Demolding insert mounting mechanism

Abstract

The utility model relates to the technical field of mold structures, in particular to a demolding insert mounting mechanism which comprises an oil cylinder, a lateral pull block, a lower butt joint block, an upward moving sliding block and a sliding block reset shifting assembly, lateral forming cavities are formed in the front side faces of the lower butt joint block and the upward moving sliding block, and a top forming cavity is formed in the upper end face of the upward moving sliding block. The rear side face of the lower butt joint block is connected with the lateral pull block, a lower sliding face inclining towards the lower portion of the front side is arranged on the upper end face of the lower butt joint block, an upper sliding face matched with the lower sliding face is arranged on the lower end face of the upper sliding block, and the upper sliding face and the lower sliding face are in sliding connection. The lower end face of the upward moving sliding block is connected with a sliding insertion block inserted into a sliding insertion hole of the lower butt joint block, the output end of the oil cylinder is connected with a lateral pull block, and a sliding block reset shifting assembly capable of achieving upward moving reset of the upward moving sliding block is installed below the moving direction of the lateral pull block. The mold has the advantages of simple structure, good demolding effect, high demolding efficiency, convenience in insert installation, bidirectional demolding of the sliding block and the like.

Description

Technical Field

[0001] This utility model relates to the field of mold structure technology, specifically a demolding insert installation mechanism with simple structure, good demolding effect, high demolding efficiency, easy insert installation, and bidirectional demolding of the slider. Background Technology

[0002] As is well known, in the injection molding process, inserts need to be integrally molded with the molded product. This requires insert mounting positions on the mold. For existing products, especially circuit component flanges, the back of the structure has a groove, and a nut needs to be inserted into the molding plate on the same side of the groove. For the nut insert, it needs to be installed on the mold in advance, and injection molding can be performed after mold closing to integrally mold the nut with the product. Moreover, the demolding process needs to consider the demolding of the groove position. The groove position needs to be demolded first, and then the side demolding can be performed. At the same time, the demolding of the groove position also needs to be considered. After molding, the nut insert needs to be installed before the mold is closed again. However, existing structures generally install the nut insert later and do not have a structure that is integrally molded with the injection molded product. Therefore, two modules are needed for groove demolding and side demolding. One module can realize side demolding and the other module can realize vertical demolding of the groove. Demolding in multiple directions requires multiple structures to realize the demolding action. Existing demolding structures have problems such as complex structure, poor demolding effect, low demolding efficiency, and inability to realize bidirectional demolding at the same time. Moreover, it is also necessary to ensure that the insert can be easily installed after demolding. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a demolding insert installation mechanism that is simple in structure, has good demolding effect, high demolding efficiency, is easy to install inserts, and allows for bidirectional demolding of the slider.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A demolding insert installation mechanism is characterized in that the installation mechanism includes a hydraulic cylinder, a lateral pull block, a lower connecting block, an upper sliding block, and a sliding block reset actuation assembly. The front sides of the lower connecting block and the upper sliding block are provided with lateral forming cavities, the upper end face of the upper sliding block is provided with a top forming cavity, the rear side of the lower connecting block is connected to the lateral pull block, the upper end face of the lower connecting block is provided with a sliding sliding surface inclined downwards towards the front, the lower end face of the upper sliding block is provided with an upper sliding surface that cooperates with the sliding sliding surface, the upper sliding surface and the lower sliding surface are slidably connected, the lower end face of the upper sliding block is connected to a sliding insert block inserted into the sliding insertion hole of the lower connecting block, the output end of the hydraulic cylinder is connected to the lateral pull block, and a sliding block reset actuation assembly capable of realizing the upward reset of the upper sliding block is installed below the lateral pull block in the direction of movement.

[0006] The slider reset actuation assembly of this utility model includes a connecting seat, a lever, a connecting rod, a follower slider, and a follower slide block. The connecting seat is hinged to the lower end of the lever, the middle part of the lever is hinged to the front end of the connecting rod, and the rear end of the connecting rod is hinged to the follower slider. The follower slider and the follower slide block are slidably connected in the front-back direction. A pushing protrusion is provided above the follower slider. When the hydraulic cylinder pulls the lateral pull block backward, the top of the lever passes over the lateral pull block and extends into the sliding insertion hole of the lower connecting block, moving the slider upward to the front side of the sliding insertion block. The lateral pull block continues to move backward. After the lateral pull block contacts the pushing protrusion above the follower slider, it pulls the follower slider backward. The follower slider drives the lever to swing backward, thereby pulling the sliding insertion block back to its original position.

[0007] The follower slider of this utility model has a compression hole on its rear side, and a compression spring is placed in the compression hole. The front end of the compression spring extends into the compression hole, and the rear side of the compression spring contacts the cylinder seat of the fixed oil cylinder. Through the action of the compression spring, the follower slider is always in the front end position of the follower slide, so that the lever tilts forward and ensures that it can pass over the side pull block and enter the sliding insertion hole of the lower connecting block during the backward movement of the side pull block.

[0008] The rear side of the upward sliding block of this utility model is provided with a lower holding hole with the same inclination angle as the downward sliding surface, and the front side of the lateral pull block is provided with an upper holding hole with the same inclination angle as the lower holding hole. The lower holding hole and the upper holding hole are built into a push spring, and the downward movement of the upward sliding block is assisted by the push spring.

[0009] The sliding plug of this utility model has a sliding protrusion on its side and a sliding groove on its side that cooperates with the sliding protrusion. The sliding protrusion and the sliding groove are slidably connected.

[0010] The lateral pull block of this utility model has a shovel-fitting surface on its rear side, which is positioned to cooperate with the shovel chicken, and the shovel chicken drives the lateral pull block to further connect.

[0011] This utility model, due to the above-mentioned structure, has the advantages of simple structure, good demolding effect, high demolding efficiency, easy installation of inserts, and bidirectional demolding of slider. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 yes Figure 1 A schematic diagram of the structure without upper and lower molds.

[0014] Figure 3 yes Figure 1 A schematic diagram of the upper and middle sliding block.

[0015] Figure 4yes Figure 1 A schematic diagram of the structure of the lower and middle connecting blocks.

[0016] Figure 5 yes Figure 1 A schematic diagram of the structure of the follower slider. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] As shown in the attached figure, a demolding insert installation mechanism is characterized in that the installation mechanism includes a hydraulic cylinder 1, a lateral pull block 2, a lower connecting block 3, an upper sliding block 4, and a sliding block reset actuating assembly. The front sides of the lower connecting block 3 and the upper sliding block are provided with lateral forming cavities, the upper end face of the upper sliding block is provided with a top forming cavity, the rear side of the lower connecting block 3 is connected to the lateral pull block 2, the upper end face of the lower connecting block 3 is provided with a sliding sliding surface 5 that slopes downwards towards the front, the lower end face of the upper sliding block 4 is provided with an upper sliding surface 6 that cooperates with the sliding sliding surface 5, the upper sliding surface 6 and the sliding sliding surface 5 are slidably connected, the lower end face of the upper sliding block 4 is connected to a sliding insert 8 that is inserted into the sliding insertion hole 7 of the lower connecting block 3, the output end of the hydraulic cylinder 1 is connected to the lateral pull block 2, and a sliding block reset actuating assembly that can realize the upward reset of the upper sliding block 4 is installed below the moving direction of the lateral pull block 2. The hydraulic cylinder 1 is fixed on the cylinder seat 26.

[0019] Furthermore, the slider reset actuation assembly includes a connecting seat 12, a lever 13, a connecting rod 14, a follower slider 15, and a follower slide block 16. The connecting seat 12 is hinged to the lower end of the lever 13, the middle part of the lever 13 is hinged to the front end of the connecting rod 14, and the rear end of the connecting rod 14 is hinged to the follower slider 15. The follower slider 15 and the follower slide block 16 are slidably connected in the front-rear direction. A pushing protrusion 24 is provided above the follower slider 15. Cylinder 1 pulls the lateral pull block 2 backward. The top of the lever 13 passes the lateral pull block 2 and extends into the sliding insertion hole 7 of the lower connecting block 3, moving the slider 4 to the front of the sliding insertion block 8. The lateral pull block 2 continues to move backward. After the lateral pull block 2 contacts the pushing protrusion 24 above the follower slider 15, it pulls the follower slider 15 backward. The follower slider 15 drives the lever 13 to swing backward, thereby pulling the sliding insertion block 8 backward to reset it, and finally pulling the upward slider 4 backward.

[0020] Furthermore, the follower slider 15 is provided with a compression hole 25 on its rear side. A compression spring is placed in the compression hole 25, and the front end of the compression spring extends into the compression hole 25. The rear side of the compression spring contacts the cylinder seat 26 of the fixed oil cylinder. Through the action of the compression spring, the follower slider 15 is always in the front end position of the follower slide block 16, so that the lever 13 tilts forward, ensuring that it can pass over the side pull block 2 and enter the sliding insertion hole 7 of the lower connecting block 3 during the process of the side pull block moving backward.

[0021] Furthermore, the rear side of the upward sliding block 4 is provided with a lower holding hole 9 with the same inclination angle as the downward sliding surface 5, and the front side of the lateral pull block 2 is provided with an upper holding hole 10 corresponding to the position of the lower holding hole 9 and with the same inclination angle. The lower holding hole 9 and the upper holding hole 10 are built into the push spring 11, and the push spring 11 assists the downward movement of the upward sliding block 4.

[0022] Furthermore, the sliding plug 8 has a sliding protrusion 17 on its side and a sliding groove 18 on its side that cooperates with the sliding protrusion 17. The sliding protrusion 17 and the sliding groove 18 are slidably connected.

[0023] Furthermore, the rear side of the lateral pull block 2 is provided with a shovel contact surface 19, which is positioned to cooperate with the shovel chicken 20, thereby driving the lateral pull block 2 to further engage.

[0024] The lower end of the aforementioned lateral pull block 2 is provided with an anti-wear plate 27, which is fixed on the lower template.

[0025] This utility model is applicable to flange products of circuit components. The demolding insert installation mechanism is installed on a mold. The mold has an upper mold 22 and a lower mold 23. The side of the lower mold 23 has a lateral forming groove for installing the demolding insert installation mechanism. The connecting seat 12 and the follower slider 15 are respectively installed on the lower mold 23. The lower end face of the upper mold 22, the upper end face of the lower mold 23, and the side of the lateral forming groove of the lower mold 23 are respectively provided with forming cavities. The forming cavities of the lower end face of the upper mold 22, the upper end face of the lower mold 23, and the side of the lateral forming groove of the lower mold 23, together with the lateral forming cavity on the front side of the lower connecting block 3 and the upper sliding block 4, and the top forming cavity on the upper end face of the upper sliding block 4, form the product injection cavity.

[0026] After injection molding, the upper mold 22 moves upward to demold, and the hydraulic cylinder 1 pulls the lower connecting block 3 backward. During the backward movement of the lower connecting block 3, the upper sliding block 4 slides downward along the upper sliding surface 6 and the lower sliding surface 5 with the assistance of the push spring 11. After the protrusion on the upper sliding block 4 disengages from the groove of the molded product, the lower sliding block and the lower connecting block 3 move backward as a whole, thereby achieving lateral demolding of the product. After demolding, because the upper sliding block 4 is still extended from the lower connecting block under the action of the push spring 11, it affects the installation of the nut insert 21.

[0027] Therefore, during the process of the hydraulic cylinder driving the sliding block and the lower docking block 3 to move backward as a whole, due to the action of the compression spring, the lever 13 is always in a tilted state. The lever 13 passes over the lateral pull block 2 and enters the sliding insertion hole 7 of the lower docking block 3, and abuts against the front side of the sliding insert 8 inserted into the sliding insertion hole 7. The hydraulic cylinder continues to drive the lateral pull block and the lower docking block to move backward. When the lateral pull block contacts the pushing protrusion 24 above the follower slider 15, it pulls the follower slider 15 backward. The follower slider 15 drives the lever 13 to swing backward and upward, thereby pulling the sliding insert 8 back to its original position. Finally, the upper slider 4 is pulled backward, exposing the installation position of the insert on the front side of the lower docking block. The nut insert 21 is then installed on the lower docking block 3. After installation, then through... Through the ejector pin holes provided on the lower mold 23 in the prior art, the ejector pins push the molded product upwards, thereby completing the demolding of the product. After demolding, the mold can be closed again. During the mold closing process, the hydraulic cylinder moves forward, the lateral pull block 2 and the lower connecting block 3 move forward, and the follower slider also moves forward under the action of the compression spring, pushing the lever to tilt. Finally, the lever 13 disengages from the lateral pull block 2, thereby completing the installation of the nut insert 21 for the next mold closing and closing the mold. The upper mold 22, lower mold 23, lower connecting block 3 and upper sliding slider 4 close the mold for the next injection molding. Due to the above structure, this utility model has the advantages of simple structure, good demolding effect, high demolding efficiency, easy installation of insert 21, and bidirectional demolding of the slider.

Claims

1. A demolding insert mounting mechanism characterized by The installation mechanism comprises a cylinder, a lateral pulling block, a lower butt joint block, an upward sliding block and a sliding block reset pushing assembly. The front side of the lower butt joint block and the upward sliding block is provided with a lateral forming cavity. The upper end surface of the upward sliding block is provided with a top forming cavity. The rear side of the lower butt joint block is connected with the lateral pulling block. The upper end surface of the lower butt joint block is provided with a lower sliding surface which is inclined towards the lower front side. The lower end surface of the upward sliding block is provided with an upper sliding surface which is matched with the lower sliding surface. The upper sliding surface and the lower sliding surface are slidingly connected. The lower end surface of the upward sliding block is connected with a sliding insertion block which is inserted into a sliding insertion hole of the lower butt joint block. The output end of the cylinder is connected with the lateral pulling block. The sliding block reset pushing assembly which can realize the upward reset of the upward sliding block is installed below the moving direction of the lateral pulling block.

2. A demolding insert mounting mechanism according to claim 1, characterized in that The sliding block reset pushing assembly comprises a connecting seat, a pushing rod, a connecting rod, a following sliding block and a following sliding seat. The connecting seat is hingedly connected with the lower end of the pushing rod. The middle part of the pushing rod is hingedly connected with the front end of the connecting rod. The rear end of the connecting rod is hingedly connected with the following sliding block. The following sliding block is slidingly connected with the following sliding seat in the front-rear direction. The upper side of the following sliding block is provided with a pushing protrusion. When the cylinder pulls the lateral pulling block to move backward, the top end of the pushing rod is stretched into the front side of the sliding insertion block of the upward sliding block which is inserted into the sliding insertion hole of the lower butt joint block. When the lateral pulling block continues to move backward, the lateral pulling block contacts the pushing protrusion on the upper side of the following sliding block and pulls the following sliding block to move towards the rear side. The following sliding block drives the pushing rod to swing towards the rear side and then pulls the sliding insertion block to reset.

3. The ejector insert mounting mechanism of claim 2 wherein The rear side of the following sliding block is provided with an extrusion hole. An extrusion spring is placed in the extrusion hole. The front end of the extrusion spring is stretched into the extrusion hole. The rear side of the extrusion spring is in contact with the cylinder seat of the fixed cylinder. Through the action of the extrusion spring, the following sliding block is always located at the front end position of the following sliding seat. The pushing rod is tilted towards the front side. It is ensured that the pushing rod can pass through the lateral pulling block and enter the sliding insertion hole of the lower butt joint block during the backward movement of the lateral pulling block.

4. The ejector insert mounting mechanism of claim 1 wherein The rear side of the upward sliding block is provided with a lower containing hole which has the same inclination angle as the lower sliding surface. The front side of the lateral pulling block is provided with an upper containing hole which has the same inclination angle as the lower containing hole and is located in correspondence with the lower containing hole. The lower containing hole and the upper containing hole are placed with a pushing spring. The downward movement of the upward sliding block is assisted by the pushing spring.

5. The ejector insert mounting mechanism of claim 1 wherein The side surface of the sliding insertion block is provided with a sliding protrusion. The side surface of the sliding insertion hole is provided with a sliding groove which is matched with the sliding protrusion. The sliding protrusion and the sliding groove are slidingly connected.

6. The ejector insert mounting mechanism of claim 1 wherein The rear side of the lateral pulling block is provided with a shovel contact surface. The shovel contact surface is located in correspondence with the shovel. The shovel drives the further butt joint of the lateral pulling block.

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