Double-color injection molding mechanism capable of preheating mold

Abstract

The utility model relates to the field of injection molding equipment, and discloses a double-color injection molding mechanism capable of preheating a mold, which comprises a rack, a preheating cylinder is arranged at the bottom of the rack, a mold body is arranged in the preheating cylinder, a bottom plate is arranged in the mold body in a sliding manner, a spiral heating pipe is embedded in the preheating cylinder, and the spiral heating pipe is connected with the bottom plate in a sliding manner. The number of spiral turns of the spiral heating pipe is gradually increased from top to bottom, the inner side of the annular sleeve is rotationally connected with the lower portion of a face gear, and a stock bin is arranged on the inner side of the face gear. According to the utility model, different connecting pipes are communicated with the joints, so that injection molding raw materials with different colors in different bins can enter the injection molding opening, injection molding of double-color or even multi-color raw materials is realized, and the position adjustment of the preheating cylinder and the mold body enables the mold body to have various preheating temperatures, so that the injection molding mold is flexibly suitable for various materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding equipment field especially relates to a two -color injection molding mechanism of preheating mould. BACKGROUND

[0002] Injection molding machine can utilize the device of mould injection processing workpiece of thermosetting or thermoplastic plastic particle.

[0003] The existing injection molding machine is actually used, and different colors of commodities need to be produced flexibly according to actual conditions, but the hopper quantity of the injection molding machine is limited, in order to increase the color richness of injection molding commodities, therefore the use amount of injection molding equipment is increased, the cost is high, and simultaneously the existing injection molding machine mostly has the mechanism of multiple mould preheating, but the preheating temperature required by different raw materials is different when the injection molding machine produces different commodities, and the existing injection molding machine cannot meet the demand. UTILITY MODEL CONTENTS

[0004] The utility model provides a two -color injection molding mechanism of preheating mould to solve the shortcoming in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a two -color injection molding mechanism of preheating mould, including the frame, the bottom of frame is provided with preheating cylinder, the preheating cylinder is provided with mould body, the mould body is provided with the bottom plate that slides, the preheating cylinder is inlaid with spiral heating pipe, the spiral number of spiral heating pipe is more and more dense from top to bottom, the middle part of frame is provided with the middle plate, the upper portion of frame is provided with the top plate that slides, the lower portion of middle plate and in the just above mould body is provided with injection port, the top of injection port both sides is provided with connector, the connector all runs through middle plate and extends upwards, the middle part of top plate is provided with annular sleeve, the inside of annular sleeve is rotatably connected with the lower part of plane gear, the inside of plane gear is provided with stock bin, the stock bin is provided with multiple storage bins evenly and the bottom of each storage bin is provided with connecting pipe, wherein two connecting pipes all are connected with connector, and the bottom of connecting pipe is provided with electromagnetic valve.

[0006] Further description of the above technical scheme:

[0007] The bottom of frame is fixedly connected with air cylinder, and the driving end of air cylinder penetrates the frame and is fixedly connected to the bottom of bottom plate.

[0008] Further description of the above technical scheme:

[0009] The outer side of the preheating cylinder is provided with a plurality of temperature sensors from top to bottom, the temperature sensors are all arranged on one side of the spiral heating pipe, and the temperature sensors are all connected with an inverter and a single-chip microcomputer.

[0010] As a further description of the above technical solution:

[0011] The intermediate plate is provided with a spiral blade in the middle of the injection molding port, a second motor is fixedly connected to the top middle of the intermediate plate, and the driving end of the second motor penetrates the intermediate plate downward and is connected with the middle shaft of the upper end of the spiral blade.

[0012] As a further description of the above technical solution:

[0013] The upper side of the plane gear is meshedly connected with a driving gear, the driving gear is fixedly connected to the driving end of the first motor, the bottom end of the first motor is fixedly connected with a mounting seat, and the mounting seat is fixedly connected to the top of the top plate.

[0014] As a further description of the above technical solution:

[0015] The bottom of the top plate is fixedly connected with an electric telescopic rod on both sides, and the driving end of the electric telescopic rod is fixedly connected to the upper part of the two sides of the intermediate plate.

[0016] The utility model has the advantages of the following beneficial effects:

[0017] 1、The first motor drives the plane gear through the driving gear, so that the plane gear can rotate under the bearing of the top plate, then the electric telescopic rod can make the top plate descend, and different connecting pipes and joints are connected, so that different colors of injection molding raw materials in different bins can enter the injection molding port, the injection molding equipment can be used for injection molding of double-color or even multi-color raw materials, the use amount of the injection molding equipment does not need to be increased, the color processing quantity of commodities can be improved, and the cost is low.

[0018] 2、The cylinder makes the mold body in the preheating cylinder have different heights through the bottom plate, so that the mold body in the preheating cylinder can have different preheating temperatures, so that the injection molding mechanism can meet the requirements of different preheating temperatures of different commodity raw materials, and the use flexibility is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 A three-dimensional view of the double-color injection molding mechanism with a preheating mold is provided for the utility model;

[0020] Fig. 2 A front view of the double-color injection molding mechanism with a preheating mold is provided for the utility model;

[0021] Fig. 3 A partial sectional view of a double-color injection molding mechanism with preheating mold according to the present application is provided.

[0022] Legend:

[0023] 1, rack; 2, preheating cylinder; 3, bottom plate; 4, single-chip microcomputer; 5, intermediate plate; 6, electric telescopic rod; 7, joint; 8, top plate; 9, stock bin; 10, driving gear; 11, plane gear; 12, first motor; 13, mounting seat; 14, air cylinder; 15, mold body; 16, spiral heating pipe; 17, temperature sensor; 18, injection port; 19, spiral blade; 20, second motor; 21, annular sleeve; 22, connecting pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Reference Figs. 1-3 An embodiment provided by the present application is a double-color injection molding mechanism with preheating mold, which comprises a rack 1, the bottom of the rack 1 is provided with a preheating cylinder 2, the preheating cylinder 2 is provided with a mold body 15, the mold body 15 is provided with a bottom plate 3 which is slidably arranged in the mold body 15, the preheating cylinder 2 is embedded with a spiral heating pipe 16, the number of spiral turns of the spiral heating pipe 16 is more and more dense from top to bottom, the middle of the rack 1 is provided with an intermediate plate 5, the upper part of the rack 1 is provided with a top plate 8 which is slidably arranged, the lower part of the intermediate plate 5 is provided with an injection port 18 which is directly above the mold body 15, the top of the injection port 18 is provided with a joint 7 on both sides, the joint 7 penetrates the intermediate plate 5 and extends upward, the middle of the top plate 8 is provided with an annular sleeve 21, the inner side of the annular sleeve 21 is rotatably connected with the lower part of a plane gear 11, the inner side of the plane gear 11 is provided with a stock bin 9, the stock bin 9 is provided with multiple colors of materials, realizing multi-color injection molding, multiple storage bins are uniformly arranged in the stock bin 9, and the bottom of each storage bin is provided with a connecting pipe 22, two connecting pipes 22 are connected with the joint 7, the bottom of the connecting pipe 22 is provided with an electromagnetic valve, which can ensure that the connecting pipe 22 is connected with the joint 7 to discharge materials, and is not connected to discharge materials.

[0026] The bottom of the rack 1 is fixedly connected with an air cylinder 14, the driving end of the air cylinder 14 penetrates the rack 1 and is fixedly connected to the bottom of the bottom plate 3, and the air cylinder 14 moves the mold body 15 to the height of the preheating cylinder 2 with different temperatures through the bottom plate 3.

[0027] A plurality of temperature sensors 17 are arranged on the outer side of the preheating cylinder 2 from top to bottom, and each of the temperature sensors 17 is arranged on one side of the spiral heating pipe 16. Each of the temperature sensors 17 is connected to the inverter and the single-chip microcomputer 4. The single-chip microcomputer 4 is arranged on one side of the inner bottom of the rack 1. The single-chip microcomputer 4 displays the temperature of the temperature sensors 17 at different positions, can read the temperature in the spiral heating pipe 16, realizes the control of the temperature at different heights in the preheating cylinder 2, and lifts the mold body 15 to different heights according to the actual situation.

[0028] The middle part of the injection port 18 is provided with a spiral blade 19. The top middle part of the middle plate 5 is fixedly connected with a second motor 20. The driving end of the second motor 20 penetrates the middle plate 5 downward and is connected with the middle shaft of the upper end of the spiral blade 19. The second motor 20 extrudes the raw materials in the injection port 18 into the mold body 15 through the spiral blade 19.

[0029] The upper side of the planar gear 11 is meshingly connected with a driving gear 10. The driving gear 10 is fixedly connected with the driving end of the first motor 12. The bottom end of the first motor 12 is fixedly connected with a mounting seat 13. The mounting seat 13 is fixedly connected with the top of the top plate 8. The first motor 12 drives the planar gear 11 to rotate on the top plate 8 around the annular sleeve 21 through the driving gear 10, so as to realize the position conversion of the material bin 9.

[0030] The bottom of the top plate 8 is fixedly connected with electric telescopic rods 6 on both sides. The driving ends of the electric telescopic rods 6 are fixedly connected with the upper parts of the two sides of the middle plate 5. The electric telescopic rods 6 can lift and lower the top plate 8, so as to realize the material replacement of the material bin 9 and the color replacement.

[0031] Working principle: when it is necessary to adjust the color of the raw material supply, the electric telescopic rod 6 lifts the top plate 8 to separate the connector 7 from the connecting pipe 22. At this time, the first motor 12 drives the planar gear 11 through the driving gear 10, so that the planar gear 11 can rotate the material bin 9 under the bearing of the top plate 8. After the connecting pipe 22 of the corresponding color material bin 9 moves to the position directly above the connector 7, the electric telescopic rod 6 can lower the top plate 8 to connect the different connecting pipes 22 with the connector 7. In this way, the injection raw materials of different colors in different material bins 9 can enter the injection port 18, so as to realize that the injection equipment can inject raw materials of double colors or even more colors. The use amount of the injection equipment does not need to be increased to improve the color processing quantity of the goods, and the cost is low. When it is necessary to preheat the mold body 15 to different temperatures, the cylinder 14 makes the mold body 15 in the preheating cylinder 2 have different heights through the bottom plate 3. In this way, the mold body 15 in the preheating cylinder 2 can have different preheating temperatures. In this way, the injection mechanism can meet the requirements of different preheating temperatures of different raw materials of goods, and the use flexibility is greatly improved.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A two-color injection molding mechanism for preheatable molds, comprising a frame (1), characterized in that: A preheating cylinder (2) is provided at the bottom of the frame (1). A mold body (15) is provided inside the preheating cylinder (2). A bottom plate (3) is slidably provided inside the mold body (15). A spiral heating tube (16) is embedded inside the preheating cylinder (2). The spiral number of turns of the spiral heating tube (16) increases from top to bottom. A middle plate (5) is provided in the middle of the frame (1). A top plate (8) is slidably provided on the upper part of the frame (1). An injection port (18) is provided at the lower part of the middle plate (5) and directly above the mold body (15). Both sides of the top plate (8) are provided with joints (7), which penetrate the middle plate (5) and extend upward. The middle part of the top plate (8) is provided with an annular sleeve (21). The lower part of the planar gear (11) is rotatably connected to the inner side of the annular sleeve (21). The inner side of the planar gear (11) is provided with a hopper (9). Multiple storage compartments are evenly arranged in the hopper (9), and a connecting pipe (22) is provided at the bottom of each storage compartment. Two of the connecting pipes (22) are connected to the joints (7). A solenoid valve is provided at the bottom of each connecting pipe (22).

2. The two-color injection molding mechanism for a preheatable mold according to claim 1, characterized in that: A cylinder (14) is fixedly connected to the bottom of the frame (1), and the driving end of the cylinder (14) passes through the frame (1) and is fixedly connected to the bottom of the base plate (3).

3. The two-color injection molding mechanism for a preheatable mold according to claim 1, characterized in that: Multiple temperature sensors (17) are arranged from top to bottom on the outer side of the preheating cylinder (2). The temperature sensors (17) are all located on one side of the spiral heating tube (16). The temperature sensors (17) are all connected to the microcontroller (4) through the inverter. The microcontroller (4) is located on one side of the inner bottom of the frame (1).

4. The two-color injection molding mechanism for a preheatable mold according to claim 1, characterized in that: A spiral blade (19) is provided in the middle of the injection port (18). A second motor (20) is fixedly connected to the top center of the intermediate plate (5). The driving end of the second motor (20) passes through the intermediate plate (5) downward and is connected to the upper intermediate shaft of the spiral blade (19).

5. A two-color injection molding mechanism for a preheatable mold according to claim 1, characterized in that: The upper side of the planar gear (11) is meshed with a drive gear (10), the drive gear (10) is fixedly connected to the drive end of the first motor (12), the bottom end of the first motor (12) is fixedly connected to a mounting base (13), and the mounting base (13) is fixedly connected to the top of the top plate (8).

6. The two-color injection molding mechanism for a preheatable mold according to claim 1, characterized in that: Electric telescopic rods (6) are fixedly connected to both sides of the bottom of the top plate (8), and the driving ends of the electric telescopic rods (6) are fixedly connected to the upper parts of both sides of the middle plate (5).

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