Warming and preheating device for sheet extrusion production line

Abstract

The utility model relates to the technical field of sheet production lines, and discloses a heating and preheating device for a sheet extrusion production line, which comprises a preheating table mounted on one side of the sheet extrusion production line, a heat preservation cover mounted at the top of the preheating table, a water storage cavity formed in the preheating table, and a heating pipe mounted at the bottom of the inner wall of the water storage cavity. A temperature switch is installed on the top of the inner wall of the water storage cavity, a supporting frame is installed on one side of the preheating table, a second belt wheel is driven by a motor output shaft to rotate, a first belt wheel and a tensioning wheel are made to rotate, the first belt wheel drives a plurality of rotating shafts to rotate in the same direction, and meanwhile the rotating shafts drive a plurality of conveying rollers to rotate. At the moment, sheets of different widths can be placed on the tops of the conveying rollers, the sheets of different widths can be conveyed, the preheating table can adapt to the sheets of different widths through the multiple conveying rollers and the corresponding rotating shafts, the preheating table can process the sheets of various widths, equipment does not need to be replaced or adjusted, and the universality of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet production lines, in particular to a heating and preheating device for a sheet extrusion production line. Background Art

[0002] Sheet material refers to a material that has resin or monomers directly polymerized during processing as the main component, with plasticizers, fillers, lubricants, colorants and other additives as auxiliary components, and can flow into shape during processing.

[0003] In a Chinese patent with authorization announcement number CN219706033U, a heating and preheating device for a PET sheet extrusion production line is disclosed, comprising a preheating table and a heat preservation cover fixedly arranged on the preheating table, a heating cavity is provided inside the preheating table, and evenly distributed electric heating tubes are installed at the bottom of the inner wall of the heating cavity, a temperature detector is fixedly installed on one side of the inner wall of the heating cavity, a heat conduction plate extending to the inside of the heating cavity is fixedly installed in the middle of the top of the preheating table, and assembly grooves are provided on both sides of the top of the preheating table. The utility model discloses a heating and preheating device for a PET sheet extrusion production line. The heating and preheating device for the PET sheet production line adopts a preheating table with a guide structure to realize the transportation and heating and preheating of PTE sheets, transfers heat by water bath heat conduction, has accurate and fast temperature control, high heating and preheating efficiency, simple and convenient operation, and does not require staff to frequently take and place and transport PTE sheets, thereby reducing labor, being more comfortable, and being conducive to improving the production efficiency of the PET sheet production line.

[0004] The above patent has the following defects: in the above patent, when the sheet is placed on the upper side of the preheating table, the width of the two belt conveyors is fixed, and only sheets of fixed width can be conveyed. When the width of the sheet to be preheated is narrow, the sheet cannot be conveyed, resulting in poor versatility of the heating and preheating device. For this reason, a heating and preheating device for a sheet extrusion production line is proposed. Utility Model Content

[0005] The utility model aims to provide a heating and preheating device for a sheet extrusion production line to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heating preheating device for a sheet extrusion production line, comprising a preheating table installed on one side of the sheet extrusion production line, a heat preservation cover installed on the top of the preheating table, a water storage cavity opened inside the preheating table, a heating pipe installed at the bottom of the inner wall of the water storage cavity, a temperature switch installed on the top of the inner wall of the water storage cavity, a support frame installed on one side of the preheating table, two dust sticking rollers are arranged on one side of the support frame, a conveying assembly is arranged on one side of the dust sticking roller, and an adjusting assembly is arranged on one side of the conveying assembly;

[0007] The conveying assembly comprises a mounting frame and a plurality of rotating shafts, a conveying roller for conveying sheets is sleeved on the outer side of the rotating shaft, and a motor is installed on one side of the top of the mounting frame.

[0008] Preferably, a water supply pipe is installed on the top of one side of the preheating table, and a drain pipe is installed on the bottom of the preheating table. Both the water supply pipe and the drain pipe are connected to the water storage chamber. Ball valves are installed on the water supply pipe and the drain pipe. The output end of the temperature switch is electrically connected to the input end of the heating tube.

[0009] Preferably, a first pulley is fixed at one end of the above-mentioned several rotating shafts, a second pulley is fixed at the output shaft end of the motor, and several tensioning pulleys are rotatably connected to one side of the support frame through bearings, and a belt is connected between the tensioning pulley, the first pulley and the second pulley.

[0010] Preferably, one side of the mounting frame is mounted on the inner side wall of the supporting frame, and the rotating shaft is rotatably connected to the one side of the supporting frame via a bearing.

[0011] Preferably, the adjustment assembly comprises two fixing frames, each of which has a slide groove on one side, a slide rod being fixed to the inner wall of one of the slide grooves, and a screw rod being rotatably connected to the inner wall of the other slide groove via a bearing.

[0012] Preferably, a slider is slidably connected to the inner side of the slide groove, one side of one of the sliders is movable through the outer side of the slide rod, and one side of the other slider is threadedly connected to the outer side of the screw rod.

[0013] Preferably, a handwheel is fixed on the top of the screw rod, the bottom of the fixing frame is fixed to the top side of the supporting frame, one of the dust-sticking rollers is rotatably connected between the two sliders through a bearing, and the other dust-sticking roller is rotatably connected to the inner wall of the supporting frame through a bearing.

[0014] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0015] 1. The second pulley is driven to rotate by the motor output shaft, which respectively rotates the first pulley and the tensioning pulley. The first pulley drives multiple shafts to rotate in the same direction. At the same time, the multiple shafts drive multiple conveying rollers to rotate. At this time, sheets of different widths can be placed on the top of the conveying rollers, and sheets of different widths can be conveyed. Through multiple conveying rollers and their corresponding shafts, sheets of different widths can be adapted, so that the preheating table can handle sheets of various widths without replacing or adjusting the equipment, thereby improving the versatility of the equipment.

[0016] 2. By turning the hand wheel clockwise or counterclockwise, the screw rod is threadedly connected to the slider, so that the sticky roller on one side of the adjustment component is at different heights to adapt to sheets of different thicknesses. The sticky roller can stick to sheets of different thicknesses. The dust removal function of the sticky roller can prevent dust or impurities from being adsorbed on the top of the preheating table, thereby ensuring the cleanliness of the sheet and the preheating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0020] Figure 3 It is a left-side structural schematic diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the water storage chamber of the utility model.

[0023] Explanation of the reference numerals: 1. Preheating table; 2. Conveying assembly; 21. First pulley; 22. Second pulley; 23. Tensioning pulley; 24. Mounting frame; 25. Motor; 26. Conveying roller; 27. Rotating shaft; 3. Adjusting assembly; 31. Hand wheel; 33. Sliding block; 34. Sliding rod; 35. Slide groove; 36. Fixed frame; 37. Screw rod; 4. Dust-sticking roller; 5. Support frame; 6. Water supply pipe; 7. Drain pipe; 8. Insulation cover; 9. Temperature switch; 10. Water storage chamber; 11. Heating pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0026] Example

[0027] See also Figure 1-5 The utility model provides a technical solution: a heating and preheating device for a sheet extrusion production line, comprising a preheating table 1 installed on one side of the sheet extrusion production line, a heat preservation cover 8 installed on the top of the preheating table 1, a water storage chamber 10 is opened inside the preheating table 1, a water adding pipe 6 fills water into the inner side of the water storage chamber 10 inside the preheating table 1, a heating pipe 11 is installed at the bottom of the inner wall of the water storage chamber 10, a temperature switch 9 is installed on the top of the inner wall of the water storage chamber 10, a water adding pipe 6 is installed on the top of one side of the preheating table 1, a drain pipe 7 is installed at the bottom of the preheating table 1, the water adding pipe 6 and the drain pipe 7 are both connected to the water storage chamber 10, a ball valve is installed on the water adding pipe 6 and the drain pipe 7, an output end of the temperature switch 9 is electrically connected to the input end of the heating pipe 11, a support frame 5 is installed on one side of the preheating table 1, two dust sticking rollers 4 are arranged on one side of the support frame 5, the dust sticking roller 4 is used to remove dust from the sheet, a conveying component 2 is arranged on one side of the dust sticking roller 4, and an adjusting component 3 is arranged on one side of the conveying component 2;

[0028] In order to facilitate the conveying of sheets of different widths, a conveying assembly 2 is provided, which includes a mounting frame 24 and a plurality of rotating shafts 27. A conveying roller 26 for conveying sheets is sleeved on the outer side of the rotating shaft 27. The output shaft of the motor 25 drives the second pulley 22 to rotate, and the second pulley 22 drives the belt to rotate. The first pulley 21 and the tensioning wheel 23 are respectively rotated through the belt connection. When the first pulley 21 rotates, the first pulley 21 drives the plurality of rotating shafts 27 to rotate in the same direction. A motor 25 is installed on one side of the top of the mounting frame 24. The first pulley 21 is fixed at one end of the plurality of rotating shafts 27, and the second pulley 22 is fixed at the output shaft end of the motor 25.

[0029] One side of the support frame 5 is rotatably connected to a plurality of tensioning wheels 23 through bearings, and a belt is connected between the tensioning wheel 23, the first pulley 21 and the second pulley 22. A plurality of rotating shafts 27 drive a plurality of conveying rollers 26 to rotate, and sheets of different widths can be placed on the top of the conveying rollers 26, so that sheets of different widths can be conveyed. Through a plurality of conveying rollers 26 and their corresponding rotating shafts 27, sheets of different widths can be accommodated. One side of the mounting frame 24 is mounted on the inner side wall of the support frame 5, and the rotating shaft 27 is rotatably connected to one side of the support frame 5 through a bearing, so that the preheating table 1 can process sheets of various widths without replacing or adjusting the equipment, thereby improving the versatility of the equipment.

[0030] In order to facilitate the cleaning of the sheet surface, an adjustment component 3 is provided. The adjustment component 3 includes two fixing frames 36. A slide groove 35 is provided on one side of the two fixing frames 36. A slide rod 34 is fixed to the inner wall of one of the slide grooves 35. A screw rod 37 is rotatably connected to the inner wall of the other slide groove 35 through a bearing. The hand wheel 31 only needs to be rotated clockwise or counterclockwise. At this time, the hand wheel 31 drives the screw rod 37 to rotate, and the screw rod 37 is threadedly connected to the slider 33 through the screw rod 37, so that the dust sticking roller 4 on one side of the adjustment component 3 is at different heights. A slider 33 is slidably connected to the inner side of the slide groove 35. One side of the slider 33 is movable and passes through the outer side of the slider 34, and one side of the other slider 33 is threadedly connected to A hand wheel 31 is fixed to the top of the screw rod 37 on the outside of the screw rod 37. The upper dust-sticking roller 4 is adjusted to different heights, and the surface of the dust-sticking roller 4 with different thicknesses can be dust-removed to prevent dust or impurities from sticking to the surface of the sheet. The dust or impurities are adsorbed on the top of the preheating table 1. The bottom of the fixed frame 36 is fixed to one side of the top of the support frame 5. One of the dust-sticking rollers 4 is rotatably connected between the two sliders 33 through a bearing, and the other dust-sticking roller 4 is rotatably connected to the inner side wall of the support frame 5 through a bearing, so that the dust-sticking roller 4 can stick dust to sheets of different thicknesses. Through the dust removal effect of the dust-sticking roller 4, dust or impurities can be prevented from being adsorbed on the top of the preheating table 1, thereby ensuring the cleanliness of the sheet and the preheating effect.

[0031] Working principle: when it is necessary to preheat the sheet, water is added to the inner side of the water storage chamber 10 inside the preheating table 1 through the water adding pipe 6, and the heating pipe 11 is connected to the municipal power supply of the control switch. When it is necessary to preheat the sheet, the switch is pressed to start the motor 25. At this time, the output shaft of the motor 25 drives the second pulley 22 to rotate, and the second pulley 22 drives the belt to rotate. Through the belt connection, the first pulley 21 and the tensioning pulley 23 are respectively rotated. When the first pulley 21 rotates, the first pulley 21 drives multiple shafts 27 to rotate in the same direction. At the same time, the multiple shafts 27 drive multiple conveying rollers 26 to rotate. At this time, sheets of different widths can be placed on the top of the conveying rollers 26, and sheets of different widths can be conveyed. Through multiple conveying rollers 26 and their corresponding shafts 27, sheets of different widths can be adapted, so that the preheating table 1 can process sheets of various widths without replacing or adjusting the equipment, thereby improving the versatility of the equipment.

[0032] When the sheet is being conveyed, since the sheet has different thicknesses, when preheating the sheet metal of different thicknesses, it is only necessary to rotate the hand wheel 31 clockwise or counterclockwise. At this time, the hand wheel 31 drives the screw rod 37 to rotate, and the screw rod 37 is threadedly connected with the slider 33, so that the dust sticking roller 4 located on one side of the adjustment component 3 is at different heights. At this time, the dust sticking roller 4 on the upper side is adjusted to be at different heights, and the surface of the dust sticking roller 4 with different thicknesses can be dusted off to avoid dust or impurities on the surface of the sheet, and the dust or impurities are adsorbed on the top of the preheating table 1. By rotating the hand wheel 31 clockwise or counterclockwise, the height of the dust sticking roller 4 can be easily adjusted to adapt to sheets of different thicknesses, so that the dust sticking roller 4 can adhere to sheets of different thicknesses. Through the dust removal effect of the dust sticking roller 4, dust or impurities can be prevented from being adsorbed on the top of the preheating table 1, thereby ensuring the cleanliness of the sheet and the preheating effect.

[0033] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A heating and preheating device for a sheet extrusion production line, comprising a preheating table (1) installed on one side of the sheet extrusion production line, characterized in that: A heat preservation cover (8) is installed on the top of the preheating table (1), a water storage chamber (10) is provided inside the preheating table (1), a heating pipe (11) is installed at the bottom of the inner wall of the water storage chamber (10), a temperature switch (9) is installed at the top of the inner wall of the water storage chamber (10), a support frame (5) is installed on one side of the preheating table (1), two dust sticking rollers (4) are arranged on one side of the support frame (5), a conveying component (2) is arranged on one side of the dust sticking roller (4), and an adjusting component (3) is arranged on one side of the conveying component (2); The conveying assembly (2) comprises a mounting frame (24) and a plurality of rotating shafts (27), the outer side of the rotating shaft (27) is sleeved with a conveying roller (26) for conveying sheets, and a motor (25) is installed on one side of the top of the mounting frame (24).

2. The heating and preheating device for a sheet extrusion production line according to claim 1 is characterized in that: A water supply pipe (6) is installed on the top of one side of the preheating table (1), and a drainage pipe (7) is installed on the bottom of the preheating table (1). The water supply pipe (6) and the drainage pipe (7) are both connected to the water storage chamber (10). Ball valves are installed on the water supply pipe (6) and the drainage pipe (7). The output end of the temperature switch (9) is electrically connected to the input end of the heating pipe (11).

3. The heating and preheating device for a sheet extrusion production line according to claim 1 is characterized in that: A first pulley (21) is fixed to one end of each of the rotating shafts (27), a second pulley (22) is fixed to the output shaft end of the motor (25), and a plurality of tensioning wheels (23) are rotatably connected to one side of the support frame (5) via a bearing, and a belt is connected between the tensioning wheel (23), the first pulley (21) and the second pulley (22).

4. The heating and preheating device for a sheet extrusion production line according to claim 3 is characterized in that: One side of the mounting frame (24) is mounted on the inner side wall of the support frame (5), and the rotating shaft (27) is rotatably connected to one side of the support frame (5) via a bearing.

5. The heating and preheating device for a sheet extrusion production line according to claim 1, characterized in that: The adjustment assembly (3) comprises two fixing frames (36), one side of each of the two fixing frames (36) is provided with a slide groove (35), an inner wall of one of the slide grooves (35) is fixed with a slide rod (34), and an inner wall of the other slide groove (35) is rotatably connected with a screw rod (37) via a bearing.

6. A heating and preheating device for a sheet extrusion production line according to claim 5, characterized in that: A slider (33) is slidably connected to the inner side of the slide groove (35), one side of one of the sliders (33) movably passes through the outer side of the slide rod (34), and one side of the other slider (33) is threadedly connected to the outer side of the screw rod (37).

7. A heating and preheating device for a sheet extrusion production line according to claim 6, characterized in that: A hand wheel (31) is fixed to the top of the screw rod (37), the bottom of the fixing frame (36) is fixed to one side of the top of the support frame (5), one of the dust-sticking rollers (4) is rotatably connected between the two sliders (33) via a bearing, and the other dust-sticking roller (4) is rotatably connected to the inner wall of the support frame (5) via a bearing.

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