Injection mold with ejection structure

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold with an ejection structure, which comprises a first mold, second fixing plates are fixedly connected to the two sides of the first mold. The top of the second fixing plate is fixedly connected with an electric push rod. The top of the electric push rod is fixedly connected with a first fixing plate. A second mold is fixedly connected to the end part of the first fixing plate and is positioned at the top of the first mold; guide plates are fixedly connected to the two sides of the first fixing plate. Then a clamping unit is opened by pulling a switch unit, so that the clamping unit rotates towards the two sides, the first mold integrally moves towards the bottom to make contact with the ground, a knocking plate collides with the ground, then the knocking plate is extruded to drive a jacking column to extrude a jacking plate, and the jacking plate is stressed to be attached to the inner side wall of the first mold to slide upwards; and the problem that the articles are difficult to take out by workers due to adhesion in the injection molding process of the articles is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and specifically relates to an injection mold with an ejection structure. Background Art

[0002] Injection molds are one of the key equipment for manufacturing plastic products, and can produce plastic products with various shapes and sizes, such as mobile phone casings, textile products, household appliance casings, automotive parts, etc. These products are ubiquitous in our daily lives, meeting people's diverse needs.

[0003] Injection mold technology can quickly complete steps including injection and molding through an automated process, greatly improving manufacturing efficiency and reducing production costs; this characteristic of efficient production enables enterprises to respond more quickly to market changes and meet customer needs.

[0004] Currently, in the prior art, when the injection mold is finished injecting, the internally molded article is taken out by opening the injection mold. Since the article has just been molded, it will adhere to the inner side wall of the mold and is difficult to take out, thereby reducing the injection efficiency of the article; therefore, an injection mold with an ejection structure is proposed for the above problems. Summary of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the utility model proposes an injection mold with an ejection structure.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: An injection mold with an ejection structure described in the utility model includes a first mold; second fixing plates are fixedly connected to both sides of the first mold; an electric push rod is fixedly connected to the top of the second fixing plate; a first fixing plate is fixedly connected to the top of the electric push rod; a second mold is fixedly connected to the end of the first fixing plate and is located on the top of the first mold; guide plates are fixedly connected to both sides of the first fixing plate; a top plate is slidably connected to the inner side wall of the first mold; a top column is fixedly connected to the bottom of the top plate and is slidably connected to the bottom of the first mold; a knocking plate is fixedly connected to the bottom of the top column; pressing plates are fixedly connected to both sides of the knocking plate; pressing blocks are fixedly connected to both sides of the pressing plates, and guide rods are attached to the tops of the pressing blocks; the other ends of the guide rods are fixedly connected to the bottoms of the guide plates; support legs are hinged to both sides of the first mold; a clamping unit and a switch unit are installed at the ends of the support legs.

[0007] Preferably, the clamping unit includes a clamping groove; a clamping groove is formed inside the first mold; a clamping plate is slidably connected to the inner side wall of the clamping groove; a locking groove is formed inside the clamping plate; a fixing rod is fixedly connected to the end of the clamping plate, and the other end of the fixing rod is fixedly connected to the inner side wall of the support leg; a cavity is formed inside the first mold; a locking block is slidably connected to the inside of the cavity; a second spring is fixedly connected to the top of the locking block, and the other end of the second spring is fixedly connected to the inner side wall of the cavity.

[0008] Preferably, the switch unit includes a pull rope; a pull rope is fixedly connected to the top of the locking block, and the pull rope is slidably connected inside the first mold; the other end of the pull rope is fixedly connected to a pull handle.

[0009] Preferably, a knocking rod is slidably connected to the end of the pressing plate; a knocking ball is fixedly connected to the top of the knocking rod.

[0010] Preferably, a third spring is fixedly connected to the bottom of the first mold; the other end of the third spring is fixedly connected to a protective plate.

[0011] Preferably, a first spring is fixedly connected to the end of the knocking rod, and the other end of the first spring is fixedly connected to the side wall of the pressing plate; the end of the locking block is semi-circular.

[0012] Advantages of the present utility model:

[0013] 1. The present utility model provides an injection mold with an ejection structure. By turning on the electric push rod to drive the first fixing plate to slide downward, the first fixing plate drives the second mold to slide downward and fit on the top of the first mold. When the second mold slides downward, by driving the guide rod to slide downward, the guide rod presses on the surface of the pressing block, so that the pressing block drives the pressing plate to move downward, driving the top plate, the top plate and the knocking plate to slide downward, and then injecting plastic into the first mold. When it is necessary to take out the article after injection molding, by turning on the electric push rod to push the first fixing plate and the second mold to slide upward, and then pulling the switch unit to open the clamping unit, so that it rotates to both sides, making the whole first mold move downward to contact the ground, and the knocking plate hits the ground. Then, the knocking plate is squeezed to drive the ejector pin to squeeze the top plate, so that the top plate slides upward along the inner side wall of the first mold under the force, to quickly eject the article, reducing the problem that the article is difficult to take out by the staff due to adhesion during the injection molding process.

[0014] 2. The present utility model provides an injection mold with an ejection structure. When the knocking plate drives the pressing plate to move upward, by driving the knocking rod and the knocking ball to move upward and knocking on the bottom of the first mold, vibration is generated to quickly assist the ejection of the ejector pin and quickly separate the article, facilitating the staff to perform quick demolding. Description of the drawings

[0015] The accompanying drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a sectional view of the present utility model;

[0018] Figure 3 is a perspective view of the knocking ball in the present utility model;

[0019] Figure 4 is Figure 2 the enlarged view at A in

[0020] Legend description:

[0021] 1. First mold; 21. Second mold; 22. First fixing plate; 23. Electric push rod; 24. Second fixing plate; 25. Top plate; 26. Top column; 27. Knocking plate; 28. Guide plate; 29. Guide rod; 31. Pressing plate; 32. Pressing block; 41. Knocking ball; 42. Knocking rod; 43. First spring; 51. Support leg; 52. Fixed rod; 53. Card slot; 54. Card plate; 55. Cavity; 56. Lock block; 57. Second spring; 61. Pulling rope; 62. Pulling handle; 71. Protection plate; 72. Third spring. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] The following gives specific embodiments.

[0024] Please refer to Figures 1-4, the present utility model provides an injection mold with an ejection structure, including a first mold 1; both sides of the first mold 1 are fixedly connected with a second fixing plate 24; the top of the second fixing plate 24 is fixedly connected with an electric push rod 23; the top of the electric push rod 23 is fixedly connected with a first fixing plate 22; the end of the first fixing plate 22 is fixedly connected with a second mold 21, and is located on the top of the first mold 1; both sides of the first fixing plate 22 are fixedly connected with guide plates 28; the inner side wall of the first mold 1 is slidably connected with a top plate 25; the bottom of the top plate 25 is fixedly connected with a top column 26, and is slidably connected to the bottom of the first mold 1; the bottom of the top column 26 is fixedly connected with a knocking plate 27; both sides of the knocking plate 27 are fixedly connected with pressing plates 31; both sides of the pressing plates 31 are fixedly connected with pressing blocks 32, and the top of the pressing blocks 32 is in contact with a guide rod 29; the other end of the guide rod 29 is fixedly connected to the bottom of the guide plate 28; both sides of the first mold 1 are hinged with support legs 51; the ends of the support legs 51 are provided with a clamping unit and a switch unit; during operation, when an article needs to be injection molded, by turning on the electric push rod 23 to drive the first fixing plate 22 to slide downward, the first fixing plate 22 drives the second mold 21 to slide downward and fit on the top of the first mold 1. When the second mold 21 slides downward, by driving the guide rod 29 to slide downward, the guide rod 29 presses on the surface of the pressing block 32, so that the pressing block 32 drives the pressing plate 31 to move downward, to drive the top plate 25, the top plate 25 and the knocking plate 27 to slide downward, and then injection molding is carried out into the first mold 1. When the article needs to be taken out after injection molding is completed, by turning on the electric push rod 23 to push the first fixing plate 22 and the second mold 21 to slide upward, and then by pulling the switch unit to turn on the clamping unit, so that it rotates to both sides, the first mold 1 as a whole moves downward to contact the ground, so that the knocking plate 27 hits the ground, and then the knocking plate 27 is squeezed to drive the top column 26 to squeeze the top plate 25, so that the top plate 25 is forced to fit on the inner side wall of the first mold 1 and slide upward, to quickly eject the article, reducing the problem that the article is difficult to take out by the staff due to adhesion during the injection molding process.

[0025] Further, as Figure 4As shown, the clamping unit includes a clamping groove 53; a clamping groove 53 is formed inside the first mold 1; a clamping plate 54 is slidably connected to the inner side wall of the clamping groove 53; a locking groove is formed inside the clamping plate 54; a fixing rod 52 is fixedly connected to the end of the clamping plate 54, and the other end of the fixing rod 52 is fixedly connected to the inner side wall of the support leg 51; a cavity 55 is formed inside the first mold 1; a locking block 56 is slidably connected to the inside of the cavity 55; a second spring 57 is fixedly connected to the top of the locking block 56, and the other end of the second spring 57 is fixedly connected to the inner side wall of the cavity 55; during operation, before injection molding, the first mold 1 is rotated by rotating the support leg 51. When the rotation is completed, the fixing rod 52 drives the clamping plate 54 to insert into the clamping groove 53, and then the locking block 56 is squeezed, so that the locking block 56 is contracted into the cavity 55 under the squeeze, and then an elastic force is generated by the squeeze. When the cavity 55 and the locking groove are aligned with each other, the second spring 57 generates an elastic force to push the locking block 56 to insert into the locking groove for quick clamping and fixing, so as to quickly fix and support the support leg 51.

[0026] Further, as Figure 4 shown, the switch unit includes a pull rope 61; a pull rope 61 is fixedly connected to the top of the locking block 56, and the pull rope 61 is slidably connected inside the first mold 1; the other end of the pull rope 61 is fixedly connected to a pull handle 62; during operation, when the first mold 1 and the second mold 21 need to be opened after injection molding, the second mold 21 is pushed to slide upward by opening the electric push rod 23, so that the guide rod 29 and the pressing plate 31 are separated from each other, and then the pull handle 62 is pulled to drive the pull rope 61 to move outward, so that the pull handle 62 pulls the locking block 56 to contract into the cavity 55. Then, the weight generated by the first mold 1 presses the support leg 51, so that the support leg 51 rotates to the side end, and the first mold 1 quickly moves towards the ground to press on the surface of the knocking plate 27, so that the knocking plate 27 is impacted to drive the ejector pin 26 and the top plate 25 to press the bonded article for quick ejection.

[0027] Further, as Figure 3 shown, a knocking rod 42 is slidably connected to the end of the pressing plate 31; a knocking ball 41 is fixedly connected to the top of the knocking rod 42; during operation, when the knocking plate 27 drives the pressing plate 31 to move upward, the knocking rod 42 and the knocking ball 41 are driven to move upward, and knock on the bottom of the first mold 1 to generate vibration, so as to quickly assist the ejection of the ejector pin 26 and quickly separate the article, facilitating the quick demolding process for the staff.

[0028] Further, as Figures 1-2As shown, a third spring 72 is fixedly connected to the bottom of the first mold 1; the other end of the third spring 72 is fixedly connected to a protection plate 71; during operation, with the protection plate 71 and the third spring 72 installed, when the first mold 1 drops towards the ground, by pressing on the surface of the protection plate 71, the protection plate 71 provides protection, and then the third spring 72 is compressed to generate elastic force for rapid buffering, so as to reduce the wear problem that occurs when the first mold 1 hits the ground upon dropping.

[0029] Furthermore, as Figure 3 shown, one end of the knocking rod 42 is fixedly connected to a first spring 43, and the other end of the first spring 43 is fixedly connected to the side wall of the pressing plate 31; the end of the locking block 56 is semi-circular; during operation, when the knocking ball 41 hits the bottom of the first mold 1, by pressing the knocking rod 42 to slide downward, the first spring 43 is pulled to generate elastic force, so as to achieve a buffering effect.

[0030] Working principle: When it is necessary to inject mold an article, the electric push rod 23 is opened to drive the first fixing plate 22 to slide downward, so that the first fixing plate 22 drives the second mold 21 to slide downward and fit on the top of the first mold 1. When the second mold 21 slides downward, it drives the guide rod 29 to slide downward, so that the guide rod 29 presses on the surface of the pressing block 32, causing the pressing block 32 to drive the pressing plate 31 to move downward, thereby driving the top plate 25, the top plate 25 and the knocking plate 27 to slide downward. Then, injection molding is carried out into the first mold 1. When it is necessary to process the article after injection molding, the electric push rod 23 is opened to push the first fixing plate 22 and the second mold 21 to slide upward. Then, the clamping unit is opened by pulling the switch unit, causing it to rotate to both sides, so that the entire first mold 1 moves downward to contact the ground, causing the knocking plate 27 to strike the ground. Then, the knocking plate 27 is squeezed to drive the ejector pin 26 to squeeze the top plate 25, causing the top plate 25 to slide upward along the inner side wall of the first mold 1 under the force, so as to quickly eject the article, reducing the problem that the article is difficult to take out due to adhesion during the injection molding process; Before injection molding, the first mold 1 is rotated by rotating the support leg 51. When the rotation is completed, the fixed rod 52 drives the clamping plate 54 to insert into the card slot 53, and then squeezes the locking block 56, causing the locking block 56 to contract into the cavity 55 under the squeeze, and then squeeze 47 to generate elastic force. When the cavity 55 and the locking groove are aligned, the second spring 57 generates elastic force to push the locking block 56 to insert into the locking groove for quick clamping and fixing, so as to quickly fix and support the support leg 51; When the first mold 1 and the second mold 21 need to be opened after injection molding, the electric push rod 23 is opened to push the second mold 21 to slide upward, so that the guide rod 29 and the pressing plate 31 are separated from each other. Then, the pull handle 62 is pulled to drive the pull rope 61 to move outward, causing the pull handle 62 to pull the locking block 56 to contract into the cavity 55. Then, the weight generated by the first mold 1 squeezes the support leg 51, causing the support leg 51 to rotate to the side end, so that the first mold 1 quickly moves toward the ground and presses on the surface of the knocking plate 27, causing the knocking plate 27 to be struck and drive the ejector pin 26 and the top plate 25 to squeeze the adhered article for quick ejection; When the knocking plate 27 drives the pressing plate 31 to move upward, it drives the knocking rod 42 and the knocking ball 41 to move upward and strike the bottom of the first mold 1 to generate vibration, so as to quickly assist the ejector pin 26 to eject and quickly separate the article, facilitating the staff to quickly demold; By installing the protection plate 71 and the third spring 72, when the first mold 1 falls to the ground, by pressing on the surface of the protection plate 71, the protection plate 71 provides protection, and then squeezes the third spring 72 to generate elastic force for quick buffering, so as to reduce the wear problem when the first mold 1 drops to the ground and collides.When the striking ball 41 hits the bottom of the first mold 1, it slides downward toward the bottom by squeezing the striking rod 42, pulling the first spring 43 to generate elastic force, so as to achieve a buffering effect.;

[0031] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. An injection mold with an ejection structure, comprising a first mold (1); characterized in that: On both sides of the first mold (1), there are second fixing plates (24) fixedly connected; on the top of the second fixing plates (24), there are electric push rods (23) fixedly connected; on the top of the electric push rods (23), there is a first fixing plate (22) fixedly connected; at the end of the first fixing plate (22), there is a second mold (21), and it is located on the top of the first mold (1); on both sides of the first fixing plate (22), there are guide plates (28) fixedly connected; on the inner side wall of the first mold (1), there is a top plate (25) slidably connected; at the bottom of the top plate (25), there is a top column (26) fixedly connected, and it is slidably connected to the bottom of the first mold (1); at the bottom of the top column (26), there is a knocking plate (27) fixedly connected; on both sides of the knocking plate (27), there are pressing plates (31) fixedly connected; on both sides of the pressing plates (31), there are pressing blocks (32) fixedly connected, and the top of the pressing blocks (32) is in contact with a guide rod (29); the other end of the guide rod (29) is fixedly connected to the bottom of the guide plate (28); on both sides of the first mold (1), there are support legs (51) hinged; at the end of the support legs (51), there are a clamping unit and a switch unit installed.

2. The injection mold with an ejection structure according to claim 1, characterized in that: The clamping unit includes a clamping groove (53); inside the first mold (1), there is a clamping groove (53) opened; on the inner side wall of the clamping groove (53), there is a clamping plate (54) slidably connected; inside the clamping plate (54), there is a locking groove opened; at the end of the clamping plate (54), there is a fixing rod (52) fixedly connected, and the other end of the fixing rod (52) is fixedly connected to the inner side wall of the support leg (51); inside the first mold (1), there is a cavity (55) opened; inside the cavity (55), there is a locking block (56) slidably connected; on the top of the locking block (56), there is a second spring (57) fixedly connected, and the other end of the second spring (57) is fixedly connected to the inner side wall of the cavity (55).

3. The injection mold with an ejection structure according to claim 2, characterized in that: The switch unit includes a pull rope (61); on the top of the locking block (56), there is a pull rope (61) fixedly connected, and the pull rope (61) is slidably connected inside the first mold (1); the other end of the pull rope (61) is fixedly connected to a pull handle (62).

4. An injection mold with an ejection structure as described in claim 1, characterized in that: At the end of the pressing plate (31), there is a knocking rod (42) slidably connected; on the top of the knocking rod (42), there is a knocking ball (41) fixedly connected.

5. The injection mold with an ejection structure according to claim 1, wherein: At the bottom of the first mold (1), there is a third spring (72) fixedly connected; the other end of the third spring (72) is fixedly connected to a protection plate (71).

6. The injection mold with an ejection structure according to claim 4, characterized in that: At the end of the knocking rod (42), there is a first spring (43) fixedly connected, and the other end of the first spring (43) is fixedly connected to the side wall of the pressing plate (31).

7. The injection mold with an ejection structure according to claim 2, wherein: The end of the locking block (56) is semi-circular.

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