CN109877217A - A kind of shingle nail machine-shaping device - Google Patents
A kind of shingle nail machine-shaping device Download PDFInfo
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- CN109877217A CN109877217A CN201811544099.6A CN201811544099A CN109877217A CN 109877217 A CN109877217 A CN 109877217A CN 201811544099 A CN201811544099 A CN 201811544099A CN 109877217 A CN109877217 A CN 109877217A
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Abstract
The invention discloses a kind of shingle nail machine-shaping devices, it includes the uncoiler set gradually from after going to, smooth conveyer, cutting and forming machine and cutting molding machine, uncoiler unfolds coiled steel band on plate into strips and smoothing conveyer equipped with can be by the straightener roll of panel leveling, the cutting and forming machine includes punching rack, the two sides of punching rack, which are connected separately with, can cut two sides of plate and form the punching mechanism of notch section in plate side, the extrusion body that two sides of plate can be formed to bending part is also equipped in the punching rack, the cutting molding machine includes cutting rack, the both sides of cutting are bent to form to after cutting the cutting shaping mechanism of bending part upward or downward equipped with energy blanked sheet material notch section in cutting rack and among notch section.The metal lagging of four side of energy continuous production setting bending part or/and bending part of the present invention, has the advantages that quality of production height and the high effect of labor efficiency.
Description
Technical field
The present invention relates to a kind of shingle nail machine-shaping devices.
Background technique
The outer surface of present vacuum thermal insulation decorative panel mounts the structures such as marble slab, sheet metal, can be improved
Vacuum thermal insulation decorative panel firmly installs intensity, and improves its performance attractive in appearance.It is exhausted that the applicant provides a kind of vacuum
Hot heat insulating decorative board, to disclose its structure in 2018209280656 patent application, metal lagging uses number of patent application
Following technique is made, and the sheet metal after cutting is carried out compacting or punching press using mechanical equipment, has the edge of sheet metal
There is bending part, two wherein at least opposite bending parts have outwardly extending wing plate, two opposite bending parts with wing plate
Width dimensions have the width of scale cun poor, the both wings board width that the outer surface of wing plate and aluminium sheet is arranged in parallel and is oppositely arranged
Identical, the punching bolt mounting hole on wing plate obtains metal lagging, and the technique of this punching press or compacting can only carry out monolithic
The production of plate, labor efficiency is low, and quality is difficult to ensure.
Summary of the invention
The invention solves first technical problem be to provide a kind of shingle nail machine-shaping device, using above-mentioned metope
Sheet fabrication molding equipment, can be with continuous production wall board, the i.e. above-mentioned metal lagging of continuous production, to improve labour
Efficiency also improves processing quality.
The shingle nail machine-shaping device that in order to solve the above-mentioned technical problems, the present invention provides a kind of such as flowering structure,
Design feature is to include the uncoiler set gradually from after going to, smoothing conveyer, cutting and forming machine and cutting molding machine, opens
Volume machine unfolds coiled steel band on plate into strips and smoothing conveyer equipped with can be by the straightener roll of panel leveling, the sanction
Cutting molding machine includes punching rack, and the two sides for being punched rack, which are connected separately with, can cut two sides of plate and in plate side shape
At the punching mechanism of notch section, the extrusion forming that two sides of plate can be formed to bending part is also equipped in the punching rack
Mechanism, the cutting molding machine include cutting rack, are cut off in rack equipped with energy blanked sheet material notch section and among notch section
The both sides of cutting are bent to form to the cutting shaping mechanism of bending part upward or downward after cutting.
The punching mechanism includes the punching lower die being connected in punching rack, and punching lower die has upper surface and is located at upper
Outer side surface and lower deep gouge recessed down are punched the punching upper mold being connected in rack by cutting oil cylinder driving, are punched upper mold
Bottom surface be the lower surface and lower surface that can be bonded with upper surface outside be equipped with it is downwardly projecting, can with lower deep gouge cooperate cut
Lower convex platform.
The punching mechanism further includes punching frame, and punching frame longitudinal sliding motion is connected in punching rack, the punching lower die
It is all connected on punching frame with punching upper mold, sliding and the speed slid backward before and after driving punching frame is housed in the punching rack
Spend sliding driving mechanism identical with plate conveying speed.
The extrusion body includes the multiple molding roller groups being correspondingly connected in punching rack two sides and linkage, Mei Gecheng
Type roller group includes a molding lower roll and a molding upper roller, and plurality of molding lower roll or multiple molding upper rollers are by power transmission
Mechanism power drive rotation, molding lower roll and the outside portion for forming upper roller be provided with the side of press section and plate by it is multiple at
The extruding of type lower roll and molding upper roller forms the bending part.
A punching rack at least side slidably connects the horizontal sliding frame of energy horizontal sliding, the punching mechanism of side
It is connected on horizontal sliding frame with molding roller group, it is laterally sliding equipped with driving horizontal sliding frame edge to be punched rack in the punching rack
The transversal driving mechanism of shifting.
The cutting shaping mechanism includes being slidably connected at the lower slider and upper saddle in cutting rack and being oppositely arranged, and is cut
It is respectively provided with the drive cylinder that driving lower slider and upper saddle vertically slide along rack on off line frame, lower die is housed on lower slider
Seat, on upper saddle equipped with the upper die holder being correspondingly arranged with lower die holder, it is vertically arranged equipped with spaced two on lower die holder
Flanging lower die, equipped with the cutting upper mold for extending downwardly and being located at two flanging lower die middle upper parts, upper die holder on the upper die holder
On be also equipped with and be located at cutting upper mold two sides and make the cutting end shape of plate with the cooperation of flanging lower die when flanging lower die is moved upwards
At being folded upward at the flanging upper mold to form bending part.
Equipped with support grillage in the cutting rack, supports and vertical guide post, the lower slider and upper are housed on grillage
Slide pass through respectively sliding sleeve be connected in guide post and the lower surface of lower slider and the upper surface of upper saddle be separately connected it is flexible
Column.
The smoothing conveyer includes smoothing rack, and the correspondence for smoothing rack is equipped with charging roller group and discharging roller group,
Feeding roller group includes about two feed rollers being oppositely arranged, and discharging roller group includes two discharge rollers being oppositely arranged up and down, institute
It states smoothing rack and is also equipped with the smoothing roller group for being located at charging roller group between the roller group that discharges, smoothing roller group includes in horizontal S shape
The multiple straightener rolls being arranged.
After adopting the above structure, it is unfolded coiled plate to form plate by uncoiler, using smoothing conveyer
Two sides of plate are punched into multiple spaced notches, form the notch section of plate, then lead to by smoothing, cutting and forming machine
It crosses extrusion body and two sides of plate is squeezed into flanging, form bending part, the width after entire bending part unfolded state
It is of same size with notch section, cut off by cutting molding machine among notch section, cutting while make two sides of cutting to
On be bent to form bending part, that is, after the bending part and previous block of plate in the front that can be formed simultaneously latter block of plate when cutting off
The bending part of side.It can be seen from the above description that metal lagging described in background technique can be continuously produced, no longer
Single punching press is needed, also substantially increases labor efficiency while ensure that the quality of production.
In conclusion the metal lagging of four side of energy continuous production setting bending part of the present invention or/and bending part, has life
Yield and quality height and the high advantage effect of labor efficiency.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing:
Fig. 1 is the cross-sectional view of the line A-A section view along Fig. 2；
Fig. 2 is a kind of structural schematic diagram of metal lagging section view；
Fig. 3 is to realize quantity-produced flow diagram using equipment of the invention；
Fig. 4 is the schematic diagram of an embodiment of the present invention；
Fig. 5 is the schematic diagram of punching mechanism in Fig. 4 embodiment；
Fig. 6 is to be punched upper mold in Fig. 4 embodiment and be punched the structural schematic diagram of lower die cooperation；
Fig. 7 be in Fig. 6 B to structural schematic diagram；
Fig. 8 is the structural schematic diagram that shaping mechanism is cut off in Fig. 4 embodiment；
Fig. 9 is the structural schematic diagram of upper die holder and lower die holder cooperation.
Specific embodiment
Referring to FIG. 1, FIG. 2 and FIG. 3, a kind of metal lagging that the applicant proposes is applied to vacuum thermal insulation and fills
On plaque, thus decoration of exterior wall thermal insulation material as a whole, fixed installation is convenient, secured, and convenient for spraying and coloured silk
It draws.The metal lagging includes plate body 50, and plate body 50 has groove, for accommodating vacuum thermal insulation plate, plate body 50 it is opposite
Bending part 51, another two relative edge are provided on two sides equipped with bending part 52, bending part 51 and bending part 52 surround jointly
Above-mentioned groove, bending part are to have with the integrally formed vertical edge of plate, bending part with the integrally formed vertical edge of plate and from vertical edge
Bolt hole is arranged on wing plate in the outwardly extending wing plate in end, by the bolt that installs on bolt hole by entire vacuum thermal insulation
Decorative panel is fixed on the exterior wall of building.Currently, above-mentioned metal lagging is made of following technique, it will using mechanical equipment
Sheet metal after cutting carries out compacting or punching press, and the edge of sheet metal is made to have bending part and bending part, this to strike out
Type it is difficult to ensure that bending part and bending part width, and need single production, thus labor efficiency is low and Forming Quality is poor.Ginseng
It examines shown in Fig. 3, the applicant provides a kind of quantity-produced technique comprising coiled steel band is unfolded, bar shaped is formed
Plate 60 stamps out spaced multiple notch sections 61 by special equipment in the two sides of plate, uses dedicated extruding
The two sides of plate are squeezed flanging and form above-mentioned bending part by molding equipment (equipment such as milling train), then by special equipment along
The center line X of notch section cut off while to form both sides of cutting portion while being folded upward at by extrusion die described curved
Folding part when cutting, can be formed simultaneously the bending part of the bending part at the rear portion of previous block of plate and the front of latter block of plate, pass through
Above-mentioned technique is crossed, while improving efficiency, can ensure that its Forming Quality with the above-mentioned metal lagging of continuous production.
Refering to what is shown in Fig. 4, the present invention provides a kind of special processing equipments in order to realize above-mentioned technique, i.e., illustrate in figure
A kind of embodiment of shingle nail machine-shaping device is gone out comprising uncoiler 1, the smoothing conveyer set gradually after going to certainly
2, cutting and forming machine 3 and cutting molding machine 4, above-mentioned uncoiler, smoothing conveyer, cutting and forming machine and cutting molding machine 4 can
To be arranged in a common rack, rack can also be separately provided, coiled steel band is unfolded plate into strips by uncoiler 1
Equipped with that can include punching rack 31 by the straightener roll of panel leveling, the cutting and forming machine 3 on material and smoothing conveyer 2, it be punched
The two sides of rack 31, which are connected separately with, can cut two sides of plate and form the punching mechanism of notch section in plate side, described
The extrusion body that two sides of plate can be formed to bending part, the cutting molding machine 4 are also equipped in punching rack 31
Including cutting off rack 41, cuts off and energy blanked sheet material notch section is housed and from after the cutting of notch section centre by the two of cutting in rack 41
Side is bent to form the cutting shaping mechanism of bending part upward or downward, and the dotted line in Fig. 4 is the plate of expansion, by above-mentioned each
Mechanism can form sheet fabrication to form above-mentioned metal lagging.
Above-mentioned each equipment is described in detail with reference to the accompanying drawing.
Refering to what is shown in Fig. 4, the uncoiler 1 includes uncoiling rack and the spool being mounted in uncoiling rack, spool is for pacifying
The band-like profile (including color steel tile band, steel band etc.) of volume is dressed up, spool can be freely rotated, and can also turn using being driven by motor
The automatic uncoiling structure of axis movement, specific structure are the prior art, and in this not go into detail.The smoothing conveyer 2
Including smoothing rack 21, for the correspondence of smoothing rack 21 equipped with charging roller group and discharging roller group, charging roller group includes on two
Under the feed roller 22 that is oppositely arranged, discharging roller group includes two discharge rollers 23 being oppositely arranged up and down, the smoothing rack 21 and also
Equipped with the smoothing roller group for being located at charging roller group between the roller group that discharges, smoothing roller group includes the multiple schools being arranged in horizontal S shape
Plain-barreled roll 24 is slid vertically by bearing block positioned at top straightener roll 24 and is connected in smoothing rack 21, adjustable above-mentioned bearing
The upper and lower position of seat, and then the upper and lower gap between multiple straightener rolls is adjusted, to be smoothed, specifically smooths process and exist
This is no longer described in detail.
With reference to shown in Fig. 4 to Fig. 7, the punching mechanism includes the punching lower die 32 being connected in punching rack 31, punching
Lower die 32 has upper surface and positioned at upper surface outside and lower deep gouge 33 recessed down, is punched in rack 31 and is connected with by cutting
The bottom surface of the punching upper mold 34 of oil cylinder driving, punching upper mold 34 is the lower surface that can be bonded with upper surface and sets on the outside of lower surface
There is lower convex platform 35 that is downwardly projecting, can cutting with the cooperation of lower deep gouge, by punching upper mold and is punched the cooperation of lower die and cuts
The power drive of oil cylinder can be punched into above-mentioned notch section.In embodiment, it effect and is improved efficiency to guarantee to be punched
(cutting without shutdown) can drive the punching lower die in engagement process with punching upper mold with the movement of plate synchronous same-speed, described
Punching mechanism further includes punching frame 38, and punching 38 longitudinal sliding motion of frame is connected in punching rack, in the punching lower die and punching
Mould is all connected on punching frame, i.e., above-mentioned punching lower die and punching upper mold are not directly coupled in punching rack, is passed through
Punching frame is connected in punching rack, and the speed for driving and sliding and slide backward before and after punching frame 38 is housed in the punching rack 31
Sliding driving mechanism identical with plate conveying speed is spent, can make to be punched frame together with plate backward by sliding driving mechanism
Synchronous same-speed sliding, is punched out to form above-mentioned notch section while synchronous same-speed slides backward, is punched frame again after the completion of punching
The return under the power drive of sliding driving mechanism, completes a working cycles, the specific structure of above-mentioned sliding driving mechanism is not
It is shown in figure, the servo motor of energy positive and negative rotation, servo electricity can be equipped in punching rack 38 using such as flowering structure
Lead screw is housed on the power output shaft of machine, the screw being screwed on lead screw is housed on above-mentioned punching frame 38.The single lead screw ex truding briquetting machine
Structure includes the multiple molding roller groups being correspondingly connected in punching 31 two sides of rack and linkage, and each molding roller group includes under a molding
Roller 36 and a molding upper roller 37, plurality of molding lower roll or multiple molding upper rollers are turned by the power drive of power transmission mechanism
Dynamic, the outside portion of molding lower roll and molding upper roller is provided with press section and multiple molding lower rolls 36 and molding are passed through in the side of plate
The extruding of upper roller 37 forms the bending part, forms lower roll and molding upper roller all uses roll structure in the prior art,
Its specific structure is the prior art, and in this not go into detail.When strip width needs to adjust, in the present embodiment, institute
State the horizontal sliding frame 39 that the punching at least side of rack 31 slidably connects energy horizontal sliding, the punching mechanism of side and molding
Roller group is connected to 39 on horizontal sliding frame, is equipped in the punching rack 31 and is driven horizontal sliding frame along punching rack horizontal sliding
Transversal driving mechanism, which is the adjusting screw being connected in punching rack 31, is filled on horizontal sliding frame 39
There is the screw being screwed on adjusting screw, be also equipped with support bar at the middle part of punching rack 31, multiple idler wheels are housed on support bar,
Plate middle part can be prevented sagging, to guarantee Forming Quality.
With reference to shown in Fig. 4, Fig. 8 and Fig. 9, the cutting shaping mechanism is in cutting rack 41 and opposite including being slidably connected at
The lower slider 42 and upper saddle 43 of setting cut off to be respectively provided with that lower slider and upper saddle being driven vertically to slide along rack in rack 41
Drive cylinder 44, on lower slider 42 equipped on lower die holder, upper saddle equipped with the upper die holder being correspondingly arranged with lower die holder, lower die holder
Spaced two vertically arranged flanging lower dies 46 are housed on 44, is equipped on the upper die holder and is extended downwardly and be located at two
The cutting upper mold 47 of flanging lower die middle upper part is also equipped on upper die holder and is located at cutting 47 two sides of upper mold and when flanging lower die is upward
Form the cutting end of plate with the cooperation of flanging lower die when movement and be folded upward at the flanging upper mold 48 to form bending part, i.e., above
When drive cylinder acts, cutting upper mold is moved downward, and cutting upper mold is located between two flanging lower dies 46, thus can be to incision
Break above-mentioned plate, and after the completion of cutting, the drive cylinder 44 of lower section is acted, and moves upwards two flanging lower dies 46, due to flanging
Upper mold 47 bears against positioning action, and the notch section after cutting can be folded upward at along flanging upper mold, in flanging lower die and flanging upper mold
Between form above-mentioned bending part.Equipped with support grillage 49 in the cutting rack 41, supports and vertical guiding is housed on grillage 49
Column 6, the lower slider 42 and upper saddle 43 are connected in guide post 6 by sliding sleeve respectively and the lower surface of lower slider 42 and upper cunning
The upper surface of seat 43 is connected separately with elastic 7, and the alignment of upper die holder and lower die holder can be effectively ensured in above structure, guarantee to cut
Disconnected and bending forming, improves Forming Quality.
The above is specific constructive form of the invention, and the present invention is not limited to the above embodiments, is led in this technology
For the personnel of domain, equivalent variations and part replacement based on specific structure in the present invention are all within the scope of the present invention.
Claims (8)
1. a kind of shingle nail machine-shaping device, it is characterised in that including set gradually after going to certainly uncoiler (1), smoothing it is defeated
Send machine (2), cutting and forming machine (3) and cutting molding machine (4), uncoiler (1) by coiled steel band unfold plate into strips and
It smooths on conveyer (2) equipped with that can include punching rack (31) by the straightener roll of panel leveling, the cutting and forming machine (3), rushes
The two sides for cutting rack (31), which are connected separately with, can cut two sides of plate and form the punching mechanism of notch section in plate side,
The extrusion body that two sides of plate can be formed to bending part is also equipped on punching rack (31), it is described to cut into
Type machine (4) includes cutting rack (41), is cut off equipped with energy blanked sheet material notch section and among notch section in cutting rack (41)
The both sides of cutting are bent to form to the cutting shaping mechanism of bending part upward or downward afterwards.
2. shingle nail machine-shaping device as described in claim 1, it is characterised in that: the punching mechanism includes being connected to punching
Cut the punching lower die (32) on rack (31), punching lower die (32) has upper surface and on the outside of upper surface and recessed down
Lower deep gouge (33) is punched the punching upper mold (34) being connected on rack (31) by cutting oil cylinder driving, is punched the bottom of upper mold (34)
Face be the lower surface and lower surface that can be bonded with upper surface outside be equipped with it is downwardly projecting, can with lower deep gouge cooperate cut down it is convex
Platform (35).
3. shingle nail machine-shaping device as claimed in claim 2, it is characterised in that: the punching mechanism further includes punching frame
(38), punching frame (38) longitudinal sliding motion is connected in punching rack, and the punching lower die and punching upper mold are all connected to punching frame
On, equipped with the speed and plate conveying speed for driving the sliding of punching frame (38) front and back and sliding backward on punching rack (31)
Identical sliding driving mechanism.
4. shingle nail machine-shaping device as described in claim 1, it is characterised in that: the extrusion body includes corresponding to
Be connected to multiple molding roller groups of punching rack (31) two sides and linkage, each molding roller group including a molding lower roll (36) and
One molding upper roller (37), plurality of molding lower roll or multiple molding upper rollers are rotated by the power drive of power transmission mechanism, at
The outside portion of type lower roll and molding upper roller is provided with press section and the side of plate is passed through on multiple molding lower rolls (36) and molding
The extruding of roller (37) forms the bending part.
5. shingle nail machine-shaping device as claimed in claim 4, it is characterised in that: the punching rack (31) at least side
Portion slidably connects the horizontal sliding frame (39) of energy horizontal sliding, and the punching mechanism and molding roller group of side are connected to horizontal sliding
On frame (39), equipped with the laterally driven machine for driving horizontal sliding frame edge punching rack horizontal sliding on punching rack (31)
Structure.
6. such as shingle nail machine-shaping device of any of claims 1-4, it is characterised in that: the cutting molding machine
Structure includes being slidably connected at the lower slider (42) and upper saddle (43) in cutting rack (41) and being oppositely arranged, and is cut off rack (41)
On be respectively provided with driving lower slider and the drive cylinder (44) that vertically slides along rack of upper saddle, lower die is housed on lower slider (42)
Seat, on upper saddle equipped with the upper die holder being correspondingly arranged with lower die holder, it is vertically arranged equipped with spaced two on lower die holder
Flanging lower die (46), equipped with the cutting upper mold for extending downwardly and being located at two flanging lower die middle upper parts on the upper die holder
(47), it is also equipped on upper die holder and is located at cutting upper mold (47) two sides and makes when flanging lower die is moved upwards with the cooperation of flanging lower die
The cutting end of plate forms and is folded upward at the flanging upper mold (48) to form bending part.
7. shingle nail machine-shaping device as claimed in claim 6, it is characterised in that: equipped with branch on the cutting rack (41)
Fagging frame (49) supports and vertical guide post (6) is housed on grillage (49), and the lower slider (42) and upper saddle (43) lead to respectively
Cross sliding sleeve be connected on guide post (6) and the lower surface of lower slider (42) and the upper surface of upper saddle (43) be separately connected it is flexible
Column (7).
8. shingle nail machine-shaping device as claimed in any one of claims 1-3, it is characterised in that: the smoothing conveyer
It (2) include smoothing rack (21), equipped with charging roller group and discharging roller group, charging roller group includes the correspondence of smoothing rack (21)
About two feed rollers (22) being oppositely arranged, discharging roller group includes two discharge rollers (23) being oppositely arranged up and down, the school
Flat rack (21) is also equipped with the smoothing roller group for being located at charging roller group between the roller group that discharges, and smoothing roller group includes in horizontal S shape
The multiple straightener rolls (24) being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544099.6A CN109877217A (en) | 2018-12-17 | 2018-12-17 | A kind of shingle nail machine-shaping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544099.6A CN109877217A (en) | 2018-12-17 | 2018-12-17 | A kind of shingle nail machine-shaping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109877217A true CN109877217A (en) | 2019-06-14 |
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ID=66925118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811544099.6A Pending CN109877217A (en) | 2018-12-17 | 2018-12-17 | A kind of shingle nail machine-shaping device |
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| Country | Link |
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| CN (1) | CN109877217A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640036A (en) * | 2019-09-23 | 2020-01-03 | 武汉宏升鑫汽车部件有限公司 | Metal part stamping system |
| CN110711826A (en) * | 2019-12-03 | 2020-01-21 | 山东星冠环保科技有限公司 | Automatic forming machine for garbage can body |
| CN110744620A (en) * | 2019-10-28 | 2020-02-04 | 郑文豪 | Plastic steel tile manufacturing and processing machine and method |
| CN114918631A (en) * | 2022-06-22 | 2022-08-19 | 云南通变电器配件有限公司 | Continuous forming system and forming method for section bar for energy-saving power distribution cabinet |
-
2018
- 2018-12-17 CN CN201811544099.6A patent/CN109877217A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640036A (en) * | 2019-09-23 | 2020-01-03 | 武汉宏升鑫汽车部件有限公司 | Metal part stamping system |
| CN110744620A (en) * | 2019-10-28 | 2020-02-04 | 郑文豪 | Plastic steel tile manufacturing and processing machine and method |
| CN110744620B (en) * | 2019-10-28 | 2021-04-16 | 荣泰建设集团有限公司 | Plastic steel tile manufacturing and processing machine and method |
| CN110711826A (en) * | 2019-12-03 | 2020-01-21 | 山东星冠环保科技有限公司 | Automatic forming machine for garbage can body |
| CN110711826B (en) * | 2019-12-03 | 2024-05-03 | 山东星冠环保科技有限公司 | Automatic forming machine for garbage can body |
| CN114918631A (en) * | 2022-06-22 | 2022-08-19 | 云南通变电器配件有限公司 | Continuous forming system and forming method for section bar for energy-saving power distribution cabinet |
| CN114918631B (en) * | 2022-06-22 | 2024-03-26 | 云南通变电器配件有限公司 | Continuous forming system and forming method for section bar for energy-saving power distribution cabinet |
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