Injection mold convenient to split

Abstract

The utility model discloses an injection mold convenient to split, which comprises a base, two vertical frames are fixedly mounted on the base, two split mold seats are arranged between the two vertical frames, a threaded rod is rotatably connected in the base, two sliding seats are sleeved on the threaded rod, and the top ends of the two sliding seats are fixedly mounted on the two split mold seats respectively. Grooves are formed in the sides, away from each other, in the two split mold bases, demolding plates are inserted into the two grooves, ejector rods are fixedly installed on the sides, close to each other, of the two vertical frames, and the sides, close to each other, of the two ejector rods extend into the grooves and are fixedly installed on the corresponding demolding plates correspondingly. According to the injection mold convenient to split, damage caused by excessive mutual extrusion of the two split mold bases in the mold closing process can be avoided, meanwhile, a formed workpiece in the split mold bases can be automatically ejected out and demolded during mold splitting, a worker can conveniently take the formed workpiece, and therefore the working efficiency of injection molding is further improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold that facilitates mold separation. Background Technology

[0002] Injection molds are tools used to produce plastic products. Molten plastic material is injected into the mold, and through pressure and cooling processes, the desired shape is formed. Injection molds mainly consist of molding parts, a gating system, guiding components, a demolding mechanism, a core-pulling mechanism, a mold temperature control system, and a venting system. These components work together to ensure that plastic products are precisely molded to the predetermined shape and size.

[0003] A search revealed that patent application CN201921523596.8 discloses an injection mold for easy mold separation in injection molding production. The mold includes a base plate, with support plates fixedly connected to both sides of the top of the base plate. A top plate is fixedly connected to the top of the support plates. A first hydraulic cylinder is mounted on the bottom of the top plate. A lifting frame is fixedly connected to the bottom end of the output shaft of the first hydraulic cylinder. An upper mold base is mounted on the bottom of the lifting frame. A mold separation frame is located below the upper mold base. A lower mold base is mounted on the top of the mold separation frame, and the lower mold base is located directly below the upper mold base. This invention provides an injection mold for easy mold separation in injection molding production, characterized by simple mold separation, time and labor saving, and high stability.

[0004] However, this patent has its shortcomings. During the use of this type of injection mold, the upper mold base and the lower mold base are mainly squeezed together by the first hydraulic cylinder and the second hydraulic cylinder to squeeze them towards each other. Due to the lack of a pressure detection structure, excessive squeezing between the upper mold base and the lower mold base can easily cause damage during operation. In addition, during the mold parting process, the molded parts are easy to stick to the upper mold base or the lower mold base and are difficult to remove, which can easily affect the efficiency of injection molding.

[0005] Therefore, we propose an injection mold that facilitates mold separation. Utility Model Content

[0006] The purpose of this invention is to provide an injection mold that facilitates mold separation, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for easy mold splitting, comprising a base, two uprights fixedly mounted on the base, two split mold bases disposed between the two uprights, a threaded rod rotatably connected inside the base, two slides sleeved on the threaded rod, the top ends of the two slides respectively fixedly mounted on the two split mold bases, grooves provided on opposite sides of the two split mold bases, ejector plates inserted into the grooves, push rods fixedly mounted on opposite sides of the two uprights, the push rods extending into the grooves on opposite sides and respectively fixedly mounted on corresponding ejector plates, first mounting plates and second mounting plates fixedly mounted at the front and rear ends of the two split mold bases respectively, pressure rods fixedly mounted on the right side of the two first mounting plates, and pressure sensors fixedly mounted on the left side of the two second mounting plates.

[0008] Optionally, a positioning frame is fitted on the outer side of the top of the two split mold bases, and a U-shaped frame is fixedly installed on the side of the two positioning frames that are far apart from each other. A connecting frame is fixedly installed on the side of the two U-shaped frames that are far apart from each other. By fitting the positioning frame on the outer side of the two split mold bases, the two split mold bases can fit more tightly together.

[0009] Optionally, a cylinder is fixedly installed at the bottom of each of the two uprights, and the output ends of the two cylinders are respectively fixedly installed on the two connecting frames. The cylinders drive the connecting frames to rise and fall, which is beneficial to the use of this equipment.

[0010] Optionally, buffer pads are fixedly fitted on the outer side of the top rod on the side of the two uprights that are close to each other. The buffer pads can prevent the two split mold bases from directly hitting the uprights when they slide toward the side that is far apart from each other.

[0011] Optionally, the threaded rod is provided with two opposing threads, and the two slides are respectively fitted onto the two threads. This design is beneficial to the use of the equipment.

[0012] Optionally, a motor is fixedly installed on the right side of the base, and the output end of the motor is fixedly installed on the threaded rod. The motor drives the threaded rod to rotate, which is beneficial to the use of this equipment.

[0013] Optionally, injection ports are fixedly installed at the top of both of the split mold bases, which facilitates injection molding.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Through the cooperation of the upright frame, positioning frame, connecting frame, cylinder, pressure sensor, U-shaped frame, groove, demolding plate, ejector rod, first mounting plate, pressure rod and second mounting plate, the two split mold bases can be prevented from being excessively squeezed against each other during the mold closing process, thus avoiding damage. At the same time, the molded parts in the split mold bases can be automatically ejected and demolded during mold opening, making it convenient for workers to pick them up, thereby further improving the efficiency of injection molding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an injection mold that facilitates mold separation according to this utility model;

[0017] Figure 2 This is a cross-sectional view of an injection mold that facilitates mold separation according to the present invention;

[0018] Figure 3 This is a cross-sectional view of the first mounting plate in an injection mold that facilitates mold separation according to this utility model;

[0019] Figure 4 This utility model relates to an injection mold that facilitates mold separation. Figure 3 A magnified view of A in the middle.

[0020] In the diagram: 1. Base; 2. Stand; 3. Split mold base; 4. Positioning frame; 5. Connecting frame; 6. Cylinder; 7. Buffer pad; 8. Threaded rod; 9. Slide; 10. Motor; 11. Pressure sensor; 12. U-shaped frame; 13. Groove; 14. Demolding plate; 15. Ejector rod; 16. Injection port; 17. First mounting plate; 18. Pressure rod; 19. Second mounting plate. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 4This utility model provides an injection mold that facilitates mold splitting, including a base 1, two uprights 2 fixedly mounted on the base 1, and two split mold bases 3 disposed between the two uprights 2. A threaded rod 8 is rotatably connected inside the base 1, and two slides 9 are sleeved on the threaded rod 8. The top ends of the two slides 9 are respectively fixedly mounted on the two split mold bases 3. Grooves 13 are provided on the opposite side of the two split mold bases 3, and ejector plates 14 are inserted into the two grooves 13. Push rods 15 are fixedly mounted on the opposite side of the two uprights 2, and the two push rods 15 extend into the grooves 13 and are respectively fixedly mounted on the corresponding ejector plates 14. First mounting plates 17 and second mounting plates 19 are fixedly mounted on the front and rear ends of the two split mold bases 3, respectively. Pressure rods 18 are fixedly mounted on the right side of the two first mounting plates 17, and pressure sensors 11 are fixedly mounted on the left side of the two second mounting plates 19.

[0023] Positioning frames 4 are fitted onto the outer tops of the two split mold bases 3. U-shaped frames 12 are fixedly installed on the opposite sides of the two positioning frames 4. Connecting frames 5 are fixedly installed on the opposite sides of the two U-shaped frames 12. The positioning frames 4, fitted onto the outer sides of the two split mold bases 3, ensure a tighter fit between them. Cylinders 6 are fixedly installed at the bottom inner ends of the two uprights 2. The output ends of the two cylinders 6 are fixedly installed on the two connecting frames 5. The cylinders 6 drive the connecting frames 5 to rise and fall, facilitating the use of this equipment. The two uprights 2, on the side closer to each other, are fixed on the outer side of the top rod 15. A buffer pad 7 is provided to prevent the two split mold bases 3 from directly impacting the stand 2 when they slide towards each other. The threaded rod 8 has two opposing threads, and the two slide blocks 9 are respectively fitted onto the two threads. This design is beneficial to the use of the equipment. A motor 10 is fixedly installed on the right side of the base 1. The output end of the motor 10 is fixedly installed on the threaded rod 8. The motor 10 drives the threaded rod 8 to rotate, which is beneficial to the use of the equipment. Injection ports 16 are fixedly installed on the top of the two split mold bases 3. The injection ports 16 are reserved to facilitate injection molding.

[0024] Working Principle: Assuming this equipment is connected to an external PLC controller, when in use, the merging switch is turned on. At this time, the motor 10 drives the threaded rod 8 to rotate forward, causing the two slide blocks 9 to drive the two split mold bases 3 to slide and merge towards each other. When the pressure rod 18 presses against the pressure sensor 11, the pressure sensor 11 transmits a signal to the external PLC controller. The PLC controller immediately stops the motor 10. Then, the output end of the cylinder 6 drives the connecting frame 5, U-shaped frame 12, and positioning frame 4 to descend and fit onto the outside of the two split mold bases 3, thus completing the mold closing and injection molding. After injection molding, the mold is opened. When the switch is turned on, the cylinder 6 drives the positioning frame 4 to rise and reset, and the motor 10 drives the threaded rod 8 to reverse, causing the two slide blocks 9 to drive the two split mold bases 3 to slide towards the side away from each other. At this time, the molded workpiece can be ejected from the split mold base 3 by using the ejector plate 14 and the ejector rod 15 for demolding. This type of injection mold that facilitates mold separation is easy to use. The above components can prevent the two split mold bases 3 from being squeezed excessively during the mold closing process, which would cause damage. At the same time, it can automatically eject the molded workpiece in the split mold base 3 for demolding when the mold is separated, making it convenient for workers to take it out, thereby further improving the efficiency of injection molding.

[0025] 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. An injection mold that facilitates mold separation, characterized in that, Includes a base (1), on which two uprights (2) are fixedly installed. Two split mold bases (3) are provided between the two uprights (2). A threaded rod (8) is rotatably connected inside the base (1). Two slides (9) are sleeved on the threaded rod (8). The tops of the two slides (9) are respectively fixedly installed on the two split mold bases (3). Grooves (13) are provided on opposite sides of the two split mold bases (3). A stripping template (14) is inserted into each of the two grooves (13). The two uprights (2) are each fixedly installed with a top rod (15) on one side close to each other. The two top rods (15) extend into the groove (13) on one side close to each other and are respectively fixedly installed on the corresponding demolding template (14). The front and rear ends of the two split mold bases (3) are respectively fixedly installed with a first mounting plate (17) and a second mounting plate (19). The right side of the two first mounting plates (17) is fixedly installed with a pressure rod (18), and the left side of the two second mounting plates (19) is fixedly installed with a pressure sensor (11).

2. The injection mold for easy mold separation according to claim 1, characterized in that, Positioning frames (4) are fitted on the outer sides of the top of the two separate mold bases (3). U-shaped frames (12) are fixedly installed on the side of the two positioning frames (4) that are far apart from each other. Connecting frames (5) are fixedly installed on the side of the two U-shaped frames (12) that are far apart from each other.

3. The injection mold for easy mold separation according to claim 2, characterized in that, A cylinder (6) is fixedly installed at the bottom of each of the two uprights (2), and the output ends of the two cylinders (6) are fixedly installed on the two connecting frames (5).

4. The injection mold for easy mold separation according to claim 1, characterized in that, Both of the two uprights (2) are fitted with buffer pads (7) on the outer side of the top rod (15) on the side close to each other.

5. The injection mold for easy mold separation according to claim 1, characterized in that, The threaded rod (8) is provided with two opposing threads, and the two slides (9) are respectively fitted on the two threads.

6. The injection mold for easy mold separation according to claim 1, characterized in that, A motor (10) is fixedly installed on the right side of the base (1), and the output end of the motor (10) is fixedly installed on the threaded rod (8).

7. The injection mold for easy mold separation according to claim 1, characterized in that, Injection ports (16) are fixedly installed at the top of both of the two separate mold bases (3).

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