Pressurizing device for molding die and molding die

Abstract

The present invention provides a pressurizing device for a molding die and a molding die, which belongs to the field of production and manufacturing technology, and includes a mounting seat, an ejector pin, a positioning mechanism, a reset mechanism and a driving mechanism; the mounting seat is used to be installed above the mold, and a plurality of connecting holes are provided on the mounting seat, through which the ejector pin slides, and the lower end of the ejector pin is used to act on the mold, the positioning mechanism is provided on the mounting seat and connected to the ejector pin, and is used to limit the position of the ejector pin, the reset mechanism is provided on the mounting seat and connected to the ejector pin, and is used to drive the ejector pin to reset, and the driving mechanism is provided above the mounting seat, and is used to drive the ejector pin to move downward. The pressurizing device for a molding die provided by the present invention ensures that a plurality of ejector pins act on the mold by means of a driving mechanism and a positioning mechanism, thereby achieving a pressurizing effect on the mold, and can smoothly return to its original position under the action of the reset mechanism, thereby improving the quality of the finished product.

Description

Technical Field

[0001] The invention belongs to the technical field of production and manufacturing, and more specifically, relates to a pressurizing device for a molding die and a molding die. Background Art

[0002] During the material forming process, different parts need to be designed with different upper and lower molds, and in some cases, the mold needs to be pressurized to improve the quality of the finished product. Generally, the mold and the part model are made into one piece, which will limit the use of the mold and cause resource waste. If different part models can use the same mold, or a combined mold, it will greatly save materials and costs, but the mold needs to be pressurized to ensure the quality of the finished product. Summary of the invention

[0003] The object of the present invention is to provide a pressurizing device for a molding die and a molding die, so as to solve the technical problem in the prior art that the quality of finished parts is low when different part models are produced using the same mold.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a pressurizing device for a molding die, comprising:

[0005] A mounting seat, used for mounting above the mold; the mounting seat is provided with a plurality of connecting holes;

[0006] There are multiple ejector pins, which correspond to the connection holes one by one. The ejector pins slide through the connection holes. The lower ends of the ejector pins are used to act on the mold.

[0007] A positioning mechanism, disposed on the mounting seat and connected to the ejector pin, for limiting the position of the ejector pin;

[0008] A reset mechanism, disposed on the mounting seat and connected to the ejector pin, for driving the ejector pin to reset;

[0009] The driving mechanism is arranged above the mounting seat and is used for driving the ejector pin to move downward.

[0010] As another embodiment of the present application, a plurality of ejector pins are arranged on the mounting base in a rectangular array.

[0011] As another embodiment of the present application, the distance between two adjacent ejector pins is between two and three times the diameter of the ejector pin.

[0012] As another embodiment of the present application, the positioning mechanism includes:

[0013] A rack is provided on the outer side of the ejector pin.

[0014] A plurality of rotating shafts are located at one side of the ejector pins in the same row and correspond to the racks of the corresponding ejector pins; each rotating shaft is rotatably connected to the mounting seat;

[0015] A plurality of claws are fixedly mounted on the rotating shaft and correspond one-to-one to the plurality of ejector pins in the same row; the claws are used to rotate with the rotating shaft and be clamped on the rack;

[0016] The first spring is arranged on the mounting seat and is located at a side of the rotating shaft away from the rack, and is used for driving the rotating shaft to rotate.

[0017] As another embodiment of the present application, a limit plate extending outward is provided on the outer side surface of the rotating shaft; the lower end of the first spring is fixed on the mounting seat, and the upper end is fixedly connected to the lower end surface of the limit plate.

[0018] As another embodiment of the present application, a plurality of mounting sleeves are provided at the lower end of the mounting seat, and each mounting sleeve is coaxially arranged with each connecting hole; the reset mechanism is arranged in the mounting sleeve; the ejector pin passes through the connecting hole and the mounting sleeve and is connected to the reset mechanism.

[0019] As another embodiment of the present application, the reset mechanism is a second spring, a limiting shoulder is provided on the ejector pin, and the second spring is arranged between the limiting shoulder and the bottom surface of the mounting sleeve.

[0020] As another embodiment of the present application, a rounded structure is provided at the lower end of the ejector pin.

[0021] As another embodiment of the present application, a pressure plate for connecting to a driving mechanism is provided at the upper end of the ejector pin.

[0022] The beneficial effects of the pressurizing device for a molding mold provided by the present invention are as follows: compared with the prior art, the pressurizing device for a molding mold provided by the present invention installs a mounting seat above the mold, starts a driving mechanism to move downward and contact with the upper ends of a plurality of ejector pins, and squeezes the ejector pins to move in the connecting hole and overcome the force of the reset mechanism to contact the mold, and at the same time, the positioning mechanism positions the ejector pins, thereby achieving a pressurizing effect on the mold and making the quality of the finished product higher; after the mold production is completed, the driving mechanism and the positioning mechanism are moved in the reverse direction, so that the ejector pins are not subjected to the downward force, and at the same time, the ejector pins return to their original position under the action of the reset mechanism and are away from the mold; in this way, with the help of the driving mechanism and the positioning mechanism, the plurality of ejector pins are ensured to act on the mold, thereby achieving a pressurizing effect on the mold, and can smoothly return to their original position under the action of the reset mechanism, thereby improving the quality of the finished product.

[0023] Another object of the present invention is to provide a molding die, comprising any one of the above-mentioned pressurizing devices for the molding die.

[0024] The molding die provided by the present invention adopts a pressurizing device for the molding die, thereby achieving a pressurizing effect on the mold, and can smoothly return to its original position under the action of a reset mechanism, thereby improving the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a pressurizing device for a molding die provided in an embodiment of the present invention Figure 1 ;

[0027] Figure 2 A schematic diagram of the structure of a pressurizing device for a molding die provided in an embodiment of the present invention Figure 2 .

[0028] Among them, the reference numerals in the figure are:

[0029] 1. Mounting seat; 11. Connecting hole; 12. Mounting sleeve; 2. Ejector pin; 21. Limiting shoulder; 22. Rounded corner structure; 23. Pressure plate; 3. Positioning mechanism; 31. Rack; 32. Rotating shaft; 33. Claw; 34. First spring; 35. Limiting plate; 36. Handle; 4. Reset mechanism; 41. Second spring. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] See also Figure 1 and Figure 2 , the pressurizing device for a molding die provided by the present invention is now described. A pressurizing device for a molding die comprises a mounting seat 1, an ejector pin 2, a positioning mechanism 3, a reset mechanism 4 and a driving mechanism; the mounting seat 1 is used to be mounted above the mold; a plurality of connecting holes 11 are provided on the mounting seat 1; the number of ejector pins 2 is multiple, and they correspond to each connecting hole 11 one by one; the ejector pin 2 slides through the connecting hole 11; the lower end of the ejector pin 2 is used to act on the mold; the positioning mechanism 3 is provided on the mounting seat 1 and connected to the ejector pin 2, and is used to limit the position of the ejector pin 2; the reset mechanism 4 is provided on the mounting seat 1 and connected to the ejector pin 2, and is used to drive the ejector pin 2 to reset; the driving mechanism is provided above the mounting seat 1, and is used to drive the ejector pin 2 to move downward.

[0035] Compared with the prior art, the pressurizing device for a molding mold provided by the present invention is used by installing a mounting seat 1 above the mold, starting a driving mechanism to move downward and contact with the upper ends of a plurality of ejector pins 2, and squeezing the ejector pins 2 to move in the connecting hole 11 and overcome the force of the resetting mechanism 4 to contact the mold, and at the same time, the positioning mechanism 3 positions the ejector pins 2, thereby achieving a pressurizing effect on the mold and making the quality of the finished product higher; after the mold production is completed, the driving mechanism and the positioning mechanism 3 are moved in the reverse direction, so that the ejector pins 2 are not subjected to the downward force, and at the same time, the ejector pins 2 return to their original positions under the action of the resetting mechanism 4 and are away from the mold; in this way, with the help of the driving mechanism and the positioning mechanism 3, it is ensured that the plurality of ejector pins 2 act on the mold, thereby achieving a pressurizing effect on the mold, and can smoothly return to their original positions under the action of the resetting mechanism 4, thereby improving the quality of the finished product.

[0036] The driving mechanism can be manually driven or driven by a press, etc. After applying a force to pressurize the ejector pin 2 on the mold and positioning the ejector pin 2 by the positioning mechanism 3, the driving mechanism can be removed, saving manpower, energy, etc.

[0037] See also Figure 1 and Figure 2 As a specific embodiment of the pressurizing device for the molding mold provided by the present invention, a plurality of ejector pins 2 are arranged on the mounting seat 1 in a rectangular array, so that the plurality of ejector pins 2 more comprehensively cover the top of the mold. With the help of the driving mechanism, the plurality of ejector pins 2 are pressed downward, so that the plurality of ejector pins 2 slide downward in the connecting hole 11 and are evenly squeezed on the mold, so that the mold is evenly stressed and the quality of the finished product is improved.

[0038] See also Figure 1 and Figure 2 As a specific embodiment of the pressurizing device for the molding mold provided by the present invention, the distance between two adjacent ejector pins 2 is between two and three times the diameter of the ejector pin 2, so that the ejector pins 2 are arranged more densely, and the density of the contact points between the ejector pins 2 and the mold is increased; and a reasonable spacing between adjacent ejector pins 2 can be achieved, which is convenient for installation and reduces costs. The distance between two adjacent ejector pins 2 is between two and three times the diameter of the ejector pin 2, so a positioning mechanism 3 can be set between two adjacent ejector pins 2 to limit the position of the ejector pin 2.

[0039] See also Figure 1 and Figure 2As a specific embodiment of the pressurizing device for the molding die provided by the present invention, the positioning mechanism 3 includes a rack 31, a rotating shaft 32, a clamping claw 33 and a first spring 34. The rack 31 is arranged on the outer surface of the ejector 2. The number of the rotating shaft 32 is multiple, located on one side of the ejector 2 in the same column, and corresponds to the rack 31 of the corresponding ejector 2; each rotating shaft 32 is rotatably connected to the mounting seat 1; the number of the clamping claw 33 is multiple, and the sleeve is fixed on the rotating shaft 32, and corresponds to the multiple ejector 2 in the same column one by one; the clamping claw 33 is used to rotate with the rotating shaft 32 and clamp on the rack 31; the first spring 3 4 is arranged on the mounting seat 1 and is located on the side of the rotating shaft 32 away from the rack 31, and is used to drive the rotating shaft 32 to rotate. When in use, the rotating shaft 32 is driven to rotate toward the corresponding ejector 2 and the rack 31 under the action of the first spring 34, so that the claw 33 is clamped on the gear teeth of the rack 31 and exerts a force downward to achieve a limiting effect on the ejector 2, ensuring that the ejector 2 can stably exert force on the mold. After the production is completed, the rotating shaft 32 is rotated in the opposite direction to overcome the elastic force of the first spring 34, so that the claw 33 is disengaged from the gear teeth of the rack 31 and returns to its original position under the action of the reset mechanism 4. The rotating shaft 32 is arranged on one side of the ejector 2 in the same row, and multiple claws 33 are arranged on the rotating shaft 32, so that multiple ejector 2 in the same row can be positioned simultaneously using one rotating shaft 32. A handle 36 is arranged at one end of the rotating shaft 32, and the user can simply and conveniently drive the rotating shaft 32 to rotate.

[0040] See also Figure 1 and Figure 2 As a specific embodiment of the pressurizing device for the molding die provided by the present invention, a limit plate 35 extending outward is provided on the outer side of the rotating shaft 32; the lower end of the first spring 34 is fixed on the mounting seat 1, and the upper end is fixedly connected to the lower end face of the limit plate 35. When the claw 33 is clamped into the gear teeth of the rack 31, the limit plate 35 is in a horizontal state, so the first spring 34 applies an upward force to the limit plate 35, so that the claw 33 can be tightly clamped into the rack 31, and the limit plate 35 and the first spring 34 in this state are more stable, and the first spring 34 will not accidentally detach. The limit plate 35 is welded to the outer side of the rotating shaft 32, or the limit plate 35 and the rotating shaft 32 are provided with an integrally formed structure.

[0041] See also Figure 1 and Figure 2As a specific embodiment of the pressurizing device for the molding mold provided by the present invention, the lower end of the mounting seat 1 is provided with a plurality of mounting sleeves 12, each mounting sleeve 12 is coaxially arranged with each connecting hole 11; the reset mechanism 4 is arranged in the mounting sleeve 12; the ejector pin 2 passes through the connecting hole 11 and the mounting sleeve 12 and is connected to the reset mechanism 4, the mounting sleeve 12 is a hollow cylindrical structure, and both the upper and lower ends are provided with openings, the opening at the upper end corresponds to the connecting hole 11, the ejector pin 2 passes through the connecting hole 11 and the mounting sleeve 12 from top to bottom, and then acts on the mold. The reset mechanism 4 is arranged in the mounting sleeve 12, and when the ejector pin 2 passes through the mounting sleeve 12, the ejector pin 2 overcomes the action of the reset mechanism 4, and after the pressurizing operation is completed, the positioning mechanism 3 is evacuated so that the ejector pin 2 returns to its original position under the action of the reset mechanism 4. The mounting sleeve 12 is fixedly connected to the lower end surface of the mounting seat 1. A flange can be set at the upper end of the mounting sleeve 12. The mounting sleeve 12 is fixedly connected to the mounting seat 1 through the flange. Bolts are used to pass through the flange to fix the mounting sleeve 12 to the mounting seat 1.

[0042] See also Figure 1 and Figure 2 As a specific embodiment of the pressurizing device for the molding die provided by the present invention, the reset mechanism 4 is a second spring 41, and the ejector pin 2 is provided with a limiting shoulder 21. The second spring 41 is provided between the limiting shoulder 21 and the bottom surface of the mounting sleeve 12. The second spring 41 is installed in the mounting sleeve 12 and sleeved on the ejector pin 2. The upper end of the second spring 41 abuts against the limiting shoulder 21, and the lower end abuts against the bottom surface of the hollow structure in the mounting sleeve 12, which simplifies the installation steps of the second spring 41. When the driving mechanism controls the ejector pin 2 to move downward, the limiting shoulder 21 compresses the second spring 41 to overcome the elastic force of the second spring 41; after the mold is pressurized, the ejector pin 2 is driven to reset under the elastic force of the second spring 41.

[0043] See also Figure 1 and Figure 2 As a specific embodiment of the pressurizing device for the molding mold provided by the present invention, the lower end of the ejector pin 2 is provided with a rounded corner structure 22, which can improve the application range of the ejector pin 2, so that the ejector pin 2 can stably contact the outer side surface of the mold with different shapes and apply external force to the mold. The lower end of the ejector pin 2 can also be set as a hemispherical structure; at the same time, the rounded corner structure 22 at the lower end of the ejector pin 2 can also prevent the ejector pin 2 from scratching or rubbing the outer side surface of the mold.

[0044] See also Figure 1 and Figure 2As a specific embodiment of the pressurizing device for the molding die provided by the present invention, a pressure plate 23 for connecting with a driving mechanism is provided at the upper end of the ejector pin 2. When the ejector pin 2 is pressed downward by the driving mechanism, the driving mechanism acts on the pressure plate 23. The cross-sectional area of ​​the pressure plate 23 is larger than the cross-sectional area of ​​the ejector pin 2, thereby reducing the stress of the driving mechanism on the ejector pin 2, ensuring that the ejector pin 2 is less damaged and has higher stability, thereby ensuring that the ejector pin 2 moves down smoothly until it contacts the mold. The pressure plate 23 is fixed to the ejector pin 2 by welding, or the pressure plate 23 and the ejector pin 2 are integrally formed.

[0045] Not shown in the figures, an embodiment of the present invention further provides a molding die, and the molding die includes any one of the above-mentioned pressurizing devices for the molding die.

[0046] The molding die provided by the present invention adopts the above-mentioned pressurizing device for the molding die, thereby achieving a pressurizing effect on the mold, and can smoothly return to its original position under the action of the reset mechanism 4, thereby improving the quality of the finished product.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressurizing device for a molding die, characterized in that: include: A mounting seat, used for mounting above the mold; the mounting seat is provided with a plurality of connecting holes; There are multiple ejector pins, which correspond to the connection holes one by one. The ejector pins slide through the connection holes. The lower ends of the ejector pins are used to act on the mold. A positioning mechanism, disposed on the mounting seat and connected to the ejector pin, for limiting the position of the ejector pin; A reset mechanism, disposed on the mounting seat and connected to the ejector pin, for driving the ejector pin to reset; A driving mechanism, disposed above the mounting seat, for driving the ejector pin to move downward; A plurality of ejector pins are arranged on the mounting seat in a rectangular array; The positioning mechanism comprises: A rack, arranged on the outer side of the ejector pin; A plurality of rotating shafts are located at one side of the ejector pins in the same row and correspond to the racks of the corresponding ejector pins; each rotating shaft is rotatably connected to the mounting seat; A plurality of claws are fixedly mounted on the rotating shaft and correspond one-to-one to the plurality of ejector pins in the same row; the claws are used to rotate with the rotating shaft and be clamped on the rack; The first spring is arranged on the mounting seat and is located at a side of the rotating shaft away from the rack, and is used for driving the rotating shaft to rotate.

2. The pressurizing device for a molding die according to claim 1, wherein: The distance between two adjacent ejector pins is between two and three times the diameter of the ejector pin.

3. The pressurizing device for a molding die according to claim 1, wherein: A limiting plate extending outward is provided on the outer side surface of the rotating shaft; the lower end of the first spring is fixed on the mounting seat, and the upper end is fixedly connected to the lower end surface of the limiting plate.

4. The pressurizing device for a molding die according to claim 1, wherein: A plurality of mounting sleeves are provided at the lower end of the mounting seat, and each mounting sleeve is coaxially arranged with each connecting hole; the reset mechanism is arranged in the mounting sleeve; the ejector pin passes through the connecting hole and the mounting sleeve and is connected to the reset mechanism.

5. The pressurizing device for a molding die according to claim 4, wherein: The reset mechanism is a second spring, a limiting shoulder is provided on the ejector pin, and the second spring is arranged between the limiting shoulder and the bottom surface of the mounting sleeve.

6. The pressurizing device for a molding die according to claim 1, wherein: The lower end of the ejector pin is provided with a rounded structure.

7. The pressurizing device for a molding die according to claim 1, wherein: A pressure plate for connecting with a driving mechanism is provided at the upper end of the ejector pin.

8. The molding die is characterized in that: It comprises a pressurizing device for a molding die as described in any one of claims 1 to 7.

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