Die ejection mechanism with ejector pin abrasion-proof function

Abstract

The utility model discloses a mould ejection mechanism with an ejector pin anti-abrasion function, which comprises a lower mould, a material inlet and a material outlet are arranged on the front surface and the rear surface of the lower mould, an upper mould is arranged above the lower mould, an opening is arranged on the lower surface of the upper mould, and two positioning clamping blocks are connected with the inner wall of the opening of the upper mould in a sliding mode. According to the mold ejection mechanism with the ejector pin anti-abrasion function, an auxiliary push plate and a transmission block are arranged, when the mold ejection mechanism works, an upper mold is driven by a hydraulic device to ascend and descend for machining, and after machining is completed, the upper mold is integrally lifted firstly, so that a positioning clamping block slides downwards, and the transmission block is loosened; and then a transmission block slides under the pulling of a spring and drives a third magnet to be away from a fourth magnet, after the fourth magnet is not attracted, a supporting block is pulled by the spring to descend, the supporting block drives an auxiliary push plate to abut against the upper surface of the product, along with rising of the upper mold, the product and the upper mold are conveniently separated, and product adhesion during discharging is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and particularly relates to a mold ejection mechanism with a thimble anti-wear function. Background Technique

[0002] A mold is various molds and tools used in industrial production for injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, etc. to obtain the required products. In short, a mold is a tool for making shaped articles. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the article shape through the change of the physical state of the molded material. The main task of the hot runner plate is to constantly keep the melt at a constant temperature and send it from the main runner to each individual nozzle. The hot runner plate should adopt the overall processing method of thick plates. For the runner surface in contact with the melt, after drilling, it needs to be reamed with a reamer and then polished. There shall be no blind holes at the end points of the runner, and the shape of the corner shall be smoothly transitioned with the runner.

[0003] The existing mold ejection mechanism is generally arranged on the surface of the lower mold. After the product is shaped, the top plate is driven by a hydraulic mechanism to eject the mold. However, some products are prone to sticking to the surface of the upper mold during mold separation, making it difficult to separate, resulting in additional cleaning and blanking by personnel and reducing work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a mold ejection mechanism with a thimble anti-wear function to solve the problem that some products are prone to sticking to the surface of the upper mold during mold separation, making it difficult to separate, resulting in additional cleaning and blanking by personnel and reducing work efficiency as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A mold ejection mechanism with a thimble anti-wear function, including a lower mold, with feeding and discharging ports arranged on its front and back surfaces. An upper mold is arranged above the lower mold. An opening is arranged on the lower surface of the upper mold, and two positioning blocks are slidably connected to the inner wall of the opening of the upper mold. Two connecting side plates are arranged on the side of the lower mold, and two limiting sliders are slidably connected to the upper side surface of the lower mold. Two linkage slides are slidably connected to the lower side surface of the lower mold. On the upper surfaces of the opposite ends of the two linkage slides, first magnets are fixed respectively. An installation disc is slidably connected inside the lower mold, and two second magnets are installed at the lower end of the installation disc. An auxiliary blanking mechanism is arranged inside the upper mold, which drives an auxiliary push plate to slide down through a support block to discharge the product.

[0006] Preferably, a positioning groove is arranged on the upper surface of the lower mold, and the lower end of the positioning block penetrates through the positioning groove of the lower mold. The upper end of the positioning block is arc-shaped, and a spring is connected between the positioning block and the upper mold.

[0007] With the above technical solution, the positioning groove of the lower mold facilitates the rapid positioning of the upper mold through the positioning block.

[0008] Preferably, the positioning block is of an L-shaped design. The connecting side plates are respectively fixedly connected to one ends of the limiting slider and the linkage slide plate. The limiting slider and the positioning block form a snap connection, and a spring is connected between the linkage slide plate and the lower mold.

[0009] With the above technical solution, the L-shaped design of the positioning block facilitates the snap fixation of the limiting slider to it.

[0010] Preferably, a column is provided at the lower end of the mounting disc. The second magnet is fixed to the lower surface of the column of the mounting disc. The surfaces of the first magnet and the second magnet facing each other have the same magnetic poles. A spring is connected between the mounting disc and the lower mold.

[0011] With the above technical solution, the column of the mounting disc facilitates the fixation of the second magnet, and the first magnet repels the second magnet to move.

[0012] Preferably, the auxiliary blanking mechanism includes a transmission block which is slidably connected inside the upper mold. A third magnet is fixedly connected to the lower surface of one end of the transmission block. A support block is slidably connected inside the upper mold, and a fourth magnet is fixedly connected to the side surface of the support block. An auxiliary push plate is slidably connected to the lower surface of the upper mold.

[0013] With the above technical solution, through the auxiliary blanking mechanism, the transmission block drives the third magnet, and the third magnet attracts the fourth magnet.

[0014] Preferably, a spring is connected between the transmission block and the upper mold, and one end of the lower surface of the transmission block is of an inclined design. The opposite ends of the third magnet and the fourth magnet have opposite magnetic poles. A spring is connected between the support block and the upper mold, and the lower end of the support block penetrates the inner wall of the upper mold and is fixedly connected to the upper end of the auxiliary push plate.

[0015] With the above technical solution, the third magnet attracts the fourth magnet, so that the fourth magnet drives the support block to move.

[0016] Preferably, a thimble is fixed to the upper end of the mounting disc, and a buffer end is provided on the outer surface of the thimble of the mounting disc. The thimble of the mounting disc and the buffer end form a sliding connection, and a spring is connected between the thimble of the mounting disc and the buffer end.

[0017] With the above technical solution, the support block drives the auxiliary push plate to descend, so that the auxiliary push plate pushes the product for blanking.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the mold ejection mechanism with ejector pin anti-wear function:

[0019] 1. An auxiliary push plate and a transmission block are provided. When the device is working, the upper mold is driven to rise and fall by the hydraulic device to perform processing. After the processing is completed, the upper mold is first raised as a whole, so that the positioning block slides down and releases the transmission block. Then the transmission block slides under the pull of the spring and drives the third magnet away from the fourth magnet. After the fourth magnet is not attracted, the support block is pulled down by the spring, so that the support block drives the auxiliary push plate to press against the upper surface of the product. With the rise of the upper mold, it is convenient to separate the product from the upper mold to prevent the product from sticking when unloading;

[0020] 2. A linkage slide plate and a first magnet are provided, so that when the device is working, the limit slide block and the linkage slide plate are driven to slide by slidingly connecting the side plate, so that the linkage slide plate drives the first magnet to approach and repel the second magnet, so that the second magnet drives the mounting disc to slide upward, so that the mounting disc pushes the product out through the ejection pin on the surface, thereby improving the efficiency of discharging and increasing the uniformity of ejection;

[0021] 3. A buffer end and a mounting disc are provided so that when the device is working, the product is pressed by the auxiliary push plate, and the product will not be offset when the lower mold is separated from the upper mold, thereby improving the stability during material discharge. When ejecting the product, the spring between the buffer end and the ejector pin of the mounting disc can buffer the impact force on the ejector pin, thereby reducing the wear of the ejector pin of the mounting disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the connection between the lower mold and the upper mold of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the lower mold and the limit slider of the utility model;

[0024] Figure 3 This is a schematic diagram of a three-dimensional structure of the utility model connecting the side plate and the linkage slide plate;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the support block and the fourth magnet connected to the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the installation disc and the buffer end connection of the utility model;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the installation disk and the second magnet connected to the utility model.

[0028] In the figure: 1. Lower die; 2. Upper die; 3. Positioning block; 4. Connecting side plate; 5. Limiting slider; 6. Linkage slide plate; 7. First magnet; 8. Mounting disc; 9. Second magnet; 10. Buffer end; 11. Driving block; 12. Third magnet; 13. Support block; 14. Fourth magnet; 15. Auxiliary push plate. Specific implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-6 , the present invention provides a technical solution: a mold ejection mechanism with a thimble anti-wear function, including a lower die 1, an upper die 2, a positioning block 3, a connecting side plate 4, a limiting slider 5, a linkage slide plate 6, a first magnet 7, a mounting disc 8, a second magnet 9, a buffer end 10, a driving block 11, a third magnet 12, a support block 13, a fourth magnet 14 and an auxiliary push plate 15. The lower die 1 has feeding and discharging ports on its front and rear surfaces, and a positioning groove is provided on the upper surface of the lower die 1, and the positioning groove of the lower die 1 is penetrated by the lower end of the positioning block 3. The upper end of the positioning block 3 is arc-shaped, and a spring is connected between the positioning block 3 and the upper die 2. When using this device, first, the hydraulic device drives the upper die 2 to descend and close with the lower die 1, so that the two positioning blocks 3 extend into the positioning of the lower die 1, improving the positioning efficiency, and enabling the two limiting sliders 5 to slide through the spring and latch and fix the positioning block 3.

[0031] An upper die 2 is arranged above the lower die 1. The positioning block 3 is L-shaped. The connecting side plates 4 are respectively fixedly connected to one ends of the limiting slider 5 and the linkage slide plate 6. The limiting slider 5 and the positioning block 3 form a latching connection. A spring is connected between the linkage slide plate 6 and the lower die 1. As the upper die 2 descends, the positioning block 3 rises and pushes the driving block 11 to slide, so that the driving block 11 drives the third magnet 12 at one end to move closer to the fourth magnet 14.

[0032] The lower surface of the upper die 2 is provided with an opening, and two positioning blocks 3 are slidably connected to the inner wall of the opening of the upper die 2. A column is provided at the lower end of the mounting disc 8, and the second magnet 9 is fixed to the lower surface of the column of the mounting disc 8. The surfaces of the first magnet 7 and the second magnet 9 facing each other have the same magnetic poles. A spring is connected between the mounting disc 8 and the lower die 1. The third magnet 12 attracts the fourth magnet 14, causing the fourth magnet 14 to drive the support block 13 to slide upward. At the same time, the support block 13 drives the auxiliary push plate 15 to slide upward. Subsequently, the liquid material is introduced from the feed port of the lower die 1 for processing.

[0033] Two connecting side plates 4 are provided on the side surface of the lower die 1, and two limit sliders 5 are slidably connected to the upper side surface of the lower die 1. The auxiliary blanking mechanism includes a transmission block 11, which is slidably connected inside the upper die 2. A third magnet 12 is fixedly connected to the lower surface of one end of the transmission block 11. A support block 13 is slidably connected inside the upper die 2, and a fourth magnet 14 is fixedly connected to the side surface of the support block 13. An auxiliary push plate 15 is slidably connected to the lower surface of the upper die 2. After the processing is completed, the upper die 2 is driven to rise by a hydraulic device, so that the positioning block 3 is engaged and slides down by the limit slider 5. Since the positioning block 3 no longer restricts the transmission block 11, the spring pulls the transmission block 11 to drive the third magnet 12 away from the fourth magnet 14. Subsequently, the spring on the inner wall of the upper die 2 pushes the support block 13 and the auxiliary push plate 15 to slide down to abut against the upper surface of the product, facilitating the separation of the upper die 2 from the product to prevent adhesion.

[0034] Two linkage slides 6 are slidably connected to the lower side surface of the lower die 1. First magnets 7 are fixed to the upper surfaces of the opposite ends of the two linkage slides 6. A spring is connected between the transmission block 11 and the upper die 2, and one end of the lower surface of the transmission block 11 is designed to be inclined. The opposite ends of the third magnet 12 and the fourth magnet 14 have opposite magnetic poles. A spring is connected between the support block 13 and the upper die 2, and the lower end of the support block 13 penetrates the inner wall of the upper die 2 and is fixedly connected to the upper end of the auxiliary push plate 15. After the upper die 2 is separated from the product, by pulling the connecting side plate 4 to drive the limit slider 5 and the linkage slide 6 to slide, it is convenient to unlock the positioning block 3. At the same time, the linkage slide 6 drives the first magnet 7 to approach the second magnet 9, causing the second magnet 9 to be repelled and drive the mounting disc 8 to slide upward, so that the mounting disc 8 pushes the product through the upper end of the ejector pin, facilitating the demoulding of the product and improving the blanking efficiency.

[0035] The lower mold 1 is internally slidably connected with a mounting disc 8, and two second magnets 9 are installed at the lower end of the mounting disc 8. An auxiliary unloading mechanism is arranged inside the upper mold 2, which drives an auxiliary push plate 15 to slide down through a support block 13 to discharge the product. An ejector pin is fixed to the upper end of the mounting disc 8, and a buffer end 10 is arranged on the outer surface of the ejector pin of the mounting disc 8. The ejector pin of the mounting disc 8 is slidably connected with the buffer end 10, and a spring is connected between the ejector pin of the mounting disc 8 and the buffer end 10. The buffer end 10 slides relative to the ejector pin of the mounting disc 8 and compresses the spring, so that the impact force on the ejector pin of the mounting disc 8 is reduced, thereby improving the wear resistance of the ejector pin of the mounting disc 8, extending the service life, and improving the practicability of the device.

[0036] Working principle: When using the mold ejection mechanism with ejector anti-wear function, firstly, the upper mold 2 is driven to descend and close with the lower mold 1 through the hydraulic device, so that the positioning block 3 is extended into the positioning groove of the lower mold 1 for positioning, and the positioning block 3 is clamped and fixed by the limit slider 5. At the same time, the upper mold 2 descends relative to the positioning block 3, and the raw materials are conveniently introduced through the inlet and outlet of the lower mold 1 for processing. After the end, the upper mold 2 rises, so that the positioning block 3 descends relatively and releases the transmission block 11, so that the spring pulls the transmission block 11 to drive the third magnet 12 away from the fourth magnet 14, and then the fourth magnet 14 drives the support block 13 and the auxiliary push plate 15 to descend so as to resist the upper surface of the product to prevent it from sticking to the surface of the upper mold 2, and the sliding connection side plate 4 drives the limit slider 5 and the linkage slide plate 6. When the limit slider 5 unlocks the positioning block 3, the linkage slide plate 6 drives the first magnet 7 to approach and repel the second magnet 9, so that the second magnet 9 drives the mounting disc 8 to slide up, and the mounting disc 8 ejects the product through the buffer end 10 and reduces wear, thereby increasing the overall practicality.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold ejection mechanism with an ejector pin anti-wear function, comprising a lower mold (1), the front and rear surfaces of which are provided with inlet and outlet ports, and an upper mold (2) is provided above the lower mold (1), characterized in that: The lower surface of the upper mold (2) is provided with an opening, and the inner wall of the opening of the upper mold (2) is slidably connected to two positioning blocks (3), the side of the lower mold (1) is provided with two connecting side plates (4), and the upper end side surface of the lower mold (1) is slidably connected to two limit sliders (5), the lower end side surface of the lower mold (1) is slidably connected to two linkage slides (6), and the upper surfaces of the two linkage slides (6) facing each other are fixed with first magnets (7), the interior of the lower mold (1) is slidably connected to a mounting disc (8), and the lower end of the mounting disc (8) is installed with two second magnets (9), and the interior of the upper mold (2) is provided with an auxiliary unloading mechanism, which drives the auxiliary push plate (15) to slide down through the support block (13) to discharge the product.

2. A mold ejection mechanism with ejector pin anti-wear function according to claim 1, characterized in that: The upper surface of the lower mold (1) is provided with a positioning groove, and the positioning groove of the lower mold (1) is penetrated by the lower end of the positioning block (3), the upper end of the positioning block (3) is designed to be arc-shaped, and a spring is connected between the positioning block (3) and the upper mold (2).

3. The mold ejection mechanism with ejector pin anti-wear function according to claim 1, characterized in that: The positioning block (3) is of L-shaped design, the connecting side plate (4) is fixedly connected to one end of the limiting slider (5) and the linkage slider (6) respectively, the limiting slider (5) and the positioning block (3) form a snap connection, and a spring is connected between the linkage slider (6) and the lower mold (1).

4. The mold ejection mechanism with ejector pin anti-wear function according to claim 1, characterized in that: A column is provided at the lower end of the mounting disc (8); the second magnet (9) is fixed to the lower surface of the column of the mounting disc (8); the magnetic poles of the surfaces of the first magnet (7) and the second magnet (9) facing each other are the same; and a spring is connected between the mounting disc (8) and the lower mold (1).

5. The mold ejection mechanism with ejector pin anti-wear function according to claim 1, characterized in that: The auxiliary unloading mechanism comprises a transmission block (11), the transmission block (11) is slidably connected to the interior of the upper mold (2), a third magnet (12) is fixedly connected to the lower surface of one end of the transmission block (11), a support block (13) is slidably connected to the interior of the upper mold (2), and a fourth magnet (14) is fixedly connected to the side surface of the support block (13), and an auxiliary push plate (15) is slidably connected to the lower surface of the upper mold (2).

6. The mold ejection mechanism with ejector pin anti-wear function according to claim 5, characterized in that: A spring is connected between the transmission block (11) and the upper mold (2), and the lower surface of one end of the transmission block (11) is designed to be inclined. The magnetic poles of the third magnet (12) and the fourth magnet (14) facing each other are opposite. A spring is connected between the support block (13) and the upper mold (2), and the lower end of the support block (13) passes through the inner wall of the upper mold (2) and is fixedly connected to the upper end of the auxiliary push plate (15).

7. The mold ejection mechanism with ejector pin anti-wear function according to claim 1, characterized in that: A pin is fixed to the upper end of the mounting disc (8), and a buffer end (10) is provided on the outer surface of the pin of the mounting disc (8). The pin of the mounting disc (8) and the buffer end (10) are slidably connected, and a spring is connected between the pin of the mounting disc (8) and the buffer end (10).

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