A sensor plastic mold with exhaust optimization groove

Abstract

This utility model discloses a sensor plastic mold with venting optimization grooves, specifically relating to the field of plastic mold technology. It includes a placement plate, with a left fixing plate fixedly placed on the left side and a right fixing plate correspondingly installed on the right side. A left stamping mold is fixedly installed on the right side of the left fixing plate. By setting a first annular venting groove and a first vent hole on the inner wall of the stamping groove, a second annular venting groove and a second vent hole on the side of the stamping protrusion, a third annular venting groove and a fourth vent hole in the positioning groove, and the overlapping arrangement of the third and second vent holes, a multi-layered, all-round venting optimization groove system is constructed. This increases the channel area and path for gas discharge, allowing the gas in the mold cavity to be discharged more quickly and smoothly, effectively avoiding defects such as bubbles and scorching, and significantly improving the molding quality of the sensor plastic parts.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and more specifically, to a sensor plastic mold with an exhaust optimization groove. Background Technology

[0002] In the manufacturing of sensor plastic parts, the stamping and forming of plastic molds is a key step, and the venting performance of the mold plays a vital role in product quality.

[0003] The existing publication number CN118808594A discloses a high-pressure casting mold with rapid venting, including an upper mold and a lower mold below the upper mold. An extrusion rod is fixedly mounted at the bottom of the upper mold. Through the arrangement of the upper mold, lower mold, venting groove, circular groove one, circular groove two, air outlet groove, ultrafiltration membranes one and two, sleeve, and air outlet pipe, the extrusion rod pushes a slide bar downwards during mold locking, thereby connecting the interior of the groove with the interior of the lower mold. As the injection molding process proceeds, air in the lower mold can enter the air outlet through ultrafiltration membrane two, thus allowing air to enter the sleeve. The pressure change opens solenoid valve one, achieving the effect of venting gas from the mold in two ways, thereby improving the venting efficiency of the mold. The inventors discovered the following problems in the prior art during the development of this utility model:

[0004] When plastic material is filled into the mold cavity under high pressure, if the air inside the mold cavity cannot be discharged in time and effectively, it will be compressed and trapped inside the plastic. As the stamping continues, the trapped gas expands due to heat, which can easily form air bubbles inside the plastic part. The presence of air bubbles will not only damage the structural integrity of the sensor plastic part, causing defects such as pits and bulges on its appearance and affecting the aesthetics of the product, but also reduce the mechanical properties of the plastic part, such as strength and toughness, making the product more prone to cracking or damage during use and shortening the product's service life.

[0005] Therefore, a sensor plastic mold with an exhaust optimization groove is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sensor plastic mold with an exhaust optimization groove to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sensor plastic mold with an exhaust optimization groove, comprising a placement plate, a left fixing plate fixedly placed on the left side of the placement plate, a right fixing plate correspondingly installed on the right side of the placement plate, a left stamping die fixedly installed on the right side of the left fixing plate, a stamping groove formed on the left stamping die, a plurality of stamping pumps evenly distributed on the side of the right fixing plate facing the left fixing plate, a right stamping die detachably installed on one side of the stamping pumps, a plurality of positioning grooves evenly formed on one side of the left stamping die, a first vent hole formed on the inner wall of the stamping groove, and a second vent hole provided inside the positioning groove, the second vent hole being connected to the first vent hole.

[0008] Preferably, a waste box is provided above the placement plate, and the waste box is located directly below the left stamping die and the right stamping die.

[0009] Preferably, a stamping protrusion is provided on the side of the right stamping die near the left stamping die. The shape of the stamping protrusion matches the stamping groove on the left stamping die. A third vent hole is provided on the upper side of the stamping protrusion. When the right stamping die and the left stamping die overlap during the stamping process, the third vent hole will overlap with the corresponding second vent hole on the left stamping die.

[0010] Preferably, a positioning plate is provided on the right side of the right stamping die, and the stamping pump and the right stamping die are positioned by the positioning plate. The right stamping die can be closed with the left stamping die according to a predetermined trajectory.

[0011] Preferably, positioning housings are fixedly installed at all four corners of the left stamping die by welding, and a guide rod is fixedly installed on the right stamping die on the side closest to the left stamping die, corresponding to the position of the positioning housing.

[0012] Preferably, when the right stamping die moves closer to the left stamping die under the drive of the stamping pump, the guide rod at a specific position on the right stamping die slowly inserts into the corresponding positioning housing installed on the left stamping die, and the positioning housing has a structure that cooperates with the guide rod.

[0013] Preferably, each side of the stamping convex plate is provided with an exhaust hole, and the exhaust hole communicates with the third vent hole.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] Compared with existing technologies, this sensor plastic mold with an optimized venting groove effectively solves the problem of poor venting through its designed multi-channel venting structure. The first vent hole on the inner wall of the stamping groove is connected to the second vent hole in the positioning groove, forming a basic venting path; the third vent hole on the upper side of the stamping convex plate coincides with the second vent hole when the mold is closed, further expanding the venting channels.

[0016] Compared with existing technologies, this sensor plastic mold with venting optimization grooves constructs a comprehensive, multi-layered venting network by interconnecting the venting holes on the side of the stamping convex plate with the third venting hole. This greatly increases the area and path for gas discharge, allowing air in the mold cavity to be discharged quickly and smoothly during the filling process of the plastic material. This effectively prevents gas from being compressed and trapped inside the plastic part, forming air bubbles, and also prevents the plastic part from being locally scorched due to the thermal expansion of gas. As a result, it significantly improves the molding quality of the sensor plastic part, reduces product defects, and increases the product yield. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a frontal view of the structure of this utility model.

[0019] Figure 3 This is a top view of the internal structure of this utility model from the right side.

[0020] The attached diagram is labeled as follows: 1. Placement plate; 2. Scrap box; 3. Left fixing plate; 4. Right fixing plate; 5. Left stamping die; 6. Stamping groove; 7. Stamping pump; 8. Right stamping die; 9. Positioning plate; 10. Stamping protrusion; 11. Positioning housing; 12. Guide rod; 13. Positioning groove; 14. First vent; 15. Second vent; 16. Third vent; 17. Exhaust hole. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] As attached Figures 1 to 3The sensor plastic mold with an exhaust optimization groove shown includes a placement plate 1. A left fixing plate 3 is fixedly placed on the left side of the placement plate 1, and a right fixing plate 4 is installed on the right side of the placement plate 1. A left stamping die 5 is fixedly installed on the right side of the left fixing plate 3. A stamping groove 6 is opened on the left stamping die 5. A plurality of stamping pumps 7 are evenly distributed on the side of the right fixing plate 4 facing the left fixing plate 3. A right stamping die 8 is detachably installed on one side of the stamping pumps 7. A plurality of positioning grooves 13 are evenly opened on one side of the left stamping die 5. A first vent hole 14 is opened on the inner wall of the stamping groove 6, and a second vent hole 15 is provided inside the positioning groove 13, and the second vent hole 15 is connected to the first vent hole 14.

[0024] Specifically: By opening a first vent 14 in the inner wall of the stamping groove 6 and setting a second vent 15 inside the positioning groove 13, and connecting the two, an efficient exhaust channel is constructed. During the stamping process, the compressed air in the mold cavity due to the plastic material filling can be discharged in time, effectively avoiding defects such as bubbles and scorching caused by gas retention, greatly improving the molding quality of sensor plastic parts and increasing product yield. Secondly, multiple stamping pumps 7 are evenly distributed on one side of the right fixed plate 4 to provide sufficient and stable stamping power to ensure smooth stamping operation. Thirdly, the left stamping die 5 has a positioning groove 13, which, together with other positioning structures, can achieve positioning, ensuring accurate mold closing between the right stamping die 8 and the left stamping die 5, improving the stamping accuracy and stability of the die, reducing the scrap rate, and thus saving production costs and improving production efficiency.

[0025] Example 2

[0026] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 3 As shown below, see details:

[0027] As a preferred embodiment, a waste box 2 is provided above the placement plate 1. The waste box 2 is located directly below the left stamping die 5 and the right stamping die 8, so that the waste and scrap generated during the stamping process can fall directly into the waste box 2. There is no need for frequent manual cleaning of the waste around the die, which not only keeps the work area clean and orderly, but also greatly improves production efficiency. At the same time, the design of the waste box 2 also facilitates the centralized processing and recycling of waste in the future.

[0028] In a preferred embodiment, a stamping protrusion 10 is provided on the side of the right stamping die 8 near the left stamping die 5. The shape of the stamping protrusion 10 matches the stamping groove 6 on the left stamping die 5 to ensure a proper fit during stamping. A third vent hole 16 is provided on the upper side of the stamping protrusion 10. When the right stamping die 8 and the left stamping die 5 overlap during the stamping process, the third vent hole 16 will overlap with the corresponding second vent hole 15 on the left stamping die 5, thereby forming an exhaust channel to effectively discharge the gas in the stamping cavity and improve the molding quality of the plastic parts.

[0029] In a preferred embodiment, a positioning plate 9 is provided on the right side of the right stamping die 8. The positioning plate 9 is made of high precision and has a stable and flat structure. The stamping pump 7 and the right stamping die 8 are positioned by the positioning plate 9, which can ensure that when the stamping pump 7 drives the right stamping die 8 to move, the right stamping die 8 can close with the left stamping die 5 according to a predetermined trajectory, effectively avoiding mold closing deviation and greatly improving the accuracy and stability of die stamping.

[0030] In a preferred embodiment, positioning housings 11 are fixedly installed at the four corners of the left stamping die 5 by welding. The positioning housings 11 are symmetrical, stable and reliable. The right stamping die 8 is fixedly installed with a guide rod 12 on the side close to the left stamping die 5, corresponding to the position of the positioning housings 11. The guide rod 12 is straight and of the correct size, providing guidance for subsequent mold closing.

[0031] In a preferred embodiment, when the right stamping die 8 moves closer to the left stamping die 5 under the drive of the stamping pump 7, the guide rod 12 at a specific position on the right stamping die 8 slowly inserts into the corresponding positioning housing 11 installed on the left stamping die 5. The positioning housing 11 has a mechanism that cooperates with the guide rod 12 to guide the movement of the right stamping die 8, ensuring that the right stamping die 8 does not deviate during the process of moving closer to the left stamping die 5, thereby ensuring the accuracy and stability of die closing and improving the quality of stamped products.

[0032] In a preferred embodiment, the side of the stamping punch 10 is provided with vent holes 17 evenly distributed. The vent holes 17 and the third vent hole 16 on the upper side of the stamping punch 10 are interconnected to form an efficient venting network. When the mold is performing a stamping operation, the plastic material fills the mold cavity under high pressure, and the internal air is rapidly compressed. At this time, the interconnected vent holes 17 and the third vent hole 16 can promptly discharge the gas in the mold cavity, effectively avoiding defects such as bubbles and scorching caused by gas retention, thereby significantly improving the quality and yield of stamped products.

[0033] In this embodiment, the left stamping die 5, the stamping pump 7, and the right stamping die 8 are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, and we will not go into detail about them here.

[0034] The working process of this utility model is as follows: First, the plastic material is placed in the stamping groove 6 of the left stamping mold 5. The stamping pump 7 is started, and the stamping pump 7 pushes the right stamping mold 8 closer to the left stamping mold 5. During the approach process, the guide rod 12 is inserted into the positioning housing 11 to provide guidance for the right stamping mold 8, ensuring that the right stamping mold 8 and the left stamping mold 5 are accurately closed. When the molds are closed, the stamping protrusion 10 enters the stamping groove 6, and the third vent 16 coincides with the second vent 15 to form a complete exhaust channel. As the stamping proceeds, the plastic material fills the mold cavity under high pressure. The air in the mold cavity is discharged to the outside of the mold through the exhaust channels such as the first vent 14, the second vent 15, the third vent 16, and the exhaust hole 17, avoiding the accumulation of gas in the mold cavity. After the stamping is completed, the stamping pump 7 drives the right stamping mold 8 to move to the right and remove the molded sensor plastic part. At the same time, the waste generated during the stamping process is cleaned into the waste box 2 to keep the working area clean.

[0035] The above describes the working principle of a sensor plastic mold with an exhaust optimization groove.

Claims

1. A sensor plastic mold with exhaust optimization groove, comprising a placing plate (1), characterized in that: A left fixing plate (3) is fixedly placed on the left side of the placement plate (1), and a right fixing plate (4) is installed on the right side of the placement plate (1). A left stamping die (5) is fixedly installed on the right side of the left fixing plate (3). A stamping groove (6) is provided on the left stamping die (5). Multiple stamping pumps (7) are evenly distributed on the side of the right fixing plate (4) facing the left fixing plate (3). A right stamping die (8) is detachably installed on one side of the stamping pumps (7). Multiple positioning grooves (13) are also evenly provided on one side of the left stamping die (5). A first vent hole (14) is provided on the inner wall of the stamping groove (6), and a second vent hole (15) is provided inside the positioning groove (13). The second vent hole (15) is connected to the first vent hole (14).

2. The sensor plastic mold with vent optimization slots of claim 1, wherein: A waste box (2) is provided above the placement plate (1), and the waste box (2) is located directly below the left stamping die (5) and the right stamping die (8).

3. A sensor plastic mold with vent optimization slots as defined in claim 2, wherein: The right stamping die (8) is provided with a stamping protrusion (10) on the side close to the left stamping die (5). The shape of the stamping protrusion (10) matches the stamping groove (6) on the left stamping die (5). A third vent hole (16) is provided on the upper side of the stamping protrusion (10). When the right stamping die (8) and the left stamping die (5) overlap during the stamping process, the third vent hole (16) will overlap with the corresponding second vent hole (15) on the left stamping die (5).

4. The sensor plastic mold with vent optimization slots of claim 2, wherein: The right stamping die (8) is provided with a positioning plate (9) on its right side. The stamping pump (7) and the right stamping die (8) are positioned by the positioning plate (9). The right stamping die (8) can be closed with the left stamping die (5) according to a predetermined trajectory.

5. A sensor plastic mold with vent optimization slots as defined in claim 4, wherein: The left stamping die (5) has a positioning housing (11) fixedly installed at each of its four corners by welding. The right stamping die (8) has a guide rod (12) fixedly installed on the side of the right stamping die (5) corresponding to the position of the positioning housing (11).

6. The sensor plastic mold with vent optimization slots of claim 4, wherein: When the right stamping die (8) moves closer to the left stamping die (5) under the drive of the stamping pump (7), the guide rod (12) at a specific position of the right stamping die (8) slowly inserts into the corresponding positioning housing (11) installed on the left stamping die (5). The positioning housing (11) has a structure that cooperates with the guide rod (12).

7. The sensor plastic mold with vent optimization slots of claim 3, wherein: The side of the stamping convex plate (10) is provided with exhaust holes (17), and the exhaust holes (17) are connected to the third vent hole (16) on the upper side of the stamping convex plate (10).

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