One-to-three accurate and stable three-color mold base

Abstract

The utility model discloses a one-to-three accurate and stable three-color mould base, which relates to the technical field of mould bases and comprises a three-color mould base body, a positioning seat, a first driving mechanism and a second driving mechanism, the three-color mold frame body comprises a top cover, a base and mold frames, the top cover is arranged at the tops of the mold frames, the base is arranged at the bottoms of the mold frames, injection molding openings are formed in the top cover, cavities are formed in the mold frames, the injection molding openings are communicated with the cavities, and positioning grooves are formed in the positions, corresponding to the mold frames, of the base; the positioning seat is arranged at the bottom of the base, a positioning pin is arranged on the positioning seat, and when the positioning pin is inserted into the positioning groove, the injection molding openings of the injection molding nozzle are aligned; the first driving mechanism is used for driving the three-color mold frame body to rotate, and the second driving mechanism is used for driving the positioning pins to be inserted into the positioning grooves or retreat from the positioning grooves. According to the utility model, the three-color mold frame body is automatically and accurately positioned, so that the injection molding nozzle is aligned with the injection molding opening, the positioning time is saved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mold frames, in particular to a one-to-three precise and stable three-color mold frame. Background Art

[0002] The current three-color mold frame is prone to over- or under-rotation when it stops rotating, so that the injection nozzle and the injection port are not aligned, making it impossible for the injection nozzle to be inserted into the injection port. Manual fine-tuning is required to insert the injection nozzle into the injection port for injection molding, but this process wastes production time and increases production costs. Utility Model Content

[0003] The purpose of the utility model is to provide a one-to-three accurate and stable three-color mold frame, which overcomes the above-mentioned defects and can automatically position the three-color mold frame body.

[0004] To achieve the above objectives, the solution of the utility model is:

[0005] A one-to-three precise and stable three-color mold frame, comprising a three-color mold frame body, a positioning seat, a first driving mechanism and a second driving mechanism; the three-color mold frame body comprises a top cover, a base and a mold frame, the center of the base has a longitudinal center line, three mold frames are arranged, and the three mold frames are arranged on the base around the center line. The top cover is arranged on the top of the three mold frames, the base is arranged on the bottom of the three mold frames, and three injection ports are arranged on the top cover, and the injection ports are used for inserting injection nozzles. Each mold frame is provided with a cavity, and an injection port is connected to a cavity. The base is provided with a plurality of mold frames at positions corresponding to the three mold frames. Positioning slot; the positioning seat is arranged at the bottom of the base, and the base can rotate on the positioning seat with the center line of the base as the rotation center, so that the three-color mold frame body can rotate on the positioning seat, and a positioning pin is arranged on the positioning seat, and the positioning pin is used to insert or pull out one of the positioning slots. When the positioning pin is inserted into the positioning slot and inserted into place, the injection nozzle is aligned with one of the injection ports; the first driving mechanism is used to drive the three-color mold frame body to rotate, so as to rotate the three positioning slots to the positioning pins in sequence, and the second driving mechanism is used to drive the positioning pin to be inserted into the positioning slot to position the three-color mold frame body or withdraw the positioning slot.

[0006] Furthermore, micro switches are respectively provided in the three positioning grooves, and the micro switches are used to control the discharge of the injection molding nozzle, so that when the positioning pin is inserted into place, the micro switch is turned on to enable the injection molding nozzle to discharge material, or when the positioning pin is separated from the positioning groove, the micro switch is closed to stop the injection molding nozzle from discharging material.

[0007] Furthermore, the injection nozzle is connected to three discharge pipes of different colors, and each discharge pipe is provided with a valve, and each valve is respectively communicated and connected with a micro switch in a different positioning groove.

[0008] Further, the micro switch is telescopically arranged in the positioning groove, so as to be retracted into the base when the positioning pin is inserted, or to be extended out of the base when the positioning pin leaves the positioning groove.

[0009] Furthermore, the positioning groove is V-shaped, and the shape and size of the positioning pin fit the positioning groove.

[0010] After adopting the above scheme, the beneficial effects of the utility model are:

[0011] The utility model drives the three-color mold frame body to rotate through the first driving mechanism, so that the three positioning grooves rotate to the positioning pins in sequence, and drives the positioning pins to be inserted into the positioning grooves through the second driving mechanism, so as to drive the three-color mold frame body to be fine-tuned, and automatically and accurately position the three-color mold frame body, so that the injection nozzle and the injection port are aligned, thereby saving positioning time and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a top view of the positioning pin of the utility model without being inserted into the positioning groove;

[0014] Figure 3 yes Figure 2 A partial enlarged view of

[0015] Figure 4 It is a top view of the novel positioning pin inserted into the positioning groove.

[0016] Explanation of reference numerals: 10, three-color mold frame body; 11, top cover; 111, injection port; 12, base; 121, positioning groove; 122, micro switch; 13, mold frame; 20, positioning seat; 21, positioning pin; 30, second driving mechanism. DETAILED DESCRIPTION

[0017] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1 to 4As shown, the utility model provides a pair of three precise and stable three-color mold frames 13, including a three-color mold frame body 10, a positioning seat 20, a first driving mechanism and a second driving mechanism 30; the three-color mold frame body 10 includes a top cover 11, a base 12 and a mold frame 13, the center of the base 12 has a longitudinal center line, and the mold frame 13 is provided with three, and the three mold frames 13 are arranged on the base 12 around the center line. The top cover 11 is arranged on the top of the three mold frames 13, and the base 12 is arranged on the bottom of the three mold frames 13. Three injection ports 111 are arranged on the top cover 11, and the injection ports 111 are used for inserting injection nozzles. Each mold frame 13 is provided with a cavity, and one injection port 111 is connected to one cavity. The positions corresponding to the three mold frames 13 on the base 12 are all A positioning groove 121 is provided; the positioning seat 20 is arranged at the bottom of the base 12, and the base 12 can rotate on the positioning seat 20 with the center line of the base 12 as the rotation center, so that the three-color mold frame body 10 can rotate on the positioning seat 20, and a positioning pin 21 is provided on the positioning seat 20, and the positioning pin 21 is used to insert or pull out one of the positioning grooves 121. When the positioning pin 21 is inserted into the positioning groove 121 and inserted into place, the injection nozzle and one of the injection ports 111 are aligned; the first driving mechanism is used to drive the three-color mold frame body 10 to rotate, so as to rotate the three positioning grooves 121 to the positioning pin 21 in sequence, and the second driving mechanism 30 is used to drive the positioning pin 21 to insert into the positioning groove 121 to position the three-color mold frame body 10 or withdraw from the positioning groove 121;

[0019] Specifically, the utility model drives the three-color mold frame body 10 to rotate through the first driving mechanism, so that the three positioning grooves 121 rotate to the positioning pin 21 in sequence, and drives the positioning pin 21 to be inserted into the positioning groove 121 through the second driving mechanism 30, so as to drive the three-color mold frame body 10 to be fine-tuned, and automatically accurately position the three-color mold frame body 10, so that the injection nozzle and the injection port 111 are aligned, thereby saving positioning time and reducing production costs;

[0020] Specifically, the positioning groove 121 is V-shaped, and the shape and size of the positioning pin 21 match the positioning groove 121. The positioning groove 121 is V-shaped, so the shape of the positioning pin 21 is also V-shaped. When the V-shaped positioning pin 21 is inserted into the V-shaped positioning groove 121, it will abut against the side wall of the positioning groove 121 to fine-tune the three-color mold frame body 10 to accurately position it.

[0021] Furthermore, micro switches 122 are respectively provided in the three positioning grooves 121, and the micro switches 122 are used to control the discharge of the injection molding nozzle, so that when the positioning pin 21 is inserted into place, the micro switch 122 is turned on to enable the injection molding nozzle to discharge material, or when the positioning pin 21 is separated from the positioning groove 121, the micro switch 122 is closed to stop the injection molding nozzle from discharging material. Specifically, when the positioning pin 21 is inserted into place, the injection molding nozzle and the injection port 111 can be aligned. At this time, the switch is turned on to inject material into the cavity through the injection molding nozzle.

[0022] Furthermore, three discharge pipes of different colors are connected to the injection molding nozzle, and each discharge pipe is provided with a valve, each valve is respectively communicated with a micro switch 122 in a different positioning groove 121, therefore, by inserting the positioning pin 21 into a different positioning groove 121, the color of the material sprayed out of the injection molding nozzle can be controlled.

[0023] Furthermore, the micro switch 122 is telescopically arranged in the positioning slot 121 so as to be retracted into the base 12 when the positioning pin 21 is inserted, or to be extended out of the base 12 when the positioning pin 21 leaves the positioning slot 121, so as to prevent the micro switch 122 from affecting the positioning effect of the positioning pin 21.

[0024] Specifically, it also includes a controller, which is communicated with the first drive mechanism and the second drive mechanism 30 to control the rotation angle of the first drive mechanism, and control the second drive mechanism 30 to drive the positioning pin 21 to insert or pull out of the positioning groove 121. The controller is also communicated with the micro switch 122, and the signal is transmitted through the micro switch 122 so that the controller controls the opening and closing of the valve.

[0025] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] Meanwhile, the directions such as front, back, left, and right involved in this embodiment are only used as a reference for directions and do not represent directions in actual use. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.

Claims

1. A one-to-three precise and stable three-color mold frame, characterized by: It includes a three-color mold frame body, a positioning seat, a first driving mechanism and a second driving mechanism; The three-color mold frame body includes a top cover, a base and a mold frame. The center of the base has a longitudinal center line. Three mold frames are arranged on the base around the center line. The top cover is arranged on the top of the three mold frames, and the base is arranged on the bottom of the three mold frames. Three injection ports are arranged on the top cover. The injection ports are used for inserting injection nozzles. Each mold frame is provided with a cavity. One injection port is connected to one cavity. Positioning grooves are provided at positions corresponding to the three mold frames on the base. The positioning seat is arranged at the bottom of the base, and the base can rotate on the positioning seat with the center line of the base as the rotation center, so that the three-color mold frame body rotates on the positioning seat. A positioning pin is arranged on the positioning seat, and the positioning pin is used to be inserted into or pulled out of one of the positioning grooves. When the positioning pin is inserted into the positioning groove and inserted into place, the injection nozzle is aligned with one of the injection ports; The first driving mechanism is used to drive the three-color mold frame body to rotate so as to rotate the three positioning grooves to the positioning pins in sequence, and the second driving mechanism is used to drive the positioning pins to insert into the positioning grooves to position the three-color mold frame body or withdraw from the positioning grooves.

2. A one-to-three precise and stable three-color mold frame as claimed in claim 1, characterized in that: A micro switch is respectively arranged in the three positioning grooves, and the micro switch is used to control the discharge of the injection nozzle, so that when the positioning pin is inserted into place, the micro switch is turned on to discharge the injection nozzle, or when the positioning pin is out of the positioning groove, the micro switch is closed to stop the injection nozzle from discharging the material.

3. The one-to-three precise and stable three-color mold frame as claimed in claim 2, characterized in that: The injection nozzle is connected to three discharge pipes of different colors, and each discharge pipe is provided with a valve, and each valve is respectively communicated and connected with a micro switch in a different positioning groove.

4. The one-to-three precise and stable three-color mold frame as claimed in claim 3, characterized in that: The micro switch is telescopically arranged in the positioning groove, so as to be retracted into the base when the positioning pin is inserted, or to be extended out of the base when the positioning pin leaves the positioning groove.

5. The one-to-three precise and stable three-color mold frame according to claim 1, characterized in that: The positioning groove is V-shaped, and the shape and size of the positioning pin fit the positioning groove.

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