CN-224224428-U - Cold runner regulating valve for silica gel mold

Abstract

The utility model discloses a cold runner regulating valve for a silica gel mold, which comprises a balance regulating valve, a connecting rod, a sliding rod, an adjusting rod and a sealing valve needle, wherein the balance regulating valve, the connecting rod, the sliding rod and the adjusting rod are arranged on a fixed die fixing plate, the balance regulating valve is in threaded fit with the fixed die fixing plate to regulate the position of the balance regulating valve on the fixed die fixing plate, one end of the connecting rod is connected with the balance regulating valve, the other end of the connecting rod is connected with the sliding rod, the sliding rod is connected with the adjusting rod in sliding fit, the sealing valve needle is arranged on the adjusting rod and is arranged towards the cold runner nozzle, one end of the sliding rod, which is close to the adjusting rod, is provided with a first push-pull inclined surface, one end of the adjusting rod, which is close to the sliding fit with the first push-pull inclined surface to regulate the position of the sealing valve needle relative to the cold runner nozzle, and by the method, the flow of silica gel entering a mold cavity can be regulated, and flash or lack of glue can be avoided or reduced.

Inventors

• WANG GUIYONG
• XIE CHENLEI

Assignees

• 易纳纬(上海)智能科技有限公司

Dates

Publication Date

20260512

Application Date

20250527

Claims (6)

1. 1. A cold runner regulating valve for a silica gel mold is characterized by comprising a balance regulating valve (1), a connecting rod (2), a sliding rod (3), a regulating rod (4) and a sealing valve needle (5), wherein the balance regulating valve (1), the connecting rod (2), the sliding rod (3) and the regulating rod (4) are arranged on a fixed mold fixing plate (7), the balance regulating valve (1) and the fixed mold fixing plate (7) are in threaded fit to regulate the position of the balance regulating valve (1) on the fixed mold fixing plate (7), one end of the connecting rod (2) is connected with the balance regulating valve (1), the other end of the connecting rod (2) is connected with the sliding rod (3), the sliding rod (3) is connected with the regulating rod (4) in sliding fit, the sealing valve needle (5) is arranged on the regulating rod (4) and is arranged towards a cold runner nozzle head, the regulating rod (4) and the sliding rod (3) are mutually vertically arranged, the balance regulating valve (1) is used for screwing in or screwing back to slide the connecting rod (2) matched with the fixed mold fixing plate (7), the connecting rod (2) is driven by the sliding rod (3) to move close to a first inclined surface (31), the second push-pull inclined plane (41) is arranged at one end of the adjusting rod (4) close to the sliding rod (3), and the second push-pull inclined plane (41) is in sliding fit with the first push-pull inclined plane (31) so as to adjust the position of the sealing valve needle (5) relative to the cold runner nozzle.
2. 2. The cold runner regulating valve for the silica gel mold according to claim 1, wherein the balance regulating valve (1) comprises an operation part (11), a middle column (12) and a first connecting part (13) which are sequentially connected, external threads matched with the fixed mold fixing plate (7) are formed on the middle column (12), the first connecting part (13) is in rotary fit with the connecting rod (2), and the operation part (11) is positioned outside the fixed mold fixing plate (7) so as to be convenient for manually screwing the balance regulating valve (1) to regulate the relative position of the balance regulating valve on the fixed mold fixing plate (7).
3. 3. The cold runner regulating valve for the silica gel mold is characterized in that the connecting rod (2) is arranged in the fixed mold fixing plate (7) and is in sliding fit with the fixed mold fixing plate (7), a first limit rotating groove (21) matched with the first connecting part (13) is formed in one end, close to the balance regulating valve (1), of the connecting rod (2), the first limit rotating groove (21) is used for limiting the position of the first connecting part (13) and preventing the first connecting part (13) from being separated from the connecting rod (2), and the first connecting part (13) is in rotating fit with the first limit rotating groove (21).
4. 4. A cold runner regulating valve for a silica gel mold is characterized in that a second connecting part (32) is arranged at one end, close to a connecting rod (2), of the sliding rod (3), a second limiting rotating groove (22) is formed at one end, close to the sliding rod (3), of the connecting rod (2), the second limiting rotating groove (22) is used for limiting the position of the second connecting part (32) and preventing the second connecting part (32) from being separated from the connecting rod (2), and the second connecting part (32) is in rotating fit with the second limiting rotating groove (22).
5. 5. The cold runner regulating valve for a silica gel mold according to claim 1, wherein the side surface of the sliding rod (3) close to the first push-pull inclined surface (31) is provided with a slope guiding groove (33), the side surface of the adjusting rod (4) close to the second push-pull inclined surface (41) is provided with a slope guiding block (42), and the slope guiding block (42) is in sliding fit with the slope guiding groove (33).
6. 6. The cold runner regulating valve for the silica gel mold according to claim 1, wherein the regulating rod (4) is sleeved with a protection guide sleeve (6), the protection guide sleeve (6) is arranged in a fixed mold fixing plate (7), and one end of the sliding rod (3) penetrates through the protection guide sleeve (6) to be connected with the regulating rod (4).

Description

Cold runner regulating valve for silica gel mold Technical Field The utility model relates to the technical field of silica gel forming dies, in particular to a cold runner regulating valve for a silica gel die. Background In the process of producing multi-cavity products by using a silica gel mold, due to the flow characteristic of a silica gel material, technological defects such as flash, glue shortage and the like often occur, so that weight and size differences exist in products molded by various cavities in the same mold. In the prior art, in order to solve the problems, the size of the mold runner is usually required to be repeatedly modified to adjust the sizing material distribution, however, the adjustment mode has obvious limitations that on one hand, the trimming of the mold runner depends on the experience of operators, the quantization standard is lacked, the adjustment precision is difficult to ensure, and on the other hand, each adjustment needs to carry out physical processing on the mold, so that the time and the labor are wasted, the mold structure is possibly damaged, and the production cost and the product rejection rate are increased. In addition, the prior art lacks a micro-regulation means for the flow of silica gel, and the dynamic balance of the filling process of each cavity cannot be realized, so that the reject ratio in the production process is high. Therefore, a technical scheme capable of realizing accurate and micro-adjustment of silica gel flow on the premise of not modifying a die structure is needed, so that the problem of uneven filling in multi-cavity die production is solved, and meanwhile, the process debugging cost and the product defect rate are reduced. Disclosure of utility model The utility model mainly solves the technical problem of providing a cold runner regulating valve for a silica gel mold, which can regulate the flow of silica gel entering a mold cavity and avoid or reduce flash or lack of the silica gel. In order to solve the technical problems, the technical scheme is that the cold runner regulating valve for the silica gel mold comprises a balance regulating valve, a connecting rod, a sliding rod, a regulating rod and a sealing valve needle, wherein the balance regulating valve, the connecting rod, the sliding rod and the regulating rod are arranged on a fixed die fixing plate, the balance regulating valve is in threaded fit with the fixed die fixing plate to regulate the position of the balance regulating valve on the fixed die fixing plate, one end of the connecting rod is connected with the balance regulating valve, the other end of the connecting rod is connected with the sliding rod, the sliding rod is connected with the regulating rod and in sliding fit, the sealing valve needle is arranged on the regulating rod and is arranged towards a cold runner nozzle head, the regulating rod and the sliding rod are mutually perpendicular, the balance regulating valve is used for screwing in or screwing back the connecting rod in sliding fit with the fixed die fixing plate, the connecting rod synchronously drives the sliding rod to move, a first push-pull inclined surface is arranged at one end of the sliding rod, which is close to the sliding rod, and a second inclined surface is arranged at one end of the sliding rod, which is close to the sliding rod, and the position of the sealing valve needle relative to the cold runner nozzle head is adjusted. Preferably, the balance regulating valve comprises an operation part, a middle column and a first connecting part which are sequentially connected, wherein external threads matched with the screw thread of the fixed die fixing plate are formed on the middle column, the first connecting part is in running fit with the connecting rod, and the operation part is positioned outside the fixed die fixing plate and is convenient for manually screwing the balance regulating valve to regulate the relative position of the balance regulating valve on the fixed die fixing plate. Preferably, the connecting rod is arranged in the fixed die fixing plate and is in sliding fit with the fixed die fixing plate, a first limiting rotating groove matched with the first connecting portion is formed in one end, close to the balance adjusting valve, of the connecting rod, the first limiting rotating groove is used for limiting the position of the first connecting portion, the first connecting portion is prevented from being separated from the connecting rod, and the first connecting portion is in rotating fit with the first limiting rotating groove. Preferably, one end of the sliding rod, which is close to the connecting rod, is provided with a second connecting part, and one end of the connecting rod, which is close to the sliding rod, is provided with a second limiting rotating groove, and the second limiting rotating groove is used for limiting the position of the second connecting part and preventing the second connecting part from s