Cigarette paper ink explosion detection device and method

Abstract

The present invention belongs to the technical field of cigarette paper production, and more particularly relates to a device for detecting ink bursts in cigarette paper. The device comprises a machine base, on which are mounted pressure rollers and a distance adjustment structure. The pressure rollers comprise two, arranged in parallel, with a paper feed gap formed between them. The distance adjustment structure is used to adjust the height of the paper feed gap. By providing the distance adjustment structure, the present invention allows for adjustable paper feed gaps, thereby accommodating ink burst detection for different paper types or paper with different coloring processes. This makes the ink burst detection device highly versatile and ensures the accuracy of ink burst detection results by ensuring paper folding precision.

Description

Technical Field

[0001] The present invention belongs to the technical field of cigarette paper production, and in particular relates to a device and method for detecting ink burst in cigarette paper. Background Art

[0002] Coated white paper is usually used to make paper boxes after printing. However, ink bursting is prone to occur at the creases of the paper boxes, which is manifested as the original white color of the coated white paper exposed at the creases of the paper boxes. This is particularly obvious in monochrome printing with darker colors such as black and blue, which affects the appearance.

[0003] Typically, checking for ink splatter or uneven printing on printed paper involves hand-folding or scraping the ink layer on the printed material. However, individual techniques and pressure vary, affecting the quality of the printed material. Misjudgment can directly impact the quality of the printed material and even render the entire batch of products scrapped. Therefore, proper inspection methods and judgment are crucial.

[0004] Currently, when conducting ink burst tests on cigarette paper, dyne pens and dyne liquid are generally used to test the surface strength of the printed surface of the paper to indicate whether the paper is suitable for printing. However, this method is not effective for quality inspection of thicker packaging cigarette paper. It is difficult to determine the ink burst limit of the cigarette paper, which is difficult to meet usage requirements. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned technical problems and provide a device and method for detecting ink burst on cigarette paper, thereby achieving the effect of ensuring the accuracy of ink burst detection results.

[0006] In view of this, the present invention provides a cigarette paper ink burst detection device, comprising a base, on which is provided:

[0007] The pressure rollers include two pressure rollers, which are arranged in parallel up and down, and a paper feeding gap is formed between the pressure rollers;

[0008] A distance adjustment structure is used to adjust the height of the paper feeding gap.

[0009] In this technical solution, by setting a distance adjustment structure, the paper feeding gap can be adjusted to adapt to the folding ink burst detection of different papers or papers with different coloring processes, making the ink burst detection device highly versatile and also able to ensure the accuracy of the folding paper and the accuracy of the ink burst detection results.

[0010] Furthermore, the distance adjustment structure includes a coarse adjustment structure and a fine adjustment structure. The coarse adjustment structure is used to coarsely adjust the height of the paper gap, and the fine adjustment structure is used to finely adjust the height of the paper gap. The adjustment accuracy of the fine adjustment structure is greater than that of the coarse adjustment structure.

[0011] In this technical solution, the height of the paper feeding gap is adjusted by combining coarse adjustment and fine adjustment, so that the paper feeding gap is neither too wide to prevent ink burst at the folding area, nor too narrow to damage the paper and affect the observation and judgment of the ink burst detection. In this way, it is ensured that the height of the entire paper feeding gap meets the requirements of the ink burst detection for the degree of paper folding, thereby ensuring the accuracy of the ink burst detection results.

[0012] Furthermore, the coarse adjustment structure is used to adjust the center distance between the two pressing rollers.

[0013] Furthermore, the coarse adjustment structure includes:

[0014] A slider, wherein the slider is slidably arranged on the machine base, and the end portion of the pressing roller is circumferentially rotated and arranged in the slider;

[0015] A coarse adjustment handle, wherein the coarse adjustment handle is threadedly connected to the machine base, and one end of the coarse adjustment handle abuts against the slider;

[0016] A coarse adjustment spring, one end of which is fixed to the machine base and the other end of which is connected to the slider;

[0017] The coarse adjustment spring and the coarse adjustment handle are respectively arranged on both sides of the slider, and the sliding directions of the coarse adjustment spring, the coarse adjustment handle and the slider are all on the same straight line.

[0018] In this technical solution, when it is necessary to adjust the center distance between the two pressure rollers, the coarse adjustment handle is rotated so that the coarse adjustment handle moves along its own axis under the action of the thread. The slider will be pushed by the coarse adjustment handle to move in the direction of the coarse adjustment spring, or will be moved toward the coarse adjustment handle by the rebound force of the coarse adjustment spring, so as to achieve the purpose of moving the pressure roller to adjust the center distance between the two pressure rollers.

[0019] Furthermore, the fine adjustment structure is used to adjust the diameter of the pressure roller.

[0020] Furthermore, the fine-tuning structure includes:

[0021] A fine-adjustment rod, the fine-adjustment rod being arranged inside the pressure roller along the axis direction of the pressure roller;

[0022] A mounting sleeve, wherein the mounting sleeve sliding sleeve is arranged outside the fine adjustment rod;

[0023] There are two conical tires, which are slidably arranged at both ends of the mounting sleeve. The outer periphery of the conical tire forms a taper along the length of the pressure roller.

[0024] The expansion sleeve is arranged on the outside of the conical tire expansion sleeve, and includes a plurality of separated arc blocks and a limit spring. The arc blocks can be arranged into a cylindrical shape. The limit spring ring is arranged on the outer circumference of the arc-shaped cylinder. The limit spring always has a movement tendency to make the arc blocks move closer to each other toward the center of the circle.

[0025] The fine-adjusting rod is connected to the tapered tire expansion device via a connecting structure, and the connecting structure is used to enable the fine-adjusting rod to drive the tapered tire expansion device to move synchronously toward or away from the roller axis.

[0026] Furthermore, the connection structure includes:

[0027] There are two chutes, one on each side of the mounting sleeve, and the other divides the mounting sleeve into three sections along the axial direction.

[0028] A limiting rod is provided in the chute and is used to connect the three-section mounting sleeve that has been cut off. The above-mentioned conical tire expansion sleeve is provided on the limiting rod and can slide along the width direction of the chute;

[0029] Among them, the outer circumference of the fine-tuning rod is provided with a first thread and a second thread at positions corresponding to the two conical tire expansions, and the inner ring of the conical tire is provided with an internal thread matching the first thread and the second thread, and the rotation directions of the first thread and the second thread are opposite.

[0030] Furthermore, the pressure roller includes an expansion sleeve of a fine adjustment structure and an elastic rubber sleeve arranged on the outer periphery of the expansion sleeve.

[0031] In the present technical solution, when it is necessary to fine-tune and precisely adjust the height of the paper gap, the fine-tuning rod is rotated to make the two mounting sleeves move toward or away from each other under the action of the thread, and the diameter of the contact between the conical surface of the conical tire and the expanding sleeve will change. When the two mounting sleeves move toward each other, the large diameter of the conical tire contacts the expanding sleeve, which will squeeze the arc blocks in contact with the expanding sleeve to move outward, so that the diameter of the expanding sleeve becomes larger, and the height of the paper gap is reduced by squeezing the elastic rubber sleeve larger. If the two mounting sleeves move away from each other, the small diameter of the conical tire contacts the expanding sleeve, and the expanding sleeve will move the arc blocks inward close to each other under the action of the reset elastic force of the limit spring, so that the diameter of the expanding sleeve becomes smaller, and the height of the paper gap is increased by squeezing the elastic rubber sleeve larger.

[0032] Furthermore, the diameter adjustment range of the fine adjustment structure is between 0-0.3 mm.

[0033] Furthermore, the detection method of the cigarette paper ink explosion detection device includes the following steps:

[0034] S1: Coarse adjustment, the height of the paper gap is roughly adjusted through the coarse adjustment structure, so that the error between the height of the paper gap and the standard value required for paper ink burst is within 0.3mm;

[0035] S2: Fine adjustment, through the fine adjustment structure, the fine adjustment structure is used to finely adjust the height of the paper gap so that the height of the paper gap meets the standard value required for the paper to burst ink;

[0036] S3: Pre-folding: bend and fold the paper to be tested in advance to facilitate it to enter between the two pressing rollers;

[0037] S4: Folding: the pre-folded paper enters between two rotating rollers to complete the folding;

[0038] S5: Scan and analyze the ink burst area.

[0039] The beneficial effects of the present invention are:

[0040] 1. By setting a distance adjustment structure, the paper feeding gap can be adjusted to adapt to the folding ink burst detection of different papers or papers with different coloring processes, making the ink burst detection device highly versatile and also ensuring the accuracy of the paper folding accuracy and the accuracy of the ink burst detection results.

[0041] 2. Adjust the height of the paper gap by combining coarse adjustment and fine adjustment. The paper gap will not be too wide to prevent ink burst at the fold, nor will it be too narrow to damage the paper and affect the observation and judgment of the ink burst detection. In this way, the height of the paper gap can meet the requirements of the ink burst detection for the paper folding degree, and the accuracy of the ink burst detection results can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a perspective view of the present invention;

[0043] Figure 2 It is a cross-sectional view of the fine-tuning structure;

[0044] Figure 3 yes Figure 1 A magnified view of the local area A;

[0045] Figure 4 yes Figure 2 A magnified view of the local area B;

[0046] The marks in the figure are:

[0047] 1. Machine base; 2. Press roller; 3. Paper feed gap; 4. Coarse adjustment structure; 5. Slider; 6. Coarse adjustment handle; 7. Coarse adjustment spring; 8. Fine adjustment rod; 9. Mounting sleeve; 10. Expansion sleeve; 11. Conical expansion tire; 12. Arc block; 13. Limit spring; 14. Slide; 15. Limit rod; 16. First thread; 17. Second thread; 18. Elastic rubber sleeve. DETAILED DESCRIPTION

[0048] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0049] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0050] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0051] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0052] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0053] Example 1:

[0054] like Figure 1 As shown, a device for detecting ink bursts in cigarette paper comprises a base 1, mounted with pressure rollers 2 and a distance adjustment mechanism. The two pressure rollers 2 are arranged in parallel, forming a paper feed gap 3 between them. The distance adjustment mechanism is used to adjust the height of the paper feed gap 3. By providing the distance adjustment mechanism, the paper feed gap 3 can be adjusted to accommodate ink burst detection for different paper types or paper with different coloring processes. This makes the device highly versatile and ensures the accuracy of ink burst detection results by ensuring paper folding precision.

[0055] Example 2:

[0056] like Figure 1 As shown, the distance adjustment mechanism includes a coarse adjustment mechanism 4 and a fine adjustment mechanism. The coarse adjustment mechanism 4 is used to roughly adjust the height of the paper feed gap 3, which is used to adjust the center-to-center distance between the two pressure rollers 2. The fine adjustment mechanism is used to finely adjust the height of the paper feed gap 3. The fine adjustment mechanism is used to adjust the diameter of the pressure roller 2. The adjustment accuracy of the fine adjustment mechanism is greater than that of the coarse adjustment mechanism 4. By combining coarse and fine adjustment to adjust the height of the paper feed gap 3, the paper feed gap 3 is adjusted neither too wide, preventing ink burst at the fold, nor too narrow, damaging the paper and affecting the observation and judgment of the ink burst detection. This ensures that the height of the paper feed gap 3 meets the requirements of the ink burst detection for the degree of paper folding, thereby ensuring the accuracy of the ink burst detection results.

[0057] Example 3:

[0058] like Figure 1 and Figure 3As shown, the coarse adjustment structure 4 includes a slider 5, a coarse adjustment handle 6, and a coarse adjustment spring 7. The slider 5 is slidably mounted on the machine base 1, and the end of the pressure roller 2 is circumferentially rotated within the slider 5. The coarse adjustment handle 6 is threadedly connected to the machine base 1, with one end of the coarse adjustment handle 6 resting on the slider 5. One end of the coarse adjustment spring 7 is fixed to the machine base 1, and the other end is connected to the slider 5. The coarse adjustment spring 7 and the coarse adjustment handle 6 are respectively arranged on either side of the slider 5, and the sliding directions of the coarse adjustment spring 7, the coarse adjustment handle 6, and the slider 5 are all aligned.

[0059] When it is necessary to adjust the center distance between the two pressure rollers 2, rotate the coarse adjustment handle 6 so that the coarse adjustment handle 6 moves along its own axis under the action of the thread, and the slider 5 will be pushed by the coarse adjustment handle 6 to move in the direction of the coarse adjustment spring 7, or move toward the coarse adjustment handle 6 under the rebound force of the coarse adjustment spring 7, so as to achieve the purpose of moving the pressure roller 2 to adjust the center distance between the two pressure rollers 2.

[0060] Example 4:

[0061] like Figure 2 and Figure 4 As shown, the fine-tuning structure includes a fine-tuning rod 8, a mounting sleeve 9, an expansion sleeve 10, and a tapered tire 11. The fine-tuning rod 8 is arranged inside the pressure roller 2 along the axis of the pressure roller 2; the mounting sleeve 9 is slidably mounted on the outside of the fine-tuning rod 8; there are two tapered tires 11, which are slidably mounted at both ends of the mounting sleeve 9. The outer circumference of the tapered tire 11 forms a taper along the length of the pressure roller 2; the expansion sleeve 10 is mounted on the outside of the tapered tire 11 and includes a plurality of separated arc blocks 12 and a limit spring 13. The arc blocks 12 can be arranged into a cylindrical shape, and the limit spring 13 is arranged around the outer circumference of the arc-shaped cylinder. The limit spring 13 always has a tendency to move the arc blocks 12 closer to each other toward the center of the circle; the fine-tuning rod 8 and the tapered tire 11 are connected by a connecting structure, which is used to enable the fine-tuning rod 8 to drive the tapered tire 11 to move synchronously toward or away from each other along the axis of the pressure roller 2.

[0062] The connection structure includes two chute slots 14 and a limiting rod 15. Two chute slots 14 are provided, one on either side of the mounting sleeve 9, dividing the mounting sleeve 9 into three sections along its axis. The limiting rod 15 is disposed within the chute slots 14 to connect the three sections of the mounting sleeve 9. The tapered tire 11 is mounted on the limiting rod 15 and can slide along the width of the chute slots 14. A first thread 16 and a second thread 17 are provided on the outer circumference of the fine-tuning rod 8 at positions corresponding to the two tapered tires 11. The inner ring of the tapered tire 11 is provided with internal threads that mate with the first and second threads 16, 17, with the first and second threads 16, 17 rotating in opposite directions.

[0063] The pressure roller 2 comprises an expansion sleeve 10 of a fine adjustment structure and an elastic rubber sleeve 18 sleeved on the outer periphery of the expansion sleeve 10 .

[0064] When fine-tuning and precise adjustment of the height of the paper gap 3 is required, the fine-tuning rod 8 is rotated to make the two mounting sleeves 9 move toward or away from each other under the action of the thread, and the diameter of the tapered surface of the conical tire 11 in contact with the expanding sleeve 10 will change. When the two mounting sleeves 9 move toward each other, the large diameter of the conical tire 11 contacts the expanding sleeve 10, which will squeeze the arc blocks 12 in contact with the expanding sleeve 10 to move outward, so that the diameter of the expanding sleeve 10 becomes larger, and the elastic rubber sleeve 18 is squeezed to become larger, so that the height of the paper gap 3 becomes smaller. If the two mounting sleeves 9 move away from each other, the small diameter of the conical tire 11 contacts the expanding sleeve 10, and the expanding sleeve 10 will move the arc blocks 12 inward close to each other under the reset elastic force of the limit spring 13, so that the diameter of the expanding sleeve 10 becomes smaller, and the elastic rubber sleeve 18 is squeezed to become larger, so that the height of the paper gap 3 becomes larger.

[0065] Furthermore, the diameter adjustment range of the fine adjustment structure is between 0-0.3 mm.

[0066] Furthermore, the detection method of the cigarette paper ink explosion detection device includes the following steps:

[0067] S1: Coarse adjustment, using the coarse adjustment structure 4 to roughly adjust the height of the paper gap 3 so that the error between the height of the paper gap 3 and the standard value required for the paper to burst ink is within 0.3mm;

[0068] S2: Fine adjustment, through the fine adjustment structure. The fine adjustment structure is used to finely adjust the height of the paper gap 3 so that the height of the paper gap meets the standard value required for the paper to burst ink;

[0069] S3: Pre-folding, pre-bending and folding the paper to be tested to facilitate it to enter between the two pressing rollers 2;

[0070] S4: Folding: the pre-folded paper enters between two rotating press rollers 2 to complete the folding;

[0071] S5: Scan and analyze the ink burst area.

[0072] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A device for detecting ink burst on cigarette paper, characterized in that , including a machine base (1), on which is provided: Pressing rollers (2), the pressing rollers (2) comprising two, the two pressing rollers (2) being arranged in parallel up and down, with a paper feeding gap (3) formed between the pressing rollers (2); A distance adjustment structure, the distance adjustment structure is used to adjust the height of the paper feeding gap (3); The distance adjustment structure includes a coarse adjustment structure (4) and a fine adjustment structure, wherein the coarse adjustment structure (4) is used to coarsely adjust the height of the paper gap (3), and the fine adjustment structure is used to finely adjust the height of the paper gap (3), and the adjustment accuracy of the fine adjustment structure is greater than the adjustment accuracy of the coarse adjustment structure (4); The fine-tuning structure includes: A fine-adjustment rod (8), the fine-adjustment rod (8) being arranged inside the pressure roller (2) along the axis direction of the pressure roller (2); A mounting sleeve (9), wherein the mounting sleeve (9) is slidably mounted outside the fine adjustment rod (8); Conical tire expansion (11), there are two conical tire expansions (11), which are slidably arranged at both ends of the mounting sleeve (9), and the outer periphery of the conical tire expansion (11) forms a taper along the length of the pressure roller (2); An expansion sleeve (10), wherein the expansion sleeve (10) is sleeved on the outside of the conical expansion tire (11), and the expansion sleeve (10) includes a plurality of mutually separated arc blocks (12) and a limit spring (13), wherein the arc blocks (12) can be arranged in a cylindrical shape, and the limit spring (13) is arranged around the outer circumference of the arc-shaped cylinder, and the limit spring (13) always has a movement tendency to make the arc blocks (12) move closer to each other toward the center of the circle; The fine-adjusting rod (8) is connected to the conical tire expansion device (11) via a connecting structure, and the connecting structure is used to enable the fine-adjusting rod (8) to drive the conical tire expansion device (11) to move synchronously toward or away from each other along the axis direction of the pressure roller (2); The connection structure includes: A chute (14), wherein there are two chute grooves (14), which are respectively opened on both sides of the mounting sleeve (9), and the two chute grooves (14) cut the mounting sleeve (9) into three sections along the axial direction; A limiting rod (15), the limiting rod (15) is arranged in the chute (14) and is used to connect the truncated three-section mounting sleeve (9), and the above-mentioned conical tire expansion (11) is sleeved on the limiting rod (15) and can slide along the width direction of the chute (14); A first thread (16) and a second thread (17) are provided on the outer circumference of the fine adjustment rod (8) at positions corresponding to the two conical tire expansions (11), and an inner thread matching the first thread (16) and the second thread (17) is provided on the inner ring of the conical tire expansion (11), and the first thread (16) and the second thread (17) have opposite rotation directions.

2. The device for detecting ink burst on cigarette paper according to claim 1, characterized in that: The coarse adjustment structure (4) is used to adjust the center distance between the two pressing rollers (2).

3. The device for detecting ink burst on cigarette paper according to claim 2, characterized in that: The coarse adjustment structure (4) includes: A slider (5), wherein the slider (5) is slidably arranged on the machine base (1), and the end of the pressing roller (2) is circumferentially rotatably arranged in the slider (5); A coarse adjustment handle (6), wherein the coarse adjustment handle (6) is threadedly connected to the machine base (1), and one end of the coarse adjustment handle (6) abuts against the slider (5); A coarse adjustment spring (7), one end of which is fixedly mounted on the machine base (1) and the other end of which is connected to the slider (5); The coarse adjustment spring (7) and the coarse adjustment handle (6) are respectively arranged on both sides of the slider (5), and the sliding directions of the coarse adjustment spring (7), the coarse adjustment handle (6) and the slider (5) are all on the same straight line.

4. The device for detecting ink burst on cigarette paper according to claim 1, characterized in that: The fine adjustment structure is used to adjust the diameter of the pressure roller (2).

5. The device for detecting ink burst on cigarette paper according to claim 1, characterized in that: The pressure roller (2) comprises an expansion sleeve (10) of a fine adjustment structure and an elastic rubber sleeve (18) sleeved on the outer periphery of the expansion sleeve (10).

6. The device for detecting ink burst on cigarette paper according to claim 5, characterized in that: The diameter adjustment range of the fine adjustment structure is between 0-0.3 mm.

7. A detection method for the cigarette paper ink burst detection device according to claim 1, characterized in that: The detection method includes the following steps: S1: coarse adjustment, using the coarse adjustment structure (4) to roughly adjust the height of the paper gap (3) so that the error between the height of the paper gap (3) and the standard value required for the paper to burst ink is within 0.3 mm; S2: fine adjustment, using the fine adjustment structure to fine adjust the height of the paper gap (3) so that the height of the paper gap meets the standard value required for the paper to burst ink; S3: Pre-folding, pre-bending and folding the paper to be tested so that it can be easily inserted between the two pressing rollers (2); S4: folding, the pre-folded paper enters between two rotating press rollers (2) to complete the folding; S5: Scan and analyze the ink burst area.

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