Paper forming degree measuring instrument

Abstract

The utility model belongs to the field of papermaking technology, and in particular, relates to a paper forming degree measuring instrument, including a bearing platform, a first pressing component and a bending component. The bearing platform is fixedly arranged on a base, and the bearing platform is used to hold the paper to be tested, and the paper to be tested includes a flat-lying portion and a suspended portion, and the flat-lying portion is placed on the bearing platform; the first pressing component is arranged above the bearing platform, and can press the flat-lying portion of the paper to be tested downward onto the bearing platform; the bending component is arranged on one side of the bearing platform, and the suspended portion of the paper to be tested is suspended on one side of the bending component, and the bending component can rotate to bend the suspended portion into a state perpendicular to the flat-lying portion. The first pressing component of the utility model first presses down and fixes the flat-lying portion, and then the first pressing component rotates to bend the flat-lying portion into a state perpendicular to the flat-lying portion. This method of folding the paper to be tested into a 90° angle has a high bending degree and a better bending effect, and can make the measurement result of the forming degree more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking, and in particular relates to a paper forming degree measuring instrument. Background Art

[0002] Forming degree refers to the rebound angle measured after the paper is folded into a 90° angle under pressure and the pressure is released within a period of time. The smaller the rebound angle, the better the forming degree. If the paper rebounds strongly after folding, the rebound angle will be too large, causing the folder and the edge of the paper to intersect incorrectly, which is prone to misalignment and slippage, unstable packaging quality and deformation, which can easily hinder the operation of the packaging machine and cause paper waste. Therefore, it can be said that measuring the paper forming degree has become an indispensable inspection step before packaging. And with the continuous expansion and development of the packaging industry and the continuous improvement of people's consumption level, the packaging machine has higher and higher requirements for paper forming degree.

[0003] At present, there is a paper forming degree measuring instrument with patent number CN102359932B, which uses one cylinder to press down, and the second cylinder presses down to a lower groove to bend the paper. This method cannot accurately locate the position where the second cylinder presses down, and the bending is not in place, which will affect the final measurement result. Utility Model Content

[0004] The purpose of the utility model is to provide a paper forming degree measuring instrument to solve the above-mentioned technical problems, so as to improve the bending effect and make the forming degree measurement result more accurate.

[0005] In view of this, the utility model provides a paper forming degree measuring instrument, comprising:

[0006] A bearing platform, the bearing platform is fixedly arranged on the base, and the bearing platform is used to bear the paper to be tested, and the paper to be tested comprises a flat-lying part and a suspended part, and the flat-lying part is carried on the bearing platform;

[0007] A first pressing component, which is arranged above the supporting platform and can press the flat part of the paper to be tested downward onto the supporting platform;

[0008] The bending assembly is arranged on one side of the bearing platform, the suspended part of the paper to be tested is suspended on one side of the bending assembly, and the bending assembly can rotate to bend the suspended part into a state perpendicular to the flat part.

[0009] In this technical solution, the first pressing component first presses down to fix the flat part, and then the first pressing component rotates to make the flat part bend into a state perpendicular to the flat part. This method of folding the paper to be tested into a 90° angle has a high bending degree and a better bending effect, which can make the measurement result of the forming degree more accurate.

[0010] Furthermore, the first pressing component includes:

[0011] A lower pressing plate, the lower pressing plate being arranged above the bearing platform;

[0012] A downward pressing cylinder, wherein the piston rod of the downward pressing cylinder vertically points to the bearing platform, and the output end of the piston rod of the downward pressing cylinder is connected to the downward pressing plate.

[0013] Furthermore, the measuring instrument also includes a fixing frame, and both ends of the lower pressure plate are slidably arranged on the fixing frame, and one end of the lower pressure cylinder away from the piston rod is connected to the fixing frame.

[0014] Furthermore, the bending assembly comprises:

[0015] A bending plate, the bending plate is arranged on a side of the supporting platform having a suspended portion of the paper to be tested;

[0016] A rotating seat, wherein two rotating seats are respectively arranged on both sides of the bending plate, a connecting hole is opened on the rotating seat, one end of the rotating shaft is rotatably sleeved in the connecting hole, and the other end is fixedly connected to the side of the bending plate;

[0017] A bending cylinder, one end of which is connected to a fixed frame, an output end of a piston rod of the bending cylinder is hinged to a bending plate, when the piston rod of the bending cylinder is retracted, the bottom surface of the bending plate is parallel to the top surface of the supporting platform and the vertical distance is the paper passing distance, when the piston rod of the bending cylinder is extended, the bottom surface of the bending plate and the top surface of the supporting platform are vertically arranged on the side of the supporting platform.

[0018] In the present technical scheme, the piston rods of the pressing cylinder and the bending cylinder are retracted before measurement, and the paper is inserted between the bottom surface of the bending plate and the top surface of the supporting platform, so that the flat-lying part of the paper to be measured is set on the top surface of the supporting platform, and the suspended part is suspended below the bottom surface of the bending plate. The pressing cylinder then presses down to press the flat-lying part onto the top surface of the supporting platform. The bending cylinder then presses down to rotate the bending plate around the axis of the rotating shaft, thereby bending the suspended part suspended below the bending plate until the suspended part is pressed against the side of the supporting platform. In this way, the suspended part is bent to be perpendicular to the flat-lying part. After maintaining the corresponding position, the bending cylinder is reset, and the parameters of the paper before and after bending are compared to obtain the rebound parameters.

[0019] Furthermore, the measuring instrument is provided with an adjusting device for adjusting the paper feeding distance.

[0020] In the technical solution, by adjusting the paper passing distance, the measuring instrument can be adapted to measure papers of different thicknesses and weights, thereby increasing the utilization rate of the measuring instrument.

[0021] Furthermore, the adjusting device comprises:

[0022] A guide column, wherein two guide columns are respectively arranged in bases below the rotating seat;

[0023] A connecting seat, wherein the connecting seat is arranged in the base, the connecting seat is slidably sleeved on the guide column up and down and is fixedly connected to the rotating seat, an inclined sliding groove is provided on the connecting seat, and an adjusting pin is slidably arranged in the inclined sliding groove;

[0024] A screw rod, which is perpendicular to the guide column and rotatably arranged in the base;

[0025] A slider, wherein the slider is slidably arranged on a bottom plate in the base, the slider is spirally connected to the screw rod, and the top of the slider is fixedly connected to the adjusting pin;

[0026] An adjusting knob is fixedly connected to the end of the screw rod and is rotatably arranged outside the base.

[0027] In the present technical solution, the screw is rotated by rotating the adjusting knob, so that the slider slides along the screw, and the slider slides along the inclined slide groove with the adjusting pin. Since the height direction position of the slider is limited, the adjusting pin will slide along the inclined slide groove with the connecting seat on the guide column, thereby changing the height of the rotating seat, thereby adjusting the distance between the bottom surface of the bending plate connected to the rotating seat and the top surface of the supporting platform for the paper towel to pass through.

[0028] Furthermore, a visual recognition camera is arranged on the base, and a camera storage system is connected to a computer.

[0029] In this technical solution, the visual recognition system is used to identify the change in the projection length of the paper to be tested before and after it is bent, and the rebound parameters can be calculated by a computer.

[0030] Furthermore, the measuring instrument is also provided with a time relay, and the time relay is used to control the time for the bending cylinder piston rod to extend.

[0031] In the present technical solution, the time relay is a universal means for controlling pressure bending in this field.

[0032] Furthermore, the measuring method of the paper forming degree measuring instrument comprises the following steps:

[0033] S1: insert the paper to be tested, adjust the paper passing distance between the bottom surface of the bending plate and the top surface of the loading platform through the adjusting device to adapt to the paper to be tested, insert the paper to be tested between the bottom surface of the bending plate and the top surface of the loading platform, so that the flat part of the paper to be tested is set on the top surface of the loading platform, and the suspended part is suspended below the bottom surface of the bending plate;

[0034] S2: Fix the flat part, extend the piston rod of the downward pressure cylinder and press the flat part onto the top surface of the supporting platform, and take a photo of the suspended part with the visual recognition camera;

[0035] S3: Bend the suspended part, extend the piston rod of the bending cylinder and press down to make the bending plate rotate around the axis of the shaft, bend the suspended part suspended below the bending plate, until the suspended part is pressed against the side of the bearing platform,

[0036] S4: The suspended part rebounds. When the time set by the time relay is reached, the piston rod of the bending cylinder retracts and returns to its original position, and the suspended part rebounds. The visual recognition camera takes a photo of the suspended part at this time.

[0037] S5: Obtain rebound parameters. Compare the two sets of photos taken in S2 and S4 by computer to calculate the paper rebound parameters.

[0038] The beneficial effects of the utility model are:

[0039] 1. Fold the paper to be tested into a 90° angle. The higher the bending degree, the better the bending effect will be, which can make the measurement result of the forming degree more accurate.

[0040] 2. By adjusting the paper feeding distance, the measuring instrument can be used to measure papers of different thicknesses and weights, thus increasing the utilization rate of the measuring instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a three-dimensional picture of the measuring instrument before bending the paper;

[0042] Figure 2 yes Figure 1 A cross-sectional view of

[0043] Figure 3 It is a three-dimensional picture of the measuring instrument when the paper is bent;

[0044] Figure 4 yes Figure 3 A cross-sectional view of

[0045] Figure 5 is a schematic diagram of the regulating device.

[0046] The symbols in the figure are:

[0047] 1. Carrying platform; 2. Base; 3. Flat part; 4. Suspended part; 5. Paper to be tested; 6. Lower pressure plate; 7. Lower pressure cylinder; 8. Fixed frame; 9. Bending plate; 10. Rotating seat; 11. Bending cylinder; 12. Connecting hole; 13. Rotating shaft; 14. Paper feeding distance; 15. Guide column; 16. Connecting seat; 17. Screw; 18. Slider; 19. Adjustment knob; 20. Tilt slide; 21. Adjustment pin; 22. Visual recognition camera. DETAILED DESCRIPTION

[0048] The following will be combined with the 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, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0049] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. 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 drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present 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 can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. 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 the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually 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. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0052] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment 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 reverse 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] Embodiment 1:

[0054] like Figure 1-4 As shown, a paper forming degree measuring instrument comprises a carrier 1, a first pressing component and a bending component. The carrier 1 is fixedly arranged on a base 2, and is used to hold a paper 5 to be tested. The paper 5 to be tested comprises a flat portion 3 and a suspended portion 4, and the flat portion 3 is placed on the carrier 1; the first pressing component is arranged above the carrier 1, and can press the flat portion 3 of the paper 5 to be tested downward onto the carrier 1; the bending component is arranged on one side of the carrier 1, and the suspended portion 4 of the paper 5 to be tested is suspended on one side of the bending component, and the bending component can rotate to bend the suspended portion 4 into a state perpendicular to the flat portion 3.

[0055] The first pressing component first presses down to fix the flat part 3, and then rotates the flat part 3 to bend it into a state perpendicular to the flat part 3. This method of folding the paper 5 to be tested into a 90° angle has a high bending degree and a better bending effect, which can make the measurement result of the forming degree more accurate.

[0056] The first pressing assembly comprises a pressing plate 6 and a pressing cylinder 7. The pressing plate 6 is arranged above the bearing platform 1; the piston rod of the pressing cylinder 7 is vertically directed toward the bearing platform 1, and the output end of the piston rod of the pressing cylinder 7 is connected to the pressing plate 6.

[0057] The measuring instrument further comprises a fixing frame 8 , on which both ends of the lower pressing plate 6 are slidably arranged, and one end of the lower pressing cylinder 7 away from the piston rod is connected to the fixing frame 8 .

[0058] The bending assembly includes a bending plate 9, a rotating seat 10 and a bending cylinder 11. The bending plate 9 is arranged on one side of the support platform 1 having the suspended portion 4 of the paper 5 to be tested; there are two rotating seats 10 respectively arranged on both sides of the bending plate 9, and a connecting hole 12 is opened on the rotating seat 10. One end of the rotating shaft 13 is rotatably sleeved in the connecting hole 12, and the other end is fixedly connected to the side of the bending plate 9; one end of the bending cylinder 11 is connected to the fixing frame 8, and the output end of the piston rod of the bending cylinder 11 is hinged to the bending plate 9. When the piston rod of the bending cylinder 11 is retracted, the bottom surface of the bending plate 9 is parallel to the top surface of the support platform 1 and the vertical distance is the paper passing distance 14. When the piston rod of the bending cylinder 11 is extended, the bottom surface of the bending plate 9 is perpendicular to the top surface of the support platform 1 and is arranged on the side of the support platform 1.

[0059] Before measurement, the piston rods of the pressing cylinder 7 and the bending cylinder 11 are retracted, and the paper is inserted between the bottom surface of the bending plate 9 and the top surface of the supporting platform 1, so that the flat part 3 of the paper 5 to be tested is set on the top surface of the supporting platform 1, and the suspended part 4 is suspended below the bottom surface of the bending plate 9, and then the pressing cylinder 7 presses down to press the flat part 3 on the top surface of the supporting platform 1, and then the bending cylinder 11 presses down to make the bending plate 9 rotate around the axis of the rotating shaft 13, thereby bending the suspended part 4 suspended below the bending plate 9 until the suspended part 4 is pressed against the side of the supporting platform 1, so that the suspended part 4 is bent to be perpendicular to the flat part 3. After maintaining the corresponding position, the bending cylinder 11 is reset, and the parameters before and after the bending of the paper are compared to obtain the rebound parameters.

[0060] Embodiment 2:

[0061] like Figure 5 As shown, the measuring instrument is provided with an adjusting device for adjusting the paper passing distance 14. By adjusting the paper passing distance 14, the measuring instrument can be applied to the measurement of paper of different thickness and weight, thereby increasing the utilization rate of the measuring instrument.

[0062] The adjustment device includes a guide column 15, a connecting seat 16, a screw 17, a slider 18 and an adjustment knob 19. The guide column 15 has two parts respectively arranged in the base 2 below the rotating seat 10; the connecting seat 16 is arranged in the base 2, the connecting seat 16 is slidably sleeved on the guide column 15 up and down and is fixedly connected to the rotating seat 10, and an inclined slide groove 20 is provided on the connecting seat 16, and an adjustment pin 21 is slidably arranged in the inclined slide groove 20; the screw 17 is perpendicular to the guide column 15 and is rotatably arranged in the base 2; the slider 18 is slidably arranged on the bottom plate in the base 2, the slider 18 is spirally connected to the screw 17, and the upper part of the slider 18 is fixedly connected to the adjustment pin 21; the adjustment knob 19 is fixedly connected to the end of the screw 17 and is rotatably arranged outside the base 2.

[0063] By rotating the adjusting knob 19 to rotate the screw 17, the slider 18 slides along the screw 17, and the slider 18 slides along the inclined slide groove 20 with the adjusting pin 21. Since the height position of the slider 18 is limited, the adjusting pin 21 slides along the inclined slide groove 20 with the connecting seat 16 on the guide column 15, thereby changing the height of the rotating seat 10, thereby adjusting the size of the paper towel passing distance 14 between the bottom surface of the bending plate 9 connected to the rotating seat 10 and the top surface of the supporting platform 1. After the adjustment is in place, the extension stroke of the cylinder can be fine-tuned accordingly.

[0064] Embodiment 3:

[0065] like Figure 1-4 As shown, a visual recognition camera 22 is provided on the base 2, and the camera storage system is connected to the computer. Through the visual recognition system, the change in the projected length of the paper 5 to be tested before and after bending is identified, and the rebound parameter can be calculated by the computer.

[0066] The measuring instrument is also provided with a time relay, which is used to control the time when the piston rod of the bending cylinder 11 extends. The time relay is a universal means for controlling the bending in this field.

[0067] The measuring method of the paper forming degree measuring instrument comprises the following steps:

[0068] S1: insert the paper 5 to be tested, adjust the paper passing distance 14 between the bottom surface of the bending plate 9 and the top surface of the supporting platform 1 through the adjusting device to adapt to the paper 5 to be tested, insert the paper 5 to be tested between the bottom surface of the bending plate 9 and the top surface of the supporting platform 1, so that the flat-lying portion 3 of the paper 5 to be tested is set on the top surface of the supporting platform 1, and the suspended portion 4 is suspended below the bottom surface of the bending plate 9;

[0069] S2: fix the flat part 3, extend the piston rod of the downward pressure cylinder 7 and press the flat part 3 onto the top surface of the supporting platform 1, and the visual recognition camera 22 takes a photo of the suspended part 4 at this time;

[0070] S3: bend the suspended portion 4, the piston rod of the bending cylinder 11 extends and presses down to rotate the bending plate 9 around the axis of the rotating shaft 13, and bends the suspended portion 4 suspended below the bending plate 9 until the suspended portion 4 is pressed against the side of the bearing platform 1.

[0071] S4: The suspended part 4 rebounds. When the time set by the time relay is reached, the piston rod of the bending cylinder 11 retracts and returns to its original position, the suspended part 4 rebounds, and the visual recognition camera 22 takes a photo of the suspended part 4 at this time;

[0072] S5: Obtain rebound parameters. Compare the two sets of photos taken in S2 and S4 by computer to calculate the paper rebound parameters.

[0073] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments 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 the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A paper forming degree measuring instrument, characterized in that ,include: A carrying platform (1), wherein the carrying platform (1) is fixedly arranged on a base (2), and the carrying platform (1) is used to carry a paper to be tested (5), wherein the paper to be tested (5) comprises a flat-lying portion (3) and a suspended portion (4), and the flat-lying portion (3) is carried on the carrying platform (1); A first pressing component, which is arranged above the support platform (1) and can press the flat portion (3) of the paper (5) to be tested downward onto the support platform (1); A bending assembly is arranged on one side of a support platform (1); a suspended portion (4) of a paper to be tested (5) is suspended on one side of the bending assembly; and the bending assembly can rotate to bend the suspended portion (4) into a state perpendicular to the flat portion (3).

2. A paper forming degree measuring instrument according to claim 1, characterized in that: The first pressing component comprises: A lower pressing plate (6), wherein the lower pressing plate (6) is arranged above the bearing platform (1); A downward pressing cylinder (7), wherein the piston rod of the downward pressing cylinder (7) vertically points toward the supporting platform (1), and the output end of the piston rod of the downward pressing cylinder (7) is connected to the downward pressing plate (6).

3. A paper forming degree measuring instrument according to claim 2, characterized in that: The measuring instrument also includes a fixing frame (8), on which both ends of the lower pressing plate (6) are slidably arranged, and one end of the lower pressing cylinder (7) away from the piston rod is connected to the fixing frame (8).

4. A paper forming degree measuring instrument according to claim 3, characterized in that: The bending assembly comprises: A bending plate (9), the bending plate (9) being arranged on a side of the support platform (1) having a suspended portion (4) of the paper (5) to be tested; A rotating seat (10), wherein the rotating seat (10) has two parts respectively arranged on both sides of the bending plate (9), a connecting hole (12) is opened on the rotating seat (10), one end of the rotating shaft (13) is rotatably sleeved in the connecting hole (12), and the other end is fixedly connected to the side of the bending plate (9); A bending cylinder (11), one end of which is connected to a fixing frame (8), an output end of a piston rod of the bending cylinder (11) is hinged to a bending plate (9), when the piston rod of the bending cylinder (11) is retracted, the bottom surface of the bending plate (9) is parallel to the top surface of the bearing platform (1) and the vertical distance is the paper passing distance (14), when the piston rod of the bending cylinder (11) is extended, the bottom surface of the bending plate (9) and the top surface of the bearing platform (1) are vertically arranged on the side of the bearing platform (1).

5. A paper forming degree measuring instrument according to claim 4, characterized in that: The measuring instrument is provided with an adjusting device for adjusting the paper passing distance (14).

6. A paper forming degree measuring instrument according to claim 5, characterized in that: The regulating device comprises: A guide column (15), wherein the guide column (15) has two guide columns (15) respectively arranged in the base (2) below the rotating base (10); A connecting seat (16), wherein the connecting seat (16) is arranged in the base (2), the connecting seat (16) is slidably sleeved on the guide column (15) up and down and is fixedly connected to the rotating seat (10), an inclined slide groove (20) is provided on the connecting seat (16), and an adjusting pin (21) is slidably arranged in the inclined slide groove (20); A screw rod (17), wherein the screw rod (17) is perpendicular to the guide column (15) and is rotatably arranged in the base (2); A slider (18), wherein the slider (18) is slidably disposed on a bottom plate in the base (2), the slider (18) is spirally connected to the screw rod (17), and the top of the slider (18) is fixedly connected to the adjusting pin (21); An adjusting knob (19) is fixedly connected to the end of the screw rod (17) and is rotatably arranged outside the base (2).

7. A paper forming degree measuring instrument according to claim 1, characterized in that: A visual recognition camera (22) is arranged on the base (2), and a camera storage system is connected to a computer.

8. A paper forming degree measuring instrument according to claim 4, characterized in that: The measuring instrument is also provided with a time relay, which is used to control the time for the piston rod of the bending cylinder (11) to extend.

Images