CN107671985A - Pleating machine - Google Patents

Pleating machine Download PDF

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Publication number
CN107671985A
CN107671985A CN201711006612.1A CN201711006612A CN107671985A CN 107671985 A CN107671985 A CN 107671985A CN 201711006612 A CN201711006612 A CN 201711006612A CN 107671985 A CN107671985 A CN 107671985A
Authority
CN
China
Prior art keywords
roller
pressure roller
roller group
group
pleating
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
Application number
CN201711006612.1A
Other languages
Chinese (zh)
Inventor
任建生
任悦
马红军
吴宇军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liyang Tengda Machinery Equipment Co Ltd
Original Assignee
Liyang Tengda Machinery Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liyang Tengda Machinery Equipment Co Ltd filed Critical Liyang Tengda Machinery Equipment Co Ltd
Priority to CN201711006612.1A priority Critical patent/CN107671985A/en
Publication of CN107671985A publication Critical patent/CN107671985A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/12Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
    • B28B3/126Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material on material passing directly between the co-operating rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/52Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention discloses a kind of pleating machine, it includes upper transport portion and lower transport portion, upper transport portion includes press-roller device on upper spider and at least two, upper press-roller device includes upper pressure roller group and the upper drive mechanism of the upper pressure roller group action of driving, the upper pressure roller of upper pressure roller group can be rotated to support on upper spider, and the upper pressure roller of all upper pressure roller groups is set gradually from front to back, the lower transport portion pushes roller arrangement including what lower bearing bracket and at least two and upper press-roller device one-to-one corresponding were set, the roller arrangement that pushes includes pushing roller group and drives the lower drive mechanism for pushing roller group action, the lower compression roller for pushing roller group can be rotated to support on lower bearing bracket, and the lower compression roller for pushing roller group is set gradually from front to back, the pleating passage with gap is formed between upper pressure roller and lower compression roller.The present invention can carry out pleating processing to asbestos product, and it is in distributed in three dimensions to make the fiber in asbestos product, improves the intensity of asbestos product.

Description

Pleating machine
Technical field
The present invention relates to a kind of pleating machine.
Background technology
At present, domestic existing asbestos product production technology, be by by cupola melting, centrifuge at a high speed the rotation system of getting rid of and Into rock wool fibers be paved into by pendulum bob machine the multilayer rock wool layer of even density, curing oven is sent into after being pressurizeed by pressuring machine and is carried out Hot setting is simultaneously pressed into asbestos product.The asbestos product of this technique productions, due to not using pleating when rock wool paves Technology, the rock wool fibers in product are made only laterally to be arranged in two-dimensional layer, and rock wool fibers do not have the row in products thickness direction Cloth, thus make the intensity of asbestos product to be particularly vertical tensile strength very low, it is impossible to meet to be used to build and other industrial heat preservations The performance requirement of heat-insulated asbestos product.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming prior art, there is provided a kind of pleating machine, it can be right Asbestos product carries out pleating processing, and it is in distributed in three dimensions to make the fiber in asbestos product, improves the intensity of asbestos product.
In order to solve the above-mentioned technical problem, the technical scheme is that:A kind of pleating machine, it includes:
Upper transport portion, the upper transport portion include press-roller device on upper spider and at least two, the upper pressure roller dress The upper drive mechanism including upper pressure roller group and the upper pressure roller group action of driving is put, the upper pressure roller of upper pressure roller group can be rotated to support on In frame, and the upper pressure roller of all upper pressure roller groups is set gradually from front to back;
Lower transport portion, the lower transport portion include lower bearing bracket and at least two and the one-to-one corresponding setting of upper press-roller device Push roller arrangement, it is described to push that roller arrangement includes pushing roller group and driving pushes the lower drive mechanism of roller group action, under described The lower compression roller of pressure roller group be can be rotated to support on lower bearing bracket, and the lower compression roller for pushing roller group is set successively from front to back Put, form the pleating passage with gap between upper pressure roller and lower compression roller, it is described push roller arrangement push roller group and corresponding The upper pressure roller group composition pressure roller group of upper press-roller device, there is difference between the transmission speed of the pressure roller between adjacent pressure roller group.
Further for the spacing that can adjust the pleating passage between upper pressure roller and lower compression roller, so that it is applied to specifically The rock wool product of specification, pleating machine also include being arranged between upper spider and lower bearing bracket to drive upper spider relative to lower bearing bracket Move in the vertical direction, dress is adjusted so as to adjust the pressure roller spacing of the spacing of the pleating passage between upper pressure roller and lower compression roller Put.
A kind of concrete structure of pressure roller spacing adjusting device is further provided, the pressure roller spacing adjusting device is included extremely A few screw lift and the lift drive mechanism acted so as to drive screw lift that is connected with screw lift, the silk The body of bar lift is connected on lower bearing bracket, and the screw mandrel of the screw lift is connected on upper spider.
Further, the screw lift is provided with four, and each screw lift is separately positioned on the corresponding of upper spider Between corner and the corresponding corner of lower bearing bracket.
A kind of lift drive mechanism of concrete structure is further provided, it is dynamic that the lift drive mechanism includes lifting deceleration Power part, the first power transmission box and the second power transmission box, the lifting retarding power part pass with the first power transmission box Dynamic connection, the first power transmission box and the second power transmission box are connected by drive link, and the second power transmission box passes through phase respectively The lift drive link two screw lifts drive connection corresponding with homonymy answered, the first power transmission box pass through phase respectively Lift drive link two other screw lift drive connection corresponding with homonymy answered.
Further for the folding angle between the upper pressure roller and lower compression roller that can be adjusted between first group of pressure roller group, so that It is applied to the rock wool product of The concrete specification, before there is the upper spider pressure roller group connecting portion, the pressure roller group connecting portion to include Swing connecting portion and portion is fixedly connected with after, the rearward end of the forward swing rotation connection is pivotably connected after the portion that is fixedly connected On leading section, the upper press-roller device positioned at front end is arranged in forward swing rotation connection, after press-roller device is arranged on remaining Be fixedly connected in portion, the forward swing rotation connection and after be fixedly connected between portion and be provided with regulation forward swing rotation connection relative to rear The swing angle in portion is fixedly connected with, so as to adjust the upper pressure roller group of front end and the opening angle pushed between roller group of front end Angle regulator.
Further, the angle regulator includes angular adjustment piston cylinder, the cylinder body hinge of the angular adjustment piston cylinder It is connected on upper spider, the piston rod of the angular adjustment piston cylinder is hinged with the forward swing rotation connection.
Further, the upper drive mechanism and/or lower drive mechanism are motor.
Further, there is upper profiled roller in upper pressure roller, there is lower profiled roller in lower compression roller, and upper profiled roller is along its axial direction Multiple radially outwardly upper press rings are disposed with, the lower profiled roller is disposed with multiple along it along its axial direction The lower pressure ring projected radially outward, the upper press ring of upper profiled roller and the lower pressure ring of corresponding lower profiled roller misplace arrangement vertically.
Further, the upper transport portion has four upper press-roller devices, and the lower transport portion has four and upper pressure What roller arrangement one-to-one corresponding was set pushes roller arrangement.
After employing above-mentioned technical proposal, rock wool fibers are paved into even density by the pleating methods of pleating machine by pendulum machine The multilayer rock wool of distribution is sent into pleating machine, adjusts the folding angle between the upper pressure roller and lower compression roller of first group of pressure roller group of pleating machine The difference of transmission speed between the pressure roller of degree, the pressure roller of first group of pressure roller group and second group of pressure roller group, form shaping folding together;Through First it is folded after rock wool product subsequently enter the 3rd group of pressure roller group, pass through the pressure roller for adjusting the 3rd group of pressure roller group and second group Transmission speed between the pressure roller of pressure roller group is poor, forms second shaping pleat;By the pressure roller and for adjusting the 4th group of pressure roller group Transmission speed between the pressure roller of three groups of pressure roller groups is poor, forms the 3rd shaping pleat, and the rock wool product after pleating is sent into curing oven Carry out hot setting and be pressed into asbestos product.
Brief description of the drawings
Fig. 1 is the structural representation of the pleating machine of the present invention;
Fig. 2 is Fig. 1 right view;
Fig. 3 is Fig. 1 top view.
Embodiment
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing The present invention is described in further detail.
As shown in Figures 1 to 3, a kind of pleating machine, it includes:
Upper transport portion, the upper transport portion include press-roller device on upper spider 11 and at least two, the upper pressure roller Device includes upper pressure roller group and the upper drive mechanism of the upper pressure roller group action of driving, and the upper pressure roller 12 of upper pressure roller group rotatably supports On upper spider 11, and the upper pressure roller 12 of all upper pressure roller groups is set gradually from front to back;
Lower transport portion, the lower transport portion includes lower bearing bracket 21 and at least two and upper press-roller device corresponds What is set pushes roller arrangement, and the roller arrangement that pushes includes pushing roller group and drives the lower drive mechanism for pushing roller group action, institute State and push the lower compression roller 22 of roller group and can be rotated to support on lower bearing bracket 21, and the lower compression roller 22 for pushing roller group is by going to After set gradually, between upper pressure roller 12 and lower compression roller 22 formed with gap pleating passage, it is described to push pushing for roller arrangement Roller group and the upper pressure roller group of corresponding upper press-roller device composition pressure roller group, between the transmission speed of the pressure roller between adjacent pressure roller group With difference;
Pleating machine also includes being arranged between upper spider 11 and lower bearing bracket 21 to drive upper spider 11 relative to lower bearing bracket 21 move in the vertical direction, are adjusted so as to adjust the pressure roller spacing of the spacing of the pleating passage between upper pressure roller 12 and lower compression roller 22 Regulating device.
As shown in Figure 1,3, the pressure roller spacing adjusting device includes at least one screw lift 31 and lifted with screw mandrel Machine 31 is connected so that the lift drive mechanism of the action of drive screw lift 31, the body of the screw lift 31 are connected to down In frame 21, the screw mandrel of the screw lift 31 is connected on upper spider 11;In the present embodiment, the screw lift 31 Be provided with four, each screw lift 31 be separately positioned on upper spider 11 corresponding corner and lower bearing bracket 21 corresponding corner it Between.
As shown in figure 3, the lift drive mechanism includes lifting retarding power part 41, the first power transmission box 42 and the Two power transmission boxes 43, the lifting retarding power part 41 are connected with the first power transmission box 42, the first power transmission Case 42 is connected with the second power transmission box 43 by drive link 44, and the second power transmission box 43 is passed by corresponding lift respectively Two screw lifts 31 corresponding with homonymy of lever 45 are connected, and the first power transmission box 42 respectively by rising accordingly Two other screw lift 31 corresponding with homonymy of drop machine drive link 45 is connected.
As shown in figure 1, the upper spider 11 has pressure roller group connecting portion, the pressure roller group connecting portion includes preceding swing and connected Portion 111 is fixedly connected with portion 112 with after, and the rearward end of the forward swing rotation connection 111 is pivotably connected after the portion that is fixedly connected On 112 leading section, the upper press-roller device positioned at front end is arranged in forward swing rotation connection 111, press-roller device on remaining Be fixedly connected after being arranged in portion 112, the forward swing rotation connection 111 and after be fixedly connected between portion 112 and be provided with regulation before The swing angle that connecting portion 111 is fixedly connected with portion 112 after is swung, so as to adjust the upper pressure roller group of front end and front end The angle regulator for pushing the opening angle between roller group;Specifically, in same pressure roller group, the transmission speed of upper pressure roller 12 The component velocity of the transmission speed of degree component velocity in the longitudinal direction and lower compression roller 22 in the longitudinal direction is equal, and so ability is complete Into the conveying of asbestos product, this is general knowledge, and in the present embodiment, due to the upper pressure roller group run-off the straight of first group of pressure roller group, institute With the component velocity of above pressure roller 12 and lower compression roller 22 in the longitudinal direction, that is, the transmission speed of lower compression roller 22, as first The transmission speed of the pressure roller of group pressure roller group.
As shown in figure 1, the angle regulator includes angular adjustment piston cylinder 5, the cylinder of the angular adjustment piston cylinder 5 Body is hinged on upper spider 11, and the piston rod of the angular adjustment piston cylinder 5 is be hinged with the forward swing rotation connection 111.
In the present embodiment, as shown in figure 1, the upper drive mechanism and lower drive mechanism are motor 6, motor 6 can drive respective pressure roller to rotate by way of Chain conveyer or V belt translation, same upper pressure roller group or push between roller group Pressure roller can pass through Chain conveyer or V belt translation and connect;Motor 6 can be variable-frequency motor, be become according to technological requirement Speed, each motor 6 can be dull, and and can automatically adjusts by the compression ratio of setting.
As shown in Fig. 2 having upper profiled roller 121 in upper pressure roller 12, there is lower profiled roller 221 in lower compression roller 22, and on Profiled roller 121 is disposed with multiple radially outwardly upper press rings 1211, the lower edge of profiled roller 221 along its axial direction Its axial direction is disposed with multiple radially outwardly lower pressure rings 2211, the upper press ring 1211 and phase of upper profiled roller 121 The lower pressure ring 2211 for the lower profiled roller 221 answered misplaces arrangement vertically;In the present embodiment, in upper pressure roller 12 and lower compression roller 22, There are 10 conventional rollers and 74 profiled rollers altogether, but not limited to this.
In the present embodiment, the upper transport portion has four upper press-roller devices, and the lower transport portion has four Roller arrangement is pushed with what upper press-roller device one-to-one corresponding was set.
The operation principle of the present invention is as follows:
The multilayer rock wool feeding that rock wool fibers are paved into even density distribution by the pleating methods of pleating machine by pendulum machine is beaten Pleat machine, adjust folding angle between the upper pressure roller 12 and lower compression roller 22 of first group of pressure roller group of pleating machine, first group of pressure roller group The difference of transmission speed between pressure roller and the pressure roller of second group of pressure roller group, form shaping folding together;Rock after first folded Cotton product subsequently enters the 3rd group of pressure roller group, by between the pressure roller of the 3rd group of pressure roller group of adjustment and the pressure roller of second group of pressure roller group Transmission speed it is poor, formed second shaping pleat;Pass through the pressure roller of the 4th group of pressure roller group of adjustment and the pressure roller of the 3rd group of pressure roller group Between transmission speed it is poor, form the 3rd shaping pleat, rock wool product after pleating, which is sent into curing oven and carries out hot setting, simultaneously presses Asbestos product is made.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carry out It is further described, should be understood that the specific embodiment that the foregoing is only the present invention, is not limited to this Invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., should be included in this hair Within bright protection domain.

Claims (10)

1. a kind of pleating machine, it is characterised in that it includes:
Upper transport portion, the upper transport portion include press-roller device on upper spider (11) and at least two, the upper pressure roller dress The upper drive mechanism including upper pressure roller group and the upper pressure roller group action of driving is put, the upper pressure roller (12) of upper pressure roller group rotatably supports On upper spider (11), and the upper pressure roller (12) of all upper pressure roller groups is set gradually from front to back;
Lower transport portion, the lower transport portion are corresponded including lower bearing bracket (21) and at least two and upper press-roller device and set That puts pushes roller arrangement, and the roller arrangement that pushes includes pushing roller group and drives the lower drive mechanism for pushing roller group action, described The lower compression roller (22) for pushing roller group can be rotated to support on lower bearing bracket (21), and the lower compression roller (22) for pushing roller group by Set gradually after going to, the pleating passage with gap, the lower compression roller dress are formed between upper pressure roller (12) and lower compression roller (22) The upper pressure roller group for the pushing roller group and corresponding upper press-roller device composition pressure roller group put, the transmission of the pressure roller between adjacent pressure roller group There is difference between speed.
2. pleating machine according to claim 1, it is characterised in that:Also include being arranged on upper spider (11) and lower bearing bracket (21) Between to drive upper spider (11) to be moved in the vertical direction relative to lower bearing bracket (21), so as to adjust upper pressure roller (12) and under The pressure roller spacing adjusting device of the spacing of pleating passage between pressure roller (22).
3. pleating machine according to claim 2, it is characterised in that:The pressure roller spacing adjusting device includes at least one silk Bar lift (31) and the lift drive mechanism acted so as to drive screw lift (31) that is connected with screw lift (31), institute The body for stating screw lift (31) is connected on lower bearing bracket (21), and the screw mandrel of the screw lift (31) is connected to upper spider (11) on.
4. pleating machine according to claim 3, it is characterised in that:The screw lift (31) is provided with four, each Screw lift (31) is separately positioned between the corresponding corner of upper spider (11) and the corresponding corner of lower bearing bracket (21).
5. pleating machine according to claim 4, it is characterised in that:The lift drive mechanism includes lifting retarding power portion Divide (41), the first power transmission box (42) and the second power transmission box (43), lifting retarding power part (41) and first Power transmission box (42) is connected, and the first power transmission box (42) and the second power transmission box (43) pass through drive link (44) phase Even, the second power transmission box (43) is lifted by corresponding lift drive link (45) two screw mandrels corresponding with homonymy respectively Machine (31) is connected, and the first power transmission box (42) is corresponding with homonymy by corresponding lift drive link (45) respectively Two other screw lift (31) is connected.
6. pleating machine according to claim 1, it is characterised in that:The upper spider (11) has pressure roller group connecting portion, institute State pressure roller group connecting portion and portion (112), the forward swing rotation connection (111) are fixedly connected with after including forward swing rotation connection (111) Rearward end be pivotably connected on the leading section of the portion that is fixedly connected after (112), positioned at front end upper press-roller device install In forward swing rotation connection (111), press-roller device is fixedly connected after being arranged in portion (112) on remaining, the preceding company of swing Socket part (111) and after be fixedly connected between portion (112) and be provided with regulation forward swing rotation connection (111) portion is fixedly connected with after (112) swing angle, so as to adjust the angle for pushing the opening angle between roller group of the upper pressure roller group of front end and front end Spend adjusting means.
7. pleating machine according to claim 6, it is characterised in that:The angle regulator includes angular adjustment piston cylinder (5), the cylinder body of the angular adjustment piston cylinder (5) is hinged on upper spider (11), the piston of the angular adjustment piston cylinder (5) Bar is be hinged with the forward swing rotation connection (111).
8. pleating machine according to claim 1, it is characterised in that:The upper drive mechanism and/or lower drive mechanism are drive Dynamic motor (6).
9. pleating machine according to claim 1, it is characterised in that:There is upper profiled roller (121) in upper pressure roller (12), push There is lower profiled roller (221) in roller (22), and upper profiled roller (121) be disposed with along its axial direction it is multiple radially outside The upper press ring (1211) of protrusion, the lower profiled roller (221) are disposed with multiple radially outwardly along its axial direction Lower pressure ring (2211), lower pressure ring (2211) edge of the upper press ring (1211) of upper profiled roller (121) and corresponding lower profiled roller (221) Axile displacement is arranged.
10. pleating machine according to claim 1, it is characterised in that:The upper transport portion has four upper press-roller devices, There are the lower transport portion four to push roller arrangement with what upper press-roller device one-to-one corresponding was set.
CN201711006612.1A 2017-10-25 2017-10-25 Pleating machine Pending CN107671985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711006612.1A CN107671985A (en) 2017-10-25 2017-10-25 Pleating machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711006612.1A CN107671985A (en) 2017-10-25 2017-10-25 Pleating machine

Publications (1)

Publication Number Publication Date
CN107671985A true CN107671985A (en) 2018-02-09

Family

ID=61142188

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711006612.1A Pending CN107671985A (en) 2017-10-25 2017-10-25 Pleating machine

Country Status (1)

Country Link
CN (1) CN107671985A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109989259A (en) * 2019-05-14 2019-07-09 安徽轩鸣新材料有限公司 Vertical hair rock wool production line
CN112192875A (en) * 2020-09-08 2021-01-08 安徽轩鸣新材料有限公司 Rock wool production line

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1847514A (en) * 2005-04-04 2006-10-18 北新集团建材股份有限公司 Pleating machine and its ruffling method
AT9339U1 (en) * 2006-07-06 2007-08-15 Plansee Se METHOD FOR PRODUCING AN EXTRUDED FORM BODY
CN102001126A (en) * 2010-10-20 2011-04-06 南昌大学 Rock wool pleating machine and pleating method thereof
CN202399371U (en) * 2011-12-20 2012-08-29 三门峡市易兴人造板设备有限公司 Multi-power super prepress
CN104496276A (en) * 2014-12-15 2015-04-08 广德施可达岩棉制造有限公司 Method for preparing agricultural rock wool
CN104496277A (en) * 2014-12-15 2015-04-08 广德施可达岩棉制造有限公司 Novel rock wool material
CN207432433U (en) * 2017-10-25 2018-06-01 溧阳市腾达机械设备有限公司 Pleating machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1847514A (en) * 2005-04-04 2006-10-18 北新集团建材股份有限公司 Pleating machine and its ruffling method
AT9339U1 (en) * 2006-07-06 2007-08-15 Plansee Se METHOD FOR PRODUCING AN EXTRUDED FORM BODY
CN102001126A (en) * 2010-10-20 2011-04-06 南昌大学 Rock wool pleating machine and pleating method thereof
CN202399371U (en) * 2011-12-20 2012-08-29 三门峡市易兴人造板设备有限公司 Multi-power super prepress
CN104496276A (en) * 2014-12-15 2015-04-08 广德施可达岩棉制造有限公司 Method for preparing agricultural rock wool
CN104496277A (en) * 2014-12-15 2015-04-08 广德施可达岩棉制造有限公司 Novel rock wool material
CN207432433U (en) * 2017-10-25 2018-06-01 溧阳市腾达机械设备有限公司 Pleating machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109989259A (en) * 2019-05-14 2019-07-09 安徽轩鸣新材料有限公司 Vertical hair rock wool production line
CN109989259B (en) * 2019-05-14 2024-08-30 安徽轩鸣新材料有限公司 Vertical silk rock wool production line
CN112192875A (en) * 2020-09-08 2021-01-08 安徽轩鸣新材料有限公司 Rock wool production line

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Application publication date: 20180209

RJ01 Rejection of invention patent application after publication