CN112220137A - High-strength food-grade PVC (polyvinyl chloride) glove and detection equipment thereof - Google Patents

High-strength food-grade PVC (polyvinyl chloride) glove and detection equipment thereof Download PDF

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Publication number
CN112220137A
CN112220137A CN202011320487.3A CN202011320487A CN112220137A CN 112220137 A CN112220137 A CN 112220137A CN 202011320487 A CN202011320487 A CN 202011320487A CN 112220137 A CN112220137 A CN 112220137A
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CN
China
Prior art keywords
fixed
ring
gloves
glove
air outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011320487.3A
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Chinese (zh)
Inventor
沈福清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changshu Fengshen Textile Co ltd
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Changshu Fengshen Textile Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changshu Fengshen Textile Co ltd filed Critical Changshu Fengshen Textile Co ltd
Priority to CN202011320487.3A priority Critical patent/CN112220137A/en
Publication of CN112220137A publication Critical patent/CN112220137A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00Gloves
    • A41D19/0055Plastic or rubber gloves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/027Details with respect to the testing of elastic elements, e.g. gloves, condoms
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/06Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2400/00Functions or special features of garments
    • A41D2400/44Donning facilities

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Gloves (AREA)

Abstract

The invention relates to the technical field of PVC (polyvinyl chloride) glove production, in particular to a high-strength food-grade PVC glove and detection equipment thereof, aiming at solving the problem that PVC gloves in the prior art are inconvenient to wear for people with large palms, the invention provides a scheme which comprises the gloves and a connecting sleeve, wherein a first elastic ring is fixed at one end of the connecting sleeve, the first elastic ring is fixedly connected with the edge of an inlet of each glove, a buffer groove is formed in the edge of the other end of the connecting sleeve, and a second elastic ring is fixed at one side of the connecting sleeve, which is provided with the buffer groove. The air outlet pipe sealing device is reasonable in structure and simple to operate, the gloves can be conveniently worn by people with large palms, and the gloves are conveniently fixed on the air outlet pipe when the sealing performance of the gloves is detected, so that the operation of operators is facilitated, and the detection efficiency is improved.

Description

High-strength food-grade PVC (polyvinyl chloride) glove and detection equipment thereof
Technical Field
The invention relates to the field of PVC glove production, in particular to a high-strength food-grade PVC glove and detection equipment thereof.
Background
The PVC gloves are made of polyvinyl chloride by a special process. The gloves are free of allergens, free of powder, low in dust generation amount, low in ion content, free of components such as plasticizers, esters and silicone oil, high in chemical resistance, good in flexibility and touch feeling, convenient and comfortable to wear, and capable of being used in a dust-free environment, and the high-strength PVC gloves are formed by strengthening the strength of the PVC gloves on common PVC gloves, so that the PVC gloves are high in tensile strength.
But PVC gloves among the prior art have a shortcoming, and the opening size that is wrist department is all unified for the great personnel of palm are more arduous when wearing gloves, and in addition, PVC gloves need detect the gas tightness after producing, avoid gloves damaged, for this reason, this scheme has proposed a high strength food level PVC gloves and check out test set.
Disclosure of Invention
The invention provides a high-strength food-grade PVC glove and detection equipment thereof, which solve the problem that the PVC glove in the prior art is inconvenient to wear for people with large palms.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high strength food level PVC gloves and check out test set thereof, includes gloves and adapter sleeve, and the one end of adapter sleeve is fixed with first elastic ring, and the marginal fixed connection of the entrance of first elastic ring and gloves, the dashpot has been seted up at the edge of the other end of adapter sleeve, one side that the dashpot was seted up to the adapter sleeve is fixed with the second elastic ring.
Preferably, the heads and the tails of the second elastic rings are not connected, and the heads and the tails of the second elastic rings are respectively fixed on two sides of the buffer slot.
Preferably, the surfaces of the five finger parts of the glove are provided with a plurality of anti-skid bulges.
A detection device for high-strength food-grade PVC gloves comprises a water pool, a mounting frame fixed at the top of the water pool, an electric telescopic rod arranged on the mounting frame, an air deflector rotationally arranged at the extending end of the electric telescopic rod, and a plurality of fixing devices arranged at the bottom surface of the air deflector, wherein a drain pipe is arranged at the bottom of one side of the water pool, the extending end of the electric telescopic rod faces downwards, an air blower is fixed on the mounting frame, the air deflector is of a hollow structure, a fixing pipe communicated with the inside of the air deflector is fixed at the top of the air deflector, an air outlet of the air blower is connected with the fixing pipe through a connecting pipe, the fixing devices comprise an air outlet pipe fixed at the bottom of the air deflector, a valve arranged on the air outlet pipe, a connecting ring movably sleeved outside the air outlet pipe, and a mounting frame fixed at the bottom of the connecting ring through a plurality, the one end of two screw thread posts all extends to the inboard of installing frame, and the one end that two screw thread posts are located the installing frame inside all rotates installs the clamp ring, and two clamp rings are for being located the both sides of tuber pipe respectively, and the other end of two screw thread posts all is fixed with the regulation pole, install the PLC controller on the mounting bracket.
Preferably, two clamp rings all are fixed with spacing post on keeping away from one side outer wall of air-out pipe, and the mounting frame threaded connection has all seted up spacing hole on the both sides inner wall of two screw thread posts, and the one end of two spacing posts extends to the inside in two spacing holes respectively and coincide with two spacing holes.
Preferably, the two clamping rings are both semicircular rings, and the inner ring of each clamping ring is matched with the outer ring of the air outlet pipe.
Preferably, the inner rings of the two clamping rings are fixed with soft pads.
Preferably, the air outlet pipe is provided with positioning holes on the outer walls of two opposite sides, the rubber balls are fixed on two opposite sides of the inner ring of the connecting ring, and one sides of the two rubber balls are clamped inside the two positioning holes respectively.
Preferably, the outer wall of the air outlet pipe is sleeved with a positioning ring, and the positioning ring is located below the positioning hole.
The invention has the beneficial effects that:
1. through the cooperation between adapter sleeve, second elastic ring and the cushion chamber, the opening with the adapter sleeve is conveniently opened when dressing gloves to make things convenient for the big crowd of palm to wear the gloves.
2. Through fixing device's setting, conveniently with gloves cover on the play tuber pipe when detecting gloves leakproofness, then two clamp plates of reuse press from both sides the tight outside at the play tuber pipe with gloves, avoid taking place to leak gas.
3. Through the cooperation between pond, mounting bracket, electric telescopic handle, aviation baffle, air-blower, connecting pipe and the fixing device, the submergence is under the surface of water in pond after conveniently aerifing gloves to detect gloves and whether appear damaged.
The air outlet pipe sealing device is reasonable in structure and simple to operate, the gloves can be conveniently worn by people with large palms, and the gloves are conveniently fixed on the air outlet pipe when the sealing performance of the gloves is detected, so that the operation of operators is facilitated, and the detection efficiency is improved.
Drawings
FIG. 1 is a front view of the palm of a glove of the present invention.
FIG. 2 is a front view of the back of the hand of the glove of the present invention.
FIG. 3 is a front cross-sectional view of the detection apparatus of the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Fig. 5 is a plan view of the mounting frame.
Reference numbers in the figures: 1 gloves, 2 adapter sleeves, 3 first elastic rings, 4 second elastic rings, 5 dashpots, 6 anti-skidding protrusions, 7 pools, 8 mounting racks, 9 PLC controllers, 10 connecting rings, 11 fixed pipes, 12 connecting pipes, 13 air blowers, 14 electric telescopic rods, 15 air deflectors, 16 drain pipes, 17 valves, 18 rubber balls, 19 positioning holes, 20 connecting rods, 21 air outlet pipes, 22 adjusting rods, 23 threaded columns, 24 clamping rings, 25 positioning rings, 26 mounting frames, 27 cushions, 28 limiting columns and 29 limiting holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a high-strength food-grade PVC glove and a detection device thereof, including a glove 1 and a connection sleeve 2, one end of the connection sleeve is fixed with a first elastic ring 3, and the first elastic ring 3 is fixedly connected with the edge of the entrance of the glove 1, the edge of the other end of the connection sleeve 2 is provided with a buffer slot 5, one side of the connection sleeve 2 provided with the buffer slot 5 is fixed with a second elastic ring 4, the head and the tail of the second elastic ring 4 are not connected, and the head and the tail of the second elastic ring 4 are respectively fixed on the two sides of the buffer slot 5, the buffer slot 5 is provided, so that a user can easily open the second elastic ring 4 when wearing the glove 1, and further, the user can conveniently stretch the hand into the glove 1, the first elastic ring 3 and the second elastic ring 4 are made of rubber, and have good elasticity, the first elastic ring 3 can be sleeved on the wrist of the user after the glove 1 is worn, to avoid the glove 1 from falling off the user's hand;
the surfaces of five finger parts of the glove 1 are provided with a plurality of anti-skid protrusions 6, and the anti-skid protrusions 6 enhance the anti-skid performance of the glove 1 and avoid skidding when grabbing objects;
a detection device for high-strength food-grade PVC gloves comprises a water tank 7, a mounting rack 8 fixed at the top of the water tank 7, an electric telescopic rod 14 installed on the mounting rack 8, an air deflector 15 rotatably installed at the extending end of the electric telescopic rod 14 and a plurality of fixing devices installed at the bottom surface of the air deflector 15, a drain pipe 16 is installed at the bottom of one side of the water tank 7, the extending end of the electric telescopic rod 14 faces downwards, an air blower 13 is fixed on the mounting rack 8, the air deflector 15 is of a hollow structure, a fixed pipe 11 communicated with the inside of the air deflector 15 is fixed at the top of the air deflector 15, an air outlet of the air blower 13 is connected with the fixed pipe 11 through a connecting pipe 12, the fixing devices comprise an air outlet pipe 21 fixed at the bottom of the air deflector 15, a valve 17 installed on the air outlet pipe 21, a connecting ring 10 movably sleeved outside the air outlet, the fixing device further comprises threaded columns 23 which are in threaded connection with the outer walls of two opposite sides of the mounting frame 26, one ends of the two threaded columns 23 extend to the inner side of the mounting frame 26, clamping rings 24 are rotatably mounted at the ends, located inside the mounting frame 26, of the two threaded columns 23, adjusting rods 22 are fixed at the other ends of the two threaded columns 23, a PLC 9 is mounted on the mounting frame 8, a switch of the air blower 13 and a switch of the electric telescopic rod 14 are arranged on the PLC 9, the work of the air blower 13 and the work of the electric telescopic rod 14 are controlled through the PLC 9, when the sealing performance of the glove 1 is detected, the glove 1 is sleeved outside the air outlet pipe 21, then the glove 1 is tightly pressed outside the air outlet pipe 21 through the fixing device, then the glove 1 is inflated to expand, and finally the glove is immersed in a water pool, oil stain bubbles are observed, so that the tightness of the glove 1 is judged, the water tank 7 can be made of transparent toughened glass or plastic in order to observe whether the glove 1 generates bubbles, and a certain chamfer angle can be arranged at the bottom of the air outlet pipe 21 in order to sleeve the glove 1 on the air outlet pipe 21;
the outer walls of the two clamping rings 24 far away from the air outlet pipe 21 are respectively fixed with a limiting column 28, the inner walls of the two sides of the mounting frame 26 in threaded connection with the two threaded columns 23 are respectively provided with a limiting hole 29, one end of each of the two limiting columns 28 respectively extends into the two limiting holes 29 to be matched with the two limiting holes 29, and the arrangement of the limiting columns 28 and the limiting holes 29 can prevent the clamping rings 24 from rotating along with the rotation of the threaded columns 23;
the two clamping rings 24 are semicircular rings, the inner rings of the clamping rings 24 are matched with the outer rings of the air outlet pipes 26, and the clamping rings 24 can completely wrap the parts, located outside the air outlet pipes 21, of the gloves 1 when the gloves 1 are clamped, so that air leakage at the connection parts of the gloves 1 and the air outlet pipes 21 is avoided;
the inner rings of the two clamping rings 24 are fixed with cushions 27, and the cushions 27 are arranged so that the clamping rings 24 can clamp the glove 1 more tightly;
the outer walls of two opposite sides of the air outlet pipe 21 are respectively provided with a positioning hole 19, two opposite sides of the inner ring of the connecting ring 10 are respectively fixed with a rubber ball 18, one side of each of the two rubber balls 18 is clamped inside the two positioning holes 19, the rubber balls 18 have good elasticity, and the matching between the rubber balls 18 and the positioning holes 19 facilitates the lifting and clamping of the connecting ring 10 when the glove 1 is sleeved on the air outlet pipe 21 or when the glove 1 is taken down from the air outlet pipe 21, so that the phenomenon that the operation that the glove 1 is sleeved on the air outlet pipe 21 or the glove 1 is taken down from the air outlet pipe 21 is influenced due to too low position of the mounting frame 26 is avoided;
the outer wall of the air outlet pipe 21 is sleeved with a positioning ring 25, the positioning ring 25 is positioned below the positioning hole 19, and the positioning ring 25 can limit the descending height of the connecting ring 10, so that the clamping ring 24 can clamp the glove 1 at an accurate position.
The working principle is as follows: the arrangement of the buffer slot 5 is convenient for a user to easily open the second elastic ring 4 when the user wears the glove 1, so that the user can conveniently stretch the hand into the glove 1;
when the sealing performance of the glove is detected, firstly, the glove 1 is sleeved outside the air outlet pipe 21, so that the bottom of the air outlet pipe 21 penetrates through the second elastic ring 3 to enter the temporal part of the glove 1, then, the connecting ring 10 moves downwards, when the connecting ring 10 is in contact with the positioning ring 25, the two adjusting rods 22 are simultaneously rotated clockwise, so that the two threaded columns 23 move towards the air outlet pipe 21, under the limitation of the limiting columns 28 and the limiting holes 29, the clamping ring 24 does not rotate along with the rotation of the threaded columns 23, but moves towards the air outlet pipe 21 until the two clamping rings 24 are clamped outside the air outlet pipe 21, so that the glove 1 is clamped on the air outlet pipe 21, then, the valve 17 can be opened, air in the air deflector 15 is injected into the glove 1 through the air outlet pipe 21, so that the glove 1 is swelled, when the glove 1 swells to a certain degree, the valve is closed again, then the PLC 9 starts the electric telescopic rod 14 to extend, so that the gloves are immersed under the water surface of the water pool 7, then whether bubbles appear on the surfaces of the gloves 1 is observed, if continuous bubbles appear, the gloves 1 are unqualified, and if no bubbles are generated, the gloves 1 are good in sealing performance and qualified, after the detection is finished, the electric telescopic rod 14 is started to shrink, and after the gloves 1 come out from the water surface, the gloves 1 are taken down from the air outlet pipe 21.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (9)

1. The utility model provides a high strength food level PVC gloves, includes gloves (1) and adapter sleeve (2), its characterized in that, the one end of adapter sleeve is fixed with first elastic ring (3), and the marginal fixed connection of the entrance of first elastic ring (3) and gloves (1), dashpot (5) have been seted up at the edge of the other end of adapter sleeve (2), one side that dashpot (5) were seted up in adapter sleeve (2) is fixed with second elastic ring (4).
2. A high strength food grade PVC glove according to claim 1, wherein the second elastic ring (4) is not connected end to end, and the end to end of the second elastic ring (4) is fixed on both sides of the buffer slot (5).
3. A high strength food grade PVC glove according to claim 1, wherein the surface of five finger parts of the glove (1) is provided with a plurality of anti-slip protrusions (6).
4. The utility model provides a check out test set of high strength food level PVC gloves, includes pond (7), fixes mounting bracket (8) at pond (7) top, installs electric telescopic handle (14) on mounting bracket (8), rotates aviation baffle (15) of installing at electric telescopic handle (14) extension end and installs a plurality of fixing device in aviation baffle (15) bottom surface, its characterized in that, drain pipe (16) are installed to one side bottom in pond (7), electric telescopic handle (14) extension end down is fixed with air-blower (13) on mounting bracket (8), aviation baffle (15) are hollow structure, and the top of aviation baffle (15) is fixed with fixed pipe (11) with aviation baffle (15) inside intercommunication, is connected through connecting pipe (12) between the air outlet of air-blower (13) and fixed pipe (11), fixing device is including fixing air-out tuber pipe (21) in aviation baffle (15) bottom, Install valve (17), the movable sleeve on air-out pipe (21) and establish go-between (10) outside air-out pipe (21) and fix installing frame (26) in go-between (10) bottom through a plurality of connecting rods (20), fixing device still includes threaded connection threaded post (23) on the relative both sides outer wall of installing frame (26), and the one end of two threaded post (23) all extends to the inboard of installing frame (26), and two threaded post (23) are located the inside one end of installing frame (26) and all rotate and install clamp ring (24), and two clamp ring (24) are the both sides that are located air-out pipe (21) respectively, and the other end of two threaded post (23) all is fixed with regulation pole (22), install PLC controller (9) on mounting bracket (8).
5. The detection equipment for the high-strength food-grade PVC gloves according to claim 4, wherein the outer walls of the two clamping rings (24) far away from the air outlet pipe (21) are respectively fixed with a limiting post (28), the inner walls of the two sides of the mounting frame (26) in threaded connection with the two threaded posts (23) are respectively provided with a limiting hole (29), and one end of each of the two limiting posts (28) extends into the two limiting holes (29) and is matched with the two limiting holes (29).
6. The detection equipment for the high-strength food-grade PVC gloves according to claim 4, wherein the two clamping rings (24) are both semicircular rings, and the inner ring of the clamping ring (24) is matched with the outer ring of the air outlet pipe (26).
7. Detection equipment of high strength food grade PVC gloves according to claim 4 characterized in that the inner ring of both clamp rings (24) is fixed with soft cushion (27).
8. The detection device for the high-strength food-grade PVC gloves according to claim 4, wherein the outer walls of two opposite sides of the air outlet pipe (21) are respectively provided with a positioning hole (19), two opposite sides of the inner ring of the connecting ring (10) are respectively fixed with a rubber ball (18), and one side of each of the two rubber balls (18) is respectively clamped inside the two positioning holes (19).
9. The detection equipment for the high-strength food-grade PVC gloves according to claim 4, wherein a positioning ring (25) is sleeved on the outer wall of the air outlet pipe (21), and the positioning ring (25) is located below the positioning hole (19).
CN202011320487.3A 2020-11-23 2020-11-23 High-strength food-grade PVC (polyvinyl chloride) glove and detection equipment thereof Pending CN112220137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011320487.3A CN112220137A (en) 2020-11-23 2020-11-23 High-strength food-grade PVC (polyvinyl chloride) glove and detection equipment thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011320487.3A CN112220137A (en) 2020-11-23 2020-11-23 High-strength food-grade PVC (polyvinyl chloride) glove and detection equipment thereof

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CN112220137A true CN112220137A (en) 2021-01-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857076A (en) * 2021-10-20 2021-12-31 会同县龙凤皮制品有限责任公司 Quality inspection equipment for rubber glove production
CN114248385A (en) * 2021-12-15 2022-03-29 张家港思淇科技有限公司 Production process of gum dipping gloves

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101762361A (en) * 2009-12-24 2010-06-30 欧阳梅生 Leakage detecting device of waterproof glove
CN205125165U (en) * 2015-10-27 2016-04-06 上海海太尔防护用品有限公司 Protection gloves
CN209284369U (en) * 2018-10-22 2019-08-23 江苏杰盛手套有限公司 High resiliency blue PVC glove
CN110954272A (en) * 2019-10-29 2020-04-03 陕西众策网络科技发展有限公司 Detection apparatus for protective gloves
CN210863053U (en) * 2019-11-01 2020-06-26 安徽科门生物科技有限公司 Stem cell culture experiment rubber glove detection device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101762361A (en) * 2009-12-24 2010-06-30 欧阳梅生 Leakage detecting device of waterproof glove
CN205125165U (en) * 2015-10-27 2016-04-06 上海海太尔防护用品有限公司 Protection gloves
CN209284369U (en) * 2018-10-22 2019-08-23 江苏杰盛手套有限公司 High resiliency blue PVC glove
CN110954272A (en) * 2019-10-29 2020-04-03 陕西众策网络科技发展有限公司 Detection apparatus for protective gloves
CN210863053U (en) * 2019-11-01 2020-06-26 安徽科门生物科技有限公司 Stem cell culture experiment rubber glove detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857076A (en) * 2021-10-20 2021-12-31 会同县龙凤皮制品有限责任公司 Quality inspection equipment for rubber glove production
CN114248385A (en) * 2021-12-15 2022-03-29 张家港思淇科技有限公司 Production process of gum dipping gloves

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Application publication date: 20210115