Injection mold with layered sliding block synchronous ejection mechanism and method

Abstract

The invention relates to the technical field of injection molds, in particular to an injection mold with a layered sliding block synchronous ejection mechanism and a method thereof.The injection mold comprises a mold bottom plate, the four edges of the top of the mold bottom plate are each fixedly connected with two guide vertical rods, and the tops of the multiple sets of guide vertical rods are fixedly connected with a top cavity plate base; the middle of the top cavity plate base is designed to be hollowed out, multiple sides of the outer walls of the multiple sets of guide vertical rods are slidably connected with cavity plates, the inner walls of the multiple cavity plates are fixedly connected with mold opening mechanisms, and the outer walls of the multiple mold opening mechanisms are fixedly connected with cavity plate ejection and separation mechanisms in an annular array mode. Through the arrangement of the cavity plate, the mold opening mechanism and the cavity plate ejection and separation mechanism, the automatic production process of the injection mold is achieved, the production efficiency is improved, the integrity and quality of products are ensured, in the injection molding process, materials can be evenly distributed in the mold through the design of multiple sets of arc-shaped plates, and the product quality is improved. And uniform forming of the product is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and more specifically, the present invention relates to an injection mold and method with a layered slider synchronous ejection mechanism. Background Art

[0002] An injection mold refers to an important tool for molding plastic products. It injects molten plastic into the mold cavity through an injection molding machine, and after cooling and solidifying, the plastic products with the required shape are obtained. An injection mold usually consists of two major parts: a moving mold and a fixed mold. The moving mold is installed on the moving template of the injection molding machine, and the fixed mold is fixed on the fixed template of the injection molding machine. The two are precisely matched through guide pillars and guide sleeves. In the closed mold state, there is a precision-machined parting surface between the moving mold and the fixed mold. The parting surface is provided with a cavity system corresponding to the shape of the product, including key structures such as a main cavity, a gating system (sprue, runner, gate), and an exhaust groove. After the plastic particles are heated and plasticized in the barrel of the injection molding machine, they are injected into the cavity through the mold gating system under the high pressure of the screw. The melt is continuously pressurized during the pressure holding and compensation stage to ensure that the material fully fills every detail of the cavity. A complex water cooling system is embedded inside the mold, and the plastic is accelerated to solidify and take shape by circulating the cooling medium. After the molding cycle is completed, the moving mold and the fixed mold are separated along the parting surface, and the ejection mechanism (ejector rod, ejector plate, or pneumatic device) installed on the moving mold side ejects the molded product and its runner condensate smoothly during the mold opening stroke.

[0003] According to the patent document: CN111775401A, a thick-wall lens injection mold for multi-station layered injection molding is disclosed, which includes six stations. There is an intermediate rotating plate between the fixed mold and the moving mold. Rotating the intermediate rotating plate drives the product formed by the first-station injection to the subsequent second to sixth stations until the product is demolded. The fixed mold includes a fixed mold cavity I, a fixed mold cavity II, a fixed mold cavity III, and two air-blowing cooling devices. The moving mold includes a moving mold cavity I, a moving mold cavity II, a moving mold cavity III, and three air-blowing cooling devices. The intermediate rotating plate includes six intermediate cavities. The fixed mold cavity I, the intermediate cavity, and the moving mold cavity I form the primary molding cavity of the product. The fixed mold cavity II, the moving mold cavity II, and the intermediate cavity form the secondary molding cavity. The fixed mold cavity III, the moving mold cavity III, and the intermediate cavity form the tertiary molding cavity. The present invention can solve the problem of low efficiency of layered injection molding of thick-wall parts in the prior art.

[0004] In the manufacturing process of certain specific products, due to the complexity of the product structure, it is often necessary to set up multiple layers of sliders. After the injection molding process is completed, when the product is demolded from the sliders, multiple driving mechanisms are usually required to push the sliders out of the mold. This demolding method has low efficiency, complex structure, and high energy consumption. In addition, after the product is formed, its size usually remains the same as that of the injection molding groove, which means that when the product needs to be taken out, manual operation or additional tools are often required to remove the product from the mold. This approach not only increases the complexity of the operation but may also cause unnecessary damage to the product. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention provides an injection mold and method with a hierarchical slider synchronous ejection mechanism. The technical problem to be solved by the present invention is: after the injection molding process is completed, when the product is demolded from the sliders, multiple driving mechanisms are usually required to push the sliders out of the mold. This demolding method has low efficiency, complex structure, and high energy consumption. In addition, after the product is formed, its size usually remains the same as that of the injection molding groove, which means that when the product needs to be taken out, manual operation or additional tools are often required to remove the product from the mold. This approach not only increases the complexity of the operation but may also cause unnecessary damage to the product.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An injection mold with a hierarchical slider synchronous ejection mechanism, including a mold bottom plate. Two guiding vertical rods are fixedly connected to the four sides of the top of the mold bottom plate. A top cavity plate seat is fixedly connected to the tops of multiple groups of the guiding vertical rods. The middle of the top cavity plate seat is designed to be hollow. Multiple cavity plates are slidably connected to the outer walls of multiple sides of multiple groups of the guiding vertical rods. Open mold mechanisms are fixedly connected to the inner walls of multiple cavity plates. Cavity plate ejection and separation mechanisms are fixedly connected in a circular array to the outer walls of multiple open mold mechanisms;

[0008] Multiple cavity plates each include a cavity plate main body. Cavity plate surfaces are fixedly connected to the tops and bottoms of multiple cavity plate main bodies. Injection molding grooves are opened in the middles of multiple groups of cavity plate surfaces. Two guiding grooves are opened on the four sides of multiple groups of cavity plate surfaces. The guiding grooves opened on multiple groups of cavity plate surfaces are slidably connected to the outer walls of multiple groups of guiding vertical rods;

[0009] Multiple open mold mechanisms each include an injection molding pipe. The tops and bottoms of the outer walls of multiple injection molding pipes are fixedly connected to the inner walls of the injection molding grooves opened on multiple groups of cavity plate surfaces.

[0010] As a further solution of the present invention: a collar is fixedly connected to the outer wall of the injection molding pipe, and hydraulic push rods are fixedly connected in an annular array at the bottom of the collar. Through grooves are formed in an annular array on one side of the bottom of the collar on the outer wall of the injection molding pipe. The bottom ends of the plurality of hydraulic push rods are fixedly connected to a lifting ring, and the inner wall of the lifting ring is slidably connected to the outer wall of the injection molding pipe.

[0011] As a further solution of the present invention: rotating rods are rotatably connected in an annular array at the top of the lifting ring. The rotating rods are rotatably connected to expanding and contracting blocks on the side away from the lifting ring. Columnar expanding and contracting blocks are fixedly connected to the outer sides of the plurality of expanding and contracting blocks.

[0012] As a further solution of the present invention: columnar expanding and contracting rod connecting blocks are fixedly connected to the outer walls of the plurality of columnar expanding and contracting blocks, and columnar expanding and contracting rods are fixedly connected to the inner sides of the plurality of columnar expanding and contracting rod connecting blocks.

[0013] As a further solution of the present invention: the inner ends of the plurality of columnar expanding and contracting rods extend to the inner wall of the injection molding pipe through the plurality of through grooves formed in the outer wall of the injection molding pipe and are fixedly connected with arc-shaped plates, and the outer walls of the plurality of arc-shaped plates are in contact.

[0014] As a further solution of the present invention: the cavity plate ejection separation mechanisms each include a plurality of chute plates. The inner sides of the plurality of chute plates are fixedly connected in an annular array to the middle of the outer wall of the injection molding pipe. L-shaped ejection rod connecting plates are fixedly connected to the top and bottom of the plurality of chute plates on the side away from the injection molding pipe. The inner walls of the plurality of L-shaped ejection rod connecting plates on the side away from the chute plates are slidably connected to ejection rods.

[0015] As a further solution of the present invention: pulleys are rotatably connected to the inner ends of the plurality of ejection rods, and springs are sleeved on the outer walls of the plurality of ejection rods on the side inside the plurality of L-shaped ejection rod connecting plates.

[0016] As a further solution of the present invention: moving plates are slidably connected to one side of the plurality of chute plates. Partition plates are fixedly connected to the middle of the side of the plurality of moving plates away from the chute plates. Two rotating short rods are rotatably connected to the front and rear sides of the plurality of moving plates on the side close to the partition plates. The inclination angles of the plurality of groups of rotating short rods are opposite. One side of the plurality of partition plates is fixedly connected to the outer ends of the plurality of columnar expanding and contracting blocks.

[0017] As a further solution of the present invention: rotating blocks are rotatably connected to the sides of the plurality of groups of rotating short rods away from the moving plates. Lifting push plates are fixedly connected to the outer sides of the plurality of groups of rotating blocks. The outer sides of the plurality of groups of lifting push plates are in contact with the outer walls of the plurality of groups of pulleys.

[0018] In addition, the present invention also relates to an injection mold and method with a hierarchical slider synchronous ejection mechanism, including the following steps:

[0019] Step 1: Fix the mold bottom plate on the working table of the injection molding machine to ensure that the mold bottom plate is stable and immovable;

[0020] Step 2: Inject the molten material into multiple cavity plates arranged above the mold bottom plate through the injection molding machine. At this time, the material will be injection molded through multiple groups of arc-shaped plates arranged on the inner wall of the injection pipes fixed by the multiple cavity plates;

[0021] Step 3: After the product is formed, start multiple hydraulic push rods. Through the telescopic movement of the hydraulic push rods, push the lifting ring to rise. While the lifting ring rises, drive the expansion and contraction block and the columnar expansion and contraction rod to move outward and expand through the rotation of the rotating rod. At this time, the inner side of the arc-shaped plate no longer adheres to the formed product, completing automatic demolding;

[0022] Step 4: The operator takes out the demolded product through a hook or other tools. At the same time, the lifting ring descends. Through the rotation of the rotating rod, the expansion and contraction block and the columnar expansion and contraction rod move inward and reset, thereby driving the arc-shaped plate to move inward and reset to prepare for the next injection molding;

[0023] Step 5: When multiple columnar expansion and contraction blocks move outward, synchronously drive the partition plate and the moving plate to slide outward along the chute plate. When the moving plate moves to the side wall close to the inner wall of the cavity plate, the rotating short rod is pushed by the side wall of the inner wall of the cavity plate and rotates at the hinge joint with the moving plate, thereby causing multiple groups of lifting push plates to move up and down and expand. Through the pulley, the ejector rod slides on the inner wall of the L-shaped ejector rod connecting plate, and the ejector rod slides outward along the inner wall of the L-shaped ejector rod connecting plate to push open and separate the multiple cavity plates.

[0024] The beneficial effects of the present invention are as follows:

[0025] Through the setting of cavity plates, mold opening mechanism and cavity plate ejection and separation mechanism, the present invention realizes the automated production process of injection molds, not only improving production efficiency, but also ensuring the integrity and quality of products. During the injection molding process, the design of multiple groups of arc-shaped plates enables the material to be evenly distributed inside the mold, ensuring uniform molding of products. At the same time, the coordinated action of hydraulic push rods, rotating rods, expansion and contraction blocks and columnar expansion and contraction rods realizes automatic demolding of the mold, greatly reducing the labor intensity of workers and improving demolding efficiency. In addition, through the setting of multiple groups of guiding vertical rods, a stable guiding effect is provided for the sliding of cavity plates, avoiding product damage problems caused by unstable sliding. The combined use of the moving plate, rotating short rod, rotating block and lifting push plates realizes the automatic ejection and separation of multiple cavity plates, further improving the product removal efficiency and avoiding product accumulation problems. In summary, the present invention not only improves the production efficiency of injection molds, but also ensures the quality and integrity of products, having significant technical advantages and application prospects. Description of the Drawings

[0026] Figure 1 are the step schematic diagrams of the present invention;

[0027] Figure 2 is the three-dimensional structure schematic diagram of the main body of the present invention;

[0028] Figure 3 is the three-dimensional separated structure schematic diagram of the main body of the present invention;

[0029] Figure 4 is the three-dimensional structure schematic diagram of the cavity plate of the present invention;

[0030] Figure 5 is the three-dimensional separated structure schematic diagram of the cavity plate of the present invention;

[0031] Figure 6 is the three-dimensional structure schematic diagram of the mold opening mechanism and the cavity plate ejection and separation mechanism of the present invention;

[0032] Figure 7 is the three-dimensional separated structure schematic diagram of the mold opening mechanism and the cavity plate ejection and separation mechanism of the present invention;

[0033] Figure 8 is the three-dimensional structure schematic diagram of the mold opening mechanism of the present invention;

[0034] Figure 9 is the three-dimensional separated structure schematic diagram of the mold opening mechanism of the present invention;

[0035] Figure 10 is the three-dimensional structure schematic diagram of the cavity plate ejection and separation mechanism of the present invention;

[0036] Figure 11 is the three-dimensional separated structure schematic diagram of the cavity plate ejection and separation mechanism of the present invention.

[0037] In the figure: 1. Mold bottom plate; 2. Cavity plate; 21. Cavity plate main body; 22. Cavity plate surface; 23. Guide groove; 24. Injection molding groove; 3. Guide vertical rod; 4. Top cavity plate seat; 5. Mold opening mechanism; 51. Injection molding pipe; 52. Through groove; 53. Sleeve ring; 54. Hydraulic push rod; 55. Lifting ring; 56. Rotating rod; 57. Retracting and expanding block; 58. Columnar retracting and expanding block; 59. Columnar retracting and expanding rod connecting block; 510. Columnar retracting and expanding rod; 511. Arc-shaped plate; 6. Cavity plate ejection and separation mechanism; 61. Slide groove plate; 62. L-shaped ejection rod connecting plate; 63. Ejection rod; 64. Pulley; 65. Spring; 66. Moving plate; 67. Partition plate; 68. Rotating short rod; 69. Rotating block; 610. Lifting push plate. Detailed implementation manners

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] As Figure 2 shown, the present invention provides an injection mold with a hierarchical slider synchronous ejection mechanism, which includes a mold bottom plate 1. Two guiding vertical rods 3 are fixedly connected to the four sides of the top of the mold bottom plate 1. A top cavity plate seat 4 is fixedly connected to the tops of multiple groups of guiding vertical rods 3. The middle of the top cavity plate seat 4 is designed with a hollow. Multiple sides of the outer walls of multiple groups of guiding vertical rods 3 are slidably connected with cavity plates 2. Mold opening mechanisms 5 are fixedly connected to the inner walls of multiple cavity plates 2. Cavity plate ejection and separation mechanisms 6 are fixedly connected in a circular array to the outer walls of multiple mold opening mechanisms 5.

[0040] As Figure 3 - 11As shown, multiple cavity plates 2 each include a cavity plate main body 21. Cavity plate surfaces 22 are fixedly connected to both the top and bottom of the multiple cavity plate main bodies 21. Injection molding grooves 24 are formed in the middle of multiple groups of cavity plate surfaces 22. Two guiding grooves 23 are formed on the four sides of multiple groups of cavity plate surfaces 22. The guiding grooves 23 formed on multiple groups of cavity plate surfaces 22 are all slidably connected to the outer walls of multiple groups of guiding vertical rods 3. Multiple mold opening mechanisms 5 each include an injection molding pipe 51. The top and bottom of the outer wall of multiple injection molding pipes 51 are fixedly connected to the inner walls of the injection molding grooves 24 formed on multiple groups of cavity plate surfaces 22. A collar 53 is fixedly connected to the outer wall of the injection molding pipe 51. Hydraulic push rods 54 are fixedly connected to the bottom of the collar 53 in a circular array. Through grooves 52 are formed in a circular array on one side of the outer wall of the injection molding pipe 51 at the bottom of the collar 53. The bottom ends of multiple hydraulic push rods 54 are fixedly connected to a lifting ring 55. The inner wall of the lifting ring 55 is slidably connected to the outer wall of the injection molding pipe 51. Rotating rods 56 are rotatably connected to the top of the lifting ring 55 in a circular array. On the side of multiple rotating rods 56 away from the lifting ring 55, expansion and contraction blocks 57 are rotatably connected. Columnar expansion and contraction blocks 58 are fixedly connected to the outer sides of multiple expansion and contraction blocks 57. Columnar expansion and contraction rod connection blocks 59 are fixedly connected to the outer walls of multiple columnar expansion and contraction blocks 58. Columnar expansion and contraction rods 510 are fixedly connected to the inner sides of multiple columnar expansion and contraction rod connection blocks 59. The inner ends of multiple columnar expansion and contraction rods 510 extend into the inner wall of the injection molding pipe 51 through multiple through grooves 52 formed on the outer wall of the injection molding pipe 51 and are all fixedly connected to arc-shaped plates 511. The outer walls of multiple arc-shaped plates 511 are in contact. The cavity plate ejection and separation mechanism 6 each include multiple chute plates 61. The inner sides of multiple chute plates 61 are fixedly connected to the middle of the outer wall of the injection molding pipe 51 in a circular array. L-shaped ejection rod connection plates 62 are fixedly connected to the top and bottom of multiple chute plates 61 on the side away from the injection molding pipe 51. Ejection rods 63 are slidably connected to the inner walls of multiple groups of L-shaped ejection rod connection plates 62 on the side away from the chute plates 61. Pulleys 64 are rotatably connected to the inner ends of multiple groups of ejection rods 63. Springs 65 are sleeved on the outer walls of multiple groups of ejection rods 63 on the side inside multiple groups of L-shaped ejection rod connection plates 62. Moving plates 66 are slidably connected to one side of multiple chute plates 61. Partition plates 67 are fixedly connected to the middle of the side of multiple moving plates 66 away from the chute plates 61. Two rotating short rods 68 are rotatably connected to the front and back sides on the side of multiple moving plates 66 close to the partition plates 67. The inclination angles of multiple groups of rotating short rods 68 are opposite. One side of multiple partition plates 67 is fixedly connected to the outer ends of multiple columnar expansion and contraction blocks 58. Rotating blocks 69 are rotatably connected to the side of multiple groups of rotating short rods 68 away from the moving plates 66. Lifting push plates 610 are fixedly connected to the outer sides of multiple groups of rotating blocks 69. The outer sides of multiple groups of lifting push plates 610 are all in contact with the outer walls of multiple groups of pulleys 64;

[0041] When the product needs to be molded, through multiple arc-shaped plates 511 arranged on the inner wall of the injection pipes 51 fixed by multiple cavity plates 2, the material is injected into the inner walls of multiple arc-shaped plates 511. After the product molding is completed, at this time, start multiple hydraulic push rods 54, and through the telescopic movement of the hydraulic push rods 54, push the lifting ring 55 to lift and lower. While the lifting ring 55 rises, through the rotation of the rotating rod 56, it drives the expansion and contraction block 57 and the columnar expansion and contraction rod 510 to move synchronously outward to expand, so that the columnar expansion and contraction rod 510 pulls the arc-shaped plate 511 to move outward until it fits the inner wall of the injection pipe 51. At this time, the inner side of the arc-shaped plate 511 no longer fits the molded product, and the staff can easily take out the completed product through a hook or other tools. Through the outward movement of the arc-shaped plate 511, automatic demolding of the injection mold is realized, eliminating the need for manual demolding, greatly improving the demolding efficiency, and at the same time avoiding product damage caused by incomplete demolding, improving the integrity and quality of the product. In addition, when the lifting ring 55 descends, through the rotation of the rotating rod 56, the expansion and contraction block 57 and the columnar expansion and contraction rod 510 move inward to reset, and then drive the arc-shaped plate 511 to move inward to reset, preparing for the next injection molding;

[0042] In addition, when multiple columnar expansion and contraction blocks 58 move outward, they will synchronously drive the partition plate 67 and the moving plate 66 to slide outward along the chute plate 61. At this time, when the moving plate 66 moves to the side wall close to the inner wall of the cavity plate 2, two rotating short rods 68 connected to the front side of the partition plate 67 on one side of the moving plate 66 are pushed by the side wall of the inner wall of the cavity plate 2 and rotate at the hinge joint with the moving plate 66. Due to the different inclination angles of the moving plate 66, when the moving plate 66 rotates, it drives the connected rotating block 69 to rotate, and then multiple lifting push plates 610 move up and down to expand. While multiple lifting push plates 610 move up and down to expand, through the pulley 64, the ejector rod 63 slides on the inner wall of the L-shaped ejector rod connecting plate 62, and the ejector rod 63 slides outward along the inner wall of the L-shaped ejector rod connecting plate 62 to push open and separate multiple cavity plates 2, thus realizing the automatic ejection and separation of multiple cavity plates 2, eliminating the need for manual separation, greatly improving the taking-out efficiency, and at the same time avoiding product accumulation problems caused by untimely taking-out, further improving the production efficiency of the product. In addition, by arranging multiple guiding vertical rods 3, it provides a guiding function for the sliding of the cavity plate 2, making the cavity plate 2 more stable during the sliding process, avoiding product damage problems caused by unstable sliding, and further improving the integrity and quality of the product.

[0043] In addition, the present invention also relates to an injection mold and method with a hierarchical slider synchronous ejection mechanism, including the following steps:

[0044] Step 1: Fix the mold bottom plate 1 on the working table of the injection molding machine to ensure that the mold bottom plate 1 is stable and immovable;

[0045] Step 2: Inject the molten material into the multiple cavity plates 2 arranged above the mold bottom plate 1 through an injection molding machine. At this time, the material will be injection molded through multiple groups of arc-shaped plates 511 arranged on the inner wall of the injection pipes 51 fixed by the multiple cavity plates 2;

[0046] Step 3: After the product is molded, start multiple hydraulic push rods 54. Push the lifting ring 55 to rise by the telescopic movement of the hydraulic push rods 54. While the lifting ring 55 rises, drive the expansion and contraction block 57 and the columnar expansion and contraction rod 510 to move outward and expand by the rotation of the rotating rod 56. At this time, the inner side of the arc-shaped plate 511 no longer adheres to the molded product, and automatic demolding is completed;

[0047] Step 4: The staff takes out the demolded product through a hook or other tools. At the same time, the lifting ring 55 descends. Through the rotation of the rotating rod 56, the expansion and contraction block 57 and the columnar expansion and contraction rod 510 move inward to reset, and then drive the arc-shaped plate 511 to move inward to reset, preparing for the next injection molding;

[0048] Step 5: When the multiple columnar expansion and contraction blocks 58 move outward, synchronously drive the partition plate 67 and the moving plate 66 to slide outward along the chute plate 61. When the moving plate 66 moves to the side wall close to the inner wall of the cavity plate 2, the rotating short rod 68 is pushed by the side wall of the inner wall of the cavity plate 2 and rotates at the hinge joint with the moving plate 66, so that multiple groups of lifting push plates 610 move up and down to expand. Through the pulley 64, the ejector rod 63 slides on the inner wall of the L-shaped ejector rod connecting plate 62, and the ejector rod 63 slides outward along the inner wall of the L-shaped ejector rod connecting plate 62 to push the multiple cavity plates 2 apart and separate.

[0049] Working principle of the present invention: When it is necessary to mold a product, through multiple arc-shaped plates 511 arranged on the inner wall of the injection pipes 51 fixed by multiple cavity plates 2, the material is injected into the inner walls of multiple arc-shaped plates 511. After the product molding is completed, at this time, start multiple hydraulic push rods 54, and through the telescopic movement of the hydraulic push rods 54, the lifting ring 55 is pushed to lift and lower. While the lifting ring 55 rises, through the rotation of the rotating rod 56, the expansion and contraction block 57 and the columnar expansion and contraction rod 510 are driven to move synchronously and expand outward, so that the columnar expansion and contraction rod 510 pulls the arc-shaped plate 511 to move outward until it fits the inner wall of the injection pipe 51. At this time, the inner side of the arc-shaped plate 511 no longer fits the molded product, and the staff can easily take out the completed product through a hook or other tools. Through the outward movement of the arc-shaped plate 511, automatic demoulding of the injection mold is realized, without manual demoulding, greatly improving the demoulding efficiency, and at the same time avoiding the product damage problem caused by incomplete demoulding, improving the integrity and quality of the product. In addition, when the lifting ring 55 descends, through the rotation of the rotating rod 56, the expansion and contraction block 57 and the columnar expansion and contraction rod 510 move inward and reset, thereby driving the arc-shaped plate 511 to move inward and reset to prepare for the next injection. In addition, when multiple columnar expansion and contraction blocks 58 move outward, they will synchronously drive the partition plate 67 and the moving plate 66 to slide outward along the chute plate 61. At this time, when the moving plate 66 moves to the side wall close to the inner wall of the cavity plate 2, two rotating short rods 68 connected to the front side of the partition plate 67 on one side of the moving plate 66 are pushed by the side wall of the inner wall of the cavity plate 2 and rotate at the hinge joint with the moving plate 66. Due to the different inclination angles of the moving plate 66, when the moving plate 66 rotates, it drives the connected rotating block 69 to rotate, thereby causing multiple lifting push plates 610 to move up and down and expand. While multiple lifting push plates 610 move up and down and expand, through the pulley 64, the ejector rod 63 slides on the inner wall of the L-shaped ejector rod connecting plate 62, and the ejector rod 63 slides outward along the inner wall of the L-shaped ejector rod connecting plate 62 to push the multiple cavity plates 2 to separate.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold with a layered slider synchronous ejection mechanism, characterized in that: The mold base plate (1) comprises two guide vertical rods (3) fixedly connected to the four sides of the top of the mold base plate (1), a plurality of groups of the guide vertical rods (3) are fixedly connected to the top of a cavity plate seat (4), the middle of the cavity plate seat (4) is hollowed out, multiple sides of the outer walls of the plurality of groups of the guide vertical rods (3) are slidably connected to the cavity plates (2), the inner walls of the plurality of cavity plates (2) are fixedly connected to the mold opening mechanisms (5), and the outer walls of the plurality of the mold opening mechanisms (5) are fixedly connected to the cavity plate ejection separation mechanisms (6) in a circular array; The plurality of cavity plates (2) each comprises a cavity plate body (21), the top and bottom of the plurality of cavity plate bodies (21) are fixedly connected to a cavity plate surface (22), the middle of the plurality of groups of cavity plate surfaces (22) are provided with an injection groove (24), the four sides of the plurality of groups of cavity plate surfaces (22) are provided with two guide grooves (23), and the guide grooves (23) provided on the plurality of groups of cavity plate surfaces (22) are slidably connected to the outer wall of the plurality of groups of guide uprights (3); The plurality of mold opening mechanisms (5) all include an injection tube (51), and the tops and bottoms of the outer walls of the plurality of injection tubes (51) are fixedly connected to the inner walls of the injection grooves (24) formed on the plurality of cavity plate surfaces (22).

2. The injection mold with a layered slider synchronous ejection mechanism according to claim 1, characterized in that: The outer wall of the injection molding tube (51) is fixedly connected to a collar (53), and the bottom annular array of the collar (53) is fixedly connected to a hydraulic push rod (54). The outer wall of the injection molding tube (51) is provided with a through groove (52) in an annular array on one side of the bottom of the collar (53), and the bottom ends of the plurality of hydraulic push rods (54) are fixedly connected to a lifting ring (55), and the inner wall of the lifting ring (55) is slidably connected to the outer wall of the injection molding tube (51).

3. The injection mold with a layered slider synchronous ejection mechanism according to claim 2, characterized in that: The top of the lifting ring (55) is rotatably connected to a rotating rod (56) in an annular array, and a plurality of the rotating rods (56) are rotatably connected to a receiving and expanding block (57) on one side away from the lifting ring (55), and a plurality of the receiving and expanding blocks (57) are fixedly connected to the outer sides of the plurality of receiving and expanding blocks (57) with a columnar receiving and expanding block (58).

4. The injection mold with a layered slider synchronous ejection mechanism according to claim 3, characterized in that: The outer walls of the plurality of columnar expansion blocks (58) are all fixedly connected to columnar expansion rod connection blocks (59), and the inner sides of the plurality of columnar expansion rod connection blocks (59) are all fixedly connected to columnar expansion rods (510).

5. The injection mold with a layered slider synchronous ejection mechanism according to claim 4, characterized in that: The inner ends of the plurality of columnar expansion rods (510) extend to the inner wall of the injection molding tube (51) through the plurality of through slots (52) provided on the outer wall of the injection molding tube (51) and are fixedly connected to the arc-shaped plates (511), and the outer walls of the plurality of arc-shaped plates (511) are fitted.

6. The injection mold with a layered slider synchronous ejection mechanism according to claim 1, characterized in that: The cavity plate ejection separation mechanism (6) comprises a plurality of slide plates (61), the inner sides of the plurality of slide plates (61) are fixedly connected to the middle part of the outer wall of the injection tube (51) in a circular array, the top and bottom of the plurality of slide plates (61) are fixedly connected to an L-shaped ejector rod connecting plate (62) on the side away from the injection tube (51), and the inner walls of the plurality of groups of L-shaped ejector rod connecting plates (62) on the side away from the slide plate (61) are slidably connected to ejector rods (63).

7. The injection mold with a layered slider synchronous ejection mechanism according to claim 6, characterized in that: The inner ends of the multiple groups of ejector rods (63) are rotatably connected to pulleys (64), and the outer walls of the multiple groups of ejector rods (63) are sleeved with springs (65) on one side inside the multiple groups of L-shaped ejector rod connecting plates (62).

8. The injection mold with a layered slider synchronous ejection mechanism according to claim 7, characterized in that: One side of the plurality of slide plates (61) is slidably connected to a movable plate (66), the middle part of the side of the plurality of movable plates (66) away from the slide plate (61) is fixedly connected to a partition plate (67), the front and rear sides of the side of the plurality of movable plates (66) close to the partition plate (67) are rotatably connected to two rotating short rods (68), the inclination angles of the plurality of groups of rotating short rods (68) are opposite, and one side of the plurality of partition plates (67) is fixedly connected to the outer ends of the plurality of columnar expansion blocks (58).

9. The injection mold with a layered slider synchronous ejection mechanism according to claim 8, characterized in that: The multiple groups of rotating short rods (68) are rotatably connected to a rotating block (69) on one side away from the movable plate (66), and the outer sides of the multiple groups of rotating blocks (69) are fixedly connected to a lifting push plate (610), and the outer sides of the multiple groups of lifting push plates (610) are in contact with the outer walls of the multiple groups of pulleys (64).

10. A method for an injection mold with a layered slider synchronous ejection mechanism according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Fix the mold base plate (1) on the workbench of the injection molding machine to ensure that the mold base plate (1) is stable and motionless; Step 2: Injecting the molten material into the multiple cavity plates (2) arranged above the mold bottom plate (1) through an injection molding machine. At this time, the material will be injection molded through the multiple sets of arc plates (511) arranged on the inner wall of the injection tube (51) fixed by the multiple cavity plates (2); Step 3: After the product is formed, a plurality of hydraulic push rods (54) are started, and the lifting ring (55) is pushed upward by the extension and retraction of the hydraulic push rods (54). When the lifting ring (55) is lifted, the rotation of the rotating rod (56) drives the expansion block (57) and the columnar expansion rod (510) to move outward and expand. At this time, the inner side of the arc plate (511) is no longer attached to the formed product, and automatic demoulding is completed; Step 4: The staff takes out the demoulding product by means of a hook or other tools. At the same time, the lifting ring (55) descends, and the rotating rod (56) rotates, so that the expansion block (57) and the columnar expansion rod (510) move inwards and reset, thereby driving the arc plate (511) to move inwards and reset, in preparation for the next injection molding. Step 5: When the multiple columnar expansion blocks (58) move outward, they simultaneously drive the partition plate (67) and the movable plate (66) to slide outward along the slide plate (61). When the movable plate (66) moves to the side wall close to the inner wall of the cavity plate (2), the rotating short rod (68) is pushed by the side wall of the inner wall of the cavity plate (2) and then rotates at the hinge with the movable plate (66), thereby causing the multiple sets of lifting and pushing plates (610) to move up and down to expand. The ejector rod (63) slides on the inner wall of the L-shaped ejector rod connecting plate (62) through the pulley (64). The ejector rod (63) slides outward along the inner wall of the L-shaped ejector rod connecting plate (62), and the multiple cavity plates (2) are pushed open and separated.

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