Integrated lock catch push rod

Abstract

The utility model discloses an integrated lock catch push rod, which relates to the technical field of injection molding processing and comprises a device frame and a push rod assembly, an injection molding assembly is erected in the device frame, and the push rod assembly is fixedly connected to the center of the bottom of the injection molding assembly. According to the integrated lock catch push rod, the push rod assembly is installed under the injection molding assembly, and limiting frames symmetrically arranged on the left side and the right side of a hydraulic push rod are used in cooperation with a limiting column structure, so that an injection molding part can be pushed, demolding is facilitated, and meanwhile the situation that the whole structure is subjected to interference operation, and consequently the injection molding part is damaged can be avoided; and in addition, the lower mold base is fixed in the device frame, stable and tight butt joint of the upper mold base and the lower mold base can be ensured to the maximum extent in cooperation with supporting of the overall structure of the push rod assembly, meanwhile, the deviation problem during butt joint on the structure can be avoided in cooperation with use of a guide column, and the influence on injection molding part forming is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an integrated lock push rod. Background Art

[0002] The push rod is an indispensable component in the injection mold. Its main function is to realize the molding and demoulding of complex parts in the mold during injection molding; demoulding: pushing the parts in the mold out of the mold to facilitate the opening and closing of the mold; molding: during the molding process, the push rod can push the plastic material to fill the cavity in the mold and fully compact the material to obtain a perfect molding effect; calibration of mold parts: in plastic molding, due to the influence of the mold's use time and temperature, slight misalignment may occur inside the mold, and the push rod can achieve precise positioning of the parts by fine-tuning the mold parts.

[0003] Conventional mechanical push rods mainly use the pressure of the mold during the injection molding process to push the push rod through a mechanical connection to push the parts in the mold for molding and demolding. This method is relatively simple, but it is easy to cause mold damage when the pushing force and distance are uneven.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an integrated locking push rod is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an integrated lock push rod to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated locking push rod, comprising a device frame and a push rod assembly, the internal frame of the device frame is provided with an injection molding assembly, the push rod assembly is fixedly connected to the bottom center of the injection molding assembly, the push rod assembly comprises a support frame, a base, a hydraulic push rod, a locking frame, a damping spring column, a limit frame, a limit column and a push block, the internal bottom end of the support frame is installed with a base, and the top of the base is vertically installed with a hydraulic push rod, and the top of the hydraulic push rod is connected to the locking frame, and the damping spring columns are vertically installed on the left and right sides of the locking frame, the internal left and right sides of the support frame are provided with limit frames, and the internal bottom end of the limit frame is vertically installed with a limit column, and the top of the locking frame is connected with a push block.

[0007] Furthermore, guide columns are symmetrically passed through the left and right sides of the injection molding component, and a stabilizing seat is installed at the bottom of the guide column. A hydraulic cylinder is symmetrically installed on the top of the injection molding component.

[0008] Furthermore, the injection molding assembly is slidably connected to the guide column, and the stabilizing seat is arranged between the push rod assembly and the device frame.

[0009] Furthermore, the injection molding assembly includes an upper mold base, an injection port and an upper mold. The top of the upper mold base is provided with an injection port, and the bottom of the upper mold base is installed with an upper mold.

[0010] Furthermore, the injection molding assembly also includes a lower mold base and a lower mold. The lower mold base is arranged directly below the upper mold base, and the lower mold base is installed in the center of the lower mold base.

[0011] Furthermore, the guide column penetrates both the upper die base and the lower die base, and the guide column is fixedly connected to the stabilizing base.

[0012] Furthermore, both left and right sides of the lock frame are provided with horizontal extension structures and are located inside the limiting frame, and the lock frame and the limiting frame are slidably connected, and the limiting frame is attached to the side of the lock frame.

[0013] Furthermore, the damping spring column is symmetrically installed on the side extension structure surface of the lock frame, and the damping spring column is located inside the limit frame. The push block is arranged at the top opening of the support frame and is fixedly connected to the limit frame.

[0014] The utility model provides an integrated lock push rod, which has the following beneficial effects:

[0015] 1. The utility model, by installing a push rod assembly at the bottom of the injection molding assembly, utilizes the telescopic adjustment of the hydraulic push rod in the vertical direction, drives the push rod to move by the pressure of the internal liquid, and realizes the demoulding of the parts in the mold. Compared with the mechanical push rod, the hydraulic push rod can better control the pushing force and speed, and avoid the risk of mold damage. In addition, by installing a lock frame at the bottom of the hydraulic push rod, in conjunction with the limit frames on the left and right sides, the telescopic distance of the hydraulic push rod is effectively controlled within the internal vertical height of the limit frame, and the damping spring column prevents excessive problems when pushing vertically. It plays a role of structural buffering, and the limit column prevents the hydraulic push rod from driving the top push block of the lock frame to move downward excessively when shrinking, and plays a role of structural locking and limiting. By using the above structure, while ensuring that the entire structure can operate stably, it can also provide a certain degree of locking and limiting for its own operation, avoiding the occurrence of interference operation of structural activities, which causes the lower mold base, the lower mold and the molded parts to be damaged.

[0016] 2. The utility model vertically penetrates the guide columns on the left and right sides of the upper die base and the lower die base respectively, and under the structural operation of the hydraulic cylinder, the upper die base can be translated up and down along the surface of the guide columns in the vertical direction to ensure the left and right stability of its structure during movement, and also makes the upper die base and the lower die base on the same vertical central axis to ensure the structural accuracy of the upper mold and the lower die base when docking to the greatest extent, and by fixing the left and right sides of the lower die base to the inner wall of the device frame, the structures of the upper die base and the lower die base can be docked and separated, which can ensure the stability of operation to the greatest extent, reduce structural errors, and improve the molding accuracy of injection molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the side structure of the body of an integrated lock push rod of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a push rod assembly of an integrated lock push rod of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of a lock frame of an integrated lock push rod of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the three-dimensional structure of a limiting frame and a limiting column of an integrated lock push rod.

[0021] In the figure: 1. device frame; 2. injection molding assembly; 201. upper mold base; 202. injection molding port; 203. upper mold; 204. lower mold base; 205. lower mold; 3. push rod assembly; 301. support frame; 302. base; 303. hydraulic push rod; 304. locking frame; 305. damping spring column; 306. limit frame; 307. limit column; 308. push block; 4. guide column; 5. stabilizing seat; 6. hydraulic cylinder. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] like Figures 1 to 4As shown, an integrated lock push rod comprises a device frame 1 and a push rod assembly 3. The device frame 1 is provided with an injection molding assembly 2 inside. The push rod assembly 3 is fixedly connected to the bottom center of the injection molding assembly 2. The push rod assembly 3 comprises a support frame 301, a base 302, a hydraulic push rod 303, a lock frame 304, a damping spring column 305, a limit frame 306, a limit column 307 and a push block 308. The base 302 is installed at the bottom end of the support frame 301, and a hydraulic push rod is vertically installed on the top of the base 302. The top of the hydraulic push rod 303 is connected to a locking frame 304, and damping spring columns 305 are vertically installed on the left and right sides of the locking frame 304. The left and right sides of the support frame 301 are provided with limit frames 306, and the inner bottom of the limit frame 306 is vertically installed with a limit column 307. The top of the locking frame 304 is connected to a push block 308. The left and right sides of the locking frame 304 are both provided with horizontal extension structures and are located inside the limit frame 306. The locking frame 304 and the limit frame The support frame 301 is slidably connected to each other, and the limit frame 306 is attached to the side of the lock frame 304. The damping spring column 305 is symmetrically installed on the surface of the extended structure on the side of the lock frame 304, and the damping spring column 305 is located inside the limit frame 306. The push block 308 is set at the top opening of the support frame 301 and is fixedly connected to the limit frame 306. The hydraulic push rod 303 is adjusted in the vertical direction, and the pressure of the internal liquid is used to drive the push rod to move, so that the structure can be extended and retracted in the vertical direction. , to realize the demoulding of the parts in the lower mold 205. In addition, through the lock frame 304 installed at the bottom of the hydraulic push rod 303, in cooperation with the limit frames 306 on the left and right sides, the telescopic distance of the hydraulic push rod 303 is effectively controlled within the internal vertical height of the limit frame 306. At the same time, the damping spring column 305 prevents excessive problems from occurring during vertical upward pushing and acts as a structural buffer, while the limit column 307 prevents the hydraulic push rod 303 from driving the top push block 308 of the lock frame 304 to move downward excessively when it contracts.

[0024] The left and right sides of the injection molding component 2 are symmetrically penetrated by guide columns 4, and a stabilizing seat 5 is installed at the bottom of the guide column 4. A hydraulic cylinder 6 is symmetrically installed on the top of the injection molding component 2. The injection molding component 2 and the guide column 4 are slidably connected. The stabilizing seat 5 is arranged between the push rod component 3 and the device frame 1. The injection molding component 2 includes an upper mold base 201, an injection port 202 and an upper mold 203. The top of the upper mold base 201 is provided with an injection port 202, and the bottom of the upper mold base 201 is installed with an upper mold 203. The injection molding component 2 also includes a lower mold base 204 and a lower mold 205. The lower mold base 204 is arranged directly below the upper mold base 201, and the inner part of the lower mold base 204 is provided with a lower mold base 204. A lower die base 204 is installed in the center of the part, and the guide column 4 penetrates the upper die base 201 and the lower die base 204 at the same time, and the guide column 4 is fixedly connected to the stabilizing base 5. By vertically penetrating the guide column 4 on the left and right sides of the upper die base 201 and the lower die base 204 respectively, and under the structural operation of the hydraulic cylinder 6, the upper die base 201 can be translated up and down along the surface of the guide column 4 in the vertical direction to ensure the left and right stability of its structure during movement, and at the same time, the upper die base 201 and the lower die base 204 are on the same vertical central axis at the same time, so as to maximize the structural accuracy when the upper die 203 and the lower die base 204 are docked.

[0025] In summary, if Figures 1 to 4 As shown, when the integrated lock push rod is used, firstly, a release agent is evenly applied to the inner surfaces of the upper mold 203 and the lower mold 205, and then the hydraulic cylinder 6 located at the top of the device frame 1 is started. As the hydraulic cylinder 6 is adjusted in the vertical direction, the upper mold base 201 connected to the bottom thereof is vertically pushed down, and the upper mold base 201 is uniformly translated downward along the guide column 4 together with the upper mold 203 at the bottom, and finally the upper mold 203 installed at the bottom of the upper mold base 201 is structurally docked with the lower mold 205 in the center of the lower mold base 204;

[0026] After confirming that the entire injection molding assembly 2 is well connected and has no problems, the injection port 202 on the top of the upper mold base 201 can be used to inject the molten raw material into the upper mold 203 and the lower mold 205 until an appropriate amount of material is injected. The injection molding operation is then completed, and then the injection molding part is gradually cooled and formed.

[0027] When the injection molded part is cooled, with the operation of the hydraulic cylinder 6 again, the closed and docked upper mold 203 and lower mold 205 will be structurally separated. At the same time, the hydraulic push rod 303 located at the top of the base 302 inside the support frame 301 will extend and retract in the vertical direction, and drive the push block 308 connected to it through the locking frame 304 at the top to move upward. With the push of the hydraulic push rod 303, the locking frame 304 will simultaneously slide along the inside of the limit frame 306 until the locking frame 304 is lifted to the top of the inside of the limit frame 306, and stops lifting under the buffering of the contraction of the damping spring column 305 structure. At this time, the push block 308 also synchronously completes the ejection of the injection molded part from the lower mold 205 to complete the demoulding operation.

[0028] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An integrated lock push rod, comprising a device frame (1) and a push rod assembly (3), characterized in that: The device frame (1) is provided with an injection molding assembly (2) inside, the push rod assembly (3) is fixedly connected to the bottom center of the injection molding assembly (2), the push rod assembly (3) comprises a support frame (301), a base (302), a hydraulic push rod (303), a locking frame (304), a damping spring column (305), a limiting frame (306), a limiting column (307) and a push block (308), the bottom end of the support frame (301) is provided with a base (302), and the bottom A hydraulic push rod (303) is vertically installed on the top of the seat (302), and a locking frame (304) is connected to the top of the hydraulic push rod (303), and damping spring columns (305) are vertically installed on the left and right sides of the locking frame (304), and limiting frames (306) are arranged on the left and right sides of the interior of the support frame (301), and limiting columns (307) are vertically installed on the inner bottom end of the limiting frame (306), and a push block (308) is connected to the top of the locking frame (304).

2. The integrated lock push rod according to claim 1, characterized in that: Guide columns (4) are symmetrically passed through the left and right sides of the injection molding component (2), and a stabilizing seat (5) is installed at the bottom of the guide column (4). A hydraulic cylinder (6) is symmetrically installed at the top of the injection molding component (2).

3. The integrated lock push rod according to claim 2, characterized in that: The injection molding component (2) is slidably connected to the guide column (4), and the stabilizing seat (5) is arranged between the push rod component (3) and the device frame (1).

4. The integrated lock push rod according to claim 1, characterized in that: The injection molding assembly (2) comprises an upper mold base (201), an injection port (202) and an upper mold (203); the top of the upper mold base (201) is provided with the injection port (202), and the bottom of the upper mold base (201) is installed with the upper mold (203).

5. The integrated lock push rod according to claim 4, characterized in that: The injection molding assembly (2) further comprises a lower mold base (204) and a lower mold (205); the lower mold base (204) is arranged directly below the upper mold base (201), and the lower mold base (204) is installed in the center of the lower mold base (204).

6. The integrated lock push rod according to claim 2, characterized in that: The guide column (4) passes through both the upper die seat (201) and the lower die seat (204), and the guide column (4) is fixedly connected to the stabilizing seat (5).

7. The integrated lock push rod according to claim 1, characterized in that: The left and right sides of the locking frame (304) are both provided with horizontal extension structures and are located inside the limiting frame (306), and the locking frame (304) and the limiting frame (306) are slidably connected, and the limiting frame (306) is attached to the side of the locking frame (304).

8. The integrated lock push rod according to claim 7, characterized in that: The damping spring column (305) is symmetrically installed on the side extension structure surface of the locking frame (304), and the damping spring column (305) is located inside the limiting frame (306). The push block (308) is arranged at the top opening of the support frame (301) and is fixedly connected to the limiting frame (306).

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