Plastic mold with mold locking buckle and mold stacking mechanism

Abstract

The utility model discloses a plastic mould with a mould locking buckle and a mould stacking mechanism, which comprises an upper mould and a lower mould, the upper mould and the lower mould are combined to form a mould cavity, the lower mould is provided with a runner which is communicated with the mould cavity and is used for carrying out injection molding on the mould cavity, and the mould locking buckle is arranged on the runner. And a mold locking mechanism for locking after the upper mold and the lower mold are assembled is arranged on the upper mold. The mold locking buckle solves the problem that a traditional mold locking buckle is single in use mode in the prior art. The device has the advantages of simple structure, convenience in use, high degree of freedom and the like.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, and more particularly to a plastic mold with a mold locking buckle and a mold stacking mechanism. Background Art

[0002] A safety mold locking buckle, published on the Chinese Patent Website with publication number CN211221944U, belongs to the field of injection mold technology and comprises a plate A and a plate B, which are movably inserted and fitted together. Plate A is equipped with several limit and pressure components, while plate B is equipped with several locking buckle components. The locking buckle components and the limit and pressure components form a vertical structure with upper and lower limit positions, and are movably connected and secured by springs. The locking buckle assembly includes a locking plate, one end of which is provided with a limit and fixed locking pin that is threadedly connected to the locking plate and to plate B. The other end of the locking plate is provided with a locking notch that is locked with the limit and pressure components. It features a simple structure, high strength, easy assembly and disassembly, a high safety factor, and a long service life. It solves the problem of mold deformation during daily storage, reduces operational workload, and achieves time and labor savings. It also prevents gaps caused by hanging the mold, minimizing damage to the mold structure.

[0003] Although the safety locking buckle in the above patent has the advantage of a simple structure, the locking buckle component in the patent adopts a one-way locking groove. When in use, it can only be rotated in one direction to the limit clamping component for locking, and cannot be locked if rotated in the opposite direction. The usage method is relatively simple and the scope of application is small. Utility Model Content

[0004] In order to overcome the problem of a single use mode of the conventional mold locking buckle in the prior art, the present invention provides a plastic mold with a mold locking buckle and a mold coding mechanism, which has the advantage of multiple optional use modes.

[0005] The utility model discloses a plastic mold with a locking buckle and a mold-locking mechanism, comprising an upper mold and a lower mold, wherein the upper mold is provided with a locking mechanism for locking the upper mold and the lower mold after the upper mold and the lower mold are closed, wherein the locking mechanism comprises locking buckles respectively arranged on the front and rear sides of the upper mold and movably connected to the upper mold, wherein the front and rear sides of the upper mold are respectively provided with rotating shafts for installing the locking buckles, wherein one end of the locking buckle is movably sleeved on the rotating shaft, and the other end of the locking buckle is provided with a locking mechanism, wherein the locking mechanism comprises a locking pin inserted into the other end of the locking buckle.

[0006] There are many types of AB plate clamping structures on the market. The most widely used is screw + locking module, which is simple, convenient and low-cost. The disadvantage is that it is easy to lose and requires an Allen wrench when used.

[0007] Preferably, the locking pin is elastically resetably connected to the mold locking buckle.

[0008] Preferably, the left end of the lock pin is integrally formed with the lock pin and is provided with a lock head in the shape of a "convex" that matches the lock buckle.

[0009] Preferably, the other end of the locking buckle is provided with a through hole which matches the locking pin and has a convex cross-section.

[0010] Preferably, the right end of the lock pin is sleeved with a lock cap for pulling the lock pin out of the lock hole, and the lock pin located between the lock cap and the lock head is sleeved with a reset spring elastically connected to the through hole. One end of the reset spring is against the right end of the lock head, and the other end of the reset spring is against the inner wall of the through hole. The front and rear sides of the lower mold are respectively provided with lock holes for use with the lock pin.

[0011] The top of the mold is provided with a plurality of L-shaped limit blocks, and the upper end of the B plate is provided with a plurality of L-shaped limit blocks. The upper end of the B plate is provided with a plurality of L-shaped limit blocks. The rear mold is embedded in the upper end of the B plate. A lower ejector plate is provided between the lower mold and the B plate. An upper ejector plate is provided at the upper end of the lower ejector plate. An ejector pin is vertically connected to the upper ejector plate. The ejector pin passes through the upper ejector plate, the B plate, and the rear mold from bottom to top. The upper end of the B plate located on the left side of the rear mold core is embedded with a left wear-resistant plate used in conjunction with the No. 2 slider, and the B plate located below the right wear-resistant plate is provided with a transverse spring groove, and a return spring is arranged transversely in the transverse spring groove, and the right end of the No. 1 slider is vertically inserted with a pin, and the pin passes through the right wear-resistant plate and the lower end of the pin is against the right end of the return spring. The upper end of the B plate located on the left side of the rear mold core is embedded with a left wear-resistant plate used in conjunction with the No. 2 slider, and the B plate located below the left wear-resistant plate is provided with a longitudinal spring groove, and a limit spring is longitudinally arranged in the longitudinal spring groove, and a "T"-shaped positioning column is provided on the top of the limit spring, and the upper end of the positioning column passes through the left wear-resistant plate, and the bottom end of the No. 2 slider is provided with a triangular groove used in conjunction with the positioning column.

[0012] The utility model can complete the desired action without the help of any tools when used. It is mainly suitable for small and medium-sized molds, has a simple structure, and is mainly composed of a locking buckle, equal height screws, a spring, a locking cap and a locking pin.

[0013] During operation, when the upper and lower molds are opened, the technician pinches the locking caps on the front and rear sides of the upper mold with his hands, and then pulls them back with force. The locking pin is connected and fixed to the locking cap through a thread. At the same time, the locking pin will leave the locking hole of the lower mold. Then, turn the locking cap to rotate the locking buckle. The user can turn it clockwise or counterclockwise according to his preference, and rotate the locking buckle to a certain angle to reach the positioning hole position. Then, release the locking pin. Under the elastic force of the reset spring, the locking pin will be inserted into the positioning hole of the upper mold. After that, you only need to manually separate the upper and lower molds.

[0014] When the upper mold and the lower mold are closed, the steps are opposite to the mold opening steps. First, the upper mold and the lower mold are manually closed. After closing the mold, the technician pinches the locking cap with his hand and then pulls it back hard. The locking pin is connected and fixed together with the locking cap through a thread. At the same time, the locking pin will leave the positioning hole of the upper mold. Then, turn the locking cap to rotate the locking buckle. The user can turn it clockwise or counterclockwise according to his preference, and rotate the locking buckle to a certain angle to reach the locking hole position. Then release the locking pin. Under the elastic force of the reset spring, the locking pin will be inserted into the locking hole of the upper mold to complete the locking of the upper and lower molds.

[0015] The utility model adopts code mold gaskets and hexagon socket screws to fix the upper code mold plate and the lower code mold plate, and then fixes the code mold screws on the gaskets, so that the code mold screws are dedicated to the mold and are not easy to lose, which can save code mold time.

[0016] The utility model places the spring in the groove of plate B, then covers it with a wear-resistant plate and secures it with a hexagon socket screw. Meanwhile, the pin is placed in the slider and secured with a headless screw, forming an integral part of the slider stroke. This can significantly reduce the space occupied by the spring and reduce production costs.

[0017] The utility model combines a positioning column and a spring. The positioning column is fixed with a wear-resistant plate, and a spring is added below the positioning column. This design has good positioning effect and low cost, and is convenient for later maintenance and replacement.

[0018] The working principle is: The mold is assembled with all parts, the mold clamp in the locked position, and the die-locking screws secured to the gasket. The die-locking screws in other locations are positioned similarly. The mold is then loaded into the injection molding machine using the mold hanging screws and the crane. Finally, the die-locking screws on the front and rear mold sides are tightened into the fixed side panel of the injection molding machine using an Allen wrench. Installation is simple, and no additional mounting parts are required.

[0019] The plastic material passes through the hot nozzle and runner into the enclosed area consisting of the front mold core, rear mold core, slider, and ejector pin. Through the injection molding machine's pressure maintenance and mold cooling processes, the product is injection molded. The mold is now ready to open. The injection molding machine plate moves backward, simultaneously driving the movable side of the mold backward. Driven by the inclined guide pin, the slider moves backward until it contacts the stop block, at which point it stops. The pin also moves backward, stopping the slider, and the inclined guide pin disengages from the slider. The spring prevents the slider from moving forward and causing a collision during mold closing.

[0020] The slider moves backward under the action of the inclined guide column until it contacts the limit block and stops moving backward. At the same time, the positioning column is embedded in the triangular groove of the slider to prevent the slider from moving forward. In this way, the slider is separated from the product. Then, the mold drives the product out of the rear mold core through the lower ejector plate, upper ejector plate and ejector. At this time, the robot arm on the injection molding machine removes the product.

[0021] The upper and lower ejector plates and ejectors are reset by springs on the mold, and the fixed side panel of the injection molding machine drives the movable side mold fixed on it forward. When the slider contacts the inclined guide pin, the movable side mold continues to move forward. At the same time, the inclined guide pin drives the slider toward the center of the mold. The pin fixed to the slider also compresses the spring until the slider head contacts the rear mold core and stops moving toward the center. At this time, the slider on the other side also moves toward the center of the mold under the action of the inclined guide pin. By then, the slider groove has disengaged from the positioning pin, and the positioning pin has lost its function until the slider head contacts the rear mold core and stops moving toward the center. At this point, the mold is closed, and the plastic can enter the mold cavity through the hot nozzle, repeating the previous action.

[0022] The utility model has the following beneficial effects: simple structure, convenient use and high degree of freedom. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] Figure 2 This is a schematic diagram of the upper mold structure of the present utility model.

[0025] Figure 3 This is a schematic diagram of the lower mold structure of the present utility model.

[0026] Figure 4 It is a top view of the lower mold of the present utility model.

[0027] Figure 5 It is a front view of the utility model.

[0028] Figure 6 It is a side view of the present utility model.

[0029] Figure 7 This is an exploded diagram of the code module structure of the present invention.

[0030] Figure 8 This is a cross-sectional view of the lower mold of the utility model after mold opening.

[0031] Figure 9 This is an assembly view of the B plate and the return spring of the utility model.

[0032] Figure 10 It is a cross-sectional view of the locking buckle of the utility model.

[0033] Figure 11 This is a schematic diagram of the action structure of the mold locking buckle of the present utility model.

[0034] Figure 12 This is an exploded view of the locking buckle of the utility model.

[0035] 2. Upper code template, 3. Insulation board, 4. A plate, 5. B plate, 6. Square iron, 7. Upper ejector plate, 8. Lower ejector plate, 9. Lower code template, 12. Front mold core, 13. Rear mold core, 14. Slider No. 1, 15. Shovel, 16. Return spring, 17. Pin, 19. Limit block, 20. Slider No. 2, 21. Positioning column, 22. Limit spring, 27. No. 2 oblique guide column, 28. No. 1 oblique guide column, 33. Left wear-resistant plate, 34. Locking buckle, 35. Locking cap, 36. Rotating shaft, 37. Locking pin, 38. Return spring, 39. Ejector, 40. Right wear-resistant plate. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described in detail with reference to the embodiments and the accompanying drawings.

[0037] Example: According to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 , Attachment Figure 8 , Attachment Figure 9 , Attachment Figure 10 , Attachment Figure 11 and attached Figure 12To further illustrate the utility model, in this example, a plastic mold with a locking buckle and a mold-locking mechanism includes an upper mold and a lower mold. The upper mold is provided with a locking mechanism for locking the upper and lower molds after they are closed. The locking mechanism includes locking buckles 34 respectively arranged on the front and rear sides of the upper mold and movably connected to the upper mold. The front and rear sides of the upper mold are respectively provided with rotating shafts 36 for installing the locking buckles 34. One end of the locking buckle 34 is movably connected to the rotating shaft 36. The other end of the locking buckle 34 is provided with a locking mechanism. The locking mechanism includes a locking pin 37 inserted into the other end of the locking buckle 34.

[0038] The locking pin 37 is elastically resetably connected to the mold locking buckle 34 .

[0039] The left end of the lock pin 37 is integrally formed with the lock pin 37 and is provided with a lock head that matches the lock buckle and is in a "convex" shape.

[0040] The other end of the locking buckle 34 is provided with a through hole that matches the locking pin 37 and has a convex cross-section.

[0041] The right end of the lock pin 37 is sleeved with a lock cap 35 for pulling the lock pin 37 out of the lock hole. The lock pin 37 located between the lock cap 35 and the lock head is sleeved with a reset spring 38 elastically reset connected to the through hole. One end of the reset spring 38 is against the right end of the lock head, and the other end of the reset spring 38 is against the inner wall of the through hole. The front and rear sides of the lower mold are respectively provided with lock holes for use with the lock pin 37.

[0042] The upper mold includes an upper code template 2, an A plate 4 is provided below the upper code template 2, an insulation board 3 is installed between the upper code template 2 and the upper end of the A plate 4, and a front mold core 12 is embedded at the lower end of the A plate 4. The right end of the front mold core 12 is provided with a No. 1 slider 14, and the left end of the front mold core 12 is provided with a No. 2 slider 20 used in conjunction with the No. 1 slider 14. The right end of the No. 1 slider 14 is provided with a shovel 15 for driving the No. 1 slider 14. The shovel 15 is connected to the right end of the No. 1 slider 14 by plugging a No. 1 oblique guide column 28. The front mold core 1 2 is connected to the left end of the No. 2 slider 20 by plugging in the No. 2 oblique guide column 27. The lower mold includes a lower code template 9, a B plate 5 is provided above the lower code template 9, and a plurality of "L"-shaped limit blocks 19 are embedded on the periphery of the B plate 5. The upper end of the B plate 5 is embedded in the rear mold core 13. A lower ejector plate 8 is provided between the lower code template 9 and the B plate 5. An upper ejector plate 7 is provided on the upper end of the lower ejector plate 8. An ejector pin 39 is vertically inserted on the upper ejector plate 7. The ejector pin 39 passes through the upper ejector plate 7, the B plate 5, and the rear mold core 13 from bottom to top. The upper ends of the lower code templates 9 on the left and right sides of the lower ejector plate 8 are respectively provided with square irons 6 for supporting the B plate 5, the right side of the rear mold core 13 is provided with a No. 1 slider 14, the left side of the rear mold core 13 is provided with a No. 2 slider 20 used in conjunction with the No. 1 slider 14, the upper end of the B plate 5 located on the right side of the rear mold core 13 is embedded with a right wear-resistant plate 40 used in conjunction with the No. 1 slider 14, and a transverse spring groove is provided on the B plate 5 below the right wear-resistant plate 40. A return spring 16 is transversely arranged in the transverse spring groove, and a pin 17 is vertically inserted at the right end of the No. 1 slider 14. The pin The nail 17 passes through the right wear-resistant plate 40 and the lower end of the pin 17 is against the right end of the return spring 16. The upper end of the B plate 5 located on the left side of the rear mold core 13 is embedded with a left wear-resistant plate 33 used in conjunction with the No. 2 slider 20. A longitudinal spring groove is provided on the B plate 5 below the left wear-resistant plate 33. A limit spring 22 is longitudinally arranged in the longitudinal spring groove. A "T"-shaped positioning column 21 is provided on the top of the limit spring 22. The upper end of the positioning column 21 passes through the left wear-resistant plate 33, and the bottom end of the No. 2 slider 20 is provided with a triangular groove used in conjunction with the positioning column 21.

[0043] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. A plastic mold with a mold lock buckle and a mold stacking mechanism, comprising an upper mold and a lower mold, characterized in that: The upper mold is provided with a locking mechanism for locking the upper mold and the lower mold after the upper mold and the lower mold are closed. The locking mechanism includes locking buckles (34) respectively arranged on the front and rear sides of the upper mold and movably connected to the upper mold. The front and rear sides of the upper mold are respectively provided with rotating shafts (36) for installing the locking buckles (34). One end of the locking buckle (34) is movably sleeved on the rotating shaft (36). The other end of the locking buckle (34) is provided with a locking mechanism. The locking mechanism includes a locking pin (37) inserted into the other end of the locking buckle (34).

2. A plastic mold with a mold lock buckle and a mold locking mechanism according to claim 1, characterized in that: The locking pin (37) is elastically resetably connected to the mold locking buckle (34).

3. A plastic mold with a mold lock buckle and a mold locking mechanism according to claim 1, characterized in that: The left end of the lock pin (37) is integrally formed with the lock pin (37) and is provided with a lock head that matches the lock buckle and is in a "convex" shape.

4. A plastic mold with a mold lock buckle and a mold locking mechanism according to claim 1, characterized in that: The other end of the locking buckle (34) is provided with a through hole that matches the locking pin (37) and has a "convex" shaped cross section.

5. The plastic mold with a mold locking buckle and a mold locking mechanism according to claim 1, characterized in that: The right end of the lock pin (37) is sleeved with a lock cap (35) for pulling the lock pin (37) out of the lock hole, and the lock pin (37) located between the lock cap (35) and the lock head is sleeved with a reset spring (38) elastically reset and connected to the through hole, one end of the reset spring (38) is against the right end of the lock head, and the other end of the reset spring (38) is against the inner wall of the through hole, and the front and rear sides of the lower mold are respectively provided with lock holes for use with the lock pin (37).

6. The plastic mold with a mold locking buckle and a mold locking mechanism according to claim 1, characterized in that: The upper mold includes an upper code template (2), an A plate (4) is provided below the upper code template (2), a heat insulation plate (3) is installed between the upper code template (2) and the upper end of the A plate (4), a front mold core (12) is embedded at the lower end of the A plate (4), a No. 1 slider (14) is provided at the right end of the front mold core (12), a No. 2 slider (20) used in conjunction with the No. 1 slider (14) is provided at the left end of the front mold core (12), a shovel (15) for driving the No. 1 slider (14) is provided at the right end of the No. 1 slider (14), the shovel (15) is connected to the right end of the No. 1 slider (14) by plugging a No. 1 inclined guide column (28), and the front mold core (12) is connected to the left end of the second slider (20) by plugging in the second inclined guide column (27), the lower mold includes a lower code template (9), a B plate (5) is provided above the lower code template (9), a plurality of "L"-shaped limit blocks (19) are embedded on the periphery of the B plate (5), the upper end of the B plate (5) is embedded in the rear mold core (13), a lower ejector plate (8) is provided between the lower code template (9) and the B plate (5), an upper ejector plate (7) is provided on the upper end of the lower ejector plate (8), an ejector pin (39) is vertically plugged on the upper ejector plate (7), and the ejector pin (39) passes through the upper ejector plate (7), the B plate (5), the rear mold core (13) in sequence from bottom to top. 3), the upper ends of the lower code templates (9) on the left and right sides of the lower ejector plate (8) are respectively provided with square irons (6) for supporting the B plate (5), the right side of the rear mold core (13) is provided with a No. 1 slider (14), the left side of the rear mold core (13) is provided with a No. 2 slider (20) used in conjunction with the No. 1 slider (14), the upper end of the B plate (5) on the right side of the rear mold core (13) is embedded with a right wear-resistant plate (40) used in conjunction with the No. 1 slider (14), the B plate (5) located below the right wear-resistant plate (40) is provided with a transverse spring groove, a return spring (16) is transversely arranged in the transverse spring groove, and a pin (17) is vertically inserted at the right end of the No. 1 slider (14), The pin (17) passes through the right wear-resistant plate (40) and the lower end of the pin (17) abuts against the right end of the return spring (16). The upper end of the B plate (5) located on the left side of the rear mold core (13) is embedded with a left wear-resistant plate (33) used in conjunction with the second slider (20). A longitudinal spring groove is provided on the B plate (5) below the left wear-resistant plate (33). A limit spring (22) is longitudinally arranged in the longitudinal spring groove. A "T"-shaped positioning column (21) is provided on the top of the limit spring (22). The upper end of the positioning column (21) passes through the left wear-resistant plate (33). The bottom end of the second slider (20) is provided with a triangular groove used in conjunction with the positioning column (21).

Images