CN109177099B - Device for cooling plastic plate - Google Patents

Device for cooling plastic plate Download PDF

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Publication number
CN109177099B
CN109177099B CN201811119818.XA CN201811119818A CN109177099B CN 109177099 B CN109177099 B CN 109177099B CN 201811119818 A CN201811119818 A CN 201811119818A CN 109177099 B CN109177099 B CN 109177099B
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China
Prior art keywords
water
wall
box
water tank
backup pad
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CN201811119818.XA
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Chinese (zh)
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CN109177099A (en
Inventor
梅照修
孙海迪
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Lianyungang Guowang Plastic Industry Co ltd
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Lianyungang Guowang Plastic Industry Co ltd
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Priority to CN201811119818.XA priority Critical patent/CN109177099B/en
Publication of CN109177099A publication Critical patent/CN109177099A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/7207Heating or cooling of the moulded articles

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Abstract

The invention discloses a device for cooling a plastic plate, which comprises a box body, wherein a water tank is arranged at the bottom end of the inner wall of the box body, a spray frame is arranged at the middle part in the box body, support rods are symmetrically arranged at the left side and the right side of the spray frame, a first support plate and a second support plate are arranged between the support rods at intervals, a first chute is symmetrically arranged at the left side of the upper surface of the first support plate, a second chute is symmetrically arranged at the right side of the upper surface of the second support plate, water spray pipes are symmetrically arranged at the inner walls of the left side and the right side of the box body, a first spray nozzle is arranged at the lower end of one side of the water spray pipes, which is far away from the inner wall of the box body, a drain pipe is communicated with the bottom end of the outer wall of the right side of the box body, and one end of the drain pipe, which is far away from the box body, is communicated with a water circulation device. The device for cooling the plastic plate achieves the purposes of uniform cooling, high efficiency and cyclic utilization of water resources, and improves the cooling efficiency of the plastic plate.

Description

Device for cooling plastic plate
Technical Field
The invention relates to the technical field of plastic plate cooling, in particular to a device for cooling a plastic plate.
Background
The plastic plate is made of plastic, and the plastic is a synthetic polymer compound, so that the shape and the style can be freely changed. The plastic is a material polymerized by using monomer raw materials through synthesis or condensation reaction, and is composed of synthetic resin and additives such as filler, plasticizer, stabilizer, lubricant, pigment and the like, and the main component of the plastic is the synthetic resin.
Along with the rapid development of economy and science and technology, plastic products are common articles in life, various plastic products are also appeared on the market, along with the increase of the demand of people for plastic products, the processing factories of plastic products are gradually developed, and in the production process of plastic plates, after the plastic plates are subjected to injection molding, the plastic plates need to be rapidly and effectively cooled, so that the plates shrink uniformly, and the product quality and aesthetic feeling are ensured. The existing method for cooling the plastic plate mostly adopts a common water tank for soaking, but as the plastic plate is made of plastic, the plastic plate floats on the water surface and is unevenly cooled, the outer wall of the plastic plate cannot be uniformly cooled, uneven shrinkage is caused, the surface quality of the plate is affected, and moreover, the water consumption is very large, so that the waste of water resources is caused.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a device for cooling a plastic plate, which solves the problems of uneven cooling, low efficiency and water resource waste.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a be used for refrigerated device of plastic slab, includes the box, the bottom of box inner wall is provided with the basin, the position at box intracavity middle part is provided with sprays the frame, the left and right sides symmetry of spraying the frame is provided with the bracing piece, the bottom of bracing piece and the inner wall fixed connection of basin, be provided with first backup pad and second backup pad between the bracing piece, the lower extreme interval setting of one side that the box inner wall was kept away from to the spray pipe, the left and right sides both ends of first backup pad and second backup pad all with bracing piece fixed connection, the position symmetry of first backup pad upper surface left side is provided with first spout, the bottom and the first backup pad fixed connection that have first spout, the position symmetry on second backup pad upper surface right side is provided with the second spout, the bottom and the second backup pad fixed connection of second spout, the inner wall symmetry of box left and right sides is provided with the pipe, the spray pipe is close to one side of box inner wall and the inner wall fixed connection of box, the lower extreme interval setting up of one side that the box inner wall was kept away from to the spray pipe, the position is provided with first shower nozzle on the box upper surface, the bottom of water tank and the water tank intercommunication has the water tank side.
Preferably, the front end face of the outer wall of the box body is communicated with the outside, four support rods are symmetrically arranged, three first support plates are arranged, two second support plates are arranged, and through holes are formed in the first support plates and the second support plates.
Preferably, the first through holes are formed in the middle of the outer walls on the left side and the right side of the first sliding groove, and the second through holes are formed in the middle of the outer walls on the left side and the right side of the second sliding groove.
Preferably, the inner wall of the spray pipe and the position corresponding to the first spray head are fixedly connected with a miniature pressure pump, the left end of the miniature pressure pump is communicated with the inside of the spray pipe, and the right end of the miniature pressure pump is communicated with the first spray head.
Preferably, the middle part of the lower surface of the water tank is communicated with a water outlet, the lower end of the water outlet is communicated with a water storage cavity, the lower surface of the water storage cavity is provided with second spray heads at intervals, and the upper ends of the second spray heads are communicated with the inside of the water storage cavity.
Preferably, valves are arranged at one end of the water spray pipe close to the water tank and one end of the water outlet close to the water tank.
Preferably, the upper end of drain pipe is provided with the overflow pipe, the right-hand member and the drain pipe intercommunication of overflow pipe, the inside intercommunication of overflow pipe and drain pipe left end and basin.
Preferably, the upper end in the water circulating device cavity is filled with filter cotton, the lower extreme of filter cotton is provided with first baffle, the lower extreme of first baffle is evenly filled with the active carbon, the lower extreme of active carbon is provided with the second baffle, both ends all with water circulating device's inner wall fixed connection about first baffle and the second baffle, just the through-hole has all been seted up to the inside of first baffle and second baffle, the lower extreme of second baffle is provided with out the water cavity.
Preferably, the upper end on water tank outer wall right side is provided with circulating water pump, circulating water pump's left end and the inside intercommunication of water tank, circulating water pump's right-hand member intercommunication has the back flow, the one end that circulating water pump was kept away from to the back flow runs through water circulating device and stretches into the inside right side of water outlet chamber, the back flow is close to the outer wall fixed connection of the outer wall of one side of box and box, the upper end of water tank left side outer wall is provided with the water inlet.
Preferably, the bottom fixedly connected with support frame of box outer wall, the left outer wall of box is provided with the chamber door, the upper and lower both ends of chamber door right side outer wall are connected with the outer wall rotation of box through the hinge, the position at chamber door middle part is provided with the visual window.
(III) beneficial effects
The invention provides a device for cooling a plastic plate. The beneficial effects are as follows:
(1) This a device for plastic slab cooling, after waiting injection moulding's plastic slab has certain initial strength, open the chamber door, insert the plastic slab interval in first spout and the second spout, first spout and second spout are fixed the plastic slab, then close the chamber door, water inlet and running water interface connection with the water tank, open the valve of spray pipe and delivery port, open miniature pressure pump, the water in the water tank gets into the drain pipe, miniature pressure pump is pressed water into first shower nozzle with water pressure, the water in the water tank gets into the water storage chamber through the delivery port, first shower nozzle and second shower nozzle are continuously sprayed the plastic slab, first spout is by the left side setting, the second spout is by the right side setting, the through-hole has all been seted up to the inside of first backup pad and second backup pad, make rivers flow more smoothly, water accumulation is in first backup pad and second backup pad when avoiding the water yield too big, can cool down the side of plastic slab through first through-port and second port, make the outer wall of plastic slab evenly receive the cold, the frame can cool down five plastic slabs simultaneously at any time, through can observe the cooling condition, the cooling efficiency of even cooling plate has been reached, the cooling efficiency of plastic slab is high.
(2) This be used for cold device of plastic slab, the water after spraying falls into the basin in, then in entering water circulating device through the drain pipe, after the filtration of filter pulp and active carbon, gets into the play water cavity, opens circulating water pump, and under circulating water pump's effect, the water in the play water cavity gets into the water tank through the back flow in, carries out used repeatedly, and the overflow pipe prevents that the water level from crossing the basin, has reached cyclic utilization water resource's purpose, saves the water resource.
Drawings
FIG. 1 is a schematic view of an apparatus for cooling a plastic sheet according to the present invention;
FIG. 2 is a schematic view of the spray rack structure of the present invention;
FIG. 3 is a left side view of the spray rack of the present invention;
FIG. 4 is a schematic view of a sprinkler tube according to the present invention;
FIG. 5 is a schematic view of the structure of the water tank of the present invention;
fig. 6 is a schematic view of the structure of the water circulation device of the present invention.
In the figure: 1 box, 2 basin, 3 spray frame, 4 bracing piece, 5 first backup pad, 6 second backup pad, 7 first spout, 8 second spout, 9 spray pipe, 10 first shower nozzle, 11 water tank, 12 drain pipe, 13 water circulating device, 14 first through-mouths, 15 second through-mouths, 16 miniature pressure pump, 17 delivery port, 18 water storage chamber, 19 second shower nozzle, 20 overflow pipe, 21 filter pulp, 22 first baffle, 23 active carbon, 24 second baffle, 25 water outlet chamber, 26 circulating water pump, 27 back flow, 28 water inlet, 29 support frame, 30 chamber, 31 visual window.
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.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a be used for refrigerated device of plastic slab, including box 1, the bottom of box 1 inner wall is provided with basin 2, the position at box 1 intracavity middle part is provided with sprays 3, the left and right sides symmetry of spraying 3 is provided with bracing piece 4, the bottom of bracing piece 4 and the inner wall fixed connection of basin 2, be provided with first backup pad 5 and second backup pad 6 between the bracing piece 4, first backup pad 5 and second backup pad 6 interval each other set up, both ends all with bracing piece 4 fixed connection about first backup pad 5 and second backup pad 6, the position symmetry in first backup pad 5 upper surface left side is provided with first spout 7, the bottom and the 5 fixed connection of first backup pad that have first spout 7, the position symmetry on second backup pad 6 upper surface right side is provided with second spout 8, the bottom and the 6 fixed connection of second spout 8, the inner wall symmetry of box 1 left and right sides is provided with spray pipe 9, one side that spray pipe 9 is close to box 1 inner wall and the inner wall fixed connection of box 1, the lower interval of one side that spray pipe 9 kept away from box 1 inner wall is provided with first spout 10, the position of spray pipe 1 upper surface 10 is provided with water tank 11 and water tank 11 on the side of water tank 1, the water tank side is connected with water tank 11, the water tank 1 side is kept away from in the water tank side intercommunication, the water tank 1 side is connected with water tank 11.
The front end face of the outer wall of the box body 1 is communicated with the outside, four supporting rods 4 are symmetrically arranged, three first supporting plates 5 are arranged, two second supporting plates 6 are arranged, and through holes are formed in the first supporting plates 5 and the second supporting plates 6.
The positions of the outer wall middle parts on the left side and the right side of the first chute 7 are provided with first through holes 14, and the positions of the outer wall middle parts on the left side and the right side of the second chute 8 are provided with second through holes 15.
The inner wall of the spray pipe 9 and the positions corresponding to the first spray heads 10 are fixedly connected with miniature pressure pumps 16, the left ends of the miniature pressure pumps 16 are communicated with the inside of the spray pipe 9, and the right ends of the miniature pressure pumps 16 are communicated with the first spray heads 10.
The middle part of the lower surface of the water tank 11 is communicated with a water outlet 17, the lower end of the water outlet 17 is communicated with a water storage cavity 18, the lower surface of the water storage cavity 18 is provided with second spray heads 19 at intervals, and the upper ends of the second spray heads 19 are communicated with the inside of the water storage cavity 18.
The end of the spray pipe 9 close to the water tank 11 and the end of the water outlet 17 close to the water tank 11 are both provided with valves.
The upper end of the drain pipe 12 is provided with an overflow pipe 20, the right end of the overflow pipe 20 is communicated with the drain pipe 12, and the overflow pipe 20 and the left end of the drain pipe 12 are both communicated with the inside of the water tank 2.
The upper end in the hydrologic cycle device 13 intracavity is filled with filter pulp 21, and the lower extreme of filter pulp 21 is provided with first baffle 22, and the lower extreme of first baffle 22 is evenly filled with active carbon 23, and the lower extreme of active carbon 23 is provided with second baffle 24, and both ends are all fixed connection with the inner wall of hydrologic cycle device 13 about first baffle 22 and second baffle 24, and the through-hole has all been seted up to the inside of first baffle 22 and second baffle 24, and the lower extreme of second baffle 24 is provided with out water cavity 25.
The upper end on the right side of the outer wall of the water tank 11 is provided with a circulating water pump 26, the left end of the circulating water pump 26 is communicated with the inside of the water tank 11, the right end of the circulating water pump 26 is communicated with a return pipe 27, one end, far away from the circulating water pump 26, of the return pipe 27 penetrates through the water circulation device 13 and stretches into the right side of the inside of the water outlet cavity 25, the outer wall, close to one side of the box body 1, of the return pipe 27 is fixedly connected with the outer wall of the box body 1, and the upper end of the left outer wall of the water tank 11 is provided with a water inlet 28.
The bottom fixedly connected with support frame 29 of box 1 outer wall, the left outer wall of box 1 is provided with chamber door 30, and the upper and lower both ends of chamber door 30 right side outer wall are connected with the outer wall rotation of box 1 through the hinge, and the position at chamber door 30 middle part is provided with visual window 31.
When the plastic plate injection molding machine is used, after the plastic plate to be injection molded has certain initial strength, the box door 30 is opened, the plastic plate is inserted into the first chute 7 and the second chute 8 at intervals, the first chute 7 and the second chute 8 fix the plastic plate, then the box door 30 is closed, the water inlet 28 of the water tank 11 is connected with a tap water interface, the valves of the spray pipe 9 and the water outlet 17 are opened, the micro pressure pump 16 is opened, water in the water tank 11 enters the water drain pipe 12, the micro pressure pump 16 presses the water into the first spray head 10, the water in the water tank 11 enters the water storage cavity 18 through the water outlet 17, the first spray head 10 and the second spray head 19 continuously spray the plastic plate, the first chute 7 is arranged near the left side, the second chute 8 is arranged near the right side, through holes are formed in the first support plate 5 and the second support plate 6, water flows more smoothly, the side edges of the plastic plate can be prevented from being accumulated on the first support plate 5 and the second support plate 6 when the water quantity is overlarge, the outer wall of the plastic plate is uniformly cooled through the first through hole 14 and the second through hole 15, the outer wall of the plastic plate can be cooled, the five plastic plates can be cooled at the same time, and the cooling window 31 can be observed at any time;
The sprayed water falls into the water tank 2, then enters the water circulation device 13 through the water discharge pipe 12, enters the water outlet cavity 25 after being filtered by the filter cotton 21 and the activated carbon 23, and opens the circulating water pump 26, and under the action of the circulating water pump 26, the water in the water outlet cavity 25 enters the water tank 11 through the return pipe 27 for repeated use, and the overflow pipe 20 prevents the water level from overflowing the water tank 2.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. Device for cooling plastic panels, comprising a casing (1), characterized in that: the utility model discloses a shower nozzle, including box (1) inner wall, basin (2) are provided with in the bottom of box (1) inner wall, the position at box (1) intracavity middle part is provided with spray frame (3), the left and right sides symmetry of spray frame (3) is provided with bracing piece (4), the bottom of bracing piece (4) and the inner wall fixed connection of basin (2), be provided with first backup pad (5) and second backup pad (6) between bracing piece (4), the mutual interval setting of first backup pad (5) and second backup pad (6), the left and right sides both ends of first backup pad (5) and second backup pad (6) all are provided with bracing piece (4) fixed connection, the position symmetry of first backup pad (5) upper surface left side is provided with first spout (7), the bottom and first backup pad (5) fixed connection that have first spout (7), the position symmetry on second backup pad (6) upper surface right side is provided with second spout (8), the bottom and second backup pad (6) fixed connection of second spout (8), the inner wall (1) and inner wall (9) of box (1) are close to one side of a shower nozzle (1) are kept away from to one side of the shower nozzle (9), the water tank (11) is arranged in the middle of the upper surface of the box body (1), the upper end of the water spraying pipe (9) penetrates through the box body (1) and is communicated with the inside of the water tank (11), the bottom end of the outer wall of the right side of the box body (1) is communicated with the drain pipe (12), and one end, far away from the box body (1), of the drain pipe (12) is communicated with the water circulation device (13);
The upper end of the drain pipe (12) is provided with an overflow pipe (20), the right end of the overflow pipe (20) is communicated with the drain pipe (12), and the left ends of the overflow pipe (20) and the drain pipe (12) are both communicated with the inside of the water tank (2);
The utility model discloses a water circulating device, including water circulating device (13), filter pulp (21) are filled to the upper end in water circulating device (13) intracavity, the lower extreme of filter pulp (21) is provided with first baffle (22), the lower extreme of first baffle (22) is evenly filled with active carbon (23), the lower extreme of active carbon (23) is provided with second baffle (24), both ends all with the inner wall fixed connection of water circulating device (13) about first baffle (22) and second baffle (24), just the through-hole has all been seted up to the inside of first baffle (22) and second baffle (24), the lower extreme of second baffle (24) is provided with water outlet chamber (25).
2. A device for cooling plastic panels as claimed in claim 1, wherein: the front end face of the outer wall of the box body (1) is communicated with the outside, four supporting rods (4) are symmetrically arranged, three first supporting plates (5) are arranged, two second supporting plates (6) are arranged, and through holes are formed in the first supporting plates (5) and the second supporting plates (6).
3. A device for cooling plastic panels as claimed in claim 1, wherein: the first through holes (14) are formed in the middle of the outer walls on the left side and the right side of the first sliding groove (7), and the second through holes (15) are formed in the middle of the outer walls on the left side and the right side of the second sliding groove (8).
4. A device for cooling plastic panels as claimed in claim 1, wherein: the inner wall of the spray pipe (9) and the positions corresponding to the first spray heads (10) are fixedly connected with miniature pressure pumps (16), the left ends of the miniature pressure pumps (16) are communicated with the inside of the spray pipe (9), and the right ends of the miniature pressure pumps (16) are communicated with the first spray heads (10).
5. A device for cooling plastic panels as claimed in claim 1, wherein: the water tank is characterized in that a water outlet (17) is formed in the middle of the lower surface of the water tank (11), a water storage cavity (18) is formed in the lower end of the water outlet (17), second spray nozzles (19) are arranged on the lower surface of the water storage cavity (18) at intervals, and the upper ends of the second spray nozzles (19) are communicated with the inside of the water storage cavity (18).
6. A device for cooling plastic panels as claimed in claim 5, wherein: one end of the water spraying pipe (9) close to the water tank (11) and one end of the water outlet (17) close to the water tank (11) are both provided with valves.
7. A device for cooling plastic panels as claimed in claim 1, wherein: the upper end on water tank (11) outer wall right side is provided with circulating water pump (26), the left end of circulating water pump (26) communicates with the inside of water tank (11), the right-hand member intercommunication of circulating water pump (26) has back flow (27), the one end that circulating water pump (26) was kept away from to back flow (27) runs through water circulating device (13) and stretches into the inside right side of play water cavity (25), the outer wall that back flow (27) are close to one side of box (1) and the outer wall fixed connection of box (1), the upper end of water tank (11) left side outer wall is provided with water inlet (28).
8. A device for cooling plastic panels as claimed in claim 1, wherein: the bottom fixedly connected with support frame (29) of box (1) outer wall, the left outer wall of box (1) is provided with chamber door (30), the upper and lower both ends of chamber door (30) right side outer wall are rotated through the outer wall of hinge and box (1) and are connected, the position at chamber door (30) middle part is provided with visual window (31).
CN201811119818.XA 2018-09-25 2018-09-25 Device for cooling plastic plate Active CN109177099B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201811119818.XA CN109177099B (en) 2018-09-25 2018-09-25 Device for cooling plastic plate

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CN109177099A CN109177099A (en) 2019-01-11
CN109177099B true CN109177099B (en) 2024-05-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112793058A (en) * 2020-12-18 2021-05-14 田少波 Automatic device that releases and handle product during plastify piece shaping

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WO2012034294A1 (en) * 2010-09-14 2012-03-22 广东洛贝电子科技有限公司 Electric pressure cooker with quick pressure relief function
KR101246174B1 (en) * 2012-11-22 2013-03-22 (주)태종 Water cooling type input chute for incinerators
CN206089425U (en) * 2016-09-27 2017-04-12 芜湖东旭光电科技有限公司 Cooling device
CN207371299U (en) * 2017-09-21 2018-05-18 江苏瑞发新材料科技有限公司 A kind of coating machine electrical heating baking oven emission-control equipment
CN108145521A (en) * 2017-12-24 2018-06-12 乐清市驰林电气有限公司 A kind of automation drilling machine for having circulating cooling heat dissipation effect
CN108426860A (en) * 2018-03-16 2018-08-21 湖州新龙潭净水设备有限公司 A kind of movable type water quality detecting device
CN108444800A (en) * 2018-05-07 2018-08-24 金福生 A kind of sewage purification mud detection device
CN208946614U (en) * 2018-09-25 2019-06-07 连云港国旺塑业有限公司 A kind of device cooling for plastic plate

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19747903A1 (en) * 1997-10-30 1999-07-08 Rappold & Co Gmbh Hermann Cooled slider plate, in particular, water cooled slider plate for hot air ducts
WO2012034294A1 (en) * 2010-09-14 2012-03-22 广东洛贝电子科技有限公司 Electric pressure cooker with quick pressure relief function
KR101246174B1 (en) * 2012-11-22 2013-03-22 (주)태종 Water cooling type input chute for incinerators
CN206089425U (en) * 2016-09-27 2017-04-12 芜湖东旭光电科技有限公司 Cooling device
CN207371299U (en) * 2017-09-21 2018-05-18 江苏瑞发新材料科技有限公司 A kind of coating machine electrical heating baking oven emission-control equipment
CN108145521A (en) * 2017-12-24 2018-06-12 乐清市驰林电气有限公司 A kind of automation drilling machine for having circulating cooling heat dissipation effect
CN108426860A (en) * 2018-03-16 2018-08-21 湖州新龙潭净水设备有限公司 A kind of movable type water quality detecting device
CN108444800A (en) * 2018-05-07 2018-08-24 金福生 A kind of sewage purification mud detection device
CN208946614U (en) * 2018-09-25 2019-06-07 连云港国旺塑业有限公司 A kind of device cooling for plastic plate

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