CN116766548A - Degradable plastic material and preparation process thereof - Google Patents
Degradable plastic material and preparation process thereof Download PDFInfo
- Publication number
- CN116766548A CN116766548A CN202210400269.3A CN202210400269A CN116766548A CN 116766548 A CN116766548 A CN 116766548A CN 202210400269 A CN202210400269 A CN 202210400269A CN 116766548 A CN116766548 A CN 116766548A
- Authority
- CN
- China
- Prior art keywords
- plastic material
- plate
- degradable plastic
- degradable
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 58
- 229920006238 degradable plastic Polymers 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000004033 plastic Substances 0.000 claims abstract description 65
- 229920003023 plastic Polymers 0.000 claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 8
- 238000006731 degradation reaction Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/08—Means for actuating the cutting member to effect the cut
- B26D5/12—Fluid-pressure means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/10—Means for treating work or cutting member to facilitate cutting by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
- B26F1/14—Punching tools; Punching dies
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
Abstract
The application relates to the technical field of degradable plastic material production, in particular to a degradable plastic material and a preparation process thereof; the degradable plastic material comprises a plastic block and a plurality of stripe grooves which are arranged on the plastic block in a staggered manner, wherein a round hole is formed in the plastic block, and a plurality of teeth are circumferentially arranged in the round hole; the preparation process for preparing the degradable plastic material comprises the following steps: manufacturing a plastic block from a degradable plastic material raw material through extrusion equipment; step two: cutting stripe grooves on the rubber block in a crossed manner; step three: positioning and clamping the plastic block, and processing a circular hole with teeth by using a preparation device to obtain a plastic material; step four: sorting and packaging the processed plastic materials; can prepare the degradable plastic material with higher degradation speed and higher practicability.
Description
Technical Field
The application relates to the technical field of degradable plastic material production, in particular to a degradable plastic material and a preparation process thereof.
Background
The degradable plastic is a plastic which can meet the use requirements of various properties of products, has unchanged properties in the storage period and can degrade substances harmless to the environment under the natural environment condition after being used. Thus, also known as environmentally degradable plastics; however, degradation of the degradable plastic is affected by many factors, such as limited contact area with sunlight and air, incapability of timely degradation inside, etc., so that the degradation period is long and the degradation degree is limited;
therefore, the object manufactured by the existing degradable plastic is slow in degradation speed after being used, and the manufactured object is single in function and is easy to cause resource waste.
Disclosure of Invention
In order to overcome the defects of the prior art, the application provides the degradable plastic material and the preparation process thereof, and the degradable plastic material with higher degradation speed and practicability can be prepared.
The technical scheme adopted for solving the technical problems is as follows:
a process for preparing a degradable plastic material, the process comprising the steps of:
step one: manufacturing a plastic block from a degradable plastic material raw material through extrusion equipment;
step two: cutting stripe grooves on the rubber block in a crossed manner;
step three: positioning and clamping the plastic block, and processing a circular hole with teeth by using a preparation device to obtain a plastic material;
step four: sorting and packaging the processed plastic materials.
Preferably, the preparation device comprises a flat plate, a cutter tube fixed on the flat plate and used for processing a round hole with teeth, and a pressing plate sliding on the flat plate, wherein a tension spring is connected between the pressing plate and the flat plate.
Preferably, the preparation device further comprises two side plates fixed on the bottom plate and a plurality of plugboards arranged on each side plate, the plugboards on the two side plates are staggered with each other, through holes are formed in the bottom plate, and one end of each plugboard is arc-shaped.
The degradable plastic material prepared by the preparation method of the degradable plastic material comprises a plastic block and a plurality of stripe grooves which are arranged on the plastic block in a staggered manner, wherein round holes are formed in the plastic block, and a plurality of teeth are circumferentially arranged in the round holes.
Drawings
The application will be described in further detail with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic diagram of a process for preparing a degradable plastic material according to the present application;
FIG. 2 is a schematic illustration of a degradable plastic material of the present application;
FIG. 3 is a schematic representation of another degradable plastic material of the present application;
FIG. 4 is a schematic view of a manufacturing apparatus according to the present application;
FIG. 5 is a schematic view of a knife tube and platen in accordance with the present application;
FIG. 6 is a schematic view of a via and interposer of the present application;
FIG. 7 is a schematic view of a board according to the present application;
FIG. 8 is a schematic view of a ring and heater wire according to the present application;
FIG. 9 is a schematic view of a portion of a manufacturing apparatus according to the present application;
FIG. 10 is a schematic view of a contact block according to the present application;
FIG. 11 is a schematic view of a trough and push plate of the present application;
FIG. 12 is a schematic view of a stockslope and a pallet according to the present application.
Detailed Description
One exemplary use that may be made of degradable plastic materials according to the structure and content shown in fig. 2 and 3 is:
the degradable plastic material comprises a plastic block, wherein a plurality of stripe grooves are uniformly and alternately arranged on two sides of the plastic block, a round hole is formed in the middle of the plastic block, and a plurality of teeth are circumferentially arranged in the round hole; the degradable plastic material of the present application can be applied to various fields, for example: the structure of the self-cube can be used as a cushion block to support an object; one end of the rod-shaped object can be inserted into the round hole provided with the plurality of teeth, the degradable plastic material is used for wrapping one end of the rod-shaped object for protection, and meanwhile, the plurality of teeth can be used for enhancing the friction force between the rod-shaped object and the round hole, so that the degradable plastic material is prevented from falling off automatically; the object pressed on the degradable plastic material can be buffered by utilizing the interaction of the plurality of stripe grooves when the plurality of stripe grooves are parallel to the placing plane; the edges of the plate can be inserted into the plurality of stripe grooves for protection, and the side edges of the plate can be supported and protected by the plurality of stripe grooves; the device can also be used for placing tools such as paper, cards and the like on a table top and placing and concentrating the tools in a plurality of stripe grooves;
meanwhile, the structure of the degradable plastic material can lighten the whole quality, so that the degradable plastic material is lighter, and the degradable plastic material is broken into a plurality of sheet residues directly according to the positions of a plurality of stripe grooves after the use is finished, so that the degradation speed of the degradable plastic material in contact with light and air can be increased in a breaking way when the degradable plastic material is abandoned.
The preparation method by which the degradable plastic material can be prepared according to the content shown in fig. 1 is as follows: firstly, extruding a degradable plastic material raw material through extrusion equipment, simultaneously cutting the degradable plastic material raw material into a plurality of plastic blocks by using a cutter, after the plastic blocks are cooled, cutting stripe grooves in a cross manner on the rubber blocks, cleaning waste materials such as burrs, residues and the like generated by slight cutting after cutting, positioning and clamping the plastic blocks on a preparation device, processing circular holes with teeth by using the preparation device to obtain plastic materials, and finally sorting and packaging the processed plastic materials.
One exemplary use procedure from which the cut circular holes may be made according to the structure and content shown in fig. 2-5 is:
the preparation device comprises a flat plate 01, wherein a cutter tube 02 for processing a round hole with teeth is fixedly connected to the flat plate 01, a pressing plate 03 is connected to the flat plate 01 in a sliding manner, and a tension spring is connected between the pressing plate 03 and the flat plate 01; when the plastic block is processed, the plastic block is placed, then the flat plate 01 is held to move the cutter tube 02 to be right above the plastic block, then the cutter tube 02 is pressed downwards, a round hole with teeth is cut in the middle of the plastic block, meanwhile, when the pressing plate 03 is contacted with the plastic block, the part which is not cut off can slide on the flat plate 01 along with the pressing plate 03 when the cutter tube 02 goes deep into the plastic block, at the moment, the tension spring is stretched, when each layer in the plastic block is cut off, the pressing plate 03 can downwards press the cut part under the action of the tension spring, and finally when the cutter tube 02 cuts through the plastic block, the pressing plate 03 pushes out all the cut parts, so that the cut waste is prevented from being clamped inside the cutter tube 02.
One exemplary use that may be made in accordance with the construction and content shown in fig. 2-5 to avoid cutting round holes to skew a plastic block is:
the preparation device further comprises two side plates 13, the two side plates 13 are fixedly connected to the bottom plate 14, a plurality of inserting plates 16 are arranged on each side plate 13, the inserting plates 16 on the two side plates 13 are mutually staggered, through holes 15 are formed in the bottom plate 14, before round holes are cut, plastic blocks are pushed into the space between the two side plates 13 from the side surfaces, at the moment, the plurality of inserting plates 16 on the two side plates 13 can enter a plurality of stripe grooves on two sides of the plastic blocks, so that the upper surface and the lower surface of each stripe groove are contacted with the upper surface and the lower surface of the corresponding inserting plate 16, the inserting plates 16 support the plastic block parts on the upper side and the lower side of the stripe groove, and the plastic blocks are prevented from being bent by pressing the cutting pipe 02; meanwhile, the plastic block is prevented from being skewed;
and one end of the plugboard 16 is arc-shaped, when the plastic block enters the middle of the two side plates 13 from the end of the plugboard 16, the arc-shaped plugboard 16 can be utilized to smoothly enter a plurality of stripe grooves, so that the situation that the plastic block is blocked and cannot smoothly enter is avoided.
One exemplary use that may be made to quickly locate a plastic block based on the structure and content shown in fig. 2-11 is:
the preparation device further comprises a trough 17 fixed on the bottom plate 14 and a push plate 18 sliding in the trough 17, wherein a spring is connected between the trough 17 and the push plate 18; when the plastic blocks are filled, the push plate 18 is pulled outwards, the springs are compressed, then the plastic blocks are placed in the grooves 17 in parallel, the push plate 18 is released, the push plate 18 pushes the plastic blocks to slide between the two side plates 13, and meanwhile a plurality of inserting plates 16 enter the grooves, so that the plastic blocks are quickly filled and positioned, and the processing efficiency is improved.
One exemplary use process by which a clamped plastic block may be obtained according to the structure and content shown in fig. 2-12 is:
the preparation device also comprises a material slope 19 fixed on the bottom plate 14, and a clamping plate 20 connected on the material slope 19 through a lifting rod and sliding in the through hole 15; the lifting rod drives the clamping plate 20 to lift in the through hole 15 in a normal state, when the push plate 18 pushes the plastic block between the two side plates 13, the clamping plate 20 blocks the plastic block, and at the moment, under the combined action of the clamping plate 20 and the push plate 18, the plastic block is exactly aligned with the two side plates 13, so that the position of the plastic block is ensured, the plastic block is clamped, the automation is realized, and the processing efficiency is improved; after the processing is finished, the lifting and contracting rod drives the clamping plate 20 to descend, when the push plate 18 is pulled out, another plastic block is put in, the push plate 18 can push the other plastic block to move while the push plate 18 is released, the processed plastic block is pushed out backwards from between the two side plates 13 through the newly added plastic block, the pushed plastic block freely slides and falls under the action of the material slope 19, and then the clamping plate 20 is lifted up to block the newly added plastic block just entering between the two side plates 13.
One exemplary use procedure by which automatic cutting may be obtained from the structures and content shown in fig. 2-12 is:
the preparation device further comprises two air cylinders 12 fixed on the two side plates 13, and the flat plate 01 is fixed on the air cylinder rods of the two air cylinders 12; the flat plate 01 can be driven to descend through the two cylinders 12, so that the flat plate 01 does not need to be manually pressed down, automatic cutting is realized, and manpower and material resources are saved.
One exemplary use process that may be obtained to clean the outer wall of the cutter tube 02 according to the structure and content shown in fig. 2-12 is:
the preparation device further comprises a hanging bracket 09 fixed on the two side plates 13 and two push rods 08 fixed on the hanging bracket 09, wherein each push rod 08 is fixedly connected with an arc plate 07, and a sponge 06 is arranged on each arc plate 07; after the cutter tube 02 is cut, before ascending, the two push rods 08 drive the two arc plates 07 to be buckled, so that the two sponges 06 are contacted and enclosed on the outer wall of the cutter tube 02, and then sticky waste and residues are cleaned when the cutter tube 02 is cut along with the ascending of the cutter tube 02.
One exemplary use procedure that may be made to improve cutting efficiency according to the structure and content shown in fig. 2-12 is:
a circular ring 10 is fixed on the hanging bracket 09, and a heating wire 11 with a self-contained power supply is arranged on the inner wall of the circular ring 10; when the cutter tube 02 falls, the heating wire 11 can be heated, and then the cutter tube 02 passing through the heating wire 11 is baked, so that the temperature of the cutter tube 02 is increased, the cutter tube 02 is facilitated to cut a plastic block, and the cutting efficiency is accelerated.
One exemplary use procedure by which the cooling of the tube 02 may be achieved according to the structure and content shown in fig. 5-9 is:
be provided with two water tanks 04 on the dull and stereotyped 01, all be provided with a contact block 05 that has the sponge cover on every water tank 04, the position that the water in the water tank 04 can be passed to contact block 05 through the sponge cover, when the sword pipe 02 descends, contact block 05 can contact on corresponding sponge 06 to in the middle of conveying water sponge 06, can utilize moisture to cool down sword pipe 02 when sponge 06 clearance sword pipe 02 outer wall, avoid sword pipe 02 outer wall scald sponge 06 simultaneously.
Claims (10)
1. A process for preparing a degradable plastic material, which is characterized by comprising the following steps:
step one: manufacturing a plastic block from a degradable plastic material raw material through extrusion equipment;
step two: cutting stripe grooves on the rubber block in a crossed manner;
step three: positioning and clamping the plastic block, and processing a circular hole with teeth by using a preparation device to obtain a plastic material;
step four: sorting and packaging the processed plastic materials.
2. The process for preparing a degradable plastic material according to claim 1, wherein: the preparation device comprises a flat plate (01), a cutter tube (02) and a pressing plate (03), wherein the cutter tube (02) is fixed on the flat plate (01) and is used for machining a round hole with teeth, the pressing plate (03) is sliding on the flat plate (01), and a tension spring is connected between the pressing plate (03) and the flat plate (01).
3. The process for preparing a degradable plastic material according to claim 2, characterized in that: the preparation device further comprises two side plates (13) fixed on the bottom plate (14), and a plurality of inserting plates (16) arranged on each side plate (13), the inserting plates (16) on the two side plates (13) are mutually staggered, through holes (15) are formed in the bottom plate (14), and one end of each inserting plate (16) is arc-shaped.
4. A process for the preparation of a degradable plastics material according to claim 3, characterized in that: the preparation device further comprises a trough (17) fixed on the bottom plate (14) and a push plate (18) sliding in the trough (17), and a spring is connected between the trough (17) and the push plate (18).
5. The process for preparing a degradable plastic material according to claim 4, wherein: the preparation device further comprises a stock slope (19) fixed on the bottom plate (14), and a clamping plate (20) connected to the stock slope (19) through a lifting rod and sliding in the through hole (15).
6. The process for preparing a degradable plastic material according to claim 5, wherein: the preparation device further comprises two air cylinders (12) fixed on the two side plates (13), and the flat plate (01) is fixed on the air cylinder rods of the two air cylinders (12).
7. The process for preparing a degradable plastic material according to claim 6, wherein: the preparation device further comprises a hanging bracket (09) fixed on the two side plates (13), and two push rods (08) fixed on the hanging bracket (09), each push rod (08) is fixedly connected with an arc plate (07), and a sponge (06) is arranged on each arc plate (07).
8. The process for preparing a degradable plastic material according to claim 7, wherein: the hanging bracket (09) is fixedly provided with a circular ring (10), and the inner wall of the circular ring (10) is provided with a heating wire (11) with a self-contained power supply.
9. The process for preparing a degradable plastic material according to claim 8, wherein: two water tanks (04) are arranged on the flat plate (01), and a contact block (05) with a sponge sleeve is arranged on each water tank (04).
10. The degradable plastic material prepared by the preparation process of the degradable plastic material according to claim 1, wherein the degradable plastic material is characterized in that: the novel plastic belt comprises a plastic block and a plurality of stripe grooves which are arranged on the plastic block in a staggered manner, wherein round holes are formed in the plastic block, and a plurality of teeth are circumferentially arranged in the round holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210400269.3A CN116766548A (en) | 2022-04-16 | 2022-04-16 | Degradable plastic material and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210400269.3A CN116766548A (en) | 2022-04-16 | 2022-04-16 | Degradable plastic material and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116766548A true CN116766548A (en) | 2023-09-19 |
Family
ID=88006912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210400269.3A Pending CN116766548A (en) | 2022-04-16 | 2022-04-16 | Degradable plastic material and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116766548A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW387838B (en) * | 1997-06-17 | 2000-04-21 | Norton Co | Non-metallic body cutting tools |
| JP2011236581A (en) * | 2010-05-07 | 2011-11-24 | Sunouchi Corp | Manufacturing apparatus and method of cylindrical body with stopper |
| CN104385514A (en) * | 2014-10-13 | 2015-03-04 | 扬州永鑫绝缘除尘设备厂 | Making method of molded product |
| CN210389457U (en) * | 2019-06-15 | 2020-04-24 | 永昌县泷悦农产品包装有限公司 | Perforating device is used in cystosepiment processing |
| CN111496926A (en) * | 2020-05-07 | 2020-08-07 | 付子豪 | Secondary forming processing machine for polyurethane plastic foam packaging material |
| CN215315880U (en) * | 2021-06-01 | 2021-12-28 | 南阳市盛昌液压机械制造有限公司 | Deep hole boring rolling head device for hydraulic cylinder of oil drilling and production equipment |
| CN216226594U (en) * | 2021-11-18 | 2022-04-08 | 湖北畅旭工业自动化设备有限公司 | Stamping part one-time forming equipment capable of automatically feeding and discharging |
-
2022
- 2022-04-16 CN CN202210400269.3A patent/CN116766548A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW387838B (en) * | 1997-06-17 | 2000-04-21 | Norton Co | Non-metallic body cutting tools |
| JP2011236581A (en) * | 2010-05-07 | 2011-11-24 | Sunouchi Corp | Manufacturing apparatus and method of cylindrical body with stopper |
| CN104385514A (en) * | 2014-10-13 | 2015-03-04 | 扬州永鑫绝缘除尘设备厂 | Making method of molded product |
| CN210389457U (en) * | 2019-06-15 | 2020-04-24 | 永昌县泷悦农产品包装有限公司 | Perforating device is used in cystosepiment processing |
| CN111496926A (en) * | 2020-05-07 | 2020-08-07 | 付子豪 | Secondary forming processing machine for polyurethane plastic foam packaging material |
| CN215315880U (en) * | 2021-06-01 | 2021-12-28 | 南阳市盛昌液压机械制造有限公司 | Deep hole boring rolling head device for hydraulic cylinder of oil drilling and production equipment |
| CN216226594U (en) * | 2021-11-18 | 2022-04-08 | 湖北畅旭工业自动化设备有限公司 | Stamping part one-time forming equipment capable of automatically feeding and discharging |
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