An egg tray processing die

Abstract

The utility model relates to the field of egg tray processing mould, specifically a kind of egg tray processing mould, including injection mould body, the injection mould body includes bottom plate, the top of bottom plate is fixedly installed with lower mould, the top of lower mould is installed with upper mould, and the side of upper mould inner chamber is provided with injection port;The utility model moves downward and closes with lower mould by upper mould, and the movement of upper mould drives insertion block to insert into side seat and be clamped in the side of positioning plate, subsequently when upper mould moves upward, it can pull connecting plate and the frame that lifts move, and the frame that lifts lifts the egg tray after forming from forming groove, reaches the effect that it is convenient to take, solves the egg tray injection mould of current egg tray when using, and it needs artificial to take out the mould after forming from mould cavity after its egg tray solidification forming, and artificial taking is prone to uneven force, causes the problem of the damage of mould after forming.

Description

Technical Field

[0001] This utility model relates to the field of egg tray processing molds, specifically an egg tray processing mold. Background Technology

[0002] Plastic egg trays (mostly made of PP polypropylene or PE polyethylene) are commonly used in supermarket shelf displays and household storage due to their water resistance, drop resistance, and reusability. Their processing relies on injection molding (a few use vacuum forming, which has a simpler mold structure), and the mold design is consistent with the principle of injection molding.

[0003] Therefore, the processing of plastic egg cartons requires the use of injection molds. However, when using existing egg carton injection molds, after the egg cartons have solidified, the molded mold needs to be manually removed from the mold cavity. Manual removal can easily result in uneven force, causing damage to the molded mold and thus affecting the quality of the finished product. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, when using existing egg carton injection molds, the mold needs to be manually removed from the mold cavity after the egg carton has solidified. However, manual removal is prone to uneven force, which can damage the mold after it has solidified. This utility model proposes an egg carton processing mold.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an egg tray processing mold, including an injection mold body, the injection mold body including a base plate, a lower mold fixedly installed on the top of the base plate, an upper mold installed on the top of the lower mold, an injection port opened on one side of the inner cavity of the upper mold, a forming groove opened in the inner cavity of the lower mold, and a shaping block fixedly connected to the bottom of the upper mold.

[0006] The forming groove is equipped with a lifting mechanism, which includes a lifting frame installed inside the forming groove. A connecting plate is fixedly connected to one side of the lifting frame. The connecting plate is located inside the lower mold. A side seat is fixedly connected to one side of the connecting plate. There are four side seats. One side of the side seat is attached to the surface of the lower mold. Positioning plates are rotatably connected to both sides of the inner cavity of the side seat. An insertion block is engaged on one side of the positioning plate. A reinforcing plate is fixedly connected to one side of the insertion block. One side of the reinforcing plate is fixed to the surface of the upper mold.

[0007] Preferably, the injection port is provided with a scraping mechanism, which includes a blocking ring. The bottom of the blocking ring is fixed to the top of the upper mold. A rotating cover is threaded onto the surface of the blocking ring. Scraper rods are fixedly connected to both sides inside the rotating cover. The surface of the scraper rods is in contact with the inside of the injection port.

[0008] Preferably, a rotating shaft is rotatably connected to the top of the inner cavity of the positioning plate. Both ends of the rotating shaft are fixed inside the side seat. Torque springs are slidably sleeved on both sides of the rotating shaft surface. One end of the torsion spring is fixed inside the side seat, and the other end of the torsion spring is fixed to the surface of the positioning plate.

[0009] Preferably, a push rod is fixedly connected to one side of the positioning plate, and one side of the push rod extends through to the outside of the side seat and slides through the slot inside the side seat. The push rod is configured with a curved structure.

[0010] Preferably, grooves are provided on both sides of the inner wall of the upper mold. A return spring is fixedly connected to the top of the inner wall of the groove, and a pressure block is fixedly connected to the bottom of the return spring. The pressure block is slidably connected inside the groove, and the bottom of the pressure block is tightly fitted to the surface of the connecting plate.

[0011] Preferably, the inner cavity of the lower mold is fixedly connected to a cooling water pipe, and the cooling water pipe is multiple and distributed at equal intervals inside the lower mold.

[0012] Preferably, a support frame is fixedly connected to the surface of the base plate, and a cylinder is fixedly connected to the top of the support frame. The output end of the cylinder is fixedly connected to the top of the upper mold.

[0013] The advantages of this utility model are:

[0014] This invention utilizes an upper mold that moves downwards to close with the lower mold. The movement of the upper mold causes the insertion block to be inserted into the side seat and locked onto one side of the positioning plate. Subsequently, when the upper mold moves upwards, it can pull the connecting plate and the lifting frame to move. The lifting frame lifts the formed egg carton from the forming groove, achieving a convenient removal effect. This solves the problem that with existing egg carton injection molds, after the egg carton has solidified, the mold needs to be manually removed from the mold cavity, which is prone to uneven force and damage to the mold after molding. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the upper and lower mold structures of this utility model;

[0018] Figure 3 This utility model Figure 3 A magnified view of a portion of point A in the middle;

[0019] Figure 4 This utility model Figure 3 A magnified view of a portion of point B in the middle;

[0020] Figure 5 This is a schematic diagram showing the connection between the supporting frame and the connecting plate structure of this utility model;

[0021] Figure 6 This is a cross-sectional view of the side seat structure of this utility model;

[0022] Figure 7 This is a schematic diagram showing the connection between the insertion block and the positioning plate structure of this utility model.

[0023] In the diagram: 1. Injection mold body; 11. Base plate; 12. Lower mold; 13. Upper mold; 14. Stand; 15. Cylinder; 16. Shaping block; 17. Injection port; 18. Molding groove; 19. Groove; 110. Return spring; 111. Pressure block; 112. Cooling water pipe; 2. Scraping mechanism; 21. Rotating cover; 22. Blocking ring; 23. Scraper rod; 3. Lifting mechanism; 31. Side seat; 32. Insertion block; 33. Connecting plate; 34. Reinforcing plate; 35. Lifting frame; 36. Positioning plate; 37. Push rod; 38. Torsion spring; 39. Rotating shaft. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0026] This application discloses an egg tray processing mold. (Refer to...) Figure 1 and Figure 7 An egg carton processing mold includes an injection mold body 1, the injection mold body 1 includes a base plate 11, a lower mold 12 is fixedly installed on the top of the base plate 11, an upper mold 13 is installed on the top of the lower mold 12, an injection port 17 is opened on one side of the inner cavity of the upper mold 13, a forming groove 18 is opened in the inner cavity of the lower mold 12, and a shaping block 16 is fixedly connected to the bottom of the upper mold 13.

[0027] The forming groove 18 is provided with a lifting mechanism 3. The lifting mechanism 3 includes a lifting frame 35, which is installed inside the forming groove 18. A connecting plate 33 is fixedly connected to one side of the lifting frame 35. The connecting plate 33 is located inside the lower mold 12. A side seat 31 is fixedly connected to one side of the connecting plate 33. There are four side seats 31. One side of the side seat 31 is attached to the surface of the lower mold 12. Positioning plates 36 are rotatably connected to both sides of the inner cavity of the side seat 31. An insertion block 32 is snapped into one side of the positioning plate 36. A reinforcing plate 34 is fixedly connected to one side of the insertion block 32. One side of the reinforcing plate 34 is fixed to the surface of the upper mold 13.

[0028] Reference Figure 2 and Figure 3 The injection port 17 is equipped with a scraping mechanism 2. The scraping mechanism 2 includes a blocking ring 22. The bottom of the blocking ring 22 is fixed to the top of the upper mold 13. The surface of the blocking ring 22 is threadedly connected to a rotating cover 21. Both sides of the inside of the rotating cover 21 are fixedly connected to scraper rods 23. The surface of the scraper rods 23 fits in contact with the inside of the injection port 17. Through the threaded connection between the rotating cover 21 and the blocking ring 22, the injection port 17 can be closed to prevent external impurities from entering its interior. At the same time, the scraper rods 23 can extend into the injection port 17 and scrape off the residual injection plastic inside the injection port 17.

[0029] Reference Figure 6 and Figure 7 A rotating shaft 39 is rotatably connected to the top of the inner cavity of the positioning plate 36. Both ends of the rotating shaft 39 are fixed inside the side seat 31. Torque springs 38 are slidably sleeved on both sides of the surface of the rotating shaft 39. One end of the torsion spring 38 is fixed inside the side seat 31, and the other end of the torsion spring 38 is fixed to the surface of the positioning plate 36. The rotating shaft 39 provides support for the position of the positioning plate 36, allowing the positioning plate 36 to rotate smoothly. The torsion spring 38 absorbs energy when the positioning plate 36 rotates, and after further restoring its deformation, it allows the positioning plate 36 to fit snugly into the surface of the insertion block 32, thus positioning the insertion block 32 as it extends into the side seat 31.

[0030] Reference Figure 6 and Figure 7 A push rod 37 is fixedly connected to one side of the positioning plate 36. One side of the push rod 37 extends through to the outside of the side seat 31 and slides through the slot inside the side seat 31. The push rod 37 is set in a curved structure. The push rod 37 is set to increase the contact area between the operator's hand and the positioning plate 36, thereby facilitating the pushing or pulling of the positioning plate 36, so that the positioning plate 36 can be dislodged from the surface of the insertion block 32 under human action.

[0031] Reference Figure 2 and Figure 4The upper mold 13 has grooves 19 on both sides inside. A return spring 110 is fixedly connected to the top of the inner wall of the groove 19. A pressure block 111 is fixedly connected to the bottom of the return spring 110. The pressure block 111 is slidably connected inside the groove 19. The bottom of the pressure block 111 is tightly fitted to the surface of the connecting plate 33. The groove 19 provides an installation space for the return spring 110 and the pressure block 111. The pressure block 111 can press the top of the connecting plate 33 to prevent the connecting plate 33 from jumping.

[0032] Reference Figure 2 The inner cavity of the lower mold 12 is fixedly connected with a cooling water pipe 112. There are multiple cooling water pipes 112, which are distributed at equal distances inside the lower mold 12. Through the arrangement of the cooling water pipes 112, the heat of injection molding inside the lower mold 12 can be exchanged over a larger area, thus improving the cooling speed.

[0033] Reference Figure 1 A support frame 14 is fixedly connected to the surface of the base plate 11, and a cylinder 15 is fixedly connected to the top of the support frame 14. The output end of the cylinder 15 is fixedly connected to the top of the upper mold 13. The support frame 14 supports the position of the cylinder 15, making the cylinder 15 more stable when it works. The cylinder 15 can lift the upper mold 13 up or move it down, thus achieving the effect of closing or separating the lower mold 12 and the upper mold 13.

[0034] Working principle: First, the lifting frame 35 is placed in the forming groove 18. At this time, the four side seats 31 are attached to the outside of the lower mold 12. Then, the upper mold 13 is pushed downward by the cylinder 15 until the upper mold 13 and the lower mold 12 are closed. The movement of the upper mold 13 drives the pressure block 111 to move. Before the upper mold 13 and the lower mold 12 are closed, the pressure block 111 will first contact the connecting plate 33. Under the action of the return spring 110, the pressure block 111 will move into the groove 19 until it moves to the bottom. Figure 4Simultaneously, the movement of the upper mold 13 drives the movement of the reinforcing plate 34, which in turn drives the movement of the insertion block 32. When the insertion block 32 extends into the side seat 31 and contacts the positioning plate 36, the positioning plate 36 is subjected to force and rotates outward. The positioning plate 36 rotates around the pivot 39, causing the torsion spring 38 to deform. When the insertion block 32 extends to the end of the positioning plate 36, the torsion spring 38 recovers its deformation, causing the positioning plate 36 to engage with the surface of the insertion block 32, thereby positioning the insertion block 32 within the side seat 31. The mold is fixed in place, and then injection plastic is poured into the upper mold 13 through the injection port 17. The mold is cooled by the cooling water pipe 112 until it reaches room temperature. Finally, the upper mold 13 is pulled upward by the cylinder 15. The movement of the upper mold 13 drives the insertion block 32 and the side seat 31 to move. The movement of the side seat 31 drives the connecting plate 33 and the lifting frame 35 to move. The lifting frame 35 moves out of the lower mold 12. The movement of the lifting frame 35 lifts the molded egg tray from the lower mold 12, thus achieving the effect of easy material removal.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An egg tray processing mold, comprising an injection mold body (1), characterized in that: The injection mold body (1) includes a base plate (11), a lower mold (12) is fixedly installed on the top of the base plate (11), an upper mold (13) is installed on the top of the lower mold (12), an injection port (17) is opened on one side of the inner cavity of the upper mold (13), a forming groove (18) is opened in the inner cavity of the lower mold (12), and a shaping block (16) is fixedly connected to the bottom of the upper mold (13). The forming groove (18) is provided with a lifting mechanism (3). The lifting mechanism (3) includes a lifting frame (35). The lifting frame (35) is installed inside the forming groove (18). A connecting plate (33) is fixedly connected to one side of the lifting frame (35). The connecting plate (33) is located inside the lower mold (12). A side seat (31) is fixedly connected to one side of the connecting plate (33). There are four side seats (31). One side of the side seat (31) is attached to the surface of the lower mold (12). Positioning plates (36) are rotatably connected to both sides of the inner cavity of the side seat (31). An insertion block (32) is snapped into one side of the positioning plate (36). A reinforcing plate (34) is fixedly connected to one side of the insertion block (32). One side of the reinforcing plate (34) is fixed to the surface of the upper mold (13).

2. The egg tray processing mold according to claim 1, characterized in that: The injection port (17) is provided with a scraping mechanism (2). The scraping mechanism (2) includes a blocking ring (22). The bottom of the blocking ring (22) is fixed to the top of the upper mold (13). The surface of the blocking ring (22) is threadedly connected to a rotating cover (21). Both sides of the inside of the rotating cover (21) are fixedly connected to scraper rods (23). The surface of the scraper rods (23) is in contact with the inside of the injection port (17).

3. The egg tray processing mold according to claim 1, characterized in that: The top of the inner cavity of the positioning plate (36) is rotatably connected to a rotating shaft (39). Both ends of the rotating shaft (39) are fixed inside the side seat (31). Torque springs (38) are slidably sleeved on both sides of the surface of the rotating shaft (39). One end of the torsion spring (38) is fixed inside the side seat (31), and the other end of the torsion spring (38) is fixed to the surface of the positioning plate (36).

4. The egg tray processing mold according to claim 1, characterized in that: A push rod (37) is fixedly connected to one side of the positioning plate (36). One side of the push rod (37) extends through to the outside of the side seat (31) and slides in connection with the slot inside the side seat (31). The push rod (37) is configured with a curved structure.

5. The egg tray processing mold according to claim 1, characterized in that: The upper mold (13) has grooves (19) on both sides inside. A reset spring (110) is fixedly connected to the top of the inner wall of the groove (19). A pressure block (111) is fixedly connected to the bottom of the reset spring (110). The pressure block (111) is slidably connected inside the groove (19). The bottom of the pressure block (111) is tightly fitted to the surface of the connecting plate (33).

6. The egg tray processing mold according to claim 1, characterized in that: The inner cavity of the lower mold (12) is fixedly connected to a cooling water pipe (112), and there are multiple cooling water pipes (112) distributed at equal intervals inside the lower mold (12).

7. The egg tray processing mold according to claim 1, characterized in that: A support frame (14) is fixedly connected to the surface of the base plate (11), and a cylinder (15) is fixedly connected to the top of the support frame (14). The output end of the cylinder (15) is fixedly connected to the top of the upper mold (13).

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