Injection mold frame double-guide mechanism

Abstract

The utility model discloses a double-guide mechanism for a mould frame of an injection mould, which belongs to the technical field of injection moulds and comprises a bottom plate, support frames are fixedly connected to two sides of the top of the bottom plate, two sliding chutes are arranged on opposite sides of the support frames, an L-shaped support plate is fixedly connected to one side of the bottom plate, and the L-shaped support plate is fixedly connected to the other side of the bottom plate. A telescopic air cylinder is arranged at the top of the L-shaped supporting plate in a penetrating mode, the output end of the telescopic air cylinder is fixedly connected with a U-shaped plate through a flange, and penetrating openings are formed in the two sides of the U-shaped plate. The U-shaped plate and the supporting frame are arranged, guiding is achieved through rotation of the pulley on the U-shaped plate in the sliding groove of the supporting frame, loss caused by friction is greatly reduced, the guiding performance of the double-guiding mechanism is improved, the service life of the double-guiding mechanism is prolonged, the telescopic rod and the buffer spring are designed, impact force during die assembly can be effectively relieved, and the service life of the double-guiding mechanism is prolonged. And meanwhile, the positioning sleeve is designed on the lower portion, so that the upper die can be aligned with the lower die in the downward moving process, and the size precision of a product is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold technical field, concretely is a kind of injection mold mould frame double guide mechanism. BACKGROUND

[0002] Injection mold mould frame is the basic structure of injection mold, provides support and positioning for each component of the mold, wherein the mould frame usually includes fixed plate, guide element, support column, slider, ejector pin, etc., ensure that the mold is correctly installed and moved in injection molding machine, can directly affect the precision, stability and production efficiency of mold. Injection mold mould frame double guide mechanism refers to the precision guide system in mould frame for guiding the up-down movement of mold. This mechanism usually contains guide column and guide sleeve, which ensures the linear motion of the mold during mold opening and closing, reduces wear and error. The design of double guide mechanism helps to improve the positioning accuracy and repeatability of the mold, so as to ensure the quality of injection products, and is one of indispensable mechanisms.

[0003] The prior art also has the following shortcomings:

[0004] 1. The existing double guide mechanism usually uses guide column and guide sleeve, which has high precision requirement, is prone to nesting difficulty, has large friction area, and the guide element is prone to wear due to friction, which will gradually reduce the guiding performance and service life of the double guide mechanism.

[0005] 2. In addition, during the injection molding process, it is difficult to align when the mold is closed, and the impact force when the mold is closed may cause damage to the double guide structure, especially in rapid cycle production, if the structural strength is not enough, the deformation or fracture of the guide element may occur. INVENTION CONTENTS

[0006] In order to overcome the above defects, the utility model provides a kind of injection mold mould frame double guide mechanism, solve the problem that existing double guide mechanism is easy to wear, easy to damage and difficult to align when closing.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a kind of injection mold mould frame double guide mechanism, including bottom plate, the bottom plate top two sides are all fixedly connected with support frame, the support frame opposite side is equipped with two slide grooves, the bottom plate one side is fixedly connected with L-shaped support plate, the L-shaped support plate top is penetrated and is provided with telescopic cylinder, the output of telescopic cylinder is fixedly connected with U-shaped plate by flange, the U-shaped plate two sides are all equipped with penetration.

[0008] As a further scheme of the utility model: the bottom surface of the U-shaped plate is symmetrically provided with two telescopic rods, the telescopic rod is concentrically provided with buffer spring, the output end of two telescopic rods is fixedly connected with upper die, the two sides of the upper die are all slidably connected with the penetration of the corresponding side of U-shaped plate.

[0009] As a further scheme of the utility model: four pulleys are arranged on both sides of the U-shaped plate, and the two pulleys on one side are arranged in matched mode with one sliding groove on the support frame.

[0010] As a further scheme of the utility model: two spacers are fixedly connected to the bottom plate respectively, the spacer is attached to one side of the groove of the support frame, and a lower mold is fixedly connected to the two spacers.

[0011] As a further scheme of the utility model: a positioning sleeve is fixedly connected to each side of the lower mold, and an insertion plate is fixedly connected to each bottom end of the U-shaped plate, and the insertion plate is arranged in matched mode with the positioning sleeve on one side.

[0012] As a further scheme of the utility model: a hydraulic telescopic rod is arranged on the bottom plate, an output end of the hydraulic telescopic rod is fixedly connected with a top plate, a plurality of top rods are fixedly connected to the top plate, and the plurality of top rods are fixedly connected with the movable ejection structure in the lower mold.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The utility model sets the U-shaped plate and the support frame, realizes the guidance through the rotation of the pulley on the U-shaped plate in the sliding groove of the support frame, greatly reduces the loss caused by the friction, and improves the guiding performance and service life of the double-guiding mechanism.

[0015] 2. The utility model designs the telescopic rod and the buffer spring, can effectively relieve the impact force when the mold is closed, reduces the damage to the double-guiding structure, and designs the positioning sleeve below, can align the upper mold with the lower mold in the downward movement process, and guarantees the size precision of the product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of a double-guiding mechanism of an injection mold mold frame provided by the utility model;

[0017] Figure 2 It is Figure 1 A part of the enlarged view in the middle;

[0018] Figure 3 It is an internal structure schematic view of a double-guiding mechanism of an injection mold mold frame provided by the utility model.

[0019] In the drawing: 1 bottom plate, 2 support frame, 3 sliding groove, 4 L-shaped support plate, 5 telescopic cylinder, 6 U-shaped plate, 7 telescopic rod, 8 buffer spring, 9 upper mold, 10 pulley, 11 spacer, 12 lower mold, 13 positioning sleeve, 14 insertion plate, 15 hydraulic telescopic rod, 16 top plate, 17 top rod. DETAILED DESCRIPTION

[0020] The technical solutions of the patent are further described in detail in combination with specific embodiments.

[0021] As shown in Figures 1-3 The utility model provides a technical scheme:

[0022] The bottom plate 1, both sides of the top of the bottom plate 1 are fixedly connected with support frame 2, and two grooves 3 are formed on the opposite side of support frame 2; one side of the bottom plate 1 is fixedly connected with L-shaped support plate 4, and telescopic cylinder 5 is arranged through the top of L-shaped support plate 4; the output end of telescopic cylinder 5 is fixedly connected with U-shaped plate 6 through flange, and through holes are formed on both sides of U-shaped plate 6;

[0023] Specifically, the bottom plate 1, support frame 2 and L-shaped support plate 4 can support the internal structure, and the output end of telescopic cylinder 5 can drive U-shaped plate 6 to move up and down;

[0024] Two telescopic rods 7 are symmetrically arranged on the bottom surface of U-shaped plate 6, and buffer spring 8 is concentrically arranged on telescopic rod 7; the output end of two telescopic rods 7 is fixedly connected with upper die 9, and both sides of upper die 9 are slidably connected with the through hole on the corresponding side of U-shaped plate 6; four pulleys 10 are arranged on both sides of U-shaped plate 6, and the two pulleys 10 on the corresponding side are arranged in the groove 3 on the support frame; two spacers 11 are fixedly connected on the bottom plate 1, and the spacer 11 is attached to one side of the groove 3 of the support frame 2 on the corresponding side; lower die 12 is fixedly connected on the two spacers 11, and positioning sleeve 13 is fixedly connected on both sides of lower die 12; plug-in plate 14 is fixedly connected on both bottom ends of U-shaped plate 6, and plug-in plate 14 is arranged in positioning sleeve 13 on the corresponding side;

[0025] Specifically, when injection molding is carried out, the telescopic cylinder 5 can be controlled to move downward, and the L-shaped support plate 4 fixedly connected with the output end thereof can be driven to move downward; when the plug-in plate 14 is inserted into the positioning sleeve 13, the plug-in plate 14 will move downward along the inclined surface in the positioning sleeve 13, and finally will be attached to the inner wall at the bottom of the positioning sleeve 13, so that the upper die 9 and the lower die 12 are aligned; when the upper die 9 and the lower die 12 are closed, the upper die 9 no longer moves, and the through hole on the U-shaped plate 6 will continue to move downward along the groove 3 of the support frame 2 for a small distance; at this time, the telescopic rod 7 will retract, and the buffer spring 8 will be compressed at the same time, so as to reduce the impact force and improve the service life of the double-guide structure;

[0026] The hydraulic telescopic rod 15 is arranged on the bottom plate 1, the output end of the hydraulic telescopic rod 15 is fixedly connected with the top plate 16, a plurality of top rods 17 are fixedly connected on the top plate 16, and the plurality of top rods 17 are fixedly connected with the movable ejection structure in the lower die 12;

[0027] Specifically, when the mold is opened, the U-shaped plate 6 and the upper mold 9 are driven upward by the telescopic cylinder 5, and then the hydraulic telescopic rod 15 pushes the top plate 16, so that the top rod 17 on the top plate 16 and the movable ejection structure in the lower mold 12 are pushed upward and the injection-molded product is pushed out.

[0028] The working principle of the utility model is:

[0029] The bottom plate 1, the support frame 2 and the L-shaped support plate 4 can support the internal structure, and the output end of the telescopic cylinder 5 can drive the U-shaped plate 6 to move up and down.

[0030] When injection molding is performed, the telescopic cylinder 5 can be controlled to move downward, driving the L-shaped support plate 4 fixedly connected to the output end to move downward, and when the plug plate 14 is inserted into the positioning sleeve 13, the plug plate 14 will move downward along the inclined surface in the positioning sleeve 13, and finally adhere to the inner wall at the bottom of the positioning sleeve 13, so as to realize the alignment of the upper mold 9 and the lower mold 12, and when the upper mold 9 and the lower mold 12 are closed, the U-shaped plate 6 will continue to move downward by a small distance along the sliding groove 3 of the support frame 2, and at this time, the telescopic rod 7 will retract, and the buffer spring 8 will be compressed, so as to reduce the impact force and improve the service life of the double-guide structure.

[0031] When the mold is opened, the U-shaped plate 6 and the upper mold 9 are driven upward by the telescopic cylinder 5, and then the hydraulic telescopic rod 15 pushes the top plate 16, so that the top rod 17 on the top plate 16 and the movable ejection structure in the lower mold 12 are pushed upward and the injection-molded product is pushed out.

[0032] The above describes the preferred embodiments of the patent in detail, but the patent is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the patent.

Claims

1. A double guide mechanism for injection mold frames, comprising a base plate (1), characterized in that, The bottom plate (1) top both sides are fixedly connected with support frame (2), the support frame (2) opposite side is provided with two slide grooves (3), the bottom plate (1) one side is fixedly connected with L-shaped support plate (4), the L-shaped support plate (4) top is provided with telescopic pneumatic cylinder (5), the output of telescopic pneumatic cylinder (5) is fixedly connected with U-shaped plate (6) through flange, the both sides of U-shaped plate (6) are provided with through hole.

2. A dual guide mechanism for an injection mold frame as defined in claim 1, wherein: The bottom surface of the U-shaped plate (6) is symmetrically provided with two telescopic rods (7), the telescopic rod (7) is provided with buffer spring (8) concentrically, the output end of two telescopic rods (7) is fixedly connected with upper die (9), the both sides of upper die (9) are slidably connected with the through hole on the corresponding side of U-shaped plate (6).

3. A dual guide mechanism for an injection mold frame as defined in claim 2, wherein: The both sides of the U-shaped plate (6) are provided with four pulleys (10), and the two pulleys (10) on the corresponding side are matched with one slide groove (3) on the support frame.

4. A dual guide mechanism for an injection mold frame as defined in claim 3, wherein: The bottom plate (1) is respectively fixedly connected with two backing plates (11), the backing plate (11) is attached to one side of the slide groove (3) of the corresponding side support frame (2), and the two backing plates (11) are fixedly connected with the lower die (12).

5. A dual guide mechanism for an injection mold frame as defined in claim 4, wherein: The both sides of the lower die (12) are fixedly connected with the positioning sleeve (13), the both bottom ends of the U-shaped plate (6) are fixedly connected with the plug-in plate (14), and the plug-in plate (14) is matched with the positioning sleeve (13) on the corresponding side.

6. A dual guide mechanism for an injection mold frame as defined in claim 5, wherein: The bottom plate (1) is provided with hydraulic telescopic rod (15), the output end of the hydraulic telescopic rod (15) is fixedly connected with the top plate (16), the top plate (16) is fixedly connected with a plurality of top rods (17), and a plurality of top rods (17) are fixedly connected with the movable ejection structure in the lower die (12).

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