Up-down heating device for heating plate of paperboard production line

Abstract

The utility model relates to the technical field of paperboard processing and drying, in particular to a paperboard production line heating plate up-and-down heating device, which is provided with a jacking mechanism with a screwed drive to be matched with a double-sided heating device, so that support plates are convenient to take and the practicability is improved on the basis of quickly drying the support plates; comprising a main rack, a hydraulic cylinder, a telescopic rod, an upper heating plate, a hollow bottom frame, a lower heating plate, guide sleeves, a sliding frame, an inner screw groove connecting frame, a reciprocating motor and a threaded rod, the middle of the bottom end in the main rack is connected with the bottom end of the hollow bottom frame, the top end of the hollow bottom frame is connected with the middle of the bottom end of the lower heating plate, and the guide sleeves are arranged in the left side and the right side of the lower heating plate correspondingly; the top end of the interior of the main rack is connected with the top end of a hydraulic cylinder, the output end of the hydraulic cylinder is in sliding connection with the outer side of a telescopic rod, and the bottom end of the telescopic rod is connected with the middle of the top end of an upper heating plate.

Description

Technical Field

[0001] This utility model relates to the technical field of paperboard processing and drying, specifically to a heating device for the upper and lower heating plates of a paperboard production line. Background Technology

[0002] In a corrugated cardboard production line, a hot plate machine provides heat to the paper to bond it together, so that the paper is dried and bonded together to form the cardboard. As the paper passes through the hot plate, it carries away the heat from the hot plate through contact with the hot plate, evaporates the moisture in the adhesive, dries the paper and adhesive, and makes the paper bond together, thus accelerating the forming of the corrugated cardboard.

[0003] A paperboard production line dryer, such as the one with patent publication number CN222662848U, can be used to make use of the gap in the middle of the corrugated paperboard as a hot air drying channel, so that the hot air can directly dry the moisture in the adhesive, reduce drying energy consumption, and avoid the situation where the adhesive is squeezed out due to the pressure when drying through the hot press plate, and avoid the situation where the corrugated paperboard is flattened and deformed.

[0004] However, the device is inconvenient to remove the dried support plate, making it impractical. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a heating plate upper and lower heating device for a cardboard production line, which is equipped with a top support mechanism with screw drive and a double-sided heating device. This device not only meets the requirements for rapid drying of the support plate but also facilitates easy handling and improves practicality.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a heating plate upper and lower heating device for a cardboard production line, comprising a main frame, a hydraulic cylinder, a telescopic rod, an upper heating plate, a hollow base frame, a lower heating plate, guide sleeves, a slide, an inner screw groove connecting frame, a reciprocating motor, and a threaded rod. The bottom middle of the main frame is connected to the bottom end of the hollow base frame, and the top end of the hollow base frame is connected to the bottom middle of the lower heating plate. A set of guide sleeves is respectively provided on the left and right sides of the lower heating plate, and the inner wall of each set of guide sleeves is slidably connected to the outer wall of a set of slides. The bottom sides of the two sets of slides are respectively connected to the left and right sides of the inner screw groove connecting frame. The top end of the hollow base frame is connected to the top end of the reciprocating motor, and the bottom output end of the reciprocating motor is connected to the top end of the threaded rod. The threaded rod is vertically rotatably mounted inside the hollow base frame. The top end of the main frame is connected to the top end of the hydraulic cylinder, and the output end of the hydraulic cylinder is slidably connected to the outer side of the telescopic rod. The bottom end of the telescopic rod is connected to the top middle of the upper heating plate.

[0009] Preferably, it also includes an oil injection nozzle, wherein the lower middle part of the outer side of each group of guide sleeves is connected to the inner side of a group of oil injection nozzles.

[0010] Preferably, it also includes an oil filling cap, wherein the outer side of the oil filling nozzle and the inner side of the oil filling cap are detachably installed.

[0011] Preferably, it also includes a lighting lamp, with the rear center side of the main frame connected to the rear side of the lighting lamp.

[0012] Preferably, it also includes a connecting seat and an information board, with the upper front part of the main frame connected to the top side of the connecting seat, and the front side of the connecting seat connected to the rear side of the information board.

[0013] Preferably, it also includes grating brackets and safety gratings. The left and right ends of the lower front side of the main frame are respectively connected to the bottom of a set of grating brackets, and a pair of safety gratings are provided on the inner side of the two sets of grating brackets.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a heating device for the upper and lower heating plates of a cardboard production line, which has the following beneficial effects:

[0016] When the two sets of carriages are synchronously positioned within their respective guide sleeves, with the lower heating plate surface flush, the cardboard to be dried is placed on the top side of the lower heating plate, allowing it to heat the lower side of the cardboard. Then, the hydraulic cylinder extends the telescopic rod, causing the upper heating plate to move downwards until it heats the upper surface of the cardboard, creating a combined heating effect between the upper and lower layers. After completion, the upper heating plate returns to its original position, and the reciprocating motor restarts, causing the threaded rod to rotate. The threaded rod, through a screw-fitted connection with the inner thread groove connecting frame, drives the two sets of carriages to slide upwards synchronously under the constraint of the guide sleeves, lifting the cardboard upwards for easy removal. A screw-driven top support mechanism, combined with a double-sided heating device, ensures rapid drying of the cardboard while facilitating easy removal and improving practicality. Attached Figure Description

[0017] Figure 1 This is an axial view illustrating the structure of this utility model.

[0018] Figure 2 This utility model Figure 1 The right view;

[0019] Figure 3 This utility model Figure 1 Front view;

[0020] Figure 4 This utility model Figure 3 Left view of section A.

[0021] The following components are labeled in the attached diagram: 1. Main frame; 2. Hydraulic cylinder; 3. Telescopic rod; 4. Upper heating plate; 5. Hollow base frame; 6. Lower heating plate; 7. Guide sleeve; 8. Slide carriage; 9. Internal threaded groove connecting frame; 10. Reciprocating motor; 11. Threaded rod; 12. Oil nozzle; 13. Oil cap; 14. Lighting lamp; 15. Connecting seat; 16. Information board; 17. Light curtain bracket; 18. Safety light curtain. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-4 The heating plate upper and lower heating device for a cardboard production line includes a main frame 1, a hydraulic cylinder 2, a telescopic rod 3, an upper heating plate 4, a hollow base frame 5, a lower heating plate 6, guide sleeves 7, slides 8, an inner screw groove connecting frame 9, a reciprocating motor 10, and a threaded rod 11. The bottom center of the main frame 1 is connected to the bottom of the hollow base frame 5. The top of the hollow base frame 5 is connected to the bottom center of the lower heating plate 6. A set of guide sleeves 7 is installed on each of the left and right sides of the lower heating plate 6. The inner wall of each set of guide sleeves 7 is slidably connected to the outer wall of a set of slides 8. The bottom sides of the two sets of slides 8 are connected to the left and right sides of the inner screw groove connecting frame 9. The top of the hollow base frame 5 is connected to the top of the reciprocating motor 10. The bottom output end of the reciprocating motor 10 is connected to the top of the threaded rod 11. The threaded rod 11 is vertically rotatable within the hollow base frame 5. The top of the inner part of frame 1 is connected to the top of hydraulic cylinder 2. The output end of hydraulic cylinder 2 is slidably connected to the outside of telescopic rod 3. The bottom end of telescopic rod 3 is connected to the middle of the top of upper heating plate 4. When the two sets of slides 8 are synchronously in the corresponding guide sleeves 7, the surface of the lower heating plate 6 is flush with the initial state. The cardboard to be dried is placed on the top side of the lower heating plate 6, so that it acts on the lower side of the cardboard for heating. Then, hydraulic cylinder 2 acts on telescopic rod 3 to extend, so that upper heating plate 4 moves down until upper heating plate 4 acts on the upper surface of cardboard for drying, forming a heating effect between the upper and lower layers. After completion, upper heating plate 4 is reset upward, and reciprocating motor 10 runs again, so that threaded rod 11 rotates. Threaded rod 11 is screwed into inner thread groove connecting frame 9, which drives the two sets of slides 8 to slide synchronously upward under the constraint of guide sleeve 7, lifting the cardboard upward, thus making it easy to pick up.

[0025] It also includes an oil injection nozzle 12, with the lower outer part of each guide sleeve 7 connected to the inner side of an oil injection nozzle 12; oil can be injected into the inner wall of the guide sleeve 7 through the oil injection nozzle 12 for convenient lubrication and maintenance.

[0026] It also includes an oil filling cap 13, and the outer side of the oil filling nozzle 12 and the inner side of the oil filling cap 13 can be detachably installed; after the oil filling cap 13 is installed on the outer side of the oil filling nozzle 12, the inside of the oil filling nozzle 12 can be sealed and protected, improving reliability.

[0027] It also includes a lighting lamp 14, which is connected to the rear side of the main frame 1; when the lighting lamp 14 is powered on, it can provide illumination, optimize the lighting environment, and facilitate operation.

[0028] It also includes a connecting seat 15 and an information board 16. The upper middle part of the front side of the main frame 1 is connected to the top side of the connecting seat 15, and the front side of the connecting seat 15 is connected to the rear side of the information board 16. The information board 16 is fixed in position by the connecting seat 15, and the information board 16 can display the information of this device, which is convenient for reading and assisting in use, thus improving convenience.

[0029] It also includes a grating bracket 17 and a safety grating 18. The lower left and right ends of the front of the main frame 1 are respectively connected to the bottom of a set of grating brackets 17. A pair of safety gratings 18 are provided on the inner side of the two sets of grating brackets 17. The safety gratings 18 are fixedly supported by the grating brackets 17, and the safety gratings 18 form a safety protection, improving reliability.

[0030] In summary, when the upper and lower heating devices of the cardboard production line are in use, the initial state is when the two sets of slides 8 are synchronously in the corresponding guide sleeves 7 and the surface of the lower heating plate 6 is flush. The cardboard to be dried is placed on the top side of the lower heating plate 6, so that it acts on the lower side of the cardboard for heating. Then, the hydraulic cylinder 2 acts on the extension rod 3 to extend, causing the upper heating plate 4 to move down until the upper heating plate 4 acts on the upper surface of the cardboard for drying, forming a combined heating effect between the upper and lower layers. After completion, the upper heating plate 4 returns to its original position, and the reciprocating motor 10 runs again, causing the threaded rod 11 to rotate. The threaded rod 11 is screwed into the inner thread groove connecting frame 9, driving the two sets of slides... The frame 8 slides upward synchronously under the constraint of the guide sleeve 7, lifting the cardboard upward for easy retrieval. In addition, oil can be injected into the inner wall of the guide sleeve 7 through the oil nozzle 12 for convenient lubrication and maintenance. After installing the oil nozzle 13 on the outside of the oil nozzle 12, the inside of the oil nozzle 12 can be sealed and protected. When the lighting lamp 14 is powered on, it can provide illumination, optimize the lighting environment, and facilitate operation. The information board 16 is fixed in position by the connecting seat 15, and the information board 16 can display the information of this device for easy reading and auxiliary use. The safety light curtain 18 is fixed and supported by the light curtain bracket 17, and the safety light curtain 18 forms a safety protection, improving reliability.

[0031] The hydraulic cylinder 2, upper heating plate 4, lower heating plate 6, reciprocating motor 10, connecting seat 15, and safety light curtain 18 are commercially available devices known to those skilled in the art. Here, we are simply using them without making any structural or functional improvements, and we will not elaborate further.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating device for the upper and lower heating plates of a cardboard production line, characterized in that, The system includes a main frame (1), a hydraulic cylinder (2), a telescopic rod (3), an upper heating plate (4), a hollow base frame (5), a lower heating plate (6), guide sleeves (7), a slide (8), an internal threaded groove connecting frame (9), a reciprocating motor (10), and a threaded rod (11). The bottom middle of the main frame (1) is connected to the bottom end of the hollow base frame (5), and the top of the hollow base frame (5) is connected to the bottom middle of the lower heating plate (6). A set of guide sleeves (7) is provided on the left and right sides of the lower heating plate (6). The inner wall of each set of guide sleeves (7) is slidably connected to the outer wall of a set of slides (8). The bottom sides of the two sets of slides (8) are respectively connected to the inner wall of the slides. The screw groove connecting frame (9) is connected to the left and right sides. The top of the hollow base frame (5) is connected to the top of the reciprocating motor (10). The bottom output end of the reciprocating motor (10) is connected to the top of the threaded rod (11). The threaded rod (11) is vertically rotated inside the hollow base frame (5). The top of the main frame (1) is connected to the top of the hydraulic cylinder (2). The output end of the hydraulic cylinder (2) is slidably connected to the outside of the telescopic rod (3). The bottom end of the telescopic rod (3) is connected to the middle of the top of the upper heating plate (4). It also includes an oil injection nozzle (12). The lower middle part of the outer side of each set of guide sleeves (7) is connected to the inner side of a set of oil injection nozzles (12).

2. The heating device for the upper and lower heating plates of the cardboard production line according to claim 1, characterized in that: It also includes an oil filling cap (13), the outer side of the oil filling nozzle (12) and the inner side of the oil filling cap (13) can be detachably installed.

3. The heating device for the upper and lower heating plates of the cardboard production line according to claim 1, characterized in that: It also includes a lighting lamp (14), which is connected to the rear side of the internal rear center of the main frame (1).

4. The heating device for the upper and lower heating plates of the cardboard production line according to claim 1, characterized in that: It also includes a connecting seat (15) and an information board (16). The upper front part of the main frame (1) is connected to the top side of the connecting seat (15), and the front side of the connecting seat (15) is connected to the rear side of the information board (16).

5. The heating device for the upper and lower heating plates of the cardboard production line according to claim 1, characterized in that: It also includes a grating bracket (17) and a safety grating (18). The lower left and right ends of the front part of the main frame (1) are respectively connected to the bottom of a set of grating brackets (17), and a pair of safety gratings (18) are provided on the inner side of the two sets of grating brackets (17).

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