CN107433711A - A kind of shaped device of high-accuracy plastic carrier product - Google Patents
A kind of shaped device of high-accuracy plastic carrier product Download PDFInfo
- Publication number
- CN107433711A CN107433711A CN201610350530.8A CN201610350530A CN107433711A CN 107433711 A CN107433711 A CN 107433711A CN 201610350530 A CN201610350530 A CN 201610350530A CN 107433711 A CN107433711 A CN 107433711A
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- China
- Prior art keywords
- mould
- block
- plastic carrier
- workbench
- rocker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 44
- 239000004033 plastic Substances 0.000 title claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 description 9
- 238000004806 packaging method and process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004100 electronic packaging Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
- B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/42—Heating or cooling
- B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/44—Removing or ejecting moulded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2029/00—Belts or bands
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of shaped device of high-accuracy plastic carrier product, feed mechanism, actuating mechanism and at the uniform velocity material pulling mechanism are sequentially provided between its raw material charging tray and rewinding charging tray；Heat block is provided between feed mechanism and actuating mechanism；One end of actuating mechanism is fixed on workbench, and the bottom of the other end is connected with mould；Actuating mechanism includes support post, rocker-arm link, hangs die device, adjusting device for travel；Mould includes upper die combination and lower die combination, and upper die combination includes panel, upper bolster and upper mould stripper；Lower die combination includes cavity plate template, lower mould unloading block and lower mould unloading block fixed plate, lower mould unloading block fixed plate is provided with discharging fixed plate thimble, the bottom of lower mould unloading block fixed plate is provided with stripper jacking spring, and stripper jacking spring is fixed on the equipment bay of workbench bottom.The present invention is simple in construction, easily operated, steady quality, raw material are heated evenly, it is good to be molded uniformity, is not in that sideline stretching collapses.
Description
Technical field
The present invention relates to carrier band product technique field, more particularly to a kind of simple in construction, easy to operate, stable, raw material to be heated evenly, be molded the shaped device that uniformity is good, is not in the high-accuracy plastic carrier product that sideline stretching collapses.
Background technology
Carry (Carrier Tape), refer in a kind of band-type product applied to electronic packaging field, it has specific thickness, and be equally spaced the hole (also known as pocket) for bearing electronic component and the positioning hole for being indexed positioning in its longitudinal direction.Carrier band is broadly divided into plastic carrier and paper carrying belt by material, and at present, the application of plastic carrier is relatively broad.Plastic carrier product, usual earlier be intended for electronic component such as crystal oscillator, inductance, electric capacity, larger piece packaging carrier use, its product overall dimensions is big, and relative accuracy requirements are lower slightly；Even the country is mainly also mainly used in the packaging use of the electronic components such as integrated circuit, BGA in the plastic carrier product of production now.
At present, product is carried for packing plastics used in microwafer, there are higher technical requirements.The country is used for the process units of packing plastics carrier band product used in microwafer, its structure is as shown in Figure 1, including electrical bar 01, round punch 02, square punch-pin 03, mold seat 04, in production process, the electrical bar 01 heats to mold seat 04, after heat is transmitted to round punch 02 and square punch-pin 03, die punch punching press is on plastic carrier cladding, to realize the processing and forming of plastic carrier.Although the above method is manufactured that the plastic carrier of microwafer, but the shortcomings that certain be present：It can not but reach higher demanding criteria during microwafer packaging in use, such as：Bottom shaping is not in place（Fillet）, a variety of serious problems such as the one time punching molded inconsistent, alice of the mould caused by uneven heating is even.Therefore, the used plastic carrier product for microwafer packaging all also relies on import in the market.
To sum up, need at present it is a kind of be heated evenly raw material, be molded consistent, stamping surface corner be not in fillet, alice phenomenon the plastic carrier for microwafer shaped device, to meet the needs of market.
The content of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, provide a kind of shaped device of high-accuracy plastic carrier product simple in construction, easily operated, easy to adjust, its operational effect is reliable, steady quality, in production process, raw material are heated evenly, it is good to be molded uniformity, are not in that sideline stretching collapses.
To solve problems of the prior art, the concrete technical scheme that the present invention uses is：
A kind of shaped device of high-accuracy plastic carrier product, it includes workbench, is respectively arranged on the raw material charging tray and rewinding charging tray at workbench both ends, groove is provided among the workbench, feed mechanism, actuating mechanism and at the uniform velocity material pulling mechanism are sequentially provided between the raw material charging tray and rewinding charging tray；Heat block is provided between the feed mechanism and actuating mechanism, the heat block is in the groove inside workbench；One end of the actuating mechanism is fixed on workbench, and the bottom of the other end is connected with mould；It is additionally provided between the actuating mechanism and at the uniform velocity material pulling mechanism and draws material pin wheel, the intermittent discharging action for drawing material pin wheel is converted to and at the uniform velocity discharged by the at the uniform velocity material pulling mechanism；
The actuating mechanism include being fixed on the support post on workbench, the rocker-arm link being set up in above the support post, be connected located at rocker-arm link one end and with the mould hang die device, located at the rocker-arm link other end for adjusting the adjusting device for travel of the mould shift motion；
The mould includes upper die combination and lower die combination, the upper die combination includes panel, upper bolster and the upper mould stripper from top to bottom set gradually, upper mould punch-pin is provided with the upper bolster, the upper mould punch-pin is pressed on the plastic carrier on workbench by the upper mould stripper；The lower die combination includes cavity plate template, the lower mould unloading block in cavity plate template and the lower mould unloading block fixed plate located at lower mould unloading block bottom located at the upper mould stripper bottom, the lower mould unloading block fixed plate is provided with discharging fixed plate thimble, the discharging fixed plate thimble is arranged in cavity plate template, the bottom of the lower mould unloading block fixed plate is provided with stripper jacking spring, and the stripper jacking spring is fixed on the equipment bay of workbench bottom.
Preferable scheme, the feed mechanism include feeding motor and the drawing-inroller located at feeding motor output shaft end.
Further preferred scheme, the quantity of the heat block is more than one, and the heat block is arranged side by side.
Scheme still more preferably, it is rotation connection between the support post and rocker-arm link, stroke fine setting hole is offered on the rocker-arm link, stroke fine setting eccentric shaft is provided between the support post and rocker-arm link, the stroke fine setting eccentric shaft is arranged in stroke fine setting hole, and the diameter of stroke fine setting eccentric shaft is less than the diameter in stroke fine setting hole.
Scheme still further preferably, the stroke fine setting eccentric shaft are externally provided with regulation handle.
The die device that hangs includes the H-shaped contiguous block located at rocker-arm link one end bottom and the T-shaped hanging block located at the H-shaped contiguous block bottom, and the T-shaped hanging block and the panel of the mould are detachably connected, such as bolt connection.
The adjusting device for travel includes active eccentric shaft, the bearing holder (housing, cover) outside active eccentric shaft, the U-shaped contiguous block located at bearing holder (housing, cover) top for being fixed on the bearing block on workbench, being set up on bearing block, the top of the U-shaped contiguous block is connected with the other end of the rocker-arm link, Traffic control system bolt is provided between the U-shaped contiguous block and bearing holder (housing, cover), the Traffic control system bolt between U-shaped contiguous block and bearing holder (housing, cover) with being threadedly coupled.
By using such scheme, compared with prior art, it has technical effect that a kind of shaped device of high-accuracy plastic carrier product of the invention：
1st, the heat block that the present invention is set by adding horizontal Tile before actuating mechanism and mould, heat block is fixed on below plastic carrier raw material, the raw material back side is set to be heated, it is easier to drawing and forming of the material in punching course, effectively overcome raw material and be molded inconsistence problems caused by uneven heating is even, stamping surface is avoided because sideline stretching collapses the fillet phenomenon of appearance, is not in due to component small volume and displacement or obscission after the packaging that occurs.
2nd, by setting at the uniform velocity material pulling mechanism, the intermittent discharging action for drawing material pin wheel is converted to and at the uniform velocity discharged, makes rewinding charging tray that the material strip after shaping is smoothly wound, operation is more convenient.
3rd, by setting adjusting device for travel, the shift motion of mould can be effectively controlled, so as to be suitable for the carrier band product of various thickness, use range is wider.
4th, stroke fine setting device is provided between support post and rocker-arm link, stroke fine setting can be achieved by rotating regulation handle, be not only simple in structure, and it is convenient and practical in die adjustment.
5th, stripper jacking spring and the matching relationship of discharging fixed plate thimble dexterity, the simple and effective discharging problem realized after plastic carrier shaping have been used in lower mould shedding mechanism.
6th, the present invention is simple in construction, easily operated, easy to adjust；And in terms of product quality, long-play effect of the present invention is reliably, stably.
Brief description of the drawings
Fig. 1 is the shaped device of the plastic carrier of microwafer in the prior art；
Fig. 2 is a kind of overall structure diagram of the shaped device of high-accuracy plastic carrier product of the present invention；
Fig. 3 is a kind of structure enlargement diagram of the actuating mechanism of the shaped device of high-accuracy plastic carrier product of the present invention；
Fig. 4 is a kind of structure enlargement diagram of the mould of the shaped device of high-accuracy plastic carrier product of the present invention；
Fig. 5 is a kind of adjusting device for travel schematic enlarged-scale view of the shaped device of high-accuracy plastic carrier product of the present invention；
Fig. 6 is the technology of the present invention plastic carrier shaping schematic view；
Fig. 7 is non-compliant plastic carrier shaping schematic view.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to instantiation and referring to the drawings, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit the scope of the present invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring idea of the invention.
As shown in Figures 2 to 5, it is a kind of shaped device of high-accuracy plastic carrier product of the present invention.
In Fig. 2,1 is raw material charging tray, and 2 be drawing-inroller, and 3 be heat block, and 4 be actuating mechanism, and 5 be mould, and 6 draw material pin wheel, and 7 be at the uniform velocity material pulling mechanism, and 8 be rewinding charging tray.
Raw material（Material strip）It is placed on raw material charging tray 1, by drawing-inroller 2 by material strip by constantly being pulled out on raw material charging tray 1, drawing-inroller 2 is by motor driven；It is heated by material strip after heat block 3, after the material strip after being heated passes through mould 5, material strip, which is stamped, is drawn into required shape；Mould 5 is driven by actuating mechanism 4, to complete the press work of mould；By drawing the action between material pin wheel 6 and mould 5 and actuating mechanism 4 to coordinate, the material strip after shaping is pulled out by mould；At the uniform velocity material pulling mechanism 7 is mainly used at the uniform velocity discharging for being converted to the intermittent discharging action of drawing material pin wheel 6, makes rewinding charging tray 8 that the material strip after shaping is smoothly wound.
In Fig. 3,9 be support post, and 10 be T-shaped hanging block, and 11 be H type contiguous blocks, and 12 be rocker-arm link, and 13 be that stroke finely tunes eccentric shaft, and 14 be U-shaped contiguous block, and 15 be Traffic control system bolt, and 16 be bearing holder (housing, cover), and 17 be active eccentric shaft, and 18 be bearing block.
Whole actuating mechanism is solid to be supported by support post 9, and T-shaped hanging block 10 and rocker-arm link 12 are fixedly connected by H types contiguous block 11 by pin；Rocker-arm link 12 is finely tuned eccentric shaft 13 by stroke and is fixed on support post 9, and the trace regulation of mold stroke can be completed by finely tuning eccentric shaft 13 by rotational travel（With reference to figure 5）；U-shaped contiguous block 14 is attached fixation by pin and rocker-arm link 12；Fixation is attached using Traffic control system bolt 15 between U-shaped contiguous block 14 and bearing holder (housing, cover) 16, when the mold stroke for needing to adjust is slightly larger, can be completed by rotating distance adjustment bolt 15；Active eccentric shaft 17 is fixed by two bearing blocks 18, drives whole actuating mechanism to realize that up-and-down reciprocating acts when active eccentric shaft 17 rotates.
In Fig. 4,19 be heat block, and 20 be upper bolster, and 21 be upper mould stripper, and 22 be cavity plate template, and 23 be lower mould unloading block, and 24 be lower mould unloading block fixed plate, and 25 be upper mould punch-pin（Upper punch pin）, 26 be discharging fixed plate thimble, and 27 be that stripper jacks spring, and 28 be plastic carrier, and 29 be equipment bay.
Upper mould punch-pin（Upper punch pin）25 are fixed on upper bolster 20, upper mould punch-pin（Upper punch pin）25 are pressed on plastic carrier 28 through upper mould stripper 21.Lower mould unloading block 23 is parallel to be fixed in lower mould unloading block fixed plate 24, and plastic carrier 28 is released from cavity plate template 22.
When upper mould stripper 21 moves down with upper mould, discharging fixed plate thimble 26 is down pressed therewith, and lower mould unloading block fixed plate 24 is pushed, and plays and required space is conceded when being molded to plastic carrier.When mould molds, lower mould unloading block fixed plate 24 up pushes away the effect for reaching and plastic carrier 28 being released from mould with stripper jacking spring 27.Stripper jacking spring 27 is fixed on the upper and lower lower section of mould unloading block fixed plate 24 of equipment bay 29 and plays a part of jacking.
In Fig. 5, the outside of stroke fine setting eccentric shaft 13 is provided with regulation handle 30, by rotating regulation handle 30, can easily achieve stroke fine setting.
Fig. 6 is the technology of the present invention plastic carrier shaping schematic view, its not due to sideline stretching collapse caused by fillet phenomenon, avoid the displacement after the packaging occurred due to component small volume or obscission；And Fig. 7 is non-compliant plastic carrier shaping schematic view, its fillet phenomenon is more obvious.
The foregoing is merely illustrative of the preferred embodiments of the present invention, the protection domain being not intended to limit the invention, and within the spirit and principles of the invention, any modification for being made, equivalent substitution, is all contained within protection scope of the present invention.
Claims (7)
- A kind of 1. shaped device of high-accuracy plastic carrier product, it includes workbench, is respectively arranged on the raw material charging tray and rewinding charging tray at workbench both ends, it is characterized in that, groove is provided among the workbench, feed mechanism, actuating mechanism and at the uniform velocity material pulling mechanism are sequentially provided between the raw material charging tray and rewinding charging tray；Heat block is provided between the feed mechanism and actuating mechanism, the heat block is in the groove inside workbench；One end of the actuating mechanism is fixed on workbench, and the bottom of the other end is connected with mould；It is additionally provided between the actuating mechanism and at the uniform velocity material pulling mechanism and draws material pin wheel, the intermittent discharging action for drawing material pin wheel is converted to and at the uniform velocity discharged by the at the uniform velocity material pulling mechanism；The actuating mechanism include being fixed on the support post on workbench, the rocker-arm link being set up in above the support post, be connected located at rocker-arm link one end and with the mould hang die device, located at the rocker-arm link other end for adjusting the adjusting device for travel of the mould shift motion；The mould includes upper die combination and lower die combination, the upper die combination includes panel, upper bolster and the upper mould stripper from top to bottom set gradually, upper mould punch-pin is provided with the upper bolster, the upper mould punch-pin is pressed on the plastic carrier on workbench by the upper mould stripper；The lower die combination includes cavity plate template, the lower mould unloading block in cavity plate template and the lower mould unloading block fixed plate located at lower mould unloading block bottom located at the upper mould stripper bottom, the lower mould unloading block fixed plate is provided with discharging fixed plate thimble, the discharging fixed plate thimble is arranged in cavity plate template, the bottom of the lower mould unloading block fixed plate is provided with stripper jacking spring, and the stripper jacking spring is fixed on the equipment bay of workbench bottom.
- A kind of 2. shaped device of high-accuracy plastic carrier product according to claim 1, it is characterised in that：The feed mechanism includes feeding motor and the drawing-inroller located at feeding motor output shaft end.
- A kind of 3. shaped device of high-accuracy plastic carrier product according to claim 1, it is characterised in that：The quantity of the heat block is more than one, and the heat block is arranged side by side.
- A kind of 4. shaped device of high-accuracy plastic carrier product according to claim 1, it is characterised in that：It is rotation connection between the support post and rocker-arm link, stroke fine setting hole is offered on the rocker-arm link, stroke fine setting eccentric shaft is provided between the support post and rocker-arm link, the stroke fine setting eccentric shaft is arranged in stroke fine setting hole, and the diameter of stroke fine setting eccentric shaft is less than the diameter in stroke fine setting hole.
- A kind of 5. shaped device of high-accuracy plastic carrier product according to claim 4, it is characterised in that：The stroke fine setting eccentric shaft is externally provided with regulation handle.
- A kind of 6. shaped device of high-accuracy plastic carrier product according to claim 1, it is characterised in that：The die device that hangs is detachably connected including the H-shaped contiguous block located at rocker-arm link one end bottom and the T-shaped hanging block located at the H-shaped contiguous block bottom, the T-shaped hanging block and the panel of the mould.
- A kind of 7. shaped device of high-accuracy plastic carrier product according to claim 1, it is characterised in that：The adjusting device for travel includes active eccentric shaft, the bearing holder (housing, cover) outside active eccentric shaft, the U-shaped contiguous block located at bearing holder (housing, cover) top for being fixed on the bearing block on workbench, being set up on bearing block, the top of the U-shaped contiguous block is connected with the other end of the rocker-arm link, Traffic control system bolt is provided between the U-shaped contiguous block and bearing holder (housing, cover), the Traffic control system bolt between U-shaped contiguous block and bearing holder (housing, cover) with being threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610350530.8A CN107433711A (en) | 2016-05-25 | 2016-05-25 | A kind of shaped device of high-accuracy plastic carrier product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610350530.8A CN107433711A (en) | 2016-05-25 | 2016-05-25 | A kind of shaped device of high-accuracy plastic carrier product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107433711A true CN107433711A (en) | 2017-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610350530.8A Pending CN107433711A (en) | 2016-05-25 | 2016-05-25 | A kind of shaped device of high-accuracy plastic carrier product |
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| Country | Link |
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| CN (1) | CN107433711A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203655594U (en) * | 2013-11-11 | 2014-06-18 | 中国核电工程有限公司 | Stepless adjusting device for metering pump stroke |
| KR20140136631A (en) * | 2013-05-21 | 2014-12-01 | 고순학 | Carrier tape forming machine |
| CN104942880A (en) * | 2015-07-02 | 2015-09-30 | 张宝宝 | Deburring system and method for paper carrier band |
| CN105215198A (en) * | 2015-11-16 | 2016-01-06 | 重庆持恒模具有限公司 | Stretching die |
| CN205201612U (en) * | 2015-10-26 | 2016-05-04 | 贵州味源食品发展有限公司 | Vegetables comminution device |
| CN205767435U (en) * | 2016-05-25 | 2016-12-07 | 苏州英士力精密科技有限公司 | A kind of shaped device of high-accuracy plastic carrier goods |
-
2016
- 2016-05-25 CN CN201610350530.8A patent/CN107433711A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140136631A (en) * | 2013-05-21 | 2014-12-01 | 고순학 | Carrier tape forming machine |
| CN203655594U (en) * | 2013-11-11 | 2014-06-18 | 中国核电工程有限公司 | Stepless adjusting device for metering pump stroke |
| CN104942880A (en) * | 2015-07-02 | 2015-09-30 | 张宝宝 | Deburring system and method for paper carrier band |
| CN205201612U (en) * | 2015-10-26 | 2016-05-04 | 贵州味源食品发展有限公司 | Vegetables comminution device |
| CN105215198A (en) * | 2015-11-16 | 2016-01-06 | 重庆持恒模具有限公司 | Stretching die |
| CN205767435U (en) * | 2016-05-25 | 2016-12-07 | 苏州英士力精密科技有限公司 | A kind of shaped device of high-accuracy plastic carrier goods |
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Application publication date: 20171205 |
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