CN217196634U

CN217196634U - Die changing system of double-color injection molding machine

Info

Publication number: CN217196634U
Application number: CN202220821413.6U
Authority: CN
Inventors: 王涛
Original assignee: Guangzhou Soler Machinery Co Ltd
Current assignee: Guangzhou Soler Machinery Co Ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-08-16
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a mold changing system of a double-color injection molding machine, which comprises a mold changing vehicle arranged on one side of the double-color injection molding machine and an internal mold changing device arranged in the double-color injection molding machine; the die changing vehicle comprises a rack, a mobile station in sliding connection with the rack, and a first die platform and a second die platform which are arranged on the mobile station at intervals and used for bearing dies, wherein a first roller is rotationally connected onto the first die platform, and a second roller is rotationally connected onto the second die platform; the in-machine mold changing device comprises a guide roller and a clamping device which are arranged in the double-color injection molding machine, the guide roller is used for driving a mold to slide in the double-color injection molding machine, and the clamping device is used for fixing the mold on the double-color injection molding machine. The utility model discloses a double-colored injection molding machine retooling system has the retooling efficient, has reduced workman intensity of labour, has improved the characteristics of the security of retooling in-process.

Description

Die changing system of double-color injection molding machine

Technical Field

The utility model relates to a double-shot moulding plastics relevant technical field especially relates to a double-shot moulding machine retooling system.

Background

The double-color injection molding refers to a molding process that two different materials are injected into the same set of mold, so that the injection molded part is formed by the two materials. Some two materials are different in color, and some materials are different in hardness, so that the attractiveness, assembly and other performances of the product are improved. Generally, two injection molding machines or two injection molding machines are used for molding in double-color injection molding mode, and with the technology of the double-color injection molding machines becoming mature day by day, the double-color injection molding machines become the first choice of people due to high molding efficiency and good molding quality. And the horizontal correlation double-color injection molding machine occupies the share of most large double-color injection molding machines on the market.

The horizontal correlation double-color injection molding machine is provided with a middle plate, a fixed plate and a movable plate. The middle plate is arranged in the middle of the injection machine, the fixed plate and the movable plate are respectively arranged on two opposite sides of the middle plate, the fixed plate is fixed, the movable plate can move back and forth, and the middle plate can move back and forth and rotate 180 degrees. When the two sets of dies are arranged on the horizontal double-color injection molding machine, the male dies of the two sets of dies are respectively fixed on two sides of the middle plate, the female die of one set of dies is fixed on the movable plate, and the female die of the other set of dies is fixed on the fixed plate. During injection molding, a first part of products are injected, then the mold is opened, then the middle plate drives the male mold to rotate and is matched with the female mold of the other set of mold to inject the rest part of products, the mold is opened after injection molding, the products are taken out, and double-shot injection molding is completed.

Because the precision and interchangeability requirements of double-color injection molding are high, and the mold is large in size and heavy, when the mold is installed on a double-color injection molding machine, the mold needs to be lifted by means of a crown block, and then the mold is fixed on the double-color injection molding machine through the cooperative operation of a plurality of workers, so that the manual mold changing has low working efficiency and high labor intensity of the workers, and certain potential safety hazards exist for the mold changing workers.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-colored injection molding machine retooling system, it has the characteristics that retooling is efficient, workman low in labor strength and security performance is high to overcome not enough that exist among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

a mold changing system of a double-color injection molding machine comprises a mold changing trolley arranged on one side of the double-color injection molding machine and an in-machine mold changing device arranged in the double-color injection molding machine;

the mould changing trolley comprises a rack, a mobile platform in sliding connection with the rack, and a first mould platform and a second mould platform which are arranged on the mobile platform at intervals and used for bearing moulds, wherein a first roller is rotationally connected onto the first mould platform, and a second roller is rotationally connected onto the second mould platform;

the in-machine die changing device comprises a guide roller and a clamping device which are arranged in the double-color injection molding machine, the guide roller is used for driving the die to slide in the double-color injection molding machine, and the clamping device is used for fixing the die on the double-color injection molding machine.

In one embodiment, a first guide groove is formed in one end, close to the second roller, of the first roller, a second guide groove is formed in one end, close to the first roller, of the second roller, and the distance between the first guide groove and the second guide groove is equal to the thickness of a middle plate of the double-color injection molding machine.

In one embodiment, the mold changing trolley further comprises a third mold platform and a fourth mold platform, the first mold platform, the second mold platform, the third mold platform and the fourth mold platform are sequentially arranged at intervals along the length direction of the moving platform, the structure of the third mold platform is the same as that of the first mold platform, and the structure of the fourth mold platform is the same as that of the second mold platform.

In one embodiment, the mold changing trolley further comprises a mold pushing power piece, the mold pushing power piece is installed on the moving table, and the mold pushing power piece is used for driving the mold to slide on the first mold platform and the second mold platform.

In one embodiment, the number of the guide rollers is four, two sets of the guide rollers are mounted at the bottoms of two sides of the middle plate of the double-color injection molding machine, the other two sets of the guide rollers are respectively mounted at the bottoms of the movable plate and the fixed plate of the double-color injection molding machine, the number of the clampers is multiple, each clamper is respectively mounted on the middle plate, the movable plate and the fixed plate of the double-color injection molding machine, and the clampers are used for fixing the mold on the double-color injection molding machine.

In one embodiment, the in-machine mold changing device further comprises a positioning cylinder, the positioning cylinder is mounted on the middle plate of the double-color injection molding machine and/or the movable plate and the fixed plate of the double-color injection molding machine, an elastic pin is arranged on the positioning cylinder, and a positioning groove corresponding to the elastic pin is arranged on the mold.

In one embodiment, the mold changing vehicle further comprises a sliding power part, the sliding power part is installed on the rack and used for driving the mobile station to slide on the rack, a linear guide rail is arranged at the top of the rack, and a sliding block corresponding to the linear guide rail is arranged at the bottom of the mobile station.

In one embodiment, the rack comprises a machine table, a support column, a fixed seat, a connecting screw rod and an adjusting screw rod, the support column is connected with the bottom of the machine table, the fixed seat is fixed on a floor, the connecting screw rod is used for connecting the support column and the fixed seat, the adjusting screw rod is in threaded connection with the support column, and the bottom of the adjusting screw rod is abutted to the fixed seat.

In one embodiment, the transfer table is arranged between the double-color injection molding machine and the mold changing trolley, and comprises a fixed frame, a sliding seat in sliding connection with the fixed frame, and a fifth mold platform and a sixth mold platform which are arranged on the sliding seat at intervals and used for bearing molds, wherein a fifth roller is rotatably connected onto the fifth mold platform, and a sixth roller is rotatably connected onto the sixth mold platform.

In one embodiment, the injection molding machine further comprises a positioning assembly and a controller, wherein the positioning assembly comprises a transmitter and a receiver, the transmitter is installed on a middle plate of the double-color injection molding machine, the receiver is installed on the mold changing car, and the controller is used for controlling the cooperative operation of the mold changing car, the in-machine mold changing device and the positioning assembly.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a mold changing system of a double-color injection molding machine, which has the characteristics of high mold changing efficiency, low labor intensity of workers and high safety performance; when the mold is changed, two sets of molds to be installed are respectively hoisted on a first mold platform and a second mold platform through hoisting equipment, then a moving table slides on a frame, the two sets of molds are sent to positions corresponding to the double-color injection molding machine, then the two sets of molds respectively slide to the double-color injection molding machine from the first mold platform and the second mold platform, then the two sets of molds are sent into the double-color injection molding machine through guide rollers, and after the two sets of molds reach the designated positions in the double-color injection molding machine, a clamping device clamps and fixes the molds on the double-color injection molding machine.

Drawings

Fig. 1 is a schematic structural diagram of a mold changing system of a two-color injection molding machine according to a preferred embodiment of the present invention;

FIG. 2 is a side view of the mold change system of the two-color injection molding machine shown in FIG. 1;

FIG. 3 is a front view of a mold change carriage in the mold change system of the two-color injection molding machine shown in FIG. 1;

FIG. 4 is a top view of the transfer cart shown in FIG. 3;

FIG. 5 is a side view of the transfer cart shown in FIG. 3;

FIG. 6 is a schematic structural diagram of the mold changing device in the double-color injection molding machine shown in FIG. 2, which is installed on the middle plate of the double-color injection molding machine;

FIG. 7 is a top view of a transition table in the mold change system of the two-color injection molding machine shown in FIG. 1;

FIG. 8 is a side view of the transition table shown in FIG. 7.

Reference is made to the accompanying drawings in which:

a mold changing system 100 of a two-color injection molding machine;

the mold changing machine comprises a mold changing trolley 10, a frame 11, a machine table 111, a supporting column 112, a fixed seat 113, a connecting screw 114, an adjusting screw 115, a linear guide rail 116, a moving table 12, a sliding block 121, a first mold platform 13, a first roller 131, a first guide groove 1310, a second mold platform 14, a second roller 141, a second guide groove 1410, a third mold platform 15, a fourth mold platform 16, a sliding power part 17, a mold pushing power part 18 and a guide block 19; the die changing device 20 in the machine, the guide roll 21, the clamping device 22 and the positioning cylinder 23; a transition table 30, a fixed frame 31, a sliding seat 32, a fifth mould platform 33, a fifth roller 331, a sixth mould platform 34 and a sixth roller 341; a double-color injection molding machine 40, a middle plate 41, a fixed plate 42 and a movable plate 43; a mold 50, a face plate 51, and a bottom plate 52.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When the number of an element is referred to as "a plurality," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The present invention will be described in detail with reference to the embodiments shown in the drawings:

referring to fig. 1 to 8, a mold changing system 100 of a dual-color injection molding machine according to a preferred embodiment of the present invention includes a mold changing carriage 10 disposed at one side of a dual-color injection molding machine 40 and an internal mold changing device 20 installed in the dual-color injection molding machine 40; the utility model discloses a double-colored injection molding machine retooling system 100 can replace artifical retooling, has the advantage that retooling is efficient, workman low in labor strength and the security performance is high.

The conventional horizontal opposed double color injection molding machine 40 is provided with a middle plate 41, a fixed plate 42 and a movable plate 43. The middle plate 41 is disposed in the middle of the two-color injection molding machine 40, the fixed plate 42 and the movable plate 43 are disposed on opposite sides of the middle plate 41, respectively, and the fixed plate 42 is fixed, the movable plate 43 is movable back and forth, and the middle plate 41 is movable back and forth and rotatable 180 degrees. When two-color injection molding is performed, two sets of molds 50 need to be prepared, the male molds of the two sets of molds 50 are the same, the female molds are different, when the two sets of molds 50 are installed on the horizontal two-color injection molding machine 40, the male molds of the two sets of molds 50 are respectively fixed on two opposite sides of the middle plate 41, the female mold of one set of molds 50 is fixed on the fixed plate 42, and the female mold of the other set of molds 50 is fixed on the movable plate 43. During injection molding, the first part of products are firstly injected, then the mold is opened, then the middle plate 41 drives the male mold and the first part of molded products to rotate to be matched with the female mold of the other set of mold 50 to inject the rest of products, the mold is opened after injection molding, the products are taken out, and double-color injection molding is completed. As shown in fig. 5, a large injection mold 50 is provided with a top plate 51 and a bottom plate 52 at the bottom, and the top plate 51 and the bottom plate 52 usually protrude from the body of the mold in order to protect the peripheral components (circuit components, hydraulic components, or pneumatic components) of the mold 50 and facilitate the clamping of the mold 50 on an injection molding machine.

As shown in fig. 1 to 5, the mold changing carriage 10 is provided on one side of the two-color injection molding machine 40, and further, in order to prevent the mold changing carriage 10 from causing an obstruction to a worker operating the two-color injection molding machine 40, the mold changing carriage 10 is provided on a non-operating side of the two-color injection molding machine 40. The mold changing cart 10 includes a frame 11, and a movable table 12 slidably coupled to the frame 11. Further, the rack 11 includes a machine table 111, a supporting column 112, a fixing seat 113, a connecting screw 114 and an adjusting screw 115, the supporting column 112 is connected to the bottom of the machine table 111, the fixing seat 113 is fixed on the floor, one end of the connecting screw 114 is connected to the fixing seat 113, the other end of the connecting screw passes through the bottom of the supporting column 112, and one end of the connecting screw 114 passing through the supporting column 112 is connected to a nut (not shown); in order to prevent the nuts from loosening, two nuts are connected to one end of the connecting screw 114 penetrating through the supporting column 112 in a threaded manner; the adjusting screw 115 is in threaded connection with the supporting column 112, and the bottom of the adjusting screw 115 abuts against the fixed seat 113. The horizontal adjustment of the frame 11 is facilitated by the cooperation of the connecting screw 114 and the adjusting screw 115, because it is difficult to maintain a uniform level on the ground, and the top of the frame 11 can be maintained horizontal by finely adjusting the connecting screw 114 and the adjusting screw 115. Further, the frame 11 further includes a linear guide 116, and the mobile station 12 is provided with a slider 121 corresponding to the linear guide 116; the linear guide 116 is installed on the top of the machine base 111, and the slider 121 is installed on the bottom of the mobile station 12.

As shown in fig. 3 and 4, the mold changing cart 10 further includes a first mold platform 13 and a second mold platform 14 spaced apart from each other on the movable table 12 for carrying the mold 50, the first mold platform 13 is rotatably connected to the first roller 131, and the second mold platform 14 is rotatably connected to the second roller 141. Further, a first guide groove 1310 is formed at an end of the first roller 131 close to the second roller 141, and a second guide groove 1410 is formed at an end of the second roller 141 close to the first roller 131. Positioning of the molds 50 when placed on the first mold platform 13 and the second mold platform 14 is facilitated by providing the first guide groove 1310 and the second guide groove 1410, and when two sets of molds 50 are placed on the first mold platform 13 and the second mold platform 14, respectively, the two sets of molds 50 are placed opposite to each other, and it is ensured that the bottom plate 52 of the mold 50 placed on the first mold platform 13 is caught in the first guide groove 1310 and the bottom plate 52 of the mold 50 placed on the second mold platform 14 is caught in the second guide groove 1410. In addition, by providing the first guide groove 1310 and the second guide groove 1410, the deviation of the mold 50 can be prevented when the mold 50 is slidably transferred on the first mold platform 13 or the second mold platform 14. Further, the distance between the first guide groove 1310 and the second guide groove 1410 is equal to the thickness of the middle plate 41 of the two-color injection molding machine 40, so that the arrangement can prevent the mold 50 from colliding with the middle plate 41 when sliding into the two-color injection molding machine 40; in addition, the female molds of the two sets of molds 50 for two-color injection are identical, and the female molds of the two sets of molds 50 are fixed to the opposite sides of the middle plate 41, respectively, and when the mold change is performed by the mold change carriage 10, it is necessary to perform positioning with reference to the middle plate 41.

Referring to fig. 3 and 4, the mold changing cart 10 further includes a third mold platform 15 and a fourth mold platform 16, the first mold platform 13, the second mold platform 14, the third mold platform 15 and the fourth mold platform 16 are sequentially disposed at intervals along the length direction of the moving table 12, the third mold platform 15 has the same structure as the first mold platform 13, and the fourth mold platform 16 has the same structure as the second mold platform 14, so that the structures of the third mold platform 15 and the fourth mold platform 16 are not described in detail. By arranging the first mold platform 13, the second mold platform 14, the third mold platform 15 and the fourth mold platform 16, four sets of molds 50 can be loaded on the mold changing trolley 10 at the same time, and the mold changing efficiency can be improved. When the mold is changed, the two original sets of molds 50 on the double-color injection molding machine 40 are changed and loaded on the first mold platform 13 and the second mold platform 14, and the two sets of molds 50 to be installed are loaded on the third mold platform 15 and the fourth mold platform 16, so that the sliding time of the mobile station 12 is saved, and the mold changing efficiency is improved.

As shown in fig. 5, the mold changing carriage 10 further includes a sliding power member 17. The sliding power part 17 is installed on a machine table on the machine frame 11, and the sliding power part 17 is used for driving the mobile station 12 to slide on the machine frame 11. Further, the sliding power part 17 is a servo motor, a gear is arranged at the output end of the sliding power part 17, a rack corresponding to the gear is installed on the mobile station 12, and the sliding precision of the mobile station 12 is more accurate through the matching of the servo motor, the gear and the rack. In other embodiments, the sliding power member 17 may also drive the moving stage 12 to slide on the frame 11 through a transmission cooperation such as a synchronous belt and a synchronous wheel, a ball screw and a ball nut.

As shown in fig. 4, the mold changing cart 10 further includes a mold pushing power member 18, the mold pushing power member 18 is installed on the moving table 12, and the mold pushing power member 18 is used for driving the mold 50 to slide on the first mold platform 13, the second mold platform 14, the third mold platform 15 and the fourth mold platform 16. In this embodiment, the mold pushing power component 18 is used for driving the rollers of the first mold platform 13, the second mold platform 14, the third mold platform 15 and the fourth mold platform 16 to rotate, so as to drive the mold 50 to slide; the number of the mold pushing power parts 18 is four, and the four mold pushing power parts 18 correspond to the first mold platform 13, the second mold platform 14, the third mold platform 15 and the fourth mold platform 16 respectively. Alternatively, the mold pushing power part 18 drives the roller to rotate by matching a chain wheel with a chain or a synchronous wheel with a synchronous belt. Alternatively, the ejector die power member 18 is a motor.

As shown in fig. 5, in order to facilitate positioning when hoisting the mold 50, the mold changing cart 10 further includes a mold hoisting guide block 19, and the mold hoisting guide block 19 is disposed at the edges of the first mold platform 13, the second mold platform 14, the third mold platform 15, and the fourth mold platform 16, and is used for assisting positioning when hoisting the mold 50 on each mold platform, and also can prevent the mold 50 from falling off from the mold platform when sliding on each mold platform.

In other embodiments, the mold-pushing power member 18 can also directly drive the mold 50 to slide on the first mold platform 13, the second mold platform 14, the third mold platform 15 and the fourth mold platform 16, i.e. the rollers on each mold platform are unpowered rollers. Alternatively, the mold-pushing power member 18 is a cylinder, or a motor.

As shown in fig. 6, the in-machine die changer 20 is installed in the two-color injection molding machine 40 for feeding the die 50 into the two-color injection molding machine 40 or removing the die 50 out of the two-color injection molding machine 40. The in-machine mold changing device 20 comprises a guide roller 21 and a clamp 22 which are installed in the double-color injection molding machine 40, wherein the guide roller 21 is used for driving the mold 50 to slide in the double-color injection molding machine 40, and the clamp 22 is used for fixing the mold 50 on the double-color injection molding machine 40. Further, the number of the guide rollers 21 is four, wherein two sets of the guide rollers 21 are installed at the bottom of the opposite sides of the middle plate 41, and the other two sets of the guide rollers 21 are respectively installed at the bottom of the fixed plate 42 and the movable plate 43. Further, the guide roller 21 is driven by a motor; when the mold 50 slides to the double-color injection molding machine 40 from the mold changing trolley 10, the guide roller 21 rotates to drive the mold 50 to move to the double-color injection molding machine 40; when the mold is lower, the reverse is also true. The gripper 22 is a universal standard or part known to those skilled in the art, and its structure and principle are known to those skilled in the art through technical manuals or through routine experimentation, and thus the specific structure of the gripper 22 will not be described in detail. Further, the number of the clampers 22 is plural, and each of the clampers 22 is attached to the middle plate 41, the fixed plate 42, and the movable plate 43 of the two-color injection molding machine 40, and the clampers 22 are used to fix the mold 50 to the two-color injection molding machine 40. In this embodiment, the number of the clamping devices 22 is sixteen, wherein four clamping devices 22 are installed on the fixed plate 42, four clamping devices 22 are respectively installed on two opposite sides of the middle plate 41, the remaining four clamping devices 22 are installed on the movable plate 43, and the clamping devices 22 are used for clamping the panel 51 and the bottom plate 52 protruding out of the body of the mold 50, so as to fix the mold 50 on the two-color injection molding machine 40. The gripper 22 may be pneumatically, hydraulically or magnetically actuated, and in this embodiment, the gripper 22 is a hydraulically actuated gripper 22.

Further, in order to facilitate the positioning of the mold 50 in the two-shot molding machine, the in-machine mold changing device 20 further includes a positioning cylinder 23, the positioning cylinder 23 is a universal standard component or a component known to those skilled in the art, and the structure and principle thereof are known to those skilled in the art through technical manuals or through routine experiments, so the detailed description of the specific structure of the positioning cylinder 23 is omitted. The positioning cylinder 23 is attached to the middle plate 41 of the two-color injection molding machine 40 and/or the fixed plate 42 and the movable plate 43 of the two-color injection molding machine 40, and the positioning cylinder 23 may be attached only to the middle plate 41 or only to the fixed plate 42 and the movable plate 43, or may be attached to the middle plate 41, the fixed plate 42, and the movable plate 43 at the same time. The number of positioning cylinders 23 is the same as the number of positioning grooves according to the mold 50. The positioning cylinder 23 is provided with an elastic pin, and the mold 50 is provided with a positioning groove corresponding to the elastic pin. When the mold 50 slides into the two-color injection molding machine 40, the mold 50 stops sliding when the elastic pin is inserted into the positioning groove on the mold 50, and the clamper 22 clamps the mold 50; when the mold is to be molded, the elastic pin is retracted to be separated from the positioning groove, then the clamp 22 releases the mold 50, and the guide roller 21 rotates to drive the mold 50 to slide out of the double-color injection molding machine 40.

In one embodiment, because the mold change carriage 10 cannot be positioned proximate to the two-color injection molding machine 40 due to site considerations, the two-color injection molding machine mold change system 100 further includes a transition table 30, the transition table 30 is positioned between the two-color injection molding machine 40 and the mold change carriage 10, and the transition table 30 has a structure similar to the structure of the mold change carriage 10. The transition table 30 includes a fixed frame 31, a sliding seat 32 slidably connected to the fixed frame 31, and a fifth mold platform 33 and a sixth mold platform 34 which are disposed on the sliding seat 32 at intervals and used for bearing the mold 50, wherein a fifth roller 331 is rotatably connected to the fifth mold platform 33, and a sixth roller 341 is rotatably connected to the sixth mold platform 34. The bottom of mount 31 is provided with the leveling structure the same with frame 11, is provided with linear guide on the mount 31, is provided with the slider that corresponds with linear guide on the seat 32 that slides to also slide along mount 31 through the servo motor drive seat 32 that slides, servo motor passes through rack and pinion cooperation transmission, and is step-by-step accurate. One end of the fifth roller 331, which is close to the sixth roller 341, is provided with a guide groove, one end of the sixth roller 341, which is close to the fifth roller 331, is also provided with a guide groove, and the distance between the guide groove on the fifth roller 331 and the guide groove on the sixth roller 341 is equal to the thickness of the middle plate of the double-color injection molding machine 40.

The utility model discloses a double-shot molding machine retooling system 100 still includes locating component (not shown) and controller (not shown), and locating component includes transmitter and receiver, and the transmitter is installed on double-shot molding machine 40's medium plate 41, and the receiver is installed on retooling car 10, when still containing transition platform 30 in the embodiment, also installs the receiver on transition platform 30. When the mold is required to be changed, a transmitter on the middle plate 41 transmits a position signal, and after the mold changing cart 10 and a receiver on the transition table 30 receive the position information, the movable table 12/the sliding seat 32 are driven to slide to a corresponding position, and then the mold is changed. The controller is used for controlling the cooperative operation of the mold changing vehicle 10, the in-machine mold changing device 20, the transition table 30 and the positioning assembly.

When the double-color injection molding machine mold changing system is used, two sets of molds 50 to be installed are oppositely placed on the third mold platform 15 and the fourth mold platform 16 by utilizing the hoisting equipment, then the operation controller starts the double-color injection molding machine mold changing system 100, then the sliding power part 17 drives the moving platform 12 to slide to a specified position along the rack 11 (position information is given by the emitter on the middle plate 41), and meanwhile, the sliding seat 32 on the transition platform 30 slides to the specified position along the fixed frame 31. When the mold changing cart 10 and the transition table 30 are in place, the original two sets of molds 50 in the two-color injection molding machine 40 are pushed out of the two-color injection molding machine 40 by the mold changing device 20 (the positioning cylinder 23 controls the elastic pin to retract, then the clamp 22 releases the molds 50, then the guide roller 21 rotates to push the molds 50 to the transition table 30), the fifth roller 331 and the sixth roller 341 on the transition table 30 rotate to drive the molds 50 to slide on the transition table 30 to the mold changing cart 10, and the original two sets of molds 50 are transferred to the first mold platform 13 and the second mold platform 14 on the mold changing cart 10. Then the sliding power part 17 continues to push the moving table 12 to slide until the positions of the fifth mold platform 33 and the sixth mold platform 34 correspond to the position information given by the emitter, then the mold pushing power part 18 drives the mold 50 to slide, the mold 50 is transferred to the transition table 30, then the transition table 30 sends the mold 50 to the two-color injection molding machine 40, then the mold 50 is sent into the two-color injection molding machine 40 by the guide roller 21, after the elastic pin of the positioning cylinder 23 is inserted into the positioning groove on the mold, the guide roller 21 stops rotating, and finally the mold 50 is clamped by the clamp to complete the mold changing operation.

The utility model discloses a mold changing system 100 of a double-color injection molding machine, which has the characteristics of high mold changing efficiency, low labor intensity of workers and high safety performance; when the mold is changed, two sets of molds 50 to be installed are respectively hung on the first mold platform 13 and the second mold platform 14 through hoisting equipment, then the mobile station 12 slides on the rack 11, the two sets of molds 50 are sent to the position corresponding to the double-color injection molding machine 40, then the two sets of molds 50 respectively slide to the double-color injection molding machine 40 from the first mold platform 13 and the second mold platform 14, then the two sets of molds 50 are sent into the double-color injection molding machine 40 through the guide rollers 21, and when the two sets of molds 50 reach the designated position in the double-color injection molding machine 40, the clamping device 22 clamps and fixes the molds 50 on the double-color injection molding machine 40.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A mold changing system of a double-color injection molding machine is characterized by comprising a mold changing trolley arranged on one side of the double-color injection molding machine and an in-machine mold changing device arranged in the double-color injection molding machine;

2. The mold change system of a two-color injection molding machine according to claim 1, wherein the first roller has a first guide groove at an end thereof adjacent to the second roller, and the second roller has a second guide groove at an end thereof adjacent to the first roller, the first guide groove and the second guide groove being spaced apart from each other by a distance equal to a thickness of a middle plate of the two-color injection molding machine.

3. The mold changing system of a two-color injection molding machine according to claim 1, wherein the mold changing carriage further comprises a third mold platform and a fourth mold platform, the first mold platform, the second mold platform, the third mold platform and the fourth mold platform are sequentially arranged at intervals along the length direction of the moving table, the third mold platform has the same structure as the first mold platform, and the fourth mold platform has the same structure as the second mold platform.

4. The system of claim 1, wherein the mold change carriage further comprises a mold push power member, the mold push power member being mounted on the movable stage, the mold push power member being configured to drive the molds to slide on the first mold platform and the second mold platform.

5. The mold changing system for a two-color injection molding machine according to claim 1, wherein said guide rollers are four in number, two of said guide rollers are installed at the bottom of both sides of the middle plate of said two-color injection molding machine, the other two of said guide rollers are installed at the bottom of the movable plate and the fixed plate of said two-color injection molding machine, respectively, and said clampers are plural in number, each of said clampers is installed at the middle plate, the movable plate and the fixed plate of said two-color injection molding machine, respectively, and said clampers are used for fixing said mold to said two-color injection molding machine.

6. The mold changing system of a two-color injection molding machine according to claim 1, wherein said in-machine mold changing device further comprises a positioning cylinder, said positioning cylinder is mounted on the middle plate of said two-color injection molding machine and/or the movable plate and the fixed plate of said two-color injection molding machine, said positioning cylinder is provided with an elastic pin, and said mold is provided with a positioning groove corresponding to said elastic pin.

7. The mold changing system of a two-color injection molding machine according to claim 1, wherein the mold changing cart further comprises a sliding power member, the sliding power member is mounted on the frame, the sliding power member is used for driving the movable table to slide on the frame, a linear guide rail is arranged at the top of the frame, and a slide block corresponding to the linear guide rail is arranged at the bottom of the movable table.

8. The mold changing system of a two-color injection molding machine according to claim 1, wherein the frame comprises a machine table, a support column, a fixed seat, a connecting screw and an adjusting screw, the support column connects the bottom of the machine table, the fixed seat is fixed on a floor, the connecting screw is used for connecting the support column and the fixed seat, the adjusting screw is in threaded connection with the support column, and the bottom of the adjusting screw abuts against the fixed seat.

9. The mold changing system of a two-color injection molding machine according to claim 1, further comprising a transition table disposed between the two-color injection molding machine and the mold changing carriage, the transition table comprising a fixed frame, a sliding seat slidably coupled to the fixed frame, and a fifth mold platform and a sixth mold platform disposed on the sliding seat at an interval for carrying a mold, the fifth mold platform being rotatably coupled to a fifth roller, the sixth mold platform being rotatably coupled to a sixth roller.

10. The mold change system of a two-color injection molding machine according to claim 1, further comprising a positioning assembly and a controller, said positioning assembly comprising a transmitter and a receiver, said transmitter being mounted on a midplane of said two-color injection molding machine and said receiver being mounted on said mold change carriage, said controller for controlling the cooperative operation of said mold change carriage, said in-machine mold change device and said positioning assembly.