Straight top casting and free-stripping structure

Abstract

The utility model relates to a kind of straight top pouring free strong release structure, including runner, straight top head rotatable part and straight top head part, the front side of the straight top head rotatable part is provided with runner, the lower end of the straight top head rotatable part is embedded and installed with straight top head part, the both sides of the straight top head rotatable part are installed with the fixed-distance screw of horizontal orientation straight top head part both sides, the straight top head rotatable part rotates around fixed-distance screw, the upper end face rear portion of the straight top head part is provided with the inclined surface portion of rear end downward inclination, the lower end of the straight top head part is installed with straight top rod, the straight top head part is provided with elastic piece, when straight top head rotatable part and straight top head part butt joint, the elastic piece is in compression state.The utility model has the characteristics of small space occupation, device is flexible, rotary type release sprue, can make sprue natural release, will not damage product etc.

Description

Technical Field

[0001] This utility model relates to the technical field of angled ejector structure for injection molds, and in particular to a direct ejector injection structure that eliminates the need for forced removal. Background Technology

[0002] In injection molds, traditional angled ejectors consist of three parts: the angled ejector head, the angled ejector rod, and the angled ejector seat. The angled ejector seat is mounted on the ejector plate or the base plate, and the ejector plate or the base plate will have corresponding cutouts to avoid this, which will affect the strength of the ejector plate or the base plate. The angled ejector rod is mounted on the moving platen. On the one hand, the machining of the angled hole is complicated, and on the other hand, the angled ejector also affects the layout of the water channels. The angled ejector head generally participates in the product molding. When the angled ejector is ejected, it will generate horizontal displacement. Sufficient space is required in the direction in which the angled ejector detaches. Therefore, the product structure at the angled ejector is very critical. If there are many features on the product, they may interfere with the angled ejector, so it is not suitable to use an angled ejector gate.

[0003] In the product molding process, the layout of the gate is very important. Often, due to structural limitations, some products cannot have their gates properly arranged, leading to repeated mold repairs. The gate defects are compensated for by improving other parts. The reasons for this situation are generally that the gate cannot be arranged using traditional methods, or there is insufficient space for the detachment of the angled top gate, or the product will be damaged when the gate is forcibly removed from the hard plastic. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a direct-top gate opening structure that eliminates the need for forced removal. It makes full use of the small space occupied by the direct-top block, the flexible device, and the rotary gate release, which allows the gate to be released naturally without damaging the product. Compared with the inclined gate, the direct-top is smaller in size, lower in cost, simpler to process, and more applicable.

[0005] The technical solution adopted by this utility model to solve its technical problem is: to provide a direct-feed pouring structure without forced removal, including a flow channel, a rotatable part of the direct-feed head, and a direct-feed head part. The front side of the rotatable part of the direct-feed head is provided with a flow channel. The direct-feed head part is embedded in the lower end of the rotatable part of the direct-feed head. The two sides of the rotatable part of the direct-feed head are equipped with horizontally spaced screws facing the two sides of the direct-feed head part. The rotatable part of the direct-feed head rotates around the spaced screws. The rear part of the upper end face of the direct-feed head part is provided with a sloped part with the rear end facing downward. The lower end of the direct-feed head part is equipped with a direct-feed rod. The direct-feed head part is provided with an elastic element. When the rotatable part of the direct-feed head and the direct-feed head part are connected, the elastic element is in a compressed state.

[0006] In this technical solution, a straight pusher is used as the main driving component to push the rotatable part of the straight pusher. A fixed-distance screw is installed so that the fixed-distance screw can act as a main shaft. This structure enables the rotatable part of the straight pusher to rotate. A straight pusher rod is installed to drive the straight pusher. An elastic element is installed so that the elastic element can push the rotatable part of the straight pusher to rotate. An inclined surface is provided so that the rotatable part of the straight pusher has a certain rotation space.

[0007] As a supplement to this technical solution, one end of the fixed-distance screw is provided with a threaded rod, and the threaded rod and the two sides of the straight head part form a threaded match. The other end of the fixed-distance screw adopts a shaft, and the shaft passes through the rotatable part of the straight head.

[0008] In this technical solution, a threaded rod is used to fix the straight head part, and by setting a shaft, the distance screw and the rotatable part of the straight head can rotate relative to each other.

[0009] As a supplement to this technical solution, the upper end of the straight push rod is inserted into the lower end of the straight push head part. Through the insertion installation, the straight push rod is ensured to run stably and vertically.

[0010] As a supplement to this technical solution, the elastic element is a glass ball screw, and the spring on the glass ball screw is used to control the ball to pop out upwards.

[0011] As a supplement to this technical solution, the upper rear end of the rotatable part of the straight head is provided with a first release slope that is inclined backward at the upper end, and the lower rear end of the rotatable part of the straight head is provided with a second release slope that is inclined backward at the upper end. The inclination angle of the first release slope is greater than the inclination angle of the second release slope.

[0012] A second release ramp is set to achieve first-stage release, and a first release ramp is set to achieve second-stage release.

[0013] Beneficial effects: This utility model relates to a direct-pump gate release structure that eliminates the need for forced removal. It uses a direct-pump head as the main driving component to push the rotatable part of the direct-pump head. A fixed-distance screw acts as the main shaft, enabling the rotatable part of the direct-pump head to rotate. A direct-pump rod drives the direct-pump head, and an elastic element pushes the rotatable part of the direct-pump head to rotate. An inclined section provides a certain amount of rotation space for the rotatable part of the direct-pump head. This design fully utilizes the small space occupied by the direct-pump block, its flexible design, and the rotary gate release mechanism, allowing the gate to detach naturally without damaging the product. Compared to inclined-pump gates, direct-pump gates are smaller, lower in cost, simpler to process, and more versatile. Attached Figure Description

[0014] Figure 1 This is the front view of this utility model;

[0015] Figure 2 This is the right view of the present invention;

[0016] Figure 3 This is a utility model Figure 1 Sectional view along the AA direction;

[0017] Figure 4 This is a utility model Figure 2 Sectional view along the BB direction;

[0018] Figure 5 This is a structural view of the present invention;

[0019] Figure 6 This is an exploded view of the structure of this utility model;

[0020] Figure 7 This is a flow chart of the operation of this utility model.

[0021] Diagram: 1. Flow channel, 2. Rotatable part of the straight head, 3. Elastic element, 4. Straight head part, 5. Spacing screw, 6. Straight rod, 7. Angled part, 8. Flow channel inlet, 9. Vertical straight channel, 10. Longitudinal insertion channel. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0023] The embodiments of this utility model relate to a direct-pump pouring structure that avoids forced removal, such as... Figure 1 — Figure 6 As shown, it includes a flow channel 1, a rotatable straight head portion 2, and a straight head portion 4. The flow channel 1 is provided on the front side of the rotatable straight head portion 2. The straight head portion 4 is embedded in the lower end of the rotatable straight head portion 2. The two sides of the rotatable straight head portion 2 are equipped with horizontally spaced screws 5 facing the two sides of the straight head portion 4. The rotatable straight head portion 2 rotates around the spaced screws 5. The rear part of the upper end face of the straight head portion 4 is provided with a sloped part 7 with the rear end facing downward. The straight head portion 4 is equipped with a straight push rod 6 at the lower end. The straight head portion 4 is provided with an elastic element 3. When the rotatable straight head portion 2 and the straight head portion 4 are connected, the elastic element 3 is in a compressed state.

[0024] In this technical solution, a straight pusher part 4 is set as the main driving component to push the rotatable straight pusher part 2. By installing a fixed-distance screw 5, the fixed-distance screw 5 can serve as a main shaft. This structure enables the rotatable straight pusher part 2 to rotate. A straight pusher rod 6 is installed to drive the straight pusher part 4. An elastic element 3 is installed so that the elastic element 3 can push the rotatable straight pusher part 2 to rotate. By setting an inclined part 7, the rotatable straight pusher part 2 has a certain rotation space.

[0025] As a supplement to this technical solution, one end of the fixed-distance screw 5 is provided with a threaded rod, and the threaded rod and the two sides of the straight head part 4 form a threaded match. The other end of the fixed-distance screw 5 adopts a shaft, and the shaft passes through the rotatable part 2 of the straight head.

[0026] In this technical solution, a threaded rod is used to fix the straight head part 4, and by setting a shaft, the distance screw 5 and the rotatable part 2 of the straight head can rotate relative to each other.

[0027] As a supplement to this technical solution, the upper end of the straight push rod 6 is inserted into the lower end of the straight push head part 4. Through the insertion installation, the straight push rod 6 is ensured to run stably and vertically.

[0028] As a supplement to this technical solution, the elastic element 3 is a glass ball screw, and the spring on the glass ball screw is used to control the ball to pop up upwards.

[0029] As a supplement to this technical solution, the upper rear end of the rotatable part 2 of the straight head is provided with a first release slope 8 with the upper end tilted backward, and the lower rear end of the rotatable part 2 of the straight head is provided with a second release slope 9 with the upper end tilted backward. The tilt angle of the first release slope 8 is greater than the tilt angle of the second release slope 9.

[0030] The second release ramp 9 is set to achieve the first-stage release, and the first release ramp 8 is set to achieve the second-stage release.

[0031] Example

[0032] like Figure 7As shown, the straight ejector rod 6 first moves upward, pushing the straight ejector head part 4 and the rotatable straight ejector head part 2 upward, allowing the straight ejector head part 4 and the rotatable straight ejector head part 2 to disengage from the mold mounting slot. At this time, the elastic element 3 provides a secondary thrust, pushing the rotatable straight ejector head part 2, so that the rotatable straight ejector head part 2 can rotate around the fixed distance screw 5. The first disengagement ramp 8 will abut against the right edge of the mounting slot, thereby causing the flow channel 1 and the rotatable straight ejector head part 2 to initially disengage. Then, the straight ejector rod 6 is pushed again, and the straight ejector rod 6 completely pushes the straight ejector head part 4 and the rotatable straight ejector head part 2 out of the mounting slot. The second disengagement ramp 9 will abut against the right edge of the mounting slot, and the rotatable straight ejector head part 2 can completely detach from the flow channel 1.

Claims

1. A direct-pump casting structure that avoids forced removal, characterized in that: The device includes a flow channel (1), a rotatable straight head part (2), and a straight head part (4). The rotatable straight head part (2) has a flow channel (1) on its front side. The straight head part (4) is embedded in the lower end of the rotatable straight head part (2). The straight head part (2) has horizontally spaced screws (5) on both sides of the rotatable straight head part (2) facing the straight head part (4). The rotatable straight head part (2) rotates around the spaced screws (5). The upper end face of the straight head part (4) has a sloped part (7) with the rear end facing downward. The straight head part (4) has a straight rod (6) installed in the lower end. The straight head part (4) has an elastic element (3). When the rotatable straight head part (2) and the straight head part (4) are connected, the elastic element (3) is in a compressed state.

2. The direct-pump casting structure for preventing forced removal according to claim 1, characterized in that: One end of the fixed-distance screw (5) is provided with a threaded rod, and the threaded rod and the two sides of the straight head part (4) form a threaded match. The other end of the fixed-distance screw (5) is a shaft, which passes through the rotatable part (2) of the straight head.

3. The direct-pump casting structure for preventing forced removal according to claim 1, characterized in that: The upper end of the straight push rod (6) is inserted into the lower end of the straight push head part (4).

4. The direct-pump casting structure for preventing forced removal according to claim 1, characterized in that: The elastic element (3) is a glass ball screw.

5. The direct-pump casting structure for preventing forced removal according to claim 1, characterized in that: The upper rear end of the rotatable part (2) of the straight head is provided with a first release slope (8) that is inclined backward at the upper end, and the lower rear end of the rotatable part (2) of the straight head is provided with a second release slope (9) that is inclined backward at the upper end. The inclination angle of the first release slope (8) is greater than the inclination angle of the second release slope (9).

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