CN111873310A - Turntable rotating structure of double-color injection molding machine - Google Patents
Turntable rotating structure of double-color injection molding machine Download PDFInfo
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- CN111873310A CN111873310A CN202010810205.1A CN202010810205A CN111873310A CN 111873310 A CN111873310 A CN 111873310A CN 202010810205 A CN202010810205 A CN 202010810205A CN 111873310 A CN111873310 A CN 111873310A
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- turntable
- injection molding
- molding machine
- rotary table
- cover plate
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 69
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000005299 abrasion Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008093 supporting effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/162—The materials being injected at different moulding stations using means, e.g. mould parts, for transferring an injected part between moulding stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a rotary table rotating structure of a double-color injection molding machine, which comprises a movable mold plate of the injection molding machine, a rear end cover fixing screw, a needle bearing, a bearing retainer ring fixing screw, a rear end cover, a rotary table driving device, a coupler, a transmission device, a ball retainer, balls, a rotary table, a tapered roller retainer, a tapered roller, a cover plate and a cover plate fixing screw. The use of needle bearings at the end of the turntable spindle prevents the turntable from tipping after the mold is suspended. The turntable driving system cooperates with the turntable position detecting device to rotate the turntable according to the program. The rotary structure of the rotary table has small friction force, the rotary table has simple structure, is convenient to control, can realize high-efficiency production, and the rotary table runs under low friction force, thereby prolonging the service life of equipment.
Description
Technical Field
The invention relates to the technical field of injection molding machines, in particular to a rotary table rotating structure of a double-color injection molding machine.
Technical Field
In the injection molding process of the double-color injection molding machine, two sets of independent injection molding units are used to realize the sequential injection molding of two materials, and plastic products comprising two different components or different colors are molded in a double-color mold.
In the production process, the turntable of the double-color injection molding machine is in surface contact with the movable template, sliding friction is carried out between the two contact planes, after long-time work, the movable template and the turntable of the injection molding machine can be damaged, the assembly gap can also be changed, and the precision of opening and closing the mold of the mold is influenced.
In the actual processing process of the double-color product, after the mold is hung on the turntable, a cantilever structure is formed, and under the action of gravity, the center of the turntable is easy to deviate from the rotating center, so that the tilting phenomenon of the turntable is generated.
Disclosure of Invention
The invention aims to provide a rotary table rotary structure of a double-color injection molding machine, which relates to the technical field of injection molding machines, in particular to a rotary table rotary structure of a double-color injection molding machine. The main characteristics are as follows: the sliding friction between the movable template and the rotary table and between the rotary table and the cover plate is changed into rolling friction by the cooperation of the tapered rollers and the balls, so that the friction loss of each contact part is reduced, and the cover plate, the rotary table and the movable template are all provided with annular grooves to ensure that the tapered rollers and the balls can run reliably and stably at specific positions. And a needle bearing is adopted at the tail end of the main shaft of the turntable, so that the turntable is prevented from tilting after the mold is suspended. The rotation of the turntable requires a driving system consisting of a driving device, a coupling, a transmission device and the like, and the turntable rotates according to a program by matching with a turntable position detection device. The rotary structure of the rotary table has small friction force, the rotary table has simple structure, is convenient to control, can realize high-efficiency production, and particularly prolongs the service life of equipment because the rotary table runs under low friction force.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a rotary table rotary structure of a double-color injection molding machine mainly comprises a movable mold plate of the injection molding machine, a rear end cover fixing screw, a needle roller bearing, a bearing retainer ring fixing screw, a rear end cover, a rotary table driving device, a coupler, a transmission device, a ball retainer, balls, a rotary table, a tapered roller retainer, tapered rollers, a cover plate and a cover plate fixing screw, wherein the rotary table driving system comprises a rotary table driving device (a servo motor or a hydraulic motor), a coupler, a transmission device and the like. The turntable driving system is arranged on the upper side of the movable template of the injection molding machine; the turntable driving device is fixed on a movable template of the injection molding machine by using bolts, the power source is controlled by a control system of the injection molding machine to ensure the accurate operation of the injection molding machine, and the control technology of the power source is mature and does not need to be repeated; the turntable driving device and the transmission device are connected together through a coupling; the transmission device is a gear reduction system, and a reduction box body is connected by bolts and is arranged on a movable template of the injection molding machine. The turntable driving device drives the input shaft of the transmission system to rotate, and the power output gear directly drives the turntable to rotate after passing through the transmission device. The outermost side of the turntable is of a large gear structure consisting of a plurality of gear teeth, and the gear teeth on the outermost side of the turntable are meshed with the gear teeth of a power output gear of the transmission device. The inside roller system that is low friction of carousel revolution mechanic, form a toper structure between injection molding machine movable mould board and the carousel left side, be full of round tapered roller between both relative pivoted surfaces, in order to guarantee tapered roller's steady operation, the roller is retrained among the tapered roller holder, the recess that tapered roller motion position was injectd is guaranteed for the round to carousel and tapered roller contact's one side, injection molding machine movable mould board is the toper anchor ring face with tapered roller contact's one side. A set of turntable cover plate ball system is arranged between the right side of the turntable and the cover plate, and the cover plate is fixed on a movable template of the injection molding machine through a cover plate fixing screw. The right side of the turntable and the cover plate are filled with a circle of balls and a ball retainer, the balls surround the groove of the turntable for a circle, and the ball retainer ensures that the positions of the balls are accurate in the rotation process of the turntable. The injection molding machine movable mould plate, the tapered roller, the rotary table, the balls and the cover plate are sequentially contacted, the pretightening force after the contact is adjusted by the injection molding machine movable mould plate and the cover plate through screw connection and gasket adjustment, so that the contact part of each part is ensured to have proper pretightening, and the whole rotary table rotary structure operates under low friction resistance.
Two pairs of needle roller bearings are mounted at the tail end of the main shaft of the rotary table to form a group of bearing combination, so that the bearing supporting capacity is improved. The bearing group is fixedly installed at two ends, and the bearing retainer ring is connected with the turntable through the bearing retainer ring fixing screws to limit the inner ring of the bearing group; the rear end cover is connected with a movable template of the injection molding machine through a rear end cover fixing screw to tightly press the bearing outer ring of the needle bearing set; under the supporting action of the turntable, the conical surface of the turntable is in conical contact with the conical roller and the pressing force provided by the cover plate, so that the turntable can stably run around the axis of the turntable; the needle bearing is used for preventing the turntable from tilting due to hanging the die during operation, and providing a certain supporting force.
The rotating disc rotates with the rotating disc, and the rotating disc is embedded with one conic lining to reduce the wear of the rotating disc. In the turntable structure, all contact surfaces with relative motion can be added with anti-abrasion bushings, and the anti-abrasion bushings can be added on the turntable or the movable template and the cover plate of the injection molding machine.
The turntable rotating structure is provided with a signal detection device on a movable template or a turntable of the injection molding machine when in work, such as: and the magnetic proximity switch detects the position signal of the turntable in real time. After the injection of the material A, the turntable needs to rotate 180 degrees, after the injection of the material B, the turntable needs to rotate 180 degrees in the reverse direction, the signal detection device monitors the position of the turntable, and the control system drives the motor to operate to realize the accurate rotation of the turntable.
The invention provides a rotary table rotating structure of a double-color injection molding machine, which has the advantages that:
(1) the invention provides a turntable rotary structure of a double-color injection molding machine, which ensures that a turntable runs under low friction force, ensures the stability of mold rotation and prolongs the service life of equipment.
(2) The rotating disc rotating structure of the double-color injection molding machine provided by the invention changes the sliding friction between the rotating disc and the movable template of the injection molding machine into rolling friction by adding structures such as the tapered rollers and the balls, and greatly reduces the friction force, so that the whole rotating disc rotating structure operates under low friction resistance.
(3) The needle roller bearing is arranged on the main shaft at the tail end of the rotary table, so that supporting force can be provided for the rotary table, and particularly, after the mold is hung, the parallelism between the male mold and the female mold in the mold opening and closing process is guaranteed.
(4) The contact surfaces of the injection molding machine movable mould plate, the tapered rollers or the balls and the like are provided with the bushings, so that the abrasion to the injection molding machine movable mould plate is reduced, the abrasion of the turntable during rotation is caused to be generated on the bushings, the movable mould plate is protected, and the turntable rotary structure is simple in structure and easy to implement.
Drawings
FIG. 1 is a schematic view of a rotary structure of a rotary table of a two-color injection molding machine according to the present invention.
Fig. 2 is a right side view of a turntable rotating structure of the two-color injection molding machine of the present invention.
In the figure: 1-moving mould plate of injection machine; 2-fixing screws on the rear end cover; 3-needle roller bearings; 4-a bearing retainer ring; 5-fixing screws of bearing retainer rings; 6-rear end cap; 7-a turntable drive; 8-a transmission device; 9-a ball cage; 10-a ball bearing; 11-a turntable; 12-a tapered roller cage; 13-a tapered roller; 14-a cover plate; 15-cover plate fixing screw.
Detailed Description
The present invention is further specifically described below. The following description is only a few embodiments, and any non-inventive substitutions or modifications based on the embodiments of the present invention may be made to other embodiments within the scope of the present invention.
In the description of the present invention, the terms "center", "upper side", "lower side", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not to indicate or imply that the device or element referred to must have a specific orientation, configuration, and operation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the terms "mounted," "connected," and "connected" are used in a generic sense unless explicitly defined or limited otherwise. Examples are: the connection can be a fixed connection, a detachable connection or an integrated connection; may be directly connected or indirectly connected through an intermediate. The driving device may be motor-driven or hydraulically driven. The coupling may be a rigid coupling or a flexible coupling. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
The invention provides a rotary table rotating structure of a double-color injection molding machine, which mainly comprises a movable mold plate 1 of the injection molding machine, a rear end cover fixing screw 2, a needle bearing 3, a bearing retainer 4, a bearing retainer fixing screw 5, a rear end cover 6, a rotary table driving device 7, a coupling (not numbered), a transmission device 8, a ball retainer 9, balls 10, a rotary table 11, a tapered roller retainer 12, a tapered roller 13, a cover plate 14 and a cover plate fixing screw 15 as shown in figures 1 and 2. The turntable driving system comprises a turntable driving device 7 (a servo motor or a hydraulic motor), a coupling, a transmission device 8 and the like. The turntable driving system is arranged on the upper side of the movable template 1 of the injection molding machine; the turntable driving device 7 is fixed on the movable template 1 of the injection molding machine by using bolts, and the control of a power source is ensured to be accurately operated by a control system of the injection molding machine; the turntable driving device 7 and the transmission device 8 are connected together through a coupler; the transmission device 8 is a gear reduction system, and as shown in figure 1, a reduction box body is connected by bolts and is arranged on a movable template 1 of the injection molding machine. The turntable driving device 7 drives the input shaft of the transmission system to rotate, and after passing through the transmission device 8, the power output gear directly drives the turntable to rotate. The outermost side of the rotary table 11 is a ring gear structure which is meshed with a power output gear of the transmission device 8. The inside roller system that is low friction of carousel revolution mechanic, form a toper structure between injection molding machine movable mould board 1 and the carousel 11 left side, be full of round tapered roller 13 between the relative pivoted surface of both, in order to guarantee tapered roller 13's steady operation, the roller is retrained among tapered roller holder 12, carousel 11 guarantees the recess that tapered roller 13 motion position was injectd for the round one side of conical roller 13 contact with carousel 11, the one side of injection molding machine movable mould board 1 and tapered roller 13 contact is the toper anchor ring face. A set of turntable cover plate ball system is arranged between the right side of the turntable 11 and the cover plate 14, and the cover plate 14 is fixed on the movable mould plate 1 of the injection molding machine through a cover plate fixing screw 15. A circle of balls 10 and a ball retainer 9 thereof are filled between the right side of the rotary table 11 and the cover plate 14, the balls 10 surround the groove of the rotary table 11 for a circle, and the ball retainer 9 ensures that the balls 10 are accurate in position in the rotating process of the rotary table 11. The injection molding machine movable mould plate 1, the tapered rollers 13, the rotary table 11, the balls 10 and the cover plate 14 are sequentially contacted, the pre-tightening force after the contact is adjusted by the movable injection molding machine mould plate 1 and the cover plate 14 through screw connection and gasket adjustment, so that the contact parts of all parts are properly pre-tightened, and the whole rotary table rotary structure operates under low friction resistance.
Two pairs of needle roller bearings 3 are mounted at the tail end of a main shaft of the turntable 11 to form a group of bearing combination, so that the bearing supporting capacity is improved. The bearing group is fixedly installed at two ends, the bearing retainer ring 4 is connected with the turntable 11 through the bearing retainer ring fixing screws 5, and the inner ring of the bearing group is limited; the rear end cover 6 is connected with the movable template 1 of the injection molding machine through a rear end cover fixing screw 2 to tightly press the bearing outer ring of the needle bearing set; the conical surface of the rotating disk 11 is in conical contact with the conical roller 13 and the pressing force provided by the cover plate 14 on the supporting action of the rotating disk 11, so that the rotating disk 11 can stably run around the axis of the rotating disk 11; the needle roller bearing 3 is used for preventing the turntable 11 from tilting due to hanging the mold during operation, and providing a certain supporting force.
The injection molding machine movable mould plate 1 contacts with the tapered roller 13 to form rolling friction, in order to reduce the abrasion to the injection molding machine movable mould plate, the abrasion generated when the rotating disc rotates is generated on the lining, and a tapered lining is embedded at the contact part of the two. In the turntable structure, all contact surfaces with relative motion can be added with an anti-abrasion bushing, and the anti-abrasion bushing can be added on the turntable 11 or the movable template 1 and the cover plate 14 of the injection molding machine. The bushing is not shown in fig. 1.
The turntable rotating structure is arranged on the movable mold plate 1 or the turntable 11 of the injection molding machine and is provided with a signal detection device when working, such as: the magnetic proximity switch needs to rotate the rotary table by 180 degrees after the material A is injected, needs to rotate the rotary table by 180 degrees in the reverse direction after the material B is injected, and the running programs of the signal detection device, the control device and the corresponding driving motor are all the existing mature technologies, and the corresponding structures of the magnetic proximity switch are not shown in figure 1.
Claims (3)
1. The utility model provides a carousel revolution mechanic of double-colored injection molding machine which characterized in that: the injection molding machine comprises a movable template of an injection molding machine, a rear end cover fixing screw, a needle bearing, a bearing retainer ring fixing screw, a rear end cover, a turntable driving device, a coupling, a transmission device, a ball retainer, balls, a turntable, a tapered roller retainer, tapered rollers, a cover plate and a cover plate fixing screw, wherein the turntable driving device, the coupling and the transmission device form a turntable driving system; the turntable driving system is arranged on the upper side of the movable template of the injection molding machine; the turntable driving device is fixed on a movable template of the injection molding machine by using bolts, and the control of a power source is ensured to be accurately operated by a control system of the injection molding machine; the turntable driving device and the transmission device are connected together through a coupling; the transmission device is a gear reduction system, and a reduction box body is connected by bolts and is arranged on a movable template of the injection molding machine; the turntable driving device drives the input shaft of the transmission system to rotate, the power output gear directly drives the turntable to rotate after passing through the coupler and the transmission device, the outermost side of the turntable is of a large gear structure consisting of a plurality of gear teeth, and the gear teeth on the outermost side of the turntable are meshed with the gear teeth of the power output gear of the transmission device; a low-friction roller system is arranged in the rotary structure of the rotary table, a tapered structure is formed between the movable mould plate of the injection molding machine and the left side of the rotary table, a circle of tapered rollers are filled between the surfaces of the movable mould plate and the rotary table which rotate relatively, the rollers are restrained in a tapered roller retainer, a circle of groove for ensuring the movement position of the tapered rollers is arranged on one side of the rotary table, which is in contact with the tapered rollers, and a tapered ring surface is arranged on one side of the movable mould plate of the injection; a set of turntable cover plate ball system is arranged between the right side of the turntable and the cover plate, and the cover plate is fixed on a movable template of the injection molding machine through a cover plate fixing screw; a circle of balls and a ball retainer thereof are filled between the right side of the turntable and the cover plate, the balls surround the groove of the turntable for a circle, and the ball retainer ensures that the balls are accurate in position in the rotation process of the turntable; the movable template, the tapered rollers, the rotary table and the balls of the injection molding machine are sequentially contacted with the cover plate, and the pre-tightening force after the contact is adjusted by connecting the movable template and the cover plate through screws and adjusting gaskets; two pairs of needle roller bearings are mounted at the tail end of the main shaft of the turntable to form a group of bearing combination; the bearing group is fixedly installed at two ends, and the bearing retainer ring is connected with the turntable through the bearing retainer ring fixing screws to limit the inner ring of the bearing group; the rear end cover is connected with a movable template of the injection molding machine through a rear end cover fixing screw to tightly press the bearing outer ring of the needle bearing set.
2. The turntable rotating structure of a two-color injection molding machine according to claim 1, characterized in that: the anti-abrasion bushings are added on all the contact surfaces with relative motion, or on the rotating disc or on the movable mould plate and the cover plate of the injection molding machine.
3. The turntable rotating structure of a two-color injection molding machine according to claim 1, characterized in that: a signal detection device is arranged on a movable template or a turntable of the injection molding machine, the position of the turntable is monitored, and the turntable is driven to rotate accurately by a control system to drive a motor to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010810205.1A CN111873310A (en) | 2020-08-13 | 2020-08-13 | Turntable rotating structure of double-color injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010810205.1A CN111873310A (en) | 2020-08-13 | 2020-08-13 | Turntable rotating structure of double-color injection molding machine |
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| CN111873310A true CN111873310A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010810205.1A Pending CN111873310A (en) | 2020-08-13 | 2020-08-13 | Turntable rotating structure of double-color injection molding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2923268Y (en) * | 2006-07-07 | 2007-07-18 | 夏善海 | Double-colour moulder rotary disc clutching-index locking device |
| CN104476714A (en) * | 2014-12-05 | 2015-04-01 | 宁波赫仕机械制造有限公司 | Turn plate structure for injection molding machine |
| CN204340077U (en) * | 2014-12-05 | 2015-05-20 | 宁波赫仕机械制造有限公司 | A kind of turntable structure of injection machine |
| WO2017210793A1 (en) * | 2016-06-08 | 2017-12-14 | Athena Automation Ltd. | Injection molding machine with rotary apparatus |
| CN207509598U (en) * | 2017-11-22 | 2018-06-19 | 深圳市迪嘉机械有限公司 | A kind of abrasion-proof structure and double coloured plastic injection machine of double coloured plastic injection machine mold turn-table device |
| CN212288428U (en) * | 2020-08-13 | 2021-01-05 | 北京化工大学 | Turntable rotating structure of double-color injection molding machine |
-
2020
- 2020-08-13 CN CN202010810205.1A patent/CN111873310A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2923268Y (en) * | 2006-07-07 | 2007-07-18 | 夏善海 | Double-colour moulder rotary disc clutching-index locking device |
| CN104476714A (en) * | 2014-12-05 | 2015-04-01 | 宁波赫仕机械制造有限公司 | Turn plate structure for injection molding machine |
| CN204340077U (en) * | 2014-12-05 | 2015-05-20 | 宁波赫仕机械制造有限公司 | A kind of turntable structure of injection machine |
| WO2017210793A1 (en) * | 2016-06-08 | 2017-12-14 | Athena Automation Ltd. | Injection molding machine with rotary apparatus |
| CN207509598U (en) * | 2017-11-22 | 2018-06-19 | 深圳市迪嘉机械有限公司 | A kind of abrasion-proof structure and double coloured plastic injection machine of double coloured plastic injection machine mold turn-table device |
| CN212288428U (en) * | 2020-08-13 | 2021-01-05 | 北京化工大学 | Turntable rotating structure of double-color injection molding machine |
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