Card thickness detection methods, card thickness detection devices, and automated packaging production lines

Abstract

This invention discloses a card thickness detection method, a card thickness detection device, and an automated packaging production line. The card thickness detection method includes the following steps: providing multiple stacked cards; obtaining a preset number of cards and detecting the actual total thickness of the stack; pushing the stacked cards into a stepped, staggered stacking state to create staggered thickness measurement steps between adjacent cards; detecting the unit thickness of any one of the thickness measurement steps and calculating a predicted total thickness based on the unit thickness and the preset number of cards; determining whether the difference between the predicted total thickness and the actual total thickness exceeds the error range; if no, the detection is normal; if yes, continue detecting the unit thickness of all thickness measurement steps and obtaining the actual number of cards; determining whether the preset number of cards matches the actual number of cards; if yes, the detection is normal; if no, the detection is abnormal. In summary, this invention can effectively prevent errors in the number of cards issued.

Description

Technical Field

[0001] This invention belongs to the field of card thickness detection and packaging technology, specifically relating to a card thickness detection method, a card thickness detection device, and an automatic packaging production line. Background Technology

[0002] Generally, a known method for measuring the thickness of thin products (such as paper, thin cards, etc.) is to clamp the paper by applying pressure to two rollers and then measuring the gap between the rollers. This method can reliably measure the thickness of thin products; however, it can only measure one product at a time, and cannot effectively measure the overall stack thickness or the thickness of each individual product when stacking thin products.

[0003] For thin products that require stacked packaging, such as stacked paper instruction manuals, playing cards, and labels, the card issuing production line disclosed in patent CN114037027B can achieve stacked product issuance. However, before packaging, in order to ensure the accuracy of the product quantity, the stack thickness should be detected. The aforementioned known method for measuring the thickness of thin products is not applicable to the product detection before stacked packaging. Therefore, this application proposes a new card thickness detection method, card thickness detection device, and automatic packaging production line. Summary of the Invention

[0004] Based on the above, the purpose of this invention is to provide a card thickness detection method, a card thickness detection device, and an automatic packaging production line, which can accurately detect the card thickness and number of cards when stacking cards on packaging paper, realize fully automatic card issuance, stacking, thickness detection, and packaging, and improve production efficiency.

[0005] 1. To achieve the above objectives, the present invention provides the following technical solution:

[0006] A card thickness detection device, comprising:

[0007] A material blocking mechanism, the material blocking mechanism including a baffle and a driving mechanism for driving the baffle to swing between a horizontal station, an inclined station and a vertical station;

[0008] A thickness measuring mechanism, comprising a pressure bar capable of elastically pressing against the top of a card and a sensor for detecting the elastic pressure of the pressure bar;

[0009] The moving drive mechanism independently drives the material blocking mechanism and the thickness measuring mechanism to move in a staggered manner along the same straight line;

[0010] Two sets of rotating card-aligning mechanisms are symmetrically distributed on both sides of the moving drive mechanism. The rotating card-aligning mechanisms perform the pressing operation on the side of the card and the card-aligning operation of multiple cards by rotation.

[0011] Preferably, the moving drive mechanism includes a guide rail and two drive threaded rods rotatably mounted on the guide rail, the two drive threaded rods respectively driving the material blocking mechanism and the thickness measuring mechanism to move along the guide rail.

[0012] Preferably, the driving mechanism includes an n-shaped base and a drive motor fixed on the n-shaped base. The baffle is rotatably installed in the groove of the n-shaped base and driven to rotate by the drive motor. The n-shaped base is screwed onto a drive threaded rod and slides inside the guide rail.

[0013] Preferably, the thickness measuring mechanism includes a slide seat screwed onto another drive threaded rod, and a slide sleeve fixed on the top of the slide seat and sleeved outside the guide rail. The pressure rod vertically penetrates the slide sleeve, and the sensor is fixed to the top of the slide sleeve.

[0014] Preferably, the thickness measuring mechanism further includes a top plate, a spring, and a pressure plate. The top plate is fixed to the top of the pressure rod, the pressure plate is slidably sleeved on the pressure rod and pressed against the top of the sensor, and the spring is connected between the top plate and the pressure plate.

[0015] Preferably, the thickness measuring mechanism further includes a magnetic base fixed to the bottom of the pressure rod and a pressure roller rotatably mounted on the bottom of the magnetic base, and an electromagnetic ring capable of attracting the magnetic base is fixed to the bottom of the sliding sleeve.

[0016] Preferably, the rotating card-aligning mechanism includes a mounting frame and an H-shaped bracket rotatably mounted on the mounting frame. Each of the four ends of the H-shaped bracket is rotatably fitted with a transmission wheel, and the four transmission wheels are fitted with a transmission belt. The rotating card-aligning mechanism abuts against the side of the card through the transmission belt.

[0017] Preferably, one of the four ends of the H-shaped bracket is a driving end, and an extension plate is fixed on the driving end; one of the four transmission wheels is a driving wheel, a driven gear is sleeved and fixed on the driving wheel, and a driving gear capable of meshing with the driven gear is installed on the extension plate.

[0018] Preferably, the card thickness detection device further includes a lifting bracket and a rotating roller that can press against the top of the card under the drive of the lifting bracket.

[0019] 2. As a general inventive concept, the present invention also provides the following technical solutions:

[0020] A method for detecting card thickness includes the following steps:

[0021] Offers multiple stacked cards;

[0022] Obtain the preset number of cards and detect the actual total thickness of the stack;

[0023] Push the stacked cards to form a stepped, staggered stacking state, so that there is a staggered thickness step between adjacent cards;

[0024] The unit thickness of any of the thickness-measuring steps is detected, and the predicted total thickness is calculated based on the unit thickness and the preset number of cards.

[0025] Determine whether the difference between the predicted total thickness and the actual total thickness exceeds the error range;

[0026] No, the test was normal;

[0027] Yes, continue to check the unit thickness of all thickness-measuring steps and obtain the actual number of cards;

[0028] Determine whether the preset number of cards matches the actual number of cards;

[0029] Yes, the test was normal;

[0030] No, the test result is abnormal.

[0031] 3. As a general inventive concept, the present invention also provides the following technical solutions:

[0032] A method for detecting card thickness includes the following steps:

[0033] In the material blocking mechanism, the baffle is driven to rotate and swing to a vertical position by a drive mechanism, providing multiple stacked cards and causing one side of the card to abut against the baffle;

[0034] Get the preset number of cards;

[0035] The thickness measuring mechanism is activated, causing the pressure bar to elastically press against the top of the stacked cards. The sensor acquires the current elastic pressure of the pressure bar and detects the actual total thickness of the stack based on the current elastic pressure.

[0036] In the material blocking mechanism, the baffle is driven to rotate and swing to the inclined position by the drive mechanism, and the material blocking mechanism is driven to move independently by the movement drive mechanism, thereby enabling the baffle to push multiple stacked cards to form a stepped staggered stacking state, so that a staggered thickness measurement step is formed between adjacent cards.

[0037] The thickness measuring mechanism is driven to move independently by the driving mechanism, so that the pressure rod moves along the misaligned thickness measuring steps, thereby detecting the unit thickness of any of the thickness measuring steps, and calculating the predicted total thickness based on the unit thickness and the preset number of cards.

[0038] Determine whether the difference between the predicted total thickness and the actual total thickness exceeds the error range;

[0039] No, the test was normal;

[0040] Yes, the thickness measuring mechanism is driven to move independently by the drive mechanism to continue to detect the unit thickness of all thickness measuring steps and obtain the actual number of cards;

[0041] Determine whether the preset number of cards matches the actual number of cards;

[0042] Yes, the test was normal;

[0043] No, the test result is abnormal.

[0044] 4. As a general inventive concept, the present invention also provides the following technical solutions:

[0045] An automated packaging production line includes:

[0046] A conveyor belt positioned along a first direction;

[0047] At least one card issuing device is positioned above the conveyor belt;

[0048] A card thickness detection device is disposed above the conveyor belt, and a gap is formed on the conveyor belt that allows the baffle to be inserted;

[0049] The intelligent terminal is used to control the automated packaging production line;

[0050] A visual inspection device is installed on the card issuing device;

[0051] A fully automatic packaging device is located downstream of the conveyor belt.

[0052] 5. As a general inventive concept, the present invention also provides the following technical solutions:

[0053] An automated packaging method, applied to the automated packaging production line, includes the following steps:

[0054] The at least one card issuing device performs a card issuing task according to the card issuing table to stack the issued cards on the conveyor belt;

[0055] The card thickness detection device detects the thickness of the cards stacked on the conveyor belt. If the detection is normal, the cards continue to be packaged by the fully automatic packaging equipment. If an abnormality is detected, the packaging task is stopped.

[0056] Compared with the prior art, the present invention has the following advantages:

[0057] This invention discloses a card thickness detection method, a card thickness detection device, and an automated packaging production line. It can arrange multiple stacked cards into a stepped, staggered stack, thereby fully realizing the detection of the actual total thickness of the stack and the unit thickness corresponding to each card (thickness measurement step). By comparing the predicted total thickness with the actual total thickness and comparing the preset number of cards with the actual number of cards, it determines whether the card thickness detection results are abnormal, thus preventing errors in the number of cards issued. It achieves fully automated card issuance, stacking, thickness detection, and packaging, improving production efficiency. Attached Figure Description

[0058] Figure 1 This is a flowchart of the card thickness detection method of the present invention;

[0059] Figure 2 This is a perspective view of the card thickness detection device of the present invention;

[0060] Figure 3 This is a cross-sectional view of the assembly of the material blocking mechanism, the thickness measuring mechanism and the moving drive mechanism in the card thickness detection device of the present invention;

[0061] Figure 4 This is a schematic diagram of the thickness measuring mechanism in the card thickness detection device of the present invention;

[0062] Figure 5 This is an exploded view of the rotating card-aligning mechanism in the card thickness detection device of the present invention;

[0063] Figures 6-11 This is a schematic diagram of the detection principle of the card thickness detection device of the present invention;

[0064] Figure 12 This is a schematic diagram showing the interaction between the baffle and the stepped, staggered stacked cards in the card thickness detection device of the present invention.

[0065] Figure 13 This is a schematic diagram showing the interaction between the pressure bar and the stepped, staggered stacked cards in the card thickness detection device of the present invention.

[0066] Figure 14 This is a perspective view of the automated packaging production line of the present invention;

[0067] In the diagram: Material stop mechanism - 100; baffle - 101; n-type seat - 102; thickness measuring mechanism - 200; pressure rod - 201; sensor - 202; sliding sleeve - 203; top plate - 204; spring - 205; pressure plate - 206; magnetic seat - 207; pressure roller - 208; electromagnetic ring - 209; moving drive mechanism - 300; guide rail - 301; drive threaded rod - 302; rotating clamping mechanism - 400; H-type bracket - 401; transmission wheel - 402; transmission belt - 403; extension plate - 404; driven gear - 405; driving gear - 406. Detailed Implementation

[0068] To further understand the content of this invention, a detailed description of the invention is provided in conjunction with the accompanying drawings and embodiments. The structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the conditions under which the invention can be implemented and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation. It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein.

[0069] Example 1

[0070] like Figure 1 As shown, this embodiment of the invention provides a card thickness detection method applied to a card issuing production line, which has been disclosed in patent CN114037027B. The card thickness detection method includes the following steps:

[0071] S01: Provides multiple stacked cards, obtains the preset number of cards, and detects the actual total thickness of the stack;

[0072] Specifically, the number of card issuing devices on the card issuing production line is configured as needed. The card issuing devices are mainly used for paging and stacking cards. Each card issuing device performs a card issuing task according to the card issuing table. Each card issuing device can perform a card issuing task individually or jointly. Compared with the prior art, in this embodiment of the invention, by setting a card issuing table, the entire card issuing production line performs a card issuing task according to the card issuing table, so as to stack the cards that meet the number of card issuing tasks.

[0073] Specifically, the preset number of cards is obtained based on the card-issuing task.

[0074] S02: Push the stacked cards to form a staggered, stepped stacking state, so that a staggered thickness step is formed between adjacent cards;

[0075] S03: Detect the unit thickness of any of the thickness measuring steps, and calculate the predicted total thickness based on the unit thickness and the preset number of cards;

[0076] S04: Determine whether the difference between the predicted total thickness and the actual total thickness exceeds the error range; if no, the detection is normal; if yes, proceed to step S05.

[0077] S05: Continue to detect the unit thickness of all thickness-measuring steps and obtain the actual number of cards, and determine whether the preset number of cards is consistent with the actual number of cards;

[0078] Yes, the test was normal;

[0079] No, the test result is abnormal.

[0080] Specifically, in this embodiment of the invention, the card thickness detection result is judged to be abnormal by comparing the predicted total thickness with the actual total thickness and comparing the preset number of cards with the actual number of cards, thereby preventing the card issuance quantity error of the card issuance production line and achieving 100% accuracy.

[0081] Example 2

[0082] like Figures 2-13 As shown, an embodiment of the present invention provides a card thickness detection device, including a material blocking mechanism 100, a thickness measuring mechanism 200, a moving drive mechanism 300, a rotating card alignment mechanism 400, a lifting bracket, and a rotating roller that can press against the top of the card under the drive of the lifting bracket.

[0083] Continue to refer to Figure 2 As shown, the moving drive mechanism 300 includes a guide rail 301 and two drive threaded rods 302 rotatably mounted on the guide rail 301. The two drive threaded rods 302 independently drive the material blocking mechanism 100 and the thickness measuring mechanism 200 to move in a staggered manner along the same straight line (guide rail 301).

[0084] Continue to refer to Figure 2 As shown, the material blocking mechanism 100 includes a baffle 101 and a driving mechanism that drives the baffle 101 to swing between a horizontal station, an inclined station and a vertical station; the driving mechanism includes an n-shaped seat 102 and a driving motor (not shown in the figure) fixed on the n-shaped seat 102. The baffle 101 is rotatably installed in the groove of the n-shaped seat 102 and is driven to rotate by the driving motor. The n-shaped seat 102 is screwed onto a driving threaded rod 302 and slides inside the guide rail 301.

[0085] Continue to refer to Figure 2 and Figure 3As shown, the thickness measuring mechanism 200 includes a slide seat screwed onto another drive threaded rod 302, and a slide sleeve 203 fixed on the top of the slide seat and sleeved outside the guide rail 301. Two sets of pressure rods 201 are vertically inserted through the slide sleeve 203. A top plate 204 is fixed to the top of the pressure rod 201. A spring 205 is connected to the bottom of the top plate 204. A pressure plate 206 is connected to the bottom of the spring 205. A sensor 202 is fixed to the top of the slide sleeve 203 (two sets of pressure rods 201 correspond to two sensors 202). The pressure plate 206 is slidably sleeved on the pressure rod 201 and pressed against the top of the sensor 202. The sensor 202 is used to detect the elastic pressure of the pressure plate 206.

[0086] Furthermore, a magnetic base 207 is fixed to the bottom of the pressure rod 201, a pressure roller 208 is rotatably mounted on the bottom of the magnetic base 207, and an electromagnetic ring 209 capable of attracting the magnetic base 207 is fixed to the bottom of the sliding sleeve 203.

[0087] In summary, when using the card thickness detection device provided in this embodiment to perform thickness detection:

[0088] 1) Combining Figure 6 As can be seen, in the material blocking mechanism 100, the baffle 101 is driven by the drive mechanism to rotate and swing to a vertical position, providing multiple stacked cards and causing one side of the card to abut against the baffle 101. At the same time, the rotating roller is pressed against the top of the card under the drive of the lifting bracket.

[0089] 2) Get the preset number of cards.

[0090] 3) Combining Figure 7 It can be seen that in the material blocking mechanism 100, the baffle 101 is driven to rotate and swing to the inclined position by the drive mechanism, and the material blocking mechanism 100 is driven to move independently by the moving drive mechanism 300 (the motor drives the drive threaded rod 302 to rotate, and the drive threaded rod 302 and the n-type seat 102 are screwed together). This allows the baffle 101 to push multiple stacked cards into a stepped, staggered stacking state, so that a staggered thickness measurement step is formed between adjacent cards. Specifically, the baffle 101 at the inclined position and the stepped, staggered stacked cards form a... Figure 12 The shown is the coordination state.

[0091] 4) Combining Figure 8It can be seen that in the thickness measuring mechanism 200, after the electromagnetic ring 209 is energized, it repels the magnetic base 207, causing the pressure rod 201 and the top plate 204 to move down and compress the spring 205. The spring 205 is pressed down by the top plate 204. When the pressure roller 208 at the bottom of the magnetic base 207 touches the top of the card, the sensor 202 detects the pressure value A (two sets of pressure rods 201 correspond to two sensors 202, and both sensors 202 detect the pressure value A). The actual total thickness of the stacked cards is obtained according to the pressure value A. Specifically, based on the downward movement height of the pressure rod 201 and the top plate 204, the spring 205 performs compression of the corresponding height. The sensor 202 can detect the pressure value corresponding to different compression degrees of the spring 205. Therefore, a correspondence between the pressure value and the height of the pressure rod 201 can be established. Thus, after detecting the current pressure value, the current height of the pressure rod 201 can be known. Based on the initial height of the pressure rod 201 and the current height of the pressure rod 201, the actual total thickness of the stacked cards can be calculated.

[0092] 5) Combining Figure 9 It can be seen that the thickness measuring mechanism 200 is moved independently by the moving drive mechanism 300 (the motor drives the drive threaded rod 302 to rotate, and the drive threaded rod 302 is screw-driven with the slide). When the two sets of pressure rods 201 move to any of the thickness measuring steps, one set of pressure rods 201 abuts against the top of the thickness measuring step through the pressure roller 208, and the other set of pressure rods 201 abuts against the bottom of the thickness measuring step through the pressure roller 208. The two sensors 202 detect pressure values ​​B and C respectively. Based on pressure values ​​B and C, the current heights B and C of the two sets of pressure rods 201 are obtained respectively. The difference between the current height B and the current height C can be calculated to obtain the unit thickness of the thickness measuring step. Specifically, the two sets of pressure rods 201 and the thickness measuring step form as follows: Figure 13 The shown is the coordination state.

[0093] 6) Calculate the predicted total thickness based on the unit thickness and the preset number of cards.

[0094] 7) Determine whether the difference between the predicted total thickness and the actual total thickness exceeds the error range. If no, the detection is normal; if yes, proceed to step 8).

[0095] Specifically, each card may have some errors during production, making it difficult to guarantee that the thickness of each card is completely consistent. Therefore, an error range is preset, and when the difference between the predicted total thickness and the actual total thickness meets the error range, the test is considered normal.

[0096] 8) Combining Figure 9It can be seen that the thickness measuring mechanism 200 is driven to move independently by the moving drive mechanism 300 (the motor drives the drive threaded rod 302 to rotate, and the drive threaded rod 302 and the slide are screwed together), and the unit thickness of all thickness measuring steps is detected and the actual number of cards is obtained; specifically, the actual number of cards can be known based on the number of unit thicknesses detected (one unit thickness corresponds to one card).

[0097] 9) Determine whether the preset number of cards is consistent with the actual number of cards; if yes, the detection is normal; if no, the detection is abnormal.

[0098] Example 3

[0099] like Figures 2-13 As shown, an embodiment of the present invention provides a card thickness detection device, including a material blocking mechanism 100, a thickness measuring mechanism 200, a moving drive mechanism 300, a rotating card alignment mechanism 400, a lifting bracket, and a rotating roller that can press against the top of the card under the drive of the lifting bracket.

[0100] Continue to refer to Figure 2 and Figure 3 As shown, the material blocking mechanism 100, the thickness measuring mechanism 200, and the moving drive mechanism 300 are all the same as those in Embodiment 2 above.

[0101] Continue to refer to Figure 4 As shown, the rotating card-aligning mechanism 400 includes a mounting frame and an H-shaped bracket 401 rotatably mounted on the mounting frame. Each of the four ends of the H-shaped bracket 401 is rotatably fitted with a transmission wheel 402, and each of the four transmission wheels 402 is fitted with a transmission belt 403. The rotating card-aligning mechanism 400 abuts against the side of the card via the transmission belts 403. One of the four ends of the H-shaped bracket 401 includes a driving end, and an extension plate 404 is fixed to the driving end. One of the four transmission wheels 402 includes a driving wheel, on which a driven gear 405 is fitted and fixed. A driving gear 406 capable of meshing with the driven gear is mounted on the extension plate 404.

[0102] In summary, when using the card thickness detection device provided in this embodiment to perform thickness detection:

[0103] Including steps 1) to 9) disclosed in Embodiment 2 above;

[0104] Also includes:

[0105] 10) such as Figure 10As shown, after the test is completed, the electromagnetic ring 209 in the thickness measuring mechanism 200 is de-energized, and the pressure rod 201 and the top plate 204 move upward and reset under the rebound of the spring 205. The motor on the mounting bracket drives the H-shaped bracket 401 to rotate, thereby causing the overall card clamping mechanism 400 to swing until the transmission belt 403 presses against the side of the card.

[0106] 11) such as Figure 11 As shown, the moving drive mechanism 300 drives the material blocking mechanism 100 to move and reset (the motor drives the drive threaded rod 302 to rotate, and the drive threaded rod 302 and the n-type seat 102 are screwed together). At the same time, the material blocking mechanism 100 drives the baffle 101 to rotate and swing to the vertical position through the drive mechanism. The motor installed on the extension plate 404 is started, and the transmission wheel 402 is driven to rotate through the meshing drive gear 406 and driven gear 405, which in turn drives the transmission belt 403 to perform card alignment operation on multiple cards stacked in a stepped staggered manner.

[0107] Example 4

[0108] This invention provides a smart terminal, which can be a computer, mobile phone, tablet, etc., and is applied to the card thickness detection device. The smart terminal includes:

[0109] The acquisition module is used to acquire the preset number of cards in a staggered, stepped stack.

[0110] The data acquisition module is used to acquire the actual total thickness of multiple cards stacked in a staggered, stepped manner, as well as the unit thickness of the staggered thickness measurement step formed between two adjacent cards.

[0111] The calculation module is used to calculate the predicted total thickness based on the unit thickness of any of the thickness measuring steps and the preset number of cards;

[0112] The first judgment module is used to determine whether the difference between the predicted total thickness and the actual total thickness exceeds the error range;

[0113] The processing module is activated in response to the judgment result of the first judgment module, and is used to determine the actual number of cards based on the thickness of all units collected by the acquisition module.

[0114] The second judgment module is used to determine whether the preset number of cards is consistent with the actual number of cards.

[0115] Specifically, in this embodiment of the invention, the card thickness detection result is judged to be abnormal by comparing the predicted total thickness with the actual total thickness and comparing the preset number of cards with the actual number of cards, thereby preventing the card issuance quantity error of the card issuance production line and achieving 100% accuracy.

[0116] Example 5

[0117] This invention provides a smart terminal, including a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of the method described in Embodiment 1 above.

[0118] Example 6

[0119] This invention provides a computer-readable storage medium storing a card thickness detection program, which, when executed by a processor, implements the steps of the method described in Embodiment 1 above.

[0120] Example 7

[0121] Combination Figure 14 As can be seen, embodiments of the present invention provide an automated packaging production line, comprising:

[0122] A conveyor belt 1 is arranged along a first direction; the conveyor belt 1 is driven to continuously cycle by a drive mechanism (not shown in the figure);

[0123] At least one card issuing device 2 is disposed above the conveyor belt 1; the card issuing device 2 is a fixed card issuing device or a rotary card issuing device, and the card issuing device 2 stacks the cards in pages on the conveyor belt 1 for conveying. The card issuing device is prior art, disclosed in patent CN209514654U, and will not be elaborated here;

[0124] Card thickness detection device A (disclosed in Embodiments 2 and 3) is disposed above the conveyor belt 1, and the conveyor belt 1 has a gap that allows the baffle to be inserted (as in this invention). Figure 2 , Figures 6-11 (As shown); Specifically, the card thickness detection device uses a blocking mechanism 100, a thickness measuring mechanism 200, and a moving drive mechanism 300 to actually detect the card thickness and number of cards. If the difference between the predicted total thickness and the actual total thickness is within the error range, packaging continues; if the difference exceeds the error range and the preset card number matches the actual card number, packaging continues; if the difference exceeds the error range and the preset card number does not match the actual card number, packaging stops. This prevents card quantity errors and ensures 100% accuracy. After detection, the card thickness detection device uses a rotating card alignment mechanism 400 to align the stacked cards, ensuring neat card stacking and preventing damage to cards due to resistance during alignment.

[0125] The intelligent terminal 3 is used to control the automatic packaging production line; the intelligent terminal 3 can be a computer, mobile phone, tablet, etc. In this embodiment, the intelligent terminal 3 is wired to the card thickness detection device and the card issuing device 2.

[0126] A visual inspection device 4 is disposed on the card issuing device 2. The visual inspection device 4 can be disposed as needed, either on one of the card issuing devices 2 or on all of the card issuing devices 2. In this embodiment, the visual inspection device includes a CCD camera, which is existing technology and will not be described in detail here.

[0127] The fully automatic packaging equipment 5 is located downstream of the conveyor belt 1. Specifically, after the cards are sorted and arranged, each combination of cards constitutes a set of cards. The fully automatic packaging equipment 5 automates the packaging of this set of cards, achieving fully automatic paging, stacking, thickness detection, and packaging, further improving production efficiency. The fully automatic packaging equipment 5 is prior art, disclosed in patent CN210942389U, and will not be elaborated upon here.

[0128] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for detecting card thickness, characterized in that, include: Offers multiple stacked cards; Obtain the preset number of cards and detect the actual total thickness of the stack; Push the stacked cards to form a stepped, staggered stacking state, so that there is a staggered thickness step between adjacent cards; The unit thickness of any of the thickness-measuring steps is detected, and the predicted total thickness is calculated based on the unit thickness and the preset number of cards. Determine whether the difference between the predicted total thickness and the actual total thickness exceeds the error range; No, the test was normal; Yes, continue to check the unit thickness of all thickness-measuring steps and obtain the actual number of cards; Determine whether the preset number of cards matches the actual number of cards; Yes, the test was normal; No, the test result is abnormal.

2. A card thickness detection device for implementing the card thickness detection method as described in claim 1, characterized in that, include: The material blocking mechanism (100) includes a baffle (101) and a drive mechanism for driving the baffle (101) to swing between a horizontal station, an inclined station and a vertical station. Thickness measuring mechanism (200) includes a pressure bar (201) that can be elastically pressed against the top of the card and a sensor (202) for detecting the elastic pressure of the pressure bar (201); when the pressure bar (201) is pressed against the top of the card, the sensor (202) detects the pressure value of the pressure bar (201), and according to the correspondence between the pressure value and the height of the pressure bar (201), the current height of the pressure bar (201) and the actual total thickness of the stacked cards are known; The moving drive mechanism (300) independently drives the material blocking mechanism (100) and the thickness measuring mechanism (200) to move in a staggered manner along the same straight line. When the baffle (101) is driven to rotate and swing to the inclined position by the drive mechanism, the material blocking mechanism (100) is driven to move independently by the moving drive mechanism (300) so that the baffle (101) can push the stacked cards to form a stepped staggered stacking state, and a staggered thickness measuring step is formed between two adjacent cards. The thickness measuring mechanism (200) is driven to move independently by the moving drive mechanism (300) so that the thickness measuring mechanism (200) can detect the unit thickness of any of the thickness measuring steps. Two sets of rotating card-aligning mechanisms (400) are symmetrically distributed on both sides of the moving drive mechanism (300). The rotating card-aligning mechanisms (400) perform the pressing operation on the side of the card and the card-aligning operation of multiple cards by rotating.

3. The card thickness detection device according to claim 2, characterized in that: The moving drive mechanism (300) includes a guide rail (301) and two drive threaded rods (302) rotatably mounted on the guide rail (301). The two drive threaded rods (302) respectively drive the material stop mechanism (100) and the thickness measuring mechanism (200) to move along the guide rail (301).

4. The card thickness detection device according to claim 3, characterized in that: The driving mechanism includes an n-shaped seat (102) and a drive motor fixed on the n-shaped seat (102). The baffle (101) is rotatably installed in the groove of the n-shaped seat (102) and driven to rotate by the drive motor. The n-shaped seat (102) is screwed onto a drive threaded rod (302) and slides inside the guide rail (301).

5. A card thickness detection device according to claim 3 or 4, characterized in that: The thickness measuring mechanism (200) includes a slide seat screwed onto another drive threaded rod (302) and a slide sleeve (203) fixed on the top of the slide seat and sleeved outside the guide rail (301). The pressure rod (201) vertically penetrates the slide sleeve (203) and the sensor (202) is fixed on the top of the slide sleeve (203).

6. The card thickness detection device according to claim 5, characterized in that: The thickness measuring mechanism (200) also includes a top plate (204), a spring (205) and a pressure plate (206). The top plate (204) is fixed to the top of the pressure rod (201). The pressure plate (206) is slidably sleeved on the pressure rod (201) and pressed against the top of the sensor (202). The spring (205) is connected between the top plate (204) and the pressure plate (206).

7. The card thickness detection device according to claim 6, characterized in that: The thickness measuring mechanism (200) also includes a magnetic base (207) fixed to the bottom of the pressure rod (201) and a pressure roller (208) rotatably mounted on the bottom of the magnetic base (207). The bottom of the sliding sleeve (203) is fixed with an electromagnetic ring (209) that can attract the magnetic base (207).

8. The card thickness detection device according to claim 2, characterized in that: The rotating card-aligning mechanism (400) includes a mounting frame and an H-shaped bracket (401) rotatably mounted on the mounting frame. Each of the four ends of the H-shaped bracket (401) is rotatably fitted with a transmission wheel (402), and the four transmission wheels (402) are fitted with a transmission belt (403). The rotating card-aligning mechanism (400) abuts against the side of the card through the transmission belt (403).

9. The card thickness detection device according to claim 8, characterized in that: The H-shaped bracket (401) includes a driving end among its four ends, and an extension plate (404) is fixed on the driving end; the four transmission wheels (402) include a driving wheel, a driven gear (405) is sleeved and fixed on the driving wheel, and a driving gear (406) capable of meshing with the driven gear is installed on the extension plate (404).

10. An automated packaging production line comprising the card thickness detection device according to any one of claims 2-9, characterized in that, include: A conveyor belt positioned along a first direction; At least one card issuing device is positioned above the conveyor belt; A card thickness detection device is disposed above the conveyor belt, and a gap is formed on the conveyor belt that allows the baffle (101) to be inserted. The intelligent terminal is used to control the automated packaging production line; A visual inspection device is installed on the card issuing device; A fully automatic packaging device is located downstream of the conveyor belt.

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