Injection mold locking mechanism

Abstract

The utility model discloses an injection mold locking mechanism. The injection mold locking mechanism comprises a mounting plate, a limiting column and a mold locking mechanism, the number of the mounting plates is two, limiting columns are fixedly connected to the four corners between the two mounting plates correspondingly, a left side fixed mold mounting plate is fixedly connected to the right side face of the mounting plate on the left side, and the outer arc faces of the four limiting columns are fixedly connected with the adjacent corners of one left side fixed mold mounting plate correspondingly. The mold locking mechanism comprises a pressing plate, a sliding groove, a two-way lead screw and right side connecting seats, the four corners of the pressing plate are slidably connected with the middles of the outer arc faces of the limiting columns, the sliding groove is formed in the left side face of the pressing plate, the two-way lead screw is rotationally connected into the sliding groove, and the right side connecting seats are in threaded connection with the two sides of the outer threaded face of the two-way lead screw; the injection mold locking mechanism has the advantages that the mold locking force can be automatically controlled according to molten materials, and accordingly the injection mold locking mechanism is good in compatibility.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection mold locking mechanism. Background Art

[0002] The plastic mold consists of two parts: the movable mold and the fixed mold. The movable mold is installed on the movable mold plate of the injection molding machine, and the fixed mold is installed on the fixed mold plate of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to take out the plastic product:

[0003] The existing injection mold is often locked by using a pressing cylinder on the injection molding machine that is matched with the injection mold. The mold is first closed, and then a second cylinder is used to provide the clamping force to complete the locking.

[0004] There are some problems. This kind of clamping force is often designed in a matching way. When the injection mold is replaced, the cylinder must also be replaced. For this reason, we propose an injection mold locking mechanism. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an injection mold locking mechanism, which can automatically control the clamping force according to the molten material and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold locking mechanism, comprising a mounting plate, a limiting column and a mold locking mechanism;

[0007] Mounting plates: There are two of them, and the four corners between the two mounting plates are fixedly connected with limiting columns respectively. The right side of the left mounting plate is fixedly connected with the left fixed mold mounting plate, and the outer arc surfaces of the four limiting columns are fixedly connected with the adjacent corners of a left fixed mold mounting plate;

[0008] Mold locking mechanism: It includes a clamping plate, a slide groove, a bidirectional screw and a right connecting seat. The four corners of the clamping plate are slidably connected to the middle part of the outer arc surface of the limiting column. A slide groove is opened on the left side of the clamping plate. The internal rotation of the slide groove is connected with a bidirectional screw. Both sides of the external thread surface of the bidirectional screw are threadedly connected with the right connecting seat. The two right connecting seats are both slidably connected to the inside of a slide groove. The clamping force can be controlled automatically according to the molten material, and the compatibility is good.

[0009] Furthermore, the mold locking mechanism also includes a connecting rod, a left connecting seat and a mold clamping plate. The connecting rods are rotatably connected to the inside of the two right connecting seats respectively. The left ends of the two connecting rods are rotatably connected to the inside of a left connecting seat through a rotating shaft. The left side of the left connecting seat is fixedly connected to the mold clamping plate to realize the function of locking transmission.

[0010] Furthermore, the mold locking mechanism also includes a right fixed mold mounting plate, which is fixedly connected to the left side of the clamping plate through a support frame. An avoidance groove is provided in the middle of the right fixed mold mounting plate, and the mold clamping plate corresponds to the left and right positions of the avoidance groove to realize the function of clamping the mold.

[0011] Furthermore, it also includes a single-chip microcomputer, which is located outside the mechanism, and the input end of the single-chip microcomputer is electrically connected to an external power supply to control the normal operation of the electrical appliance.

[0012] Furthermore, it also includes a driving motor, which is arranged in the middle of the upper surface of the clamping plate, the output shaft of the driving motor is fixedly connected to the upper end of the bidirectional screw rod, and the input end of the driving motor is electrically connected to the output end of the single-chip microcomputer to provide driving force for locking.

[0013] Furthermore, it also includes a guide slide cylinder, which is fixedly connected to the four corners of the left side of the clamping plate, the inner arc surfaces of the four guide slide cylinders are slidably connected to the outer arc surfaces of the corresponding limiting columns, and springs are fixedly connected between the left sides of the four guide slide cylinders, and the springs are movably mounted on the outer arc surfaces of the corresponding limiting columns to achieve the function of stable movement.

[0014] Furthermore, it also includes a telescopic cylinder, which is fixedly connected to the middle of the right side surface of the right mounting plate, the telescopic end of the telescopic cylinder is fixedly connected to the right side surface of the clamping plate, and the air inlet of the telescopic cylinder is connected to an external power supply to provide driving force for the mold to snap together.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the injection mold locking mechanism has the following advantages:

[0016] When the molten material is solidifying and shaping, a reaction force is generated. At this time, the single-chip microcomputer can be regulated according to the reaction force generated by the shaping of the molten material, and the driving motor can be operated. The output shaft of the driving motor rotates forward and reverse, thereby driving the bidirectional screw to rotate forward and reverse, thereby driving the two left connecting seats to move relatively away and relatively close in the slide groove, and then rotating in the left connecting seat and the right connecting seat through two connecting rods, thereby driving the mold clamping plate to adjust the left and right position until the right side of the injection mold on the left is clamped, and then the injection mold is clamped. The clamping force can be controlled automatically according to the molten material, and the compatibility is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the mold locking mechanism of the utility model.

[0019] In the figure: 1 mounting plate, 2 limiting column, 3 mold locking mechanism, 31 clamping plate, 32 slide groove, 33 bidirectional screw, 34 right connecting seat, 35 connecting rod, 36 left connecting seat, 37 mold clamping plate, 38 right fixed mold mounting plate, 4 driving machine, 5 left fixed mold mounting plate, 6 guide slide, 7 spring, 8 telescopic cylinder, 9 single chip microcomputer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2 , This embodiment provides a technical solution: an injection mold locking mechanism, including a mounting plate 1, a limiting column 2 and a mold locking mechanism 3;

[0022] Mounting plates 1: There are two of them, and the four corners between the two mounting plates 1 are fixedly connected to the limiting columns 2, and the right side of the left mounting plate 1 is fixedly connected to the left fixed mold mounting plate 5, and the outer arc surfaces of the four limiting columns 2 are fixedly connected to the adjacent corners of a left fixed mold mounting plate 5, and also include a single-chip microcomputer 9, which is located outside the mechanism, and the input end of the single-chip microcomputer 9 is electrically connected to the external power supply, and also include a guide slide 6, which is fixedly connected to the four corners of the left side of the pressing plate 31, and the inner arc surfaces of the four guide slides 6 are slidably connected to the outer arc surfaces of the limiting columns 2 corresponding to the position, and the left sides of the four guide slides 6 are fixedly connected with springs 7, and the springs 7 are movably sleeved with the outer arc surfaces of the limiting columns 2 corresponding to the position;

[0023] The mold locking mechanism 3 includes a clamping plate 31, a slide groove 32, a bidirectional screw rod 33 and a right connecting seat 34. The four corners of the clamping plate 31 are slidably connected to the middle of the outer arc surface of the limit column 2. The left side of the clamping plate 31 is provided with a slide groove 32. The inside of the slide groove 32 is rotatably connected with a bidirectional screw rod 33. Both sides of the outer thread surface of the bidirectional screw rod 33 are threadedly connected with the right connecting seat 34. The two right connecting seats 34 are slidably connected to the inside of a slide groove 32. The mold locking mechanism 3 also includes a connecting rod 35, a left connecting seat 36 and a mold clamping plate 37. The connecting rod 35 is rotatably connected to the inside of the two right connecting seats 34 respectively. The two connecting rods 3 5 is connected to the inner rotation of a left connecting seat 36 through a rotating shaft, and a mold pressing plate 37 is fixedly connected to the left side of the left connecting seat 36. The mold locking mechanism 3 also includes a right fixed mold mounting plate 38, and the right fixed mold mounting plate 38 is fixedly connected to the left side of the pressing plate 31 through a supporting frame. An avoidance groove is provided in the middle of the right fixed mold mounting plate 38, and the mold pressing plate 37 corresponds to the left and right positions of the avoidance groove. It also includes a driving machine 4, which is arranged in the middle of the upper surface of the pressing plate 31, and the output shaft of the driving machine 4 is fixedly connected to the upper end of the bidirectional screw rod 33. The input end of the driving machine 4 is electrically connected to the output end of the single-chip microcomputer 9. The telescopic cylinder 8 is fixedly connected to the middle of the right side surface of the mounting plate 1 on the right side, and the telescopic end of the telescopic cylinder 8 is fixedly connected to the right side surface of the clamping plate 31. The air inlet of the telescopic cylinder 8 is connected to an external power supply. The device is installed to the specified position through the threaded hole on the mounting plate 1. At this time, the injection mold is sequentially installed on the mounting plate 5 and the right fixed mold mounting plate 38. At this time, the mechanism can be used normally. When the injection molding operation is required, the external air pump telescopic cylinder 8 is controlled to operate, and the telescopic end of the telescopic cylinder 8 is extended to the specified position, thereby driving the clamping plate 31 to move to the left to the specified position, thereby driving the two injection molds to complete the sealing. At this time The molten material can be passed between the two injection molds. When the molten material is solidified and shaped, a reaction force is generated. At this time, the single-chip microcomputer 9 can be regulated according to the reaction force generated by the shaping of the molten material, and the driving machine 4 can be operated. The output shaft of the driving machine 4 rotates forward and reverse, thereby driving the bidirectional screw rod 33 to rotate forward and reverse, thereby driving the two left connecting seats 36 to move relatively away and relatively close in the slide groove 32, and then rotating in the left connecting seat 36 and the right connecting seat 34 through the two connecting rods 35, thereby driving the mold clamping plate 37 to adjust the left and right position until the right side of the injection mold on the left is clamped, thereby clamping the injection mold.

[0024] The working principle of an injection mold locking mechanism provided by the utility model is as follows: the device is installed to the specified position through the threaded hole on the mounting plate 1, and the injection mold is installed on the mounting plate 5 and the right fixed mold mounting plate 38 in sequence. At this time, the mechanism can be used normally. When injection molding is required, the external air pump telescopic cylinder 8 is controlled to operate, and the telescopic end of the telescopic cylinder 8 is extended to the specified position, thereby driving the pressing plate 31 to move to the left to the specified position, and then driving the two injection molds to complete the sealing. At this time, the molten material can be passed between the two injection molds. When the molten material When the material is solidified and shaped, a reaction force is generated. At this time, the single-chip microcomputer 9 can be regulated according to the reaction force generated by the shaping of the molten material, and the driving machine 4 can be operated. The output shaft of the driving machine 4 rotates forward and reverse, thereby driving the bidirectional screw 33 to rotate forward and reverse, thereby driving the two left connecting seats 36 to move relatively away and relatively close in the slide groove 32, and then rotating in the left connecting seat 36 and the right connecting seat 34 through the two connecting rods 35, thereby driving the mold clamping plate 37 to adjust the left and right positions until the right side of the injection mold on the left is clamped, thereby clamping the injection mold.

[0025] It is worth noting that the single chip microcomputer 9 disclosed in the above embodiment is specifically model S7-200, and the driving machine 4 and the telescopic cylinder 8 can be freely configured according to the actual application scenario. It is recommended to use GYB201D5-RG2-GYB201D5-RG2 servo motor for the driving machine 4, and it is recommended to use KCA1 series telescopic cylinder for the telescopic cylinder 8. The single chip microcomputer 9 controls the operation of the driving machine 4 using methods commonly used in the prior art.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An injection mold locking mechanism, characterized in that: It comprises a mounting plate (1), a limiting column (2) and a mold locking mechanism (3); Mounting plates (1): two of them, the four corners between the two mounting plates (1) are respectively fixedly connected to limiting columns (2), the right side surface of the left mounting plate (1) is fixedly connected to the left fixed mold mounting plate (5), and the outer arc surfaces of the four limiting columns (2) are fixedly connected to the adjacent corners of a left fixed mold mounting plate (5); The mold locking mechanism (3) comprises a clamping plate (31), a slide groove (32), a bidirectional screw rod (33) and a right side connecting seat (34). The four corners of the clamping plate (31) are slidably connected to the middle part of the outer arc surface of the limiting column (2). The left side of the clamping plate (31) is provided with a slide groove (32). The inside of the slide groove (32) is rotatably connected to the bidirectional screw rod (33). Both sides of the outer thread surface of the bidirectional screw rod (33) are threadedly connected to the right side connecting seat (34). The two right side connecting seats (34) are slidably connected to the inside of a slide groove (32).

2. The injection mold locking mechanism according to claim 1, characterized in that: The mold locking mechanism (3) further comprises a connecting rod (35), a left connecting seat (36) and a mold pressing plate (37), wherein the connecting rod (35) is rotatably connected to the inside of two right connecting seats (34), respectively, and the left ends of the two connecting rods (35) are rotatably connected to the inside of a left connecting seat (36) via a rotating shaft, and the left side of the left connecting seat (36) is fixedly connected to the mold pressing plate (37).

3. The injection mold locking mechanism according to claim 2, characterized in that: The mold locking mechanism (3) further comprises a right fixed mold mounting plate (38), the right fixed mold mounting plate (38) being fixedly connected to the left side surface of the pressing plate (31) via a support frame, an escape groove being provided in the middle of the right fixed mold mounting plate (38), and the mold pressing plate (37) and the escape groove corresponding to each other on the left and right sides.

4. The injection mold locking mechanism according to claim 1, characterized in that: It also includes a single-chip microcomputer (9), which is located outside the mechanism, and an input end of the single-chip microcomputer (9) is electrically connected to an external power supply.

5. The injection mold locking mechanism according to claim 4, characterized in that: It also includes a driving machine (4), the driving machine (4) being arranged in the middle of the upper surface of the pressing plate (31), the output shaft of the driving machine (4) being fixedly connected to the upper end of the bidirectional screw rod (33), and the input end of the driving machine (4) being electrically connected to the output end of the single chip computer (9).

6. The injection mold locking mechanism according to claim 1, characterized in that: It also includes a guide slide (6), wherein the guide slide (6) is fixedly connected to the four corners of the left side of the pressing plate (31), the inner arc surfaces of the four guide slides (6) are slidably connected to the outer arc surfaces of the corresponding position limit posts (2), and the left sides of the four guide slides (6) are fixedly connected with springs (7), and the springs (7) are movably sleeved on the outer arc surfaces of the corresponding position limit posts (2).

7. The injection mold locking mechanism according to claim 1, characterized in that: It also includes a telescopic cylinder (8), which is fixedly connected to the middle of the right side surface of the right mounting plate (1), the telescopic end of the telescopic cylinder (8) is fixedly connected to the right side surface of the pressing plate (31), and the air inlet of the telescopic cylinder (8) is connected to an external power supply.

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