CN113218722A - Corrugated paper quality testing sample cutting machine - Google Patents
Corrugated paper quality testing sample cutting machine Download PDFInfo
- Publication number
- CN113218722A CN113218722A CN202010068461.8A CN202010068461A CN113218722A CN 113218722 A CN113218722 A CN 113218722A CN 202010068461 A CN202010068461 A CN 202010068461A CN 113218722 A CN113218722 A CN 113218722A
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- cutting
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- fixedly connected
- corrugated paper
- bolt
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- 238000005520 cutting process Methods 0.000 title claims abstract description 115
- 238000012372 quality testing Methods 0.000 title claims description 4
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims 5
- 238000001514 detection method Methods 0.000 abstract description 10
- 239000000123 paper Substances 0.000 description 16
- 239000011087 paperboard Substances 0.000 description 14
- 239000011111 cardboard Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- 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
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
- B26D1/15—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member
- B26D1/151—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member for thin material, e.g. for sheets, strips or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a corrugated paper quality detection sample cutting machine which comprises a paper cutting mechanism arranged on a support, wherein the paper cutting mechanism comprises a cutting motor fixedly connected with the support, at least one cutting knife is fixedly arranged on an output shaft of the cutting motor, a sliding rod is fixedly arranged at one end of the support, which is close to the cutting motor, and the axial direction of the sliding rod is vertical to the axial direction of the output shaft of the cutting motor; a driving motor is fixedly installed at one end of the support far away from the cutting motor; the output end of the table driving motor is connected with the screw pair through a coupler; the axis of the screw rod pair is parallel to the axis of the slide rod, and a nut of the screw rod pair is fixedly connected with the first end of the slide block; the second end of the sliding block is sleeved on the sliding rod; the body of the sliding block is fixedly connected with the pressing mechanism. The invention has high automation degree, high cutting speed, safety and reliability.
Description
Technical Field
The invention relates to the field of cutting machines, in particular to a corrugated paper quality detection sample cutting machine.
Background
The corrugated paper board is made up by using face paper, liner paper, core paper and corrugated paper which are made into corrugated form through the processes of adhesion. According to the requirement of commodity package, the corrugated board can be processed into single-sided corrugated boards, three-layer corrugated boards, five-layer corrugated boards, seven-layer corrugated boards, eleven-layer corrugated boards and the like. Corrugated cartons are made of corrugated boards, are the most widely used paper container packages, and are widely used for transport packaging. GB6546-1998 method for the edge crush strength of corrugated cardboard clearly requires that the corrugated cardboard sample be a rectangular sample of specified dimensions, without marking, printing marks and damage. The original state of the sample is ensured, the physical properties of the sample are not damaged, the sample manufacturing requirement is improved, and the detection sample elements are met.
The preparation to the corrugated paper sample is wasted time and energy to the mode that adopts artifical cutting preparation now, though a china utility model patent of a system appearance device named corrugated container board detection sample discloses a corrugated paper cutting machine, but this kind of equipment degree of automation is low, needs the workman to press the cardboard with the hand in the cutting process, and easy atress inequality destroys the cardboard, and the workman is also injured easily.
Disclosure of Invention
The invention provides a corrugated paper quality detection sample cutting machine for making up the defects of the prior art.
The invention is realized by the following technical scheme:
a corrugated paper quality detection sample cutting machine comprises a support, wherein the support is fixedly connected with a cutting motor, a cutting knife is fixedly installed on an output shaft of the cutting motor, a sliding rod is fixedly installed at one end, close to the cutting motor, of the support, and the axial direction of the sliding rod is perpendicular to the axial direction of the output shaft of the cutting motor; a driving motor is fixedly installed at one end of the support far away from the cutting motor; the output end of the table driving motor is fixedly connected with the screw pair through a coupler; the axis of the screw rod pair is parallel to the axis of the slide rod, and a nut of the screw rod pair is fixedly connected with the first end of the slide block; the second end of the sliding block is sleeved on the sliding rod; the body of the sliding block is fixedly connected with the pressing mechanism.
The pressing mechanism comprises a bearing plate, one end of the bearing plate is fixedly connected with the sliding block, and a supporting cylinder is fixedly arranged at one end of the bearing plate connected with the sliding block; the top of the supporting cylinder is fixedly connected with the fixing plate through a first bolt; and the second bolt penetrates through the fixed plate and is fixedly connected with the pressing block, and the second bolt is in clearance fit with the fixed plate.
A first cutting knife, a second cutting knife and a third cutting knife are sequentially and fixedly installed on an output shaft of the cutting motor, and the pressing mechanism is positioned between the first cutting knife and the third cutting knife; and the bearing plate and the pressing block are provided with cutter grooves matched with the second cutting blades.
The pressing block is an electromagnet; and a spring is arranged between the bolt head of the second bolt and the fixed plate.
The cutting machine is characterized by further comprising a control and speed regulation switch, the controller is electrically connected with the cutting motor, the driving motor and the electromagnet respectively, and the speed regulation switch is electrically connected with the controller and the driving motor respectively.
The device also comprises a shell fixedly arranged on the bracket.
The invention has the following beneficial effects:
1. simple structure, degree of automation are high, and the cardboard is fixed to the electro-magnet, and the atress is even, can not destroy corrugated container board's structure when the cutting.
2. Different paperboards are cut to obtain detection samples with the same size, and subsequent detection analysis is facilitated.
3. High cutting speed, high safety and high quality.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is an overall schematic of the present invention.
Fig. 2 is a right side view of the present invention.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a schematic diagram of the internal structure of the present invention.
Fig. 5 is a schematic view of the pressing mechanism of the present invention.
FIG. 6 is a schematic view showing the direction of placement of the paperboard of the present invention.
In the figure, 1-shell, 2-bracket, 2-1-first supporting plate, 2-2-second supporting plate. The cutting machine comprises a cutting motor, a pressing mechanism, a bearing plate, a connecting cylinder, a fixing plate, a backing plate, a first bolt, a second bolt, a spring, a first electromagnet, a second electromagnet, a driving motor, a screw pair, a sliding block, a first cutting knife, a sliding rod, a second cutting knife, a rotating speed switch and a controller, wherein the cutting motor is 3-cutting motor, the pressing mechanism is 4-1-bearing plate, the connecting cylinder is 4-2-connecting cylinder, the fixing plate is 4-3-fixing plate, the backing plate is 4-4-backing plate, the first bolt is 4-5-first bolt, the second bolt is 4-6-second bolt, the spring is 4-7-4-8-electromagnet, the driving motor is 5-driving motor, the screw pair is 6-sliding block, the first cutting knife is 8-first cutting knife, the sliding rod is 10-second cutting knife, the third cutting knife is 11-12-rotating speed switch, and the controller is 13-controller.
Detailed Description
In the embodiment, words such as "left", "right", "inside", "outside", etc. describing the directional relationship are only for convenience of description of the embodiment, and are not to be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The fixed connection means includes, but is not limited to, welding, screwing, etc. known in the art.
Fig. 1 to 5 show an embodiment of the present invention. This embodiment provides a corrugated paper quality testing sample cutting machine, including support 2 and fixed mounting at the casing 1 on support 2, casing 1 is equipped with rectangle opening 5. The bottom of the bracket 2 is provided with a supporting leg.
A cutting motor 3 is fixedly arranged on the bracket 2, and the tail part of the cutting motor 3 extends out of the shell through a U-shaped hole on the shell 1; fixed mounting has a plurality of cutting knives in proper order on cutting motor 3's the output shaft, specifically is three circular shape cutting knives, including first cutting knife 8, second cutting knife 10 and third cutting knife 11, wherein the distance between first cutting knife 8 and the second cutting knife 10 is the twice of the distance between second cutting knife 10 and the third cutting knife 11, specifically is the distance between first cutting knife 8 and the second cutting knife 10 and is 100mm, and the distance between second cutting knife 10 and the third cutting knife 11 is 50 mm. A sliding rod 9 is fixedly arranged at one end of the bracket 2 close to the cutting motor 3, and the axial direction of the sliding rod 9 is vertical to the axial direction of an output shaft of the cutting motor 3; specifically, both ends of the slide bar 9 are fixedly connected to the first support plate 2-1 and the second support plate 2-2 fixedly connected to the bracket 2, respectively, and the slide bar 9 is supported above the cutting motor 3 by the first support plate 2-1 and the second support plate 2-2.
One end of the bracket 2 far away from the cutting motor 3 is fixedly provided with a driving motor 5, and the output end of the driving motor 5 is connected with one end of the screw pair 6 through a coupler. The other end of the screw pair 6 is fixedly connected with the bracket 2 through a bearing seat. The axial direction of the axis of the lead screw pair 6 is vertical to the axial direction of the output shaft of the cutting motor 3.
The first end of the sliding block 7 is fixedly connected with the nut of the screw pair 6, and the second end is sleeved on the sliding rod 9 and can slide along the sliding rod 9. The body of the sliding block 7 is fixedly connected with the pressing mechanism 4.
The length of the pressing mechanism 4 is less than or equal to the distance between the first cutting blade 8 and the third cutting blade 11, and is located between the first cutting blade 8 and the third cutting blade 11, that is, the first cutting blade 8 and the third cutting blade 11 cut the sample from both ends of the pressing mechanism 4. The pressing mechanism 4 comprises a bearing plate 4-1 with an L-shaped cross section. The vertical part of the bearing plate 4-1 is fixedly connected with a sliding block 7, two supporting cylinders 4-2 are fixedly installed at the top ends of the vertical part, and internal threads are arranged inside the supporting cylinders 4-2. A fixing plate 4-3 which is horizontally arranged is fixedly connected to the supporting cylinder 4-2 through a first bolt 4-5, namely the first bolt 4-5 penetrates through a first unthreaded hole on the fixing plate 4-3 to be in threaded connection with the supporting cylinder 4-2, and the fixing plate 4-3 is fixedly arranged at the top of the supporting cylinder 4-2. A backing plate 4-4 is arranged between the first bolt 4-5 and the fixed plate 4-3. The backing plate 4-4 is rectangular, two ends of the backing plate are respectively sleeved outside the two first bolts 4-5, and the backing plate 4-4 can be replaced by a gasket. One end of the fixing plate 4-3, which is far away from the first bolt 4-5, is connected with a rectangular electromagnet 4-8 through a second bolt 4-6, the electromagnet 4-8 is positioned below the fixing plate 4-3, specifically, one end of the fixing plate 4-3, which is far away from the first bolt 4-5, is provided with two second through holes, the second bolt 4-6 passes through the second unthreaded hole and is fixedly connected with the electromagnet 4-8, the second bolt 4-6 can freely move up and down in the second unthreaded hole, the length of the second bolt 4-6 is longer, a spring 4-7 is arranged between the second bolt 4-6 and the fixing plate 4-3, namely the spring 4-7 is sleeved on the second bolt 4-6 and positioned between the bolt head of the second bolt 4-6 and the fixing plate 4-3, when the electromagnet is not electrified, the elastic force of the spring 4-7 enables the upper bottom surface of the electromagnet 4-8 to be in close contact with the lower bottom surface of the fixed plate 4-3, and a gap is reserved between the electromagnet 4-8 and the bearing plate 4-1. A knife groove matched with the second cutting blade 10 is arranged on the bearing plate 4-1 and the electromagnet 4-8.
The corrugated paper quality detection sample cutting machine further comprises a controller 13 and a speed regulation switch 12, wherein the controller 13 is respectively electrically connected with the cutting motor 3 and the driving motor 5, and the speed regulation switch 12 is respectively electrically connected with the controller 13 and the driving motor 5. The controller 13 can control the opening of the whole device and the positive and negative rotation of the driving motor 5, and the speed regulating switch 12 controls the rotating speed of the driving motor 5. The controller 13 and the speed control switch 12 are fixedly mounted on the bracket 2, but may be mounted on the housing 1.
When the sample cutting device is used, a paperboard sample is preliminarily cut by 2 according to the size of the pressing mechanism 4, cut paper with the size of 160mm is obtained in advance, and then the preliminarily cut paperboard sample is placed in a gap between the electromagnet 4-8 and the bearing plate 4-1 and leans against the vertical part of the bearing plate 4-1. And then, starting a corrugated paper quality detection sample cutting machine, switching on a power supply, electrifying the electromagnets 4-8, enabling the electromagnets 4-8 to fall under the action of magnetic force to compress the paper board sample, and then adjusting the rotating speed of the driving motor 5 through the speed adjusting switch 12. The driving motor 5 drives the hold-down mechanism 4 to be pushed into the shell 1 from the rectangular opening 5 of the shell 1 through the screw pair 6 and the slider 7, and the cutting motor 3 drives the first cutting knife 8, the second cutting knife 10 and the third cutting knife 11 to rotate to complete the cutting of paper. When the slide block reaches the end where the driving motor 5 is located, the controller 13 is triggered, then the controller 13 controls the driving motor 5 to rotate reversely, the pressing mechanism 4 is pushed out of the shell 1, and the power supply is turned off. After the power is cut off, the electromagnet is lifted under the action of the elastic force of the spring 4-7, and the paper board is taken out.
When cutting, firstly putting the paper board in the longitudinal direction shown in figure 6, after the first cutting, putting the paper board in the transverse direction, carrying out the second cutting, namely taking out the paper board after the first cutting, and adjusting the original direction by 90 to ensure that the cut surface is close to the vertical part of the bearing plate 4-1 for the second cutting, thereby finally obtaining the rectangular paper board sample with regular shape and size.
It should be noted that the screw assembly 6 of the present invention can be replaced by a reciprocating screw assembly, and in this case, the controller 13 does not need to control the driving motor 5 to rotate forward and backward. The number of the cutting knives on the output shaft of the cutting motor 3 can be 1, 2, 4 or more, and only the cutting of the paperboard sample can be completed by matching with the pressing mechanism 4. The pressing mechanism 4 in the invention is not limited to the specific structure, for example, the second bolt 4-7 penetrates through the fixing plate 4-3 and then is connected with the pressing block, when in use, the second bolt 4-7 is held to directly lift the pressing block, the pressing block is put down after the paper board is placed, at this time, a spring is not needed, a mode of directly pressing a heavy object on the bearing plate 4-1 can be adopted, and other structures known in the prior art can be adopted as long as the pressing mechanism 4 can press the paper board sample to be matched with the cutting knife to complete cutting.
Claims (6)
1. The utility model provides a corrugated paper quality testing sample cutting machine, includes support (2), its characterized in that: the support (2) is fixedly connected with the cutting motor (3), a cutting knife is fixedly installed on an output shaft of the cutting motor (3), a sliding rod (9) is fixedly installed at one end, close to the cutting motor (3), of the support (2), and the axial direction of the sliding rod (9) is perpendicular to the axial direction of the output shaft of the cutting motor (3); a driving motor (5) is fixedly installed at one end of the support (2) far away from the cutting motor (3); the output end of the table driving motor (5) is fixedly connected with the screw pair (6) through a coupler; the axis of the screw pair (6) is parallel to the axis of the slide rod (9), and a nut of the screw pair (6) is fixedly connected with the first end of the slide block (7); the second end of the sliding block (7) is sleeved on the sliding rod (9); the body of the sliding block (7) is fixedly connected with the pressing mechanism (4).
2. The corrugated paper quality test sample cutting machine according to claim 1, characterized in that: the pressing mechanism (4) comprises a bearing plate (4-1), one end of the bearing plate (4-1) is fixedly connected with the sliding block (7), and a supporting cylinder (4-2) is fixedly installed at one end, connected with the sliding block (7), of the bearing plate (4-1); the top of the supporting cylinder (4-2) is fixedly connected with the fixing plate (4-3) through a first bolt (4-3); and a second bolt (4-6) penetrates through the fixing plate (4-3) to be fixedly connected with the pressing block, and the second bolt (4-6) is in clearance fit with the fixing plate (4-3).
3. The corrugated paper quality test sample cutting machine according to claim 2, characterized in that: a first cutting knife (8), a second cutting knife (10) and a third cutting knife (11) are sequentially and fixedly installed on an output shaft of the cutting motor (3), and the pressing mechanism (4) is located between the first cutting knife (8) and the third cutting knife (11); and the bearing plate (4-1) and the pressing block are provided with cutter grooves matched with the second cutting blades (10).
4. The corrugated paper quality test sample cutting machine according to claim 2 or 3, characterized in that: the pressing block is an electromagnet (4-8); and a spring (4-7) is arranged between the bolt head of the second bolt (4-6) and the fixed plate (4-3).
5. The corrugated paper quality test sample cutting machine according to claim 4, wherein: the cutting machine is characterized by further comprising a controller (13) and a speed regulating switch (12), wherein the controller (13) is electrically connected with the cutting motor (3), the driving motor (5) and the electromagnets (4-8) respectively, and the speed regulating switch (12) is electrically connected with the controller (13) and the driving motor (5) respectively.
6. The corrugated paper quality test sample cutting machine according to claim 5, wherein: also comprises a shell (1) fixedly arranged on the bracket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068461.8A CN113218722A (en) | 2020-01-21 | 2020-01-21 | Corrugated paper quality testing sample cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068461.8A CN113218722A (en) | 2020-01-21 | 2020-01-21 | Corrugated paper quality testing sample cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113218722A true CN113218722A (en) | 2021-08-06 |
Family
ID=77085145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010068461.8A Pending CN113218722A (en) | 2020-01-21 | 2020-01-21 | Corrugated paper quality testing sample cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113218722A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203293323U (en) * | 2013-05-28 | 2013-11-20 | 慈溪市匡堰盈兴竹制品厂 | Bamboo cutting machine capable of pushing stably |
| CN207807844U (en) * | 2017-12-15 | 2018-09-04 | 天津市铁柱纸制品工贸有限公司 | A kind of cutting machine for corrugated paper |
| CN207971660U (en) * | 2018-02-12 | 2018-10-16 | 江阴市福祥铜门有限公司 | Automatic angle cutting machine |
| CN109227656A (en) * | 2018-10-31 | 2019-01-18 | 嘉兴合力蜂窝制品有限公司 | A kind of cardboard cutter device |
| CN209230986U (en) * | 2018-11-27 | 2019-08-09 | 北京宝丰印刷有限公司 | Cut model machine |
| CN209318905U (en) * | 2018-10-26 | 2019-08-30 | 天工爱和特钢有限公司 | A kind of cutter device of mould steel |
-
2020
- 2020-01-21 CN CN202010068461.8A patent/CN113218722A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203293323U (en) * | 2013-05-28 | 2013-11-20 | 慈溪市匡堰盈兴竹制品厂 | Bamboo cutting machine capable of pushing stably |
| CN207807844U (en) * | 2017-12-15 | 2018-09-04 | 天津市铁柱纸制品工贸有限公司 | A kind of cutting machine for corrugated paper |
| CN207971660U (en) * | 2018-02-12 | 2018-10-16 | 江阴市福祥铜门有限公司 | Automatic angle cutting machine |
| CN209318905U (en) * | 2018-10-26 | 2019-08-30 | 天工爱和特钢有限公司 | A kind of cutter device of mould steel |
| CN109227656A (en) * | 2018-10-31 | 2019-01-18 | 嘉兴合力蜂窝制品有限公司 | A kind of cardboard cutter device |
| CN209230986U (en) * | 2018-11-27 | 2019-08-09 | 北京宝丰印刷有限公司 | Cut model machine |
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Application publication date: 20210806 |