Paper card combined processing equipment for poker cards

Abstract

The utility model relates to paper card composite processing equipment for poker, a paper card at least comprises two layers of base paper, and the processing equipment comprises a composite unit; the drying unit comprises a drying box, and the drying box is provided with a drying channel for the composite paper cards processed by the compounding unit to pass through; the calendaring unit comprises a calendaring roller assembly; the state adjusting unit is arranged between the drying unit and the calendaring unit in the conveying direction of the composite paper cards, the state adjusting unit comprises a heating cylinder capable of rotating around the axis of the state adjusting unit and a tensioning belt assembly, the composite paper cards can be wound on the heating cylinder, the heating cylinder is used for heating the composite paper cards, and the tensioning belt assembly is used for tensioning the composite paper cards. The tensioning belt assembly is arranged outside a partial area of the outer peripheral wall of the heating cylinder. The state adjusting unit is arranged between the drying unit and the calendaring unit, the state adjusting unit comprises the heating cylinder and the tensioning belt assembly, the composite paper card can be wound on the heating cylinder, the heating cylinder is used for heating the composite paper card, and therefore the water content of the composite paper card is accurately controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of poker card processing equipment, in particular to a poker paper card composite processing equipment. Background Art

[0002] In order to increase the number of times playing cards are used and prevent cheating due to light transmission, the quality requirements for playing cards are relatively high, mainly in terms of the number of folding resistance, opacity, and stiffness.

[0003] Most domestically produced playing cards are produced by composite production, that is, two-layer, three-layer or multi-layer composites are made using composite machines. The production process is to first roll the base paper with adhesive, then roll it to form a composite paperboard, and then dry and calender it to form the finished card and roll it up. Since there are corresponding standards for the moisture content and thickness of the finished card, and the adjustment of the moisture content of the card is basically achieved by controlling the corresponding process parameters of the drying unit (such as temperature and drying time), but due to the low solid content of the adhesive and the limited control accuracy of the relevant parameters of the drying unit, the finished card is prone to warping and unevenness after the card is dried and directly calendered.

[0004] Therefore, the existing poker paper card composite processing equipment needs to be further improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a poker paper card composite processing device which can effectively improve the problems of warping and unevenness of finished card products in view of the current status of the prior art.

[0006] The utility model solves the above technical problems by adopting a technical solution: a poker paper card composite processing equipment, the paper card comprises at least two layers of base paper, wherein the two layers of base paper that can be composited together are respectively recorded as a first base paper and a second base paper, and the processing equipment comprises:

[0007] A composite unit, comprising a composite roller assembly for the first base paper and the second base paper to pass through, the composite roller assembly being used to extrude and composite the first base paper and the second base paper after being coated with glue to form a composite paper card;

[0008] A drying unit, comprising a drying box having a drying passage for the composite paper card processed by the composite unit to pass through;

[0009] A calendering unit, comprising a calendering roller assembly, for calendering the composite paper card after being dried by the drying unit;

[0010] A state adjustment unit is arranged between the drying unit and the calendering unit along the conveying direction of the composite paper card. The state adjustment unit includes a heating cylinder that can rotate around its own axis and a tension belt assembly. The heating cylinder can be used for the composite paper card to be wound thereon and heat the composite paper card. The tension belt assembly is arranged outside a partial area of ​​the outer peripheral wall of the heating cylinder, so that the composite paper card can be pressed against a partial area of ​​the outer peripheral wall of the heating cylinder.

[0011] In order to evenly heat both sides of the composite paper card and further improve its flatness, the heating cylinder of the state adjustment unit includes two heating cylinders arranged in sequence in the up and down directions, the heating cylinder located at the bottom of the two heating cylinders is recorded as the first heating cylinder, and the heating cylinder located at the top is recorded as the second heating cylinder, and the tensioning belt assembly of the state adjustment unit includes two groups, namely a first tensioning belt assembly for pressing the first side of the composite paper card against the lower side area of ​​the outer peripheral wall of the first heating cylinder, and a second tensioning belt assembly for pressing the other side of the composite paper card against the lower side area of ​​the outer peripheral wall of the second heating cylinder.

[0012] In order to facilitate the feeding and discharging of paper cards in the state adjustment unit and to reduce the floor space of the state adjustment unit as much as possible, the first heating tube and the second heating tube are staggered in the up and down directions, and the distance between the axis of the first heating tube and the axis of the second heating tube in the front and back directions is less than the sum of the radius of the first heating tube and the radius of the second heating tube.

[0013] In order to ensure the heating effect on the composite paper card, the outer diameter of the first heating tube and the second heating tube is in the range of 1000 mm to 3000 mm. Preferably, the outer diameter of the first heating tube and the second heating tube is 1800 mm.

[0014] In order to make the composite paper card to be heated and adjusted fit more evenly on the outer peripheral wall of the heating cylinder, the tension belt assembly includes a first tension roller and a second tension roller which are arranged in sequence along the circumference of the heating cylinder and are both arranged adjacent to the outer wall surface of the heating cylinder, and a tension belt wound between the first tension roller and the second tension roller. The extension directions of the first tension roller and the second tension roller are consistent with the axial direction of the heating cylinder.

[0015] The tension belt can be made of various heat-resistant tension belt materials in the prior art. Preferably, the tension belt is a nylon belt.

[0016] In order to maximize the contact area between the tensioning belt and the composite paper card, the angle formed by the first tensioning roller and the second tensioning roller relative to the axis of the heating cylinder is recorded as A, wherein the value range of A is: 170°≤A≤270°, preferably, the value of A is 220°.

[0017] In order to facilitate flexible adjustment of the tension of the tension belt, the tension belt assembly also includes at least one third tensioning roller away from the heating tube, and the tension belt is wound between the first tensioning roller, the second tensioning roller and each third tensioning roller, and at least one third tensioning roller has an adjustable distance relative to the heating tube to change the force of the tension belt acting on the outer peripheral wall of the heating tube.

[0018] In order to reasonably control the corresponding parameters of the state adjustment unit, so that the moisture content and flatness of the finished paper card are more controllable, it also includes:

[0019] The moisture detection device is arranged downstream of the drying unit along the conveying direction of the composite paper card, and is used to detect the moisture of the composite paper card after being processed by the drying unit.

[0020] In order to improve the drying effect, at least two rows of conveyor roller assemblies arranged in sequence in the up-down direction are provided in the drying box, and each conveyor roller assembly includes a plurality of conveyor rollers arranged in sequence in the front-to-back direction, and the height of each conveyor roller in each conveyor roller assembly gradually decreases from the middle position to the front and rear sides, so that the paper card wound on the conveyor roller assembly is an arched structure that bulges upward in the front-to-back direction. Considering the gravity factor of the paper card, the "arched arrangement" of the conveyor roller assembly also ensures that the tension on the upper and lower sides of the composite paper card is more uniform to a certain extent, and ensures the flatness of the composite paper card during the drying process.

[0021] Compared with the prior art, the advantages of the utility model are as follows: a state adjustment unit is arranged between the drying unit and the calendering unit, and the state adjustment unit includes a heating cylinder and a tensioning belt assembly. The heating cylinder can be used for the composite paper card to be wound thereon, and the composite paper card is heated, so as to accurately control the moisture content of the composite paper card. On this basis, the composite paper card is pressed against a partial area of ​​the outer peripheral wall of the heating cylinder through the tensioning belt assembly. On the one hand, the composite paper card can be heated evenly. On the other hand, the tensioning belt assembly and the outer peripheral wall of the heating cylinder are an arc-shaped fitting structure. After the composite paper card is squeezed through the arc-shaped channel in which the tensioning belt assembly and the outer peripheral wall of the heating cylinder are tightly fitted, the flatness of the composite paper card is effectively improved, and the problem of warping is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic flow chart of a poker paper card composite processing device according to an embodiment of the utility model;

[0023] Figure 2 This is a flow chart of a poker paper card composite processing device according to an embodiment of the utility model;

[0024] Figure 3 This is a flow chart of the unwinding unit and the compounding unit of the poker paper card compounding equipment according to an embodiment of the utility model;

[0025] Figure 4 This is a flow chart of a drying unit of a poker paper card composite processing device according to an embodiment of the utility model;

[0026] Figure 5 This is a flow chart of the state adjustment unit, calendering unit and winding unit of the poker paper card composite processing equipment according to an embodiment of the utility model;

[0027] Figure 6 This is a flow chart of the state adjustment unit and the calendering unit of the poker paper card composite processing equipment according to an embodiment of the utility model. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0030] Figure 1-Figure 6 A preferred embodiment of the composite processing equipment for poker paper cards of the utility model is shown. The poker paper cards include at least two layers of base paper. This embodiment takes the composite processing equipment for poker paper cards as an example of three layers of base paper. The three layers of base paper are respectively recorded as the first base paper a, the second base paper b and the third base paper c. The composite processing equipment for poker paper cards is arranged in the forward direction of the paper cards (see Figure 2-Figure 6 The device includes an unwinding unit 10, a compounding unit 20, a drying unit 30, a moisture detection device 71, a state adjustment unit 40, a calendering unit 50, a thickness detection device 72 and a winding unit 60 in sequence.

[0031] The unwinding unit 10 includes a first unwinding shaft 11 for winding the first base paper a, a second unwinding shaft 12 for winding the second base paper b, and a third unwinding shaft 13 for winding the third base paper c. The unwinding unit 10 also includes a traction device for driving the corresponding unwinding shaft to release the base paper and a correction system for correcting the deviation of the paper during the release process. The unwinding unit 10 of this embodiment and the working process of releasing the paper are both prior arts and will not be described in detail here.

[0032] The compound unit 20 includes a first coating roller 21, a second coating roller 22 and a compound roller assembly 23. The first base paper a released by the first unwinding shaft 11 is sent to the compound roller assembly 23 after being glued by the first coating roller 21. Similarly, the third base paper c released by the second unwinding shaft 12 is sent to the compound roller assembly 23 after being glued by the second coating roller 22. When entering the paper passage between the compound roller assembly 23, the first base paper a and the third base paper c after being glued are respectively located on both sides of the second base paper b. After passing through the compound roller assembly 23, they are squeezed and compounded to form a composite paper card d. The compound roller assembly 23 adopts a double-roller rolling structure, generally including a steel roller and a rubber roller. The steel roller is an active roller, and its surface is hard chrome plated and ultra-finely ground, and the roller surface runout accuracy is controlled to be less than 0.03mm. The rubber roller is controlled and adjusted by a pneumatic electromagnetic reversing valve, and the pressure is adjustable. The clutch and pressure are adjusted by pneumatic components. The tightness of the pressing between the rubber roller and the steel roller can be fine-tuned by means of a screw rod. The composite roller assembly 23 and its working process of this embodiment are also prior art and will not be described in detail here.

[0033] The drying unit 30 of the present embodiment includes a drying box 31 and a conveying roller assembly 32 arranged in the drying box 31. The temperature adjustment range in the drying box 31 is: 50-150°C, and a centrifugal fan hot air circulation is adopted. Specifically, the drying box 31 of the present embodiment has three layers of drying channels arranged sequentially from top to bottom and reciprocating in the front-to-back direction. A group of conveying roller assemblies 32 are arranged in each drying channel, and each conveying roller assembly 32 includes a plurality of conveying rollers 320 arranged sequentially and spaced in the front-to-back direction. More specifically, the height of each conveying roller 320 in each conveying roller assembly 32 is gradually reduced from the middle position to the front and rear sides, so that the paper card wound on the conveying roller assembly 32 is an upwardly protruding arch structure in the front-to-back direction. All conveying rollers 320 in the drying box 31 are active rollers driven by a motor, and the conveying speed is coordinated and consistent. More specifically, the working temperatures of the three drying channels are also different. The working temperature of the drying channel on the bottom layer is 55-65°C, the working temperature of the drying channel on the middle layer is 65-95°C, and the working temperature of the drying channel on the top layer is 95-120°C. The three drying channels can be divided into temperature zones according to the transmission direction of the paper cards, such as being divided into three temperature intervals in an increasing temperature manner.

[0034] Along the conveying direction of the composite paper card d, the moisture detection device 71 is arranged downstream of the drying box 31, that is, at the paper card outlet of the drying box 31, for detecting the moisture of the composite paper card d after being processed by the drying unit 30. The moisture detection device 71 can adopt various moisture detectors capable of detecting the moisture of paper in the prior art. The moisture detector is often equipped with an infrared or microwave type moisture detection sensor, such as the moisture detection sensor used in the QCS system of S-TEC, ABB, and Honeywell, and the production process is automatically controlled by the size of the detection value. In this embodiment, according to the size of the detection value of the moisture detection device 71, on the one hand, the drying parameters of the drying unit 30 can be controlled, and on the other hand, the corresponding parameters of the downstream state adjustment unit 40 can also be reasonably controlled, so that the moisture content, flatness, etc. of the finished paper card are more controllable.

[0035] Along the conveying direction of the composite paper card d, the state-adjusting unit 40 is arranged downstream of the drying unit 30, specifically, after the above-mentioned moisture detection device 71. The state-adjusting unit 40 includes a bracket 400 and a heating cylinder and a tension belt assembly arranged on the bracket 400. The heating cylinder is rotatably arranged on the bracket 400 in a manner that it can rotate around its own axis, and the heating cylinder can be provided with the composite paper card d to be wound around it and heat the composite paper card d. The tension belt assembly is arranged outside a partial area of ​​the outer peripheral wall of the heating cylinder, so that the composite paper card d can be tightly pressed against a partial area of ​​the outer peripheral wall of the heating cylinder, so that the composite paper card d can be evenly heated, thereby ensuring that the moisture adjustment of the composite paper card d in the state-adjusting step is more controllable.

[0036] The first heating cylinder 41a and the second heating cylinder 41b can be driven to rotate by a driving device, and the driving device can be a motor, and the output shaft of the motor is connected to the first heating cylinder 41a or the second heating cylinder 41b. The heating cylinder can adopt a drying cylinder structure that uses steam to provide heat in the prior art, and its working process and principle are not described in detail.

[0037] The outer diameters of the first heating tube 41a and the second heating tube 41b of the state-adjusting unit 40 of this embodiment range from 1000 mm to 3000 mm, preferably 1800 mm. The first heating tube 41a and the second heating tube 41b are staggered in the vertical direction, and the distance D between the axis of the first heating tube 41a and the axis of the second heating tube 41b in the front-to-back direction is smaller than the sum of the radius of the first heating tube 41a and the radius of the second heating tube 41b. The purpose of such a setting is to facilitate the feeding and discharging of paper jams in the state-adjusting unit 40 and to reduce the floor space of the state-adjusting unit 40 as much as possible.

[0038] Since the composite paper card d in this embodiment is mostly a three-layer base paper composite structure, in order to make both sides of the composite paper card d be heated evenly and further improve its flatness, the heating cylinder of the state adjustment unit 40 in this embodiment includes two heating cylinders arranged in sequence in the upper and lower directions, and the heating cylinder located at the lower side of the two heating cylinders is recorded as the first heating cylinder 41a, and the heating cylinder located at the upper side is recorded as the second heating cylinder 41b. The tension belt assembly also includes two groups, namely, a first tension belt assembly 42a for pressing the first side of the composite paper card d against the lower side area of ​​the outer peripheral wall of the first heating cylinder 41a, and a second tension belt assembly 42b for pressing the other side of the composite paper card d against the lower side area of ​​the outer peripheral wall of the second heating cylinder 41b.

[0039] The first tensioning belt assembly 42a and the second tensioning belt assembly 42b mentioned above both include a first tensioning roller 421, a second tensioning roller 422, at least one third tensioning roller 423, and a tensioning belt 424 wound between the first tensioning roller 421, the second tensioning roller 422, and each third tensioning roller 423. The extension directions of the first tensioning roller 421, the second tensioning roller 422, and the third tensioning roller 423 are all consistent with the axial direction of the heating tube. The first tensioning roller 421 and the second tensioning roller 422 are sequentially arranged along the circumference of the heating tube and are arranged adjacent to the outer wall surface of the heating tube, while each third tensioning roller 423 is arranged relatively at a side away from the heating tube, wherein the distance of at least one third tensioning roller 423 relative to the heating tube is adjustable, so that the tension of the tensioning belt 424 can be changed, that is, the force of the tensioning belt 424 acting on the outer peripheral wall of the heating tube can be adjusted, and the tension of the tensioning belt 424 can be detected by a tension sensor. More specifically, the distance between the third tensioning roller 423 and the heating cylinder can be adjusted manually in a conventional manner, such as setting the third tensioning roller 423 on a screw slider device and manually adjusting the screw to drive the third tensioning roller 423 to move. Figure 6 As shown, the first tensioning belt assembly 42a shows two third tensioning rollers 423, and the second tensioning belt assembly 42b shows three third tensioning rollers 423. In order to maximize the contact area between the tensioning belt 424 and the composite paper card d, the angle formed by the first tensioning roller 421 and the second tensioning roller 422 relative to the axis of the heating cylinder is recorded as A, wherein the value range of A is: 170°≤A≤270°. Preferably, in order to adapt to the spatial arrangement structure of the first heating cylinder 41a and the second heating cylinder 41b and avoid interference with the transmission process of the composite paper card d, the angle A formed by the first tensioning roller 421 and the second tensioning roller 422 of the first tensioning assembly relative to the axis of the heating cylinder is 180°, and the angle A formed by the first tensioning roller 421 and the second tensioning roller 422 of the second tensioning assembly relative to the axis of the heating cylinder is 240°.

[0040] The tensioning belt 424 of this embodiment is preferably selected to have an air permeability of 8000±50m 3 / m 2 . The material of h is preferably a nylon belt. The width of the nylon belt is basically the same as the width of the composite paper card d. The low-permeability nylon belt makes it difficult for the composite paper card to float during operation, and the tension belt has strong operating stability. The tension belt will be stretched to a certain extent during operation, especially when the polyester mesh has a greater elongation than canvas. Therefore, the tension of the dry mesh should be controlled within the following range: 2KN / m~3KN / m, so that the composite paper card fits tightly to the surface of the heating cylinder, and its flatness is effectively improved, effectively reducing the problem of warping. Of course, the tension of the nylon belt cannot be too large, otherwise it will form a mesh mark on the composite paper card, resulting in paper defects.

[0041] In this embodiment, the temperature of the outer wall of the first heating tube 41a and the second heating tube 41b is controlled in the following range: 100°C-130°C to avoid the problem of paper card sticking to the heating tubes due to excessive temperature. The two heating tubes can adjust the temperature of the heating tube surface separately, thereby reducing the difference in moisture content on the two sides of the composite paper card, accurately adjusting the moisture content of the composite paper card, and thus adjusting the warping of the paper web.

[0042] The calendering unit 50 includes a calendering roller assembly 51. The calendering unit 50 of this embodiment includes two groups of calendering rollers arranged in sequence along the conveying direction of the composite paper card d. The calendering roller assembly 51 can adopt the calendering roller structure in the prior art, which generally includes two hard calendering rollers arranged opposite to each other. The composite paper card d processed by the state adjustment unit 40 enters the two hard calendering rollers for calendering.

[0043] Along the conveying direction of the composite paper card d, a thickness detection device 72 for detecting the thickness of the paper card after the calendering process is arranged downstream of the calendering unit 50. The thickness detection device 72 can adopt a thickness detection instrument for detecting the thickness of the paper card in the prior art, such as an infrared sensor. The thickness detection principle and process of the paper card are all prior art and will not be described in detail here.

[0044] The winding unit 60 includes a winding shaft 61 and a driving motor for driving the winding shaft 61 to rotate. The winding shaft 61 is used to receive the composite paper card d after calendering to realize the material receiving and winding. Like the conventional winding device in the prior art, the winding unit 60 of this embodiment also includes a material receiving pressure roller, a cutter, a floating roller and other components. The material receiving pressure roller adopts a pneumatic rubber pressure roller, which is pressed on the surface of the wound paper card, and its level and pressure are adjustable. The cutter is used to cut the material after the material is received. The tension of the floating roller can be automatically controlled by a PLC programming controller.

[0045] The composite processing method of poker paper cards in this embodiment comprises the following steps:

[0046] If the paper card is a two-layer base paper, the two-layer base paper has the following steps: after gluing, the first base paper a is extruded and compounded with the second base paper b through a compound roller assembly 23 to form a compound paper card d.

[0047] If the paper card is a three-layer base paper, the three-layer base paper gluing and laminating steps are as follows: the first base paper a and the third base paper c are located on both sides of the second base paper b, and after gluing, the first base paper a and the third base paper c are extruded and laminated with the second base paper b through the laminating roller assembly 23 to form a composite paper card d;

[0048] Drying step: the composite paper card d after being extruded and composited by the composite roller assembly 23 enters the drying channel of the drying box 31 for drying treatment, and the drying temperature is controlled at: 50°C-120°C;

[0049] In the first detection step, the moisture content of the composite paper card d after being processed by the drying box 31 is detected by the moisture detection device 71. Specifically, in this embodiment, the moisture content of the composite paper card d after being processed by the drying box 31 is controlled within the following range: 8%-10%.

[0050] Conditioning step: the composite paper card d treated by the drying box 31 is sequentially wound around the lower side area of ​​the outer peripheral wall of the first heating tube 41a and the upper side area of ​​the outer peripheral wall of the second heating tube 41b, so that one side of the composite paper card d is in contact with the outer peripheral wall of the first heating tube 41a, and the other side of the composite paper card d is in contact with the outer peripheral wall of the second heating tube 41b, and sequentially passes between the first tensioning belt assembly 42a and the corresponding part area of ​​the outer peripheral wall of the first heating tube 41a, and between the second tensioning belt assembly 42b and the corresponding part area of ​​the outer peripheral wall of the second heating tube 41b, and the first tensioning belt assembly 42a wraps the composite paper card d around the first heating tube 41a. On the outer peripheral wall of the heating cylinder 41a, the second tensioning belt assembly 42b wraps the composite paper card d on the outer peripheral wall of the second heating cylinder 41b, the first heating cylinder 41a and the second heating cylinder 41b heat the composite paper card d, the tension of the tensioning belt 424 of the first tensioning belt assembly 42a is controlled within the following range: 2KN / m~3KN / m, the tension of the tensioning belt 424 of the second tensioning belt assembly 42b is controlled within the following range: 2KN / m~3KN / m, the surface temperature of the first heating cylinder 41a is controlled within the range of 100℃-130℃, and the surface temperature of the second heating cylinder 41b is controlled within the range of 100℃-130℃.

[0051] Calendering step: the composite paper card d processed by the state adjustment unit 40 is calendered by the calendering roller assembly 51;

[0052] In the second detection step, the thickness of the composite paper card d after the calendering treatment is detected by the thickness detection device 72 to determine whether the thickness of the composite paper card d after the calendering treatment meets the requirements. Generally, the thickness of the composite paper card d after the calendering treatment is 0.28mm-0.32mm.

[0053] An important utility model point of this embodiment is that the moisture content of the composite paper card d after being processed by the drying box 31 is controlled within the range of 8%-10%, and then the composite paper card d is processed by the state-adjusting unit 40. The moisture content of the composite paper card d after being processed by the state-adjusting unit 40 is about 6%. Compared with the composite paper card in the prior art that is "directly calendered after being processed by the drying unit", the moisture content of the composite paper card d after being processed by the drying box 31 in this embodiment is kept within a relatively high range (the moisture content of the composite paper card d after being processed by the drying box 31 in the prior art is relatively low, basically equivalent to the moisture content of the finished paper card). On the one hand, it is necessary to reserve the dehydration margin of the heating loss during the process of the state-adjusting unit 440 to avoid the composite paper card d from failing to reach the moisture content standard required by the finished paper card due to further dehydration during the state-adjusting process; on the other hand, it is also ensured that the composite paper card d has sufficient shaping ability to meet the state-adjusting needs during the state-adjusting process of heating and extrusion by the heating cylinder and the tension belt assembly. Of course, considering that the composite paper card d is pressed against the outer wall of the heating cylinder by the tension belt during the conditioning process in the conditioning unit, the moisture content of the composite paper card d after being treated in the drying box 31 cannot be too high, otherwise (if the moisture content is greater than 10%) the composite paper card will not be able to pass smoothly between the heating cylinder and the tension belt assembly, and will be easily damaged.

[0054] The composite processing device for poker paper cards of this embodiment is provided with a conditioning unit 40 between the drying unit 30 and the calendering unit 50. After the composite paper card d is subjected to preliminary drying treatment by the drying unit 30, it is heated and conditioned by the conditioning unit 40. The conditioning unit 40 includes a heating cylinder and a tensioning belt assembly. The heating cylinder can be wound around the composite paper card d and heats the composite paper card d, thereby accurately controlling the moisture content of the composite paper card d. On this basis, the composite paper card d is pressed against a part of the outer peripheral wall of the heating cylinder by the tensioning belt assembly, which can heat the composite paper card d evenly on one hand, and on the other hand, the tensioning belt assembly and the outer peripheral wall of the heating cylinder are arc-shaped fitting structures. After the composite paper card d is squeezed through the arc-shaped channel where the tensioning belt assembly and the outer peripheral wall of the heating cylinder are tightly fitted, its flatness is effectively improved, and the warping problem is effectively reduced.

Claims

1. A composite processing device for playing cards, the paper card comprises at least two layers of base paper, in, The two layers of base paper that can be combined together are respectively recorded as the first base paper (a) and the second base paper (b), and the processing equipment includes: A compounding unit (20) comprises a compounding roller assembly (23) through which the first base paper (a) and the second base paper (b) pass, and the compounding roller assembly (23) is used to extrude and compound the first base paper (a) and the second base paper (b) after coating the glue to form a compound paper card (d); A drying unit (30) comprises a drying box (31), wherein the drying box (31) has a drying passage for the composite paper card (d) processed by the composite unit (20) to pass through; A calendering unit (50), comprising a calendering roller assembly (51), used for calendering the composite paper card (d) after being dried by the drying unit (30); The invention is characterized in that it also includes: A state adjustment unit (40) is arranged between the drying unit (30) and the calendering unit (50) along the conveying direction of the composite paper card (d). The state adjustment unit (40) comprises a heating cylinder that can rotate around its own axis and a tension belt assembly. The heating cylinder can be used for the composite paper card (d) to be wound around it and heat the composite paper card (d). The tension belt assembly is arranged outside a partial area of ​​the outer peripheral wall of the heating cylinder, so that the composite paper card (d) can be pressed against a partial area of ​​the outer peripheral wall of the heating cylinder.

2. The poker paper card composite processing equipment according to claim 1, Features: The heating cylinder of the state adjustment unit (40) comprises two heating cylinders arranged in sequence in the up-down direction, the heating cylinder located at the bottom of the two heating cylinders is recorded as a first heating cylinder (41a), and the heating cylinder located at the top is recorded as a second heating cylinder (41b), and the tension belt assembly of the state adjustment unit (40) comprises two groups, namely a first tension belt assembly (42a) for pressing the first side surface of the composite paper card (d) against the lower side area of ​​the outer peripheral wall of the first heating cylinder (41a) and a second tension belt assembly (42b) for pressing the other side of the composite paper card (d) against the lower side area of ​​the outer peripheral wall of the second heating cylinder (41b).

3. The poker paper card composite processing equipment according to claim 2, Features: The first heating tube (41a) and the second heating tube (41b) are staggered in the up-down direction, and the distance (D) between the axis of the first heating tube (41a) and the axis of the second heating tube (41b) in the front-to-back direction is smaller than the sum of the radius of the first heating tube (41a) and the radius of the second heating tube (41b).

4. The poker paper card composite processing equipment according to claim 3, Features: The outer diameters of the first heating tube (41a) and the second heating tube (41b) range from 1000 mm to 3000 mm.

5. The poker paper card composite processing equipment according to any one of claims 1 to 4, Features: The tensioning belt assembly comprises a first tensioning roller (421) and a second tensioning roller (422) which are arranged in sequence along the circumference of the heating tube and are both arranged adjacent to the outer wall surface of the heating tube, and a tensioning belt (424) wound between the first tensioning roller (421) and the second tensioning roller (422), and the extension directions of the first tensioning roller (421) and the second tensioning roller (422) are both consistent with the axial direction of the heating tube.

6. The poker paper card composite processing equipment according to claim 5, Features: The tension belt (424) is a nylon belt.

7. The poker paper card composite processing equipment according to claim 5, Features: The angle formed by the first tensioning roller (421) and the second tensioning roller (422) relative to the axis of the heating cylinder is recorded as A, wherein the value range of A is: 170°≤A≤270°.

8. The poker paper card composite processing equipment according to claim 5, Features: The tensioning belt assembly also includes at least one third tensioning roller (423) away from the heating cylinder. The tensioning belt (424) is wound between the first tensioning roller (421), the second tensioning roller (422) and each third tensioning roller (423). The distance between at least one third tensioning roller (423) and the heating cylinder is adjustable so as to change the tension of the tensioning belt (424).

9. The poker paper card composite processing equipment according to any one of claims 1 to 4, Features Also includes: A moisture detection device (71) is arranged downstream of the drying unit (30) along the conveying direction of the composite paper card (d) and is used to detect the moisture content of the composite paper card (d) after being processed by the drying unit (30).

10. The poker paper card composite processing equipment according to any one of claims 1 to 4, Features: The drying box (31) is provided with at least two rows of conveying roller assemblies (32) arranged in sequence in the up-down direction, each conveying roller assembly (32) comprises a plurality of conveying rollers (320) arranged in sequence at intervals in the front-to-back direction, and the height of each conveying roller (320) in each conveying roller assembly (32) is gradually reduced from the middle position toward the front and rear sides, so that the paper card wound around the conveying roller assembly (32) presents an upwardly protruding arch structure in the front-to-back direction.

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