Stretching oven for packing belt

Abstract

The utility model relates to the technical field of stretching drying oven processing, and discloses a stretching drying oven for a packing belt, which comprises a stretching drying oven and an air inlet box arranged on the upper surface of the stretching drying oven, air inlet holes are formed in the side walls of the periphery of the air inlet box, and a conveying belt is arranged on the periphery of the air inlet box. A cleaning roller is rotationally connected to the lower portion of the conveying belt and can move in the moving direction of the conveying belt, a first gear is fixedly connected to the outer side of the cleaning roller, a rack is connected to the outer side of the first gear in a meshed mode, and the section of the rack is arranged to be shaped like a Chinese character'hui '; a cleaning rod is arranged on the outer side of the air inlet box, and a transmission assembly is arranged on the outer side of the air inlet box. And by arranging the cleaning roller, the cleaning roller is attached to the upper edge of the side wall of the air inlet box to do homocentric-square-shaped movement and rotate at the same time, and the air inlet holes in the side wall of the air inlet box are cleaned more thoroughly.

Description

Technical Field

[0001] The utility model relates to the field of stretching oven processing, in particular to a stretching oven for strapping tape. Background Art

[0002] PET strapping tape is a polyester strapping tape made of PET as the main raw material through extrusion and unidirectional stretching. It is a new type of environmentally friendly packaging material that replaces steel belts, steel wires, and heavy-duty PP strapping tapes. The heating and stretching forming process usually uses a stretching oven to stretch the tape blank. The stretching effect of the oven part has an extremely important influence on the quality of the strapping tape. In a traditional stretching oven, the strapping tape enters the box through the entrance, and after being heated by the heating tube in the box, it enters the next processing step from the exit.

[0003] In the prior art, in order to ensure that the strapping tape is heated evenly when being heated in a stretching oven, a fan is usually used to evenly disperse the hot air to any corner of the stretching oven. However, in actual operation, there is the following problem: the air inlet of the fan is easily clogged with dust during use, which affects the heat dissipation effect of the fan.

[0004] Therefore, it is necessary to provide a kind of strapping stretching oven to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to provide a stretching oven for strapping tape, so as to solve the problem that the air inlet of the fan of the prior art proposed in the above background technology is easily blocked by dust during use, thus affecting the heat dissipation effect of the fan.

[0006] Based on the above ideas, the utility model provides the following technical solutions: comprising a stretching oven, an air intake box installed on the upper surface of the stretching oven, and the air intake box is provided with air intake holes on the four side walls thereof, a conveyor belt is arranged around the air intake box, a cleaning roller is rotatably connected to the lower part of the conveyor belt, the cleaning roller can move along the moving direction of the conveyor belt, a first gear is fixedly connected to the outer side of the cleaning roller, a rack is meshingly connected to the outer side of the first gear, and the cross-sectional shape of the rack is set to be a circular shape;

[0007] A cleaning rod is arranged on the outside of the air intake box, and a transmission assembly is arranged on the outside of the air intake box.

[0008] As a further solution of the utility model: a transmission motor is arranged on the upper surface of the air intake box, and a transmission roller is detachably connected to the output end of the transmission motor, the number of the transmission rollers is set to four, and the conveyor belt is arranged outside the four transmission rollers;

[0009] Four support plates are fixedly connected to the upper surface of the air intake box, the transmission roller passes through the support plates and rotates with them, and the transmission motor is fixedly connected to the upper surface of one of the support plates.

[0010] As a further solution of the utility model: the upper surface of the air intake box is detachably connected to two support plates, and the two support plates are respectively fixedly connected to both sides of the rack.

[0011] As a further solution of the utility model: the transmission assembly includes a second gear, the second gear is detachably connected to the outside of the cleaning roller, the outside of the cleaning rod is detachably connected to a third gear, and the second gear is meshed with the third gear;

[0012] The second gear is arranged below the first gear.

[0013] As a further solution of the utility model: an arc-shaped support plate is detachably connected to the upper surface of the air intake box, and the cleaning rod passes through the arc-shaped support plate and rotates with it.

[0014] As a further solution of the utility model: a driving motor is detachably connected to the upper surface of the air intake box, a fan blade is connected to the output end of the driving motor, and the output shaft of the driving motor passes through the air intake box and extends into the interior thereof.

[0015] As a further solution of the utility model: the cleaning roller can move in contact with the surrounding side wall surfaces of the air intake box.

[0016] Compared with the prior art, the utility model has the beneficial effect that, by arranging a cleaning roller, the cleaning roller is attached to the side wall of the air intake box and moves in a U-shape while rotating, so that the air intake holes on the side wall of the air intake box are cleaned more thoroughly.

[0017] Compared with the prior art, the beneficial effect of the utility model is that the cleaning rod is driven to rotate by the rotation of the second gear, so that the cleaning roller is at the intersection with the cleaning rod, and the cleaning rod rotates to hit the dust remaining on the surface of the cleaning roller after wiping the air inlet hole, thereby knocking off the dust on the surface of the cleaning roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a main structural schematic diagram of the utility model;

[0020] Figure 2 This utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0021] Figure 3 This is a schematic diagram of the cleaning roller structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the conveyor belt of the utility model.

[0023] In the figure: 1. air inlet box; 2. conveyor belt; 3. cleaning roller; 4. first gear; 5. rack; 6. cleaning rod; 7. transmission motor; 8. transmission roller; 9. support plate; 10. second gear; 11. third gear; 12. arc support plate; 13. support plate; 14. air inlet hole; 15. drive motor; 16. stretching oven. DETAILED DESCRIPTION

[0024] like Figures 1 to 4 As shown, a stretching oven for strapping tape comprises a stretching oven 16, an air intake box 1 installed on the upper surface of the stretching oven 16, and air intake holes 14 are opened on the four side walls of the air intake box 1, a conveyor belt 2 is arranged around the air intake box 1, a cleaning roller 3 is rotatably connected under the conveyor belt 2, and the cleaning roller 3 can move along the movement direction of the conveyor belt 2, a first gear 4 is fixedly connected to the outer side of the cleaning roller 3, a rack 5 is meshingly connected to the outer side of the first gear 4, and the cross-sectional shape of the rack 5 is set to be a circular shape; a cleaning rod 6 is arranged on the outer side of the air intake box 1, and a transmission assembly is arranged on the outer side of the air intake box 1.

[0025] A transmission motor 7 is arranged on the upper surface of the air intake box 1, and a transmission roller 8 is detachably connected to the output end of the transmission motor 7. The number of the transmission rollers 8 is set to four, and the conveyor belt 2 is arranged on the outside of the four transmission rollers 8; four support plates 9 are fixedly connected to the upper surface of the air intake box 1, and the transmission rollers 8 penetrate the support plates 9 and rotate with them. The transmission motor 7 is fixedly connected to the upper surface of one of the support plates 9.

[0026] like Figure 4 As shown, two support plates 13 are detachably connected to the upper surface of the air intake box 1, and the two support plates 13 are respectively fixedly connected to both sides of the rack 5. The arrangement of the two support plates 13 facilitates the support of the rack 5, making the rack 5 more stable.

[0027] During specific operation, generally, due to the upward movement of hot air, the fan in the stretching oven 16 is arranged above the stretching oven 16, and the position of the air inlet hole 14 on the air inlet box 1 is relatively high, which is inconvenient for the operator to clean. The transmission motor 7 can be started regularly to drive one of the transmission rollers 8 to rotate, and the transmission roller 8 and the conveyor belt 2 can cooperate with each other to drive the conveyor belt 2 to move in a U-shaped manner. While the conveyor belt 2 moves, it can move in a U-shaped manner together with the cleaning roller 3 that rotates in coordination with it, and the cleaning roller 3 can move in contact with the surrounding side wall surfaces of the air inlet box 1, so that the cleaning roller 3 can move in contact with the air inlet hole 14 opened on the air inlet box 1, thereby cleaning the dust on the air inlet hole 14;

[0028] While the cleaning roller 3 moves in a U-shape, it can drive the first gear 4 to move in a U-shape. While the first gear 4 moves, it is acted upon by the meshing force of the rack 5 which is also in a U-shape and is located outside the first gear 4, causing the first gear 4 to rotate. The rotation of the first gear 4 drives the cleaning roller 3 to rotate, so that the cleaning roller 3 fits against the side wall of the air intake box 1, moves in a U-shape and rotates at the same time, so that the air intake hole 14 on the side wall of the air intake box 1 is cleaned more thoroughly.

[0029] like Figure 1 As shown, a driving motor 15 is detachably connected to the upper surface of the air intake box 1, and a fan blade is connected to the output end of the driving motor 15. The output shaft of the driving motor 15 passes through the air intake box 1 and extends to the inside thereof. Through the setting of the fan blade, the temperature in the stretching oven 16 can be dispersed to the corners, thereby improving the uniformity of heating of the packaging belt.

[0030] like Figure 3 to Figure 4 As shown, the transmission assembly includes a second gear 10, which is detachably connected to the outside of the cleaning roller 3, and a third gear 11 is detachably connected to the outside of the cleaning rod 6, and the second gear 10 is meshedly connected with the third gear 11;

[0031] The second gear 10 is arranged below the first gear 4. An arc-shaped support plate 12 is detachably connected to the upper surface of the air intake box 1, and the cleaning rod 6 penetrates the arc-shaped support plate 12 and rotates with it.

[0032] During specific operation, the cleaning roller 3 moves and rotates in a U-shape while driving the second gear 10 to follow the same motion trajectory. When the second gear 10 moves to the position of the third gear 11, since the third gear 11 is located at the arc position of the conveyor belt 2, and the cleaning roller 3 moves to the corner where one of the transmission rollers 8 is close to the third gear 11, since the four corners of the conveyor belt 2 are all set as arc surfaces, at this position, the movement of the cleaning roller 3 is in an arc shape, and the moving speed of the cleaning roller 3 along the conveyor belt 2 is much smaller than the rotation speed of the cleaning roller 3. Therefore, the second gear 10 can be meshed with the third gear 11, and the rotation of the second gear 10 drives the third gear 11 to rotate, and the rotation of the third gear 11 drives the cleaning rod 6 to rotate, so that the cleaning roller 3 is at the intersection with the cleaning rod 6, and the cleaning rod 6 rotates to hit the dust remaining on the surface of the cleaning roller 3 after wiping the air inlet 14, and the dust on the surface of the cleaning roller 3 is knocked off.

Claims

1. A stretching oven for strapping tape, comprising a stretching oven (16), an air inlet box (1) mounted on the upper surface of the stretching oven (16), and air inlet holes (14) are provided on the four side walls of the air inlet box (1), characterized in that: The air intake box (1) is provided with a conveyor belt (2) around it, a cleaning roller (3) is rotatably connected to the bottom of the conveyor belt (2), the cleaning roller (3) can move along the movement direction of the conveyor belt (2), a first gear (4) is fixedly connected to the outside of the cleaning roller (3), a rack (5) is meshingly connected to the outside of the first gear (4), and the cross-sectional shape of the rack (5) is set to be a circular shape; A cleaning rod (6) is arranged on the outside of the air intake box (1), and a transmission assembly is arranged on the outside of the air intake box (1).

2. A stretching oven for strapping according to claim 1, characterized in that: A transmission motor (7) is arranged on the upper surface of the air intake box (1), and a transmission roller (8) is detachably connected to the output end of the transmission motor (7), the number of the transmission rollers (8) is set to four, and the conveyor belt (2) is arranged outside the four transmission rollers (8); Four support plates (9) are fixedly connected to the upper surface of the air intake box (1); the transmission roller (8) passes through the support plates (9) and rotates in cooperation therewith; and the transmission motor (7) is fixedly connected to the upper surface of one of the support plates (9).

3. A stretching oven for strapping according to claim 1, characterized in that: The upper surface of the air intake box (1) is detachably connected to two support plates (13), and the two support plates (13) are respectively fixedly connected to two sides of the rack (5).

4. A stretching oven for strapping according to claim 1, characterized in that: The transmission assembly comprises a second gear (10), the second gear (10) is detachably connected to the outside of the cleaning roller (3), the outside of the cleaning rod (6) is detachably connected to a third gear (11), and the second gear (10) and the third gear (11) are meshingly connected; The second gear (10) is arranged below the first gear (4).

5. The stretching oven for strapping according to claim 1, characterized in that: The upper surface of the air intake box (1) is detachably connected with an arc-shaped support plate (12), and the cleaning rod (6) passes through the arc-shaped support plate (12) and rotates in cooperation with the arc-shaped support plate (12).

6. A stretching oven for strapping according to claim 1, characterized in that: The upper surface of the air intake box (1) is detachably connected to a drive motor (15), the output end of the drive motor (15) is connected to a fan blade, and the output shaft of the drive motor (15) passes through the air intake box (1) and extends into the interior thereof.

7. A stretching oven for strapping according to claim 1, characterized in that: The cleaning roller (3) can move in contact with the surrounding side wall surfaces of the air intake box (1).

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