A locking device for a two-color mold

Abstract

The utility model provides a locking device for a two-color mold, belonging to the technical field of mold locking. The locking device of the two-color mold comprises a lower mold, an upper mold matched with the lower mold is arranged on the upper part of the lower mold, and two locking mechanisms, the locking mechanism comprises a lower buckle plate fixedly installed on the side wall of the lower mold, and an upper buckle plate fixedly installed on the side wall of the upper mold, the lower buckle plate and the upper buckle plate correspond in position; a connecting seat is fixedly installed on the upper part of the lower buckle plate, a clamping seat is fixedly installed at the corresponding position of the upper buckle plate and the connecting seat, and an arc groove is arranged on the side of the clamping seat away from the connecting seat; a locking pressure rod is rotatably installed on the connecting seat, and two adjusting rods are symmetrically and slidably connected to the locking pressure rod, and the ends of the two adjusting rods extending upward to one end of the upper buckle plate are fixedly connected with a locking rod; the locking rod is located in the clamping seat and abuts against the arc groove; the technical problem that the upper and lower molds cannot be closely fitted or displacement occurs during injection molding and cooling, thereby affecting the injection molding quality of the injection molded parts is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold locking, and in particular relates to a locking device for a double-color mold. Background Art

[0002] A two-color mold is a mold that uses two plastic materials to be molded on the same injection molding machine. The mold is molded twice, but the product is only ejected once. When in use, the raw materials are injected into the cavity formed by the upper mold and the lower mold, and the finished product is obtained after the raw materials are cooled. The current injection mold needs to wait for a certain amount of time to cool and set after the plastic melt is injected, and the injection molding easily generates tension in the mold.

[0003] The existing two-color mold lacks a locking mechanism after the upper and lower molds are closed, which results in the upper and lower molds not being able to fit tightly or being displaced during injection molding and cooling, thereby affecting the injection molding quality of the injection molded parts. Utility Model Content

[0004] In view of this, the utility model provides a locking device for a two-color mold, which is used to solve the technical problem that the upper and lower molds cannot fit tightly or are displaced during injection molding and cooling, thereby affecting the injection molding quality of the injection molded parts.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a locking device for a two-color mold, which comprises a lower mold, an upper mold matching the lower mold is arranged on the upper part of the lower mold, and two locking mechanisms are provided, wherein the locking mechanism comprises a lower buckle plate fixedly mounted on the side wall of the lower mold, and an upper buckle plate fixedly mounted on the side wall of the upper mold, and the lower buckle plate corresponds to the upper buckle plate in position;

[0007] A connecting seat is fixedly installed on the upper part of the lower buckle plate, and a clamping seat is fixedly installed at a position of the upper buckle plate corresponding to the connecting seat, and a circular arc groove is provided on a side of the clamping seat away from the connecting seat;

[0008] A locking rod is rotatably installed on the connecting seat, and two adjusting rods are symmetrically slidably connected to the locking rod. The two adjusting rods extend upward to the upper buckle plate, and the ends are fixedly connected with a locking rod. The locking rod is located in the socket and abuts against the arc groove.

[0009] On the basis of the above technical solution, the locking device of a two-color mold of the utility model can also be improved as follows:

[0010] Furthermore, a pin is rotatably mounted on one side of the locking rod away from the connecting seat, and the pin has two adjustment holes symmetrically arranged with respect to the locking rod, and the adjustment rods are slidably connected in the two adjustment holes respectively.

[0011] Furthermore, a thread is formed on the lower portion of the adjusting rod, and an upper nut is threadedly connected to the adjusting rod located above the pin shaft, and a lower nut is threadedly connected to the adjusting rod located below the pin shaft.

[0012] Furthermore, two sliding sleeves are symmetrically sleeved on the outer circumference of the pin shaft, and the upper nut and the lower nut are both in contact with the sliding sleeves.

[0013] Furthermore, the sliding sleeve and the adjusting hole are both provided with sliding holes at corresponding positions, the sliding hole and the adjusting hole have the same diameter, and the adjusting rod is slidably connected to the sliding hole.

[0014] Furthermore, the locking rod has a handle extending downward fixedly mounted on the top of one end of the pin shaft.

[0015] Compared with the prior art, the locking device of a two-color mold provided by the utility model has the following beneficial effects:

[0016] By setting one end of the locking rod to be rotatably connected to the connecting seat, the other end of the locking rod is rotatably connected to a pin shaft, so that the pin shaft can move smoothly outward and upward, thereby causing the locking rod to move up and disengage from the card seat, thereby canceling the locking; at the same time, the pin shaft can also move smoothly inward and downward, thereby causing the locking rod to move down and abut against the card seat, thereby generating locking.

[0017] By providing an upper nut and a lower nut threadedly connected on the adjusting rod, the positions of the upper nut and the lower nut on the adjusting rod can be adjusted. Firstly, the distance between the upper buckle plate and the lower buckle plate can be adjusted, and secondly, the tightness of the mutual engagement between the locking rod and the socket can be adjusted, thereby expanding the use range of the locking mechanism. The locking mechanism has a simple structure and a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a front view of the overall structure of a locking device for a two-color mold;

[0020] Figure 2 A side view of a locking mechanism of a locking device for a two-color mold;

[0021] Figure 3 It is an axonometric view of a locking mechanism of a locking device of a two-color mold;

[0022] Figure 4 A schematic diagram of the disassembly of the components on the lower buckle plate of a locking device of a two-color mold;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Lower die; 2. Upper die; 3. Lower buckle plate; 30. Handle; 31. Connecting seat; 32. Locking rod; 33. Pin; 34. Adjustment hole; 35. Adjustment rod; 36. Upper nut; 37. Lower nut; 4. Upper buckle plate; 41. Locking rod; 42. Clamping seat; 5. Sliding sleeve; 51. External adjustment hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Example 1

[0030] like Figure 1-4 As shown, the utility model provides a locking device for a two-color mold, which has a lower mold 1, and an upper mold 2 matching the lower mold 1 is provided on the upper part of the lower mold 1, wherein two locking mechanisms are also provided, and the locking mechanism includes a lower buckle plate 3 fixedly installed on the side wall of the lower mold 1, and an upper buckle plate 4 fixedly installed on the side wall of the upper mold 2, and the lower buckle plate 3 corresponds to the upper buckle plate 4 in position;

[0031] A connecting seat 31 is fixedly installed on the upper part of the lower buckle plate 3, and a clamping seat 42 is fixedly installed at a position corresponding to the connecting seat 31 of the upper buckle plate 4. A circular arc groove is provided on the side of the clamping seat 42 away from the connecting seat 31;

[0032] A locking rod 32 is rotatably mounted on the connecting seat 31, and two adjusting rods 35 are symmetrically slidably connected to the locking rod 32. The two adjusting rods 35 extend upward to the upper buckle plate 4, and the ends are fixedly connected to a locking rod 41. The locking rod 41 is located in the socket 42 and abuts against the arc groove.

[0033] Optionally, in the above technical solution, a pin shaft 33 is rotatably installed on one side of the locking rod 32 away from the connecting seat 31 , and the pin shaft 33 has two adjustment holes symmetrically opened about the locking rod 32 , and an adjustment rod 35 is slidably connected in the two adjustment holes 34 .

[0034] Optionally, in the above technical solution, the lower part of the adjusting rod 35 is threaded, the adjusting rod 35 located above the pin 33 is threadedly connected with an upper nut 36, and the adjusting rod 35 located below the pin 33 is threadedly connected with a lower nut 37.

[0035] Optionally, in the above technical solution, two sliding sleeves 5 are symmetrically sleeved on the outer circumference of the pin shaft 33 , and the upper nut 36 and the lower nut 37 are both in contact with the sliding sleeves 5 .

[0036] Optionally, in the above technical solution, a sliding hole is provided through the sliding sleeve 5 and the adjusting hole 34 at corresponding positions, the sliding hole and the adjusting hole 34 have the same diameter, and the adjusting rod 35 is slidably connected to the sliding hole.

[0037] Optionally, in the above technical solution, the locking rod 32 has a handle 30 extending downwardly fixedly mounted on the top of one end of the pin shaft 33 .

[0038] The ends of the sliding sleeves 5 that are close to each other are both in contact with the outer wall of the locking rod 32 , and the sliding sleeves 5 are rotatably connected to the pin shaft 33 .

[0039] Working principle:

[0040] After the lower mold 1 and the upper mold 2 are closed, the handle 30 is moved outward and upward, so that the locking rod 41 moves toward the clamping seat 42, and the locking rod 41 is buckled into the arc groove of the clamping seat 42;

[0041] After buckling, pull the handle 30 inward and downward until the end of the locking rod 32 and the connecting seat 31 are rotatably connected, and the end of the locking rod 32 and the pin 33 are rotatably connected are located in the same plane and vertically (such as Figure 1 As shown in the figure), the locking rod 41 abuts against the card seat 42 to complete the locking operation;

[0042] When the locking is canceled: the handle 30 is pulled to move outward and upward, driving the lower end of the pin 33 and the adjusting rod 35 to move outward and upward until the locking rod 41 is separated from the arc groove of the clamping seat 42.

[0043] 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. A locking device for a two-color mold, comprising a lower mold (1), wherein an upper mold (2) matching the lower mold (1) is disposed on the upper portion of the lower mold (1), wherein: It also has two locking mechanisms, the locking mechanisms comprising a lower buckle plate (3) fixedly mounted on the side wall of the lower die (1), and an upper buckle plate (4) fixedly mounted on the side wall of the upper die (2), the lower buckle plate (3) and the upper buckle plate (4) corresponding in position; A connecting seat (31) is fixedly mounted on the upper part of the lower buckle plate (3), a clamping seat (42) is fixedly mounted on a position corresponding to the connecting seat (31) of the upper buckle plate (4), and a circular arc groove is formed on a side of the clamping seat (42) away from the connecting seat (31); A locking rod (32) is rotatably mounted on the connecting seat (31), and two adjusting rods (35) are symmetrically slidably connected to the locking rod (32). The two adjusting rods (35) extend upward to the upper buckle plate (4), and the ends of the two adjusting rods (35) are fixedly connected to a locking rod (41). The locking rod (41) is located in the clamping seat (42) and abuts against the circular arc groove.

2. The locking device for a two-color mold according to claim 1, characterized in that: A pin shaft (33) is rotatably mounted on one side of the locking rod (32) away from the connecting seat (31), and the pin shaft (33) is symmetrically provided with two adjustment holes (34) about the locking rod (32), and the adjustment rods (35) are slidably connected in the two adjustment holes (34), respectively.

3. The locking device of a two-color mold according to claim 2, characterized in that: The lower part of the adjusting rod (35) is provided with a thread, and the adjusting rod (35) located above the pin shaft (33) is threadedly connected with an upper nut (36), and the adjusting rod (35) located below the pin shaft (33) is threadedly connected with a lower nut (37).

4. The locking device for a two-color mold according to claim 3, characterized in that: Two sliding sleeves (5) are symmetrically sleeved on the outer circumference of the pin shaft (33), and both the upper nut (36) and the lower nut (37) are in contact with the sliding sleeves (5).

5. The locking device for a two-color mold according to claim 4, characterized in that: The sliding sleeve (5) and the adjusting hole (34) are both provided with sliding holes at corresponding positions, the sliding hole and the adjusting hole (34) have the same diameter, and the adjusting rod (35) is slidably connected to the sliding hole.

6. The locking device for a two-color mold according to claim 5, characterized in that: The locking rod (32) has a handle (30) extending downwards fixedly mounted on the top of one end of the pin shaft (33).

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