material barrel, a connecting block is fixedly connected to the surface of the fixing frame, a connecting rod is fixedly connected to the surface of the connecting block, a track rod is rotatably connected to the surface of the connecting rod, and a limiting block is fixedly connected to the surface of the track rod.
[0009] Furthermore, it should be noted that a drive block is slidably connected to the surface of the track rod, an extension rod is fixedly connected to the surface of the drive block, and a moving rod is slidably connected to the surface of the extension rod.
[0010] In a preferred embodiment, a follower ball is fixedly connected to the surface of the moving rod, a drive plate is fitted onto the surface of the follower ball, and a surrounding track is fitted onto the surface of the drive plate.
[0011] In a preferred embodiment, a blocking pad is fixedly connected to the surface of the blank barrel, an elastic ball is fitted onto the surface of the blocking pad, a fitting block is fixedly connected to the surface of the elastic ball, and a compression spring is fixedly connected to the surface of the fitting block.
[0012] In a preferred embodiment, a discharge ring is fixedly connected to the surface of the interlocking block, the surface of the discharge ring is provided with a discharge port, and a discharge pipe is fixedly connected to the surface of the blank barrel.
[0013] Compared with the prior art, the plastic mold feeding device for preventing clogging provided by this utility model has at least the following beneficial effects:
[0014] (1) By setting up a drive block, extension rod, moving rod, following ball, driving plate and surrounding track, the plastic mold feeding device can scrape the blank attached to the inner wall of the blank bucket while stirring the blank, so that the blank attached to the inner wall of the blank bucket will no longer stick to the inner wall of the blank bucket, avoiding the accumulation of blank inside and preventing discharge. At the same time, due to the presence of the extension rod and moving rod, the blank inside the bucket can be stirred while scraping the blank on the inner wall, ensuring uniform mixing of the blank.
[0015] (2) By setting up an air pump, a blocking pad, an elastic ball, a fitting block and a compression spring, the plastic mold feeding device is in a closed state when mixing and stirring the blank, which avoids the blank from coming into contact with the external environment on a large scale and avoids the environment such as humidity and low temperature from affecting the quality of the blank. At the same time, the blank can be discharged quickly under the action of the air pump when discharging, and blockage can be avoided. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the base structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the raw material bucket structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the discharge ring structure of this utility model.
[0019] In the diagram: 101, base; 102, support leg; 103, foot pad; 104, fixing rod; 105, blank bucket; 106, feed pipe; 107, drive device; 108, air pump; 109, connecting block; 110, connecting rod; 201, drive block; 202, extension rod; 203, moving rod; 204, following ball; 205, driving plate; 206, surrounding track; 207, track rod; 208, limiting block; 209, blocking pad; 210, elastic ball; 301, interlocking block; 302, compression spring; 303, discharge ring; 304, discharge port; 305, discharge pipe; 306, fixing frame. Detailed Implementation
[0020] The present invention will be further described below with reference to the embodiments.
[0021] Please see Figure 1-3This utility model provides a plastic mold feeding device to prevent clogging, including a base 101, a support leg 102 fixedly connected to the surface of the base 101, a foot pad 103 fixedly connected to the surface of the support leg 102, a fixing rod 104 fixedly connected to the surface of the base 101, a blank hopper 105 fixedly connected to the surface of the fixing rod 104, a feed pipe 106 fixedly connected to the surface of the blank hopper 105, a driving device 107 fixedly connected to the surface of the blank hopper 105, an air pump 108 fixedly connected to the surface of the blank hopper 105, a fixing frame 306 fixedly connected to the surface of the fixing frame 306, a connecting block 109 fixedly connected to the surface of the connecting block 109, a connecting rod 110 fixedly connected to the surface of the connecting rod 110, a track rod 207 rotatably connected to the surface of the connecting rod 110, and a limiting block 2 fixedly connected to the surface of the track rod 207. 08. A drive block 201 is slidably connected to the surface of the track rod 207. An extension rod 202 is fixedly connected to the surface of the drive block 201. A moving rod 203 is slidably connected to the surface of the extension rod 202. A following ball 204 is fixedly connected to the surface of the moving rod 203. A driving plate 205 is fitted to the surface of the following ball 204. A surrounding track 206 is fitted to the surface of the driving plate 205. A blocking pad 209 is fixedly connected to the surface of the blank bucket 105. An elastic ball 210 is fitted to the surface of the blocking pad 209. A fitting block 301 is fixedly connected to the surface of the elastic ball 210. A compression spring 302 is fixedly connected to the surface of the fitting block 301. A discharge ring 303 is fixedly connected to the surface of the fitting block 301. A discharge port 304 is opened on the surface of the discharge ring 303. A discharge pipe 305 is fixedly connected to the surface of the blank bucket 105.
[0022] Further as Figure 1 , Figure 2 and Figure 3As shown, it is worth noting that when using this plastic mold feeding device, the user first loads the preform into the preform bucket 105 through the feed pipe 106. The preform is stored in the preform bucket 105. At this time, the drive blocks 201 at the upper and lower ends of the preform bucket 105 are respectively attached to the surface of the limiting block 208 at their bottom. Then, the device is started. After receiving the start signal, the drive block 201 rotates around the center of the connecting rod 110, and drives the extension rod 202, the moving rod 203, the following ball 204 and the driving plate 205 connected to it to rotate together. Since the driving plate 205 is embedded in the surrounding rail... Within track 206, the driven plate 205 moves along the locking groove within the surrounding track 206 during rotation. The blank barrel 105 has a frustum-shaped structure. As the driven plate 205 moves along the locking groove within the surrounding track 206, the linear distance from the driving block 201 and the horizontal height of the extension rod 202 change due to the spiral structure of the surrounding track 206. When the linear distance exceeds the length of the moving rod 203, the extension rod 202 within the moving rod 203 extends out to maintain balance. During continuous rotation, the horizontal height of the driving block 201 contacts... When the material reaches the top limiting block 208, it will rotate in the opposite direction. The connected extension rod 202, moving rod 203, following ball 204, and driving plate 205 will also rotate in the opposite direction until the driving block 201 contacts the bottom limiting block 208 and then rotates in the opposite direction again. This cycle repeats continuously. During the rotation, the extension rod 202 and moving rod 203 continuously mix and stir the material, while the driving plate 205 scrapes the material adhering to the inner wall of the material container 105, causing the material adhering to the inner wall of the material container 105 to be mixed into the container and stirred together. After the material is stirred, the air pump 108 is started, causing the air pump to... 108 pressurizes the inside of the raw material barrel 105. After the pressure inside the raw material barrel 105 reaches a certain value, the elastic ball 210 moves left and right towards the ground under pressure, so that the opening at the center of the blocking pad 209 for embedding the elastic ball 210 is exposed. The mixed raw material flows downward through the opening and is discharged through the discharge pipe 305. During this process, the drive block 201 continues to drive the extension rod 202, the moving rod 203, the following ball 204 and the driving plate 205 to rotate, so that the driving plate 205 continues to scrape the inner wall of the raw material barrel 105 to ensure that the raw material in the raw material barrel 105 is completely discharged.
[0023] According to the above working process, by setting up the drive block 201, extension rod 202, moving rod 203, following ball 204, driving plate 205, and surrounding track 206, the plastic mold feeding device can simultaneously scrape the preform adhering to the inner wall of the preform bucket 105 while stirring the preform, so that the preform adhering to the inner wall of the preform bucket 105 no longer sticks to the inner wall of the preform bucket 105, avoiding the accumulation of preform inside and preventing discharge. At the same time, due to the presence of the extension rod 202 and the moving rod 203, when stirring the preform, the device can also scrape the preform adhering to the inner wall of the preform bucket 105. While scraping the inner wall of the blank, the blank inside the barrel can be stirred, ensuring uniform mixing of the blank. By setting up an air pump 108, a blocking pad 209, an elastic ball 210, a fitting block 301, and a compression spring 302, the plastic mold feeding device is in a sealed state when mixing the blank, avoiding large-area contact of the blank with the external environment. This prevents the blank from being affected by humidity, low temperature, and other environmental factors. At the same time, the blank can be discharged quickly under the action of the air pump 108, and blockage can be avoided.
[0024] This solution has the following working process: When using the plastic mold feeding device, the user first loads the preform into the preform bucket 105 through the feed pipe 106. The preform is stored in the preform bucket 105. At this time, the drive blocks 201 at the upper and lower ends of the preform bucket 105 are respectively attached to the surface of the limiting block 208 at their bottom. Then, the device is started. After receiving the start signal, the drive block 201 rotates around the center of the connecting rod 110, and drives the connected extension rod 202, moving rod 203, follower ball 204 and drive plate 205 to rotate together. Since the drive plate 205 is embedded in the surrounding rail... Within track 206, the driven plate 205 moves along the locking groove within the surrounding track 206 during rotation. The blank barrel 105 has a frustum-shaped structure. As the driven plate 205 moves along the locking groove within the surrounding track 206, the linear distance from the driving block 201 and the horizontal height of the extension rod 202 change due to the spiral structure of the surrounding track 206. When the linear distance exceeds the length of the moving rod 203, the extension rod 202 within the moving rod 203 extends out to maintain balance. During continuous rotation, the horizontal height of the driving block 201 contacts... When the material reaches the top limiting block 208, it will rotate in the opposite direction. The connected extension rod 202, moving rod 203, following ball 204, and driving plate 205 will also rotate in the opposite direction until the driving block 201 contacts the bottom limiting block 208 and then rotates in the opposite direction again. This cycle repeats continuously. During the rotation, the extension rod 202 and moving rod 203 continuously mix and stir the material, while the driving plate 205 scrapes the material adhering to the inner wall of the material container 105, causing the material adhering to the inner wall of the material container 105 to be mixed into the container and stirred together. After the material is stirred, the air pump 108 is started, causing the air pump to... 108 pressurizes the inside of the raw material barrel 105. After the pressure inside the raw material barrel 105 reaches a certain value, the elastic ball 210 moves left and right towards the ground under pressure, so that the opening at the center of the blocking pad 209 for embedding the elastic ball 210 is exposed. The mixed raw material flows downward through the opening and is discharged through the discharge pipe 305. During this process, the drive block 201 continues to drive the extension rod 202, the moving rod 203, the following ball 204 and the driving plate 205 to rotate, so that the driving plate 205 continues to scrape the inner wall of the raw material barrel 105 to ensure that the raw material in the raw material barrel 105 is completely discharged.
[0025] In summary: By incorporating the drive block 201, extension rod 202, moving rod 203, following ball 204, driving plate 205, and surrounding track 206, this plastic mold feeding device can simultaneously scrape the preform adhering to the inner wall of the preform bucket 105 while stirring it. This prevents the preform adhering to the inner wall of the preform bucket 105 from sticking to it, thus avoiding preform accumulation and preventing discharge. Furthermore, the presence of the extension rod 202 and moving rod 203 allows for simultaneous scraping of the preform on the inner wall and stirring of the preform inside the bucket, ensuring uniform mixing. The inclusion of the air pump 108, blocking pad 209, elastic ball 210, interlocking block 301, and compression spring 302 further enhances the plastic mold feeding device's ability to effectively scrape the preform adhering to the inner wall, preventing it from accumulating and hindering discharge. The plastic mold feeding device is in a sealed state when mixing the raw material, which avoids the raw material from coming into contact with the external environment over a large area. This prevents the raw material from being affected by the environment such as humidity and low temperature. At the same time, it can discharge the material quickly under the action of the air pump 108 and avoids blockage. It should be noted that the surrounding track 206 has a spiral structure and the fixing point fixed to the inner wall of the raw material barrel 105 has a locking groove for locking the driving plate 205 and providing a track for the driving plate 205 when it scrapes the inner wall of the raw material barrel 105. The drive block 201 is provided with a follower ball 204 at the connection with the extension rod 202 to ensure the balance of the height change of the drive block 201 while driving the driving plate 205 to rotate.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model has been fully disclosed by the appended claims and their equivalents, and therefore will not be repeated in the specification.
Claims
1. A plastic mold feed device for preventing clogging comprising a base (101) characterized by: The surface of the base (101) is fixedly connected with a supporting leg (102), the surface of the supporting leg (102) is fixedly connected with a foot pad (103), the surface of the base (101) is fixedly connected with a fixing rod (104), and the surface of the fixing rod (104) is fixedly connected with an embryo material barrel (105).
2. A plastic mold feed apparatus that prevents clogging according to claim 1, characterized by: The surface of the embryo material barrel (105) is fixedly connected with an inlet pipe (106), the surface of the embryo material barrel (105) is fixedly connected with a driving device (107), and the surface of the embryo material barrel (105) is fixedly connected with an air pump (108).
3. A plastic mould feed device to prevent blockage according to claim 2, wherein: The surface of the embryo material barrel (105) is fixedly connected with a fixing frame (306), the surface of the fixing frame (306) is fixedly connected with a connecting block (109), the surface of the connecting block (109) is fixedly connected with a connecting rod (110), the surface of the connecting rod (110) is rotatably connected with a track rod (207), and the surface of the track rod (207) is fixedly connected with a limiting block (208).
4. A plastic mould feed device to prevent blockage according to claim 3 wherein: The surface of the track rod (207) is slidably connected with a driving block (201), the surface of the driving block (201) is fixedly connected with an extension rod (202), and the surface of the extension rod (202) is slidably connected with a moving rod (203).
5. A plastic mould feed device to prevent blockage according to claim 4 wherein: The surface of the moving rod (203) is fixedly connected with a following ball (204), the surface of the following ball (204) is embeddedly connected with a driving sheet (205), and the surface of the driving sheet (205) is embeddedly connected with a surrounding track (206).
6. A plastic mould feed device to prevent blockage according to claim 5 wherein: The surface of the embryo material barrel (105) is fixedly connected with a blocking pad (209), the surface of the blocking pad (209) is embeddedly connected with an elastic ball (210), the surface of the elastic ball (210) is fixedly connected with an embedded block (301), the surface of the embedded block (301) is fixedly connected with a compression spring (302).
7. A plastic mould feed device to prevent blockage according to claim 6 wherein: The surface of the embedded block (301) is fixedly connected with a discharging ring (303), the surface of the discharging ring (303) is provided with a discharging port (304), and the surface of the embryo material barrel (105) is fixedly connected with a discharging pipe (305).
Citation Information
Patent Citations
Feeding device for plastic mold
CN212312466U