Demolding mechanism capable of quickly opening and closing between movable mold and static mold

Abstract

The utility model relates to the technical field of molds, in particular to a demolding mechanism capable of quickly opening and closing a movable mold and a static mold, which comprises the movable mold and the static mold, an auxiliary mechanism is arranged on the movable mold and is used for demolding a product, and the auxiliary mechanism comprises a demolding component, a demolding component and a demolding component, the demolding component comprises side plates fixed at the left end and the right end of the bottom of the movable mold, and a base is fixed between the bottoms of the side plates at the two ends; a sliding groove is formed in the top of the base, a lower inclined block is slidably mounted on the sliding groove, a mounting frame is fixed to the right end of the top of the base, a first air cylinder is mounted on the outer wall of the mounting frame, the output end of the first air cylinder is connected with the lower inclined block, guide rods are fixed to the four corners of the top of the base, a movable seat is slidably mounted on the guide rods, and a plurality of ejector pins are mounted at the upper end of the movable seat. The demoulding mechanism drives the inclined block to link the ejector pin to lift through the cylinder, so that quick and stable demoulding is realized; and the ejector pin is accurately returned during resetting, the forming flatness of the product is not influenced, the structure is reliable, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a demolding mechanism that enables rapid opening and closing between the moving mold and the stationary mold. Background Technology

[0002] In manufacturing processes such as injection molding, die casting, or composite material molding, the moving mold (moving side) and the stationary mold (fixed side) of the mold need to be opened and closed frequently to achieve efficient production.

[0003] According to CN216369914U, a demolding mechanism for injection molds is disclosed. This technology discloses "a packaging box pressing mold for packaging box processing, which relates to the field of food packaging box processing technology. It includes a machine base, a frame fixedly installed on the top surface of the machine base, a hydraulic cylinder fixedly installed on the top surface of the frame, an upper mold installed at the output end of the hydraulic cylinder, a lower mold fixedly installed on the top surface of the machine base, a long groove opened on the surface of the machine base, a sliding groove opened on the side wall of the long groove, a sliding rod slidably connected to the inner wall of the sliding groove, a protective plate fixedly installed at one end of the sliding rod, and an auxiliary mechanism set inside the lower mold." The technical solution has the following effects: "In the demolding process, if demolding difficulties are encountered, the operator can pull the handle to assist demolding, which improves processing efficiency. At the same time, the structure is simple, the cost is low, and the practicality is high."

[0004] In the above scheme, the ejector block retracts into the circular groove by the pressure of the spring rebound. However, due to the unevenness of the spring force, the ejector block may not be fully aligned after entering the circular groove, so that the surface of the ejector block and the edge of the circular groove cannot remain flat, which in turn causes unevenness inside the lower mold and ultimately affects the molding quality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a demolding mechanism that enables rapid opening and closing between the moving mold and the stationary mold. This demolding mechanism achieves rapid and stable demolding by using a cylinder to drive the inclined block and the ejector pin to move up and down. During reset, the ejector pin returns to its precise position without affecting the flatness of the product. The mechanism is reliable and highly efficient.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a demolding mechanism for rapid opening and closing between a moving mold and a stationary mold, comprising a moving mold and a stationary mold, wherein the moving mold is provided with an auxiliary mechanism for product demolding, the auxiliary mechanism comprising:

[0007] The demolding assembly includes side plates fixed to the left and right ends of the bottom of the moving mold, a base fixed between the bottom of the two side plates, a groove opened on the top of the base, a lower inclined block slidably installed on the groove, a mounting bracket fixed to the right end of the top of the base, a first cylinder installed on the outer wall of the mounting bracket, and the output end of the first cylinder connected to the lower inclined block, guide rods fixed at the four corners of the top of the base, movable seats slidably installed on the guide rods, several ejector pins installed on the upper end of the movable seats, and an upper inclined block fixed at the bottom of the movable seats;

[0008] The reinforcing components are installed at both ends of the stationary mold and are used for reinforcement after the moving mold and the stationary mold are closed.

[0009] Preferably, the reinforcing component includes a shaft frame fixed to the outer walls of the left and right ends of the stationary mold, a second cylinder is installed on the upper end of the shaft frame, a rack is fixed to the output end of the second cylinder, a gear is rotatably installed inside the lower end of the shaft frame and meshes with the rack for transmission, a shaft plate is fixed to the outer wall of the gear, and a fixing plate is installed on the shaft plate.

[0010] Preferably, the reinforcing component further includes mounting holes at the four corners inside the shaft plate, and the shaft plate is fixed to the fixing plate by bolts through the mounting holes.

[0011] Preferably, the auxiliary mechanism further includes a cavity formed in the middle of the upper end of the side plate.

[0012] Preferably, the demolding assembly further includes limiting seats fixed at both ends of the top of the base and used to limit the downward inclined block.

[0013] Preferably, the lower inclined block and the upper inclined block have the same structure and each has two inclined surfaces.

[0014] Beneficial effects

[0015] This invention provides a demolding mechanism that enables rapid opening and closing between the moving mold and the stationary mold. Compared with the prior art, it has the following advantages:

[0016] 1. After the moving mold and the stationary mold are opened, the lower inclined block is driven to move along the slide groove through the output end of the first cylinder. The lower inclined block drives the movable seat to rise along the guide rod through the upper inclined block. At the same time, the movable seat drives the ejector pin to eject the product formed in the moving mold for quick demolding. Furthermore, during reset, the ejector pin can be stably lowered into the moving mold to avoid affecting the flatness of the product during the molding process.

[0017] 2. After the moving mold and the stationary mold are closed, the rack is driven to retract through the output end of the second cylinder. The rack drives the fixed plate on the shaft plate to flip inward through the gear, thereby clamping the moving mold and the stationary mold, improving the stability of mold closing and preventing mold displacement during injection. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a schematic diagram of the demolding component in this utility model;

[0021] Figure 4 This is a partial view of the demolding component in this utility model;

[0022] Figure 5 This is a schematic diagram of the reinforcement component in this utility model.

[0023] In the diagram: 1. Moving mold; 2. Stationary mold; 3. Auxiliary mechanism; 31. Demolding assembly; 311. Side plate; 312. Base; 313. Slide groove; 314. Lower inclined block; 315. Mounting bracket; 316. First cylinder; 317. Guide rod; 318. Movable seat; 319. Ejector pin; 3110. Upper inclined block; 3111. Limiting seat; 32. Reinforcing assembly; 321. Shaft bracket; 322. Second cylinder; 323. Rack; 324. Gear; 325. Shaft plate; 326. Fixing plate; 327. Mounting hole; 33. Cavity. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a demolding mechanism for rapid opening and closing between a moving mold and a stationary mold, comprising a moving mold 1 and a stationary mold 2, wherein an auxiliary mechanism 3 is provided on the moving mold 1 for product demolding, and the auxiliary mechanism 3 includes:

[0026] The demolding assembly 31 includes side plates 311 fixed to the left and right ends of the bottom of the moving mold 1, a base 312 fixed between the bottom of the two side plates 311, a groove 313 opened on the top of the base 312, a lower inclined block 314 slidably installed on the groove 313, a mounting bracket 315 fixed on the right end of the top of the base 312, a first cylinder 316 installed on the outer wall of the mounting bracket 315, and the output end of the first cylinder 316 connected to the lower inclined block 314, guide rods 317 fixed at the four corners of the top of the base 312, a movable seat 318 slidably installed on the guide rods 317, a number of ejector pins 319 installed on the upper end of the movable seat 318, and an upper inclined block 3110 fixed at the bottom of the movable seat 318.

[0027] The reinforcing component 32 is set at both ends of the stationary mold 2 and is used for reinforcement after the moving mold 1 and the stationary mold 2 are closed.

[0028] In this embodiment, after the moving mold 1 and the stationary mold 2 are opened, the lower inclined block 314 is driven to move along the slide groove 313 through the output end of the first cylinder 316. The lower inclined block 314 drives the movable seat 318 to rise along the guide rod 317 through the upper inclined block 3110. At the same time, the movable seat 318 drives the ejector pin 319 to eject the product formed in the moving mold 1 and quickly demold it. Furthermore, when resetting, the ejector pin 319 can stably descend into the moving mold 1 to avoid affecting the flatness of the product during the molding process.

[0029] Specifically, the reinforcing component 32 includes a shaft frame 321 fixed to the outer walls of the left and right ends of the stationary mold 2. A second cylinder 322 is installed on the upper end of the shaft frame 321. A rack 323 is fixed to the output end of the second cylinder 322. A gear 324 is rotatably installed inside the lower end of the shaft frame 321 and meshes with the rack 323 for transmission. A shaft plate 325 is fixed to the outer wall of the gear 324. A fixing plate 326 is installed on the shaft plate 325.

[0030] In this embodiment, after the moving mold 1 and the stationary mold 2 are closed, the output end of the second cylinder 322 drives the rack 323 to retract. The rack 323 drives the fixing plate 326 on the shaft plate 325 to flip inward through the gear 324, thereby clamping the moving mold 1 and the stationary mold 2, improving the mold closing stability and preventing the mold from shifting during injection.

[0031] Specifically, the reinforcing component 32 also includes mounting holes 327 at the four corners inside the shaft plate 325, and the shaft plate 325 is fixed to the fixing plate 326 by bolts through the mounting holes 327.

[0032] In this embodiment, the fixing plate 326 can be quickly disassembled and assembled, making it easy to replace or maintain, adapting to different mold requirements, and improving the flexibility of the mechanism.

[0033] Specifically, the auxiliary mechanism 3 also includes a cavity 33 located in the middle of the upper part of the side plate 311.

[0034] In this embodiment, the cavity 33 on the side plate 311 provides clearance space for the flipping of the fixing plate 326, preventing it from colliding with the side plate 311 during mold closing and reinforcement, and ensuring smooth operation of the mechanism.

[0035] Specifically, the demolding assembly 31 also includes limiting seats 3111 fixed at both ends of the top of the base 312 and used to limit the downward inclined block 314.

[0036] Specifically, the lower inclined block 314 and the upper inclined block 3110 have the same structure and both have two inclined surfaces.

[0037] In this embodiment, the double-sloping surface design provides a more stable thrust transmission, making the ejector pin 319 rise more smoothly, reducing impact and improving demolding efficiency.

[0038] The working principle and usage process of this utility model are as follows: First, after the moving mold 1 and the stationary mold 2 are closed, the output end of the second cylinder 322 drives the rack 323 to retract. The rack 323 drives the fixing plate 326 on the shaft plate 325 to flip inward through the gear 324, thereby clamping the moving mold 1 and the stationary mold 2, improving the mold closing stability and preventing the mold from shifting during injection.

[0039] After the moving mold 1 and the stationary mold 2 are opened, the lower inclined block 314 is driven to move along the slide groove 313 through the output end of the first cylinder 316. The lower inclined block 314 drives the movable seat 318 to rise along the guide rod 317 through the upper inclined block 3110. At the same time, the movable seat 318 drives the ejector pin 319 to eject the product formed in the moving mold 1 and quickly demold it. Furthermore, when resetting, the ejector pin 319 can stably descend into the moving mold 1 to avoid affecting the flatness of the product during the molding process.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stripper mechanism for enabling quick opening and closing of a movable die and a stationary die, comprising a movable die (1) and a stationary die (2), characterized in that: The movable mold (1) is provided with an auxiliary mechanism (3) and is used for product demolding, the auxiliary mechanism (3) comprises: The demolding assembly (31) comprises side plates (311) fixed at the left and right ends of the bottom of the movable mold (1), a base (312) fixed between the bottoms of the two end side plates (311), a sliding groove (313) opened at the top of the base (312), a lower inclined block (314) slidably installed on the sliding groove (313), a mounting bracket (315) fixed at the right end of the top of the base (312), a first air cylinder (316) installed on the outer wall of the mounting bracket (315), and the output end of the first air cylinder (316) is connected with the lower inclined block (314), a guide rod (317) fixed at each corner of the top of the base (312), a movable seat (318) slidably installed on the guide rod (317), a plurality of ejector pins (319) installed on the upper end of the movable seat (318), and an upper inclined block (3110) fixed at the bottom of the movable seat (318). The reinforcing assembly (32) is arranged at the left and right ends of the static mold (2) and is used for reinforcing the movable mold (1) and the static mold (2) after clamping.

2. The stripper mechanism for quick opening and closing of the movable die and the fixed die according to claim 1, characterized in that: The reinforcing assembly (32) comprises shaft supports (321) fixed on the outer walls of the left and right ends of the static mold (2), a second air cylinder (322) installed on the upper end of the shaft support (321), a rack (323) fixed on the output end of the second air cylinder (322), a gear (324) rotatably installed in the shaft support (321) and in meshing transmission with the rack (323), an axle plate (325) fixed on the outer wall of the gear (324), and a fixed plate (326) installed on the axle plate (325).

3. The stripper mechanism of claim 2, wherein: The reinforcing assembly (32) further comprises mounting holes (327) opened at the four corners in the interior of the axle plate (325), and the axle plate (325) is fixed with the fixed plate (326) through the mounting holes (327) and cooperating bolts.

4. The stripper mechanism of claim 1, wherein: The auxiliary mechanism (3) further comprises a cavity (33) opened at the middle of the upper end of the side plate (311).

5. The stripper mechanism for quick opening and closing of the movable die and the fixed die according to claim 1, characterized in that: The demolding assembly (31) further comprises limiting seats (3111) fixed at the two ends of the top of the base (312) and used for limiting the lower inclined block (314).

6. The stripper mechanism for quick opening and closing of the movable die and the fixed die according to claim 1, characterized in that: The lower inclined block (314) and the upper inclined block (3110) have the same structure and are both provided with two inclined surfaces.

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