CN113134933B - A mold and production process for producing double-sealed refrigerator EPS packaging lining - Google Patents
A mold and production process for producing double-sealed refrigerator EPS packaging lining Download PDFInfo
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- CN113134933B CN113134933B CN202110481683.7A CN202110481683A CN113134933B CN 113134933 B CN113134933 B CN 113134933B CN 202110481683 A CN202110481683 A CN 202110481683A CN 113134933 B CN113134933 B CN 113134933B
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000012546 transfer Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 230000000875 corresponding effect Effects 0.000 claims 10
- 230000000149 penetrating effect Effects 0.000 claims 3
- 230000002079 cooperative effect Effects 0.000 claims 1
- 229920006248 expandable polystyrene Polymers 0.000 abstract description 52
- 238000012856 packing Methods 0.000 description 55
- 239000000047 product Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 241000282472 Canis lupus familiaris Species 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000011895 specific detection Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/34—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/049—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using steam or damp
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3492—Expanding without a foaming agent
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a die for producing EPS (expandable polystyrene) packaging liners of double-seal refrigerators and a production process, comprising a moving die and a fixed die, wherein a bottom plate correspondingly attached to the inner side surface of the bottom of the moving die is arranged on the side edge of the periphery of the fixed die, a bottom die is arranged at the top of the bottom plate, a packaging liner is arranged between the moving die and the bottom die, a cover plate is arranged on the top surface of the moving die, a plurality of air cylinders are arranged on the surface of the cover plate, a plurality of material guns are arranged on the outer sides of the air cylinders, the bottom ends of the material guns penetrate through the cover plate, a plurality of ejector pins are further arranged on the top surface of the cover plate, and the ejector pins penetrate through the cover plate. According to the invention, through rectifying and modifying the die, the local independent space in the die moving and die fixing is realized, different EPS raw materials are injected into the independent space through the material gun, and the different EPS raw materials are seamlessly fused in a transverse steam heating mode and a double-sided steam heating mode, so that the problems of the performance and the cost of the product are solved, and the customer needs are met.
Description
Technical Field
The invention belongs to the technical field of packaging equipment, and particularly relates to a die for producing EPS packaging liners of a double-seal refrigerator and a production process.
Background
The product package refers to a general term for decoration attached to a product by adopting a container, materials, auxiliary objects and the like according to a certain technical method in order to protect the product, facilitate storage and promote sales in the circulation process of product transportation, storage, sales and the like. The product package is not only beneficial to ensuring the safety and the product quality of special products, but also can well protect the legal rights and interests of the warehouse, the carrier, the seller and the consumer of the products.
At present, in the using process of many packaged products, the contact part between the packaged products and household appliances often has insufficient buffering performance.
Currently, the solution is 1 to increase the overall raw material properties, which increases the cost of the package. 2. Locally installing paper corner protectors or installing reinforcing inserts can increase labor and material costs.
Therefore, it is necessary to invent a mold for producing EPS packing liners of double-sealed refrigerators and a production process thereof to solve the above problems.
Disclosure of Invention
The invention provides a die for producing EPS packaging liners of double-seal refrigerators and a production process thereof, aiming at the problems in the prior art.
In order to achieve the purpose, the mold for producing the EPS packaging lining of the double-seal refrigerator comprises a movable mold and a fixed mold, wherein a bottom plate which is correspondingly attached to the inner side surface of the bottom of the movable mold is arranged on the side edge of the periphery of the fixed mold, a bottom mold is arranged on the top of the bottom plate, a packaging lining is arranged between the movable mold and the bottom mold, a cover plate is arranged on the top surface of the movable mold, a plurality of air cylinders are arranged on the surface of the cover plate, the number of the air cylinders is four, the four air cylinders are respectively arranged at the corners of the periphery of the top of the cover plate, the air cylinders penetrate through the cover plate, the output end of each air cylinder is arranged on the inner side of the movable mold, a plurality of material guns are arranged on the outer side of each air cylinder, the bottom ends of the material guns penetrate through the cover plate, a plurality of ejector pins are further arranged on the top surface of the cover plate, and the ejector pins penetrate through the cover plate.
Further, the cylinder output is provided with the dog, and four dogs are in four corners of mould moving respectively, and four dog bottom laminate with the corner of packing lining top surface respectively.
Further, the whole appearance of the stop block is provided with an L-shaped bending plate, the bending part of the stop block is provided with a flitch, the output end of the air cylinder is fixedly connected with the flitch of the bending part of the stop block, and the flitch and the stop block are integrally arranged;
The end parts of the stop blocks are respectively arranged corresponding to the adjacent side walls in the movable mould, and the stop blocks are arranged between the cover plate and the packing lining.
Further, a double-top bump is arranged at the center of the top surface of the bottom die, a double-hole groove is arranged at the center of the packaging lining, and the double-top bump is correspondingly buckled with the double-hole groove;
Further, limiting plates are arranged at the centers of the inner sides of the double-hole grooves, the limiting plates are correspondingly buckled with the centers of the double-top protruding blocks, the top surfaces of the limiting plates are flush with the top surface of the packaging lining, the top ends of the double-top protruding blocks penetrate through the double-hole grooves, and the heights of the double-top protruding blocks are larger than the thickness of the packaging lining.
Further, clamping strips are arranged on two side edges of the packaging substrate, clamping grooves corresponding to the clamping strips are arranged on two side edges of the top surface of the bottom die, and the width and the length of the bottom die are the same as those of the packaging substrate.
Further, the surface of the packing lining is provided with corresponding holes, the corresponding holes are arranged on one side of the stop block, the corresponding holes are arranged on one side of the double-hole groove, the top surface of the bottom die is provided with corresponding blocks which are correspondingly matched with the corresponding holes, and the corresponding blocks are arranged on one side of the double-top protruding block.
The invention also provides a production process for producing the double-seal refrigerator EPS packaging lining, which adopts the die for producing the double-seal refrigerator EPS packaging lining and comprises the following steps of:
Assembling a moving die and a fixed die, processing EPS raw materials, and then introducing the processed EPS raw materials between the moving die and the fixed die through a material gun;
steam heating is carried out on the surfaces of the moving die and the fixed die, so that EPS raw materials are sintered;
Shaping the sintered EPS raw material in a water cooling and vacuum stabilizing mode;
Under the cooperation of the air cylinder and the thimble, the shaped EPS raw material is demolded to form the packing lining.
Furthermore, before the steam heating is performed on the surfaces of the moving die and the fixed die, the EPS raw material needs to be detected, and the specific detection steps include:
judging whether the raw material density and the raw material model accord with the actual numerical value of the set parameters;
If the actual values are not met, cleaning the rest EPS raw materials, and then adding the EPS raw materials meeting the actual values of the set parameters to the input end of the gun;
if the mold is matched with the mold, steam heating is carried out on the surfaces of the mold moving and the mold fixing.
The invention has the technical effects and advantages that:
1. according to the invention, through rectifying and modifying the die, the local independent space in the die moving and die fixing is realized, different EPS raw materials are injected into the independent space through the material gun, and the different EPS raw materials are seamlessly fused in a transverse steam heating mode and a double-sided steam heating mode, so that the problems of the performance and the cost of the product are solved, and the customer needs are met.
2. According to the invention, the air cylinders distributed at the four corners of the cover plate are respectively in butt joint with the four corners of the top surface of the packing lining through the four stop blocks, and the four air cylinders work simultaneously, so that the packing lining is in a horizontal state in the moving die, and the situation that the packing lining is inclined is avoided.
3. According to the invention, when the packaging lining is pushed out of the inside of the shifting die through the ejector pin, the stop block with the L-shaped structure can be quickly separated from the top surface of the packaging lining, so that the packaging lining can be quickly separated from the shifting die and the stop block, the quick production effect of the packaging lining is ensured, the L-shaped structure enhances the strength of the stop block, and meanwhile, the contact area between the stop block and the packaging lining is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic diagram of the overall three-dimensional structure of a die for producing an EPS packing liner of a double-seal refrigerator according to an embodiment of the invention;
FIG. 2 shows a schematic perspective view of a mold transfer and packing liner combination in accordance with an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a block and liner combination according to an embodiment of the present invention;
FIG. 4 shows a schematic perspective view of a packing liner of an embodiment of the present invention;
FIG. 5 shows a schematic diagram of a production process flow for producing EPS packing liners of double-seal refrigerators in accordance with an embodiment of the present invention;
the drawing comprises a drawing 1, a moving die, a die 2, a die fixing, a bottom plate, a bottom die 4, a packing lining 5, a cover plate 6, a cylinder 7, a material gun 8, a thimble 9, a 10, a stop block 11, a double-top lug 12, a double-hole groove 13, a limiting plate 14, a clamping strip 15, a clamping groove 16 and a corresponding hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. 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.
The invention provides a die for producing EPS packaging liners of double-seal refrigerators, which is shown in figure 1 and comprises a movable die 1 and a fixed die 2, wherein bottom plates 3 correspondingly attached to the inner side surfaces of the bottoms of the movable die 1 are arranged on the side edges of the periphery of the fixed die 2. The movable mould 1 cover is placed at the top of the fixed mould 2, the peripheral side faces of the movable mould 1 are correspondingly flush with the peripheral side faces of the fixed mould 2, and the outer side faces of the bottom plates 3 of the inner side faces of the movable mould 1 are correspondingly attached through the matching of the movable mould 1 and the bottom plates 3, so that the movable mould 1 and the fixed mould 2 are in a sealing state, EPS raw materials are prevented from flowing out from gaps between the movable mould 1 and the fixed mould 2, and the packing lining 5 is conveniently shaped and solidified in the movable mould 1.
The bottom die 4 is arranged at the top of the bottom plate 3. The bottom die 4 is arranged at the center of the top of the bottom plate 3, and the bottom surface of the packaging liner 5 can be subjected to shaping treatment through the bottom die 4, so that the bottom surface of the packaging liner 5 is correspondingly matched with the bottom of the household appliance, and the buffering effect of the household appliance on the surface of the packaging liner 5 is ensured. A packing lining 5 is arranged between the moving die 1 and the bottom die 4, a cover plate 6 is arranged on the top surface of the moving die 1, a plurality of air cylinders 7 are arranged on the surface of the cover plate 6, a plurality of material guns 8 are arranged on the outer sides of the air cylinders 7, and the bottom ends of the material guns 8 penetrate through the cover plate 6. The quantity of material rifle 8 sets up to nine, and material rifle 8 installs at apron 6 top surface according to 3×3's order, when adding EPS raw materials to moving mould 1 inside through material rifle 8, can be according to the different of the required raw materials in each position of packing lining 5, the material rifle 8 in different positions can add different EPS raw materials at the different positions at die block 4 top, can make the raw materials sintering of different density together to make the buffering effect change in each position of packing lining 5 obvious, make seamless connection between the different raw materials, thereby reduce the resource and the energy consumption of production packing lining 5. And the top surface of the cover plate 6 is also provided with a plurality of ejector pins 9, and the ejector pins 9 penetrate through the cover plate 6. When the packing lining 5 is separated from the bottom die 4 through the air cylinder 7, the movable die 1 is taken down from the top of the fixed die 2, then the packing lining 5 is ejected out of the inner side of the movable die 1 through the ejector pins 9, and the whole production process of the packing lining 5 is completed.
As shown in fig. 1, the number of the air cylinders 7 is four, the four air cylinders 7 are respectively positioned at the corners of the periphery of the top of the cover plate 6, the air cylinders 7 penetrate through the cover plate 6, the output ends of the air cylinders 7 are positioned at the inner side of the movable mould 1, the air cylinders 7 distributed at the four corners of the cover plate 6 are respectively in butt joint with the four corners of the top surface of the packing lining 5 through four stop blocks 10, and the four air cylinders 7 work simultaneously, so that the packing lining 5 is always in a horizontal state in the movable mould 1, and the situation that the packing lining 5 is inclined in the movable mould 1 is avoided.
The output end of the air cylinder 7 is provided with a stop block 10, the four stop blocks 10 are respectively positioned at four corners of the movable mould 1, and the bottom ends of the four stop blocks 10 are respectively attached to the corners of the top surface of the packaging lining 5. For example, when only one cylinder 7 works to drive the packing lining 5 to move inside the moving mold 1 through the stop block 10, the packing lining 5 inevitably shifts inside the moving mold 1, and extrusion force is generated between the side edge of the packing lining 5 and the inner side wall of the moving mold 1, so that sliding friction force between the side edge of the packing lining 5 and the inner side wall of the moving mold 1 is increased, sliding abrasion of the packing lining 5 is increased, and production of the packing lining 5 is further affected. The packing lining 5 is driven to move in the movable mould 1 through the stop blocks 10 through the four air cylinders 7, friction is generated between the side edges of the packing lining 5 and the inner wall of the movable mould 1, and compared with the inclined condition, no pressure exists between the horizontally arranged packing lining 5 and the inner wall of the movable mould 1 to increase friction force, so that production loss of the packing lining 5 is reduced.
As shown in fig. 2 and 3, the overall shape of the stop block 10 is an L-shaped bent plate, a flitch is arranged at the bending part of the stop block 10, the output end of the air cylinder 7 is fixedly connected with the flitch at the bending part of the stop block 10, the flitch and the stop block 10 are integrally arranged, and the L-shaped structure enhances the strength of the stop block 10 and simultaneously reduces the contact area between the stop block 10 and the packaging lining 5. When the ejector pin 9 enters the movable mould 1, the bottom end of the ejector pin 9 is in contact with the top surface of the packing lining 5, and the packing lining 5 is ejected out of the movable mould 1 through the ejector pin 9, the stop block 10 with the L-shaped structure can be quickly separated from the top surface of the packing lining 5, so that the packing lining 5 can be quickly separated from the movable mould 1 and the stop block 10, and the quick production effect of the packing lining 5 is ensured. The end parts of the stop blocks 10 are respectively arranged corresponding to adjacent side walls inside the movable mould 1, and the stop blocks 10 are arranged between the cover plate 6 and the packing lining 5.
As shown in fig. 2,3 and 4, a double-top bump 11 is arranged at the center of the top surface of the bottom die 4, a double-hole groove 12 is arranged at the center of the packaging liner 5, the double-top bump 11 is correspondingly buckled with the double-hole groove 12, a limiting plate 13 is arranged at the center of the inner side of the double-hole groove 12, the limiting plate 13 is correspondingly buckled with the center of the double-top bump 11, the top surface of the limiting plate 13 is flush with the top surface of the packaging liner 5, the top end of the double-top bump 11 penetrates through the double-hole groove 12, and the height of the double-top bump 11 is larger than the thickness of the packaging liner 5. When the EPS raw materials are formed in the movable mould 1, the stacking height of the EPS raw materials in the movable mould 1 does not exceed the top surface of the double-top protruding block 11, and then the double-top protruding block 11 is matched with the packaging lining 5, so that a double-hole groove 12 is formed in the top surface of the packaging lining 5. The center department of two top lugs 11 is provided with the bar groove, and EPS raw materials forms limiting plate 13 at the inside bar groove, can save the quantity of EPS raw materials through two top lugs 11, and increases the bulk strength of packing lining 5 through limiting plate 13, and when packing lining 5 supported the household electrical appliances, increased the effect of making of packing lining 5 to the household electrical appliances through limiting plate 13, also increased packing lining 5 holistic buffer strength.
As shown in FIG. 3, two sides of the bottom of the packing lining 5 are respectively provided with a clamping strip 14, two sides of the top surface of the bottom die 4 are respectively provided with a clamping groove 15 which is correspondingly matched with the clamping strips 14, the width and the length of the bottom die 4 and the packing lining 5 are the same, the clamping strips 14 are matched with the clamping grooves 15, so that the bottom of the packing lining 5 forms a placing plate required by an electric appliance, the matching effect of the packing lining 5 and the bottom of the electric appliance is improved, the actual corresponding direction of the packing lining 5 can be increased through the clamping strips 14, the corresponding position of the packing lining 5 can be quickly adjusted according to the placing position of the electric appliance, and the placing effect of the electric appliance and the packing lining 5 is improved.
The surface of the packing lining 5 is provided with corresponding holes 16, the corresponding holes 16 are positioned on one side of the stop block 10, the corresponding holes 16 are positioned on one side of the double-hole groove 12, the top surface of the bottom die 4 is provided with corresponding blocks which are correspondingly matched with the corresponding holes 16, and the corresponding blocks are positioned on one side of the double-top protruding block 11. Through the cooperation of corresponding piece and corresponding hole 16, the cooperation of two top lugs 11 and two hole recesses 12 for packing lining 5 can be stable be in die block 4 top, and EPS raw materials permeates in each position at die block 4 top, thereby forms packing lining 5 according to the appearance of die block 4. When EPS raw materials are introduced into the top of the bottom die 4 through the material gun 8, different EPS raw materials can be introduced into different positions of the bottom die 4 through different material guns 8 according to actual demands.
The invention also provides a production process for producing the double-seal refrigerator EPS packaging lining, which adopts the die for producing the double-seal refrigerator EPS packaging lining and comprises the following steps of:
Assembling the movable mould 1 and the fixed mould 2. After the movable mould 1 is placed on the top of the fixed mould 2, after the bottom of the movable mould 1 is correspondingly placed on four sides of the bottom plate 3, an air cylinder 7, a material gun 8 and a thimble 9 are installed on the surface of the cover plate 6, and then the cover plate 6 is correspondingly placed on the top opening of the movable mould 1, so that the assembling process of the movable mould 1 and the fixed mould 2 is played.
Processing EPS raw materials, exemplary EPS raw materials processing comprises the following steps:
1. checking that the steam pressure of the main pipeline is 0.4-0.45 mpa, and checking that the air pressure is 0.4-0.6 mpa after decompression is performed within the range of 0.06-0.1 mpa.
2. Determining the specification and model of the raw material to be pre-developed, moving the raw material bag to a platform above a hopper, firstly cutting the seam line on the raw material bag by a blade, collecting the disassembled line, strictly forbidden lines falling into the raw material, cutting the inner bag sealing blade of the raw material bag, and pouring the raw material into the hopper.
3. And carrying out various parameters such as set time, pressure and the like according to the set parameters.
4. Semi-automatic foaming is carried out on EPS raw materials, and the accuracy of density is required to be tested every cycle. According to the deviation condition, the feeding weight is modified, and then the foaming of the next period is carried out. And after the weight value corresponding to the density is adjusted and matched, full-automatic production can be performed. The dosage is decreased when the measured density is higher than the pre-firing standard, and increased when the measured density is lower than the pre-firing standard. (measuring method: original charged weight x target density/(measured density = adjusted charged amount).
5. And observing a second vibrating rod of the material level indicator, so that the material level indicator works normally.
6. When the first period heating is finished, when the machine opens the discharging door, the drying motor, the vibrating motor, the turning plate motor and the feeding fan are started in sequence, so that EPS raw materials after the first period heating is finished are collected.
7. And detecting the density of the raw materials, namely automatically sampling a discharging valve in the middle of the fluidized bed, filling the graduated flask, removing the raw materials higher than the graduated flask by using a ruler, checking the uniformity of foaming, and judging whether the appearance is cracked, shrunk and wrinkled.
8. And (5) confirming whether the material in the curing bin meets the requirements of curing standards.
9. And (5) butting the conveying pipe with a required conveying pipeline of the forming machine, and ensuring that each conveying link is airtight.
Then the processed EPS raw material is introduced between the movable die 1 and the fixed die 2 through a material gun 8;
Steam heating is carried out on the surfaces of the movable mould 1 and the fixed mould 2, so that EPS raw materials are sintered;
Shaping the sintered EPS raw material in a water cooling and vacuum stabilizing mode;
under the matching action of the air cylinder 7 and the thimble 9, the shaped EPS raw material is demoulded to form the packing lining 5.
Furthermore, before the steam heating is performed on the surfaces of the moving die 1 and the fixed die 2, the EPS raw material needs to be detected, and the specific detection steps include:
judging whether the raw material density and the raw material model accord with the actual numerical value of the set parameters;
If the actual values do not accord with the set parameters, the residual EPS raw materials are cleaned, and then the EPS raw materials accord with the actual values of the set parameters are added to the input end of the gun 8;
if the surface of the movable mould 1 and the surface of the fixed mould 2 are matched, steam heating is carried out.
When the EPS raw materials are sintered, EPS particles are sintered together by using a mode of transverse steam heating and double-sided steam heating, and then the packaging lining 5 is formed on the inner side of the moving die 1 through water cooling and vacuum stabilization.
According to the invention, the mould is modified to realize the local independent space in the moving mould 1 and the fixed mould 2, different EPS raw materials are injected into the independent space through the material gun 8, and the different EPS raw materials are seamlessly fused in a transverse steam heating mode and a double-sided steam heating mode, so that the problems of the performance and the cost of the product are solved, and the requirements of customers are met.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications may be made to the technical solutions described in the foregoing embodiments or equivalents may be substituted for some of the technical features thereof, and that such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention in essence of the corresponding technical solutions.
Claims (6)
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| CN210969635U (en) * | 2019-11-15 | 2020-07-10 | 杭州高福机械制造有限公司 | Microwave heating foaming forming mechanism |
| CN215359513U (en) * | 2021-04-30 | 2021-12-31 | 合肥海景包装制品有限公司 | A mold for producing double-sealed refrigerator EPS packaging lining |
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| US6863850B2 (en) * | 2002-10-16 | 2005-03-08 | Lear Corporation | Method and apparatus for injection foam molding |
| JP4434996B2 (en) * | 2005-03-07 | 2010-03-17 | 株式会社プライムポリマー | Sound absorber manufacturing method, sound absorber obtained by this manufacturing method, and sound absorbing structure |
| WO2018006867A1 (en) * | 2016-07-08 | 2018-01-11 | 青岛海尔洗衣机有限公司 | Upper package cushion for use with washing machine, and package cushions for packaging inner and outer tubs of washing machine |
| CN109591243A (en) * | 2018-11-23 | 2019-04-09 | 苏州富顺新型包装材料股份有限公司 | A kind of the mirror surface moulding process and its application of foaming plastics product |
| CN110154305A (en) * | 2019-06-21 | 2019-08-23 | 库尔特机电设备（珠海）有限公司 | A device for making foam plastic using radio frequency and its working method |
| CN211591112U (en) * | 2019-12-09 | 2020-09-29 | 青岛双益塑料制品有限公司 | Overflow type injection mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210969635U (en) * | 2019-11-15 | 2020-07-10 | 杭州高福机械制造有限公司 | Microwave heating foaming forming mechanism |
| CN215359513U (en) * | 2021-04-30 | 2021-12-31 | 合肥海景包装制品有限公司 | A mold for producing double-sealed refrigerator EPS packaging lining |
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