Mold stripping ejection structure for plastic forming mold

Abstract

The utility model discloses a mold stripping ejection structure for a plastic forming mold, which relates to the technical field of mold stripping structures and comprises a support frame, a bearing plate, a driving block, a connecting rod and a lifting interface, the bearing plate, the driving block, the connecting rod and a lifting plate are arranged on the right side of the support frame, and the connecting rod is mounted on the side surface above the lifting plate. A bearing plate, a guide groove, a first upper mold plate, a second upper mold plate and an injection molding hole are arranged above the connecting rod, a cooling opening is formed in the side face of the second upper mold plate, a first spring and a guide rod are arranged on the inner side of the second upper mold plate, and a guide block is installed below the first upper mold plate. The second upper die plate and the first upper die plate can be synchronously opened towards the two sides under pushing of the connecting rod, rapid and automatic separation is achieved, and the completeness of a workpiece is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mold ejection structure technology, specifically to an ejection structure for plastic molding molds. Background Technology

[0002] Plastic molds are tools used in the plastics processing industry, working in conjunction with plastic molding machines to give plastic products a complete shape and precise dimensions. Due to the wide variety of plastic types and processing methods, and the varying complexity of plastic molding machines and products, plastic molds also come in many types and structures. However, existing plastic molding molds still have some shortcomings, such as:

[0003] The precision mold with a pre-extraction protection mechanism described in application number CN202111657438.3 requires the workpiece to be separated from the mold by an external part removal device or manually during actual use, since the device does not have an ejection structure. Because the newly formed plastic workpiece is relatively soft and has low hardness, it is extremely easy to damage the surface of the workpiece during the part removal process, resulting in scrap. Summary of the Invention

[0004] The purpose of this utility model is to provide a mold ejection structure for plastic molding dies, in order to solve the problem mentioned in the background art that existing equipment on the market with mold ejection structures requires, in actual use, the workpiece to be separated from the mold by external part removal equipment or manually. Since the newly formed plastic workpiece is relatively soft and has low hardness, it is extremely easy to cause damage to the surface of the workpiece during the part removal process, resulting in scrap.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold ejection structure for a plastic molding die, comprising a support frame, a bearing plate, a drive block, a connecting rod, and a lifting interface;

[0006] The support frame has a bearing plate, a drive block, a connecting rod, and a lifting plate on its right side. A connecting rod is installed on the upper side of the lifting plate. Above the connecting rod are the bearing plate, a guide groove, a first upper mold plate, a second upper mold plate, and an injection hole. A cooling port is provided on the side of the second upper mold plate, and a first spring and a guide rod are provided on the inner side of the second upper mold plate. A guide block is installed below the first upper mold plate. A mold sleeve, a second spring, and an ejector pin are provided below the first upper mold plate. A lifting clamping plate is provided below the bearing plate. A support rod is installed on the right side of the lifting clamping plate. A lifting interface is provided below the lifting plate.

[0007] As a preferred technical solution of this utility model, the support frame is slidably connected to the lifting plate, the lifting interface is fixedly connected to the intersection of the diagonals below the lifting plate, the lifting plate has a groove structure at the center of the left side, and a square groove structure is formed at the center of the lifting plate.

[0008] By adopting the above technical solution, the equipment sets the lifting plate at the bottom of the support frame and fixes the lifting interface at the diagonal intersection of the lifting plate. This allows hydraulic or other power components to be quickly connected to the lifting interface to provide thrust and directly drive the lifting plate, ensuring sufficient thrust.

[0009] As a preferred technical solution of this utility model, the lifting plate is rotatably connected to the connecting rod on its side, the connecting rod adopts a double rod structure, the lifting plate is slidably connected to the driving block on its left side, a square groove is opened between the driving blocks, an inclined opening is provided at the center line position of the driving block, and the driving block as a whole has a U-shaped structure.

[0010] By adopting the above technical solution, the device can maximize the structural strength of the device and ensure the stability of the adjustment by setting the connecting rod as a double rod structure. The inclined opening at the center of the drive block can provide guidance for lifting the clamping plate. The drive block as a whole has a U-shaped structure, which ensures the movement space of the lifting clamping plate.

[0011] As a preferred technical solution of this utility model, the lifting clamp is slidably connected to the center line of the driving block, the bearing plate is fixedly connected to the right side of the lifting clamp, and the bearing plate and the lifting clamp are provided with a distance of the lifting clamp thickness. A circular groove structure is opened at the intersection of the diagonals of the bearing plate, and a through hole structure is opened below the groove of the bearing plate.

[0012] By adopting the above technical solution, the device slides and connects the lifting clamping plate at the center line of the drive block, and can quickly push the lifting clamping plate to move after being buffered by the drive block during the movement of the lifting plate, so as to lift the bearing plate upward.

[0013] As a preferred technical solution of this utility model, a support rod is embedded on the right side of the drive block. The support rod has a nail-shaped structure and penetrates two layers of structure. A bearing plate is fitted on top of the support rod, and the support rod penetrates the bearing plate.

[0014] By adopting the above technical solution, the device can ensure the ease of installation of the support rod by embedding the support rod into the drive block. The support rod runs through two layers of structure and can play a guiding role to ensure the accuracy of docking.

[0015] As a preferred technical solution of this utility model, a lower template is stacked on top of the bearing plate, and a support rod is slidably connected inside the lower template, with the support rod submerged in half the thickness of the lower template;

[0016] By adopting the above technical solution, the equipment can ensure the layering and structural strength of the equipment by stacking the support plate and the lower template in sequence.

[0017] As a preferred technical solution of this utility model, a guide block is fixedly connected above the lower template, and two guide blocks are distributed in parallel. A mold sleeve is sandwiched between the lower template and the bearing plate.

[0018] By adopting the above technical solution, the equipment can provide support as a crossbeam by distributing two guide blocks in parallel, while ensuring the adjustment accuracy of the equipment. The mold sleeve is clamped between the lower template and the bearing plate, which can be used to replace different molds by clamping and installing, thus ensuring the compatibility of the equipment.

[0019] As a preferred technical solution of this utility model, the ejector pin is slidably connected inside the mold sleeve. The upper part of the ejector pin has a conical structure, and the top of the ejector pin matches the mold sleeve. The lower part of the ejector pin is fixedly connected to a second spring, and the bottom of the second spring has a spherical structure.

[0020] By adopting the above technical solution, the equipment has a conical structure above the ejector pin, and the top of the ejector pin matches the mold sleeve. This allows the mold to be ejected after molding at the same time as it performs the molding function.

[0021] As a preferred technical solution of this utility model, the first upper template is rotatably connected above the connecting rod, the second upper template is slidably connected to the first upper template at a symmetrical position, and the second upper template and the first upper template are provided with injection holes;

[0022] By adopting the above technical solution, the equipment can rotate and connect the first upper template above the connecting rod, and under the push of the connecting rod, the second upper template and the first upper template can be opened to both sides simultaneously, achieving rapid and automatic separation and ensuring the integrity of the workpiece.

[0023] As a preferred technical solution of this utility model, cooling ports are opened on the sides of the second upper template and the first upper template. The cooling ports are a through structure. A forming cavity is opened between the second upper template and the mold sleeve. Guide grooves are opened at the bottom of the second upper template and the first upper template. The mold sleeve is slidably connected between the second upper template and the first upper template. First springs are fitted on both sides of the mold sleeve.

[0024] By adopting the above technical solution, the equipment can accelerate the molding efficiency by making the cooling port an integral through structure and utilizing the air circulation. The first springs installed on both sides of the mold sleeve can use the symmetrical first springs to cancel out the mutual forces and automatically retract.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This device sets the lifting plate at the bottom of the support frame and fixes the lifting interface at the diagonal intersection of the lifting plate. This allows hydraulic or other power components to be quickly connected to the lifting interface to provide thrust and directly drive the lifting plate, ensuring sufficient thrust.

[0027] By setting the connecting rod as a double-rod structure, the device can maximize the structural strength of the device and ensure the stability of the adjustment. The inclined opening at the center of the drive block can provide guidance for lifting the clamping plate. The drive block as a whole has a U-shaped structure, which ensures the movement space of the lifting clamping plate.

[0028] This device slides a lifting clamping plate at the center line of the drive block, which can quickly push the lifting clamping plate to move after being buffered by the drive block during the movement of the lifting plate, thereby lifting the bearing plate upward.

[0029] This device ensures convenient installation of the support rod by embedding it into the drive block. The support rod runs through two layers of structure and acts as a guide to ensure accurate docking.

[0030] The equipment uses a stacking method to place the support plate and lower template sequentially, which can ensure the layering and structural strength of the equipment;

[0031] The device uses two parallel guide blocks to provide support as crossbeams while ensuring the adjustment accuracy of the device. The mold sleeve is clamped between the lower template and the bearing plate, which allows for the replacement of different molds through clamping installation, ensuring the compatibility of the device.

[0032] This device, by having a conical structure above the ejector pin and having the top of the ejector pin fit into the mold sleeve, can eject the molded mold through the ejector pin while performing the forming function.

[0033] The device connects the first upper template by rotating it above the connecting rod. Under the push of the connecting rod, the second upper template can be opened to both sides simultaneously with the first upper template, achieving rapid and automatic separation and ensuring the integrity of the workpiece.

[0034] The device features a through-type cooling vent, which allows for airflow and accelerates mold forming efficiency. The mold sleeve is fitted with first springs on both sides, which, through their symmetrical arrangement, cancel out the opposing forces and enable automatic retraction. Attached Figure Description

[0035] Figure 1 This is a side view of the structure of this utility model;

[0036] Figure 2 This is a schematic diagram of the connecting rod and lifting plate structure of this utility model;

[0037] Figure 3 This is a schematic diagram of the mold sleeve and forming cavity structure of this utility model;

[0038] Figure 4 This is a schematic diagram of the guide groove and the first upper template structure of this utility model;

[0039] Figure 5 This is a schematic diagram of the mold sleeve and ejector pin structure of this utility model;

[0040] Figure 6 This is a schematic diagram of the second spring and ejector bolt structure of this utility model.

[0041] In the diagram: 1. Support frame; 2. Bearing plate; 3. Drive block; 4. Connecting rod; 5. Lifting plate; 6. Lower mold plate; 7. Guide groove; 8. First upper mold plate; 9. Second upper mold plate; 10. Injection hole; 11. Cooling port; 12. First spring; 13. Guide rod; 14. Lifting clamp; 15. Mold sleeve; 16. Molding cavity; 17. Second spring; 18. Ejector bolt; 19. Support rod; 20. Guide block; 21. Lifting interface. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0043] Please see Figure 1 - Figure 6 The present invention provides a mold ejection structure for a plastic molding die, comprising a support frame 1, a bearing plate 2, a drive block 3, a connecting rod 4, a lifting plate 5, a lower mold plate 6, a guide groove 7, a first upper mold plate 8, a second upper mold plate 9, an injection hole 10, a cooling port 11, a first spring 12, a guide rod 13, a lifting clamping plate 14, a mold sleeve 15, a molding cavity 16, a second spring 17, an ejector pin 18, a support rod 19, a guide block 20, and a lifting interface 21.

[0044] The support frame 1 has a bearing plate 2, a drive block 3, a connecting rod 4, and a lifting plate 5 on its right side. The lifting plate 5 is slidably connected to the inner side of the support frame 1. A lifting interface 21 is fixedly connected to the diagonal intersection of the lower part of the lifting plate 5. A groove structure is formed at the center of the left side of the lifting plate 5, and a square groove structure is formed at the center of the lifting plate 5. This device, by placing the lifting plate 5 at the bottom of the support frame 1 and fixing the lifting interface 21 at the diagonal intersection of the lower part of the lifting plate 5, allows hydraulic or other power components to be quickly connected to the lifting interface 21 to provide thrust and directly drive the lifting plate 5, ensuring sufficient thrust. A connecting rod 4 is installed on the upper side of the lifting plate 5, and the side of the lifting plate 5 is rotatably connected to the connecting rod 4. The connecting rod 4 adopts a double rod structure, and the left side of the lifting plate 5 slides. The drive block 3 is connected, with a square groove between the drive blocks 3. A sloping opening is located at the center of the drive block 3, and the drive block 3 has an overall U-shaped structure. By setting the connecting rod 4 as a double-rod structure, the device can maximize its structural strength and ensure adjustment stability. The sloping opening at the center of the drive block 3 provides guidance for the lifting clamp 14. The overall U-shaped structure of the drive block 3 ensures sufficient space for the lifting clamp 14 to move. Above the connecting rod 4 are a bearing plate 2, a guide groove 7, a first upper template 8, a second upper template 9, and an injection hole 10. The lifting clamp 14 is slidably connected to the center of the drive block 3. The bearing plate 2 is fixedly connected to the right side of the lifting clamp 14, and a lifting clamp is provided between the bearing plate 2 and the lifting clamp 14. The bearing plate 2 has a thickness of 14mm. A circular groove is formed at the diagonal intersection of the bearing plate 2, and a through hole is formed below the groove. This device slides the lifting clamp 14 at the center of the drive block 3, allowing the lifting plate 5 to move quickly after being buffered by the drive block 3, thus lifting the bearing plate 2 upwards. A cooling port 11 is provided on the side of the second upper template 9. A support rod 19 is embedded on the right side of the drive block 3. The support rod 19 has a nail-shaped structure and penetrates two layers of structure. The bearing plate 2 is fitted on top of the support rod 19, and the support rod 19 penetrates the bearing plate 2. This device ensures convenient installation of the support rod 19 by embedding it into the drive block 3. The double-layer structure serves as a guide, ensuring accurate docking. A first spring 12 and a guide rod 13 are installed inside the second upper template 9. A lower template 6 is stacked on top of the support plate 2, with a support rod 19 slidably connected inside the lower template 6, the support rod 19 being submerged to half the thickness of the lower template 6. This equipment, by stacking the support plate 2 and lower template 6 sequentially, ensures the equipment's layering and structural strength. Guide blocks 20 are installed below the first upper template 8 and fixedly connected above the lower template 6. Two guide blocks 20 are distributed in parallel. A mold sleeve 15 is clamped between the lower template 6 and the support plate 2. By using two parallel guide blocks 20, this equipment can provide support as crossbeams while ensuring the equipment's adjustment accuracy.A mold sleeve 15 is clamped between the lower template 6 and the support plate 2. This clamping installation allows for the replacement of different molds, ensuring equipment compatibility. Below the first upper template 8, there is a mold sleeve 15, a second spring 17, and an ejector pin 18. The ejector pin 18 is slidably connected inside the mold sleeve 15. The top of the ejector pin 18 has a conical structure, and its top matches the mold sleeve 15. The second spring 17 is fixedly connected below the ejector pin 18, and its bottom has a spherical structure. By using the conical structure above the ejector pin 18 and its top matching the mold sleeve 15, this equipment can simultaneously perform the molding process and eject the molded part through the ejector pin 18. Below the support plate 2, there is a lifting clamping plate 14. The first upper template 8 is rotatably connected above the connecting rod 4. The second upper template 9 is slidably connected to the first upper template 8 at a symmetrical position. Injection holes are formed in both the second upper template 9 and the first upper template 8. 10. This device, by rotating the first upper template 8 above the connecting rod 4, allows the second upper template 9 to open synchronously to both sides under the push of the connecting rod 4. A support rod 19 is installed on the right side of the lifting clamp 14, and a lifting interface 21 is provided below the lifting plate 5. Cooling ports 11 are opened on the sides of the second upper template 9 and the first upper template 8, and the cooling ports 11 are a through structure. A forming cavity 16 is opened between the second upper template 9 and the mold sleeve 15. Guide grooves 7 are opened at the bottom of the second upper template 9 and the first upper template 8. The mold sleeve 15 is slidably connected between the second upper template 9 and the first upper template 8. First springs 12 are fitted on both sides of the mold sleeve 15. By making the cooling ports 11 a through structure, the device can utilize air circulation to accelerate the mold forming efficiency, while the first springs 12 on both sides of the mold sleeve 15 can use the symmetrical first springs 12 to cancel out the mutual forces and automatically close.

[0045] Working principle: When using a plastic molding die ejection structure, first connect various driving components such as hydraulic or pneumatic rods to the lifting interface 21. Then, install the equipment appropriately in the corresponding position. Next, inject the raw material into the injection hole 10 through the injection molding equipment. The material enters the molding cavity 16 through the injection hole 10 and cools and solidifies within the molding cavity 16. The solidified workpiece will be fitted onto the mold sleeve 15. Then, start the driving component to lift the lifting plate 5 upwards. During the upward movement of the lifting plate 5, since the lifting clamp 14 and the bearing plate 2 are in a fixed state, the lifting plate 5... Under pressure, the drive block 3 slides to the right and pushes the ejector pin 18 upward, ejecting the workpiece from the mold sleeve 15 through the ejector pin 18. At the same time, the connecting rod 4, which is rotatably connected to the side of the lifting plate 5, unfolds to both sides, pushing the second upper template 9 and the first upper template 8 to both sides, thereby exposing the workpiece, which can then be removed. After removal, the drive component retracts, the lifting plate 5 descends, the first spring 12 guides the second upper template 9 and the first upper template 8 back to their original positions, and the ejector pin 18 is pulled back to its original position by the second spring 17. Meanwhile, the lifting clamp 14 brings the drive block 3 back to the left.

[0046] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0047] 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 plastic forming mold ejection structure, comprising a support frame (1), a bearing plate (2), a drive block (3), a connecting rod (4) and a lifting interface (21); It is characterized in that: The support frame (1) is provided with a bearing plate (2), a drive block (3), a connecting rod (4) and a lifting plate (5) on the right side, the connecting rod (4) is installed on the upper side of the lifting plate (5), the bearing plate (2), a guide groove (7), a first upper mold plate (8), a second upper mold plate (9) and an injection hole (10) are arranged on the upper side of the connecting rod (4), the second upper mold plate (9) is provided with a cooling port (11) on the side, and the first spring (12) and the guide rod (13) are arranged on the inner side of the second upper mold plate (9), the guide block (20) is installed below the first upper mold plate (8), the mold sleeve (15), the second spring (17) and the ejector pin (18) are arranged below the first upper mold plate (8), the lifting clamp plate (14) is arranged below the bearing plate (2), the support rod (19) is installed on the right side of the lifting clamp plate (14), and the lifting interface (21) is arranged below the lifting plate (5).

2. The demolding and ejection structure for a plastic molding die according to claim 1, wherein The lifting plate (5) is slidably connected to the inner side of the support frame (1), the lifting interface (21) is fixedly connected to the diagonal intersection position below the lifting plate (5), a groove structure is formed on the left side of the lifting plate (5) at the middle line position, and a square groove structure is formed on the lifting plate (5) at the middle line position.

3. The demolding and ejection structure for a plastic molding die according to claim 2, wherein The lifting plate (5) is rotatably connected to the connecting rod (4) on the side, the connecting rod (4) adopts a double rod structure, the lifting plate (5) is slidably connected to the drive block (3) on the left side, square grooves are formed between the drive blocks (3), inclined surfaces are arranged at the middle line positions of the drive blocks (3), and the drive blocks (3) are in U-shaped structure as a whole.

4. The demolding and ejection structure for a plastic molding die according to claim 3, wherein The lifting clamp plate (14) is slidably connected to the middle line position of the drive block (3), the bearing plate (2) is fixedly connected to the right side of the lifting clamp plate (14), and the distance between the bearing plate (2) and the lifting clamp plate (14) is equal to the thickness of the lifting clamp plate (14), a circular groove structure is formed at the diagonal intersection position of the bearing plate (2), and a through hole structure is formed below the groove of the bearing plate (2).

5. The demolding and ejection structure for a plastic molding die according to claim 4, wherein The drive block (3) is embedded into the support rod (19) on the right side, the support rod (19) is in nail-shaped structure, and the support rod (19) penetrates through two layers of structure, the support rod (19) is sleeved with the bearing plate (2) on the upper side, and the support rod (19) penetrates through the bearing plate (2).

6. The demolding and ejection structure for a plastic molding die according to claim 5, wherein The lower mold plate (6) is stacked above the bearing plate (2), the support rod (19) is slidably connected in the lower mold plate (6), and the support rod (19) is immersed in half of the thickness of the lower mold plate (6).

7. The demolding and ejection structure for a plastic molding die according to claim 6, wherein The guide block (20) is fixedly connected above the lower mold plate (6), the guide block (20) is parallelly distributed in two, and the mold sleeve (15) is clamped between the lower mold plate (6) and the bearing plate (2).

8. The demolding and ejection structure for a plastic molding die according to claim 7, wherein The ejection pin (18) is slidably connected in the mold sleeve (15), the top of the ejection pin (18) is a conical structure, the top of the ejection pin (18) is consistent with the mold sleeve (15), the bottom of the ejection pin (18) is fixedly connected with the second spring (17), and the bottom of the second spring (17) is a spherical structure.

9. The demolding and ejection structure for a plastic molding die according to claim 8, wherein The first upper mold plate (8) is rotatably connected above the connecting rod (4), the second upper mold plate (9) is slidably connected at the symmetrical position of the first upper mold plate (8), and the second upper mold plate (9) and the first upper mold plate (8) are provided with injection molding holes (10).

10. The demolding and ejection structure for a plastic molding die according to claim 9, wherein The cooling openings (11) are formed in the side surfaces of the second upper mold plate (9) and the first upper mold plate (8), the cooling openings (11) are overall through structures, the forming cavities (16) are formed between the second upper mold plate (9) and the mold sleeve (15), the guide grooves (7) are formed in the bottoms of the second upper mold plate (9) and the first upper mold plate (8), the mold sleeve (15) is slidably connected between the second upper mold plate (9) and the first upper mold plate (8), and the first springs (12) are sleeved on the two sides of the mold sleeve (15).

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