Test specimens for initial tack testing of water-based adhesives for tobacco and preparation apparatus for initial tack testing of water-based adhesives for tobacco

Abstract

This invention provides a sample for testing the initial tack of water-based adhesive for tobacco products and a sample preparation device for testing the initial tack of water-based adhesive for tobacco products. The sample includes stacked tobacco paper, a first adhesive layer, an adhesive layer carrier, a second adhesive layer, and an easy-tear layer. The device includes a frame and a first feeding tray, a second feeding tray, several reversing rollers, a pair of pressing rollers, a clamping mechanism, a cutting mechanism, and a gripping mechanism, which are used to complete a series of actions including pasting tobacco paper and double-sided adhesive tape, cutting after pasting, transferring, and storing. This solution has the advantages of high automation and good sample consistency.

Description

Technical Field

[0001] This utility model relates to the field of tobacco testing technology, specifically to a sample for testing the initial tack of water-based adhesives for tobacco and a device for preparing such a sample. Background Technology

[0002] During the cigarette manufacturing process, the rolled cigarette paper needs to be glued together to form the cigarette product.

[0003] The adhesives used in the industry are water-based adhesives. Currently, there are relatively few relevant standards for water-based adhesives in the industry, and there is a lack of research on the relevant performance of water-based adhesives.

[0004] The considerations for water-based adhesives mainly come from the parameters provided by the purchaser and whether they can meet production needs through actual application. This level of research has inaccurate issues for performance analysis.

[0005] For water-based adhesives, the main parameter is the tack strength at a specific dispensing amount. This experimental design is relatively simple and can be achieved by directly detecting the adhesion force of the water-based adhesive. However, when conducting detailed research and systematically analyzing the performance using a large number of comparative experimental subjects, this relatively crude design concept may not meet the requirements.

[0006] For the reasons mentioned above, it is necessary to standardize the design of the test for water-based adhesives. Among them, how to prepare the carrier or sample for the initial tack test of water-based adhesives is a key issue.

[0007] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a highly automated sample preparation device for determining the initial tack of water-based adhesives for tobacco, which offers good sample consistency, as well as a convenient, easy-to-use, and mass-producible sample for determining the initial tack of water-based adhesives for tobacco.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a sample for measuring the initial tack of a water-based adhesive for tobacco, comprising tobacco paper, a first adhesive layer, an adhesive layer carrier, a second adhesive layer, and an easy-tear layer;

[0010] The cigarette paper, the first adhesive layer, the adhesive layer carrier, the second adhesive layer, and the easy-tear layer are stacked sequentially from top to bottom.

[0011] Based on the above, the first adhesive layer, the adhesive carrier, the second adhesive layer, and the easy-tear layer constitute a double-sided tape with one side exposed, and the adhesive strength of both sides of the double-sided tape is greater than the initial tack of the water-based adhesive.

[0012] A sample preparation device for testing the initial tack of a water-based adhesive for tobacco is used to prepare the sample for testing the initial tack of the water-based adhesive for tobacco. The device includes a frame and a first feeding tray, a second feeding tray, several reversing rollers, a pair of rolling rollers, a clamping mechanism, a cutting mechanism, and a gripping mechanism arranged based on the frame.

[0013] The first feeding tray is used to load disc-shaped cigarette paper;

[0014] The second feeding tray is used to load double-sided tape with one side exposed;

[0015] The reversing roller is used to receive the double-sided tape and cigarette paper output from the first and second feeding trays and to provide a steering and guiding function.

[0016] A pair of the aforementioned pressing rollers are disposed downstream of the reversing roller for pressing and bonding the exposed side of the double-sided tape and one side of the cigarette paper together.

[0017] The clamping mechanism is located downstream of the rolling roller and is used to clamp the far end of the sample that is stuck together.

[0018] The cutting mechanism is located between the clamping mechanism and the rolling roller, and is used to cut the pasted sample into a fixed size;

[0019] The gripping mechanism is positioned above or below the clamping mechanism and the rolling roller, and is used to transfer the pasted sample.

[0020] Based on the above, it also includes a hopper, the cross-section of which is adapted to the size of the sample and is used to store the prepared sample in conjunction with the gripping mechanism.

[0021] Based on the above, a horizontal support platform is provided on the output side of the rolling roller.

[0022] Based on the above, the gripping mechanism includes a lifting assembly mounted on the frame and a negative pressure suction cup mounted on the lifting assembly. The negative pressure suction cup is positioned above the sample, and the hopper is positioned directly below the negative pressure suction cup.

[0023] Based on the above, the clamping mechanism includes a lateral movement component and a gripper disposed on the lateral movement component. The lateral movement component is used to drive the gripper to move horizontally, and the gripper is used to clamp the sample.

[0024] Based on the above, the cutting mechanism includes a cutting blade and a translation mechanism, the translation mechanism being used to drive the cutting blade horizontally closer to the sample, the cutting blade being used to cut the sample.

[0025] Based on the above, both the first and second feeding trays are equipped with a locking mechanism. The locking mechanism includes a top block with an arc surface, a slide rail, and a tightening bolt. The top block slides in conjunction with the slide rail, and the tightening bolt drives the arc surface of the top block to press against the circumferential surface of the first / second feeding tray from the side.

[0026] Based on the above, both the first and second feeding discs are unpowered discs, and one or both of the pair of rolling rollers are active rollers.

[0027] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages:

[0028] 1. Use double-sided tape to fix the cigarette paper to form a panel structure with a certain thickness, and fully flatten the surface of the cigarette paper. The other side of the double-sided tape is used to stick to the experimental platform during the experiment to provide stability. Then, the initial tack of the water-based adhesive is measured based on one side of the flattened cigarette paper. Since the prepared samples are consistent, the measured results have a uniform structure as a reference, which is more meaningful for comparison and makes the test results more accurate.

[0029] 2. The entire manufacturing process is highly automated, completing a series of actions such as pasting, cutting, transferring, and storing, which improves efficiency. Attached Figure Description

[0030] Figure 1 This is one of the structural schematic diagrams of the sample preparation device for determining the initial tack of water-based adhesive in tobacco products according to this utility model.

[0031] Figure 2 This is the second schematic diagram of the sample preparation device for determining the initial tack of water-based adhesive in tobacco products according to this utility model.

[0032] Figure 3 This is a front view of the sample preparation device for determining the initial tack of water-based adhesive in tobacco products, after removing the cutting mechanism.

[0033] Figure 4 This is a schematic diagram of the structure of the sample for measuring the initial tack of the water-based adhesive for tobacco in this utility model.

[0034] In the diagram: 1. Frame; 2. First feeding tray; 3. Second feeding tray; 4. Reversing roller; 5. Compacting roller; 6. Clamping mechanism; 7. Cutting mechanism; 8. Gripping mechanism; 9. Hopper; 10. Support platform; 11. Locking mechanism;

[0035] 100. Double-sided adhesive tape; 101. Cigarette paper; 102. First adhesive layer; 103. Adhesive layer carrier; 104. Second adhesive layer; 105. Easy-tear layer; 110. Top block; 111. Slide rail; 112. Tightening bolt;

[0036] 200. Sample;

[0037] 601. Lateral movement assembly; 602. Gripper; 701. Cutting blade; 702. Translation mechanism; 801. Lifting assembly; 802. Negative pressure suction cup. Detailed Implementation

[0038] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0039] Example 1

[0040] like Figure 4 As shown, a sample for testing the initial tack of a water-based adhesive for tobacco includes tobacco paper 101, a first adhesive layer 102, an adhesive layer carrier 103, a second adhesive layer 104, and an easy-tear layer 105.

[0041] The cigarette paper 101, the first adhesive layer 102, the adhesive layer carrier 103, the second adhesive layer 104, and the easy-tear layer 105 are stacked sequentially from top to bottom.

[0042] Specifically, in this embodiment, the first adhesive layer 102, the adhesive layer carrier 103, the second adhesive layer 104, and the easy-tear layer 105 constitute a double-sided tape 100 with one side exposed, and the adhesive strength of both sides of the double-sided tape 100 is greater than the initial adhesive strength of the water-based adhesive.

[0043] During the experiment, a device with two sample stages was designed to press the sample together. One sample was fixed on the upper sample stage with the cigarette paper 101 facing down, and the other sample was fixed on the lower sample stage with the cigarette paper 101 facing up. A drop of water-based adhesive (with a set weight) was then dropped onto the lower cigarette paper. The samples were pressed together with set parameters and held for a set time. The stress conditions during the separation process were then detected and recorded. The maximum stress value was recorded as the initial adhesion force.

[0044] Example 2

[0045] like Figures 1-3 As shown, a sample preparation device for testing the initial tack of water-based adhesive for tobacco is used to prepare the sample for testing the initial tack of water-based adhesive for tobacco. The device includes a frame 1 and a first feeding tray 2, a second feeding tray 3, several reversing rollers 4, a pair of rolling rollers 5, a clamping mechanism 6, a cutting mechanism 7, and a gripping mechanism 8 arranged based on the frame 1.

[0046] The first feeding tray 2 is used to load disc-shaped cigarette paper 101. The cigarette paper raw material is disc-shaped and is fitted onto the first feeding tray 2 during use. In this embodiment, the first feeding tray 2 is not powered and is a non-powered feeding tray. The material is picked up by the traction of the downstream power mechanism.

[0047] The second feeding tray 3 is used to load double-sided tape 100 with one side exposed. The raw material of the double-sided tape is also disc-shaped and is mounted on the second feeding tray 3 during use. In this embodiment, the second feeding tray 3 is also not set with a fixed force and is a non-powered feeding tray. The material is picked up by the traction of the downstream power mechanism.

[0048] The reversing roller 4 is used to receive the double-sided tape 100 and cigarette paper 101 output from the first feeding tray 2 and the second feeding tray 3 and to provide a steering and guiding function. In this embodiment, there are two reversing rollers 4, which are used to feed the double-sided tape 100 and cigarette paper 101 into the downstream rolling roller 5 at a fixed angle.

[0049] A pair of rollers 5 are disposed downstream of the reversing roller 4 and are used to press and bond the exposed surface of the double-sided tape 100 and one side of the cigarette paper 101 together. In this embodiment, one or both rollers of the rollers 5 are configured as power rollers to provide traction force for the roll and to provide clamping force for the bonding action.

[0050] The clamping mechanism 6 is located downstream of the rolling roller 5 and is used to clamp the far end of the sample that is pasted together. After the cigarette paper 101 and the double-sided tape 100 are pasted together, a sample 200 is formed. In this embodiment, the clamping mechanism 6 includes a transverse component 601 and a gripper 602 disposed on the transverse component. The transverse component 601 is used to drive the gripper 602 to move horizontally. The gripper 602 is used to clamp the sample 200. The gripper 602 is a short-distance gripper driven by a cylinder. A flexible pad is provided between the clamping surfaces to avoid damaging the sample 200.

[0051] The cutting mechanism 7 is disposed between the clamping mechanism 6 and the rolling roller 5, and is used to cut the pasted sample 200 into a fixed size. Specifically, in this embodiment, the cutting mechanism 7 includes a cutting blade 701 and a translation mechanism 702. The translation mechanism 702 is used to drive the cutting blade 701 to move horizontally closer to the sample 200. The cutting blade 701 is used to cut the sample. The cutting blade 701 is designed as a scissor structure that is activated and moves from the horizontal side to the sample, and then cuts the sample.

[0052] The gripping mechanism 8 is positioned above or below the clamping mechanism 7 and the rolling roller 5 to transfer the pasted sample 200. Specifically, in this embodiment, the gripping mechanism 8 is designed to be positioned above. The gripping mechanism 8 includes a lifting assembly 801 mounted on the frame 1 and a negative pressure suction cup 802 mounted on the lifting assembly 801. The negative pressure suction cup 802 is positioned above the sample 200. It also includes a hopper 9, the cross-section of which is adapted to the size of the sample 200 and is used to store the prepared sample in conjunction with the gripping mechanism 8. The hopper 9 is positioned directly below the negative pressure suction cup 802.

[0053] During the cutting of sample 200, gripping mechanism 8 adsorbs sample 200 and works with clamping mechanism 6 to keep it stable. After cutting, sample 200 is transferred to hopper 9.

[0054] In a preferred embodiment, the output side of the rolling roller 4 is provided with a horizontal support platform 10 for supporting the sample 200 over a short distance, so that it can move horizontally stably.

[0055] When adjusting the feeding state, both the first feeding tray 2 and the second feeding tray 3 are equipped with a locking mechanism 11. The locking mechanism 11 includes a top block 110 with an arc surface, a slide rail 111, and a tightening bolt 112. The top block 110 slides in conjunction with the slide rail 111. The tightening bolt 112 drives the arc surface of the top block 110 to press against the circumferential surface of the first feeding tray 2 / second feeding tray 3 from the side, thereby adjusting the friction between the first feeding tray 2 and second feeding tray 3 and the locking mechanism 11. Combined with the front traction power, this ensures the stability of the released raw materials.

[0056] Working principle explanation:

[0057] Install the cigarette paper roll and double-sided adhesive tape roll in advance, then pull the free end to the upper roller between the pressing roller 5, and the automated manufacturing can be started.

[0058] Start the drive motor of the pressing roller 5. The pressing roller 5 rotates at a constant speed. The cigarette paper 101 and double-sided tape 100 on the two material trays are slowly and steadily released by traction. When passing through the pressing roller 5, the cigarette paper 101 and double-sided tape 100 are squeezed together, and the adhesive surface and the cigarette paper are bonded together. The bonded sample 200 is output.

[0059] The clamping mechanism moves a short distance to the left at a set frequency to clamp the far end of the sample 200, and moves to the right synchronously with the sample 200 to the target position.

[0060] During this process, the gripping mechanism 8 moves down and uses the negative pressure suction cup 802 to hold the upper surface of the sample 200. At this time, the entire machine can stop operating, and the cutting mechanism installed on one side moves horizontally to the sample 200 and cuts the sample to a fixed size using a cutting blade.

[0061] After cutting, the clamping mechanism is released, and the gripping mechanism moves the cut sample down and places it into the material bin 9 for stacking.

[0062] After the gripping mechanism 8 and the cutting mechanism 7 return to their positions, the equipment continues to cycle through the aforementioned steps to produce the next sample.

[0063] After the samples are stacked to a certain height, they are removed by a designated person to vacate the area and continue manufacturing.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A water-based adhesive for cigarettes initial tack test sample, characterized by: It includes cigarette paper, a first adhesive layer, an adhesive carrier, a second adhesive layer, and an easy-tear layer; The cigarette paper, the first adhesive layer, the adhesive layer carrier, the second adhesive layer, and the easy-tear layer are stacked sequentially from top to bottom.

2. A water-based adhesive for cigarettes initial tack test sample according to claim 1, characterized in that: The first adhesive layer, the adhesive carrier, the second adhesive layer, and the easy-tear layer constitute a double-sided tape with one side exposed, and the adhesive strength of both sides of the double-sided tape is greater than the initial tack of the water-based adhesive.

3. A device for preparing a test sample for initial adhesion determination of a water-based adhesive for tobacco use according to claim 1 or 2, characterized in that: It includes a frame and a first feeding tray, a second feeding tray, several reversing rollers, a pair of pressing rollers, a clamping mechanism, a cutting mechanism and a gripping mechanism based on the frame; The first feeding tray is used to load disc-shaped cigarette paper; The second feeding tray is used to load double-sided tape with one side exposed; The reversing roller is used to receive the double-sided tape and cigarette paper output from the first and second feeding trays and to provide a steering and guiding function. A pair of the aforementioned pressing rollers are disposed downstream of the reversing roller for pressing and bonding the exposed side of the double-sided tape and one side of the cigarette paper together. The clamping mechanism is located downstream of the rolling roller and is used to clamp the far end of the sample that is stuck together. The cutting mechanism is located between the clamping mechanism and the rolling roller, and is used to cut the pasted sample into a fixed size; The gripping mechanism is positioned above or below the clamping mechanism and the rolling roller, and is used to transfer the pasted sample.

4. A water-based adhesive for cigarettes initial tack test sample preparation device according to claim 3, characterized in that: It also includes a hopper, the cross-section of which is adapted to the size of the sample and is used to store the prepared sample in conjunction with the gripping mechanism.

5. The sample preparation apparatus for determining the initial tack of water-based adhesive for tobacco products according to claim 4, characterized in that: A horizontal support platform is provided on the output side of the rolling roller.

6. A water-based adhesive for cigarettes initial tack test sample preparation device according to claim 5, characterized in that: The gripping mechanism includes a lifting assembly mounted on the frame and a negative pressure suction cup mounted on the lifting assembly. The negative pressure suction cup is positioned above the sample, and the hopper is positioned directly below the negative pressure suction cup.

7. A water-based adhesive for cigarettes initial tack test sample preparation device according to claim 5, characterized in that: The clamping mechanism includes a lateral movement component and a gripper disposed on the lateral movement component. The lateral movement component is used to drive the gripper to move horizontally, and the gripper is used to clamp the sample.

8. A water-based adhesive for cigarettes initial tack test sample preparation device according to claim 5, characterized in that: The cutting mechanism includes a cutting blade and a translation mechanism, the translation mechanism being used to drive the cutting blade horizontally closer to the sample, the cutting blade being used to cut the sample.

9. A water-based adhesive for cigarettes initial tack test sample preparation device according to claim 3 or 4, characterized in that: Both the first and second feeding trays are equipped with a locking mechanism. The locking mechanism includes a top block with an arc surface, a slide rail, and a tightening bolt. The top block slides in conjunction with the slide rail, and the tightening bolt drives the arc surface of the top block to press against the circumferential surface of the first / second feeding tray from the side.

10. A water-based adhesive for cigarettes initial tack test sample preparation device according to claim 9, characterized in that: Both the first and second feeding discs are unpowered discs, and one or both of the pair of rolling rollers are active rollers.

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