CN102862709A - Heat-sealing packaging device and transverse sealing cutting unit thereof - Google Patents
Heat-sealing packaging device and transverse sealing cutting unit thereof Download PDFInfo
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- CN102862709A CN102862709A CN2012103857239A CN201210385723A CN102862709A CN 102862709 A CN102862709 A CN 102862709A CN 2012103857239 A CN2012103857239 A CN 2012103857239A CN 201210385723 A CN201210385723 A CN 201210385723A CN 102862709 A CN102862709 A CN 102862709A
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- cutter groove
- hot pressing
- cutter
- regulating block
- horizontal sealing
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Abstract
A transverse sealing cutting unit comprises a pruning shear, a plurality of hot-pressing glands arranged on the pruning shear, cutters correspondingly arranged on each hot-pressing gland, and pairs of regulating mechanisms arranged on each hot-pressing gland, wherein cutter grooves are arranged in the hot-pressing glands; each cutter comprises a cutter body and a cutter blade point; and each regulating mechanism comprises a regulating block arranged in each cutter groove, a fixing block arranged at one end of each hot-pressing gland, and a screw rod nut penetrating through the fixing block and in a threaded connection with the regulating block. The section of the bottom surface of each cutter body is in an arc shape along the extending direction of the cutter groove, the section of the top surface of each regulating block is in an arc shape along the extending direction of the cutter groove, the top surface of the regulating block abuts against the bottom surface of the cutter body, and the bottom surface of the regulating bock is in a surface contact with the bottom of the cutter groove. The invention further provides a heat-sealing packaging device provided with the transverse sealing cutting unit. The regulating mechanisms are small in abrasion and long in service life, the volume of the pruning shear is not occupied, and the cost can be reduced.
Description
Technical field
The present invention relates to a kind of packaging facilities, particularly a kind of heat sealed package equipment that the hot melt principle seals packaging material and horizontal sealing cutoff device on this equipment of utilizing.
Background technology
The packing of a lot of daily life necessitys or the consumables, for example the packing of hygenic towelette all is automatically to be machined by packaging facilities.Adopting the form of heat-sealing sealing is a kind of usual way of present packing business, namely packing (for example film) is heated, and bonds them together thereby make the privileged site of packing be in molten condition, to finish the sealing of packing.
Generally speaking, after packing enter packaging facilities, first by the sealing (longitudinal sealing) in the realization vertically of longitudinal sealing device, then pass through horizontal sealing cutoff device, realize sealing (horizontal sealing) transversely, packing are cut off simultaneously, thereby a packaging unit is finished in preparation.Traditional horizontal sealing cutoff device only comprises a horizontal sealing thermal head, and this horizontal sealing thermal head operating packing of contact intermittently are with the packaging unit cut-out of former and later two connections.This kind horizontal sealing cutoff device is called as reciprocating type horizontal sealing cutoff device.This kind horizontal sealing cutoff device running velocity is slow, yields poorly, and can not satisfy Production requirement.
Horizontal sealing cutoff device after the improvement comprise be installed on the framework and parallel two flower shears up and down, be installed in a plurality of horizontal sealing thermal heads on the flower shears, and be arranged on the cutting knife in each horizontal sealing thermal head.Flower shears rotates a circle, and can realize that a plurality of horizontal sealing thermal heads melt sealing to the heat of packing, greatly improves thus sealing efficient.This kind horizontal sealing cutoff device is called as rotary horizontal sealing cutoff device.The horizontal sealing cutoff device of most all is rotary.
Reciprocating type horizontal sealing cutoff device can adopt two feed screw nuts as the setting device of cutting knife, is used for adjusting the position of cutting knife, cuts off effect with the sealing that guarantees packing.And rotary horizontal sealing cutoff device is because the change of structure, and original adjusting device for cutter also need be replaced.Comparatively alternative commonly used namely is to utilize a rhizoid thick stick nut to cooperate inclined plane slide block and rolling body that the position of cutting knife is adjusted.Because rolling body and cutting knife, inclined plane slide block all are and contact, this kind regulative mode is so that the easily wearing and tearing such as cutting knife, rolling body cause regulating effect to reach, and packing reports loss rate high, and then affects output.Simultaneously because after the cutting blade abrasion, whole horizontal sealing thermal head all needs to change, and causes equipment replacement high in cost of production problem.In addition, because feed screw nut and inclined plane slide block all are arranged in the flower shears body, occupy the space of flower shears body.When horizontal sealing thermal head quantity when being a plurality of (such as 5,6 etc.), can only be with the way of the volume that enlarges flower shears, so that the space of accommodating feed screw nut etc. to be provided, guarantee thus the stability of equipment, but also increased corresponding cost simultaneously.
Summary of the invention
In view of this, be necessary to provide a kind of longer service life, adjusting is more stable, cost is lower horizontal sealing cutoff device and have the heat sealed package equipment of this horizontal sealing cutoff device.
A kind of horizontal sealing cutoff device comprises flower shears, is evenly distributed on the some hot pressing end sockets, the correspondence that make progress in flower shears week and is arranged on cutting knife on each hot pressing end socket, and is arranged on a pair of adjusting mechanism on each hot pressing end socket.Be provided with the cutter groove in each hot pressing end socket, each cutting knife comprises and is fixed on the cutter hub in the cutter groove and is exposed to the outer knife edge of cutter groove.Each adjusting mechanism comprises the regulating block that is arranged in the corresponding cutter groove, be arranged on the fixed block of an end of a corresponding hot pressing end socket, and the feed screw nut that passes this fixed block and be spirally connected with regulating block, this fixed block is used for fixedly feed screw nut and regulating block, the bottom surface of this cutter hub is curved along the cross section of the bearing of trend of cutter groove, the end face of this regulating block is curved along the cross section of the bearing of trend of cutter groove, the end face of this regulating block is supported the bottom surface of cutter hub, the bottom surface of this regulating block is face with the bottom of cutter groove and contacts, can change the position of regulating block in the cutter groove by rotating this feed screw nut, thereby adjust the position of cutting knife in the cutter groove.
A kind of heat sealed package equipment has above-mentioned horizontal sealing cutoff device.
The adjusting mechanism that heat sealed package equipment of the present invention and horizontal sealing cutoff device thereof provide is because regulating block is that face contacts with the cutter trench bottom, regulating block is that face contacts with cutting knife, also can regard to a certain extent the line contact as, point in traditional adjusting mechanism contacts, the isostructural area of thrust surface of regulating block and cutting knife increase, wearing and tearing each other are less, thereby can guarantee that the life-span of adjusting mechanism is longer, and the effect of adjusting mechanism is good, good stability.On the other hand, this adjusting mechanism can utilize the space of cutter groove, all be arranged in the hot pressing end socket, do not take the volume of flower shears fully, even therefore flower shears is provided with a plurality of hot pressing end sockets, these adjusting mechanisms can not have special demands to the space of flower shears yet, need not to increase the volume of flower shears, thereby can reduce the volume of whole device, save manufacturing cost.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
Description of drawings
Fig. 1 is that the master of subelement of the horizontal sealing cutoff device of one embodiment of the invention looks schematic diagram.
Fig. 2 is that horizontal sealing cutoff device among Fig. 1 is along the part cross-sectional schematic of flower shears axial direction.
Fig. 3 is that schematic diagram is looked on the left side of Fig. 2.
Fig. 4 is that the horizontal sealing cutoff device of another embodiment is along the part cross-sectional schematic of flower shears axial direction.
Fig. 5 is the structural representation of the interior cutting knife of the horizontal sealing cutoff device among Fig. 2.
Fig. 6 is the structural representation of the interior regulating block of the horizontal sealing cutoff device among Fig. 2.
The main element nomenclature
| The |
10 |
| |
12 |
| The hot |
20 |
| The |
200 |
| The embossing |
21 |
| Setting |
22 |
| Packing | 30 |
| |
40 |
| |
41 |
| The |
410 |
| The |
42 |
| |
50 |
| Regulating |
51 |
| End face | 511 |
| The bottom surface | 513 |
| Fixed |
52 |
| |
520 |
| |
53 |
The following specific embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
Please refer to Fig. 1, the horizontal sealing cutoff device of one embodiment of the invention comprises the horizontal sealing axle 10 of paired setting, is arranged on the flower shears 12 on the horizontal sealing axle 10, and is evenly distributed on the some hot pressing end sockets 20 that make progress in 12 weeks of flower shears.Between the horizontal sealing axle 10 of packing 30 through two rotations, advance along the direction of arrow in the figure and finish the operation of hot-press sealed and cut-out through the sealing surface between corresponding two hot pressing end sockets 20.Owing to hot pressing end socket 20 structures on two horizontal sealing axles 10, flower shears 12 and the flower shears 12 are identical respectively, the below will only describe the structure of the hot pressing end socket 20 on one of them flower shears 12.
This horizontal sealing cutoff device is applied in the heat sealed package equipment, to packing 30, seals and cuts off such as packing film etc.This heat sealed package equipment also comprises feeding device, material arranging apparatus, film feeder, the structures such as longitudinal sealing device.These structures can be with reference to design identical in the prior art, and this paper no longer illustrates dependency structure, does not also make respective description.This heat sealed package equipment can be used to pack the current consumption product such as paper handkerchief, biscuit, candy.
Form two hot pressing end sockets 20 on the flower shears 12 shown in Figure 1, be appreciated that it to be a plurality of in other embodiments, such as three, four etc.Generally speaking, has the efficient that more hot pressing end socket 20 can improve packing 30 across seals.
Please also refer to Fig. 2 and Fig. 3, this horizontal sealing cutoff device also comprises cutting knife 40 and the adjusting mechanism 50 with each hot pressing end socket 20 combination.
Each hot pressing end socket 20 can by be spirally connected, the known mode such as welding is fixed on the flower shears 12.Hot pressing end socket 20 extends along the axial direction of flower shears 12.The axial direction of flower shears 12 is vertical with the service direction of packing 30.The length of hot pressing end socket 20 can be identical with the length of flower shears 12.Be provided with cutter groove 200 in the hot pressing end socket 20.Cutter groove 200 extends along the axial direction of flower shears 12.Among the embodiment shown in Figure 2, the two ends of cutter groove 200 penetration heat press seal heads 20.In certain embodiments, for example shown in Figure 4, this cutter groove 200 also can only be arranged on the middle part along the axial direction of flower shears 12 of hot pressing end socket 20, and the two ends of penetration heat press seal head 20 not.
Some embossing teeth 21 are set on the top surface of hot pressing end socket 20.Embossing tooth 21 extends along the bearing of trend (also being on the axial direction of flower shears 12) of cutter groove 200.The embossing tooth 21 of the hot pressing end socket 20 on these embossing teeth 21 and another flower shears 12 intermeshes, and to through packing 30 pressurized, heated between two hot pressing end sockets 20, makes packing 30 partial meltings, thereby finishes the hot-seal to packing 30.
Please also refer to Fig. 5, the bottom surface 410 of this cutter hub 41 is curved along the cross section of the bearing of trend of cutter groove 200.The bottom surface 410 of cutter hub 41 is towards the direction indent of the knife edge 42.In certain embodiments, the also direction evagination of the knife edge 42 dorsad of the bottom surface 410 of cutter hub 41.
The knife edge 42 is strip linearly, also can form as required the have decorative pattern edge of a knife of (for example zig-zag), so that packing 30 are more attractive in appearance when being cut off.
According to the performance of different packing 30 and the real needs of packing, need to adjust the position of cutting knife 40, make the knife edge 42 expose different height.Also need to adjust the integral level degree of cutting knife 40 in some situation.The present invention arranges a pair of adjusting mechanism 50 at each hot pressing end socket 20, to realize the position adjustment to cutting knife 40.
As shown in Figures 2 and 3, each adjusting mechanism 50 comprises the regulating block 51 that is arranged in the corresponding cutter groove 200, is arranged on the fixed block 52 of an end of a corresponding hot pressing end socket 20, and the feed screw nut 53 that passes this fixed block 52 and be spirally connected with regulating block 51.
It is worthy of note, when cutter groove 200 only runs through part hot pressing end socket 20 and not during the two ends of penetration heat press seal head 20 at its bearing of trend, as shown in Figure 4, after described feed screw nut 53 passes fixed block 52, pass again a corresponding end of hot pressing end socket 20 and arrive in the cutter groove 200 and be connected with regulating block 51.
This fixed block 52 is used for fixedly feed screw nut 53 and regulating block 51.Particularly, fixed block 52 can be fixed on the hot pressing end socket 20 by screw 520, thereby feed screw nut 53 and regulating block 51 relatively hot press seal heads 20 is fixing.Fixed block 52 is along cutter groove 200 and is symmetrical arranged.Fixed block 52 can be block structure, but is not limited to this structure, can realize that any structure of fixing function all can.In addition, among the embodiment as shown in Figure 4, cutter groove 200 is at its bearing of trend not during the two ends of penetration heat press seal head 20, fixed block 52 also can omit, the role who makes the corresponding end of hot pressing end socket 20 take on fixed block, form tapped bore at this corresponding end, directly feed screw nut 53 is fixed on this hot pressing end socket 20 by this corresponding end of hot pressing end socket 20.
This regulating block 51 is supported the bottom surface 410 of the cutter hub 41 of cutting knife 40.Please also refer to Fig. 6, the end face 511 of this regulating block 51 is curved along the cross section of the bearing of trend of cutter groove 200.The end face 511 of this regulating block 51 is supported the bottom surface 410 of cutter hub 41.When the end face 511 of these regulating block 51 arcs is supported cutting knife 40, can effectively reduce friction, make things convenient for the adjustment of cutting knife 40 positions.In order to reduce the resistance of regulating block 51 when cutting knife 40 moves, the degree of crook of the end face 511 of this regulating block 51 can be arranged to bottom surface 410 degree of crook greater than cutter hub 41.The bottom surface 513 of this regulating block 51 is face with the bottom of cutter groove 200 and contacts.Can change the position of regulating block 51 in cutter groove 200 by rotating this feed screw nut 53, thereby adjust the position of cutting knife 40 in cutter groove 200.
It is to be noted; the structure of regulating block 51 is not defined as structure cited among Fig. 6; as long as can reach that regulating block 51 contacts for face with cutting knife 40 or line contact, regulating block 51 are cutter groove 200 bottoms with flower shears 12 or hot pressing end socket 20() structure that contacts for face all can be applicable among the present invention, all in protection scope of the present invention.
Fixed block 52 in a pair of adjusting mechanism 50 on this hot pressing end socket 20 and feed screw nut 53 are preferably and are symmetrical arranged, namely the fixed block 52 of two adjusting mechanisms 50 is in the same position at hot pressing end socket 20 two ends, and two feed screw nuts 53 also are located in the same position in fixed block 52 and the regulating block 51.For avoiding two feed screw nuts 53 to interfere with each other in cutter groove 200, feed screw nut 53 is contained in the length of the part in the cutter groove 200 should be less than 1/2nd of cutter groove 200 development lengths in this kind situation.
As shown in Figure 5, the cambered top end of the bottom surface 410 of cutting knife 40 also is the action H of the bottom surface 410 of cutting knife 40 apart from the height difference H of arc bottom, and it is fixed to come according to the length L of cutting knife 40, the ratio range of the length L of action H and cutting knife 40 is 0.03-0.25, is preferably 0.07-0.15.
When this horizontal sealing cutoff device work, this fixed block 52 is used for fixedly feed screw nut 53 and regulating block 51, also just plays the effect of fixed cutting tool 40 simultaneously, and with under the combined action of the setting nut 22 on the hot pressing end socket 20, cutting knife 40 is fixed in the cutter groove 200.
When needs are adjusted the position of cutting knife 40, can suitably unclamp first setting nut 22 and fixed block 52, and then by rotating threaded shaft nut 53, driving regulating block 51 in the 200 interior slips of cutter groove, thereby change the position of cutting knife 40 in cutter groove 200.For example, cutting knife 40 need to be adjusted upward the knife edge 42 is exposed when more outside hot pressing end socket 20, rotatable feed screw nut 53 drives regulating block 51 and slides to the two ends (the also two ends of instant heating press seal head 20) of cutter groove 200, thereby make regulating block 51 support the bottom surface 410 of cutting knife 40, so that cutting knife 40 moves up.On the contrary, need to cutting knife 40 downward adjustment rotating threaded shaft nut 53 in opposite direction then, make cutting knife 40 rely on Gravitational slidings.After cutting knife 40 arrives predetermined adjustment positions, again with fixed block 52 and setting nut 22 lockings, with fixed cutting tool 40 in cutter groove 200.
Aforesaid operations is the bottom surface 410 of casehistory cutting knife 40 forms cambered surface towards the knife edge 42 indents situation, and when the knife edge 42 evaginations formed cambered surface dorsad in the bottom surface 410 of cutting knife 40, corresponding operating should be opposite.
Because regulating block 51 is that face contacts with cutter groove 200 bottoms, regulating block 51 contacts for face with cutting knife 40, also can regard to a certain extent line contact (when for example end face 511 degree of crook of regulating block 51 are very large) as, some contact compared to traditional adjusting mechanism, regulating block 51 increases with cutting knife 40 isostructural area of thrust surface, wearing and tearing each other are less, thereby can guarantee that the life-span of adjusting mechanism 50 is longer, and the effect of adjusting mechanism 50 is good, good stability.On the other hand, this adjusting mechanism 50 can utilize the space of cutter groove 200, all be arranged in the hot pressing end socket 20, do not take the volume of flower shears 12 fully, even therefore flower shears 12 is provided with a plurality of hot pressing end sockets 20, these adjusting mechanisms 50 can not have special demands to the space of flower shears 12 yet, need not to increase the volume of flower shears 12, thereby can reduce the volume of whole device, save manufacturing cost.
Claims (10)
1. horizontal sealing cutoff device, comprise flower shears, be evenly distributed on the some hot pressing end sockets that make progress in flower shears week, and the corresponding cutting knife that is arranged on each hot pressing end socket, be provided with the cutter groove in each hot pressing end socket, each cutting knife comprises and is fixed on the cutter hub in the cutter groove and is exposed to the outer knife edge of cutter groove, it is characterized in that: also comprise a pair of adjusting mechanism that is arranged on each hot pressing end socket, each adjusting mechanism comprises the regulating block that is arranged in the corresponding cutter groove, be arranged on the fixed block of an end of a corresponding hot pressing end socket, and the feed screw nut that passes this fixed block and be spirally connected with regulating block, this fixed block is used for fixedly feed screw nut and regulating block, the bottom surface of this cutter hub is curved along the cross section of the bearing of trend of cutter groove, the end face of this regulating block is curved along the cross section of the bearing of trend of cutter groove, the end face of this regulating block is supported the bottom surface of cutter hub, the bottom surface of this regulating block is face with the bottom of cutter groove and contacts, can change the position of regulating block in the cutter groove by rotating this feed screw nut, thereby adjust the position of cutting knife in the cutter groove.
2. horizontal sealing cutoff device as claimed in claim 1, it is characterized in that: the end face degree of crook of this regulating block is greater than the bottom surface degree of crook of cutter hub.
3. horizontal sealing cutoff device as claimed in claim 1, it is characterized in that: described fixed block is screwed on the hot pressing end socket, and fixed block is along the cutter groove and is symmetrical arranged.
4. horizontal sealing cutoff device as claimed in claim 1, it is characterized in that: described cutter groove is the two ends of penetration heat press seal head not, after described feed screw nut passes fixed block, pass a corresponding end of hot pressing end socket again and arrive in the cutter groove and be connected with regulating block.
5. horizontal sealing cutoff device as claimed in claim 1, it is characterized in that: described cutter groove is the two ends of penetration heat press seal head not, described feed screw nut passes a corresponding end of hot pressing end socket and arrives in the cutter groove and is connected with regulating block, and the corresponding end of this of described hot pressing end socket is fixed on feed screw nut on the hot pressing end socket as fixed block.
6. horizontal sealing cutoff device as claimed in claim 1 is characterized in that: described feed screw nut is contained in the length of the part in the cutter groove less than 1/2nd of cutter groove development length.
7. horizontal sealing cutoff device as claimed in claim 1, it is characterized in that: the ratio range of the action of the bottom surface of described cutting knife and the length of cutting knife is 0.03-0.25.
8. horizontal sealing cutoff device as claimed in claim 7, it is characterized in that: the ratio range of the action of the bottom surface of described cutting knife and the length of cutting knife is 0.07-0.15.
9. horizontal sealing cutoff device as claimed in claim 1 is characterized in that: the bottom surface of cutter hub is towards the direction indent of the knife edge, perhaps the bottom surface of the cutter hub direction evagination of the knife edge dorsad.
10. a heat sealed package equipment is characterized in that comprising such as the described horizontal sealing cutoff device of any one in the claim 1-9 item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210385723.9A CN102862709B (en) | 2012-10-12 | 2012-10-12 | Heat-sealing packaging device and transverse sealing cutting unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210385723.9A CN102862709B (en) | 2012-10-12 | 2012-10-12 | Heat-sealing packaging device and transverse sealing cutting unit thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102862709A true CN102862709A (en) | 2013-01-09 |
| CN102862709B CN102862709B (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210385723.9A Active CN102862709B (en) | 2012-10-12 | 2012-10-12 | Heat-sealing packaging device and transverse sealing cutting unit thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287635A (en) * | 2013-05-28 | 2013-09-11 | 上海瑞吉锦泓包装机械有限公司 | Continuous vertical packing machine |
| CN105035431A (en) * | 2015-07-04 | 2015-11-11 | 佛山市一领智能机械设备有限公司 | Sealing cutter of transverse sealing mechanism of horizontal packaging machine |
| CN108016085A (en) * | 2017-12-29 | 2018-05-11 | 山东新华医疗器械股份有限公司 | A kind of blood bag Bag Making Machine and its half cutting apparatus |
| CN109226037A (en) * | 2018-10-30 | 2019-01-18 | 张习先 | A kind of producing equipment of dried wolfberry |
| CN109398826A (en) * | 2018-11-30 | 2019-03-01 | 三明市普诺维机械有限公司 | A kind of sealing composite roll |
| CN113211868A (en) * | 2021-05-11 | 2021-08-06 | 浙江九腾包装材料有限公司 | Rolling packaging machine is used in production of thermal contraction membrane |
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| JPH07315341A (en) * | 1994-05-23 | 1995-12-05 | Chuo Housouki Kk | Sealing device for filling/packaging machine |
| JP2007062806A (en) * | 2005-08-31 | 2007-03-15 | Ishida Co Ltd | A pair of seal devices, longitudinal bag-making packaging machine, and weighing and packaging system |
| JP4405840B2 (en) * | 2004-03-29 | 2010-01-27 | 大森機械工業株式会社 | End seal device |
| CN102602565A (en) * | 2012-04-06 | 2012-07-25 | 金红叶纸业集团有限公司 | Heat-seal packaging equipment and cross-seal cutting device thereof |
| CN202828203U (en) * | 2012-10-12 | 2013-03-27 | 金红叶纸业集团有限公司 | Heat-sealing packaging device and horizontal seal disconnecting device thereof |
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| JPH07315341A (en) * | 1994-05-23 | 1995-12-05 | Chuo Housouki Kk | Sealing device for filling/packaging machine |
| JP4405840B2 (en) * | 2004-03-29 | 2010-01-27 | 大森機械工業株式会社 | End seal device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287635A (en) * | 2013-05-28 | 2013-09-11 | 上海瑞吉锦泓包装机械有限公司 | Continuous vertical packing machine |
| CN105035431A (en) * | 2015-07-04 | 2015-11-11 | 佛山市一领智能机械设备有限公司 | Sealing cutter of transverse sealing mechanism of horizontal packaging machine |
| CN108016085A (en) * | 2017-12-29 | 2018-05-11 | 山东新华医疗器械股份有限公司 | A kind of blood bag Bag Making Machine and its half cutting apparatus |
| CN109226037A (en) * | 2018-10-30 | 2019-01-18 | 张习先 | A kind of producing equipment of dried wolfberry |
| CN109398826A (en) * | 2018-11-30 | 2019-03-01 | 三明市普诺维机械有限公司 | A kind of sealing composite roll |
| CN113211868A (en) * | 2021-05-11 | 2021-08-06 | 浙江九腾包装材料有限公司 | Rolling packaging machine is used in production of thermal contraction membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102862709B (en) | 2014-06-18 |
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