Production equipment and production method of cellular board

Abstract

The production equipment comprises a control unit and a honeycomb core stretching unit, the honeycomb core stretching unit comprises a fixed roller set, a first stretching roller set, a second stretching roller set and a third stretching roller set which are arranged in sequence, and the honeycomb core stretching unit is further provided with a first width detection device and a second width detection device; the first width detection device transmits first width information to the control unit, the control unit controls the rotating speed of the first stretching roller set according to the received first width information, and the second width detection device transmits second width information to the control unit. The control unit controls the rotating speed of the second stretching roller set according to the received second width information. Therefore, precise progressive stretching of the honeycomb core is achieved, the problems that in the prior art, manual stretching of the honeycomb core is not uniform, the quality is limited by the level of workers, and stretching of a platform type machine is large in waste (the stretchable allowance is large) are solved, uniform stretching of the honeycomb core is achieved, waste of the honeycomb core is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of honeycomb panel production, and in particular to a honeycomb panel production device and a production method thereof. Background Art

[0002] A honeycomb panel generally includes a honeycomb core and a surface panel. The existing production process of the honeycomb panel includes stretching the honeycomb core and bonding the stretched honeycomb core and the surface panel.

[0003] Among them, the stretching of the honeycomb core in the prior art mainly adopts the following methods: 1. The honeycomb core is stretched manually. This method will make the honeycomb core stretching uneven and waste more (stretchable margin). The quality of the stretched honeycomb core is limited by the workers' proficiency and technical level; 2. The honeycomb core is stretched by a platform machine. Although this method overcomes some defects of manual stretching, the waste of the honeycomb core is still large, that is, the remaining stretchable margin of the honeycomb core is large.

[0004] As for the bonding of the stretched honeycomb core and the surface plate, in the prior art, a glue roller is used to roll glue on the surface plate, thereby making the glue layer of the surface plate thicker and more expensive; or a glue spraying machine is used to spray glue on the surface plate. Although the glue consumption is reduced compared with the glue roller, the glue sprayed on the surface plate is uneven, and there may even be local leaks, which affects the bonding effect of the honeycomb core and the surface plate. Summary of the invention

[0005] To this end, the present application provides a honeycomb panel production device and a production method thereof to solve the technical problems of the prior art in terms of waste of raw materials and reduction of production costs.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A first aspect of the present invention provides a honeycomb panel production device, comprising a control unit and a honeycomb core stretching unit, wherein the control unit is connected to the honeycomb core stretching unit by signal, wherein the honeycomb core stretching unit comprises a fixed roller group, a first stretching roller group, a second stretching roller group and a third stretching roller group arranged in sequence, wherein a first width detection device is arranged between the first stretching roller group and the second stretching roller group, and a second width detection device is arranged between the second stretching roller group and the third stretching roller group;

[0008] The first width detection device is used to detect the first width of the honeycomb core, and the second width detection device is used to detect the second width of the honeycomb core. The first width detection device transmits the first width information to the control unit, and the control unit adjusts the speed ratio of the first stretching roller group and the second stretching roller group according to the received first width information. The second width detection device transmits the second width information to the control unit, and the control unit adjusts the speed ratio of the second stretching roller group and the third stretching roller group according to the received second width information.

[0009] Optionally, the first width detection device includes a first pressure roller and a first width sensor, the first width sensor is used to obtain and transmit the first width information, the honeycomb core is in contact with the lower side of the first pressure roller, and the honeycomb core forms a first angle at the first pressure roller.

[0010] Optionally, the second width detection device includes a second pressure roller and a second width sensor, the second width sensor is used to obtain and transmit the second width information, the honeycomb core is in contact with the lower side of the second pressure roller, and the honeycomb core forms a second angle at the second pressure roller.

[0011] Optionally, the production equipment of the honeycomb panel further includes a glue rolling unit, and the glue rolling unit is arranged in a lower process of the honeycomb core stretching unit, and the glue rolling unit is used to apply glue to the honeycomb core.

[0012] Further optionally, the glue rolling unit includes a first glue coating roller and a first support roller arranged above and below the first glue coating roller, a second glue coating roller and a second support roller arranged above and below the second glue coating roller, and the first glue coating roller and the second glue coating roller have the same rotation direction.

[0013] Further optionally, a rubber film scraper is provided on the roller surface side of the first rubber coating roller, and a gap is provided between the roller surface of the first rubber coating roller and the roller surface of the second rubber coating roller.

[0014] Further optionally, the production equipment of the honeycomb panel also includes a flattening and compounding unit, which is arranged in a process below the glue rolling unit, and is used to bond the surface plate and the honeycomb core after glue coating.

[0015] The second aspect of the present invention provides a method for producing a honeycomb panel, using a honeycomb panel production device provided by the first aspect of the present invention, the method for producing the honeycomb panel includes a honeycomb core stretching unit stretching the honeycomb core, and the specific steps are as follows:

[0016] The honeycomb core is stretched in one stage, the fixed roller group generates a constant tension, and the first stretching roller group and the fixed roller group stretch the honeycomb core in one stage;

[0017] The honeycomb core is subjected to secondary stretching, wherein the rotation speed of the second stretching roller group is greater than the rotation speed of the first stretching roller group, the control unit sets a first width preset value, and when the first width detected by the first width detection device is greater than the first width preset value, the control unit controls the rotation speed of the first stretching roller group to slow down, thereby adjusting the speed ratio between the first stretching roller group and the second stretching roller group;

[0018] The honeycomb core is subjected to three-stage stretching. The rotation speed of the third stretching roller group is greater than the rotation speed of the second stretching roller group. The control unit sets a second width preset value. When the second width detected by the second width detection device is greater than the second width preset value, the control unit controls the rotation speed of the second stretching roller group to slow down, thereby adjusting the speed ratio of the second stretching roller group to the third stretching roller group. At the same time, the rotation speed of the first stretching roller group is correspondingly slowed down, thereby maintaining a stable speed ratio between the first stretching roller group and the second stretching roller group.

[0019] Optionally, the honeycomb panel production method further comprises a glue rolling unit coating the honeycomb core with glue, as follows:

[0020] The honeycomb core enters the glue rolling unit after passing through the honeycomb core stretching unit;

[0021] The honeycomb core is coated with glue once, and the honeycomb core passes between a first glue coating roller and a first supporting roller, so that the first glue coating roller coats the honeycomb core with glue once, and a glue film scraper is arranged on the outer side of the first glue coating roller, and the glue film scraper limits the glue layer thickness of the first glue coating roller;

[0022] The honeycomb core is coated with glue twice. After the honeycomb core is coated with glue once, the honeycomb core passes between a second glue coating roller and a second supporting roller, so that the second glue coating roller coats the honeycomb core with glue twice, wherein the second glue coating roller rotates in the same direction as the first glue coating roller, and a gap is set between the roller surface of the second glue coating roller and the roller surface of the first glue coating roller.

[0023] Further optionally, the production method of the honeycomb panel also includes bonding the surface panel and the honeycomb core by a leveling composite unit, the surface panel is laid on the leveling composite unit, and the honeycomb core passes through the glue rolling unit and is bonded to the surface panel on the leveling composite unit.

[0024] Compared with the prior art, this application has at least the following beneficial effects:

[0025] A honeycomb panel production device, a honeycomb core stretching unit is provided with a fixed roller group, a first stretching roller group, a second stretching roller group and a third stretching roller group arranged in sequence, and a first width detection device is provided between the first stretching roller group and the second stretching roller group, and a second width detection device is provided between the second stretching roller group and the third stretching roller group, and the detection device is connected with a control unit by signal, and the control unit controls the rotation speed of the corresponding stretching roller group according to the detected honeycomb core width information, and adopts a progressive stretching structure of a multi-stage roller group, combined with a real-time width detection feedback mechanism, and dynamically adjusts the speed of each stretching roller group through the control unit to achieve precise progressive stretching of the honeycomb core, thereby solving the problems of uneven manual stretching of the honeycomb core, quality limited by the level of workers, and more waste (large stretchable margin) of platform-type machine stretching in the prior art, achieving uniform stretching of the honeycomb core, reducing the waste of the honeycomb core, and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, those skilled in the art are capable of easily making conventional adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, dimensional ratios, etc. of certain units (components) based on the technical concepts and exemplary drawings disclosed in the present application.

[0027] Figure 1 A schematic diagram of a honeycomb panel production device provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of a honeycomb core stretching unit of a honeycomb panel production device provided in an embodiment of the present application;

[0029] Figure 3 A schematic diagram of a glue rolling unit of a honeycomb panel production equipment provided in an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 100, control unit; 200, honeycomb core stretching unit; 210, fixed roller group; 211, damper; 220, first stretching roller group; 230, second stretching roller group; 240, third stretching roller group; 250, first width detection device; 251, first pressure roller; 252, first width sensor; 260, second width detection device; 261, second pressure roller; 262, second width sensor; 300, glue rolling unit; 310, first glue coating roller; 320, first support roller; 330, second glue coating roller; 340, second support roller; 350, glue film scraper; 400, leveling and compounding unit; 500, unwinding unit; 600, leveling area; 700, material collection platform; 800, honeycomb core; 900, surface plate. DETAILED DESCRIPTION

[0032] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0033] The purpose of the present invention is to provide a production device and a production method of a honeycomb panel, and the main purpose is to reduce the waste of raw materials during the production of the honeycomb panel.

[0034] refer to Figure 1-3 As shown, this embodiment provides a honeycomb panel production device, including a control unit 100 and a honeycomb core stretching unit 200. The control unit 100 is signal-connected to the honeycomb core stretching unit 200. The control unit 100 is a programmable logic controller (PLC) with powerful data processing and control capabilities. It can quickly receive and process information transmitted by a width detection device and accurately control the rotation speed of each stretching roller group.

[0035] The honeycomb core stretching unit 200 includes a fixed roller group 210, a first stretching roller group 220, a second stretching roller group 230 and a third stretching roller group 240 arranged in sequence, a first width detection device 250 is arranged between the first stretching roller group 220 and the second stretching roller group 230, and a second width detection device 260 is arranged between the second stretching roller group 230 and the third stretching roller group 240.

[0036] The first width detection device 250 is used to detect the first width of the honeycomb core 800, and the second width detection device 260 is used to detect the second width of the honeycomb core 800. The first width detection device 250 transmits the first width information to the control unit 100, and the control unit 100 controls the rotation speed of the first stretching roller group 220 according to the received first width information, thereby adjusting the speed ratio of the first stretching roller group 220 to the second stretching roller group 230. The second width detection device 260 transmits the second width information to the control unit 100, and the control unit 100 controls the rotation speed of the second stretching roller group 230 according to the received second width information, thereby adjusting the speed ratio of the second stretching roller group 230 to the third stretching roller group 240, wherein the rotation speed of the third stretching roller group 240 is usually set to a constant speed.

[0037] The fixed roller set 210 includes a damper 211. Under the action of the damper 211, the rotation speed of the fixed roller set 210 is less than the rotation speed of the first stretching roller set 220, thereby generating a constant tension on the honeycomb core 800 located between the fixed roller set 210 and the first stretching roller set 220, thereby completing the primary stretching of the honeycomb core 800, that is, the preliminary stretching, and generally the stretching degree of the primary stretching is 80%. The honeycomb core 800 will have a width error of about ±5%, and a lot of stretching margin will remain.

[0038] The first stretching roller group 220 , the second stretching roller group 230 and the third stretching roller group 240 each include a drive motor, which is preferably a servo motor. The rotation speed of the second stretching roller group 230 is greater than the rotation speed of the first stretching roller group 220 , and the rotation speed of the third stretching roller group 240 is greater than the rotation speed of the second stretching roller group 230 .

[0039] The speed ratio of the second stretching roller group 230 to the first stretching roller group 220 generates tension on the honeycomb core 800, thereby completing the secondary stretching of the honeycomb core 800. The secondary stretching is an adjustment stretching, and the first width detection device 250 set between the first stretching roller group 220 and the second stretching roller group 230 detects the stretched width of the honeycomb core 800 in real time. At this time, the detected width of the honeycomb core 800 is the first width. The control unit 100 adjusts the speed ratio of the second stretching roller group 230 to the first stretching roller group 220 in real time according to the first width detection result (i.e., the first width information) transmitted by the first width detection device 250, thereby adjusting the error generated by the primary stretching and stretching the honeycomb core 800 to the required width (i.e., the first width preset value). Specifically, when the first width detected by the first width detection device 250 is greater than the first width preset value, the control unit 100 controls the rotation speed of the first stretching roller group 220 to slow down.

[0040] The speed ratio of the third stretching roller group 240 to the second stretching roller group 230 generates tension on the honeycomb core 800, completing the three-stage stretching of the honeycomb core 800. The three-stage stretching is precision stretching, and the second width detection device 260 set between the second stretching roller group 230 and the third stretching roller group 240 detects the stretched width of the honeycomb core 800 in real time. At this time, the detected width of the honeycomb core 800 is the second width. The control unit 100 adjusts the speed ratio of the third stretching roller group 240 to the second stretching roller group 230 in real time according to the second width detection result (i.e., the second width information) transmitted by the second width detection device 260, thereby further adjusting the error generated by the stretching and stretching the honeycomb core 800 to the required width (i.e., the second width preset value). When the second width detected by the second width detection device 260 is greater than the second width preset value, the control unit 100 controls the rotation speed of the second stretching roller group 230 to slow down. After the precision stretching adjustment, the width of the honeycomb core 800 is controlled within a very small error range, thereby ensuring product quality while minimizing material waste.

[0041] By dynamically adjusting the speed of each stretching roller group through the control unit 100, the precise progressive stretching of the honeycomb core 800 is achieved, which solves the problems in the prior art of uneven manual stretching of the honeycomb core 800, quality being limited by the workers' level, and large waste in platform-type machine stretching (large stretchable margin), thereby achieving uniform stretching of the honeycomb core 800, reducing the waste of the honeycomb core 800, and reducing production costs.

[0042] In a preferred embodiment, the first width detection device 250 includes a first pressing roller 251 and a first width sensor 252, the first width sensor 252 is used to obtain and transmit first width information, the honeycomb core 800 is in contact with the lower side of the first pressing roller 251, and the honeycomb core 800 forms a first angle at the first pressing roller 251. The first pressing roller 251 presses the honeycomb core 800 downward and contacts the honeycomb core 800, so that the width of the honeycomb core 800 can be stretched more evenly.

[0043] The second width detection device 260 includes a second pressing roller 261 and a second width sensor 262. The second width sensor 262 is used to obtain and transmit second width information. The honeycomb core 800 is in contact with the lower side of the second pressing roller 261, and the honeycomb core 800 forms a second angle at the second pressing roller 261. The second pressing roller 261 presses the honeycomb core 800 downward and contacts with the second pressing roller 261, so that the width of the honeycomb core 800 can be further stretched to be more uniform.

[0044] In a preferred embodiment, the honeycomb panel production equipment further includes a glue rolling unit 300, which is disposed in a process below the honeycomb core stretching unit 200 and is used to apply glue to the honeycomb core 800. The glue rolling unit 300 preferably uses a two-component polyurethane adhesive to apply glue to the honeycomb core 800.

[0045] Specifically, the glue rolling unit 300 includes a first glue coating roller 310 and a first supporting roller 320 corresponding to the first glue coating roller 310, a second glue coating roller 330 and a second supporting roller 340 corresponding to the second glue coating roller 330. The first glue coating roller 310 and the second glue coating roller 330 have the same rotation direction. The honeycomb core 800 is first coated with glue between the first glue coating roller 310 and the first supporting roller 320, and then coated with glue for the second time between the second glue coating roller 330 and the second supporting roller 340. Glue is directly applied on the stretched honeycomb core 800 by the glue rolling unit 300, so that the glue consumption is greatly reduced. The first glue coating roller 310 and the second glue coating roller 330 are double rollers that apply glue to the honeycomb core 800 in the forward direction. The first glue coating roller 310 and the second glue coating roller 330 have the same rotation direction. The honeycomb core 800 is coated with glue for the second time while the glue is being evenly applied, which increases the contact time between the glue on the glue roller and the honeycomb core 800, ensures the amount of glue on the honeycomb core 800, and thus improves product quality.

[0046] Preferably, a film scraper 350 is provided on the roller surface side of the first glue coating roller 310, and a gap is provided between the roller surface of the first glue coating roller 310 and the roller surface of the second glue coating roller 330. The distance of the gap is usually set between 0.1 mm and 0.2 mm, and the specific value of the gap is determined according to the characteristics of the glue on the roller surface of the first glue coating roller 310. In this way, the film scraper 350 can not only limit the thickness of the glue layer of the first glue coating roller 310, but also play the role of smoothing the glue layer of the first glue coating roller 310. In addition, the gap setting of the roller surface can also allow the first glue coating roller 310 to limit the thickness of the glue layer of the second glue coating roller 330, and can also smooth the glue layer of the second glue coating roller 330. Thus, the glue coating of the honeycomb core 800 is more uniform.

[0047] In a preferred embodiment, the production equipment of the honeycomb panel further includes a flattening and compounding unit 400, which is arranged in the lower process of the glue rolling unit 300, and is used to bond the surface plate 900 and the honeycomb core 800 after being coated with glue. The surface plate 900 enters the flattening and compounding unit 400 after being unrolled by the unwinding unit 500, and the honeycomb core 800 coated with glue is compounded with the surface plate 900 on the flattening machine of the flattening and compounding unit 400 to form a honeycomb panel. The flattening and compounding unit 400 cuts the composite honeycomb panel into the required length as needed and then sends it to the receiving platform 700 through the leveling area 600.

[0048] This embodiment also provides a method for producing a honeycomb panel, using a honeycomb panel production device provided in the above embodiment, comprising the following steps:

[0049] Step S1, the honeycomb core stretching unit 200 stretches the honeycomb core 800. The specific steps of step S1 are as follows:

[0050] Step S11, the honeycomb core 800 is stretched in the first stage, the fixed roller group 210 generates a constant tension, and the first stretching roller group 220 and the fixed roller group 210 stretch the honeycomb core 800 in the first stage;

[0051] Step S12, the honeycomb core 800 is subjected to secondary stretching, the rotation speed of the second stretching roller group 230 is greater than the rotation speed of the first stretching roller group 220, the control unit 100 sets a first width preset value, and when the first width detected by the first width detection device 250 is greater than the first width preset value, the control unit 100 controls the rotation speed of the first stretching roller group 220 to slow down, thereby adjusting the speed ratio of the first stretching roller group 220 to the second stretching roller group 230;

[0052] In step S13, the honeycomb core 800 is stretched in three stages, the rotation speed of the third stretching roller group 240 is greater than the rotation speed of the second stretching roller group 230, and the control unit 100 sets a second width preset value. When the second width detected by the second width detection device 260 is greater than the second width preset value, the control unit 100 controls the rotation speed of the second stretching roller group 230 to slow down, thereby adjusting the speed ratio of the second stretching roller group 230 to the third stretching roller group 240. At the same time, the rotation speed of the first stretching roller group 220 is correspondingly slowed down, thereby maintaining a stable speed ratio between the first stretching roller group 220 and the second stretching roller group 230.

[0053] Step S2, the glue rolling unit 300 applies glue to the honeycomb core 800. The specific steps of step S2 are as follows:

[0054] Step S21, the honeycomb core 800 passes through the honeycomb core stretching unit 200 and enters the glue rolling unit 300;

[0055] Step S22, the honeycomb core 800 is coated with glue once. The honeycomb core 800 passes between the first glue coating roller 310 and the first supporting roller 320, so that the first glue coating roller 310 coats the honeycomb core 800 with glue once. A glue film scraper 350 is provided on the roller surface side of the first glue coating roller 310, and the glue film scraper 350 limits the glue layer thickness of the first glue coating roller 310;

[0056] In step S23, the honeycomb core 800 is coated with glue for the second time. After the honeycomb core 800 is coated with glue once, the honeycomb core 800 passes between the second glue coating roller 330 and the second supporting roller 340, so that the second glue coating roller 330 coats the honeycomb core 800 with glue for the second time, wherein the second glue coating roller 330 rotates in the same direction as the first glue coating roller 310, and a gap is set between the roller surface of the second glue coating roller 330 and the roller surface of the first glue coating roller 310, so that the first glue coating roller 310 can evenly coat the glue layer of the second glue coating roller 330.

[0057] Step S3, the leveling and compounding unit 400 bonds the surface plate 900 and the honeycomb core 800. The surface plate 900 enters the leveling and compounding unit 400 after being unrolled by the unwinding unit 500, and the surface plate 900 is laid on the leveling machine of the leveling and compounding unit 400. After the honeycomb core 800 passes through the glue rolling unit 300, it is bonded with the surface plate 900 on the leveling and compounding unit 400 to form a honeycomb panel. The leveling and compounding unit 400 cuts the composite honeycomb panel into the required length as needed and sends it to the receiving platform 700 through the leveling area 600.

[0058] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A honeycomb panel production equipment, characterized in that: The honeycomb panel production equipment includes a control unit and a honeycomb core stretching unit, the control unit is connected to the honeycomb core stretching unit by signal, the honeycomb core stretching unit includes a fixed roller group, a first stretching roller group, a second stretching roller group and a third stretching roller group arranged in sequence, a first width detection device is arranged between the first stretching roller group and the second stretching roller group, and a second width detection device is arranged between the second stretching roller group and the third stretching roller group; The first width detection device is used to detect the first width of the honeycomb core, and the second width detection device is used to detect the second width of the honeycomb core. The first width detection device transmits the first width information to the control unit, and the control unit adjusts the speed ratio of the first stretching roller group and the second stretching roller group according to the received first width information. The second width detection device transmits the second width information to the control unit, and the control unit adjusts the speed ratio of the second stretching roller group and the third stretching roller group according to the received second width information.

2. A honeycomb panel production equipment according to claim 1, characterized in that: The first width detection device includes a first pressing roller and a first width sensor, wherein the first width sensor is used to obtain and transmit the first width information, the honeycomb core is in contact with the lower side of the first pressing roller, and the honeycomb core forms a first angle at the first pressing roller.

3. The honeycomb panel production equipment according to claim 1, characterized in that: The second width detection device includes a second pressing roller and a second width sensor, the second width sensor is used to obtain and transmit the second width information, the honeycomb core is in contact with the lower side of the second pressing roller, and the honeycomb core forms a second angle at the second pressing roller.

4. The honeycomb panel production equipment according to claim 1, characterized in that: The production equipment of the honeycomb panel further comprises a glue rolling unit, which is arranged in a lower process of the honeycomb core stretching unit and is used for applying glue to the honeycomb core.

5. The honeycomb panel production equipment according to claim 4, characterized in that: The glue rolling unit includes a first glue coating roller and a first supporting roller arranged above and below the first glue coating roller, a second glue coating roller and a second supporting roller arranged above and below the second glue coating roller, and the first glue coating roller and the second glue coating roller have the same rotation direction.

6. The honeycomb panel production equipment according to claim 5, characterized in that: A film scraper is arranged on the roller surface side of the first glue coating roller, and a gap is arranged between the roller surface of the first glue coating roller and the roller surface of the second glue coating roller.

7. The honeycomb panel production equipment according to claim 4, characterized in that: The production equipment of the honeycomb panel also includes a flattening and compounding unit, which is arranged in a process below the glue rolling unit and is used to bond the surface plate and the honeycomb core after glue coating.

8. A method for producing a honeycomb panel, characterized in that: A honeycomb panel production device according to any one of claims 1 to 7 is used, wherein the honeycomb panel production method comprises a honeycomb core stretching unit stretching the honeycomb core, and the specific steps are as follows: The honeycomb core is stretched in one stage, the fixed roller group generates a constant tension, and the first stretching roller group and the fixed roller group stretch the honeycomb core in one stage; The honeycomb core is subjected to secondary stretching, wherein the rotation speed of the second stretching roller group is greater than the rotation speed of the first stretching roller group, the control unit sets a first width preset value, and when the first width detected by the first width detection device is greater than the first width preset value, the control unit controls the rotation speed of the first stretching roller group to slow down, thereby adjusting the speed ratio between the first stretching roller group and the second stretching roller group; The honeycomb core is subjected to three-stage stretching. The rotation speed of the third stretching roller group is greater than the rotation speed of the second stretching roller group. The control unit sets a second width preset value. When the second width detected by the second width detection device is greater than the second width preset value, the control unit controls the rotation speed of the second stretching roller group to slow down, thereby adjusting the speed ratio of the second stretching roller group to the third stretching roller group. At the same time, the rotation speed of the first stretching roller group is correspondingly slowed down, thereby maintaining a stable speed ratio between the first stretching roller group and the second stretching roller group.

9. The method for producing a honeycomb panel according to claim 8, characterized in that: The production method of the honeycomb panel further includes applying glue to the honeycomb core by a glue rolling unit, as follows: The honeycomb core enters the glue rolling unit after passing through the honeycomb core stretching unit; The honeycomb core is coated with glue once, and the honeycomb core passes between a first glue coating roller and a first supporting roller, so that the first glue coating roller coats the honeycomb core with glue once, and a glue film scraper is arranged on the outer side of the first glue coating roller, and the glue film scraper limits the glue layer thickness of the first glue coating roller; The honeycomb core is coated with glue twice. After the honeycomb core is coated with glue once, the honeycomb core passes between a second glue coating roller and a second supporting roller, so that the second glue coating roller coats the honeycomb core with glue twice, wherein the second glue coating roller rotates in the same direction as the first glue coating roller, and a gap is set between the roller surface of the second glue coating roller and the roller surface of the first glue coating roller.

10. The method for producing a honeycomb panel according to claim 9, characterized in that: The production method of the honeycomb panel also includes bonding the surface panel and the honeycomb core by a flattening composite unit, the surface panel is laid on the flattening composite unit, and the honeycomb core is bonded to the surface panel on the flattening composite unit after passing through the glue rolling unit.

Images