Cup bottom hot air device of paper cup machine

Abstract

The utility model relates to the field of paper cup machines, and discloses a cup bottom hot air device of a paper cup machine, which comprises a heating cover and a hot air generating device, a cavity allowing the bottom of a cup to enter is arranged in the heating cover, a hot air head is arranged at the bottom of the cavity, and the bottom of the hot air head is fixedly connected with a hot air guide pipe. The outlet end of the air outlet pipe communicates with the hot air guide pipe, and the hot air guide pipe can ascend and descend relative to the hot air production device and is used for adjusting the size of an air path communicating between the air production pipe and the hot air guide pipe. The hot air head is installed at the top of the hot air guide pipe, and the hot air guide pipe is driven to move while the hot air head is driven to ascend and descend. The lifting motion of the hot air guide pipe can directly determine the size of an air path communicated between the air outlet pipe and the hot air guide pipe, so that the heating of the heating cover and the operation of the heating cover can be synchronously carried out, the coordination of equipment operation can be improved, and an additional control device is not needed to control the air volume.

Description

Technical Field

[0001] The utility model relates to the field of paper cup machines, in particular to a cup bottom hot air device of the paper cup machine. Background Art

[0002] A paper cup machine is a device specially used for the production and processing of paper cups. The bottom of the paper cup needs to be heated during the forming process. The traditional hot air assembly adopts an integrated hot air device, in which the hot air head and the hot air generating device are both arranged on a mounting base. The hot air head assembly moves up and down as the mounting base moves up and down, thereby blowing hot air to the bottom of the paper cup on the heating cover. This integrated assembly makes the heater extremely easy to be damaged during the up and down movement, and continuous heating of the heating cover will cause the mold to overheat, resulting in adhesion of the paper sheet to the mold, affecting the cup removal and being detrimental to production. Summary of the Invention

[0003] The utility model aims at the shortcomings of the prior art and provides a cup bottom hot air device for a paper cup machine.

[0004] To solve the above technical problems, the present invention is solved by the following technical solutions:

[0005] The hot air device at the bottom of the paper cup machine includes a heating hood and a hot air generating device. A cavity for the bottom of the cup to enter is provided in the heating hood. A hot air head is provided at the bottom of the cavity. A hot air duct is fixedly connected to the bottom of the hot air head. The hot air generating device includes an air outlet pipe. The outlet end of the air outlet pipe is connected to the hot air duct. The hot air duct can be raised and lowered relative to the hot air generating device to adjust the size of the air path connecting the air outlet pipe and the hot air duct. The hot air head is installed on the top of the hot air duct, and driving the movement of the hot air duct also drives the lifting and lowering movement of the hot air head. The lifting and lowering movement of the hot air duct can directly determine the size of the air path connecting the air outlet pipe and the hot air duct, so that the heating of the heating hood and the operation of the heating hood can be synchronized, which can improve the coordination of the equipment operation and does not require additional control devices to control the air volume.

[0006] Preferably, an adjustment seat is fixedly installed at the outlet end of the hot air generating device, and the hot air duct is slidably arranged in the adjustment seat. The adjustment seat has a sealed cavity, and the cavity connects the hot air duct and the hot air generating device.

[0007] Preferably, when the hot air duct descends, the air outlet pipe is partially blocked to adjust the size of the air path. The size of the air path determines the air output of the hot air generating device, and the size of the air path is proportional to the degree of heating of the heating cover.

[0008] Preferably, a regulating valve is provided at the outlet duct of the hot air generating device. The hot air conduit is connected to the regulating valve. The upward and downward movement of the hot air conduit drives the regulating valve to change its opening. The opening of the regulating valve determines the size of the air path of the outlet duct, and thus the output volume of the hot air. The purpose is to achieve an increase in the output volume when the hot air head is raised, and a decrease in the output volume when the hot air head is lowered.

[0009] Preferably, the adjustment seat includes a limiting portion at the top and a lateral connecting portion, the bottom of the hot air duct is inserted into the limiting portion and can extend into the cavity of the adjustment seat, the inner wall of the limiting portion is provided with a bearing sleeve for slidingly guiding the hot air duct, and the connecting portion is connected to the air outlet pipe.

[0010] Preferably, a duct fixing seat is fixedly installed outside the hot air duct, and the duct fixing seat is connected to a lifting power source.

[0011] Preferably, the hot air generating device includes a fixed mounting plate for fixing to the frame.

[0012] Preferably, a cold air duct for introducing cold air is provided on the side of the hot air generating device away from the hot air duct.

[0013] Preferably, a fixing plate is provided at the bottom of the adjustment seat, secured to the adjustment seat by connecting bolts. An adjustment spring is sleeved onto the connecting bolts at the bottom of the fixing plate. The spring is used to adjust for assembly errors. When the lifting power source drives the hot air duct downward, the heating hood and heat sealing head above the hot air duct also press downward simultaneously. The spring acts as a buffer, and the fixing plate, which is fixed to the frame, can be slightly twisted up and down to maintain parallelism with the frame platform, thereby extending the service life of the equipment.

[0014] As preferably, the heating cover is provided with an outlet for hot air to be discharged on the hot air head opposite side. When the hot air heats the heating cover, the outlet also has hot air to be discharged to avoid the heating cover from overheating.

[0015] The utility model has significant technical effects due to the adoption of the above technical solutions:

[0016] 1. The partition design of the air path opens the air path when the hot air head moves upward, allowing the hot air to pass through the hot air head and heat the bottom of the cup. When the hot air head moves downward, the size of the air path is reduced, the hot air output is reduced, and the excessive heating of the heating cover or other parts is avoided, which also saves energy for equipment operation.

[0017] 2. Since the hot air duct is used to control the air output, the hot air duct and the hot air head rise and fall synchronously, so the hot air volume can be large when there is a paper cup. When there is no cup in the heating cover, the hot air duct is lowered to reduce the hot air volume, achieving the synchronous coordination of hot air volume and cup bottom preheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 It is a longitudinal sectional view of the present utility model.

[0020] Figure 3 It is a structural schematic diagram of the utility model from another angle.

[0021] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Heating hood; 11. Cavity; 12. Exhaust outlet; 2. Hot air generating device; 21. Air outlet pipe; 22. Regulating valve; 23. Fixed mounting plate; 24. Cold air pipe; 3. Hot air head; 4. Hot air duct; 41. Duct fixing seat; 5. Adjusting seat; 51. Limiting part; 52. Connecting part; 53. Bearing sleeve; 6. Fixing plate; 61. Connecting bolt; 62. Adjusting spring. DETAILED DESCRIPTION

[0022] The present invention is described in further detail below with reference to the accompanying drawings and embodiments.

[0023] Example 1

[0024] The hot air device at the bottom of the paper cup machine, such as Figure 1-3 As shown, it includes a heating cover 1 and a hot air generating device 2. A cavity 11 is provided in the heating cover 1 for the bottom of the cup to enter. A hot air head 3 is provided at the bottom of the cavity 11. A hot air duct 4 is fixedly connected to the bottom of the hot air head 3. The hot air generating device 2 includes an air outlet pipe 21. The outlet end of the air outlet pipe 21 is connected to the hot air duct 4. The hot air duct 4 can be raised and lowered relative to the hot air generating device 2 to adjust the size of the air path connected between the air outlet pipe 21 and the hot air duct 4.

[0025] like Figure 2 As shown, the adjustment seat 5 includes a limiting portion 51 at the top and a lateral connecting portion 52. The bottom of the hot air duct 4 is inserted into the limiting portion 51 and can extend into the cavity of the adjustment seat 5. The inner wall of the limiting portion 51 is provided with a bearing sleeve 53 for slidingly guiding the hot air duct 4. The connecting portion 52 is connected to the air outlet pipe 21.

[0026] A duct fixing seat 41 is fixedly installed outside the hot air duct 4 , and the duct fixing seat 41 is connected to a lifting power source.

[0027] like Figure 3 As shown, the hot air generating device 2 includes a fixed mounting plate 23 for securing to the frame. The fixed mounting plate 23 can be secured to the frame by bolts or by a clamp. The hot air generating device can be a heat gun, a hot air pump, or the like. A cold air duct 24 for introducing cold air is provided on the side of the hot air generating device 2 away from the hot air duct 4. Cold air is pumped into the cold air duct by an air pump. The hot air generating device 2 heats the cold air and then outputs the hot air through the outlet duct 21.

[0028] A fixing plate 6 is provided at the bottom of the adjustment seat 5 . The fixing plate 6 and the adjustment seat 5 are fixed by connecting bolts 61 . An adjusting spring 62 is sleeved on the connecting bolts 61 at a position located at the bottom of the fixing plate 6 .

[0029] The heating cover 1 is provided with an exhaust port 12 for exhausting hot air on the other side of the hot air head 3.

[0030] Working principle: In the pretreatment of forming and bonding the bottom of the paper cup, there will be one or more stations to preheat the bottom of the paper cup for its subsequent processing. Generally, hot air is used to heat the heating cover, and then the paper cup or the bottom of the paper cup is transferred to the hot air device for preheating.

[0031] An adjustment seat 5 is fixedly installed at the outlet end of the hot air generating device 2, and a hot air duct 4 is slidably arranged in the adjustment seat 5. The adjustment seat 5 has a sealed cavity, and the cavity connects the hot air duct 4 and the hot air generating device 2. One embodiment of adjusting the air output is that when the hot air duct 4 is lowered, part of the air outlet pipe 21 is blocked to adjust the size of the air path. Another embodiment is that a regulating valve 22 is provided at the air outlet pipe 21 of the hot air generating device 2, and the hot air duct 4 is connected to the regulating valve 22. The regulating valve can be a baffle type, blocking the outlet of the hot air generating device 2. The lifting movement of the hot air duct 4 drives the regulating valve 22 to operate and change the opening of the regulating valve 22. The purpose is to achieve an increase in the air output when the hot air head 3 rises, and a decrease in the air output when the hot air head 3 falls.

[0032] When there is a cup or a cup bottom on the heating cover 1, the heating cover 1 rises, and the hot air head 3 will contact the cup bottom for preheating, heating the cup bottom in the cavity 11, and the hot air generating device 2 continuously provides hot air. At this time, the exhaust port 12 also discharges hot air at the same time to avoid internal overheating; when there is no cup on the heating cover 1, when the heating cover 2 descends, the air outlet of the hot air generating device 2 is closed, which can reduce energy consumption and avoid overheating of the heating cover, which causes paper to stick. Maintaining a small amount of wind after the air outlet is closed can achieve a better heating effect on the mold.

[0033] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0034] In short, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention patent.

Claims

1. A cup bottom hot air device for a paper cup machine, comprising a heating cover (1) and a hot air generating device (2), wherein a cavity (11) for the cup bottom to enter is arranged in the heating cover (1), and a hot air head (3) is arranged at the bottom of the cavity (11), characterized in that: A hot air duct (4) is fixedly connected to the bottom of the hot air head (3); the hot air generating device (2) comprises an air outlet pipe (21); the outlet end of the air outlet pipe (21) is connected to the hot air duct (4); the hot air duct (4) can move up and down relative to the hot air generating device (2) to adjust the size of the air path connected between the air outlet pipe (21) and the hot air duct (4).

2. The cup bottom hot air device of the paper cup machine according to claim 1, characterized in that: An adjustment seat (5) is fixedly mounted at the outlet end of the hot air generating device (2), and a hot air duct (4) is slidably mounted in the adjustment seat (5). A sealed cavity is provided in the adjustment seat (5), and the cavity connects the hot air duct (4) and the hot air generating device (2).

3. The cup bottom hot air device of the paper cup machine according to claim 2, characterized in that: When the hot air duct (4) descends, it blocks part of the air outlet of the air outlet pipe (21) to adjust the size of the air path.

4. The cup bottom hot air device of the paper cup machine according to claim 2, characterized in that: An adjusting valve (22) is provided at the air outlet pipe (21) of the hot air generating device (2), and the hot air conduit (4) is connected to the adjusting valve (22). The lifting movement of the hot air conduit (4) drives the adjusting valve (22) to move, thereby changing the opening degree of the adjusting valve (22).

5. The cup bottom hot air device of the paper cup machine according to claim 2, characterized in that: The adjustment seat (5) comprises a limiting portion (51) at the top and a connecting portion (52) at the side; the bottom of the hot air duct (4) is inserted into the limiting portion (51) and can extend into the cavity of the adjustment seat (5); a bearing sleeve (53) for slidingly guiding the hot air duct (4) is provided on the inner wall of the limiting portion (51); and the connecting portion (52) is connected to the air outlet pipe (21).

6. The cup bottom hot air device of the paper cup machine according to claim 1, characterized in that: A duct fixing seat (41) is fixedly mounted outside the hot air duct (4), and the duct fixing seat (41) is connected to a lifting power source.

7. The cup bottom hot air device of the paper cup machine according to claim 1, characterized in that: The hot air generating device (2) comprises a fixed mounting plate (23) for being fixed to a frame.

8. The cup bottom hot air device of the paper cup machine according to claim 1, characterized in that: A cold air duct (24) for introducing cold air is provided on the side of the hot air generating device (2) away from the hot air duct (4).

9. The cup bottom hot air device of the paper cup machine according to claim 1, characterized in that: A fixing plate (6) is provided at the bottom of the adjusting seat (5), and the fixing plate (6) and the adjusting seat (5) are fixed via connecting bolts (61), wherein the connecting bolts (61) are sleeved with an adjusting spring (62) at a position located at the bottom of the fixing plate (6).

10. The cup bottom hot air device of the paper cup machine according to claim 1, characterized in that: The heating cover (1) is provided with an exhaust port (12) for exhausting hot air on the other side of the hot air head (3).

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