Slide block mold structure capable of preventing product adhesion

Abstract

The utility model relates to the field of injection molds, and discloses a sliding block mold structure capable of preventing products from sticking, which structurally comprises a male mold core, a female mold core, an upper mold frame, a lower mold frame, a water gap plate and a cover plate, the upper mold frame and the lower mold frame form a mold frame used for supporting parts on a mold, and the water gap plate covers the mold frame and is used for breaking a water gap. The cover plate covers the top of the stripper plate and is used for assisting in mold opening, the sliding block ejector pin assembly is divided into an ejector pin part and a sliding block part, the ejector pin part is arranged in the sliding block part and is used for preventing a product from uncontrolled movement, and the sliding block part is arranged in the mold frame and is used for preventing the product from moving. And a shoveling machine is further arranged in the structure, and the shoveling machine is used for controlling the ejector pin and the sliding block part to move in sequence.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to a slider mold structure that prevents products from sticking Background Art

[0002] In the actual use of molds, demoulding of T-shaped products has always been a difficult application scenario in the mold application field. The specific reason is that this T-shaped product structure requires a side slider structure to intervene in the demoulding process. (Refer to Figure 8 ) The contact between the slider and the product is not like the normal upper and lower mold opening force balance, because the adsorption area where the slider contacts the product is relatively large, and the tensile stress generated is large, while the other end of the slider is not subjected to force. This causes the lower end of the product to easily stick to the slider when the mold is opened, causing the product to be deformed by the tensile stress generated when the mold is opened. Therefore, it is necessary to propose a mold structure that prevents product sticking. Summary of the Invention

[0003] The purpose of the present invention is to provide a slider mold structure that prevents products from sticking to solve the problems raised in the background technology. To achieve the above purpose, the present invention provides the following solutions: a slider mold structure that prevents products from sticking, which includes a male mold core, a female mold core, an upper mold frame, a lower mold frame, a sprue plate and a cover plate. The upper and lower mold frames form a mold frame for supporting parts on the mold, the sprue plate is covered on it to pull off the sprue, the cover plate is covered above the sprue plate to assist in mold opening, the slider ejector assembly is divided into two parts, the ejector part and the slider part, the ejector part is arranged inside the slider part to prevent the product from moving uncontrolled, the slider part is arranged in the mold frame, and its function is to cooperate with the ejector to move in sequence to separate the product from the slider first, and a shovel is also provided inside the structure, and its function is to control the ejector and the slider part to move in sequence.

[0004] In the above description, as a preferred solution, the slider part is composed of a slider, a slider seat, and a slider insert. The slider is movably installed between the male and female mold cores to carry the ejector pin and the pressure plate. The slider seat is movably installed in the mold frame to cooperate with the movement of the shovel. The slider insert is fixedly installed inside the slider to wrap the ejector pin, and its function is to support the pressure plate.

[0005] In the above description, as a preferred solution, a second compression spring is further installed on the slider seat, and its function is to push the slider seat to move in the horizontal direction.

[0006] In the above description, as a preferred solution, a small suction cup is also installed on the insert, and a through hole is also provided in the small suction cup, which is the same size and shape as the through hole in the insert, so that air is continuously sucked in through the through hole to create a vacuum, so that the small suction cup can adsorb the product without falling off or shifting.

[0007] In the above description, as a preferred solution, a pressure plate is further fixedly installed in the slider, and the pressure plate is used to support the slider insert and the slider seat and provide space for the installation of the first compression spring.

[0008] In the above description, as a preferred solution, the ejector portion is composed of an ejector, a first compression spring and a roller. The ejector is movably installed inside the slider portion, and its function is to support the product. The first compression spring is fixedly installed in the middle of the pressure plate to support the ejector so that the ejector always supports the shovel. The roller is fixedly installed at the front end of the ejector and can roll at the front end. Its function is to cooperate with the shovel to control the stroke of the ejector.

[0009] In the above description, as a preferred solution, a groove is further provided at the lower end of the shovel, and planes with different inclinations are provided in the groove, wherein the plane located on the upper side is a straight surface, and the plane located on the lower side is an inclined surface. The straight surface allows the product to detach from the slider first, and the inclined surface allows the ejector pin to detach from the product.

[0010] The beneficial effects of this new type of use are: it avoids deformation caused by product sticking to the slider. Compared with a mold product without rollers, the optimized structure can rotate in the up and down directions, effectively unloading the up and down forces generated by the up and down movement of the shovel, and effectively reducing the risk of parts getting stuck and wearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Schematic diagram of the overall structure of the embodiment

[0012] Figure 2 Schematic diagram of the cross-sectional structure of the slider portion of the embodiment

[0013] Figure 3 Schematic diagram of the three-dimensional structure of the slider portion of the embodiment

[0014] Figure 4 Schematic diagram of the structure of the ejector part

[0015] Figure 5 Schematic diagram of the three-dimensional structure of the shovel

[0016] Figure 6 The motion state diagram of the ejector when it is facing straight in the groove of the shovel machine

[0017] Figure 7 The motion state diagram of the ejector when the groove of the machine is inclined

[0018] Figure 8 A diagram showing the structural features of T-shaped products

[0019] Figure 9 Schematic diagram of the structure of the contact part between the product and the slider

[0020] 1 is the male mold core, 2 is the female mold core, 3 is the upper mold frame, 4 is the lower mold frame, 5 is the gate plate, 6 is the cover plate, 7 is the slider ejector assembly, 71 is the slider part, 711 is the slider, 7111 is the pressure plate, 712 is the slider seat, 713 is the slider insert, 72 is the ejector part, 721 is the ejector, 722 is the compression spring, 723 is the roller, 8 is the shovel, 81 is the groove, 811 is the straight surface, 812 is the inclined surface DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0022] The object of the present invention is achieved in the following ways:

[0023] Example (reference Figure 1 ), a slider mold structure for preventing products from sticking, which structure includes a male mold core 1, a female mold core 2, an upper mold frame 3, a lower mold frame 4, a nozzle plate 5, a cover plate 6, a slider ejector assembly 7 and a shovel 8. The male mold core 1 is fixedly installed on the lower mold frame 4, and its function is to cooperate with the female mold core 2 to form the product. The female mold core 2 is fixedly installed on the upper mold frame 3 for supporting and forming the product. The upper mold frame 3 covers and is on the lower mold frame 4 for supporting and installing the parts in the mold. The lower mold frame 4 is arranged below the upper mold frame 3 to provide an installation foundation for the male mold core. The nozzle plate 5 is fixedly installed below the cover plate 6, and its function is to pull off the nozzle. The cover plate 6 provides a foundation for the fixed installation of the nozzle plate 5 and the shovel 8. The slider ejector assembly 7 is arranged in the mold frame for assisting product demoulding. The shovel 8 is installed below the cover plate 6 by a latch-type tight fit. Its function is to control the forward and backward movement stroke of the slider ejector assembly 7.

[0024] Example (reference Figure 1 、 Figure 2 ), the slider and ejector assembly 7 consists of a slider portion 71 and an ejector portion 72. The slider portion 71 is fixedly installed inside the mold core and the mold frame, and its function is to cooperate with the shovel 8 to move left and right. The ejector portion 72 is installed inside the slider portion 71 and can move left and right inside to prevent the product from moving uncontrolled.

[0025] Example (reference Figure 2 、 Figure 3 、 Figure 4 、 Figure 9), the slider portion 71 is composed of a slider 711, a slider seat 712, and a slider insert 713. The slider 711 is movably installed between the male and female mold cores to carry the ejector pin 721 and the pressure plate 7111. The slider 711 is also fixedly installed with a pressure plate 7111. The pressure plate 7111 is used to support the slider insert 713 and the slider seat 712 and provide space for the installation of the compression spring 722. The slider seat 712 is movably installed in the mold frame to cooperate with the movement of the shovel 8. The slider insert 713 is fixedly installed inside the slider 711 to wrap the ejector pin 721. Its function is to support the pressure plate 7111.

[0026] Example (reference Figure 4 ), the ejector portion 72 consists of an ejector 721, a compression spring 722 and a roller 723. The ejector 721 is movably mounted inside the slider portion 71, and its function is to support the product. The compression spring 722 is fixedly mounted in the middle of the pressure plate 7111, and is used to support the ejector 721 so that the ejector always supports the shovel 8. The roller 723 is fixedly mounted at the front end of the ejector 721 and can roll at the front end. Its function is to cooperate with the shovel 8 to control the stroke of the ejector 721.

[0027] Example (reference Figure 5 ), the lower end of the shovel 8 is also provided with a groove 81, and the groove 81 is provided with planes with different inclinations, wherein the plane located on the upper side is a straight surface 811, and the plane located on the lower side is an inclined surface 812. The straight surface 811 allows the product to separate from the slider first, and the inclined surface 812 allows the ejector pin to separate from the product.

[0028] When the mold is opened, the shovel 8 will move upwards along with the cover plate 6 and the gate plate 5 (refer to Figure 6 、 Figure 7 ), since the upper part of the groove 81 of the shovel 8 contacts the slider seat 712 at an inclined surface, when the shovel 8 moves upward, the slider seat 712 is pushed to the right, and since all the components of the entire slider portion 71 are fixed together at this time, the entire slider portion 71 moves to the right together at this time, and the ejector portion 72 does not move at all because the roller has been pressing against the straight surface 811 of the shovel 8. At this time, the rear end of the ejector 721 presses against the product, and The slider 71 moves to the right together, so that the product will be separated from the slider 711 first. As the shovel 8 continues to move upward, the travel of the roller 723 will reach the inclined surface 812 of the shovel 8. At this time, the compression spring 722 will push the ejector 721 and the roller 723 to move to the right together. The product connected to the rear end of the ejector 721 will be affected by the clamping force of the male mold core 1 and the female mold core 2 and stay in place. At this time, the ejector 721 will continue to move to the right with the travel of the inclined surface 812, so the product will be separated from the ejector 721.

[0029] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered as the scope of protection of the present invention.

Claims

1. A slider mold structure for preventing product sticking, the structure comprising a male mold core (1), a female mold core (2), an upper mold frame (3), a lower mold frame (4), a nozzle plate (5) and a cover plate (6), wherein the upper mold frame (3) and the lower mold frame (4) form a mold frame for supporting parts on the mold, the nozzle plate (5) is covered thereon for pulling off the nozzle, and the cover plate (6) is covered above the nozzle plate for assisting mold opening, wherein the structure comprises: The slider ejector assembly (7) is divided into two parts, an ejector part (72) and a slider part (71). The ejector part (72) is arranged inside the slider part (71) to prevent the product from moving uncontrollably. The slider part (71) is arranged inside the mold frame and functions to cooperate with the ejector part (72) to move in sequence so that the product is separated from the slider (711) first. A shovel (8) is also arranged inside the structure and functions to control the ejector part (72) and the slider part (71) to move in sequence. The ejector part (72) is The push pin (721), a first compression spring (722) and a roller (723) are composed of the push pin (721) being movably mounted inside the slider (71) and having a function of supporting the product. The first compression spring (722) is fixedly mounted in the middle of the pressure plate (7111) and is used to support the push pin (721) so that the push pin (721) always supports the shovel (8). The roller (723) is fixedly mounted at the front end of the push pin (721) and can roll at the front end. Its function is to cooperate with the shovel (8) to control the stroke of the push pin (721).

2. The slider mold structure for preventing product sticking according to claim 1, characterized in that: The slider portion (71) is composed of a slider (711), a slider seat (712), and a slider insert (713). The slider (711) is movably mounted between the male mold core (1) and the female mold core (2) and is used to carry the ejector pin (721) and the pressure plate (7111). The slider seat (712) is movably mounted in the mold frame and is used to cooperate with the movement of the shovel machine (8). The slider insert (713) is fixedly mounted inside the slider (711) and wraps around the ejector pin (721). Its function is to support the pressure plate (7111).

3. The slider mold structure for preventing product sticking as claimed in claim 2, characterized in that: The slider seat (712) is also provided with a second compression spring (7121), which functions to push the slider seat (712) to move in the horizontal direction.

4. The slider mold structure for preventing product sticking as claimed in claim 3, characterized in that: A pressure plate (7111) is also fixedly installed in the slider (711), and the pressure plate (7111) is used to support the slider insert (713) and the slider seat (712) and provide space for the installation of the first compression spring (722).

5. The slider mold structure for preventing product sticking according to claim 1, characterized in that: The shovel (8) is further provided with a groove (81) at the lower end. Planes with different inclinations are provided in the groove (81), wherein the plane located on the upper side is a straight surface (811) and the plane located on the lower side is an inclined surface (812). The straight surface allows the product to be separated from the slider (711) first, and the inclined surface allows the ejector pin (721) to be separated from the product.

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