Injection mold positioning device

Abstract

The utility model discloses an injection mold positioning device which comprises a supporting piece, a lower mold and an upper mold, the supporting piece comprises a supporting table, a supporting frame is vertically fixed on the bottom face of the supporting table, a fixing screw is vertically installed on the supporting frame in a threaded penetrating mode, sliding frames are vertically fixed on the two sides of the supporting table, and the lower mold is fixed on the top face of the supporting table. Two rotating plates are symmetrically and vertically fixed to the symmetrical vertical end faces of the two sides of the outer portion of the lower mold, clamping wheels are horizontally and rotationally connected to the two rotating plates in the vertical direction, sliding strips are vertically fixed to the bottoms of the two rotating plates, the upper mold is arranged above the lower mold, and sliding frames are horizontally fixed to the two sides of the upper mold; and the sliding frame is vertically mounted in the sliding frame in a sliding manner. According to the utility model, the problems that the guide rod rubs with the guide hole of the mold when the existing mold is opened and closed, the gap between the guide rod and the guide hole of the mold is increased due to long-time friction, and the mold is closed to generate deviation when the mold is opened and closed in a larger gap, so that the opening and closing accuracy of the mold is influenced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold positioning device. Background Art

[0002] The injection mold is the most important component in the injection molding process. The injection mold is usually provided with a cavity, wherein the shape of the cavity is set according to the shape of the plastic product. The molding liquid is injected into the cavity so that the molding liquid completely fills the cavity, and then the cavity is cooled and formed to obtain a finished injection molded part. Injection molds are widely used in injection molding production.

[0003] The existing announcement number is CN203580040U, and the name is an injection mold, including a base for injection molding and a pressure plate for pressing against the base, the pressure plate is concavely provided with a molding cavity for injection molding on the plate surface facing the base, and the pressure plate is connected to an ejection device for ejecting the molded injection product from the molding cavity on the plate surface facing away from the base. The ejection device includes an ejector plate, and the ejector plate is provided with an ejector pin on the plate surface facing the pressure plate, and the bottom of the molding cavity is provided with an ejector pin socket that penetrates the pressure plate for the ejector pin to be inserted. The ejection device also includes a pulling device for pulling the ejector plate. The cooperation of the power device, the buckle and the ejector rod replaces the traditional spring structure, and is durable, efficient and stable.

[0004] However, when the above-mentioned injection mold is closed and guided, the guide rod is used to guide the mold to open and close. However, when the mold is opened and closed, friction occurs between the guide rod and the mold guide hole. Long-term friction causes an increase in the gap between the guide rod and the mold guide hole. The larger gap when the mold is opened and closed causes deviations in the mold closing, thereby affecting the accuracy of the mold opening and closing. Utility Model Content

[0005] The utility model aims to provide an injection mold positioning device, aiming to improve the above-mentioned problems.

[0006] The utility model is achieved in this way:

[0007] A positioning device for an injection mold comprises a support member, a lower mold and an upper mold, the support member comprises a support platform, a support frame is vertically fixed to the bottom surface of the support platform, and fixing screws are installed through vertical threads on the support frame, sliding frames are vertically fixed to both sides of the support platform, the lower mold is fixed to the top surface of the support platform, and two rotating plates are symmetrically and vertically fixed to the symmetrical vertical end surfaces on both sides of the outer side of the lower mold, the two rotating plates are horizontally rotated in the vertical direction and connected with clamping wheels, and sliding bars are vertically fixed to the bottom of the two rotating plates, the upper mold is arranged above the lower mold, and sliding frames are horizontally fixed to both sides of the upper mold, and the sliding frames are vertically slidably installed in the sliding frame, clamping frames are vertically fixed to the symmetrical vertical end surfaces on both sides of the upper mold, and the clamping frames are vertically slidably inserted on the sliding bars, clamping bars are vertically fixed to the vertical end surfaces on both sides of the clamping frame, and the clamping bars are pressed against the clamping wheels.

[0008] Furthermore, a screw rod is vertically rotatably connected in the sliding frame, and a motor is vertically fixed on the top surface of the sliding frame, and the output end of the motor is fixed on the rotating shaft of the screw rod.

[0009] Furthermore, a screw barrel is vertically fixed in the slide on one side of the upper mold, and the screw barrel is threadably connected with the screw rod.

[0010] Furthermore, guide convex strips are horizontally fixed on both sides of the top surface of the lower mold.

[0011] Furthermore, guide concave strips are horizontally fixed on both sides of the top surface of the upper mold, and the guide concave strips are limitedly plugged with the guide convex strips.

[0012] Furthermore, a sleeve frame is horizontally fixed on the bottom surface of the lower mold, and mounting screws are installed through horizontal threads on both sides of the sleeve frame.

[0013] Furthermore, screw grooves are horizontally opened on both sides of the support platform, and the screw grooves are assembled with the threads of the mounting screws.

[0014] Compared with the prior art, the beneficial effect of the utility model is that when the lower mold and the upper mold are closed during use, the upper mold slides vertically downward on the sliding frames on both sides of the support platform, and the clamping frames on both sides of the upper mold slide vertically and are inserted into the sleeve frames on both sides of the lower mold, and then the clamping strips on both sides of the clamping frame slide vertically and are clamped in the clamping wheels of the rotating plate, thereby guiding the lower mold and the upper mold to close in the vertical direction, thereby improving the accuracy of the closing of the lower mold and the upper mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0018] Figure 3 It is a schematic structural diagram of the support member in the embodiment of the utility model in a disassembled state;

[0019] Figure 4 It is a schematic structural diagram of the lower mold in the decomposed state in the embodiment of the utility model;

[0020] Figure 5 It is a schematic structural diagram of the upper mold in the disassembled state in an embodiment of the utility model.

[0021] In the figure: 1. support member; 11. support platform; 111. screw groove; 12. support frame; 121. fixing screw; 13. slide frame; 14. screw; 15. motor; 2. lower mold; 21. rotating plate; 22. clamping wheel; 23. slide bar; 24. guide convex strip; 25. sleeve frame; 251. mounting screw; 3. upper mold; 31. clamping frame; 32. clamping strip; 33. slide; 331. screw barrel; 34. guide concave strip. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, an injection mold positioning device includes a support member 1, a lower mold 2 and an upper mold 3. The support member 1 includes a support platform 11, a support frame 12 is vertically fixed on the bottom surface of the support platform 11, and a fixing screw 121 is installed through a vertical thread on the support frame 12, and a slide frame 13 is vertically fixed on both sides of the support platform 11. The lower mold 2 is fixed on the top surface of the support platform 11, and two rotating plates 21 are symmetrically and vertically fixed on the symmetrical vertical end surfaces on both sides of the outer side of the lower mold 2, and the two rotating plates 21 are horizontally connected with a clamping wheel 22 in the vertical direction, and the bottom of the two rotating plates 21 is vertically fixed with a slide bar 23, the upper mold 3 is arranged above the lower mold 2, and slide racks 33 are horizontally fixed on both sides of the upper mold 3, and the slide racks 33 slide vertically. Installed in the sliding frame 13, the upper mold 3 is vertically fixed with a card frame 31 on both sides of the symmetrical vertical end faces, and the card frame 31 is vertically slidably inserted on the sliding bar 23, and the vertical end faces of the card frame 31 on both sides are vertically fixed with a card strip 32, and the card strip 32 is pressed against the card wheel 22. When the lower mold 2 and the upper mold 3 are closed during use, the upper mold 3 slides vertically downward on the sliding frames 13 on both sides of the support platform 11 of the support member 1, and the card frames 31 on both sides of the upper mold 3 are vertically slid and inserted into the sleeve frames 25 on both sides of the lower mold 2, and then the card strips 32 on both sides of the card frame 31 are vertically slid and connected in the card wheel 22 of the rotating plate 21, thereby guiding and limiting the closing of the lower mold 2 and the upper mold 3 in the vertical direction, thereby improving the accuracy of the closing of the lower mold 2 and the upper mold 3.

[0024] See also Figure 3 A screw rod 14 is vertically rotatably connected in the slide frame 13, and a motor 15 is vertically fixed on the top surface of the slide frame 13, and the output end of the motor 15 is fixed on the rotating shaft of the screw rod 14, and a screw barrel 331 is vertically fixed in the slide 33 on one side of the upper mold 3, and the screw barrel 331 is threadedly connected with the screw rod 14. During use, the motor 15 is started to drive the screw rod 14 to rotate on the slide frame 13, and the thread cooperates with the screw barrel 331 on the slide 33 on one side of the upper mold 3 to vertically guide the lower mold 2 and the upper mold 3 to close and open the mold.

[0025] See also Figure 4 Guide convex strips 24 are horizontally fixed on both sides of the top surface of the lower mold 2, and guide concave strips 34 are horizontally fixed on both sides of the top surface of the upper mold 3, and the guide concave strips 34 are limitedly plugged with the guide convex strips 24. When the lower mold 2 and the upper mold 3 are closed in use, the guide concave strips 34 are limitedly plugged with the guide convex strips 24, which further improves the accuracy of the closing of the lower mold 2 and the upper mold 3.

[0026] See also Figure 5A sleeve frame 25 is horizontally fixed on the bottom surface of the lower mold 2, and both sides of the sleeve frame 25 are horizontally threaded with mounting screws 251, and screw grooves 111 are horizontally opened on both sides of the support platform 11, and the screw grooves 111 are threadedly assembled with the mounting screws 251. During use, the sleeve frame 25 on the lower mold 2 is sleeved on the support platform 11, and the assembled sleeve frame 25 is fixed on the support platform 11 by the mounting screws 251, thereby completing the fixed stability of the lower mold 2 and the support platform 11.

[0027] Working principle: When the lower mold 2 and the upper mold 3 are closed during use, the upper mold 3 slides vertically downward on the sliding frames 13 on both sides of the support platform 11 of the support member 1, and the clamping frames 31 on both sides of the upper mold 3 slide vertically and are inserted into the sleeve frames 25 on both sides of the lower mold 2, and then the clamping strips 32 on both sides of the clamping frame 31 slide vertically and are clamped in the clamping wheels 22 of the rotating plate 21, thereby guiding and limiting the closing of the lower mold 2 and the upper mold 3 in the vertical direction.

[0028] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An injection mold positioning device, characterized in that: The invention comprises a support member (1), a lower mold (2) and an upper mold (3), wherein the support member (1) comprises a support platform (11), a support frame (12) is vertically fixed on the bottom surface of the support platform (11), and a fixing screw (121) is installed through a vertical thread on the support frame (12), and sliding frames (13) are vertically fixed on both sides of the support platform (11), and the lower mold (2) is fixed on the top surface of the support platform (11), and two rotating plates (21) are symmetrically vertically fixed on the symmetrical vertical end surfaces on both sides of the outer side of the lower mold (2), and the two rotating plates (21) are connected with a horizontally rotating screw in the vertical direction. The upper mold (3) is arranged above the lower mold (2), and slides (33) are horizontally fixed on both sides of the upper mold (3), and the slides (33) are vertically slidably installed in the slide frame (13), and the symmetrical vertical end faces on both sides of the upper mold (3) are vertically fixed with card frames (31), and the card frames (31) are vertically slidably plugged into the slides (23), and the vertical end faces on both sides of the card frame (31) are vertically fixed with card strips (32), and the card strips (32) are pressed against the card wheel (22).

2. The injection mold positioning device according to claim 1, characterized in that: A screw rod (14) is vertically rotatably connected in the sliding frame (13), and a motor (15) is vertically fixed on the top surface of the sliding frame (13), and the output end of the motor (15) is fixed on the rotating shaft of the screw rod (14).

3. The injection mold positioning device according to claim 2, characterized in that: A screw barrel (331) is vertically fixed in the slide (33) on one side of the upper mold (3), and the screw barrel (331) is threadedly connected to the screw rod (14).

4. The injection mold positioning device according to claim 1, characterized in that: Guide convex strips (24) are horizontally fixed on both sides of the top surface of the lower mold (2).

5. The injection mold positioning device according to claim 4, characterized in that: Both sides of the top surface of the upper mold (3) are horizontally fixed with guide concave strips (34), and the guide concave strips (34) are limitedly plugged with the guide convex strips (24).

6. The injection mold positioning device according to claim 1, characterized in that: A sleeve frame (25) is horizontally fixed on the bottom surface of the lower mold (2), and mounting screws (251) are installed through horizontal threads on both sides of the sleeve frame (25).

7. The injection mold positioning device according to claim 6, characterized in that: Screw grooves (111) are horizontally provided on both sides of the support platform (11), and the screw grooves (111) are threadedly assembled with mounting screws (251).

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