Multicolor core rotating mechanism and control method

Abstract

The invention belongs to the technical field of plastic injection molds, and particularly relates to a multicolor core rotating mechanism which comprises a mold core, a plate B is fixedly mounted on the outer surface of the mold core, a transmission vertical rod is fixed in the mold core in a penetrating mode, and a gear assembly is arranged below the outer surface of the transmission vertical rod and comprises a first gear. The first gear is fixedly installed below the outer surface of the transmission vertical rod, first bearings are fixedly connected to the top and the bottom of the first gear, and a plurality of evenly-distributed supporting rods are fixedly connected to the top of the inner side wall of the first bearing on the upper portion; through the design that the rotating motor is matched with the gear assembly, the first bearing, the second bearing and the third bearing, the requirement that only the rear mold core is rotated can be met, the design that the whole rear mold part of a traditional multi-color mold is rotated is changed, and therefore the rotating precision and smoothness of the mold core in the injection molding process are guaranteed; therefore, one-time injection molding of the plastic in the multi-color product can be completed by rotating each time.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of plastic injection mold, in particular to a multi-color core transfer mechanism and control method. BACKGROUND

[0002] Plastic injection mold is a tool for producing plastic products, and is widely used. Some plastic products in life need to use two or three materials due to the appearance or function of the product itself, that is, double-color mold or triple-color mold. Double-color mold is a multi-material injection molding technology, usually using two injection molding machines or one injection molding machine with two injection units. It combines two different colors or materials of plastics into a complete part through two injection molding processes. Triple-color mold is an extension of double-color mold, but it uses three different materials or colors in one molding process, which usually requires more complex mold design and higher precision control. Therefore, the application provides a multi-color core transfer mechanism and control method. SUMMARY

[0003] In order to make up for the shortcomings of the prior art and solve at least one technical problem raised in the background art.

[0004] The technical scheme adopted by the application to solve its technical problems is: a multi-color core transfer mechanism, comprising a mold core, wherein the outer surface of the mold core is fixedly installed with a B plate; A transmission vertical rod is fixedly installed inside the mold core, a gear assembly is arranged below the outer surface of the transmission vertical rod, the gear assembly comprises a gear one, the gear one is fixedly installed below the outer surface of the transmission vertical rod, the top and bottom of the gear one are fixedly connected with a bearing one, a plurality of uniformly distributed support rods are fixedly connected to the top of the inner side wall of the bearing one, a transmission rod tube position ring is fixedly connected to the top end of the support rod, the transmission rod tube position ring is fixedly installed with the B plate, and a transmission assembly is arranged on the outer surface of the gear one; A one-color slider, a two-color slider and a three-color slider are arranged on the outer surface of the mold core, the one-color slider, the two-color slider and the three-color slider are slidably connected with the B plate, a one-color product is correspondingly arranged on the one-color slider, a two-color product is correspondingly arranged on the two-color slider, and a three-color product is correspondingly arranged on the three-color slider; Three uniformly distributed inclined surfaces are arranged on the side surface of the mold core, and the inclined surfaces are precisely matched with the B plate.

[0005] Preferably, the transmission assembly comprises a gear two engagedly connected to the outer surface of the gear one, a bearing two fixedly installed inside the gear two, a gear three engagedly connected to the outer surface of the gear two, a bearing three fixedly installed inside the gear three, a gear four engagedly connected to the outer surface of the gear three, a rotating rod fixedly connected to the gear four, and a rotating motor fixedly installed at the top end of the rotating rod.

[0006] Preferably, a top rod is rotatably installed inside the transmission vertical rod, and the bottom of the top rod extends below the bottom of the transmission vertical rod.

[0007] Preferably, the gear one and the gear two and the gear three and the gear four are in series with each other.

[0008] Preferably, the connecting assembly is fixedly installed between the gear two and the gear three, the connecting assembly comprises connecting rings one and two arranged at the top of the gear two and the top of the gear three, the connecting rings one and two are rotatably installed through the limiting assembly and the gear two and the gear three, the connecting rings one and two are fixedly connected with a connecting block, and a through groove is arranged at the center of the connecting block.

[0009] Preferably, the limiting assembly comprises two limiting grooves arranged in the gear two and the gear three respectively, the inner upper surfaces of the two limiting grooves extend to the outside of the gear two and the gear three respectively, a plurality of limiting blocks are rotatably connected in the limiting grooves, the left limiting blocks are fixedly connected with the connecting ring one, and the right limiting blocks are fixedly connected with the connecting ring two.

[0010] Preferably, the limiting grooves and the limiting blocks are arranged in an inverted T shape, and the bottoms of the connecting rings one and two are respectively attached to the tops of the gear two and the gear three.

[0011] A control method of the multi-color rotating core mechanism, the method adopts the multi-color rotating core mechanism, and comprises the following steps: S1, the rotating motor is powered on and works, and the angle of each rotation of the rotating motor is controlled to be one hundred and twenty degrees, and the rotating motor drives the rotating rod and the gear four to rotate after working; S2, the gear four drives the gear three and the gear two in series with the gear four to rotate through the limiting of the bearing three and the bearing two, and the gear four drives the gear three to rotate, and the gear three drives the gear two to rotate; S3, the gear two drives the gear one to rotate after rotating, and the gear one drives the transmission vertical rod to rotate, and the mold core is driven to rotate, so that the angle of each rotation of the mold core is one hundred and twenty degrees.

[0012] The beneficial effects of the application are as follows: 1. The multi-color rotating core mechanism and control method, through the design of the rotating motor, gear assembly, bearing one, bearing two and bearing three, the requirement of rotating only the rear mold core of the rear mold can be met, and the design of rotating the whole rear mold part of the traditional multi-color mold is changed, so as to ensure the accuracy and smoothness of the rotation of the mold core during the injection molding process, and the rotating angle of the rotating motor is one hundred and twenty degrees each time, so that the injection molding of the plastic inside the multi-color product is completed each time, and the whole processing of the product is completed after one rotation, which not only meets the injection molding requirement of the multi-color mold, but also greatly simplifies the mold structure, improves the overall quality and service life of the mold, reduces the cost, reduces the maintenance, and improves the production efficiency.

[0013] 2. The multi-color rotating core mechanism and control method, the gear two and the gear three are connected through the integral connection of the connecting ring one, the connecting ring two and the connecting block, the gear two and the gear three are installed at the same time, and the gear two and the gear three do not need to be engaged and assembled during installation, so that the installation operation is more simple and convenient, and the rotation of the gear two and the gear three at the bottom of the connecting ring one and the connecting ring two is not affected through the limiting assembly, and the connecting assembly, the gear two and the gear three are taken and installed through the groove. BRIEF DESCRIPTION OF DRAWINGS

[0014] The application will be further described below with reference to the drawings.

[0015] Figure 1 is a perspective view of the application; Figure 2 is a partial view of the initial state of the mold core of the application; Figure 3 is a partial view of the mold core rotating one hundred and twenty degrees of the application; Figure 4 is a partial view of the mold core rotating two hundred and forty degrees of the application; Figure 5 is a schematic view of the B plate structure of the application; Figure 6 is a perspective view of the connecting assembly of the application; Figure 7 is a partial sectional view of the connecting assembly of the application; Figure 8 is a perspective view of the limiting block of the application; Figure 9 is a flow chart of the control system of the application.

[0016] In the diagram: 1. Mold core; 2. Single-color slider; 3. Two-color slider; 4. Three-color slider; 5. Single-color product; 6. Two-color product; 7. Three-color product; 8. Rotary motor; 9. Gear assembly; 91. Gear 1; 92. Gear 2; 93. Gear 3; 94. Gear 4; 10. Bearing 1; 101. Bearing 2; 102. Bearing 3; 11. Transmission rod tube ring; 12. Transmission vertical rod; 13. Top roller; 14. Connecting ring 1; 15. Connecting block; 16. Connecting ring 2; 17. Groove; 18. Limiting groove; 19. Limiting block. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] Example 1: As Figures 1 to 5 As shown in the embodiment of the present invention, a multi-color core-changing mechanism includes a mold core 1, and a B plate is fixedly installed on the outer surface of the mold core 1; A transmission vertical rod 12 is fixedly inserted through the mold core 1. A gear assembly 9 is provided below the outer surface of the transmission vertical rod 12. The gear assembly 9 includes a gear 91, which is fixedly installed below the outer surface of the transmission vertical rod 12. Bearings 10 are fixedly connected to the top and bottom of the gear 91. Multiple evenly distributed support rods are fixedly connected to the top of the inner side wall of the upper bearing 10. A transmission rod tube ring 11 is fixedly connected to the top of the support rod. The transmission rod tube ring 11 is fixedly installed with plate B. A transmission component is provided on the outer surface of the gear 91. The outer surface of the mold core 1 is provided with a one-color slider 2, a two-color slider 3, and a three-color slider 4. The one-color slider 2, the two-color slider 3, and the three-color slider 4 are all slidably connected to the B plate. The one-color slider 2 corresponds to a one-color product 5, the two-color slider 3 corresponds to a two-color product 6, and the three-color slider 4 corresponds to a three-color product 7. The mold core 1 has three evenly distributed inclined surfaces on its side, and the inclined surfaces are precisely fitted with plate B. When working, the transmission vertical rod 12 is connected with the center of the mold core 1 to drive the rotation of the mold core 1, and the transmission rod tube position ring 11 and the bearing one 10 are respectively installed on the B plate and the transmission vertical rod 12 to ensure the accuracy required by the normal rotation and movement of the transmission vertical rod 12, then the gear one 91 can be driven to rotate through the rotating assembly, and the gear one 91 drives the transmission vertical rod 12 to rotate after rotating, and the mold core 1 is rotated, since the bearing one 10 is connected with the transmission rod tube position ring 11 through the support rod, the support rod and the transmission rod tube position ring 11 will not rotate after the gear one 91 drives the transmission vertical rod 12 to rotate, and the B plate will not rotate, the one-color slider 2, the two-color slider 3 and the three-color slider 4 move on the B plate and will not rotate with the mold core 1, so the one-color slider 2, the two-color slider 3 and the three-color slider 4 correspondingly generate the one-color product 5, the two-color product 6 and the three-color product 7, and the slight error caused by rotation can be avoided through the precise cooperation of the inclined surface arranged on the side of the mold core 1 and the B plate, so as to meet the needs of injection molding.

[0019] The transmission assembly comprises a gear two 92 meshingly connected to the outer surface of the gear one 91, a bearing two 101 fixedly installed in the gear two 92, a gear three 93 meshingly connected to the outer surface of the gear two 92, a bearing three 102 fixedly installed in the gear three 93, a gear four 94 meshingly connected to the outer surface of the gear three 93, and a rotating rod fixedly connected to the gear four 94, wherein the top end of the rotating rod is fixedly installed with a rotating motor 8; when working, the rotating motor 8 is powered on and works, and the rotating angle of the rotating motor 8 is controlled to be one hundred and twenty degrees each time, and the rotating motor 8 drives the rotating rod and the gear four 94 to rotate after working, then the gear four 94 drives the gear three 93 and the gear two 92 connected in series to rotate through the limiting of the bearing three 102 and the bearing two 101, the gear four 94 drives the gear three 93 to rotate, the gear three 93 drives the gear two 92 to rotate, and then the gear two 92 drives the gear one 91 to rotate, and the gear one 91 drives the transmission vertical rod 12 to rotate, thereby controlling the rotating angle of the mold core 1 to be one hundred and twenty degrees each time.

[0020] The transmission vertical rod 12 is internally rotatably installed with a top rod 13, and the bottom of the top rod 13 extends below the bottom of the transmission vertical rod 12; when working, the bottom end of the top rod 13 is connected to an external injection molding machine, and since the connected part of the injection molding machine cannot rotate, when the transmission vertical rod 12 rotates, the transmission vertical rod 12 will not drive the connected part of the bottom end of the top rod 13 to rotate through the rotating installation of the top rod 13 and the transmission vertical rod 12.

[0021] The gear one 91 and the gear two 92 and the gear three 93 and the gear four 94 are connected in series; when working, the gear four 94 drives the gear three 93 to rotate after rotating, the gear three 93 drives the gear two 92 to rotate, and the gear two 92 drives the gear one 91 to rotate.

[0022] Embodiment Two: As shown in Figures 6 to 8 The connecting assembly includes connecting ring one 14 and connecting ring two 16 arranged at the top of gear two 92 and the top of gear three 93, the connecting ring one 14 and the connecting ring two 16 are rotatably arranged through the limiting assembly and gear two 92 and gear three 93, the connecting block 15 is fixedly connected between the connecting ring one 14 and the connecting ring two 16, and a through groove 17 is arranged at the inner center of the connecting block 15; in operation, the gear two 92 and the gear three 93 are integrally connected through the connecting ring one 14, the connecting ring two 16 and the connecting block 15, which facilitates the simultaneous installation of the gear two 92 and the gear three 93, and the gear two 92 and the gear three 93 do not need to be engaged and assembled during installation, thereby making the installation operation simpler and more convenient, and the rotation of the gear two 92 and the gear three 93 at the bottom of the connecting ring one 14 and the connecting ring two 16 is not affected through the limiting assembly, and the connecting assembly, the gear two 92 and the gear three 93 are conveniently taken and installed through the groove 17.

[0023] The limiting assembly includes two limiting grooves 18 arranged in the interior of the gear two 92 and the interior of the gear three 93 respectively, the inner upper surfaces of the two limiting grooves 18 extend to the exterior of the gear two 92 and the exterior of the gear three 93 respectively, and a plurality of limiting blocks 19 uniformly distributed are rotatably connected in the interior of the limiting groove 18, the left limiting block 19 is fixedly connected with the connecting ring one 14, and the right limiting block 19 is fixedly connected with the connecting ring two 16; in operation, the gear two 92 and the gear three 93 are rotatably arranged at the bottom of the connecting ring one 14 and the connecting ring two 16 through the insertion of the limiting block 19 in the limiting groove 18, which facilitates the rotation of the gear two 92 and the gear three 93 at the bottom of the connecting ring one 14 and the connecting ring two 16.

[0024] The limiting groove 18 and the limiting block 19 are arranged in an inverted T shape, and the bottoms of the connecting ring one 14 and the connecting ring two 16 are respectively fitted with the tops of the gear two 92 and the gear three 93; in operation, the insertion of the limiting block 19 in the limiting groove 18 is stable through the arrangement of the limiting groove 18 and the limiting block 19 in an inverted T shape, the limiting block 19 cannot move out of the limiting groove 18, the rotation of the gear two 92 and the gear three 93 can be stably limited, and the gear two 92 and the gear three 93 can be stably rotated at the bottom of the connecting ring one 14 and the connecting ring two 16.

[0025] As shown in Figure 9 A control method of a multi-color rotating core mechanism, which adopts the multi-color rotating core mechanism, includes the following steps: S1, the rotating motor 8 is powered on, and the angle of each rotation of the rotating motor 8 is controlled to be one hundred and twenty degrees, and the rotating motor 8 drives the rotating rod and the gear four 94 to rotate after working; S2, the gear four 94 drives the gear three 93 and the gear two 92 connected in series to rotate through the limiting of the bearing three 102 and the bearing two 101, and the gear four 94 drives the gear three 93 to rotate, and the gear three 93 drives the gear two 92 to rotate; S3, the gear two 92 drives the gear one 91 to rotate, and the gear one 91 drives the transmission vertical rod 12 to rotate, and makes the mold core 1 rotate, so that the angle of each rotation of the mold core 1 is one hundred and twenty degrees.

[0026] The above front, back, left, right, up, down are based on the drawings in the specification Figure 1 As the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0028] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-color core transfer mechanism, comprising a mold core (1), the outer surface of the mold core (1) is fixedly provided with a B plate; characterized in that A transmission vertical rod (12) is fixedly arranged in the mold core (1), a gear assembly (9) is arranged on the lower surface of the transmission vertical rod (12), the gear assembly (9) comprises a gear one (91), the gear one (91) is fixedly arranged on the lower surface of the transmission vertical rod (12), the top and bottom of the gear one (91) are fixedly connected with a bearing one (10), a plurality of uniformly distributed supporting rods are fixedly connected with the inner side wall of the bearing one (10), the top of the supporting rods is fixedly connected with a transmission rod pipe position ring (11), the transmission rod pipe position ring (11) is fixedly arranged with the B plate, and a transmission assembly is arranged on the outer surface of the gear one (91); A one-color slider (2), a two-color slider (3) and a three-color slider (4) are arranged on the outer surface of the mold core (1), the one-color slider (2), the two-color slider (3) and the three-color slider (4) are slidably connected with the B plate, the one-color slider (2) corresponds to a one-color product (5), the two-color slider (3) corresponds to a two-color product (6), and the three-color slider (4) corresponds to a three-color product (7); Three inclined surfaces are arranged on the side surface of the mold core (1), and the inclined surfaces are precisely matched with the B plate.

2. A multi-colour core changing mechanism according to claim 1, characterised in that: The transmission assembly comprises a gear two (92) which is engagedly connected with the outer surface of the gear one (91), the gear two (92) is fixedly provided with a bearing two (101) in the inner portion, the gear two (92) is engagedly connected with a gear three (93) on the outer surface, the gear three (93) is fixedly provided with a bearing three (102) in the inner portion, the gear three (93) is engagedly connected with a gear four (94) on the outer surface, the gear four (94) is fixedly connected with a rotating rod, and the top of the rotating rod is fixedly provided with a rotating motor (8).

3. A multi-colour core changing mechanism according to claim 2, wherein: A top rod (13) is rotatably arranged in the transmission vertical rod (12), and the bottom of the top rod (13) extends to below the bottom of the transmission vertical rod (12).

4. A multi-colour core changing mechanism according to claim 3, wherein: The gear one (91) and the gear two (92) and the gear three (93) and the gear four (94) are connected in series.

5. A multi-colour core changing mechanism according to claim 4, wherein: A connecting assembly is further arranged between the gear two (92) and the gear three (93), the connecting assembly comprises a connecting ring one (14) and a connecting ring two (16) arranged on the top of the gear two (92) and the top of the gear three (93), the connecting ring one (14) and the connecting ring two (16) are rotatably arranged through a limiting assembly and the gear two (92) and the gear three (93), the connecting ring one (14) and the connecting ring two (16) are fixedly connected with a connecting block (15), and a through groove (17) is formed in the center of the connecting block (15).

6. A multi-colour core changing mechanism according to claim 5, wherein: The limiting assembly comprises two limiting grooves (18) respectively arranged in the inside of the second gear (92) and the inside of the third gear (93), the upper surfaces of the two limiting grooves (18) extend to the outside of the second gear (92) and the outside of the third gear (93) respectively, a plurality of limiting blocks (19) are rotationally connected in the limiting grooves (18), the left limiting blocks (19) are fixedly connected with the first connecting ring (14), and the right limiting blocks (19) are fixedly connected with the second connecting ring (16).

7. A multi-colour core changing mechanism according to claim 6, wherein: The limiting groove (18) and the limiting block (19) are both arranged in an inverted T shape, and the bottoms of the first connecting ring (14) and the second connecting ring (16) are respectively attached to the tops of the second gear (92) and the third gear (93).

8. A method of controlling a multi-color core-set mechanism, the method employing a multi-color core-set mechanism as claimed in claim 7, characterized by: The method comprises the following steps: S1, the rotating motor (8) is powered on, the angle of each rotation of the rotating motor (8) is controlled to be 120 degrees, and the rotating motor (8) drives the rotating rod and the fourth gear (94) to rotate after being powered on; S2, the fourth gear (94) drives the third gear (93) and the second gear (92) connected therewith to rotate through the limiting of the bearing three (102) and the bearing two (101), the fourth gear (94) drives the third gear (93) to rotate, and the third gear (93) drives the second gear (92) to rotate; S3, the second gear (92) drives the first gear (91) to rotate after rotating, the first gear (91) drives the transmission vertical rod (12) to rotate, and the mold core (1) is rotated, so that the angle of each rotation of the mold core (1) is controlled to be 120 degrees.

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