Fully automatic disk rotary single-color injection molding production line

Abstract

The present invention discloses a fully automatic disk rotary single-color injection molding production line, which includes a combined central body, an injection molding machine, a disk, a base body, a plurality of single-color molds, a mold opening and closing mechanism having the same number as the single-color molds and used to drive the single-color molds to perform mold opening and closing movements, and a rotary drive mechanism used to drive the disk to rotate. The combined central body is arranged vertically and its lower end is assembled to the base body. The disk is located directly above the base body and sleeved on the combined central body, and the disk can rotate around the center line of the combined central body; all the mold opening and closing mechanisms are assembled on the disk and arranged in a circle at intervals on the disk, and each single-color mold is assembled to a corresponding mold opening and closing mechanism. The injection molding machine is located beside the disk, and the rotary drive mechanism is located below the disk and selectively drives any single-color mold on the disk to rotate to a position directly opposite to the injection molding machine, and the injection molding machine presses the mold and injects into the single-color mold; so as to achieve the purpose of automatic single-color injection molding and improve efficiency.

Description

Technical Field

[0001] The present invention relates to the field of molds, and particularly to a fully automatic disk rotary single-color injection molding production line. Background Art

[0002] As is well known, footwear products are generally formed by molds, and the molds for forming footwear products can be divided into single-color molds and two-color molds.

[0003] Among them, in the existing footwear product production line, it includes a single-color mold for forming footwear products, an injection machine for injecting molten liquid into the single-color mold, and a mold opening and closing mechanism for driving the single-color mold to open and close. However, such a footwear product production line has the defects of low automation degree and low production efficiency.

[0004] Therefore, there is an urgent need for a fully automatic disk rotary single-color injection molding production line with high automation degree and high production efficiency to overcome the above defects. Summary of the Invention

[0005] The purpose of the present invention is to provide a fully automatic disk rotary single-color injection molding production line with high automation degree and high production efficiency.

[0006] To achieve the above purpose, the fully automatic disk rotary single-color injection molding production line of the present invention includes a combined central body, an injection molding machine, a disk, a base body, a plurality of single-color molds, a mold opening and closing mechanism having the same number as the single-color molds and used to drive the single-color molds to perform mold opening and closing movements, and a rotary drive mechanism used to drive the disk to rotate. The combined central body is arranged vertically and its lower end is assembled to the base body. The disk is located directly above the base body and sleeved on the combined central body, and the disk can rotate around the center line of the combined central body. All the mold opening and closing mechanisms are assembled on the disk and arranged in a circle at intervals on the disk. Each single-color mold is assembled to a corresponding one of the mold opening and closing mechanisms. The injection molding machine is located beside the disk. The rotary drive mechanism is located below the disk and selectively drives any one of the single-color molds on the disk to rotate to a position directly opposite to the injection molding machine, and the injection molding machine presses and injects the single-color mold.

[0007] Compared with the prior art, since the combined central body is arranged vertically and its lower end is assembled on the base body, the base body provides support for the combined central body; and since the disk is located directly above the base body and sleeved on the combined central body, the disk can rotate around the center line of the combined central body; all the mold opening and closing mechanisms are assembled on the disk and arranged in a circle at intervals on the disk, each single-color mold is assembled on a corresponding mold opening and closing mechanism, and the injection molding machine is located beside the disk; the rotation driving mechanism is located below the disk and selectively drives any single-color mold on the disk to rotate to a position directly opposite to the injection molding machine, and the injection molding machine presses and injects the single-color mold directly opposite to it, so as to realize injection molding of any single-color mold on the disk by the same injection molding machine, thereby improving the automation degree and production efficiency; at the same time, with the cooperation of the mold opening and closing mechanism, each single-color mold on the disk can perform automatic mold opening and closing movement, so that the product is more convenient to take out. Brief Description of the Drawings

[0008] Figure 1 is a schematic three-dimensional structure diagram of the full-automatic disk rotary single-color injection molding production line of the present invention.

[0009] Figure 2 is Figure 1 a schematic plan structure diagram of the injection molding machine in the full-automatic disk rotary single-color injection molding production line shown when viewed in the direction of arrow B.

[0010] Figure 3 is Figure 2 a schematic three-dimensional structure diagram of the mold pressing part in the injection molding machine shown.

[0011] Figure 4 is Figure 3 a schematic plan structure diagram of the mold pressing part shown when viewed in the direction of arrow B.

[0012] Figure 5a is Figure 4 a schematic diagram of the mold pressing part for pivoting and finely adjusting the mold pressing frame forward and downward.

[0013] Figure 5b is Figure 4 a schematic diagram of the mold pressing part for pivoting and finely adjusting the mold pressing frame backward and upward.

[0014] Figure 6 is a schematic three-dimensional structure diagram of the combined central body in the full-automatic disk rotary single-color injection molding production line of the present invention.

[0015] Figure 7 is Figure 6 a schematic plan structure diagram of the combined central body shown when viewed from bottom to top.

[0016] Figure 8 is along Figure 7Internal structure schematic diagram after cutting along line D-D in the [object].

[0017] Figure 9 is the Figure 7 Internal structure schematic diagram after cutting along line E-E in the [object].

[0018] Figure 10 is Figure 7 Stereoscopic structure schematic diagram of the combined center body shown in the figure mounted on both the disc and the base body.

[0019] Figure 11 is Figure 10 Internal structure schematic diagram after the combined center body shown in the figure is cut by a plane passing through its center line, and this figure only shows part of the disc and part of the base body.

[0020] Figure 12 is Figure 1 Stereoscopic structure schematic diagram of the mold opening and closing mechanism in the full-automatic disc rotary single-color injection molding production line shown in the figure when it is mounted on the disc and in the mold closing state.

[0021] Figure 13 is Figure 12 State schematic diagram of the mold opening and closing mechanism when the upper and lower sliding frames together with the upper mold base body, the upper mold and the flipping drive are slid upward to a preset distance as shown in the figure.

[0022] Figure 14 is Figure 13 State schematic diagram of the mold opening and closing mechanism when the mold closing side of the mold base body is flipped outward by the flipping drive to a position offset from the lower mold base body as shown in the figure. Detailed implementation manner

[0023] In order to elaborate in detail the technical content and structural features of the present invention, the following further description is made in conjunction with the implementation manners and with reference to the drawings.

[0024] Please refer to Figure 1 and Figure 11, the fully automatic disk rotary single-color injection molding production line 1 of the present invention includes a combined central body 100, an injection molding machine 200, a disk 300a, a base body 300b, eight single-color molds 400, a mold opening and closing mechanism 500 having the same number as the single-color molds 400 and used to drive the single-color molds 400 to perform mold opening and closing movements, and a rotary drive mechanism 600 used to drive the disk 300a to rotate. The combined central body 100 is arranged vertically and its lower end is assembled to the base body 300b, and the base body 300b provides a supporting effect on the combined central body 100. Preferably, the combined central body 100 is arranged vertically, but it is not limited thereto. The disk 300a is located directly above the base body 300b and sleeved on the combined central body 100, so that the disk 300a can rotate around the center line of the combined central body 100. All the mold opening and closing mechanisms 500 are assembled on the disk 300a, and the disk 300a provides support for the mold opening and closing mechanisms 500 and drives the mold opening and closing mechanisms 500 to rotate around the center line of the combined central body 100 together; all the mold opening and closing mechanisms 500 are arranged in a circle at intervals on the disk 300a. Each single-color mold 400 is assembled to a corresponding mold opening and closing mechanism 500, and a corresponding mold opening and closing mechanism 500 drives the corresponding single-color mold 400 to perform mold opening and closing movements. The injection molding machine 200 is located beside the disk 300a. Preferably, the injection molding machine 200 is located on the left side of the disk 300a, but it is not limited thereto. The rotary drive mechanism 600 is located below the disk 300a and selectively drives any one of the single-color molds 400 on the disk 300a to rotate to a position directly opposite to the injection molding machine 200, and the injection molding machine 200 presses and injects the single-color mold 400 directly opposite to it. That is to say, the injection molding machine 200 can only press and inject one single-color mold 400 directly opposite to it each time. The state is shown in Figure 1 as shown. Specifically, the fully automatic disk rotary single-color injection molding production line 1 of the present invention further includes a demolding power mechanism 700 for providing demolding power to the single-color mold 400 and a disk positioning mechanism 800 for precisely positioning the disk 300a. The demolding power mechanism 700 and the disk positioning mechanism 800 are each located directly below the disk 300a, so as to provide demolding power to the single-color mold 400 by means of the demolding power mechanism 700, so that the product after the single-color mold 400 is opened is ejected from the lower mold 410 in the single-color mold 400 and remains on the upper mold 420, thus facilitating the removal operation of the product; and by means of the disk positioning mechanism 800, any one of the single-color molds 400 on the disk 300a can be precisely aligned with the injection molding machine 200, thereby improving the reliability of the injection molding machine 200 for pressing and injecting the single-color mold 400; it can be understood that, according to actual needs, one or both of the demolding power mechanism 700 and the disk positioning mechanism 800 can be deleted. In addition, the number of single-color molds 400 can also be three, four, five, six or seven, etc., so it is not limited thereto. More specifically, as follows:

[0025] As Figure 2 shown, the injection molding machine 200 includes a frame portion 200a located beside the turntable 300a, a lifting seat 200b assembled on the frame portion 200a, a lifting drive mechanism 200c assembled on the frame portion 200a and used to drive the lifting seat 200b to move up and down, an injection part 200d assembled on the lifting seat 200b and arranged along the radial direction of the turntable 300a, and a die pressing part 200e located between the frame portion 200a and the turntable 300a along the radial direction of the turntable 300a. The rotary drive mechanism 600 selectively drives any one of the single-color molds 400 on the turntable 300a to rotate to a position facing the die pressing part 200e, and the injection part 200d injects plastic into the single-color mold 400 pressed by the die pressing part 200e in cooperation with the lifting drive mechanism 200c; therefore, with the cooperation of the lifting seat 200b and the lifting drive mechanism 200c, the height of the injection part 200d can be flexibly adjusted, so as to more reliably match single-color molds 400 of different heights, and thus the applicable range is wider. Specifically, in Figure 3 and Figure 4Among them, the die pressing part 200e includes a die pressing oil cylinder 210, a lower base 220, an upper die pressing frame 230, upper and lower braces 240, a tightening and loosening connecting member 250, and a wedge-shaped slider 260 that can slide along the left-right direction (i.e., the direction indicated by arrow A and the opposite direction) of the base 220. The lower end of the die pressing frame 230 is hinged to the base 220 so that the die pressing frame 230 and the base 220 together form a hinge center line C. Preferably, the hinge center line C is arranged along the front-rear direction (i.e., the direction indicated by arrow B and the opposite direction) of the base 220; on the left side of the upper end of the die pressing frame 230, a left extension bracket 231 extends leftward, and on the right side of the upper end of the die pressing frame 230, a right extension bracket 232 extends rightward. Preferably, the left extension bracket 231, the die pressing frame 230, and the right extension bracket 232 together enclose a "T" shape, but it is not limited thereto. The die pressing oil cylinder 210 is assembled to the right extension bracket 232, and the right extension bracket 232 provides an installation and fixing function for the die pressing oil cylinder 210; the output end 211 of the die pressing oil cylinder 210 is arranged downward. The upper end of the upper and lower braces 240 is assembled and connected to the left extension bracket 231 so that the upper and lower braces 240 and the left extension bracket 231 are fixed together; preferably, the assembly connection between the upper end of the upper and lower braces 240 and the left extension bracket 231 is detachable. For example, screws or a combination of bolts and nuts are used to make the assembly connection between the upper and lower braces 240 and the left extension bracket 231 detachable; of course, according to actual needs, the assembly connection between the upper end of the upper and lower braces 240 and the left extension bracket 231 can also be made non-detachable, such as by using fixing methods such as welding, so it is not limited thereto. The lower end of the upper and lower braces 240 is stacked and abutted against the wedge-shaped slider 260 so that the wedge-shaped slider 260 is in a top-pushing fit with the lower end of the upper and lower braces 240 in the up-down direction of the base 220. The tightening and loosening connecting member 250 is disposed in the up-down direction through the upper and lower braces 240 and the base 220 and selectively locks the upper and lower braces 240 and the base 220 so that the wedge-shaped slider 260 is clamped between the upper and lower braces 240 and the base 220 for supporting the upper and lower braces 240. Therefore, during fine adjustment, first loosen the tightening and loosening connecting member 250, and by means of the left-right sliding of the wedge-shaped slider 260, the corresponding die pressing frame 230 is interlocked to make an appropriate pivotal fine adjustment around the hinge center line C between the die pressing frame 230 and the base 220; for example, in Figure 5a Among them, when the wedge-shaped slider 260 slides to the right, the sliding wedge-shaped slider 260 will push the die pressing frame 230 upward to make a pivotal fine adjustment forward and downward around the hinge center line C; in Figure 5bIn [description], when the wedge-shaped slider 260 slides leftward, the sliding wedge-shaped slider 260 will release the pushing against the die carrier 230 downward, causing the die carrier 230 to pivot and fine-tune backward and upward around the hinge center line C. Therefore, the die pressing oil cylinder 210 is made to fit perfectly with the injection mold, thus ensuring the quality of the finished product. For example, the lifting drive mechanism 200c adopts a combination of a motor, a lead screw, and a nut to precisely control the up-and-down movement of the lifting seat 200b. Of course, it can also directly adopt a drive such as an oil cylinder, etc., and this is not limited thereto; in addition, the rotary drive mechanism 600 adopts a combination of a motor, an annular rack, and a gear. The annular rack is installed on the disk 300a and their center lines coincide, and the gear is installed at the output end of the motor and meshes with the annular rack, but this is not limited thereto. More specifically, as follows:

[0026] In Figures 3 to 5b [description], a support seat 280 for supporting the single-color mold 400 is assembled on the machine base 220. The support seat 280 is aligned with the die pressing oil cylinder 210 in the up-and-down direction, but this is not limited thereto.

[0027] As Figures 3 to 5bAs shown, the die pressing part 200e further includes a wedge-shaped cushion block 271, a lateral connection block 272, a first fastener 273, a second fastener 274 and a linkage screw 275. The wedge-shaped cushion block 271 is fixed to the machine base 220. For example, the wedge-shaped cushion block 271 is fixed to the machine base 220 by screws. Of course, according to actual needs, a welding fixing method can be adopted, so this is not limited thereto; the lateral connection block 272 is located on the left and right sides of both the lower end of the upper and lower support feet 240 and the wedge-shaped cushion block 271. Of course, according to actual needs, the lateral connection block 272 can be located on the left or right side of both the lower end of the upper and lower support feet 240 and the wedge-shaped cushion block 271, but this is not limited thereto; the first fastener 273 passes through the upper end of the lateral connection block 272 with a clearance fit in the left-right direction of the machine base 220 and is threadedly connected to the lower end of the upper and lower support feet 240, so that there is a clearance between the first fastener 273 and the lateral connection block 272 in the up-down direction of the machine base 220, so that the first fastener 273 and the lateral connection block 272 can have relative displacement during the process of the upper and lower support feet 240 being jacked up or lowered by the wedge-shaped slider 260; the second fastener 274 passes through the lower end of the lateral connection block 272 with a clearance fit in the left-right direction of the machine base 220 and is threadedly connected to the wedge-shaped cushion block 271, so that there is a clearance between the second fastener 274 and the lateral connection block 272 in the up-down direction of the machine base 220, so that the second fastener 274 and the lateral connection block 272 can have relative displacement during the process of the upper and lower support feet 240 being jacked up or lowered by the wedge-shaped slider 260; the wedge-shaped slider 260 is stacked above the wedge-shaped cushion block 271, so that the wedge-shaped slider 260 is clamped between the wedge-shaped cushion block 271 and the upper and lower support feet 240; the linkage screw 275 is rotatably disposed in the lateral connection block 272 in the left-right direction of the machine base 220 and is linked to the wedge-shaped slider 260; therefore, during the process of the linkage screw 275 linking the wedge-shaped slider 260 to slide, the wedge-shaped slider 260 slides on the wedge-shaped cushion block 271 and is jacked up or lowered, so as to correspondingly link the die pressing frame 230 to perform adaptive pivot fine adjustment around the hinge center line C between the die pressing frame 230 and the machine base 220; for example, in Figure 5a , the wedge-shaped slider 260 slides to the right on the wedge-shaped cushion block 271 and is jacked up, thereby linking the die pressing frame 230 to perform a forward and downward pivot fine adjustment around the hinge center line C between the die pressing frame 230 and the machine base 220; in Figure 5bIn it, the wedge-shaped slider 260 slides leftward on the wedge-shaped cushion block 271 and is thus lowered downward, so as to drive the die pressing frame 230 to perform a fine pivot adjustment in the upper rear direction around the hinge center line C between the die pressing frame 230 and the machine base 220. Specifically, the upper and lower support feet 240, the wedge-shaped cushion block 271, the wedge-shaped slider 260, the lateral connection block 272, the first fastener 273, the second fastener 274 and the linkage screw 275 together form a combined structure 200e1. The combined structure 200e1 is arranged in an aligned manner with a front-to-back interval on the left extension bracket 231, ensuring the smoothness of the fine pivot adjustment of the die pressing frame 230 around the hinge center line C on the one hand, and increasing the stability of the support for the die pressing frame 230 on the other hand.

[0028] As Figure 3 shown, the die pressing frame 230 includes a front and a rear spaced and aligned footrest 233 and a top beam 234 connected between the footrests 233. The left extension bracket 231 is formed on the left side of the top beam 234, and the right extension bracket 232 is formed on the right side of the top beam 234. The front footrest 233 and the rear footrest 233 are each hinged to the machine base 220. Preferably, the hinge center line C between the front footrest 233 and the machine base 220 coincides with the hinge center line C between the rear footrest 233 and the machine base 220, as shown in Figure 3 shown, to ensure the smoothness of the pivot of the die pressing frame 230 relative to the machine base 220 around the hinge center line C. At the same time, the left lateral connection block 272 and the right lateral connection block 272 are each penetrated by a linkage screw 275. The linkage screw 275 at the left lateral connection block 272 is in a pushing fit with the left side of the wedge-shaped slider 260 to push the wedge-shaped slider 260 to slide rightward by means of the left linkage screw 275; the linkage screw 275 at the right lateral connection block 272 is in a pushing fit with the right side of the wedge-shaped slider 260 to push the wedge-shaped slider 260 to slide leftward by means of the right linkage screw 275.

[0029] As Figures 3 to 5b shown, the tightening and loosening connecting member 250 is also penetrated in the wedge-shaped cushion block 271. Preferably, the tightening and loosening connecting member 250 is a screw, which facilitates the tightening and loosening operation of the tightening and loosening connecting member 250 and also facilitates connecting the upper and lower support feet 240, the wedge-shaped cushion block 271 and the machine base 220 together; and the first fastener 273 and the second fastener 274 are each screws, so that the first fastener 273 and the second fastener 274 can more conveniently and quickly connect the lateral connection block 272 to the upper and lower support feet 240 and the wedge-shaped cushion block 271.

[0030] It should be noted that although the drawings show that the sliding of the wedge-shaped slider 260 is pushed and slid by the operator's rotation operation of the left or right linkage screw 275, of course, it can also be achieved by other means such as applying force with tools to make the wedge-shaped slider 260 slide, etc., so it is not limited to the above examples.

[0031] See also Figures 6 to 11 The combined center body 100 includes a hollow shaft body 10, a rotary joint 20, a sleeve 30 sealed and fitted on the shaft body 10, and an electric box turntable 60 fixed to the upper end of the sleeve 30 and surrounding the rotary joint 20. The lower end of the shaft body 10 is assembled on the base body 300b, and the base body 300b provides support for the shaft body 10. The disc 300a is fitted on the shaft body 10 and is located below the sleeve 30. The shaft sleeve 30 and the shaft body 10 jointly enclose a water outflow channel 41, a water return channel 42, an oil outflow channel 43 and an oil return channel 44 which are separated from each other. The shaft sleeve 30 is linked with the disc 300a through the connecting bracket 90a, so that the shaft sleeve 30 rotates around the shaft body 10 with the disc 300a, that is, the rotating disc 300a can drive the shaft sleeve 30 to rotate around the shaft body 10 through the connecting bracket 90a; the shaft sleeve 30 is provided with a water outflow channel 41, a water return channel 42, an oil outflow channel 43 and an oil return channel 44 which are separated from each other. The water outflow joint 31 connected to the outflow channel 41, the water return joint 32 connected to the water return channel 42, the oil outflow joint 33 connected to the oil outflow channel 43, and the oil return joint 34 connected to the oil return channel 44, with the help of the cooperation of the water outflow joint 31 and the water return joint 32, realize the back-and-forth circulation of water. Similarly, with the help of the cooperation of the oil outflow joint 33 and the oil return joint 34, realize the back-and-forth circulation of oil. The hollowness of the shaft body 10 forms a central channel 11 which axially penetrates the shaft body 10. The shaft body 10 is also provided with a water input channel 12 connected to the water outflow channel 41, an oil input channel 13 connected to the oil outflow channel 43, a water output channel 14 connected to the water return channel 42, and an oil output channel 15 connected to the oil return channel 44, so as to facilitate the assembly of the external input water pipe 71 on the water input channel 12, the assembly of the external input oil pipe 73 on the oil input channel 13, the assembly of the external return water pipe 72 on the water output channel 14, and the assembly of the external return oil pipe 74 on the oil output channel 15. The rotary joint 20 is assembled on the upper end of the shaft body 10, and the shaft body 10 provides support for the rotary joint 20; the rotary joint 20 is provided with a ventilation channel 21 and a power channel 22 that are connected to the central channel 11 and separated from each other, so that the external air pipe 75 can be inserted from the bottom of the central channel 11 and then assembled at the ventilation channel 21, and the external cable 80 can be inserted from the bottom of the central channel 11 and then pass out from the power channel 22 of the rotary joint 20 to meet the assembly needs of the controller in the electric box turntable 60. Since the electric box turntable 60 is fixed to the upper end of the shaft sleeve 30, the electric box turntable 60, the shaft sleeve 30 and the disc 300a can rotate together around the center line of the shaft body 10, so that the controller installed in the electric box turntable 60 can rotate with the electric box turntable 60, and then with the cooperation of the rotary joint 20, the entanglement of the external cable 80 and the external air pipe 75 can be avoided.

[0032] Among them, in the combined centering body 100, since the sleeve 30 is sleeved on the shaft body 10 in a sealed fit and encloses the water outflow channels 41, water return channels 42, oil outflow channels 43, and oil return channels 44 that are separated from each other with the shaft body 10, and the sleeve 30 can rotate around the shaft body 10 and is provided with a water outflow joint 31 communicating with the water outflow channel 41, a water return joint 32 communicating with the water return channel 42, an oil outflow joint 33 communicating with the oil outflow channel 43, and an oil return joint 34 communicating with the oil return channel 44; and the shaft body 10 is also provided with a water input channel 12 communicating with the water outflow channel 41, an oil input channel 13 communicating with the oil outflow channel 43, a water output channel 14 communicating with the water return channel 42, and an oil output channel 15 communicating with the oil return channel 44, the rotary joint 20 is assembled at the upper end of the shaft body 10 and is provided with an air vent channel 21 and an electric conduction channel 22 that are butted and communicated with the central channel 11 and are separated from each other; such a design arranges the air venting, water passing, electric conduction, and oil passing in a centralized manner, so that the whole is simple and convenient for maintenance. At the same time, by means of the rotation of the sleeve 30 and the rotary joint 20 relative to the shaft body 10, the external input water pipe 71, external return water pipe 72, external input oil pipe 73, external return oil pipe 74, external air pipe 75, and external cable 80 can be prevented from being wound. It should be noted that since the specific structure of the rotary joint 20 is well known in the art, it will not be described in detail here. More specifically, as follows:

[0033] Such as Figure 8 , Figure 9 and Figure 11As shown, the bushing 30 includes a first bushing 30a and a second bushing 30b. The first bushing 30a and the shaft body 10 jointly enclose a water outflow channel 41 and a water return channel 42, and the second bushing 30b and the shaft body 10 jointly enclose an oil outflow channel 43 and an oil return channel 44; the water outflow joint 31 and the water return joint 32 are located on the first bushing 30a, and the oil outflow joint 33 and the oil return joint 34 are located on the second bushing 30b; the purpose of this design is to facilitate the processing of the water outflow channel 41 and the water return channel 42 on the first bushing 30a, and the processing of the oil outflow channel 43 and the oil return channel 44 on the bushing 30, and to ensure the convenience and sealing reliability of the assembly operation between the bushing 30 and the shaft body 10; in addition, the first bushing 30a is linked to the disk 300a through a connecting bracket 90a. Specifically, the combined central body 100 further includes an intermediate connecting ring 50. One end of the intermediate connecting ring 50 is detachably sleeved and fixed to the first bushing 30a by means of a first locking member 51, and the other end of the intermediate connecting ring 50 is detachably sleeved and fixed to the second bushing 50b by means of a second locking member 52. The purpose of this design is to facilitate the installation and removal operations of the first bushing 30a and the second bushing 30b on the shaft body 10 respectively, and also to connect the first bushing 30a and the second bushing 30b into one body through the intermediate connecting ring 50; preferably, the second bushing 30b is located above the first bushing 30a, so that the water outflow channel 41 and the water return channel 42 are respectively located below the oil outflow channel 43 and the oil return channel 44, effectively avoiding the leakage of water caused by water vapor generated during the cooling process and being misidentified as oil leakage, so that the oil and water can be fully identified, and thus the maintenance is more convenient; for example, the first locking member 51 and the second locking member 52 are each a screw, and they are arranged in rows in the circumferential direction of the intermediate connecting ring 50. The purpose of this arrangement is to increase the reliability of the fixation of the intermediate connecting ring 50 to the first bushing 30a and the second bushing 30b respectively, but not limited thereto.

[0034] As Figure 8 , Figure 9 and Figure 11As shown, the inner side wall 351 of the first bushing 30a has a first convex ring 352, a second convex ring 353, and a third convex ring 354 that protrude towards the shaft body 10 and are tightly sleeved with the shaft body 10. The first convex ring 352, the second convex ring 353, and the third convex ring 354 are arranged at intervals in sequence along the upward direction of the shaft body 10. And a sealing ring 355 is assembled between each of the first convex ring 352, the second convex ring 353, and the third convex ring 354 and the shaft body 10. Such a design can more effectively ensure the sealing cooperation reliability and rotation smoothness between the first bushing 30a and the shaft body 10; the water outflow channel 41 is located between the first convex ring 352 and the second convex ring 353, and the water return channel 42 is located between the second convex ring 353 and the third convex ring 354; of course, according to actual needs, the water return channel 42 can be located between the first convex ring 352 and the second convex ring 353. Correspondingly, the water outflow channel 41 is located between the second convex ring 353 and the third convex ring 354, so this is not limited thereto. At the same time, a pair of upper and lower rotary bearings 356 are sleeved between the inner side wall 351 of the first bushing 30a and the shaft body 10. The upper rotary bearing 356 is located above the third convex ring 354 and axially abuts against the third convex ring 354, and the lower rotary bearing 356 is located below the first convex ring 352 and axially abuts against the first convex ring 352 to increase the smoothness of the rotation of the first bushing 30a around the shaft body 10; and with the help of the intermediate connecting ring 50, it is convenient for the installation and disassembly operations of the upper and lower rotary bearings 356 on the first bushing 30a and the shaft body 10.

[0035] As Figure 8 , Figure 9 and Figure 11As shown, the inner wall 361 of the second bushing 30b has a first annular platform 362, a second annular platform 363, and a third annular platform 364 that protrude towards the shaft body 10 and are tightly sleeved with the shaft body 10. The first annular platform 362, the second annular platform 363, and the third annular platform 364 are arranged at intervals in the direction from bottom to top along the shaft body 10. And a sealing ring 365 is assembled between each of the first annular platform 362, the second annular platform 363, and the third annular platform 364 and the shaft body 10. Such a design can more effectively ensure the sealing cooperation reliability and rotation smoothness between the second bushing 30b and the shaft body 10; the oil outflow channel 43 is located between the first annular platform 362 and the second annular platform 363, and the oil return channel 44 is located between the second annular platform 363 and the third annular platform 364; of course, according to actual needs, the oil return channel 44 can be located between the first annular platform 362 and the second annular platform 363, and correspondingly, the oil outflow channel 43 is located between the second annular platform 363 and the third annular platform 364, so it is not limited to this. At the same time, rotating bearings 366 arranged one above the other are sleeved between the inner wall 361 of the second bushing 30b and the shaft body 10. The upper rotating bearing 366 is located above the third annular platform 364 and axially abuts against the third annular platform 364, and the lower rotating bearing 366 is located below the first annular platform 362 and axially abuts against the first annular platform 362 to increase the rotation smoothness of the second bushing 30b around the shaft body 10; and with the help of the intermediate connecting ring 50, it is convenient for the upper and lower rotating bearings 366 to be assembled and disassembled on the second bushing 30b and the shaft body 10.

[0036] As Figure 8 , Figure 9 and Figure 11As shown in the figure, for ease of assembly and disassembly operations, the shaft body 10 includes a lower shaft body 10a and an upper shaft body 10b that are axially fixed. Preferably, the lower shaft body 10a and the upper shaft body 10b are fixed together by screws to facilitate operations between the lower shaft body 10a and the upper shaft body 10b; and the screws are axially disposed through the lower shaft body 10a and the upper shaft body 10b along the axis of the shaft body 10, which can prevent the screws from protruding radially from the shaft body 10 and increasing the occupied space, but not limited thereto. The central channel 11 runs through the lower shaft body 10a and the upper shaft body 10b, and the central channel 11 of the lower shaft body 10a is larger than the central channel 11 of the upper shaft body 10b, so as to facilitate the external input water pipe 71, the external return water pipe 72, the external input oil pipe 73, the external return oil pipe 74, the external air pipe 75 and the external cable 80 to pass through the central channel 11 of the lower shaft body 10a and then be assembled at the corresponding positions; the water input channel 12, the oil input channel 13, the water output channel 14 and the oil output channel 15 run downward through the upper shaft body 10b and are located within the central channel 11 of the lower shaft body 10a, such an arrangement is more convenient for the assembly operations between the external input water pipe 71, the external return water pipe 72, the external input oil pipe 73 and the external return oil pipe 74 and the upper shaft body 10b respectively. When the shaft body 10 includes the lower shaft body 10a and the upper shaft body 10b, the disc 300a is sleeved on the lower shaft body 10a at this time. Specifically, an assembled bearing 90b is sleeved on the lower shaft body 10a, so that the disc 300a can rotate around the shaft body 10 more flexibly and smoothly; it can be understood that when the shaft body 10 is not divided into the lower shaft body 10a and the upper shaft body 10b, the disc 300a is sleeved on the shaft body 10 by an assembled bearing 90b at this time, so it is not limited thereto.

[0037] It should be noted that in Figure 8 , the flow process of the external water body is as follows: the water body enters from the external input water pipe 71, and then flows through the water input channel 12, the water outflow channel 41, the water outflow joint 31, the water return joint 32, the water return channel 42 and the water output channel 14 in sequence, and then flows out through the external return water pipe 72; similarly, in Figure 9 , the flow process of the external oil liquid is as follows: the oil liquid enters from the external input oil pipe 73, and then flows through the oil input channel 13, the oil outflow channel 431, the oil outflow joint 33, the oil return joint 34, the oil return channel 44 and the oil output channel 15 in sequence, and then flows out through the external return oil pipe 74.

[0038] Please refer to Figures 12 to 14The mold opening and closing mechanism 500 comprises a lower mold base body 510 for assembling and connecting the lower mold 410 in the single-color mold 400, an upper mold base body 520 for assembling and connecting the upper mold 420 in the single-color mold 400, an upper and lower slide frame 530 located above the lower mold base body 510, a lifting driver 540 for driving the upper and lower slide frames 530 to move up and down, and a flip driver 550 for driving the upper mold base body 520 to flip relative to the upper and lower slide frames 530. The lifting driver 540 is located beside the lower mold base body 510 and is assembled on the disc 300a, and the disc 300a provides support for the lifting driver 540; the output end 541 of the lifting driver 540 is arranged upward to facilitate the assembly operation between the output end 541 of the lifting driver 540 and the upper and lower slide frames 530. The upper and lower slides 530 are located above the lower die base 510 and are assembled and connected to the output end 541 of the lifting driver 540, so that the lifting driver 540 can drive the upper and lower slides 530 to move up and down. The upper die base 520 is located directly above the lower die base 510 and is pivotally connected to the upper and lower slides 530. Preferably, the two opposite side walls 521 (e.g. Figures 12 to 14 The left and right side walls 521 shown but not limited thereto are each pivotally connected to the upper and lower slides 530, so that the upper mold base 520 can more reliably perform a flipping motion around the pivoting center line of the upper mold base 520 and the upper and lower slides 530. The flipping driver 550 is assembled on the upper and lower slides 530, and the upper and lower slides 530 provide support for the flipping driver 550, so that the flipping driver 550 can follow the upper and lower slides 530 to perform an up and down lifting motion; the output end 550b of the flipping driver 550 is assembled and connected to the upper mold base 520. Therefore, when the lifting drive 540 drives the upper and lower slide frames 530 together with the flipping drive 550 and the upper mold base 520 directly opposite to the lower mold base 510 to slide upward to a preset distance, the flipping drive 550 can drive the clamping side 522 of the upper mold base 520 to flip outward to a position offset from the lower mold base 510. Preferably, the flipping drive 550 can drive the clamping side 522 of the upper mold base 520 to flip outward to a position perpendicular to the lower mold base 510. Figure 14 As shown; of course, according to actual needs, the flip driver 550 can also drive the mold closing side 522 of the upper mold base 520 to flip to a position greater than 90 degrees or slightly less than 90 degrees relative to the lower mold base 510, so it is not limited to this. It should be noted that the aforementioned preset distance is set by ordinary technicians in this field according to actual needs, as long as it ensures that the lower mold base 510 does not collide and interfere with the lower mold base 510 during the process in which the flip driver 550 drives the mold closing side 522 of the upper mold base 520 to flip outward to a position offset from the lower mold base 510.

[0039] When the lifting driver 540 drives the upper and lower slide frames 530 together with the flip driver 550 and the upper die base 520 facing the lower die base 510 to slide upward to a preset distance, the upper die base 520 and the lower die base 510 are separated from each other, providing space for the upper die base 520 to flip relative to the lower die base 510; at this time, the flip driver 550 can drive the mold closing side 522 of the upper die base 520 to flip outward to a position staggered from the lower die base 510, so that the upper die base 520 at this position faces the operator, so that it is convenient for the operator to take out the product at the upper die 420 installed on the upper die base 520, and it is also convenient for the upper die 420 to be assembled and disassembled at the upper die base 520, as well as daily maintenance and servicing operations. It should be noted that since the upper die 420 is assembled at the upper die base 520, the upper die 420 is lifted and lowered together with the upper die base 520. More specifically, as follows:

[0040] like Figures 12 to 14As shown, the upper and lower carriage 530 includes a first side leg 531, a second side leg 532, and a cross beam 533 connecting the first side leg 531 and the second side leg 532. The upper die base body 520 is located within the space 534 sandwiched between the first side leg 531 and the second side leg 532. One of the opposite side walls 521 of the upper die base body 520 is pivotally connected to the first side leg 531, and the other of the opposite side walls 521 of the upper die base body 520 is pivotally connected to the second side leg 532, which increases the connection strength between the upper and lower carriage 530 and the upper die base body 520 and ensures the smooth and reliable flipping of the upper die base body 520; the flipping drive 550 is assembled at the cross beam 533, and the cross beam 533 provides a supporting effect on the flipping drive 550, and also simplifies the reasonable and compact layout of the flipping drive 550 and the upper die base body 520 at the upper and lower carriage 530. Specifically, the flipping drive 550 includes a cylinder body 550a and a telescopic rod 550b that moves telescopically relative to the cylinder body 550a. The cylinder body 550a is hinged to the cross beam 533, and the telescopic rod 550b is hinged to the upper die base body 520. The telescopic rod 550b forms the output end of the flipping drive 550 to simplify the structure of the flipping drive 550 for driving the upper die base body 520 to flip; at the same time, the first side leg 531, the second side leg 532, and the cross beam 533 together enclose a "U" shape to make the structure of the upper and lower carriage 530 reasonable and compact; in addition, each of the first side leg 531 and the second side leg 532 corresponds to a lifting drive 540. The first side leg 531 is assembled and connected to the output end 41 of the lifting drive 540 corresponding thereto, and the second side leg 532 is assembled and connected to the output end 541 of the lifting drive 540 corresponding thereto, which makes the upper and lower carriage 530 receive better support strength from the lifting drive 540, so that the up and down lifting of the upper and lower carriage 530 is more stable and reliable, but not limited thereto. For example, the lifting drive 540 is a cylinder, and when large power is required, an oil cylinder or other structures can be selected, so it is not limited thereto. To make the up and down lifting of the upper and lower carriage 530 smoother, the mold opening and closing mechanism 500 further includes a lifting guide assembly 560. Preferably, the lifting guide assembly 560 is respectively arranged on both sides of the flipping drive 550 opposite to each other to improve the smoothness of the up and down lifting of the upper and lower carriage 530; specifically, the lifting guide assembly 560 includes a lifting guide rod 561 and a lifting guide sleeve 562. The lifting guide rod 561 is assembled on the disk 300a, and the lifting guide sleeve 562 is assembled on the cross beam 533. The lifting guide rod 561 is telescopically disposed in the lifting guide sleeve 562; of course, according to actual needs, the lifting guide rod 561 can be assembled on the cross beam 533 and the lifting guide sleeve 562 can be assembled on the disk 300a, and the purpose of lifting guidance can also be achieved, but not limited thereto.For the convenience of the disassembly and assembly operations between the lower die base body 510 and between the lower die base body 510 and the lower die 410, as well as their daily maintenance and servicing, the mold opening and closing mechanism 500 further includes a horizontal driver 570 installed on the disk 300a and used to drive the lower die base body 510 to perform horizontal sliding. The output end 571 of the horizontal driver 570 is assembled and connected to the lower die base body 510, so as to drive the lower die base body 510 to slide forward and be misaligned relative to the upper and lower sliding frames 530 through the horizontal driver 570, thereby avoiding obstacles to the operations of operators caused by components such as the upper and lower sliding frames 530, the upper die base body 520, and the upper die 420 thereon. For example, the horizontal driver 570 is a cylinder. Of course, it can be selected as an oil cylinder or other drivers according to actual needs, so it is not limited thereto.

[0041] Combined with the accompanying drawings, the working principle of the fully automatic disk rotary single-color injection molding production line 1 of the present invention will be described: During the process of the rotary drive mechanism 600 driving any single-color mold 400 on the disk 300a to rotate to a position directly opposite to the injection molding machine 200, with the aid of the disk positioning mechanism 800, any single-color mold 400 on the disk 300a is accurately rotated to a position directly opposite to the injection molding machine 200, and the injection molding machine 200 performs mold pressing and injection molding on the single-color mold 400 directly opposite to the injection molding machine 200; while the single-color mold 400 far from the injection molding machine 200 is first pressure-maintained and then mold-opened by the mold opening and closing mechanism 500 to meet the needs of product molding and taking out.

[0042] Compared with the prior art, since the combined central body 100 is arranged vertically and its lower end is assembled on the base body 300b, the base body 300b provides support for the combined central body 100; and since the disk 300a is located directly above the base body 300b and sleeved on the combined central body 100, the disk 300a can rotate around the central axis of the combined central body 100; all the mold opening and closing mechanisms 500 are assembled on the disk 300a and arranged in a circle at intervals on the disk 300a, each single-color mold 400 is assembled on a corresponding mold opening and closing mechanism 500, and the injection molding machine 200 is located beside the disk 300a; the rotary drive mechanism 600 is located below the disk 300a and selectively drives any single-color mold 400 on the disk 300a to rotate to a position directly opposite to the injection molding machine 200, and the injection molding machine 200 performs mold pressing and injection molding on the single-color mold 400 directly opposite to the injection molding machine 200, thereby realizing injection molding of any single-color mold 400 on the disk 300a by the same injection molding machine 200, so as to improve the degree of automation and production efficiency; at the same time, with the cooperation of the mold opening and closing mechanism 500, each single-color mold 400 on the disk 300a can perform automatic mold opening and closing movements, so it is more convenient to take out the products.

[0043] It should be noted that, in order to further improve the automation level, the fully automatic disk rotary single-color injection molding production line 1 of the present invention is preferably electrically connected to an existing controller, and the controller controls the coordinated work among various parts of the fully automatic disk rotary single-color injection molding production line 1 of the present invention.

[0044] The above-disclosed are only the preferred examples of the present invention, and the scope of the rights of the present invention cannot be limited thereby. Therefore, all equivalent changes made according to the claims of the present invention fall within the scope covered by the present invention.

Claims

1. A fully automatic disk-rotating single-color injection molding production line, characterized in that, It includes a combined central body, an injection molding machine, a disk, a base body, a plurality of single-color molds, a mold opening and closing mechanism having the same number as the single-color molds and used to drive the single-color molds to perform mold opening and closing movements, and a rotation driving mechanism used to drive the disk to rotate. The combined central body is arranged vertically, and its lower end is assembled to the base body. The disk is located directly above the base body and sleeved on the combined central body. The disk can rotate around the central axis of the combined central body. All the mold opening and closing mechanisms are assembled on the disk and arranged in a circle at intervals on the disk. Each single-color mold is assembled to a corresponding mold opening and closing mechanism. The injection molding machine is located beside the disk. The rotation driving mechanism is located below the disk and selectively drives any one of the single-color molds on the disk to rotate to a position directly opposite to the injection molding machine, and the injection molding machine presses and injects the single-color mold. Among them, the injection molding machine includes a frame part located beside the disk, a lifting seat assembled on the frame part, a lifting driving mechanism assembled on the frame part and used to drive the lifting seat to move up and down, an injection part assembled on the lifting seat and arranged radially along the disk, and a pressing mold part located between the frame part and the disk radially along the disk. The rotation driving mechanism selectively drives any one of the single-color molds on the disk to rotate to a position directly opposite to the pressing mold part, and the injection part injects the single-color mold pressed by the pressing mold part in cooperation with the lifting driving mechanism. The pressing mold part includes a pressing mold oil cylinder, a lower machine base, an upper pressing mold frame, upper and lower braces, a tightening and loosening connecting piece, and a wedge-shaped slider that can slide in the left-right direction of the machine base. The lower end of the pressing mold frame is hinged to the machine base. The left side of the upper end of the pressing mold frame extends leftward to form a left extension bracket, and the right side of the upper end of the pressing mold frame extends rightward to form a right extension bracket. The pressing mold oil cylinder is assembled on the right extension bracket, and the output end of the pressing mold oil cylinder is arranged downward. The upper end of the upper and lower braces is assembled and connected to the left extension bracket, and the lower end of the upper and lower braces is stacked and abutted against the wedge-shaped slider. The tightening and loosening connecting piece is disposed vertically through the upper and lower braces and the machine base and selectively locks the upper and lower braces and the machine base, so that the wedge-shaped slider is clamped between the upper and lower braces and the machine base. When the tightening and loosening connecting piece is loosened, the pressing mold frame is correspondingly linked to pivot and fine-tune around the hinge center line between the pressing mold frame and the machine base by means of the left-right sliding of the wedge-shaped slider.

2. The full-automatic disc rotary single-color injection molding production line according to claim 1, wherein, It further includes a demolding power mechanism for providing demolding power to the single-color mold and a disk positioning mechanism for precisely positioning the disk. The demolding power mechanism and the disk positioning mechanism are each located directly below the disk.

3. The fully automatic disk rotary single-color injection molding production line according to claim 1, wherein The combined central body includes a hollow shaft body, a rotary joint, a shaft sleeve sleeved on the shaft body in a sealing fit, and an electric box turntable fixed to the upper end of the shaft sleeve and surrounding the rotary joint from all around. The lower end of the shaft body is assembled on the base body. The disc is sleeved on the shaft body and located below the shaft sleeve. The shaft sleeve and the shaft body jointly define water outflow channels, water return channels, oil outflow channels, and oil return channels that are separated from each other. The shaft sleeve is linked with the disc through a connecting bracket so that the shaft sleeve rotates around the shaft body together with the disc. The shaft sleeve is provided with a water outflow joint communicating with the water outflow channel, a water return joint communicating with the water return channel, an oil outflow joint communicating with the oil outflow channel, and an oil return joint communicating with the oil return channel. The hollow of the shaft body forms a central channel axially penetrating the shaft body. The shaft body is also provided with a water input channel communicating with the water outflow channel, an oil input channel communicating with the oil outflow channel, a water output channel communicating with the water return channel, and an oil output channel communicating with the oil return channel. The rotary joint is assembled at the upper end of the shaft body, and the rotary joint is provided with an air passage and an electric passage that are butted and communicated with the central channel and separated from each other.

4. The fully automatic disk rotary single-color injection molding production line according to claim 3, characterized in that, The combined central body further includes an intermediate connecting ring. The shaft sleeve includes a first shaft sleeve and a second shaft sleeve. The first shaft sleeve and the shaft body jointly define the water outflow channel and the water return channel. The second shaft sleeve and the shaft body jointly define the oil outflow channel and the oil return channel. The water outflow joint and the water return joint are located on the first shaft sleeve. The oil outflow joint and the oil return joint are located on the second shaft sleeve. One end of the intermediate connecting ring is detachably sleeved and fixed to the first shaft sleeve by means of a first locking member. The other end of the intermediate connecting ring is detachably sleeved and fixed to the second shaft sleeve by means of a second locking member. The first shaft sleeve is linked with the disc through the connecting bracket.

5. The full-automatic disk rotary single-color injection molding production line according to claim 4, characterized in that, The inner side wall of the first shaft sleeve has a first convex ring, a second convex ring and a third convex ring that protrude toward the shaft body and are tightly fitted with the shaft body. The first convex ring, the second convex ring and the third convex ring are arranged in sequence from bottom to top along the shaft body, and a sealing ring is installed between the first convex ring, the second convex ring and the third convex ring and the shaft body respectively. One of the water outflow channel and the water return channel is located between the first convex ring and the second convex ring, and the other of the water outflow channel and the water return channel is located between the second convex ring and the third convex ring. A rotating bearing arranged one above and one below is fitted between the inner side wall of the first shaft sleeve and the shaft body. The upper rotating bearing is located above the third convex ring and axially abuts against the third convex ring, and the lower rotating bearing is located below the first convex ring and axially abuts against the first convex ring. The inner side wall of the second sleeve has a first ring platform, a second ring platform and a third ring platform that protrude toward the shaft body and are tightly fitted with the shaft body. The first ring platform, the second ring platform and the third ring platform are arranged in sequence from bottom to top along the shaft body, and a sealing ring is installed between the first ring platform, the second ring platform and the third ring platform and the shaft body respectively. One of the oil outflow channel and the oil return channel is located between the first ring platform and the second ring platform, and the other of the oil outflow channel and the oil return channel is located between the second ring platform and the third ring platform. A rotating bearing arranged one above and one below is fitted between the inner side wall of the second sleeve and the shaft body. The upper rotating bearing is located above the third ring platform and axially abuts against the third ring platform, and the lower rotating bearing is located below the first ring platform and axially abuts against the first ring platform.

6. The fully automatic disk rotary single-color injection molding production line according to claim 1, wherein The camming mechanism comprises a lower mold base body for assembling and connecting the lower mold in the monochrome mold, an upper mold base body for assembling and connecting the upper mold in the monochrome mold, an upper and lower slide frame located above the corresponding lower mold base body, a lifting drive for driving the upper and lower slide frames to lift and lower, and a flipping drive for driving the upper mold base body to flip relative to the upper and lower slide frames, the lifting drive is located beside the lower mold base body and assembled on the disc, the output end of the lifting drive is arranged upward, the upper and lower slide frames are located above the lower mold base body and assembled and connected to the output end of the lifting drive, the upper mold base body is located directly above the lower mold base body and is pivotally connected to the upper and lower slide frames, the flipping drive is assembled on the upper and lower slide frames, and the output end of the flipping drive is assembled and connected to the upper mold base body; when the lifting drive drives the upper and lower slide frames together with the flipping drive and the upper mold base body to slide upward to a preset distance, the flipping drive can drive the closing side of the upper mold base body to flip outward to a position staggered with the lower mold base body.

7. The full-automatic disk-rotating single-color injection molding production line according to claim 6, wherein The upper and lower carriage includes a first side leg, a second side leg, and a cross beam connecting the first side leg and the second side leg. The upper die base body is located in the space sandwiched between the first side leg and the second side leg. One of the opposite side walls of the upper die base body is pivotally connected to the first side leg, and the other of the opposite side walls of the upper die base body is pivotally connected to the second side leg. The flipping drive includes a cylinder body and a telescopic rod that moves telescopically relative to the cylinder body. The cylinder body is hinged to the cross beam, and the telescopic rod is hinged to the upper die base body. The telescopic rod forms the output end of the flipping drive.

8. The fully automatic disk rotary single-color injection molding production line according to claim 7, characterized in that, The mold opening and closing mechanism further includes a lifting guide assembly and a horizontal drive installed on the disk and used to drive the lower die base body to perform horizontal sliding. The output end of the horizontal drive is assembled and connected to the lower die base body. Each of the first side leg and the second side leg corresponds to a lifting drive. The first side leg is assembled and connected to the output end of the lifting drive corresponding to it, and the second side leg is assembled and connected to the output end of the lifting drive corresponding to it. The lifting guide assembly is respectively arranged on both sides beside the flipping drive. The lifting guide assembly includes a lifting guide rod and a lifting guide sleeve. The lifting guide rod is assembled to one of the cross beam and the disk, and the lifting guide sleeve is assembled to the other of the cross beam and the disk. The lifting guide rod is telescopically inserted into the lifting guide sleeve.

Images