Preheating device for paperboard production
An adjustable preheating system with a sliding adjustment roller and limiting mechanism addresses temperature control issues in paperboard production, ensuring consistent and precise preheating across varying humidity conditions.
Patent Information
- Application Number
- CN202422214880.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-10
AI Technical Summary
During the production process of existing cardboard, it is difficult to flexibly adjust the preheating temperature according to changes in air temperature and humidity, resulting in inconvenience in use.
The combined structure of arc-shaped preheating plate, positioning roller and adjustment roller is adopted. Through the design of sliders, pronunciation grooves and limiting parts, the position adjustment of the adjustment roller is realized, ensuring flexible control of the contact time between the cardboard and the arc-shaped preheating plate surface.
It realizes accurate adjustment of the preheating temperature of the cardboard, improves the stability and reliability of the preheating effect, and adapts to the production needs of different specifications of cardboard.
Smart Images
Figure CN223100153U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of cardboard production, and particularly to a preheating device for cardboard production. Background Art
[0002] In the production process of cardboard, the preheating link is a crucial one. Preheating can not only make the cardboard more flat, but also make the subsequent processing process more stable.
[0003] Among them, the arc-shaped preheating plate is one of the preheating devices for cardboard. Refer to Figure 1 , the arc-shaped preheating device mainly includes an arc-shaped preheating plate 1, a support frame 2 for fixing the arc-shaped preheating plate 1, and positioning rollers 3 rotatably arranged at both ends of the arc-shaped preheating plate 1. A heating channel for steam to pass through is arranged inside the arc-shaped preheating plate 1, so as to continuously heat the arc-shaped preheating plate 1; when preheating the cardboard 101, the cardboard 101 is wound around one of the positioning rollers 3 and then closely adheres to the surface of the arc-shaped preheating plate 1 and is heated by contact, and then exits from the other positioning roller 3, and the preheating of the cardboard 101 can be completed.
[0004] In view of the above related technologies, in the actual production process, due to the different temperatures and humidities in the air, the preheating temperature required for the cardboard is also different. In the related technologies, when the cardboard needs to completely pass through the surface of the arc-shaped preheating plate before leaving the surface of the arc-shaped preheating plate along the positioning roller, there are problems of inconvenient use and inconvenient adjustment of the preheating temperature. Utility Model Content
[0005] In order to conveniently adjust the temperature of heating the cardboard, this application provides a preheating device for cardboard production.
[0006] This application provides a preheating device for cardboard production, adopting the following technical solutions:
[0007] A preheating device for cardboard production includes an arc-shaped preheating plate, a support frame for fixing the arc-shaped preheating plate, positioning rollers arranged on the support frame, adjusting rollers slidably arranged on the support frame, and limiting members for restricting the sliding of the adjusting rollers. The positioning rollers are arranged on one side of the arc-shaped preheating plate, and the adjusting rollers are slidably arranged above the arc-shaped preheating plate.
[0008] By adopting the above technical solutions, the cardboard is wound around the positioning rollers and then enters the arc-shaped preheating plate for heating. After the heating is completed, it is wound around the adjusting rollers and then leaves the arc-shaped preheating plate. By sliding the arc-shaped preheating plate, the contact time between the cardboard and the surface of the arc-shaped preheating plate is changed, and the heating temperature of the cardboard can be changed.
[0009] Optionally, the support frame includes two support plates arranged in parallel, each of the support plates is provided with a contoured groove, the curvature of the contoured groove is the same as the curvature of the surface of the arc-shaped preheating plate, each of the support plates is slidably provided with a mounting block, the mounting block is provided with a slider, the slider is slidably provided in the contoured groove, the adjusting roller is rotatably provided between the two mounting blocks, and the limit member can limit the sliding of the slider.
[0010] By adopting the above technical solution, the slider slides in the contoured groove, and the adjusting roller can be controlled to slide along the surface of the arc-shaped preheating plate.
[0011] Optionally, a first guide block is provided on the side wall of the sliding block, and the support plate is provided with a first guide groove on the side wall of the contoured groove for the guide block to slide.
[0012] By adopting the above technical solution, the sliding block can slide more stably.
[0013] Optionally, a control block is provided at one end of the sliding block away from the mounting block, the limiting member includes a limiting rod slidably provided on the control block, a limiting groove for inserting the limiting rod is provided on the side wall of the support plate, and a plurality of limiting grooves are arranged at intervals on the support plate along the extension direction of the contoured groove.
[0014] By adopting the above technical solution, the limiting rod is inserted into the limiting groove, so that the sliding of the control block and the sliding block can be limited, that is, the sliding of the adjusting roller can be limited.
[0015] Optionally, the limiting member further includes a holding block, and one end of the limiting rod facing away from the support plate passes through the control block and is connected to the holding block.
[0016] By adopting the above technical solution, the control grip block can conveniently control the sliding of the limit rod.
[0017] Optionally, the limiting member further includes a spring, the limiting rod passes through the spring, and the spring is arranged between the support plate and the holding block. When the limiting rod is inserted into the limiting groove, the spring is in a stretched state.
[0018] By adopting the above technical solution, the elastic force of the limiting rod against the limiting groove can be provided, so as to limit the limiting rod from escaping from the limiting groove and improve the stability of fixing the adjusting roller.
[0019] Optionally, the support plate includes a first plate and a second plate detachably disposed on the first plate, the preheating device also includes a fixing member for fixing the second plate to the first plate, and the adjusting roller is rotatably disposed on the second plate.
[0020] By adopting the above technical solution, the second plate is detachably fixed to the first plate, facilitating the disassembly of the adjusting roller.
[0021] Optionally, the fixing member is a fixing bolt and a fixing nut. A first hole for the fixing bolt to pass through is provided on the first plate, and a second hole for the fixing bolt to pass through is provided on the second plate.
[0022] By adopting the above technical solution, the detachable connection between the first plate and the second plate can be achieved conveniently and quickly.
[0023] Optionally, the second hole extends along the vertical direction.
[0024] By adopting the above technical solution, the second plate can be moved up and down relative to the first plate, thereby changing the distance between the adjusting roller and the upper surface of the arc-shaped heat conducting plate to adapt to fabrics of different thicknesses.
[0025] Optionally, a second guiding block is provided on the side wall of the second plate facing the first plate, and a second guiding groove for the second guiding block to slide is provided on the side wall of the first plate. The second guiding groove penetrates upward to the upper surface of the first plate.
[0026] By adopting the above technical solution, the second plate can be initially positioned on the first plate.
[0027] In summary, the present application includes at least one of the following beneficial effects:
[0028] 1. Since the present invention adopts an arc-shaped preheating plate, it can better fit the surface of the cardboard, improving the preheating effect. At the same time, the arc-shaped preheating plate is fixed by a support frame to ensure the stability of the preheating process. The coordinated setting of the positioning roller and the adjusting roller realizes the flexible control of the heating time during the cardboard production process, improving the quality of cardboard production.
[0029] 2. In the present invention, a combined structure of a slider, a profiling groove, and a limiting member is preferably adopted, which can conveniently adjust the position of the adjusting roller to adapt to the preheating of cardboard of different specifications and production requirements. In addition, the design of the limiting member enables the adjusting roller to be stably positioned during the sliding process, further improving the accuracy and reliability of preheating. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 is a schematic structural diagram of the related art;
[0031] Figure 2 is a schematic structural diagram of an embodiment of the present application;
[0032] Figure 3 is a schematic cross-sectional structure diagram of the second plate;
[0033] Figure 4It is an exploded structural schematic diagram of the support frame.
[0034] Description of reference numerals: 101, cardboard 1, arc-shaped preheating plate; 2, support frame; 21, first plate; 211, second guiding groove; 22, second plate; 221, profiling groove; 222, first guiding groove; 223, second guiding block; 224, limiting groove; 23, mounting block; 24, slider; 241, first guiding block; 25, control block; 3, positioning roller; 4, adjusting roller; 5, limiting member; 51, limiting rod; 52, holding block; 53, spring; 6, fixing member; 61, fixing bolt; 62, fixing nut. Detailed implementation manners
[0035] The following further elaborates on this application Figures 2 - 4 in further detail with reference to the accompanying drawings.
[0036] An embodiment of this application discloses a preheating device for cardboard production. Referring to Figure 2 , the preheating device includes an arc-shaped preheating plate 1, a support frame 2, a positioning roller 3, an adjusting roller 4, and a limiting member 5. The support frame 2 is used to fix the arc-shaped preheating plate 1 to ensure its stability; the positioning roller 3 is arranged on one side of the arc-shaped preheating plate 1 and is used to guide the cardboard 101 into the preheating area; the adjusting roller 4 is slidably arranged above the arc-shaped preheating plate 1, and by adjusting its position, the contact time between the cardboard 101 and the arc-shaped preheating plate 1 is adjusted, thereby adjusting the heating temperature of the cardboard 101; the limiting member 5 is used to limit the sliding of the adjusting roller 4 to ensure that it can work stably at a predetermined position.
[0037] Referring to Figure 2 and Figure 3 , in this embodiment, the support frame 2 includes two support plates arranged in parallel with each other. A base is fixed to the lower surface of the support plates to improve the stability of the support plates. The arc-shaped preheating plate 1 is fixed between the two support plates. The positioning roller 3 is rotationally fixed between the two support plates by means of bearings, etc. Preferably, there is a certain distance between the positioning roller 3 and the arc-shaped preheating plate 1. At the same time, the lower surface of the positioning roller 3 can be flush with the upper surface of the first preheating plate, so that the cardboard 101 can be tensioned and enter the preheating area and abut against the surface of the arc-shaped preheating plate 1.
[0038] Referring to Figure 2 and Figure 3, in this embodiment, a profiling groove 221 is formed in the support plate. The profiling groove 221 penetrates through the side wall of the support plate, and the radian of the profiling groove 221 is the same as the radian of the surface of the arc-shaped preheating plate 1. Mounting blocks 23 are slidably arranged on the side walls of the two support plates close to each other. A slider 24 is fixed on the mounting block 23, and the slider 24 slides in the profiling groove 221. The adjusting roller 4 is rotatably arranged on the two mounting blocks 23. This design can ensure that the adjusting roller 4 can fit the arc-shaped preheating plate 1. After passing around the adjusting roller 4, the paperboard 101 leaves the surface of the arc-shaped preheating plate 1. Under the positioning of the positioning roller 3 and the adjusting roller 4, the paperboard 101 can be closely attached to the surface of the arc-shaped preheating plate 1; as the slider 24 slides along the extending direction of the profiling groove 221, the adjusting roller 4 moves accordingly, changing its position above the arc-shaped preheating plate 1, thereby adjusting the contact area between the paperboard 101 and the arc-shaped preheating plate 1.
[0039] Referring to Figure 2 and Figure 3 , optionally, a first guiding block 241 is fixed on the side wall of the slider 24. The shape of the first guiding block 241 is not limited. In this embodiment, it is a rectangular block. A first guiding groove 222 for the first guiding block 241 to slide is formed in the support plate, and the first guiding groove 222 is communicated with the profiling groove 221.
[0040] Referring to Figure 2 and Figure 3 , in this embodiment, at one end of the slider 24 away from the mounting block 23, a control block 25 is fixed. The limiting member 5 can limit the sliding of the control block 25, thereby controlling the movement of the slider 24 and the adjusting roller 4. Specifically, the limiting member includes a limiting rod 51. The limiting rod 51 is arranged as a round rod. A limiting groove 224 for the limiting rod 51 to be inserted is formed in the side wall of the support plate. A plurality of limiting grooves 224 are spacedly arranged on the support plate along the extending direction of the profiling groove 221. Thus, when the slider 24 slides to the corresponding position, the limiting rod 51 is passed through the control block 25 and inserted into the limiting groove 224, and the sliding of the control block 25 can be restricted, thereby fixing the adjusting roller 4.
[0041] Referring to Figure 2 and Figure 3 , in this embodiment, further, the limiting member 5 further includes a holding block 52 and a spring 53. Among them, one end of the limiting rod 51 away from the support plate passes through the control block 25 and is fixed to the holding block 52. The holding block 52 facilitates the operator to hold and slide the limiting rod 51. The spring 53 is sleeved on the limiting rod 51 and fixed between the side wall of the support plate and the side wall of the holding block 52. When the limiting rod 51 is inserted into the limiting groove 224, the spring 53 is in a stretched state, providing a stable elastic force for the limiting rod 51 to ensure that it will not accidentally come out due to external force.
[0042] In other embodiments, the function of the spring 53 can be replaced by a threaded connection. Specifically, an external thread is provided at the end of the limiting rod 51 away from the holding block 52, and an internal thread is provided in the limiting groove 224. The limiting rod 51 is passed through the control block 25 and fixed in the limiting groove 224 by threaded connection, which can also prevent the limiting rod 51 from accidentally coming out of the limiting groove 224.
[0043] Referring Figure 3 and Figure 4 , in an alternative embodiment, the support plate can be provided with a split structure; specifically, the support plate includes a detachable first plate 21 and a second plate 22. Among them, the first plate 21 is located below and connected to the base, and the arc-shaped preheating plate 1 is fixed on the first plate 21; the second plate 22 is located above the first plate 21, and the second plate 22 slides up and down on the side wall of the first plate 21 away from the arc-shaped preheating plate 1. A profiling groove 221 is provided on the second plate 22. The preheating device further includes a fixing member 6, and the fixing member 6 can fix the second plate 22 on the first plate 21.
[0044] Specifically, the fixing member 6 can be a fixing bolt 61 and a fixing nut 62. A first hole for the fixing bolt 61 to pass through is provided on the first plate 21, and a second hole for the fixing bolt 61 to pass through is provided on the second plate 22. Thus, the fixing bolt 61 is passed through the first hole and the second hole, and the fixing nut 62 is connected, so that the first plate 21 and the second plate 22 can be locked, that is, the second plate 22 can be fixed on the first plate 21. Further, the second hole can extend along the vertical direction to move the second plate 22 up and down within a small range, so as to change the distance between the adjusting roller 4 and the arc-shaped preheating plate 1 to adapt to cardboard 101 of different thicknesses.
[0045] Optionally, a second guiding block 223 can be fixed on the side wall of the second plate 22 facing the first plate 21. The second guiding block 223 can be a T-shaped block, a trapezoidal block or a rectangular block, etc. In this embodiment, a rectangular block is provided. A second guiding groove 211 for the second guiding block 223 to slide is provided on the side wall of the first plate 21 facing the second plate 22. The second guiding groove 211 penetrates upward to the upper surface of the first plate 21. A plurality of second guiding blocks 223 can be arranged at intervals along the length direction of the second plate 22; when the second plate 22 is installed on the first plate 21, first align the second guiding block 223 with the second guiding groove 211 and insert it. Under the interaction of the two second plates 22, the second plate 22 can be initially positioned, and then the fixing bolt 61 is passed through the second hole and the first hole, and the height of the second plate 22 is adjusted up and down, and finally locked by the fixing nut 62.
[0046] The implementation principle of a preheating device for cardboard production in an embodiment of the present application is as follows: After the cardboard 101 is wound around the positioning roller 3, it abuts against the upper surface of the arc-shaped preheating plate 1 and winds out from the adjusting roller 4, thereby preheating the cardboard 101; when it is necessary to adjust the temperature of heating the cardboard 101, first control the limiting rod 51 to slide out of the limiting groove 224 through the holding block 52, and then slide the adjusting roller 4 along the direction of the profiling groove 221. When it reaches the appropriate position, release the limiting rod 51, so that the limiting rod 51 is inserted into the limiting groove 224 again under the action of the spring 53, and the adjustment can be completed.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A preheating device for cardboard production, characterized in that: The invention comprises an arc-shaped preheating plate (1), a support frame (2) for fixing the arc-shaped preheating plate (1), a positioning roller (3) arranged on the support frame (2), an adjusting roller (4) slidably arranged on the support frame (2), and a limiting member (5) for limiting the sliding of the adjusting roller (4), wherein the positioning roller (3) is arranged on one side of the arc-shaped preheating plate (1), and the adjusting roller (4) is slidably arranged above the arc-shaped preheating plate (1).
2. The preheating device for cardboard production according to claim 1, characterized in that: The support frame (2) comprises two support plates arranged in parallel, each of the two support plates being provided with a profiling groove (221), the curvature of the profiling groove (221) being the same as the curvature of the surface of the arc-shaped preheating plate (1), each of the two support plates being provided with a mounting block (23) for sliding movement, each of the mounting blocks (23) being provided with a slider (24), the slider (24) being slidably arranged in the profiling groove (221), the adjusting roller (4) being rotatably arranged between the two mounting blocks (23), and the limiting member (5) being capable of limiting the sliding movement of the slider (24).
3. The preheating device for cardboard production according to claim 2, characterized in that: A first guide block (241) is provided on the side wall of the sliding block (24), and a first guide groove (222) for sliding of the first guide block (241) is provided on the side wall of the profiling groove (221) on the supporting plate.
4. The preheating device for cardboard production according to claim 2, characterized in that: A control block (25) is provided at one end of the sliding block (24) away from the mounting block (23); the limiting member (5) comprises a limiting rod (51) slidably arranged on the control block (25); a limiting groove (224) for the limiting rod (51) to be inserted is provided on the side wall of the support plate; a plurality of limiting grooves (224) are provided at intervals on the support plate along the extension direction of the profiling groove (221).
5. The preheating device for cardboard production according to claim 4, characterized in that: The limiting member (5) further comprises a holding block (52), and one end of the limiting rod (51) which is away from the support plate passes through the control block (25) and is connected to the holding block (52).
6. The preheating device for cardboard production according to claim 5, characterized in that: The limiting member (5) further comprises a spring (53), the limiting rod (51) passing through the spring (53), the spring (53) being arranged between the support plate and the holding block (52), and when the limiting rod (51) is inserted into the limiting groove (224), the spring (53) is in a stretched state.
7. A preheating device for cardboard production according to any one of claims 2-6, characterized in that: The support plate comprises a first plate (21) and a second plate (22) detachably arranged on the first plate (21); the preheating device further comprises a fixing member (6) for fixing the second plate (22) to the first plate (21); and the adjusting roller (4) is rotatably arranged on the second plate (22).
8. A preheating device for cardboard production according to claim 7, characterized in that: The fixing member (6) is a fixing bolt (61) and a fixing nut (62); the first plate (21) is provided with a first hole for the fixing bolt (61) to pass through; the second plate (22) is provided with a second hole for the fixing bolt (61) to pass through.
9. The preheating device for cardboard production according to claim 8, characterized in that: The second hole extends along the vertical direction.
10. The preheating device for cardboard production according to claim 9, characterized in that: A second guiding block (223) is provided on a side wall of the second plate (22) facing the first plate (21), and a second guiding groove (211) for the second guiding block (223) to slide is formed in the side wall of the first plate (21), and the second guiding groove (211) penetrates upward to the upper surface of the first plate (21).