Hot air circulation mechanism and bottle blowing machine

Abstract

The utility model belongs to the technical field of plastic bottle blowing, and discloses a hot air circulating mechanism and a bottle blowing machine. The mechanism comprises a first heating assembly, a second heating assembly, a reflection box and an exhaust assembly, wherein the first heating assembly and the second heating assembly are arranged in parallel. The reflection box is arranged between the first heating assembly and the second heating assembly in parallel, a first heating area is formed between the reflection box and the first heating assembly, a second heating area is formed between the reflection box and the second heating assembly, and the reflection box can reflect heat generated by the first heating assembly to the first heating area. And the reflection box reflects heat generated by the second heating assembly to the second heating area, and can uniformly blow natural wind to the first heating assembly and the second heating assembly. And the air exhaust assembly is communicated with the first heating assembly and the second heating assembly and can discharge redundant heat in the first heating assembly and the second heating assembly to the outside. The hot air circulation mechanism can uniformly heat bottle blanks and ensure the forming quality of bottles.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle blowing, in particular to a hot air circulation mechanism and a bottle blowing machine. Background Art

[0002] A bottle blowing machine is a machine used for blowing bottles. It can blow plastic particles softened into liquid or finished bottle preforms into special bottle shapes through certain process means. During the blowing process, the bottle preform needs to be heated to a specific temperature by a heating mechanism for stretching. Although the heating mechanism in the prior art can heat the bottle preform, the heating effect is poor and it is difficult to achieve uniform heating of the bottle preform, resulting in uneven heating of the bottle preform, which affects the molding quality of the bottle. Utility Model Content

[0003] The utility model aims to provide a hot air circulation mechanism and a bottle blowing machine, which can evenly heat the bottle blank and ensure the molding quality of the bottle.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] On the one hand, a hot air circulation mechanism is provided, comprising:

[0006] A first heating component and a second heating component are arranged in parallel, wherein the first heating component and the second heating component can generate heat;

[0007] A reflective box is arranged in parallel between the first heating component and the second heating component, a first heating zone is formed between the reflective box and the first heating component, and a second heating zone is formed between the reflective box and the second heating component, the reflective box can reflect the heat generated by the first heating component to the first heating zone, and reflect the heat generated by the second heating component to the second heating zone, and the reflective box can evenly blow natural wind to the first heating component and the second heating component, and the preforms moving along the transmission direction can sequentially pass through the first heating zone and the second heating zone for blowing;

[0008] An exhaust component is connected to the first heating component and the second heating component, and the exhaust component can discharge excess heat in the first heating component and the second heating component to the outside.

[0009] Preferably, the reflective box includes a box body and a first exhaust fan arranged in the box body, and a plurality of first strip holes are arranged at equal intervals along the extension direction of the box body on one side facing the first heating zone and the second heating zone, and the first strip holes extend in the vertical direction, and a plurality of first exhaust fans are arranged at intervals along the extension direction of the box body, and the first exhaust fan is provided with a first air inlet and a first air outlet, the first air inlet is connected to the atmosphere, and the first air outlet is connected to the first heating zone and the second heating zone through the first strip holes.

[0010] Preferably, it also includes a cold air component, the first exhaust fan is provided with a second air inlet and a second air outlet, the top of the box body is relatively provided with a first guide channel and a second guide channel, the first guide channel and the second guide channel both extend along the extension direction of the reflection box, the second air inlet is connected with the cold air component, the second air outlet is connected with the first guide channel and the second guide channel, the cold air blown out by the cold air component can be transported to the first heating zone through the first guide channel, and can be transported to the second heating zone through the second guide channel.

[0011] Preferably, the reflective box also includes a reflective plate, and the reflective plate is provided on one side of the box body facing the first heating zone and the second heating zone, and the reflective plate is made of mirror stainless steel material. The reflective plate is provided with second strip holes corresponding to the first strip holes one by one, and the second strip holes have the same size as the first strip holes.

[0012] Preferably, the first heating component and the second heating component each include a plurality of heating boxes arranged in sequence, a heating element is provided on a side of the heating box facing the reflecting box, a power source is provided on a side of the heating box facing away from the reflecting box, and the power source is electrically connected to the heating element.

[0013] Preferably, the hot air circulation mechanism also includes a mounting frame, the exhaust assembly includes a connecting frame and a second exhaust fan arranged on the connecting frame, the connecting frame is arranged on the mounting frame, the second exhaust fan is arranged in a one-to-one correspondence with the heating box, and the air inlet of the second exhaust fan is connected to the heating box.

[0014] Preferably, each of the heating boxes is provided with a heat dissipation port, and excess heat in the heating box can be discharged to the outside through the heat dissipation port.

[0015] Preferably, a handle is provided on a side of the heating box facing away from the reflecting box.

[0016] Preferably, both ends of the first heating zone and the second heating zone are provided with heat-insulating baffles, and the heat-insulating baffles are provided with through holes for the preforms to pass through.

[0017] On the other hand, a bottle blowing machine is provided, comprising the above-mentioned hot air circulation mechanism, and also comprising a heat preservation mechanism and a conveying mechanism, wherein the heat preservation mechanism is arranged at one end of the hot air circulation mechanism and is used to keep the bottle blanks warm, and the conveying mechanism can convey the bottle blanks to the first heating zone, the heat preservation mechanism and the second heating zone in sequence.

[0018] Beneficial effects of the utility model:

[0019] The hot air circulation mechanism and bottle blowing machine provided by the utility model have a first heating component, a reflective box and a second heating component which are arranged in parallel in sequence, with a compact layout and reasonable spatial arrangement; the first heating component and the second heating component can generate heat to form a first heating zone and a second heating zone with the reflective box, and the preforms are blown through the first heating zone and the second heating zone in sequence, and such arrangement divides the blowing of the preforms into two sections, which is convenient for matching with other structures of the bottle blowing machine, and can also independently control the heating temperatures of the first heating zone and the second heating zone. The reflective box can reflect the heat generated by the first heating component and the second heating component, thereby ensuring the heating effect of the preforms, and when heating, the reflective box can blow natural wind to the first heating zone and the second heating zone, and the exhaust component can discharge the excess heat generated by the first heating component and the second heating component to the outside, thereby generating hot air circulation and achieving uniform heating of the preforms. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the hot air circulation mechanism provided by the utility model;

[0021] Figure 2 It is a side view of the reflection box of the hot air circulation mechanism provided by the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the exhaust assembly of the hot air circulation mechanism provided by the utility model;

[0023] Figure 4 It is a three-dimensional schematic diagram of a heating box of a hot air circulation mechanism provided by the utility model;

[0024] Figure 5 It is a structural schematic diagram of a bottle blowing machine provided by the utility model.

[0025] In the figure:

[0026] 10. Hot air circulation mechanism;

[0027] 1. First heating component; 2. Second heating component; 3. Reflection box; 31. Reflection plate; 32. Second strip hole; 4. First heating zone; 5. Second heating zone; 6. Exhaust assembly; 61. Connecting frame; 62. Second exhaust fan; 7. Heating box; 71. Heat dissipation port; 72. Heating element; 73. Power supply; 74. Handle; 8. Mounting frame;

[0028] 20. Heat preservation mechanism. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] See also Figures 1 to 4, this embodiment provides a hot air circulation mechanism, which can evenly heat the bottle blank to ensure the molding quality of the bottle. The mechanism includes a first heating component 1 and a second heating component 2, a reflective box 3 and an exhaust component 6 arranged in parallel. The first heating component 1 and the second heating component 2 can generate heat. The reflective box 3 is arranged in parallel between the first heating component 1 and the second heating component 2, and a first heating zone 4 is formed between the reflective box 3 and the first heating component 1, and a second heating zone 5 is formed between the reflective box 3 and the second heating component 2. The reflective box 3 can reflect the heat generated by the first heating component 1 to the first heating zone 4, and reflect the heat generated by the second heating component 2 to the second heating zone 5, and the reflective box 3 can evenly blow natural wind to the first heating component 1 and the second heating component 2, and the bottle blank moving along the transmission direction can pass through the first heating zone 4 and the second heating zone 5 in turn for blowing. The exhaust component 6 is connected to the first heating component 1 and the second heating component 2, and the exhaust component 6 can discharge the excess heat in the first heating component 1 and the second heating component 2 to the outside. See Figure 1 The conveying direction is that the preform moves from the X direction to the Y direction and then to the Z direction.

[0034] The hot air circulation mechanism provided in this embodiment has a first heating component 1, a reflective box 3 and a second heating component 2 arranged in parallel in sequence, with a compact layout and reasonable spatial arrangement; the first heating component 1 and the second heating component 2 can generate heat to form a first heating zone 4 and a second heating zone 5 with the reflective box 3, and the preforms pass through the first heating zone 4 and the second heating zone 5 in sequence for blowing, and such an arrangement divides the blowing of the preforms into two sections, which is convenient for adapting to other structures of the bottle blowing machine, and can also independently control the heating temperatures of the first heating zone 4 and the second heating zone 5. The reflective box 3 can reflect the heat generated by the first heating component 1 and the second heating component 2, thereby ensuring the heating effect of the preforms. During heating, the reflective box 3 can blow natural wind to the first heating zone 4 and the second heating zone 5, and the exhaust component 6 can discharge the excess heat generated by the first heating component 1 and the second heating component 2 to the outside, thereby generating hot air circulation and achieving uniform heating of the preforms.

[0035] Optionally, the reflective box 3 includes a box body and a first row fan arranged in the box body, and a plurality of first strip holes are evenly spaced along the extension direction of the box body on one side facing the first heating zone 4 and the second heating zone 5, and the first strip holes extend in the vertical direction, and a plurality of first row fans are spaced along the extension direction of the box body, and the first row fan is provided with a first air inlet and a first air outlet, the first air inlet is connected to the atmosphere, and the first air outlet is connected to the first heating zone 4 and the second heating zone 5 through the first strip hole. When the first row fan is started, natural wind can be delivered to the first heating zone 4 and the second heating zone 5 through the first air outlet and the first strip hole, and the first strip holes arranged at equal intervals can make the natural wind blow evenly to the first heating zone 4 and the second heating zone 5, thereby generating a uniform hot air circulation and achieving uniform heating of the preform. In this embodiment, three first row fans are provided.

[0036] Furthermore, a cold air component is also included. The first exhaust fan is provided with a second air inlet and a second air outlet. The top of the box body is relatively provided with a first guide channel and a second guide channel. Both the first guide channel and the second guide channel extend along the extension direction of the reflective box 3. The second air inlet is connected to the cold air component, and the second air outlet is connected to the first guide channel and the second guide channel. The cold air blown out by the cold air component can be transported to the first heating zone 4 through the first guide channel, and to the second heating zone 5 through the second guide channel. The cold air component can evenly transport cold air to the first heating zone 4 and the second heating zone 5 through the first guide channel and the second guide channel, thereby meeting the local cooling requirements of the preform.

[0037] Optionally, see Figure 2 The reflective box 3 also includes a reflective plate 31. The reflective plate 31 is disposed on one side of the box body facing the first heating zone 4 and the second heating zone 5. The reflective plate 31 is made of mirror stainless steel material. The reflective plate 31 is provided with second strip holes 32 corresponding to the first strip holes. The second strip holes 32 have the same size as the first strip holes. The reflective plate 31 can reflect the heat generated by the first heating component 1 and the second heating component 2, thereby ensuring the heating temperature of the first heating zone 4 and the second heating zone 5 and improving the heating effect.

[0038] Optionally, see Figure 1 and Figure 4, the first heating component 1 and the second heating component 2 each include a plurality of heating boxes 7 arranged in sequence, a heating element 72 is provided on the side of the heating box 7 facing the reflective box 3, a power supply 73 is provided on the side of the heating box 7 facing away from the reflective box 3, and the power supply 73 is electrically connected to the heating element 72. The first heating component 1 and the second heating component 2 each include a plurality of independent heating boxes 7, so that they can be easily repaired and replaced, and the temperature of each heating box 7 can be independently controlled, and the power supply 73 can provide heat to the heating element 72 for heating. In the present embodiment, the heating element 72 is a plurality of heating lamps arranged at intervals in the vertical direction. It should be noted that when manufacturing the heating box 7, sheet metal forming can be adopted to save processing costs.

[0039] Optionally, see Figure 3 and Figure 5 The hot air circulation mechanism 10 also includes a mounting frame 8, and the exhaust assembly 6 includes a connecting frame 61 and a second exhaust fan 62 arranged on the connecting frame 61. The connecting frame 61 is arranged on the mounting frame 8. The second exhaust fan 62 is arranged in a one-to-one correspondence with the heating box 7, and the air inlet of the second exhaust fan 62 is connected to the heating box 7. The mounting frame 8 serves as the installation basis for hot air circulation. The first heating assembly 1, the second heating assembly 2, the reflection box 3 and the exhaust assembly 6 are all arranged on the mounting frame 8 to ensure the stability of the structure. The exhaust assembly 6 is connected to the mounting frame 8 through the connecting frame 61, and the second exhaust can discharge the excess heat generated by the heating box 7 to the outside through the air outlet thereon to perform hot air circulation.

[0040] Furthermore, each heating box 7 is provided with a heat dissipation port 71, and the excess heat in the heating box 7 can be discharged to the outside through the heat dissipation port 71. In this embodiment, the heat dissipation port 71 is provided at the top of the heating box 7. After the exhaust assembly 6 is started, the excess heat generated by the heating box 7 can be discharged to the outside through the heat dissipation port 71, thereby performing hot air circulation.

[0041] Optionally, a handle 74 is provided on the side of the heating box 7 facing away from the reflective box 3. When installing the first heating component 1 and the second heating component 2, the handle 74 can be convenient for operators to hold, thereby improving installation efficiency.

[0042] Optionally, both ends of the first heating zone 4 and the second heating zone 5 are provided with insulation partitions, and the insulation partitions are provided with through holes for the bottle blanks to pass through. The first heating zone 4 and the second heating zone 5 are respectively blocked by the insulation partitions at both ends thereof, thereby reducing the heat loss of the first heating zone 4 and the second heating zone 5 and ensuring the heating effect of the bottle blanks. The through holes are used to pass the bottle blanks to avoid interference between the bottle blanks and the insulation partitions. In this embodiment, the through holes are set to be U-shaped. Optionally, the insulation partitions are made of insulation materials, such as polyurethane, and are locked on the heating box 7 and the reflection box 3 by bolts.

[0043] See also Figure 5The present embodiment also provides a bottle blowing machine, comprising the above-mentioned hot air circulation mechanism 10, and also comprising a heat preservation mechanism 20 and a conveying mechanism. The heat preservation mechanism 20 is arranged at one end of the hot air circulation mechanism 10, and is used to keep the preforms warm. The conveying mechanism can sequentially convey the preforms to the first heating zone 4, the heat preservation mechanism 20, and the second heating zone 5. The conveying mechanism can adopt a belt or sprocket conveying mechanism in the prior art, which is not described in detail in the present embodiment. The heat preservation mechanism 20 can keep the preforms warm to prevent heat loss in the process of the preforms entering the second heating zone 5 from the first heating zone 4.

[0044] Optionally, the insulation mechanism 20 includes a first curved plate and a second curved plate arranged at intervals, and an insulation channel is formed between the first curved plate and the second curved plate. Both ends of the insulation channel are respectively connected to the first heating zone 4 and the second heating zone 5. A heating tube is arranged on the first curved plate to ensure the temperature in the insulation channel and reduce heat loss of the bottle blank.

[0045] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Hot air circulation mechanism, characterized in that: include: A first heating component (1) and a second heating component (2) are arranged in parallel, wherein the first heating component (1) and the second heating component (2) are capable of generating heat; A reflective box (3) is arranged in parallel between the first heating component (1) and the second heating component (2); a first heating zone (4) is formed between the reflective box (3) and the first heating component (1); a second heating zone (5) is formed between the reflective box (3) and the second heating component (2); the reflective box (3) can reflect the heat generated by the first heating component (1) to the first heating zone (4), and reflect the heat generated by the second heating component (2) to the second heating zone (5); and the reflective box (3) can evenly blow natural wind to the first heating component (1) and the second heating component (2); and the preforms moving along the transmission direction can sequentially pass through the first heating zone (4) and the second heating zone (5) for blowing; An exhaust component (6) is connected to the first heating component (1) and the second heating component (2), and the exhaust component (6) can discharge excess heat in the first heating component (1) and the second heating component (2) to the outside.

2. The hot air circulation mechanism according to claim 1, characterized in that: The reflection box (3) comprises a box body and a first exhaust fan arranged in the box body, and a side of the box body facing the first heating zone (4) and the second heating zone (5) is provided with a plurality of first strip holes at equal intervals along its extension direction, and the first strip holes extend in the vertical direction, and a plurality of first exhaust fans are arranged at intervals along the extension direction of the box body, and the first exhaust fan is provided with a first air inlet and a first air outlet, the first air inlet is connected to the atmosphere, and the first air outlet is connected to the first heating zone (4) and the second heating zone (5) through the first strip holes.

3. The hot air circulation mechanism according to claim 2, characterized in that: It also includes a cold air component, the first exhaust fan is provided with a second air inlet and a second air outlet, the top of the box body is relatively provided with a first guide channel and a second guide channel, the first guide channel and the second guide channel both extend along the extension direction of the reflection box (3), the second air inlet is connected to the cold air component, the second air outlet is connected to the first guide channel and the second guide channel, and the cold air blown out by the cold air component can be transported to the first heating zone (4) through the first guide channel, and can be transported to the second heating zone (5) through the second guide channel.

4. The hot air circulation mechanism according to claim 2, characterized in that: The reflective box (3) further comprises a reflective plate (31), and the reflective plate (31) is disposed on one side of the box body facing the first heating zone (4) and the second heating zone (5), the reflective plate (31) is made of a mirror-finished stainless steel material, and the reflective plate (31) is provided with second strip holes (32) arranged in one-to-one correspondence with the first strip holes, and the second strip holes (32) and the first strip holes have the same size.

5. The hot air circulation mechanism according to claim 1, characterized in that: The first heating component (1) and the second heating component (2) both comprise a plurality of heating boxes (7) arranged in sequence, wherein a heating element (72) is arranged on a side of the heating box (7) facing the reflecting box (3), and a power source (73) is arranged on a side of the heating box (7) facing away from the reflecting box (3), and the power source (73) is electrically connected to the heating element (72).

6. The hot air circulation mechanism according to claim 5, characterized in that: The hot air circulation mechanism (10) further comprises a mounting frame (8), the exhaust assembly (6) comprises a connecting frame (61) and a second exhaust fan (62) arranged on the connecting frame (61), the connecting frame (61) is arranged on the mounting frame (8), the second exhaust fan (62) and the heating box (7) are arranged in a one-to-one correspondence, and the air inlet of the second exhaust fan (62) is connected to the heating box (7).

7. The hot air circulation mechanism according to claim 5, characterized in that: Each of the heating boxes (7) is provided with a heat dissipation port (71), and excess heat in the heating box (7) can be discharged to the outside through the heat dissipation port (71).

8. The hot air circulation mechanism according to claim 5, characterized in that: A handle (74) is provided on a side of the heating box (7) facing away from the reflecting box (3).

9. The hot air circulation mechanism according to any one of claims 1 to 8, characterized in that: Both ends of the first heating zone (4) and the second heating zone (5) are provided with heat-insulating baffles, and the heat-insulating baffles are provided with through holes for the preforms to pass through.

10. Bottle blowing machine, characterized in that, It comprises a hot air circulation mechanism (10) as claimed in any one of claims 1 to 9, and also comprises a heat preservation mechanism (20) and a conveying mechanism, wherein the heat preservation mechanism (20) is arranged at one end of the hot air circulation mechanism (10) for keeping the bottle blanks warm, and the conveying mechanism can convey the bottle blanks to the first heating zone (4), the heat preservation mechanism (20) and the second heating zone (5) in sequence.

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