Anti-pollution microbial culture medium detection bag, winding equipment and working method

Abstract

The present application belongs to the technical field of conveying, and particularly relates to a pollution-preventing microbial culture medium detection bag, a winding device and a working method, which comprise the following steps: connecting the head end of a previous detection bag with the tail end of a next detection bag; setting an opening at the head end of the detection bag body, and setting a sealing strip at the head end, and setting a pair of sticking positions on the sealing strip, and a gap existing between the two sticking positions; sticking the two sticking positions on the outer wall of the detection bag body to cover the opening of the detection bag body by the sealing strip; setting a connecting strip at the tail end of the detection bag body, connecting the connecting strip with the sealing strip of the next detection bag, and setting a tearing line between the connecting strip and the sealing strip; when the two detection bags are separated, the connecting strip is separated from the sealing strip, the sticking positions are separated from the outer wall of the corresponding detection bag body, and the opening of the detection bag body is opened, so that when the detection bag is taken down, the sealing strip of the next detection bag is separated from the corresponding detection bag body to open the opening of the next detection bag body.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of conveying, and particularly relates to a container for storing or transporting articles or materials, and more particularly to an anti-pollution microbial culture medium detection bag, a winding device and a working method. BACKGROUND

[0002] In the field of detection bag production and manufacturing, the automatic winding and unwinding operation of the detection bag is a key link affecting the product quality and production efficiency. When the detection bag is wound into a roll, the opening of the detection bag is tightly closed and adhered due to the pressure between the layers during winding. When the detection bag is used, the operator needs to manually untangle it, which may cause accidental contact of the fingers with the internal product, resulting in pollution.

[0003] Therefore, due to the technical problem that the opening of the detection bag is tightly closed and adhered due to the pressure between the layers during winding, and accidental contact of the fingers with the internal product may cause pollution when the detection bag is untangled manually, an anti-pollution microbial culture medium detection bag, a winding device and a working method need to be designed.

[0004] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, the above description is not considered to constitute prior art information. SUMMARY

[0005] The present application at least provides an anti-pollution microbial culture medium detection bag, a winding device and a working method.

[0006] In a first aspect, the present application provides an anti-pollution microbial culture medium detection bag, comprising:

[0007] a detection bag body;

[0008] a first end opening of the detection bag body is provided, and a seal is provided at the first end, a pair of adhesive positions are provided on the seal, and a gap exists between the two adhesive positions;

[0009] the two adhesive positions are adhered to the outer wall of the detection bag body, so as to cover the opening of the detection bag body by the seal;

[0010] a connecting strip is provided at the tail end of the detection bag body, the connecting strip is connected to the seal of the next detection bag, and a tear line is provided between the connecting strip and the seal;

[0011] when the two detection bag bodies are separated, the connecting strip and the seal are separated, the adhesive position and the outer wall of the corresponding detection bag body are separated, and the opening of the detection bag body is opened.

[0012] In a second aspect, the present disclosure further provides a winding device for winding the anti-pollution microbial culture medium detection bag, comprising:

[0013] a winding device adapted to wind the strip-shaped detection bag set;

[0014] The detection bag set comprises a plurality of detection bags, wherein the head end of a previous detection bag is connected to the tail end of a next detection bag;

[0015] The winding device is arranged on a support plate, and an unfolding device is further arranged on the support plate, and each detection bag in the detection bag set passes through the unfolding device one by one before being wound by the winding device;

[0016] The unfolding device is adapted to unfold the wrinkles formed on the detection bag under pressure, and the detection bag passing through the unfolding device is wound by the winding device.

[0017] In an optional embodiment, the unfolding device comprises a fixed roller fixedly arranged on the support plate;

[0018] A pair of limiting rings is slidably arranged on the top of the fixed roller, and the detection bag set passes between the two limiting rings;

[0019] A groove is formed on the top of the fixed roller, and a spring plunger is arranged in the groove;

[0020] An elastic layer is connected between the two limiting rings, covering the top of the fixed roller and covering the groove, and the top of the spring plunger is in contact with the bottom surface of the elastic layer, lifting the elastic layer to lift the detection bag passing through the elastic layer, so that the wrinkles formed on the detection bag under pressure are unfolded.

[0021] In an optional embodiment, a sliding groove is formed on the outer wall of the fixed roller along the axis direction of the fixed roller;

[0022] A protrusion is arranged on the inner wall of the limiting ring, and the protrusion is located in the sliding groove;

[0023] A screw is arranged on the limiting ring, and the screw passes through the protrusion, and after the limiting ring moves, the screw is tightly contacted with the sliding groove by rotating the screw to fix the limiting ring.

[0024] In an optional embodiment, a pair of pressing blocks is arranged above the fixed roller, and the pressing blocks are located between the pair of limiting rings;

[0025] The pressing blocks are arranged close to the corresponding limiting rings;

[0026] The pressing blocks are slidably arranged on a fixed block, and the fixed block is arranged on the support plate;

[0027] The pressing blocks contact the detection bag;

[0028] The elastic layer top-up portion is located between two fixed blocks.

[0029] In an alternative embodiment, the winding device comprises a winding roller rotatably connected to the support plate.

[0030] The support plate is provided with a driving motor connected to the winding roller, and the driving motor is adapted to drive the winding roller to rotate to wind the detection bag set.

[0031] In an alternative embodiment, the support plate is provided with an exhaust device, and the detection bag set is sequentially passed through the exhaust device and the supporting device and then wound by the winding device.

[0032] The exhaust device comprises a pair of exhaust rollers.

[0033] The exhaust rollers are arranged on the support plate, and a gap is left between the two exhaust rollers, and the detection bag set passes between the two exhaust rollers.

[0034] When the detection bag body approaches the exhaust rollers, the leading end of the detection bag body is farther away from the exhaust rollers than the trailing end, and the two exhaust rollers contact the top surface and the bottom surface of the detection bag body to exhaust the air in the detection bag body from the gap between the two adhesive positions.

[0035] In an alternative embodiment, the support plate is provided with a winding-off device, and the winding-off device is adapted to wind off the detection bag set.

[0036] The winding-off device comprises a winding-off roller.

[0037] The winding-off roller is rotatably arranged on the support plate.

[0038] In a second aspect, the embodiments of the present disclosure further provide a detection bag wound by the winding device for anti-pollution microbial culture medium detection bag, comprising:

[0039] A detection bag body.

[0040] The leading end of the detection bag body is open, and the leading end is provided with a seal, and the seal is provided with a pair of adhesive positions, and a gap exists between the two adhesive positions.

[0041] The two adhesive positions are adhered to the outer wall of the detection bag body to cover the opening of the detection bag body by the seal.

[0042] The trailing end of the detection bag body is provided with a connecting strip, the connecting strip is connected with the seal of the next detection bag, and a tearing line is arranged between the connecting strip and the seal.

[0043] In a third aspect, the embodiments of the present disclosure further provide a working method of the winding device, comprising:

[0044] The stretching device stretches the wrinkle formed on the detection bag under pressure, and the detection bag passing through the stretching device is wound by the winding device;

[0045] When the two detection bags are separated, the connecting strip is separated from the sealing strip, drives the adhesive position to separate from the outer wall of the corresponding detection bag body, and opens the opening of the detection bag body.

[0046] The beneficial effects of the present application are that the anti-pollution microbial culture medium detection bag comprises: a detection bag body; the first end of the detection bag body is open, and a sealing strip is arranged at the first end, a pair of adhesive positions are arranged on the sealing strip, and a gap exists between the two adhesive positions; the two adhesive positions are adhered to the outer wall of the detection bag body to cover the opening of the detection bag body by the sealing strip; a connecting strip is arranged at the tail end of the detection bag body, the connecting strip is connected with the sealing strip of the next detection bag, and a tearing line is arranged between the connecting strip and the sealing strip; when the two detection bag bodies are separated, the connecting strip is separated from the sealing strip, drives the adhesive position to separate from the outer wall of the corresponding detection bag body, and opens the opening of the detection bag body, thereby realizing that when the detection bag is taken down, the sealing strip of the next detection bag is separated from the corresponding detection bag body to pull the opening of the next detection bag body to open.

[0047] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and achieved by the structure particularly pointed out in the description and the accompanying drawings.

[0048] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0050] Figure 1 A structural schematic diagram of an anti-pollution microbial culture medium detection bag winding equipment provided by the embodiment of the present disclosure;

[0051] Figure 2 A structural schematic diagram of a detection bag group provided by the embodiment of the present disclosure;

[0052] Figure 3 A position schematic diagram of an adhesive position provided by the embodiment of the present disclosure;

[0053] Figure 4 A structure diagram of a limiting ring provided by the embodiment of the present disclosure is provided.

[0054] Figure 5 A structure diagram of a fixing roller of a fixing roller provided by the embodiment of the present disclosure is provided.

[0055] In the drawings:

[0056] 1 winding device, 11 winding roller, 12 driving motor;

[0057] 2 detection bag set, 21 detection bag, 211 detection bag body, 212 sealing strip, 213 connecting strip, 214 sticking position;

[0058] 3 stretching device, 31 fixing roller, 311 groove, 312 spring plunger, 313 sliding groove, 32 limiting ring, 321 elastic layer, 322 protruding block, 323 bolt, 33 pressing block, 34 fixing block;

[0059] 4 exhaust device, 41 exhaust roller;

[0060] 5 unwinding device, 51 unwinding roller;

[0061] 6 support plate. DETAILED DESCRIPTION

[0062] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0063] In this document, when it is mentioned that a first component is located on a second component, it can mean that the first component can be directly on the second component or indirectly on the second component with intervening components located therebetween.

[0064] As used herein, the phrases "in an embodiment", "according to an embodiment", "in some embodiments", and the like generally mean the fact that a particular feature, structure, or characteristic described after the phrase can be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example", "exemplary", and the like are used as an example, instance, or illustration. Any implementation, aspect, or design described as "example" or "exemplary" in this document is not necessarily interpreted as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example", "exemplary", and the like is intended to present the concept in a specific manner.

[0065] In the field of detection bag production and manufacturing, the automatic winding and unwinding operation of the detection bag is a key link affecting the product quality and production efficiency. When the detection bag is wound into a roll, the detection bag is tightly closed and adhered due to the pressure between the layers when it is wound into a roll. When the detection bag is used, the operator needs to manually untangle it, which may cause the fingers to accidentally contact the internal product and cause contamination.

[0066] The above-mentioned defects are the results of the inventors' practice and careful research, and therefore, the discovery process of the above-mentioned problems and the solutions proposed by the present disclosure to solve the above-mentioned problems should be the contributions of the inventors to the present disclosure.

[0067] It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0068] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.

[0069] As shown in Figure 2 and Figure 3 At least one disclosed embodiment provides a pollution-proof microbial culture medium detection bag, comprising: a detection bag body 211; the first end of the detection bag body 211 is open and provided with a seal 212, and a pair of adhesive positions 214 are provided on the seal 212, and a gap exists between the two adhesive positions 214; the two adhesive positions 214 are adhered to the outer wall of the detection bag body 211 to cover the opening of the detection bag body 211 by the seal 212; the tail end of the detection bag body 211 is provided with a connecting strip 213, the connecting strip 213 is connected with the seal 212 of the next detection bag 21, and a tear line is provided between the connecting strip 213 and the seal 212; when two detection bag bodies 211 need to be separated, i.e. two connected detection bags 21 are separated, the connecting strip 213 and the seal 212 are separated, the adhesive position 214 and the corresponding outer wall of the detection bag body 211 are separated, and the opening of the detection bag body 211 is opened, thereby realizing that when the detection bag 21 is taken out, the seal 212 of the next detection bag 21 and the corresponding detection bag body 211 are separated to pull the opening of the next detection bag body 211 to open.

[0070] As shown in Figure 1 , Figure 2 and Figure 3As shown, at least one disclosed embodiment provides a winding device for winding the above-mentioned pollution-preventing microbial culture medium detection bag, comprising: a winding device 1 adapted to wind the strip-shaped detection bag group 2; the detection bag group 2 comprises a plurality of detection bags 21, wherein the head end of a previous detection bag 21 is connected to the tail end of a next detection bag 21; the detection bag 21 comprises: a detection bag body 211; the head end of the detection bag body 211 is provided with an opening, and the head end is provided with a seal 212, the seal 212 is provided with a pair of adhesive positions 214, and a gap exists between the two adhesive positions 214; the two adhesive positions 214 are adhered to the outer wall of the detection bag body 211, so as to cover the opening of the detection bag body 211 by the seal 212; the tail end of the detection bag body 211 is provided with a connecting strip 213, the connecting strip 213 is connected to the seal 212 of the next detection bag 21, and a tear line is provided between the connecting strip 213 and the seal 212; when the two detection bags 21 are separated, the connecting strip 213 is separated from the seal 212, the adhesive position 214 is separated from the corresponding outer wall of the detection bag body 211, and the opening of the detection bag body 211 is opened, thereby realizing that when the detection bag 21 is taken down, the seal 212 of the next detection bag 21 is separated from the corresponding detection bag body 211, so as to pull the opening of the next detection bag body 211 to be opened.

[0071] In the present embodiment, when the wound detection bag group 2 needs to be used, the first detection bag 21 can be taken down and then not used, at this time the opening of the second detection bag body 211 has been opened after the first detection bag 21 is taken down, at this time the second detection bag 21 can be taken down and then used, since the opening has been opened, it is no longer necessary for the operator to manually rub the opening, avoiding the fingers from touching the inner wall of the detection bag body 211, avoiding the pollution of the product placed in the detection bag body 211 subsequently.

[0072] In the present embodiment, when the current detection bag body 211 and the next detection bag body 211 are pulled apart, the connecting strip 213 on the current detection bag body 211 will pull the seal 212 of the next detection bag 21, and the seal 212 and the next detection bag body 211 will be pulled apart from the adhered state, at this time the corresponding seal 212 will pull the outer wall of the next detection bag body 211, so that the next detection bag 21 is separated from the tightly adhered inner wall caused by the winding pressure, so that the next detection bag body 211 can not need to be rubbed to open the opening of the detection bag body 211 after being taken down.

[0073] As Figure 1As shown, in an optional embodiment, the winding device 1 is arranged on a support plate 6, and a stretching device 3 is also provided on the support plate 6. Each detection bag 21 in the detection bag group 2 passes through the stretching device 3 one by one before being rolled up by the winding device 1; the stretching device 3 is suitable for stretching the folds formed by pressure on the detection bag 21, and the detection bag 21 passing through the stretching device 3 is rolled up by the winding device 1.

[0074] In this embodiment, since the exhaust device 4 squeezes and discharges the air in the detection bag body 211, the air is discharged through the gap between the two adhesive positions 214. At this time, the squeezed and discharged air may cause an impact on the adhesive position 214, causing part of the adhesive position 214 to separate from the corresponding outer wall of the detection bag body 211. Then, when the detection bag body 211 passes through the two exhaust rollers 41, the separated adhesive position 214 is squeezed again and adhered to the outer wall of the detection bag body 211. At this time, the seal 212, which was originally at the position corresponding to the gap, may have wrinkles due to squeezing and adhesion.

[0075] like Figure 4 and Figure 5 As shown, in an optional embodiment, the stretching device 3 includes: a fixed roller 31 fixedly set on the support plate 6; a pair of limiting rings 32 are slidably set on the top of the fixed roller 31, and the detection bag group 2 passes between the two limiting rings 32; a groove 311 is opened on the top of the fixed roller 31, and a spring plunger 312 is set in the groove 311; an elastic layer 321 is connected between the two limiting rings 32, and the elastic layer 321 covers the top of the fixed roller 31 and covers the groove 311, and the top of the spring plunger 312 contacts the bottom surface of the elastic layer 321 to lift the elastic layer 321 to lift the detection bag 21 passing through the elastic layer 321, so that the folds formed by pressure on the detection bag 21 are stretched.

[0076] When the bag 211 is in the closed position, the spring 312 pushes the spring 312 upwards and pushes the spring 312 upwards, so that the bag 211 can move freely.

[0077] likeFigure 4 As shown, in an optional embodiment, a sliding groove 313 is provided on the outer wall of the fixed roller 31 along the axial direction of the fixed roller 31; a protrusion 322 is provided on the inner wall of the limiting ring 32, and the protrusion 322 is located in the sliding groove 313; a bolt 323 is provided on the limiting ring 32, and the bolt 323 passes through the protrusion 322. After the limiting ring 32 moves, the bolt 323 is rotated so that the bolt 323 is in close contact with the sliding groove 313 to fix the limiting ring 32.

[0078] In this embodiment, when the position of the limiting ring 32 needs to be adjusted, the bolt 323 is loosened.

[0079] like Figure 1 As shown, in an optional embodiment, a pair of pressing blocks 33 are provided above the fixed roller 31, and the pressing blocks 33 are located between a pair of limiting rings 32; the pressing blocks 33 are arranged close to the corresponding limiting rings 32; the pressing blocks 33 are slidingly arranged on the fixed blocks 34, and the fixed blocks 34 are arranged on the support plate 6; the pressing blocks 33 contact the detection bag 21; the raised part of the elastic layer 321 is located between the two fixed blocks 34.

[0080] In this embodiment, a movable groove for moving the pressing block 33 can be opened in the fixed block 34, and the pressing block 33 and the inner wall of the movable groove can be connected by a spring. When the adjustment of the limiting ring 32 is completed, the pressing block 33 is in contact with the corresponding limiting ring 32, and the spring corresponding to the pressing block 33 is in a stretched state. The limiting ring 32 presses against the pressing block 33 to maintain the position of the pressing block 33. When the limiting ring 32 is reset, the pressing block 33 can be reset by the spring.

[0081] In an optional embodiment, the winding device 1 includes: a winding roller 11 rotatably connected to the support plate 6; a drive motor 12 is provided on the support plate 6, and the drive motor 12 is connected to the winding roller 11, and the drive motor 12 is suitable for driving the winding roller 11 to rotate to wind up the detection bag group 2.

[0082] In an optional embodiment, an exhaust device 4 is provided on the support plate 6, and the detection bag group 2 passes through the exhaust device 4 and the spreading device 3 in sequence and is then rolled up by the rolling device 1; the exhaust device 4 includes: a pair of exhaust rollers 41; the exhaust rollers 41 are provided on the support plate 6, and a gap is left between the two exhaust rollers 41, and the detection bag group 2 passes between the two exhaust rollers 41; when the detection bag body 211 approaches the exhaust roller 41, the head end of the detection bag body 211 is farther away from the exhaust roller 41 than the tail end, and the two exhaust rollers 41 contact the top and bottom surfaces of the detection bag body 211 to discharge the air in the detection bag body 211 from the gap between the two adhesive positions 214.

[0083] In an alternative embodiment, the support plate 6 is provided with a unwinding device 5, which is suitable for unwinding the detection bag group 2; the unwinding device 5 comprises an unwinding roller 51, which is rotatably arranged on the support plate 6.

[0084] At least one other disclosed embodiment also provides a working method of the above-mentioned winding device, comprising: the stretching device 3 stretches the wrinkles formed on the detection bag 21 under pressure, and the detection bag 21 passing through the stretching device 3 is wound by the winding device 1; when two detection bags 21 are separated, the connecting strip 213 is separated from the sealing strip 212, drives the adhesive position 214 to separate from the outer wall of the corresponding detection bag body 211, and opens the opening of the detection bag body 211.

[0085] In summary, the anti-pollution microbial culture medium detection bag comprises: a detection bag body 211; the first end of the detection bag body 211 is open, and the first end is provided with a sealing strip 212, the sealing strip 212 is provided with a pair of adhesive positions 214, and a gap exists between the two adhesive positions 214; the two adhesive positions 214 are adhered to the outer wall of the detection bag body 211, so as to cover the opening of the detection bag body 211 by the sealing strip 212; the tail end of the detection bag body 211 is provided with a connecting strip 213, the connecting strip 213 is connected with the sealing strip 212 of the next detection bag 21, and a tearing line is arranged between the connecting strip 213 and the sealing strip 212; when two detection bags 21 are separated, the connecting strip 213 is separated from the sealing strip 212, drives the adhesive position 214 to separate from the outer wall of the corresponding detection bag body 211, and opens the opening of the detection bag body 211, thereby realizing that when the detection bag 21 is taken down, the sealing strip 212 of the next detection bag 21 is separated from the corresponding detection bag body 211, so as to pull the opening of the next detection bag body 211 to be opened.

[0086] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0087] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are intended to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, terms such as "first", "second" and other numerical terms are used herein and do not imply order or sequence unless expressly indicated herein. Therefore, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0088] Spatially relative terms, such as "inner", "outer", "below", "below", "lower", "above", "upper", and the like, can be used herein to facilitate the description of the relationship of one element or feature to another element or feature as illustrated in the drawings. In addition to the orientation depicted in the drawings, the spatially relative terms can be intended to cover different orientations of the device in use or operation. For example, if the device in the drawing is turned over, the element described as "below" or "under" the other element or feature will be oriented "above" the other element or feature. Therefore, the example term "below" can cover both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0089] In the above discussion, unless otherwise stated, the terms "about", "approximately", "substantially" and the like, when used in describing a numerical value, mean a variation of + / - 10% of the value.

[0090] With the above ideal embodiments according to the present application as the inspiration, through the above description, relevant personnel can certainly make various changes and modifications within the scope of not deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. A winding device for winding anti-contamination microbial culture medium detection bags, characterized in that: include: A winding device, which is suitable for winding the strip-shaped detection bag group; The detection bag set includes a plurality of detection bags, wherein the head end of the upper detection bag is connected to the tail end of the lower detection bag; The detection bag comprises: a detection bag body; The detection bag body is provided with an opening at the head end and a seal at the head end, wherein the seal is provided with a pair of adhesive positions, and a gap is provided between the two adhesive positions; The two adhesive portions are adhered to the outer wall of the detection bag body to cover the opening of the detection bag body through the seal; A connecting strip is provided at the tail end of the detection bag body, the connecting strip is connected to the seal of the next detection bag, and a tear line is provided between the connecting strip and the seal; When the two test bag bodies are separated, the connecting strip and the sealing strip are separated, driving the adhesive portion to separate from the outer wall of the corresponding test bag body and opening the test bag body; The winding device is arranged on a support plate, and a spreading device is also arranged on the support plate, and each test bag in the test bag group passes through the spreading device one by one before being wound up by the winding device; The stretching device is suitable for stretching out the wrinkles formed on the detection bag under pressure, and the detection bag passing through the stretching device is rolled up by the rolling device; The spreading device includes: a fixed roller fixedly arranged on the support plate; A pair of limiting rings are slidably provided on the top of the fixed roller, and the detection bag group passes between the two limiting rings; A groove is provided on the top of the fixed roller, and a spring plunger is provided in the groove; An elastic layer is connected between the two limiting rings. The elastic layer covers the top of the fixed roller and covers the groove. The top of the spring plunger contacts the bottom of the elastic layer, pushing up the elastic layer to lift the detection bag passing through the elastic layer, so that the folds formed by the pressure on the detection bag are stretched; A pair of pressing blocks are provided above the fixed roller, and the pressing blocks are located between a pair of limiting rings; The pressing block is arranged close to the corresponding limiting ring; The pressing block is slidably arranged on the fixing block, and the fixing block is arranged on the supporting plate; The pressing block contacts the detection bag; The raised portion of the elastic layer is located between the two fixing blocks.

2. The winding device according to claim 1, characterized in that: A sliding groove is provided on the outer wall of the fixed roller along the axis direction of the fixed roller; A protrusion is provided on the inner wall of the limiting ring, and the protrusion is located in the sliding groove; The limiting ring is provided with a bolt which passes through the protrusion. After the limiting ring moves, the bolt is rotated so as to make the bolt closely contact the slide groove, thereby fixing the limiting ring.

3. The winding device according to claim 1, characterized in that: The winding device includes: a winding roller rotatably connected to the support plate; A driving motor is provided on the support plate, and the driving motor is connected to the winding roller. The driving motor is suitable for driving the winding roller to rotate so as to wind up the detection bag group.

4. The winding device according to claim 3, characterized in that: The support plate is provided with an exhaust device, and the detection bag group passes through the exhaust device and the spreading device in sequence and is then rolled up by the rolling device; The exhaust device includes: a pair of exhaust rollers; The exhaust rollers are arranged on the support plate, with a gap between the two exhaust rollers, and the inspection bag group passes between the two exhaust rollers; When the detection bag body approaches the exhaust roller, the head end of the detection bag body is farther away from the exhaust roller than the tail end. The two exhaust rollers contact the top and bottom surfaces of the detection bag body to discharge the air in the detection bag body from the gap between the two adhesive positions.

5. The winding device according to claim 1, characterized in that: The support plate is provided with an unwinding device, which is suitable for unwinding the inspection bag group; The unwinding device comprises: an unwinding roller; The unwinding roller is rotatably arranged on the supporting plate.

6. A working method using the winding device according to claim 1, characterized in that: include: The stretching device stretches out the wrinkles formed on the test bag under pressure, and the test bag passing through the stretching device is rolled up by the rolling device; When the two detection bags are separated, the connecting strip is separated from the sealing strip, driving the adhesive portion to separate from the outer wall of the corresponding detection bag body, and opening the detection bag body.

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