CN208514545U - A kind of production line of PP hollow plate - Google Patents
A kind of production line of PP hollow plate Download PDFInfo
- Publication number
- CN208514545U CN208514545U CN201821124321.2U CN201821124321U CN208514545U CN 208514545 U CN208514545 U CN 208514545U CN 201821124321 U CN201821124321 U CN 201821124321U CN 208514545 U CN208514545 U CN 208514545U
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- Prior art keywords
- rack
- hollow plate
- plate
- cutter
- pedestal
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Abstract
The utility model relates to plastic shaping equipment, in particular to a kind of production line of PP hollow plate, including the feeding device, injection molding machine, shaping equipment, baking oven, corona and the cooling device that set gradually and segmenting device, segmenting device includes pedestal, rack, loading plate and cutter, loading plate level is fixed in rack, and cutter are arranged on the rack and are cut by moving back and forth to the hollow plate on loading plate；Pedestal is placed on ground, and rack is placed in the top of pedestal, and the upper surface of pedestal is wholely set two or more guide rails, and the conveying direction that guide rail is parallel to hollow plate is arranged side by side, and the lower part of rack offers the sliding slot being slidably matched with guide rail；It is also connected with the rack gear parallel with guide rail on pedestal, driving motor is connected with below rack, the output shaft of driving motor is connected with the gear being engaged with rack.The utility model has achieved the effect that the hollow plate before the process of segmenting device cutting hollow plate not will lead to segmenting device because squeezing bending deformation.
Description
Technical field
The utility model relates to plastic shaping equipment, in particular to a kind of production line of PP hollow plate.
Background technique
PP hollow plate is that pp material blends polyethylene raw material by hollow sheet production line extrusion molding, the section of plate
For lattice shape, therefore be also grid hollow plate, a kind of green material of PP hollow plate, be widely used in advertisement background,
Stationery material, industrial packaging etc..
As shown in Figure 1, the production line of existing PP hollow plate includes the feeding device 1 set gradually, injection molding machine 2, sizing
Device 3, the first traction device 4, baking oven 5, corona and cooling device 6, the second traction device 7 and segmenting device 8, plastic grain warp
It crosses after feeding device 1 is delivered to the thawing of injection molding machine 2 and carries out injection molding, form hollow plate after 3 cooling and shaping of shaping equipment
20 basic structures, the first traction device 4 and the second traction device 7 provide tractive force for the conveying of hollow plate 20, then preliminary
Molding hollow plate 20, which enters in baking oven 5, carries out heating shaping, then is surface-treated by corona and cooling device 6, finally
It is packaged after the segmentation of segmenting device 8.
The above-mentioned hollow sheet production line of PP in the prior art is disadvantageous in that the hollow plate 20 in production line is led first
Transport status is constantly under the draw of leading-in device 4 and the second traction device 7, and most of segmenting device 8 is equal at present
For static state cutting, i.e. position of the position of segmenting device 8 in production line immobilizes, when segmenting device 8 cuts hollow plate 20
A period of time is needed, and the hollow plate 20 in this period between segmenting device 8 and the second traction device 7 is still in the shape of conveying
State, the in this way hollow plate 20 during segmenting device 8 cuts hollow plate 20 before segmenting device 8 can be squeezed and bend change
Shape, to influence the quality of hollow plate 20.
Utility model content
The purpose of the utility model is to provide a kind of production line of PP hollow plate, reaches and cut hollow plate in segmenting device
Process not will lead to effect of the hollow plate before segmenting device because squeezing bending deformation.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of production line of PP hollow plate, including feeding device, injection molding machine, shaping equipment, baking oven, the corona set gradually
And cooling device and segmenting device, segmenting device include pedestal, rack, loading plate and cutter, loading plate level is fixed in machine
In frame, the hollow plate to come from corona and cooling device conveying is overlapped on loading plate, and cutter are arranged on the rack and lead to
Reciprocating motion is crossed to cut the hollow plate on loading plate；Pedestal is placed on ground, and rack is placed in the top of pedestal, pedestal
Upper surface be wholely set two or more guide rails, the conveying direction that the guide rail is parallel to hollow plate is arranged side by side, rack
Lower part offer the sliding slot being slidably matched with guide rail；The rack gear parallel with guide rail is also connected on pedestal, the lower section of rack is solid
It is connected to driving motor, the output shaft of driving motor is connected with the gear being engaged with rack.
By using above-mentioned technical proposal, when cutting conveys the hollow plate to come by corona and cooling device, starting is driven
Dynamic motor, driving motor drive rack to move relative to pedestal along guide rail by the engagement of gear and rack gear, make rack in
The conveying speed of hollow plate is identical, ensure that it is opposing stationary between hollow plate and loading plate, later again by cutter to hollow plate
It is cut, the hollow plate overall length in cutting before segmenting device will not generate variation in this way, reached and cut in segmenting device
The process for cutting hollow plate not will lead to effect of the hollow plate because squeezing bending deformation before segmenting device.
Preferably, segmenting device includes the driving mechanism for driving cutter horizontal reciprocating movement, on loading plate along perpendicular to
Hollow sheet conveying direction offers the first cutting groove, and cutter are inserted into the first cutting groove from bottom to top.
By using above-mentioned technical proposal, cutter are moved horizontally by driving mechanism drive to cut to hollow plate
It cuts.
Preferably, driving mechanism includes reciprocating motor, sprocket wheel, chain and mobile station, mobile station is placed on framework soleplate
On upper surface, and mobile station and rack be with the horizontally disposed guide rail guide groove of the first cutting groove by being slidably connected, cutter
Side, reciprocating motor are fixed on the plate upper surface of rack on a mobile station for setting, and reciprocating motor rotates forward or reversion passes through sprocket wheel
It is moved back and forth on the rack with chain-driving mobile station.
By using above-mentioned technical proposal, reciprocating motor drives chain mobile by sprocket wheel, and chain-driving mobile station is opposite
Machine frame movement, so that cutter be driven to be moved；After cutter are moved to extreme position, reciprocating motor reversion drives and moves
Dynamic platform reverse movement, moves back and forth.
It is connect preferably, cutter pass through the cylinder being vertically arranged with mobile station.
By using above-mentioned technical proposal, when without cutting, the cylinder between cutter and mobile station is shunk, and is guaranteed
Cutter are without departing from the first cutting groove, to protect cutter and hollow plate.
Preferably, segmenting device also includes to hold down assembly, the compression gas being vertically arranged including several that holds down assembly
Cylinder and horizontally disposed pressure plate, compression cylinder and pressure plate are located above loading plate, the both ends of compression cylinder respectively with rack
Affixed with pressure plate, the lower surface of pressure plate offers the second cutting groove corresponding with the first cutting groove.
By using above-mentioned technical proposal, during cutting hollow plate, compression cylinder starting pushes pressure plate downward
It is mobile, the hollow plate above loading plate is compressed, guarantees that cutter not will drive that hollow plate is mobile and shadow during cutting
Ring cutting surfaces quality.
Preferably, being provided with trimming mechanism between shaping equipment and baking oven, garbage collection dress is provided with after trimming mechanism
It sets.
By using above-mentioned technical proposal, after shaping equipment sizing, the edge molding of preliminary molding hollow plate
Unevenly, it is therefore desirable to be cut off by trimming mechanism, guarantee the quality and uniformity of side, waste material collection device is pair
The waste material that trimming generates is collected.
Preferably, waste material collection device includes that pedestal, cutting box, cutter, backing plate and cutting cylinder, pedestal are placed on ground
On, cutting box is fixed in above pedestal, and backing plate and cutter are located inside cutting box, and cutting cylinder is fixed on cutting box or pedestal
On, it cuts off the piston rod of cylinder and cutter is fixed and cutter can be pushed close to backing plate.
By using above-mentioned technical proposal, with the conveying of hollow plate, the waste material by trimming mechanism trimming generation is together
As hollow plate moves forward, waste material enters in cutting box, cuts off cylinder intermittent start, pushes cutter close to backing plate, by position
Waste material cutting between cutter and backing plate, makes waste material form discontinuously broken strip, convenient for collecting.
Preferably, being connected with guide pipe on cutting box, the guide pipe is connected to cutting box.
By using above-mentioned technical proposal, guide pipe can be such that scrap ribbon steadily enters in cutting box.
In conclusion the utility model has following technical effect that by the way that the rack in segmenting device to be arranged to
Conveying direction relative to pedestal along hollow plate moves, and rack is mobile relative to pedestal during segmenting device cuts hollow plate,
Keep rack identical as the conveying speed of hollow plate with respect to the movement speed of pedestal, reaches the mistake in segmenting device cutting hollow plate
Journey not will lead to effect of the hollow plate before segmenting device because squeezing bending deformation.
Detailed description of the invention
Fig. 1 is the layout drawing of PP hollow sheet production line in the prior art；
Fig. 2 is the layout drawing of the utility model；
Fig. 3 is the three dimensional structure diagram of segmenting device；
Fig. 4 is the partial structural diagram of prominent segmenting device middle gear and rack gear；
Fig. 5 is the structural schematic diagram of the second cutting groove in prominent segmenting device；
Fig. 6 is position view of the waste material collection device in PP hollow sheet production line；
Fig. 7 is the schematic diagram for highlighting cutting box internal structure.
In figure, 1, feeding device；2, injection molding machine；3, shaping equipment；4, the first traction device；5, baking oven；6, corona and cold
But device；61, corona machine；62, cooling device；7, the second traction device；8, segmenting device；81, pedestal；811, guide rail；812,
Rack gear；82, rack；821, sliding slot；822, driving motor；823, gear；83, loading plate；831, the first cutting groove；84, it cuts
Knife；841, tool cylinder；85, driving mechanism；852, sprocket wheel；853, chain；854, mobile station；86, it holds down assembly；861, it compresses
Cylinder；862, pressure plate；863, the second cutting groove；9, waste material collection device；91, pedestal；92, box is cut off；93, cutter；94, it pads
Plate；95, cylinder is cut off；96, guide pipe；10, environmental protecting device；101, air draught head；102, suspended hood；103, suction ventilator；104, mistake
Filter；20, hollow plate.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.The wherein identical attached drawing of identical components
Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom
Face " and " top surface " refer to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from particular elements geometry
The direction at center.
As shown in Fig. 2, a kind of production line of PP hollow plate, including the feeding device 1, injection molding machine 2, sizing dress set gradually
The 3, first traction device 4, baking oven 5, corona and cooling device 6, the second traction device 7 and segmenting device 8 are set, plastic grain passes through
Feeding device 1 is delivered to after injection molding machine 2 melts and carries out injection molding, and hollow plate 20 is formed after 3 cooling and shaping of shaping equipment
Basic structure, the first traction device 4 and the second traction device 7 provide tractive force for the conveying of hollow plate 20, then tentatively at
The hollow plate 20 of type, which enters in baking oven 5, carries out heating shaping, then is surface-treated by corona and cooling device 6, most passes through afterwards
Over-segmentation device 8 is packaged after dividing.Certainly, the position of the first traction device 4 and the second traction device 7 also can be set in PP
The other positions of hollow plate production line, the conveying played as PP hollow plate provide power.
As shown in figure 3, segmenting device 8 includes pedestal 81, rack 82, loading plate 83 and cutter 84, loading plate 83 is horizontal
It is fixed in rack 82, conveys the hollow plate 20 to come from corona and cooling device 6 and be overlapped on loading plate 83, cutter 84 are set
It sets in rack 82 and the hollow plate 20 on loading plate 83 is cut by moving back and forth；Pedestal 81 is placed on ground,
Rack 82 is placed in the top of pedestal 81, and the upper surface of pedestal 81 is wholely set two or more guide rails 811, the guide rail
811 conveying directions for being parallel to hollow plate 20 are arranged side by side, and the lower part of rack 82 offers the sliding slot being slidably matched with guide rail 811
821；As shown in figure 4, being also connected with the rack gear 812 parallel with guide rail 811 on pedestal 81, the lower section of rack 82 is connected with driving electricity
Machine 822, the output shaft of driving motor 822 are connected with and 812 meshed gears 823 of rack gear.It is cutting in this way from corona and cooling
When device 6 conveys the hollow plate 20 to come, start driving motor 822, driving motor 822 is nibbled by gear 823 and rack gear 812
Cooperation with driving rack 82 to move synchronously along guide rail 811 and hollow plate 20, ensure that use segmenting device 8 to hollow plate 20 into
The length of hollow plate 20 during row cutting between segmenting device 8 and corona and cooling device 6 will not change, thus
It avoids the hollow plate between segmenting device 8 and corona and cooling device 6 and bending deformation occurs because of extruding；Meanwhile rack 82
The movement speed of opposite pedestal 81 is identical as the conveying speed of hollow plate 20, therefore loading plate 83 and hollow plate 20 are opposing stationary,
It can be improved the flatness and cut quality of cut surface during cutter 84 cut hollow plate 20 in this way.
For cutter 84 in segmenting device 8 there are many form is arranged, it is wide that cutter 84 can be greater than hollow plate 20 for length
The solid tool of degree, and the top of loading plate 83 is set, by being pumped vertically in 83 top of loading plate
Hollow plate 20 is cut；Cutter 84 can also be vertically arranged sheet cutter, by back and forth horizontally move to hollow plate 20 into
Row cutting.In the present embodiment, as shown in figure 3, the setting form of cutter 84 uses the latter, segmenting device 8 includes that driving is cut
The driving mechanism 85 of 84 horizontal reciprocating movement of cutter, and the moving direction of cutter 84 is perpendicular to the conveying side of hollow plate 20
To along perpendicular to the first cutting groove 831 is offered on 20 conveying direction of hollow plate on loading plate 83, driving mechanism 85 is located at carrying
83 lower section of plate, cutter 84 are inserted into the first cutting groove 831 from bottom to top.
The structure of driving mechanism 85 also there are many, be able to drive cutter 84 in the first cutting groove 831 back and forth horizontally
Based on movement.In the present embodiment, as shown in figure 3, driving mechanism 85 includes reciprocating motor (not shown), sprocket wheel 852, chain
Item 853 and mobile station 854, mobile station 854 are placed on the upper surface of 82 bottom plate of rack, and mobile station 854 and rack 82
By being slidably connected with the horizontally disposed guide rail guide groove of the first cutting groove 831, cutter 84 are arranged above mobile station 854, past
Compound machine is fixed on the plate upper surface of rack 82, and reciprocating motor rotates forward or reversion is driven by sprocket wheel 852 and chain 853 and moved
Dynamic platform 854 moves back and forth in rack 82.Reciprocating motor drives chain 853 mobile by sprocket wheel 852, and chain 853 drives movement
Platform 854 is mobile relative to rack 82, so that cutter 84 be driven to be moved；After cutter 84 are moved to extreme position, back and forth
Motor reversal drives mobile station 854 to move backward, moves back and forth.
Since cutter 84 are to stretch out the first cutting groove 831 during cutting hollow plate 20, it is possible to be cut non-
Also hollow plate 20 can be damaged to during cutting.To solve the above problems, as shown in figure 3, can be by cutter 84 by setting vertically
The tool cylinder 841 set is connect with mobile station 854.In this way when needing to cut hollow plate 20, starting tool cylinder 841 is stretched upwards
Out, cutter 84 is made to stretch out the first cutting groove 831；When not needing cutting hollow plate 20, starting tool cylinder 841 is shunk, and is made
Cutter 84 retract in the first cutting groove 831.
In addition, as shown in figure 3, may be provided for compressing hollow plate 20 when cutting hollow plate 20 on segmenting device 8
Hold down assembly 86, described hold down assembly 86 includes compression cylinder 861 and horizontally disposed pressure plate that several are vertically arranged
862, compression cylinder 861 and pressure plate 862 are located at 83 top of loading plate, the both ends of compression cylinder 861 respectively with rack 82 and pressure
Tight plate 862 is affixed, and the lower surface of pressure plate 862 offers second cutting groove 863(corresponding with the first cutting groove 831 and sees figure
5).In this way when needing to cut hollow plate 20, starting compression cylinder 861 is stretched out, and is pushed pressure plate 862 to move down, will be carried
The hollow plate 20 of 83 top of plate compresses, and guarantees that cutter 84 not will drive the movement of hollow plate 20 during cutting and influence to cut
Cut surface quality.
In the production line of PP hollow plate, the edge by the preliminary hollow plate 20 after molding of shaping equipment 3 is not whole
Together, the surface quality of side is also bad, it is therefore desirable to trimming mechanism be arranged after shaping equipment 3 by the two sides of hollow plate 20
It carries out cutting edge and modifies (see figure 6), be provided with waste material collection device 9 after trimming mechanism and be collected.Trimming mechanism in figure not
It marks, structure is also relatively simple, repeats no more in the present embodiment.
The form of waste material collection device 9 can also there are many kinds of, such as closed reel rewinding etc. uses in the present embodiment
It is turned off formula rewinding.As shown in fig. 7, waste material collection device 9 includes pedestal 91, cutting box 92, cutter 93, backing plate 94 and cutting gas
Cylinder 95, pedestal 91 are placed on the ground, and cutting box 92 is fixed in 91 top of pedestal, and backing plate 94 and cutter 93 are located in cutting box 92
Portion, cutting cylinder 95 are fixed on cutting box 92 or pedestal 91, cut off the piston rod of cylinder 95 and cutter 93 is fixed and energy
Enough push cutter 93 close to backing plate 94.With the conveying of hollow plate 20, the waste material generated by trimming mechanism trimming together with
Hollow plate 20 moves forward, and waste material enters in cutting box 92, cuts off 95 intermittent start of cylinder, pushes cutter 93 close to backing plate
94, the waste material between cutter 93 and backing plate 94 is cut off, waste material is made to form discontinuously broken strip, convenient for collecting.
As shown in fig. 7, in order to guarantee that trimming waste material can steadily enter in cutting box 92, it can be solid on cutting box 92
Connect guide pipe 96, the guide pipe 96 is connected to cutting box 92, and guide pipe 96 is towards trimming mechanism.
As shown in Fig. 2, corona and cooling device 6 include corona machine 61 and cooling device in the production line of PP hollow plate
62, it is surface-treated by upper and lower surface of the corona machine 61 to hollow plate 20, later again by cooling device 62 to corona machine
61 treated that hollow plate 20 is cooled down.Wherein corona machine 61 is to be surface-treated by shelf depreciation to hollow plate 20,
The pernicious gases such as ozone, nitrogen oxide can be generated in the process of work, therefore ring can be set in the production line of PP hollow plate
Protection device 10 reduces distributing for pernicious gas as much as possible.Environmental protecting device 10 includes suction ventilator 103, filter 104 and air draught
First 101, the end of air draught head 101 be connected to the top of corona machine 61 and be connected to inside corona machine 61, while air draught head 101
It is connect by pipeline with the air inlet of suction ventilator 103, the air outlet of suction ventilator 103 is connected to the filter, so just can will be electric
The most pernicious gas suction and conveyings generated when airsick 61 corona are handled to filter, reduce the pollution of environment and to operation
The actual bodily harm of worker.
In addition, as shown in Fig. 2, due at segmenting device 8, segment need after hollow plate 20 operator carry and
Stacking hollow plate 20, therefore setting suspended hood 102 can be hung in the top of segmenting device 8, hollow plate at segmenting device 8 is dissipated
The pernicious gas of hair is collected, and protects the health of operator.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of production line of PP hollow plate, including the feeding device (1), injection molding machine (2), shaping equipment (3), baking set gradually
Case (5), corona and cooling device (6) and segmenting device (8), which is characterized in that segmenting device (8) includes pedestal (81), rack
(82), loading plate (83) and cutter (84), loading plate (83) level is fixed in rack (82), from corona and cooling device
(6) hollow plate (20) that conveying comes is overlapped on loading plate (83), and cutter (84) are arranged on rack (82) and pass through
The hollow plate (20) on loading plate (83) is cut in reciprocating motion；Pedestal (81) is placed on ground, and rack (82) is placed in
The top of pedestal (81), the upper surface of pedestal (81) are wholely set two or more guide rails (811), and the guide rail (811) is flat
Row is arranged side by side in the conveying direction of hollow plate (20), and the lower part of rack (82) offers the cunning being slidably matched with guide rail (811)
Slot (821)；It is also connected on pedestal (81) rack gear parallel with guide rail (811) (812), rack is connected with driving below (82)
Motor (822), the output shaft of driving motor (822) are connected with and rack gear (812) meshed gears (823).
2. a kind of production line of PP hollow plate according to claim 1, which is characterized in that segmenting device (8) includes driving
The driving mechanism (85) of cutter (84) horizontal reciprocating movement, along being opened perpendicular to hollow plate (20) conveying direction on loading plate (83)
Equipped with the first cutting groove (831), cutter (84) are inserted into the first cutting groove (831) from bottom to top.
3. a kind of production line of PP hollow plate according to claim 2, which is characterized in that driving mechanism (85) includes reciprocal
Motor, sprocket wheel (852), chain (853) and mobile station (854), mobile station (854) be placed on rack (82) bottom plate upper surface it
On, and mobile station (854) with rack (82) by being slidably connected with the horizontally disposed guide rail guide groove of the first cutting groove (831),
Cutter (84) setting is above mobile station (854), and reciprocating motor is fixed on the plate upper surface of rack (82), and reciprocating motor is just
Turn or reversion is moved back and forth on rack (82) by sprocket wheel (852) and chain (853) drive mobile station (854).
4. a kind of production line of PP hollow plate according to claim 3, which is characterized in that cutter (84) by setting vertically
The tool cylinder (841) set is connect with mobile station (854).
5. a kind of production line of PP hollow plate according to claim 2, which is characterized in that segmenting device (8) is also comprising pressure
Tight component (86), hold down assembly (86) include compression cylinder (861) and horizontally disposed compression that several are vertically arranged
Plate (862), compression cylinder (861) and pressure plate (862) are located above loading plate (83), the both ends difference of compression cylinder (861)
Affixed with rack (82) and pressure plate (862), the lower surface of pressure plate (862) offers corresponding with the first cutting groove (831)
The second cutting groove (863).
6. a kind of production line of PP hollow plate according to claim 1, which is characterized in that shaping equipment (3) and baking oven (5)
Between be provided with trimming mechanism, be provided with waste material collection device (9) after trimming mechanism.
7. a kind of production line of PP hollow plate according to claim 1, which is characterized in that waste material collection device (9) includes
Pedestal (91), cutting box (92), cutter (93), backing plate (94) and cutting cylinder (95), pedestal (91) are placed on the ground, and are cut off
Box (92) is fixed in above pedestal (91), and backing plate (94) and cutter (93) are located at cutting box (92) inside, and cutting cylinder (95) is solid
It is scheduled on cutting box (92) or pedestal (91), the piston rod for cutting off cylinder (95), which is fixed and can be pushed with cutter (93), to be cut
Knife (93) is close to backing plate (94).
8. a kind of production line of PP hollow plate according to claim 7, which is characterized in that be connected with and lead in cutting box (92)
To pipe (96), the guide pipe (96) is connected to cutting box (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124321.2U CN208514545U (en) | 2018-07-16 | 2018-07-16 | A kind of production line of PP hollow plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124321.2U CN208514545U (en) | 2018-07-16 | 2018-07-16 | A kind of production line of PP hollow plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208514545U true CN208514545U (en) | 2019-02-19 |
Family
ID=65335830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821124321.2U Expired - Fee Related CN208514545U (en) | 2018-07-16 | 2018-07-16 | A kind of production line of PP hollow plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208514545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400384A (en) * | 2021-05-11 | 2021-09-17 | 浙江都达新材料科技有限公司 | PVC tubular product production cutting equipment |
-
2018
- 2018-07-16 CN CN201821124321.2U patent/CN208514545U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400384A (en) * | 2021-05-11 | 2021-09-17 | 浙江都达新材料科技有限公司 | PVC tubular product production cutting equipment |
| CN113400384B (en) * | 2021-05-11 | 2024-04-16 | 浙江都达新材料科技有限公司 | PVC tubular product production cutting equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 Termination date: 20200716 |