A hot runner mold gating structure

Abstract

The utility model discloses a hot runner mold pouring structure relates to hot runner mold pouring technical field, including hot runner board, the middle installation of hot runner board has the feeding seat, the inside installation of hot runner board has the shunt block, be equipped with the shunt groove of communication with the feeding seat on the shunt block, every shunt mouth department of shunt groove is equipped with a pouring pipe, and the pouring pipe is under the locking state, and the driving block will move to the limiting hole position along the avoidance hole, and fixed beads are pressed into the limiting groove by the driving block at this moment, thereby form stable location to the pouring pipe, when unlocking, only need to pull the sliding sleeve, and the sliding sleeve will drive the driving block synchronous movement, and the driving block removes the extrusion to fixed beads in this process, and the avoidance hole provides the displacement space of sufficiency for fixed beads simultaneously, makes fixed beads no longer exert pressure to the limiting groove, and finally realizes the quick unlocking of pouring pipe, compared with traditional screw fixed mode, greatly simplifies the operation process, and it is more convenient for the maintenance and maintenance of pouring pipe subsequently.

Description

Technical Field

[0001] This utility model relates to the field of hot runner mold casting technology, specifically a hot runner mold casting structure. Background Technology

[0002] Hot runner mold casting refers to a casting technology that uses a heating system to maintain the molten state of the plastic in the runner, avoiding the solidification of the cold runner. The molten plastic is injected into the hot runner system through the injection molding machine to maintain its fluidity, and is directly injected into the mold cavity through the hot nozzle. There is no need to clean the solidified material in the runner, which has the advantages of high material utilization and high processing precision.

[0003] For example, the patent with authorization announcement number CN222201500U describes a new type of hot runner mold casting structure. Through the cooperation of the hot runner body, nozzle, limiting ring, fixing block, limiting groove, mounting plate, adjusting rod, movable block, sliding plate, limiting block and valve needle, the limiting ring at the top of the nozzle is placed in the groove at the bottom of the hot runner body. At the same time, the fixing block, limiting groove and limiting block on both sides of the nozzle are aligned. Rotating the adjusting rod drives the movable block, sliding plate and limiting block on the adjusting rod to move horizontally, so that the limiting block is locked into the limiting groove, quickly limiting the fixing block and the nozzle. This structure facilitates the installation and use of the new type of runner mold casting structure and improves its maintenance efficiency.

[0004] The existing technology has the following problems; In existing technology, the nozzle is installed by rotating the adjusting rods on both sides. However, in actual operation, it is difficult to synchronize the rotation of the adjusting rods, which can easily lead to uneven force on both sides of the nozzle, causing equipment damage and posing a risk of glue leakage.

[0005] Based on this, a hot runner mold casting structure is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this invention is to provide a hot runner mold casting structure to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A hot runner mold casting structure includes a hot runner plate, a feed seat installed in the middle of the hot runner plate, a flow divider block installed inside the hot runner plate, a flow divider groove on the flow divider block communicating with the feed seat, a casting pipe at each flow divider port of the flow divider groove, a heating wire on the casting pipe, a needle valve inside the casting pipe, a spiral block on the surface of the needle valve, a cylinder installed on each side of the feed seat, the cylinder driving a transmission rod to move, the transmission rod passing through the flow divider block, the transmission rod connecting to the needle valve, a quick-release mechanism on the surface of the hot runner plate, the quick-release mechanism including a fixing sleeve, a plurality of fixing sleeves on the surface of the hot runner plate, the fixing sleeve communicating with the flow divider groove, and the end of the fixing sleeve connecting to the casting pipe.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative: the surface of the fixed sleeve is provided with a groove, and a sliding block is slidably disposed in the groove, the sliding block being fixedly connected to the sleeve.

[0009] In one alternative: the sliding sleeve has a drive block inside, and the drive block has a clearance hole.

[0010] In one alternative: a fixing bead is provided on the side of the driving block, a limiting hole is provided on the fixing sleeve, a limiting groove is provided on the surface of the casting pipe, and the fixing bead partially passes through the limiting hole and is inserted into the limiting groove to limit the casting pipe.

[0011] In one alternative: the driving block compresses the fixed bead to move, one end of the spring is connected to the surface of the driving block, and the other end of the spring is fixedly connected to the surface of the fixed sleeve.

[0012] In one alternative: the surface of the fixing sleeve is provided with a sealing sleeve.

[0013] In one alternative: the surface of the drive block is provided with a guide groove.

[0014] In one alternative: the needle valve and the transmission rod are detachably connected via a threaded structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In the locked state, the drive block moves along the clearance hole to the limit hole position of the casting pipe. At this time, the fixing bead is squeezed into the limit groove by the drive block, thus forming a stable limit on the casting pipe. When unlocking, simply pull the sliding sleeve, and the sliding sleeve will drive the drive block to move synchronously. During this process, the drive block releases the pressure on the fixing bead, and the clearance hole provides sufficient displacement space for the fixing bead, so that the fixing bead no longer applies pressure to the limit groove, and finally realizes the quick unlocking of the casting pipe. Compared with the traditional screw fixing method, the operation process is greatly simplified, and it is easier to inspect and maintain the casting pipe in the future.

[0016] 2. This utility model locks the casting pipe with a fixed sleeve and a sliding sleeve. The sliding sleeve limits the casting pipe from the side, strengthening the structural strength. The casting pipe is fixed by several fixing beads, which provides good sealing and prevents glue leakage. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the structure of the diverter block of this utility model.

[0019] Figure 3 for Figure 2 A magnified view of a portion at point A shown.

[0020] Figure 4 This is a schematic diagram of the casting pipe of this utility model.

[0021] Figure 5 This is a schematic diagram of the fixing sleeve of this utility model.

[0022] Figure reference numerals: 101, hot runner plate; 102, feed seat; 103, flow divider block; 104, flow divider groove; 105, cylinder; 106, drive rod; 107, needle valve; 108, casting pipe; 201, fixed sleeve; 202, sliding sleeve; 203, sliding block; 204, sprue; 205, drive block; 206, clearance hole; 207, spring; 208, fixing bead; 301, spiral block; 302, heating wire. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] In one embodiment, such as Figures 1-3As shown, a hot runner mold casting structure includes a hot runner plate 101, a feed seat 102 installed in the middle of the hot runner plate 101, a flow divider block 103 installed inside the hot runner plate 101, a flow divider groove 104 provided on the flow divider block 103 communicating with the feed seat 102, a casting pipe 108 provided at each flow divider opening of the flow divider groove 104, a heating wire 302 provided on the casting pipe 108, and a needle valve 107 provided inside the casting pipe 108. The needle valve 107 has a spiral block 301 on its surface. A cylinder 105 is installed on each side of the feed seat 102. The cylinder 105 drives the transmission rod 106 to move. The transmission rod 106 passes through the diverter block 103 and is connected to the needle valve 107. The hot runner plate 101 has a quick-release mechanism on its surface. The quick-release mechanism includes a fixing sleeve 201. Several fixing sleeves 201 are provided on the surface of the hot runner plate 101, and the fixing sleeves 201 are connected to the diverter block 103. The hot runner plate 101 is installed on the mold surface by bolts, and the hot runner plate 101 is connected to the mold surface by the end of the fixed sleeve 201. The hot runner plate 101 extends into the mold and the gate of the hot runner plate 108 is connected to the plastic groove. The installation is completed. The molten raw material is transported to the feed seat 102 and the feed seat 102 injects the raw material into the diversion channel 104. The diversion channel 104 performs diversion operation. The diverted raw material enters the corresponding hot runner plate 108. The transmission rod 106 is driven by the cylinder 105 to move. The transmission rod 106 drives the needle valve 107 to open the hot runner plate 108. Multiple hot runner plates 108 inject raw material into the plastic cavity at the same time. During this process, the heating wire 302 continuously heats the raw material to prevent the raw material from cooling down and reducing its fluidity. The heating path is extended by setting the spiral block 301 so that the heating wire 302 heats the raw material more evenly and improves the heating effect. After the casting is completed, the needle valve 107 closes the hot runner plate 108 and the mold is opened to take out the casting part. In one embodiment, such as Figure 3 and Figure 4 As shown, the surface of the fixed sleeve 201 is provided with a groove 204, and a sliding block 203 is slidably provided in the groove 204. The sliding block 203 is fixedly connected to the sliding sleeve 202. The fixed sleeve 201 connects to the pouring pipe 108 to provide conditions for the pouring operation. The groove 204 on the surface of the fixed sleeve 201 provides sliding conditions for the sliding block 203. The sliding of the sliding block 203 and the sliding sleeve 202 provides conditions for the disassembly and assembly of the pouring pipe 108. In one embodiment, such as Figure 3 and Figure 4 As shown, the sliding sleeve 202 is provided with a driving block 205 inside, and the driving block 205 is provided with a clearance hole 206. When the sliding sleeve 202 moves, the driving block 205 moves with the sliding sleeve 202. The driving block 205 provides conditions for locking and unlocking the pouring pipe 108. In one embodiment, such as Figure 4 and Figure 5 As shown, the driving block 205 has a fixing bead 208 on its side, the fixing sleeve 201 has a limiting hole, and the surface of the casting tube 108 has a limiting groove. The fixing bead 208 partially passes through the limiting hole and is inserted into the limiting groove to limit the casting tube 108. The driving block 205 pushes the clearance hole 206 to the position of the limiting hole, and the fixing bead 208 is inserted into the limiting groove to limit the casting tube 108. Pulling the sliding sleeve 202 causes the driving block 205 to move. At this time, the driving block 205 does not squeeze the fixing bead 208. The clearance hole 206 provides displacement space for the fixing bead 208. The fixing bead 208 does not apply pressure to the limiting groove, thus realizing the quick unlocking of the casting tube 108. Compared with the traditional screw fixing, the casting tube 108 can be disassembled and assembled by pulling the sliding sleeve 202, which is convenient for the inspection and maintenance of the casting tube 108. In one embodiment, such as Figure 4 and Figure 5 As shown, the driving block 205 presses the fixed bead 208 to move. One end of the spring 207 is connected to the surface of the driving block 205, and the other end of the spring 207 is fixedly connected to the surface of the fixed sleeve 201. When the sliding sleeve 202 is released, the spring 207 drives the driving block 205 to reset. During the reset process, the driving block 205 presses the fixed bead 208 to the position of the limiting hole. The sliding sleeve 202 resets with the driving block 205, thus completing the locking operation of the pouring pipe 108. The above embodiment discloses a hot runner mold casting structure, wherein the hot runner plate 101 is installed to the mold surface by bolts, the casting pipe 108 extends into the mold, and the gate of the casting pipe 108 is connected to the plastic cavity, thus completing the installation. The molten raw material is transported to the feed seat 102, which injects the raw material into the diversion channel 104. The diversion channel 104 performs a diversion operation, and the diverted raw material enters the corresponding casting pipe 108. The cylinder 105 drives the transmission rod 106 to move, and the transmission rod 106 drives the needle valve 107 to move and open the casting pipe 108. Multiple casting pipes 108 simultaneously inject raw material into the plastic cavity. During this process, the heating wire 302 continuously heats the material to prevent it from cooling down and reducing its fluidity. The heating wire 302 extends the heating wire by setting a spiral block 301. The hot path improves the heating effect. After casting, the needle valve 107 closes the casting tube 108, and the mold is opened to take out the casting part. However, when the casting tube 108 needs to be inspected, the sliding sleeve 202 is pulled. The sliding sleeve 202 drives the drive block 205 to move. At this time, the drive block 205 does not squeeze the fixed bead 208. The clearance hole 206 provides displacement space for the fixed bead 208. The fixed bead 208 does not apply pressure to the limit groove, realizing the quick unlocking of the casting tube 108. When the casting tube 108 is installed, the casting tube 108 is connected to the fixed sleeve 201, the sliding sleeve 202 is released, and the spring 207 drives the drive block 205 to reset. During the reset process, the drive block 205 squeezes the fixed bead 208 to the limit hole position. The sliding sleeve 202 follows the drive block 205 to reset, completing the locking operation of the casting tube 108.

[0025] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A hot runner mold casting structure, comprising a hot runner plate (101), wherein a feed seat (102) is installed in the middle of the hot runner plate (101), a flow divider block (103) is installed inside the hot runner plate (101), the flow divider block (103) is provided with a flow divider groove (104) communicating with the feed seat (102), each flow divider port of the flow divider groove (104) is provided with a casting pipe (108), the casting pipe (108) is provided with a heating wire (302), the casting pipe (108) is provided with a needle valve (107) inside, the surface of the needle valve (107) is provided with a spiral block (301), a cylinder (105) is respectively installed on both sides of the feed seat (102), the cylinder (105) drives a transmission rod (106) to move, the transmission rod (106) passes through the flow divider block (103), and the transmission rod (106) is connected to the needle valve (107), characterized in that, The hot runner plate (101) is provided with a quick-release mechanism, which includes a fixing sleeve (201). The hot runner plate (101) is provided with a plurality of fixing sleeves (201). The fixing sleeves (201) are connected to the flow channel (104), and the end of the fixing sleeve (201) is connected to the casting pipe (108).

2. The hot runner mold casting structure according to claim 1, characterized in that, The surface of the fixed sleeve (201) is provided with a groove (204), and a sliding block (203) is slidably provided in the groove (204), and the sliding block (203) is fixedly connected to the sliding sleeve (202).

3. The hot runner mold casting structure according to claim 2, characterized in that, The sliding sleeve (202) has a drive block (205) inside, and the drive block (205) has a clearance hole (206).

4. The hot runner mold casting structure according to claim 3, characterized in that, The driving block (205) has a fixing bead (208) on its side, the fixing sleeve (201) has a limiting hole, the surface of the casting pipe (108) has a limiting groove, and the fixing bead (208) partially passes through the limiting hole and is inserted into the limiting groove to limit the casting pipe (108).

5. A hot runner mold casting structure according to claim 3, characterized in that, The driving block (205) presses the fixed bead (208) to move. One end of the spring (207) is connected to the surface of the driving block (205), and the other end of the spring (207) is fixedly connected to the surface of the fixed sleeve (201).

6. The hot runner mold casting structure according to claim 1, characterized in that, The surface of the fixing sleeve (201) is provided with a sealing sleeve.

7. A hot runner mold casting structure according to claim 3, characterized in that, The surface of the drive block (205) is provided with a guide groove.

8. The hot runner mold casting structure according to claim 1, characterized in that, The needle valve (107) and the transmission rod (106) are detachably connected by a threaded structure.

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