Forming die convenient for stripping

Abstract

The utility model relates to the technical field of dies, and discloses a forming die convenient for stripping, which comprises a base, a lower die fixedly mounted on the upper surface of the base, a lifting component fixedly mounted above the base, an upper die arranged inside the lifting component, and a stripping component arranged inside the upper die. According to the forming mold convenient for stripping, through cooperation of an N-shaped air hole, a groove, an electric push rod and a stripping plate, when a lifting assembly is started to drive an upper mold to move upwards for stripping, an injection molding part is limited, and the situation that the injection molding part is adhered to the upper mold, is driven to move upwards by a certain distance and then falls downwards to be damaged is avoided; and meanwhile, through cooperation of a moving groove, an air bag, a moving plate, a limiting plate, a guide rod and an air pump, in the process that the stripper plate keeps attached to the injection molding part, the injection molding part can be slightly vibrated, and stripping of the injection molding part is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a molding mold which is convenient for removing materials. Background Art

[0002] The molding mold, also known as the mold, is a mold made in proportion to the shape and structure of the actual object. When in use, the raw material is injected into the lower mold. The raw material is extruded into a specified shape by closing the upper and lower molds. After the raw material is cooled, the raw material is molded. The molded raw material needs to be demolded to facilitate the removal of the molded raw material.

[0003] According to a publicly disclosed molding die that is easy to demold (publication number: CN219381418U), in the above application, through the arrangement of a cross gear box, a hand wheel, a handle, a threaded rod, a movable column, a limit block and a limit groove, when the upper mold and the lower mold are fitted together, the limit block on the top of the movable column will extend into the limit groove of the upper mold of the mold, lift the movable column, and drive the upper mold of the mold to move, and the cross gear box is fixed on the base, which will separate the upper mold and the lower mold of the mold, thereby achieving an effect that is easier to demold.

[0004] However, in actual use of the above-mentioned equipment, during the process of stripping, it is necessary to first use an electric push rod to drive the upper mold to move up and down to open the mold, and then the injection molded part can be ejected through the stripping component. However, during the process of the upper mold being detached, the injection molded part may stick to the upper mold, causing the injection molded part to move upward a short distance during the upward movement of the upper mold, and then fall downward due to the influence of gravity, causing it to collide with the inside of the lower mold, which may cause damage and affect the molding effect. In view of this, we propose a molding mold that is easy to strip. Utility Model Content

[0005] The utility model aims to provide a forming die which is convenient for stripping materials, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a molding die for easy stripping, comprising a base, a lower die is fixedly mounted on the upper surface of the base, a lifting assembly is fixedly mounted above the base, an upper die is arranged inside the lifting assembly, a stripping assembly is arranged inside the upper die, and the stripping assembly comprises:

[0007] N-type vent holes, the N-type vent holes are opened on the inner top surface of the upper mold;

[0008] A groove, wherein the groove is formed on the inner top surface of the upper mold, an electric push rod is fixedly installed on the inner top surface of the groove, a stripping plate is fixedly installed on the bottom end of the electric push rod, and when the electric push rod is started, the stripping plate can be driven to perform linear motion in the up and down directions;

[0009] A movable groove, wherein the movable groove is provided on the bottom surface of the stripping plate, an airbag is fixedly installed on the inner top surface of the movable groove, a movable plate is fixedly installed on the bottom surface of the airbag, and when the airbag expands, the movable plate is driven to move downward, a limit plate is fixedly installed on the inner wall surface of the movable groove, and a guide rod is fixedly installed on the upper surface of the movable plate;

[0010] An air pump is fixedly mounted on the upper surface of the upper mold.

[0011] Preferably, the outer wall of the stripping plate is in contact with the inner wall of the upper mold, and the inner wall of the upper mold guides and limits the movement of the stripping plate, so that the movement of the stripping plate remains vertical in the up and down directions.

[0012] Preferably, the outer wall of the movable plate and the inner wall of the movable groove are in contact with each other, and the upper end of the guide rod passes through the bottom surface of the limit plate. The limit plate guides and limits the movement of the guide rod, so that the movement of the movable plate maintains vertical movement in the up and down directions.

[0013] Preferably, the air delivery end of the air pump passes through the upper surface of the upper mold and the upper surface of the stripper plate and is fixedly connected to the upper surface of the airbag.

[0014] Preferably, a limiting ring is fixedly installed inside the N-type air vent, and a sponge plug is arranged above the limiting ring.

[0015] Preferably, the outer wall of the sponge plug fits with the inner wall of the N-shaped air vent.

[0016] Compared with the prior art, the utility model provides a forming die that is easy to remove materials and has the following beneficial effects:

[0017] 1. The molding mold which is convenient for stripping can limit the injection molded parts when the lifting component is started to drive the upper mold to move upward for stripping through the cooperation of the N-shaped vent holes, grooves, electric push rods and stripping plates, so as to avoid the injection molded parts from sticking to the upper mold, causing them to be driven to move upward for a distance and then fall downward to cause damage, thereby affecting the molding efficiency. At the same time, through the cooperation of the movable grooves, air bags, movable plates, limit plates, guide rods and air pumps, the injection molded parts can be slightly vibrated in the process of the stripping plate and the injection molded parts being kept in contact with each other, thereby accelerating the stripping of the injection molded parts.

[0018] 2. The forming mold which is easy to remove materials can filter the gas entering the upper mold through the N-type air vent through the cooperation of the sponge plug and the limit ring, so as to prevent dust and impurities in the outside air from entering the upper mold and affecting the movement of the moving plate. At the same time, the sponge plug can be quickly disassembled and replaced, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the structure inside the upper mold of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model at A;

[0022] Figure 4 It is a schematic structural diagram of the front section of the upper mold of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of B of the utility model.

[0024] In the figure: 1. base; 2. lower mold; 3. lifting assembly; 4. upper mold; 501. N-type air vent; 502. groove; 503. electric push rod; 504. stripping plate; 505. moving groove; 506. air bag; 507. moving plate; 508. limit plate; 509. guide rod; 510. air pump; 601. limit ring; 602. sponge plug. DETAILED DESCRIPTION

[0025] like Figure 1 -

[0026] Figure 5 As shown, the utility model provides a technical solution: a molding mold that is easy to strip, including a base 1, a lower mold 2 is fixedly installed on the upper surface of the base 1, a lifting component 3 is fixedly installed above the base 1, the lifting component 3 includes a support column, a top plate and a lifting hydraulic cylinder, when the lifting hydraulic cylinder is started, it can drive the upper mold 4 to move in the up and down directions, thereby completing the injection molding and demolding operations, the upper mold 4 is arranged inside the lifting component 3, and the stripping component is arranged inside the upper mold 4.

[0027] The stripping assembly includes: an N-type air hole 501, a groove 502, a movable groove 505 and an air pump 510. The N-type air hole 501 is provided on the inner top surface of the upper mold 4. The inner part of the upper mold 4 can be connected with the outside air through the N-type air hole 501. The groove 502 is provided on the inner top surface of the upper mold 4. An electric push rod 503 is fixedly installed on the inner top surface of the groove 502. A stripping plate 504 is fixedly installed on the bottom end of the electric push rod 503. When the electric push rod 503 is started, the stripping plate 504 can be driven to move linearly in the up and down directions. When the stripping When the plate 504 moves downward, the injection-molded parts inside the upper mold 4 can be stripped. The outer wall of the stripping plate 504 fits closely with the inner wall of the upper mold 4. When stripping is required, the lifting assembly 3 starts to drive the upper mold 4 to move upward, and the electric push rod 503 starts synchronously to drive the stripping plate 504 to move downward and always keep in contact with the injection-molded parts, so as to avoid the injection-molded parts being stuck to the inner wall of the upper mold 4 during the rising process, causing the injection-molded parts to fall downward and be damaged after a short movement of a distance.

[0028] When the stripper plate 504 moves downward, outside air can enter the upper mold 4 through the N-type air vent 501, avoiding the formation of a negative pressure environment inside the upper mold 4 that hinders the movement of the stripper plate 504 and affects the stability of the movement of the stripper plate 504.

[0029] The movable groove 505 is opened on the bottom surface of the stripping plate 504, and the airbag 506 is fixedly installed on the inner top surface of the movable groove 505, and the movable plate 507 is fixedly installed on the bottom surface of the airbag 506. The outer wall of the movable plate 507 fits with the inner wall of the movable groove 505, and the limit plate 508 is fixedly installed on the inner wall surface of the movable groove 505. The upper surface of the movable plate 507 is fixedly installed with a guide rod 509, and the upper end of the guide rod 509 passes through the bottom surface of the limit plate 508. The movement of the movable plate 507 is guided and limited by the cooperation of the set guide rod 509 and the limit plate 508, so that the movable plate 507 always maintains a linear movement in the up and down direction. The air pump 510 is fixedly installed on the upper surface of the upper mold 4, and the air supply end of the air pump 510 passes through the upper surface of the upper mold 4 and the upper surface of the stripping plate 504 and is fixedly connected to the upper surface of the airbag 506.

[0030] When the air pump 510 is started, air can be inflated into the airbag 506, so that the airbag 506 expands and pushes the movable plate 507 downward. During the material removal process, the air pump 510 can be started to quickly inflate and deflate the airbag 506, so that the movable plate 507 can move up and down quickly and reciprocatingly over a very short distance, thereby slightly impacting the injection molded part and accelerating the separation between the upper mold 4 and the injection molded part.

[0031] A limit ring 601 is fixedly installed inside the N-type air vent 501, and a sponge plug 602 is arranged above the limit ring 601. The outer wall of the sponge plug 602 fits with the inner wall of the N-type air vent 501. The sponge plug 602 can filter the air entering the upper mold 4 through the N-type air vent 501 to prevent dust and impurities in the outside air from entering the upper mold 4 and affecting the movement of the upper mold 4. At the same time, the limit ring 601 can limit the sponge plug 602. When the sponge plug 602 needs to be disassembled and replaced after long-term use, the sponge plug 602 can be directly pulled out and replaced with a new sponge plug 602. The operation is simple and convenient.

[0032] In the utility model, during use, when the injection molded part is cooled and needs to be stripped, the lifting component 3 is started to drive the upper mold 4 to move upward for stripping. While the upper mold 4 moves upward, the electric push rod 503 is started to drive the stripping plate 504 to move downward to always keep in contact with the injection molded part, so as to avoid the upper mold 4 moving upward with the injection molded part. At the same time, while the stripping plate 504 keeps in contact with the injection molded part, the air pump 510 is started to quickly and repeatedly inflate and deflate the airbag 506, so that the airbag 506 drives the moving plate 507 to slightly impact and vibrate the injection molded part, thereby accelerating the stripping speed of the injection molded part.

[0033] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A molding die for easy stripping, comprising a base (1), a lower die (2) fixedly mounted on the upper surface of the base (1), a lifting assembly (3) fixedly mounted above the base (1), an upper die (4) disposed inside the lifting assembly (3), characterized in that: A stripping assembly is disposed inside the upper mold (4), and the stripping assembly comprises: N-type air holes (501), the N-type air holes (501) are opened on the inner top surface of the upper mold (4); A groove (502), wherein the groove (502) is provided on the inner top surface of the upper mold (4), an electric push rod (503) is fixedly installed on the inner top surface of the groove (502), and a stripping plate (504) is fixedly installed at the bottom end of the electric push rod (503); A movable groove (505), wherein the movable groove (505) is provided on the bottom surface of the stripping plate (504), an air bag (506) is fixedly mounted on the inner top surface of the movable groove (505), a movable plate (507) is fixedly mounted on the bottom surface of the air bag (506), a limiting plate (508) is fixedly mounted on the inner wall surface of the movable groove (505), and a guide rod (509) is fixedly mounted on the upper surface of the movable plate (507); An air pump (510), wherein the air pump (510) is fixedly mounted on the upper surface of the upper mold (4).

2. A molding die for easy stripping according to claim 1, characterized in that: The outer wall of the stripping plate (504) and the inner wall of the upper mold (4) are in contact with each other.

3. A molding die for easy stripping according to claim 1, characterized in that: The outer wall of the movable plate (507) and the inner wall of the movable groove (505) are in contact with each other, and the upper end of the guide rod (509) passes through the bottom surface of the limiting plate (508).

4. A molding die for easy stripping according to claim 1, characterized in that: The air delivery end of the air pump (510) penetrates the upper surface of the upper mold (4) and the upper surface of the stripper plate (504) and is fixedly connected to the upper surface of the air bag (506).

5. A molding die for easy stripping according to claim 1, characterized in that: A limit ring (601) is fixedly installed inside the N-shaped air vent (501), and a sponge plug (602) is arranged above the limit ring (601).

6. A molding die for easy stripping according to claim 5, characterized in that: The outer wall of the sponge plug (602) and the inner wall of the N-shaped air vent (501) are in contact with each other.

Images