CN114701111B - Molding and storing process of ACM material loading tray - Google Patents
Molding and storing process of ACM material loading tray Download PDFInfo
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- CN114701111B CN114701111B CN202210386942.2A CN202210386942A CN114701111B CN 114701111 B CN114701111 B CN 114701111B CN 202210386942 A CN202210386942 A CN 202210386942A CN 114701111 B CN114701111 B CN 114701111B
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000000465 moulding Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 239000003292 glue Substances 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims description 46
- 238000003860 storage Methods 0.000 claims description 29
- 238000004080 punching Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000001746 injection moulding Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 244000208734 Pisonia aculeata Species 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000004831 Hot glue Substances 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- 238000004513 sizing Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000005679 Peltier effect Effects 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B29C45/03—Injection moulding apparatus
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/7207—Heating or cooling of the moulded articles
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a molding and storing process of an ACM material loading tray, which comprises the following steps of: firstly fixing a stamping die holder, placing a fixed die holder, then starting a hydraulic cylinder to drive the stamping die holder to be matched with the fixed die holder, starting a servo motor to drive a distributing mechanism to seal a die cavity, restarting the distributing mechanism to reset after glue injection, taking out a formed feeding disc and storing the formed feeding disc on a disc placing frame, laterally standing the feeding disc by adjusting the heights of a clamping edge strip and a lapping rod, starting a refrigerating sheet and a speed reducing motor to control a blade wheel to blow cold air to the bottom of the disc placing frame, and cooling the feeding disc to shape; according to the invention, the middle layer of the stamping die holder is provided with the unfolded material distributing mechanism, when hot melt glue is injected, the upper part and the lower part are formed by separating the die cavity from the die core gap, and then the material distributing mechanism is folded to enable the upper part and the lower part to be formed into the glue body to be in contact and bonded, so that the glue body is integrally formed into the feeding disc, thereby solving the problem of unstable stretching of the ACM glue material too long and having practical value.
Description
Technical Field
The invention relates to the technical field of energy conservation and environmental protection, in particular to a molding and storing process of an ACM material loading tray.
Background
The ACM material is acrylate rubber, and has excellent oil resistance, heat resistance, ozone resistance, ultraviolet resistance and other performances. In recent years, with the rapid development of the automobile industry, the motorcycle industry, the electric power industry, the demand for ACM has been increasing, such as the manufacture of seals for transformers, and the like. Most rubber product enterprises in China are small and medium-sized enterprises, the technical strength is weak, and popularization and application of ACM are also affected. In the compounding of ACM sizing materials, the more common technical problems are mainly as follows: the sizing material performance is unstable, the tensile strength is too low and the permanent deformation is pulled, namely if the depth of the manufactured feeding disc is large, gaps are easily broken when the die is used for closing and stamping, and the formed feeding disc is stored in a superposition mode so as to save space, however, the feeding discs are stuck to each other in the mode, and the deformation is easily pulled when the feeding discs are separated; in addition, when the traditional injection molding machine is used for hoisting the mold, the oil cylinder is started first to enable the movable mold and the fixed mold to be assembled, and then the bolts are connected to fix the mold, so that the operation process is time-consuming and inconvenient.
Disclosure of Invention
The invention aims to provide a molding and storing process of an ACM material loading tray, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the invention provides a molding and storing process of an ACM material loading tray, which comprises the following steps:
1. and (3) die filling stage:
s1, firstly, mounting a stamping die holder in a forming storage device of a feeding disc below a bracket;
s2, correspondingly inserting an injection gun of the injection molding machine into the through-bottom hole and the through-top hole at the top of the mold core through the injection pipe;
s3, placing the fixed die holder into a sinking groove of the processing table;
2. and (3) forming:
s4, starting a hydraulic cylinder to drive the stamping die holder to descend into the fixed die holder, and completing die assembly;
s5, after the servo motor is started again to drive the cross wheel to rotate, the protruding end of the cross wheel is aligned with the inner end of the push rod, and the straight side rod and the bevel side rod are driven to move outwards and abut against the inner side surface of the die cavity;
s6, starting the injection molding machine to inject glue, and respectively introducing the glue into the bottom and the top of the mold cavity through the bottom through hole and the top through hole;
s7, after the servo motor is restarted to drive the cross wheel to rotate, the concave cambered surface of the cross wheel is aligned with the inner end of the push rod, and the straight side rod and the bevel side rod are driven to reset under the action of pull-back force of the spring;
s8, after the forming, starting a hydraulic cylinder to drive the stamping die holder to ascend so as to be separated from the fixed die holder;
s9, restarting the servo electric cylinder to drive a plurality of ejector pins to eject the formed feeding disc out of the die cavity;
3. storage stage:
s10, taking out the feeding disc and placing the feeding disc in a storage device, so that the edge of the feeding disc is clamped into the clamping edge strip on the disc edge placing assembly;
s11, a screw rod on the assembly is put on the rotary disc body again to adjust the height position of the screw rod, so that the screw rod supports the side edge of the feeding disc;
s12, storing a feeding disc in each molding step according to the steps S10-S11;
4. and (3) a cooling stage:
s12, the refrigerating sheet is electrified in advance to cool the water in the cooling box;
s13, restarting the gear motor to drive the vane wheel to rotate so as to lead the air to be cooled through the internal environment of the cooling box, and then blowing the air to the storage device so as to enable the feeding tray to be cooled rapidly, so that the feeding tray and the cooling box are stored;
the forming storage device of the feeding disc comprises a processing table and a stamping device arranged on a central line of the processing table, wherein the stamping device comprises a stamping die holder which is positioned above the middle part of the processing table and can vertically reciprocate, a fixed die holder which is embedded in the middle part of the processing table and a material dividing mechanism which is embedded in the side surface of the stamping die holder, the stamping die holder is in a flat plate shape, a die core is integrally formed at the center of the bottom surface of the stamping die holder, the fixed die holder is in a thick plate shape, a die cavity which is clamped with the die core is formed in the center of the top surface of the fixed die holder, the outer dimension of the die core is smaller than the outer dimension of the die cavity, the material dividing mechanism comprises a pair of straight edge rods which are embedded in the middle layer of the straight side surface of the die core, a pair of bevel edge rods which are embedded in the middle layer of the bevel side surface of the die core, a cross wheel which is arranged in the center of the die core and is used for driving the straight edge rods and the bevel edge rods to horizontally move and stretch, and a servo motor which is coaxially connected with the cross wheel is arranged in the middle part of the inner side of the die core, springs which are used for returning and pulling the straight edge rods and the bevel edge rods are welded in the middle part of the inner side middle of the straight edge rods and the bevel edge rods;
the processing table comprises a processing table body, a processing table and a processing table, wherein a plurality of storage devices are arranged at two ends of the top surface of the processing table body, each storage device comprises a tray frame of a cuboid frame structure, tray edge placing components and tray body stacking components, the tray edge placing components and the tray body stacking components are alternately arranged in the tray frame, each tray edge placing component comprises a pair of screw rods inserted at the upper end and the lower end of the tray frame, a linkage wheel sleeved at the upper end and the lower end of the screw rods, a linkage belt arranged between the lower ends of the pair of screw rods and a clamping edge strip connected between the pair of screw rods and moving along the axial direction of the screw rods, and lantern rings in threaded connection with the screw rods are arranged at two ends of the clamping edge strip;
the tray body stacking assembly comprises a pair of screw rods, two pairs of linkage wheels, a linkage belt and a stacking rod which is connected between the pair of screw rods and moves along the axial direction of the screw rods, and sleeve columns in threaded connection with the screw rods are arranged at two ends of the stacking rod.
As a further improvement of the technical scheme, a plurality of through bottom holes are formed in the middle area of the top surface of the stamping die holder, a plurality of through top holes are formed in the edge of the top surface of the stamping die holder, the through bottom holes penetrate through the bottom surface of the die core, the through top holes penetrate through the top surface of the die core, and rubber injection pipes are inserted into the through bottom holes and the through top holes.
As a further improvement of the technical scheme, the middle layer of the outer side surface of the mold core is provided with non-connected rod grooves, the middle part of each rod groove is provided with a slot pointing to the central shaft of the mold core, the center of the middle layer of the mold core is provided with a cylindrical hole penetrating through the top surface of the punching mold base, the cross wheel is positioned at the bottom of the cylindrical hole, and the two side surfaces of the joint of each slot and each rod groove are provided with a widening groove.
As a further improvement of the technical scheme, the top surface of the stamping die holder is fixedly connected with a bracket through a bolt, a plurality of guide posts used for guiding the bracket are arranged on the processing table, a hydraulic cylinder and a hydraulic station used for supporting the bracket are arranged at the middle part of the processing table towards the rear side, a sinking groove is formed in the middle part of the processing table, a supporting frame is sleeved at the top end of the fixed die holder, and the supporting frame is matched with the sinking groove in a clamping mode.
As a further improvement of the technical scheme, an ejection mechanism is further arranged below the middle of the processing table, a plurality of ejector pin holes penetrating into the die cavity are formed in the bottom surface of the fixed die holder, and the ejection mechanism comprises a plurality of ejector pins spliced with the ejector pin holes, an ejector frame used for connecting the ejector pins and a servo electric cylinder used for ejecting the ejector frame.
As the further improvement of this technical scheme, the welding of bottom surface and skew middle part department of processing platform has the support frame, the top surface of processing platform just is directly over the support frame and has been offered a plurality of wind gaps side by side, strorage device is located the wind gap top, the inside cold wind device that is provided with of support frame, cold wind device is including the cover establish in kuppe, the kuppe bottom of the top below of support frame in the impeller that sets up, be used for driving the gear motor of impeller rotation and be used for the cooler bin of infusion air conditioning in the kuppe.
As the further improvement of this technical scheme, the top surface of cooling box and its top one side all are equipped with the water pipe that is linked together rather than inside, cooling box's top side just is located the water pipe top and inlays and has been equipped with the refrigeration piece, the ventilation groove has been seted up at cooling box's top and is located the level one side of refrigeration piece, a plurality of perforation have been seted up to the bottom surface of kuppe.
Compared with the prior art, the invention has the beneficial effects that:
1. in the molding and storing process of the ACM material feeding disc, a fixed die holder is positioned and placed through a set processing table, and a stamping die holder matched with the fixed die holder is arranged right above the fixed die holder, so that when a traditional injection molding machine is used for hoisting a die, an oil cylinder is started to enable the moving die and the static die to be matched, and then a bolt is connected to fix the die, and the technical bias is solved; meanwhile, an unfolded material distributing mechanism is arranged at the middle layer of the stamping die holder, when hot melt glue is injected, an upper part and a lower part are formed by separating a die cavity from a die core gap, after the upper part and the lower part are formed independently, the upper part and the lower part are formed by folding the material distributing mechanism, so that the upper part and the lower part are formed by glue body contact adhesion, and then the whole material distributing mechanism is formed into a feeding disc, thereby solving the problem of unstable stretching overlong ACM glue material and having practical value.
2. In the molding storage process of the ACM material feeding tray, the plurality of storage devices are arranged for temporarily storing the molded feeding tray, and after the molded feeding tray is cooled and shaped, the stacked trays are taken out for boxing, and the tray edges and the side surfaces of the plurality of feeding trays are supported by the plurality of groups of tray edge placing components and the tray body stacking components, so that the feeding tray is stored on side without being stacked and sticky, deformation during pulling is avoided, and the molding storage process has popularization and use values.
3. In the molding and storing process of the ACM material feeding tray, through the cold air device, the cooling box is utilized to cool air entering the ACM material feeding tray from the outside, and then the ACM material feeding tray is pumped and discharged through the blade wheel and blown to the storing device through the air guide cover and the air inlet, so that a plurality of feeding trays are rapidly cooled and shaped, so that the ACM material feeding tray is moved and packaged, and then the empty tray placing frame is replaced and placed on the air inlet.
4. In the molding storage process of the ACM material loading tray, through the clamping edge strips capable of moving up and down, which are arranged in the tray edge placing assembly, the tray edge of the loading tray is clamped, through the lapping rod capable of moving up and down, which is arranged in the tray body lapping assembly, the side face of the loading tray is used for supporting the side face of the loading tray, so that the loading tray with different size specifications can be stably placed on the side, the stacking adhesion is avoided, meanwhile, the transfer placement of the tray placing frame is facilitated, the tray edge clamping edge strips of the loading tray with different specifications are conveniently and quickly operated, and the tray is simple in structure, low in cost and practical in value.
Drawings
FIG. 1 is a schematic view showing the overall open state structure of embodiment 1;
FIG. 2 is a schematic view showing the structure of the whole pressed state in embodiment 1;
fig. 3 is a schematic view showing an open state structure of the press apparatus of embodiment 1;
fig. 4 is a schematic view showing a structure of a punching state of the punching device of embodiment 1;
fig. 5 is a schematic view showing an assembled position of the storage device and the cooling air device of embodiment 1;
fig. 6 is a schematic diagram of an assembling structure of a stamping die holder in embodiment 1;
fig. 7 is a schematic diagram of the assembly structure of the material distributing mechanism in embodiment 1;
FIG. 8 is a full sectional view of the press die holder of example 1;
fig. 9 is a schematic view of the bottom view structure of the punch die holder of embodiment 1;
FIG. 10 is a split view of a stationary platen according to embodiment 1;
FIG. 11 is a split view of the ejector mechanism and the stationary platen of embodiment 1;
fig. 12 is a schematic diagram of the bracket assembly structure of embodiment 1;
FIG. 13 is a schematic view showing the structure of a processing table in example 1;
FIG. 14 is a schematic view showing the assembled structure of the storage device of embodiment 1;
FIG. 15 is a schematic view of the tray rack of embodiment 1;
FIG. 16 is a schematic view showing the assembly structure of the tray edge placement module of embodiment 1;
fig. 17 is a schematic view of the tray stacking assembly of embodiment 1;
fig. 18 is a schematic diagram showing an assembly structure of a cooling air device in embodiment 1;
FIG. 19 is a schematic view showing the assembly structure of a blade wheel of embodiment 1;
FIG. 20 is a schematic diagram showing an assembly structure of a cooling box in embodiment 1;
fig. 21 is a schematic view of the air guide sleeve structure of embodiment 1.
The meaning of each reference sign in the figure is:
100. a processing table; 101. sinking grooves; 102. a support frame; 103. an air port;
200. a punching device; 210. stamping a die holder; 211. a mold core; 212. a bottom through hole; 213. a through top hole; 214. a rod groove; 215. a slot; 216. a widening groove; 217. a cylindrical hole; 218. a thickening table;
220. a fixed pressure die holder; 221. a mold cavity; 222. a top pinhole; 223. a support frame; 224. a sinking platform; 225. a clamping table;
230. a material distributing mechanism; 231. a straight side bar; 232. a bevel edge lever; 233. a spring; 234. cross wheels; 235. a servo motor; 236. a push rod;
240. a bracket; 241. a slide block; 242. a top frame; 250. a hydraulic cylinder; 260. a guide post; 270. a rubber injection pipe;
300. an ejection mechanism; 310. a thimble; 320. a top frame; 330. a servo electric cylinder;
400. a storage device; 410. a tray rack; 411. a jack;
420. a tray edge placement component; 421. a screw rod; 422. a linkage wheel; 423. a linkage belt; 424. edge clamping strips; 425. a collar; 430. a tray body stacking assembly; 431. a pole is lapped; 432. a sleeve column;
500. a cold air device; 510. a blade wheel; 520. a speed reducing motor; 530. a guide cover; 531. perforating; 540. a cooling box; 541. a water pipe; 542. a vent groove; 550. a refrigerating sheet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "central axis," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, in the description of the invention, the meaning of "a number" is two or more, unless explicitly defined otherwise.
Example 1
Referring to fig. 1-21, the invention provides a molding and storing process of an ACM material loading tray, comprising the following steps:
1. and (3) die filling stage:
s1, firstly, mounting a stamping die holder 210 in a forming storage device of a feeding disc below a bracket 240;
s2, correspondingly inserting an injection gun of the injection molding machine into the through-bottom hole 212 and the through-top hole 213 at the top of the mold core 211 through the injection pipe 270;
s3, placing the fixed die holder 220 into the sinking groove 101 of the processing table 100;
2. and (3) forming:
s4, starting a hydraulic cylinder 250 to drive the stamping die holder 210 to descend into the fixed die holder 220, and completing die assembly;
s5, after the servo motor 235 is restarted to drive the cross wheel 234 to rotate, the protruding end of the servo motor is aligned with the inner end of the push rod 236, and the straight side rod 231 and the inclined side rod 232 are driven to move outwards and abut against the inner side surface of the die cavity 221, so that isolation is formed, and a gap between the die core 211 and the die cavity 221 is divided into two parts.
S6, starting the injection molding machine to inject glue into the bottom and the top of the mold cavity 221 through the bottom through hole 212 and the top through hole 213, so that hot melt glue flows out of the bottom through hole 212 to fill the separated lower half of the mold cavity 221, and hot melt glue flows out of the top through hole 213 to fill the separated upper half of the mold cavity 221, so that the folding and pressing stroke of the hot melt glue is reduced, and the breaking is avoided.
S7, after the servo motor 235 is restarted to drive the cross wheel 234 to rotate, the concave cambered surface of the servo motor is aligned with the inner end of the push rod 236, and the straight side rod 231 and the inclined side rod 232 are driven to reset under the action of the pull-back force of the spring 233, so that the formed parts at the upper part and the lower part of the die cavity 221 are contacted and bonded to integrally form a feeding disc;
s8, after the forming, starting the hydraulic cylinder 250 to drive the stamping die holder 210 to ascend so as to separate from the fixed die holder 220;
s9, restarting the servo electric cylinder 330 to drive the ejector pins 310 to eject the formed feeding disc out of the die cavity 221;
3. storage stage:
s10, taking out the feeding disc and placing the feeding disc in the storage device 400, enabling the edge of the feeding disc to be clamped into the clamping edge strip 424 on the disc edge placing assembly 420, enabling the feeding disc to be erected, and avoiding superposition and adhesion;
s11, a screw rod 421 on the assembly 430 is placed on the rotary disc body again to adjust the height position of the assembly, so that a placing rod 431 supports the side edge of the feeding disc, the feeding disc is erected, and superposition and adhesion are avoided;
s12, storing a feeding disc in each molding step according to the steps S10-S11;
4. and (3) a cooling stage:
s12, the refrigerating sheet 550 is electrified in advance to cool the water in the cooling box 540, and the refrigerating sheet 550 is utilized to absorb the temperature in the cooling box 540 to cool the water;
s13, restarting the gear motor 520 to drive the vane wheel 510 to rotate so as to lead the air to be cooled by the internal environment of the cooling box 540, and then blowing the air to the storage device 400 so as to quickly cool the feeding tray, so that the feeding tray is stored.
In this embodiment, the forming storage device of the feeding tray includes a processing table 100 and a stamping device 200 disposed on a central line of the processing table 100, where the stamping device 200 includes a stamping die holder 210 located above a middle portion of the processing table 100 and capable of vertically moving reciprocally, a fixed die holder 220 embedded in the middle portion of the processing table 100, and a material distributing mechanism 230 embedded in a side surface of the stamping die holder 210, the fixed die holder 220 is positioned and placed by using the processing table 100, and the stamping die holder 210 directly above the fixed die holder 220 is matched, so that the stamping die holder 210 and the fixed die holder 220 are vertically matched. Meanwhile, the unfolded material distributing mechanism 230 is utilized to divide the gap between the die cavity 221 and the die core 211 into an upper part and a lower part when hot melt glue is injected, so that the upper part and the lower part are independently molded, and then the material distributing mechanism 230 is collected to enable the molding glue of the upper part and the lower part to be in contact and bonded, so that the whole molding glue is further molded into a feeding disc. The stamping die holder 210 is flat plate-shaped, the center of the bottom surface of the stamping die holder is integrally formed with a die core 211, the fixed die holder 220 is thick flat plate-shaped, the center of the top surface of the fixed die holder is provided with a die cavity 221 clamped with the die core 211, the outer dimension of the die core 211 is smaller than that of the die cavity 221, and a gap between the die core 211 and the die cavity 221 after die assembly is in the shape of a feeding disc and is formed by filling hot melt adhesive. The material distributing mechanism 230 comprises a pair of straight edge rods 231 embedded in the middle layer of the straight side surface of the mold core 211, a pair of bevel edge rods 232 embedded in the middle layer of the bevel side surface of the mold core 211, a cross wheel 234 arranged in the center of the mold core 211 and used for driving the straight edge rods 231 and the bevel edge rods 232 to translate and stretch, and a servo motor 235 coaxially connected with the cross wheel 234. The middle parts of the inner sides of the straight side rod 231 and the inclined side rod 232 are respectively provided with a spring 233 for returning the straight side rod and the inclined side rod.
Further, a plurality of through bottom holes 212 are formed in the middle area of the top surface of the stamping die holder 210, a plurality of through top holes 213 are formed in the edge of the top surface of the stamping die holder 210, the through bottom holes 212 penetrate to the bottom surface of the die core 211, the through top holes 213 penetrate through the top surface of the die core 211, the rubber injection pipes 270 are inserted into the through bottom holes 212 and the through top holes 213, the through bottom holes 212 and the through top holes 213 are not fully communicated through the material distributing mechanism 230, and the injected hot melt rubber is formed in two parts and then adhered and formed, so that the situation that the die cavity 221 is broken due to too deep is avoided.
Specifically, push rods 236 are welded at the middle parts of the inner sides of the straight-edge rods 231 and the inclined-edge rods 232, the outer side surfaces of the mold cores 211 are provided with non-connected rod grooves 214 in the middle, namely, adjacent rod grooves 214 are not communicated end to end, the thickness of each push rod 236 is smaller than that of each straight-edge rod 231 and each inclined-edge rod 232, the situation that glue solution is permeated due to gaps generated at the connection parts of each push rod 236 and each straight-edge rod 231 and each inclined-edge rod 232 is avoided, and the straight-edge rods 231 and the inclined-edge rods 232 are guaranteed to be retracted into the corresponding rod grooves 214 to be sealed well. Although the hot melt adhesive can infiltrate each other through the gap between the straight edge bar 231 and the end to end of the inclined edge bar 232, the small gap does not affect the extension and breaking of the ACM hot melt adhesive. A slot 215 is formed in the middle of the rod groove 214 and points to the central shaft of the mold core 211, and is inserted into the push rod 236 to play a guiding role, so that the straight side rod 231 and the inclined side rod 232 are guaranteed to linearly translate. The center of the middle layer of the mold core 211 is provided with a cylindrical hole 217 penetrating through the top surface of the punching mold base 210, namely, the cylindrical hole 217 is communicated with the slot 215, the cross wheel 234 is positioned at the bottom of the cylindrical hole 217, and the servo motor 235 is fixed on the top surface of the punching mold base 210 through a bolt. The expansion grooves 216 are formed in the two side surfaces of the connecting part of the slot 215 and the rod groove 214, the springs 233 are placed in the expansion grooves 216, one ends of the springs 233 are bonded with the inner ends of the expansion grooves 216, the other ends of the springs 233 are bonded with the inner sides of the straight-edge rods 231 or the inclined-edge rods 232, and the natural length of the springs 233 is smaller than the length of the expansion grooves 216 through design, so that the straight-edge rods 231 and the inclined-edge rods 232 are always pulled by the pull-back force of the springs 233 to be blocked in the corresponding rod grooves 214, and the outer side surfaces of the mold cores 211 are guaranteed to be smooth. When the cross wheel 234 rotates, the convex end of the cross wheel 234 aligns with the inner end of the push rod 236, the straight side rod 231 and the inclined side rod 232 are driven to extend outwards, and when the cross wheel 234 rotates again, the concave cambered surface of the cross wheel aligns with the inner end of the push rod 236, the straight side rod 231 and the inclined side rod 232 are driven to reset under the action of the elasticity of the shrinkage of the spring 233 and are completely clamped in the rod groove 214.
Further, the top surface of the stamping die holder 210 is fixedly connected with a bracket 240 through bolts, a plurality of guide posts 260 for guiding the bracket 240 are arranged on the processing table 100, and the bottom ends of the guide posts 260 are welded with the processing table 100, so that the bracket 240 is supported to drive the stamping die holder 210 to stably lift. A hydraulic cylinder 250 for supporting the carrier 240 and a hydraulic station, which is a hydraulic source device including a hydraulic pump, a driving motor, an oil tank, a directional valve, a throttle valve, a relief valve, and the like, or a hydraulic device including a control valve, are installed toward the rear side of the middle of the processing table 100. The hydraulic station is connected with a driving device, namely an oil pipe for a hydraulic cylinder, and the hydraulic system can realize the expansion and the contraction of a piston rod of the hydraulic system by power for the hydraulic cylinder. A V-shaped top frame 242 is welded to the rear side of the bracket 240, and the top frame 242 is fixedly connected to the top end of the piston rod of the hydraulic cylinder 250 by bolts. The middle part of the processing table 100 is provided with a sinking groove 101, the top end of the fixed die holder 220 is sleeved with a supporting frame 223, and the supporting frame 223 is matched with the sinking groove 101 in a clamping way. The top of the inner side of the supporting frame 223 is provided with a sinking table 224, the top edge of the fixed die holder 220 is outwards provided with a clamping table 225 which is clamped with the sinking table 224, the fixed die holder 220 is favorable for replacing the fixed die holders 220 of different die cavities 221, and in order to enable the stamping die holder 210 to be attached to the top surface of the fixed die holder 220, the edge of the top surface of the stamping die holder 210 is convexly provided with a thickening table 218 for resisting the height from the base of the guide post 260 to the top surface of the fixed die holder 220. The bracket 240 is in a square frame structure and is fixedly connected with the thickening table 218 through bolts, a sliding block 241 sleeved with the guide post 260 is welded to the outer side at the corner of the bracket 240, and the guide post 260 is vertically arranged, so that the bracket 240 drives the stamping die holder 210 to axially move along the guide post 260. Because the distance between the two sliding blocks 241 along the length direction of the processing table 100 is larger than the width of the stamping die holder 210, the sliding blocks can be conveniently moved into the stamping die holder 210 to the bottom surface of the bracket 240 for installation, and meanwhile, the fixed die holder 220 can be conveniently taken and placed from the guide posts 260.
Further, an ejector mechanism 300 is further provided below the middle portion of the processing table 100, for ejecting the loading tray formed in the mold cavity 221 for taking. The bottom surface of the fixed die holder 220 is provided with a plurality of ejector pin holes 222 penetrating into the die cavity 221, the ejector mechanism 300 comprises a plurality of ejector pins 310 which are inserted into the plurality of ejector pin holes 222, an ejector frame 320 for connecting the plurality of ejector pins 310 and a servo electric cylinder 330 for ejecting the ejector frame 320, and after the fixed die holder 220 is installed in place, the top ends of the plurality of ejector pins 310 are flush with the bottom surface of the die cavity 221, so that the molding surface of the feeding plate at the bottom surface of the die cavity 221 is ensured to be complete.
In addition, a plurality of storage devices 400 are arranged at two ends of the top surface of the processing table 100, and are used for temporarily storing the formed feeding tray, and taking out the stacking and boxing after the tray is cooled and shaped. The storage device 400 includes a tray rack 410 with a cuboid frame structure, and a tray edge placing component 420 and a tray body stacking component 430 which are located in the tray rack 410 and are alternately arranged, namely, a tray edge and a side surface of a feeding tray are supported by matching of the tray edge placing component 420 and the tray body stacking component 430, so that the feeding tray is stored on the side without being stacked and sticky, and deformation during pulling is avoided. The tray edge placing assembly 420 comprises a pair of screw rods 421 inserted into the upper end and the lower end of the tray placing frame 410, a linkage wheel 422 sleeved at the upper end and the lower end of the screw rods 421, a linkage belt 423 arranged between the lower ends of the screw rods 421 and a clamping edge 424 connected between the screw rods 421 and moving along the axial direction of the screw rods, wherein the two ends of the clamping edge 424 are provided with lantern rings 425 connected with the screw rods 421 in a threaded manner, threads are arranged on the inner sides of the lantern rings 425, the linkage belt 423 is sleeved on the outer sides of the pair of linkage wheels 422 and is in a tightening state, the screw rods 421 are driven to rotate by rotating the linkage wheel 422 exposed at the upper end of one screw rod 421, and the linkage belt 423 transmits a rotating force to drive the other screw rod 421 to synchronously rotate in the same direction, so that the clamping edge 424 is driven to be clamped into the clamping edge 424 along the axial direction of the screw rods 421 or up or down, the tray edges of feed trays with different specifications are not touched to the ground, and the tray placing frame 410 provided with the feeding trays after cooling and shaping is moved to the ground, and workers are enabled to take up the boxes. The tray placing frame 410 is composed of two layers of square frames and a column body between the two layers of square frames, and a plurality of insertion holes 411 are formed in the top surfaces of the two layers of square frames of the tray placing frame 410 in a penetrating mode and used for penetrating through the screw rods 421 to achieve a positioning effect.
Further, the tray stacking assembly 430 includes a pair of screw rods 421, two pairs of linkage wheels 422, a linkage belt 423 and a stacking rod 431 connected between the pair of screw rods 421 and moving along the axial direction of the pair of screw rods 421, sleeve posts 432 in threaded connection with the screw rods 421 are arranged at two ends of the stacking rod 431, threads are arranged at the inner sides of central holes of the sleeve posts 432, the stacking rod 431 is lifted by the same clamping strips 424, the stacking rod 431 is abutted against the side surface of the feeding tray by adjusting the height of the stacking rod 431, and the tray edge is ensured to be clamped into the clamping strips 424 vertically and not to deform under force.
Besides, the bottom surface of the processing table 100 and the middle part deviating from the bottom surface are welded with the supporting frame 102, the top surface of the processing table 100 is provided with a plurality of air inlets 103 side by side right above the supporting frame 102, the storage device 400 is positioned above the air inlets 103, a cold air device 500 is arranged inside the supporting frame 102, the cold air device 500 comprises a guide cover 530 covered below the top of the supporting frame 102, a vane wheel 510 arranged in the bottom end of the guide cover 530, a speed reducing motor 520 for driving the vane wheel 510 to rotate and a cooling box 540 for injecting cold air into the guide cover 530, and the speed reducing motor 520 is embedded in a through hole in the bottom surface of the supporting frame 102 so as to realize positioning and stable operation. The upper end of the air guide sleeve 530 is square, and the lower end is contracted and sealed. The vane wheel 510 is driven by the gear motor 520 to rotate, so that the air flow in the air guide cover 530 is pumped and discharged from the cooling box 540, and then the air is blown to a plurality of feeding trays stored in the storage device 400 from the air inlet 103, so that the air is rapidly cooled and shaped.
Specifically, the top surface of the cooling tank 540 and one side of the top thereof are provided with water pipes 541 communicated with the inside thereof, and the water pipes 541 on one side of the top thereof are close to the middle layer of the cooling tank 540 for injecting clean water. The cooling box 540 has a cooling fin 550 embedded on the top side thereof above the water pipe 541, and one junction dissipates heat and the other absorbs heat when current passes through the thermocouple according to the peltier effect, as is well known to those skilled in the art. The two sides of the refrigerating sheet are composed of semiconductor sheets, one side of the refrigerating sheet absorbs heat, the other side of the refrigerating sheet dissipates heat, after the power is supplied, the heat of the heat absorbing surface is transferred to the heat dissipating surface, so that the ambient temperature where the heat absorbing surface is located is reduced, the heat absorbing surface of the refrigerating sheet 550 faces the inside of the cooling box 540, and the heat dissipating surface faces the outside of the cooling box 540 so as to dissipate heat in time. The ventilation groove 542 is formed in the top of the cooling box 540 and is positioned on one horizontal side of the refrigerating sheet 550, the plurality of perforations 531 are formed in the bottom surface of the air guide sleeve 530, the water pipe 541 at the top of the cooling box 540 is spliced with one of the perforations 531, so that when the vane wheel 510 rotates to pump exhaust air flow, external air enters the cooling box 540 through the ventilation groove 542, is cooled in the cooling box 540, is discharged into the air guide sleeve 530 from the perforations 531, is blown to the air inlet 103 by the vane wheel 510, and then is blown to cool a plurality of feeding plates on the tray frame 410 to enable the feeding plates to be shaped rapidly.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A molding and storing process of an ACM material loading tray is characterized in that: the method comprises the following steps:
1. and (3) die filling stage:
s1, firstly, mounting a stamping die holder (210) in a forming and storing device of a feeding disc below a bracket (240);
s2, correspondingly inserting an injection gun of the injection molding machine into a through bottom hole (212) and a through top hole (213) at the top of the mold core (211) through an injection pipe (270);
s3, placing the fixed die holder (220) into a sinking groove (101) of the processing table (100);
2. and (3) forming:
s4, starting a hydraulic cylinder (250) to drive the stamping die holder (210) to descend into the fixed die holder (220) so as to complete die assembly;
s5, after the servo motor (235) is restarted to drive the cross wheel (234) to rotate, the protruding end of the servo motor is aligned with the inner end of the push rod (236) to drive the straight side rod (231) and the bevel side rod (232) to move outwards and abut against the inner side surface of the die cavity (221);
s6, starting an injection molding machine to inject glue, and respectively introducing the glue into the bottom and the top of the mold cavity (221) through the bottom through hole (212) and the top through hole (213);
s7, after the servo motor (235) is restarted to drive the cross wheel (234) to rotate, the concave cambered surface of the servo motor is aligned with the inner end of the push rod (236), and the straight side rod (231) and the bevel side rod (232) are driven to reset under the action of pull-back force of the spring (233);
s8, after the forming, starting a hydraulic cylinder (250) to drive a stamping die holder (210) to ascend so as to separate from a fixed die holder (220);
s9, restarting the servo electric cylinder (330) to drive a plurality of ejector pins (310) to eject the formed feeding disc out of the die cavity (221);
3. storage stage:
s10, taking out the feeding disc and placing the feeding disc in a storage device (400), so that the edge of the feeding disc is clamped into a clamping edge strip (424) on a disc edge placing assembly (420);
s11, a screw rod (421) on a stacking assembly (430) of the turntable body is rotated again to adjust the height position of the screw rod, so that a stacking rod (431) supports the side edge of the feeding disc;
s12, storing a feeding disc in each molding step according to the steps S10-S11;
4. and (3) a cooling stage:
s12, electrifying the refrigerating sheet (550) in advance to cool the water in the cooling box (540);
s13, restarting the gear motor (520) to drive the vane wheel (510) to rotate so as to lead the air to be cooled through the internal environment of the cooling box (540), and then blowing the air to the storage device (400) to enable the feeding trays to be cooled rapidly, so that the feeding trays are stored;
the forming storage device of the feeding tray comprises a processing table (100) and a punching device (200) arranged on the center line of the processing table (100), wherein the punching device (200) comprises a punching die holder (210) which is arranged above the middle part of the processing table (100) and can vertically reciprocate, a fixed die holder (220) which is embedded in the middle part of the processing table (100) and a material dividing mechanism (230) which is embedded in the side surface of the punching die holder (210), the punching die holder (210) is flat plate-shaped, a die core (211) is integrally formed at the center of the bottom surface of the punching die holder, the fixed die holder (220) is thick flat plate-shaped, a die cavity (221) which is clamped with the die core (211) is formed at the center of the top surface of the punching die holder, the outside dimension of the die core (211) is smaller than the outside dimension of the die cavity (221), the material dividing mechanism (230) comprises a pair of straight side rods (231) which are embedded in the middle part of the die core (211), a pair of bevel side rods (232) which are embedded in the middle part of the die core (211) and a material dividing mechanism (230) which are arranged in the center of the die core (211) and a cross wheel (234) which is used for driving the straight side rods (231) and translating and the bevel wheels (232) which are arranged in the center, a pair of the straight side rods (234) and the bevel wheels (234) which are arranged in the center are used for driving the straight side rods and the straight side wheels and the bevel wheels (232) which are connected with the straight side wheels (234) and the middle wheels (234) which are coaxially and the middle part (234) which are used for stretching and the straight side (234) and the middle part (234) which are arranged in the middle drawing device, push rods (236) are welded at the middle parts of the inner sides of the straight-side rods (231) and the inclined-side rods (232);
a plurality of storage devices (400) are arranged at two ends of the top surface of the processing table (100), each storage device (400) comprises a tray frame (410) with a cuboid frame structure, a tray edge placing component (420) and a tray body stacking component (430) which are alternately arranged in the tray frame (410), each tray edge placing component (420) comprises a pair of screw rods (421) inserted at the upper end and the lower end of the tray frame (410), a linkage wheel (422) sleeved at the upper end and the lower end of each screw rod (421), a linkage belt (423) arranged between the lower ends of each screw rod (421) and a clamping strip (424) connected between the pair of screw rods (421) and moving along the axial direction of each clamping strip, and lantern rings (425) in threaded connection with the screw rods (421) are arranged at two ends of each clamping strip (424);
the tray body stacking assembly (430) comprises a pair of screw rods (421), two pairs of linkage wheels (422), a linkage belt (423) and a stacking rod (431) which is connected between the screw rods (421) and moves along the axial direction of the screw rods, and sleeve columns (432) in threaded connection with the screw rods (421) are arranged at two ends of the stacking rod (431).
2. The process for molding and storing an ACM material tray according to claim 1, wherein: a plurality of through bottom holes (212) are formed in the middle area of the top surface of the stamping die holder (210), a plurality of through top holes (213) are formed in the edge of the top surface of the stamping die holder (210), the through bottom holes (212) penetrate through the bottom surface of the die core (211), the through top holes (213) penetrate through the top surface of the die core (211), and rubber injection pipes (270) are inserted into the through bottom holes (212) and the through top holes (213).
3. The process for molding and storing an ACM material tray according to claim 2, wherein: the middle layer of the outer side surface of the mold core (211) is provided with non-connected rod grooves (214), the middle part of each rod groove (214) is provided with a slot (215) which points to the central shaft of the mold core (211), the center of the middle layer of the mold core (211) is provided with a cylindrical hole (217) penetrating through the top surface of the punching mold base (210), the cross wheel (234) is positioned at the bottom of the cylindrical hole (217), and two side surfaces of the connecting part of each slot (215) and each rod groove (214) are provided with a widening groove (216).
4. The process for molding and storing an ACM material tray according to claim 2, wherein: the top surface of punching press die holder (210) is through bolt fixedly connected with bracket (240), be provided with a plurality of guide pillars (260) that are used for leading bracket (240) on processing platform (100), pneumatic cylinder (250) and the hydraulic pressure station that are used for propping up bracket (240) are installed towards the rear side in the middle part of processing platform (100), heavy groove (101) have been seted up at the middle part of processing platform (100), support frame (223) have been cup jointed on the top of deciding die holder (220), support frame (223) and heavy groove (101) joint cooperation.
5. The process for molding and storing an ACM material tray according to claim 2, wherein: the middle part below of processing platform (100) still is provided with ejection mechanism (300), a plurality of thimble holes (222) that run through to in die cavity (221) are seted up to the bottom surface of fixed die holder (220), ejection mechanism (300) include with a plurality of thimble holes (222) pegging graft thimble (310), be used for connecting the roof rack (320) of a plurality of thimble (310) and be used for pushing away servo electric cylinder (330) of roof rack (320).
6. The process for molding and storing an ACM material tray according to claim 5, wherein: the utility model discloses a cooling box, including processing platform (100), support frame (102) has been welded in the bottom surface and skew middle part department of processing platform (100), top surface and being located support frame (102) are a plurality of wind gap (103) of seting up side by side directly over, strorage device (400) are located wind gap (103) top, support frame (102) inside is provided with cold wind device (500), cold wind device (500) are including cover dome (530) of establishing in the top below of support frame (102), blade wheel (510) that set up in dome (530) bottom, be used for driving gear motor (520) of blade wheel (510) rotation and be used for pouring cool air into cooling box (540) in dome (530).
7. The process for molding and storing an ACM material tray according to claim 6, wherein: the top surface of cooling case (540) and its top one side all are equipped with water pipe (541) that are linked together rather than inside, cooling case (540) top side and lie in water pipe (541) top inlay have refrigeration piece (550), ventilation groove (542) have been seted up at cooling case (540) top and lie in the level one side of refrigeration piece (550), a plurality of perforation (531) have been seted up to the bottom surface of kuppe (530).
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| CA2949744A1 (en) * | 2014-05-22 | 2015-11-26 | Achiman Pty Ltd | Pallet and method of making a pallet |
| CN104959509A (en) * | 2015-06-03 | 2015-10-07 | 重庆大学 | Combined die with temperature regulated in segmented and independent mode through numerical control |
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