Novel material ejecting structure

Abstract

The utility model discloses a novel material ejecting structure, and relates to the technical field of material ejecting structures, the novel material ejecting structure comprises an L-shaped plate, a lower die, a stamping mechanism, a material ejecting mechanism, a blowing mechanism and a material ejecting block mechanism, the lower die is fixedly connected to the right side face of the lower end of the L-shaped plate, the stamping mechanism is installed on the lower surface of the top end of the L-shaped plate, and a cavity is formed in the upper surface of the lower die; a mounting cavity is formed in the lower die, through grooves are formed in the two ends of the inner bottom face of the cavity, the ends, away from the cavity, of the through grooves communicate with the mounting cavity, and the jacking mechanism is mounted on the inner bottom face of the mounting cavity. Through cooperation of the structures, the periphery of the product can be blown on the basis that the height of the stamped and molded product is kept, bonding between the product and the inner side wall of the cavity is prevented, and damage to the product is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of top material structure technology, specifically a novel top material structure. Background Art

[0002] In mold design, the ejector structure can smoothly eject the molded product from the mold, shortening the production cycle and improving production efficiency.

[0003] Referring to announcement number CN213472078U, an ejector mechanism for an automotive injection mold is disclosed, including a lower mold base, a lower mold mounted on the top of the lower mold base, and a first movable cavity connected between the lower mold base and the lower mold. A mold cavity is provided inside the lower mold, and an installation groove is provided at the bottom of the mold cavity, which is connected to the first movable cavity. A top plate is installed in the installation groove, and sliding rods are symmetrically arranged at the bottom of the top plate. A fixed sleeve is provided between the sliding rods, and an ejector rod is fitted at the bottom of the fixed sleeve. Pull rods are symmetrically arranged on both sides of the ejector rods, and a movable sliding sleeve is installed at the top of the pull rod, which is fitted on the outside of the sliding rod. A second movable cavity is provided inside the lower mold base, and a through hole is provided on the right side of the second movable cavity, in which an operating rod is installed.

[0004] In the process of developing this application, the following problems were found with this technology: When used in the above patent documents, the injection molded part needs to be ejected by manually rotating the operating lever and then the top plate needs to be reset after ejecting the injection molded part. The manual operation steps are cumbersome, and the ejection mechanism cannot achieve automatic ejection of the injection molded part. On the other hand, although the molded product can be ejected from the inner wall of the mold, if the product sticks to the inner wall of the mold, forcibly ejecting it may damage the product.

[0005] Therefore, a novel top material structure is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a novel top material structure so as to maintain the height of the stamped product while blowing around the product to prevent the product from sticking to the inner wall of the cavity and reduce damage to the product.

[0007] The technical solution adopted in this utility model is as follows:

[0008] A novel ejector structure includes an L-shaped plate, a lower die, a stamping mechanism, an ejector mechanism, an air blowing mechanism, and an ejector block mechanism. The lower die is fixedly connected to the lower right side of the L-shaped plate. The stamping mechanism is installed on the lower top surface of the L-shaped plate. A cavity is formed on the upper surface of the lower die. An installation cavity is formed inside the lower die. Through grooves are formed at both ends of the inner bottom surface of the cavity. The end of the through groove away from the cavity is connected to the installation cavity. The ejector mechanism is installed on the inner bottom surface of the installation cavity.

[0009] The material-lifting mechanism includes a lower hydraulic cylinder, which is fixedly connected to the inner bottom surface of the mounting cavity. A lower lifting column is installed at the output end of the lower hydraulic cylinder. A lifting plate is fixedly connected to the end of the lower lifting column away from the lower hydraulic cylinder. A top rod is fixedly connected to the middle of the upper surface of the lifting plate. The material-lifting block mechanism is installed on the upper surface of the top rod.

[0010] The top material block mechanism includes a top material block body, the lower surface of which is fixedly connected to the upper surface of the top rod. An air storage chamber is provided inside the top material block body, which is connected to the internal cavity of the top rod. A nitrile rubber sealing gasket is bonded to the outer surface of the top material block body, and the outer surface of the nitrile rubber sealing gasket is in contact with the inner surface of the through groove. A plurality of air outlets are provided on the outer side of the top material block body, and the end of the air outlet away from the top material block body passes through the nitrile rubber sealing gasket and is connected to the outside.

[0011] The air blowing mechanism includes a booster air pump, which is fixedly connected to the right side of the lower mold. The air outlet of the booster air pump is connected to an air guide pipe. The end of the air guide pipe away from the booster air pump extends into the installation cavity and is connected to a flexible hose. The end of the flexible hose away from the air guide pipe is connected to the internal cavity of the push rod.

[0012] Furthermore, the stamping mechanism includes an upper hydraulic cylinder, which is fixedly connected to the lower surface of the top end of the L-shaped plate, and an upper lifting column is installed on the lower surface of the upper hydraulic cylinder.

[0013] Furthermore, an upper mold is fixedly connected to the lower surface of the upper lifting column, and a stamping plate is fixedly connected to the middle of the lower surface of the upper mold, with the outer surface of the stamping plate fitting against the inner surface of the cavity.

[0014] Furthermore, positioning posts are fixedly connected to the lower surfaces of the upper dies on both sides of the stamping plate, and positioning holes are opened on the upper surfaces of the lower dies on both sides of the cavity. The length of the positioning posts is adapted to the depth of the positioning holes.

[0015] Furthermore, a limit block is fixedly connected to the upper right surface of the lifting plate.

[0016] Furthermore, two sealing plates are hinged to the front side of the lower mold near the mounting cavity, and a handle is fixedly connected to the outer surface of the sealing plates.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] In this invention, after the raw material to be shaped is injected into the cavity, it is stamped using a stamping mechanism. Then, the lower hydraulic cylinder is activated to move the lower lifting column upward, which in turn moves the lifting plate upward. The upward-moving lifting plate, through the push rod, drives the ejector block mechanism to slide upward inside the channel until the sliding ejector block mechanism enters the cavity and lifts the stamped product to a certain height, which is then maintained. Next, a booster air pump is activated to draw in external air. The drawn air can enter the push rod through the air guide pipe and hose. The airflow inside the push rod moves upward to the air storage chamber and is ejected from the air outlet. The ejected gas can blow away the gap between the inner wall of the cavity and the stamped product, preventing the product from sticking to the inner wall of the cavity. Finally, the product is ejected from the cavity. Through the cooperation of the above structures, the stamped product can be held at a certain height while blowing around it to prevent the product from sticking to the inner wall of the cavity, reducing damage to the product. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0022] Figure 4 This is a schematic diagram showing the connection between the top material mechanism and the top material block mechanism in this utility model.

[0023] The markings in the diagram are: 1-L-shaped plate, 2-lower mold, 3-stamping mechanism, 4-ejector mechanism, 5-air blowing mechanism, 6-ejector block mechanism, 21-installation cavity, 22-cavity, 23-positioning hole, 24-sealing plate, 25-handle, 26-through groove, 31-upper hydraulic cylinder, 32-upper lifting column, 33-upper mold, 34-stamping plate, 35-positioning column, 41-lower hydraulic cylinder, 42-lower lifting column, 43-lifting plate, 44-limiting block, 45-ejector rod, 51-boosting air pump, 52-air guide pipe, 53-hose, 61-ejector block body, 62-air storage cavity, 63-nitrile rubber sealing gasket, 64-air outlet. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0025] Reference Figures 1-4 A novel ejector structure includes an L-shaped plate 1, a lower mold 2, a stamping mechanism 3, an ejector mechanism 4, an air blowing mechanism 5, and an ejector block mechanism 6. The lower mold 2 is fixedly connected to the lower right side of the L-shaped plate 1. The stamping mechanism 3 is installed on the lower surface of the top of the L-shaped plate 1. A cavity 22 is formed on the upper surface of the lower mold 2. The stamping mechanism 3 includes an upper hydraulic cylinder 31, which is fixedly connected to the lower surface of the top of the L-shaped plate 1. An upper lifting column 32 is installed on the lower surface of the upper hydraulic cylinder 31. An upper mold 33 is fixedly connected to the lower surface of the upper lifting column 32. A stamping plate 34 is fixedly connected to the middle of the lower surface of the upper mold 33. The outer surface of the stamping plate 34... The surface of the stamping plate 34 is in contact with the inner surface of the cavity 22. The lower surface of the upper mold 33 on both sides of the stamping plate 34 is fixedly connected with the positioning pin 35. The upper surface of the lower mold 2 on both sides of the cavity 22 is provided with positioning holes 23. The length of the positioning pin 35 is matched with the depth of the positioning hole 23. Specifically, when using this device, first connect the external power supply, then inject the required shaping material into the cavity 22, and start the upper hydraulic cylinder 31 to make the upper lifting pin 32 drive the upper mold 33 to move downward. The downward moving upper mold 33 will drive the positioning pin 35 to insert into the positioning hole 23. At this time, the stamping plate 34 will move into the cavity 22 to stamp and form the material.

[0026] Reference Figures 1-4The lower mold 2 has an internal mounting cavity 21. The inner bottom surface of the cavity 22 has through grooves 26 at both ends. The end of the through groove 26 away from the cavity 22 is connected to the mounting cavity 21. The ejector mechanism 4 is installed on the inner bottom surface of the mounting cavity 21. The ejector mechanism 4 includes a lower hydraulic cylinder 41, which is fixedly connected to the inner bottom surface of the mounting cavity 21. A lower lifting column 42 is installed at the output end of the lower hydraulic cylinder 41. A lifting plate 43 is fixedly connected to the end of the lower lifting column 42 away from the lower hydraulic cylinder 41. A push rod 45 is fixedly connected to the middle of the upper surface of the lifting plate 43. The ejector block mechanism 6 is installed on the push rod 45. The upper surface of the lifting plate 43; specifically, after the molding is completed, the lower hydraulic cylinder 41 can be activated to make the lower lifting column 42 drive the lifting plate 43 to move upward. The upward-moving lifting plate 43 will drive the top material block mechanism 6 to slide upward inside the through groove 26 through the top rod 45 until the sliding top material block mechanism 6 enters the cavity 22 and lifts the stamped product to a certain height and then maintains the height; the upper right surface of the lifting plate 43 is fixedly connected to the limit block 44; specifically, the limit block 44 can limit the lifting height of the lifting plate 43 to avoid excessive lifting of the lifting plate 43 and damage to the lifting plate 43.

[0027] Reference Figures 1-4 The ejector block mechanism 6 includes an ejector block body 61, the lower surface of which is fixedly connected to the upper surface of the ejector rod 45. An air storage chamber 62 is provided inside the ejector block body 61, and the air storage chamber 62 is connected to the internal cavity of the ejector rod 45. A nitrile rubber sealing gasket 63 is bonded to the outer surface of the ejector block body 61, and the outer surface of the nitrile rubber sealing gasket 63 is in contact with the inner surface of the through groove 26. Several air outlets 64 are provided on the outer side of the ejector block body 61, and one end of the air outlet 64 away from the ejector block body 61 passes through the nitrile rubber sealing gasket 63 and connects to the outside. The air blowing mechanism 5 includes a booster pump 51, which is fixedly connected to the right side of the lower mold 2. The air outlet of the booster pump 51 is connected to an air guide pipe 52, and one end of the air guide pipe 52 away from the booster pump 51 extends into… A flexible hose 53 is connected to the interior of the mounting cavity 21. The end of the hose 53 away from the air guide pipe 52 is connected to the internal cavity of the push rod 45. Specifically, when the booster air pump 51 is activated, external air is drawn in. The drawn air can enter the push rod 45 through the air guide pipe 52 and the flexible hose 53. The airflow inside the push rod 45 moves upward to the air storage cavity 62 and is ejected from the air outlet 64. The ejected gas can blow away the gap between the inner wall of the cavity 22 and the stamped product, preventing the product from sticking to the inner wall of the cavity 22. Finally, the product is ejected from the cavity 22. Through the cooperation of the above structure, the stamped product can be held at a certain height while blowing around the product to prevent the product from sticking to the inner wall of the cavity 22 and reduce damage to the product.

[0028] Reference Figures 1-4Two sealing plates 24 are hinged to the front side of the lower mold 2 near the mounting cavity 21. A handle 25 is fixedly connected to the outer surface of the sealing plate 24. Specifically, the sealing plate 24 can be opened by holding the handle 25 so that the lower hydraulic cylinder 41 can be maintained.

[0029] The implementation principle of a novel top-material structure embodiment of this application is as follows:

[0030] When using this device, first connect an external power source, inject the required shaping material into the cavity 22, then start the upper hydraulic cylinder 31 to make the upper lifting column 32 drive the upper mold 33 to move downward. The downward moving upper mold 33 will drive the positioning column 35 to insert into the positioning hole 23. At this time, the stamping plate 34 will move into the cavity 22 to stamp and form the material.

[0031] After molding, the lower hydraulic cylinder 41 can be activated to move the lower lifting column 42 and the lifting plate 43 upward. The upward-moving lifting plate 43 will drive the ejector block mechanism 6 to slide upward inside the through groove 26 through the ejector rod 45 until the sliding ejector block mechanism 6 enters the cavity 22 and lifts the stamped product to a certain height for height maintenance. Then, the booster air pump 51 is activated to draw external air. The drawn air can enter the ejector rod 45 through the air guide pipe 52 and the hose 53. The airflow inside the ejector rod 45 will move upward to the air storage chamber 62 and be ejected from the air outlet 64. The ejected gas can blow the gap between the inner wall of the cavity 22 and the stamped product, preventing the product from sticking to the inner wall of the cavity 22. Finally, the product is ejected from the cavity 22. Through the cooperation of the above structure, the stamped product can be held at a certain height while blowing around the product to prevent the product from sticking to the inner wall of the cavity 22 and reduce damage to the product.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel ejector structure, comprising an L-shaped plate (1), a lower mold (2), a stamping mechanism (3), an ejector mechanism (4), an air blowing mechanism (5), and an ejector block mechanism (6), characterized in that: The lower mold (2) is fixedly connected to the lower right side of the L-shaped plate (1). The stamping mechanism (3) is installed on the lower top surface of the L-shaped plate (1). A cavity (22) is opened on the upper surface of the lower mold (2). An installation cavity (21) is opened inside the lower mold (2). Through grooves (26) are opened at both ends of the inner bottom surface of the cavity (22). One end of the through groove (26) away from the cavity (22) is connected to the installation cavity (21). The ejector mechanism (4) is installed on the inner bottom surface of the installation cavity (21). The top material mechanism (4) includes a lower hydraulic cylinder (41), which is fixedly connected to the inner bottom surface of the mounting cavity (21). A lower lifting column (42) is installed at the output end of the lower hydraulic cylinder (41). A lifting plate (43) is fixedly connected to one end of the lower lifting column (42) away from the lower hydraulic cylinder (41). A top rod (45) is fixedly connected to the middle of the upper surface of the lifting plate (43). The top material block mechanism (6) is installed on the upper surface of the top rod (45). The top material block mechanism (6) includes a top material block body (61), the lower surface of the top material block body (61) is fixedly connected to the upper surface of the top rod (45), the top material block body (61) has an air storage cavity (62) inside, the air storage cavity (62) is connected to the internal cavity of the top rod (45), the outer surface of the top material block body (61) is bonded with a nitrile rubber sealing gasket (63), the outer surface of the nitrile rubber sealing gasket (63) is in contact with the inner surface of the through groove (26), the outer side of the top material block body (61) has a plurality of air outlet holes (64), the end of the air outlet hole (64) away from the top material block body (61) passes through the nitrile rubber sealing gasket (63) and is connected to the outside; The air blowing mechanism (5) includes a booster air pump (51), which is fixedly connected to the right side of the lower mold (2). The air outlet of the booster air pump (51) is connected to an air guide pipe (52). One end of the air guide pipe (52) away from the booster air pump (51) extends into the mounting cavity (21) and is connected to a hose (53). One end of the hose (53) away from the air guide pipe (52) is connected to the internal cavity of the push rod (45).

2. The novel top-material structure as described in claim 1, characterized in that: The stamping mechanism (3) includes an upper hydraulic cylinder (31), which is fixedly connected to the lower top surface of the L-shaped plate (1), and an upper lifting column (32) is installed on the lower surface of the upper hydraulic cylinder (31).

3. The novel top-material structure as described in claim 2, characterized in that: The lower surface of the upper lifting column (32) is fixedly connected to an upper mold (33), and the middle part of the lower surface of the upper mold (33) is fixedly connected to a stamping plate (34), and the outer surface of the stamping plate (34) is in contact with the inner surface of the cavity (22).

4. The novel top-material structure as described in claim 3, characterized in that: Positioning pins (35) are fixedly connected to the lower surfaces of the upper molds (33) on both sides of the stamping plate (34), and positioning holes (23) are opened on the upper surfaces of the lower molds (2) on both sides of the cavity (22). The length of the positioning pins (35) is matched with the depth of the positioning holes (23).

5. The novel top-material structure as described in claim 1, characterized in that: A limit block (44) is fixedly connected to the upper right surface of the lifting plate (43).

6. The novel top-material structure as described in claim 1, characterized in that: The lower mold (2) has two sealing plates (24) hinged to the front side near the mounting cavity (21), and a handle (25) is fixedly connected to the outer surface of the sealing plate (24).

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