A plastic bottle preform heater

Abstract

The utility model relates to the technical field of plastic bottle processing, and in particular to a plastic preform heater, which comprises a frame, a heating component, a feeding component, a material guiding component, a driving component and a blowing component. The frame is rotatably connected to a turntable, and a support member with a plurality of preform placement points is arranged on the turntable. The heating component is connected to the frame, and the heating component heats the preforms within its heating range in a working state. The feeding component conveys the preforms one by one to the placement points of the supporting member in a working state. The material guiding component is connected to the frame, and the material guiding component guides the heated preforms in a working state. The driving component is connected to the frame and drives the turntable to rotate. The blowing component is connected to the frame, and the blowing component blows the heated preforms from the supporting member to the material guiding component in a working state. The utility model can realize fast and automatic feeding and discharging, and the heating of the preforms does not need to be performed intermittently, thereby improving the efficiency of heating the preforms.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle processing, in particular to a plastic bottle preform heater. Background Art

[0002] In the production process of plastic bottles, a preform is first made through a mold, and then the final shape of the bottle is completed through blow molding. Before blow molding, the preform needs to be heated to soften it. The existing heating equipment is not very efficient in heating the preform.

[0003] The technical solution disclosed in the Chinese patent with authorization announcement number CN206812420U is heated by infrared heating. Infrared heating has penetrating power and can heat both inside and outside at the same time, which improves heating efficiency, saves resources, and is beneficial to energy conservation and environmental protection. At the same time, it is simple and easy to assemble, install and maintain, which improves work efficiency. The telescopic plate can be retracted when the conveyor belt is running to allow the bottle blank to pass normally. When heating the bottle blank, the telescopic plate can be extended to reduce heat loss, save energy and shorten the heating time.

[0004] However, this device still has some shortcomings: the preform needs to be separated by a telescopic plate during heating, so the heating process is intermittent and continuous, and the efficiency is low. Utility Model Content

[0005] The utility model aims to provide a plastic bottle preform heater in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is a plastic preform heater, which comprises a frame, the frame is rotatably connected to a turntable, and a support member with a plurality of bottle preform placement points is arranged on the turntable.

[0007] The heating component is connected to the frame and heats the preforms within its heating range in a working state.

[0008] A feeding component is connected to the frame, and in a working state, the feeding component transports the preforms one by one to the placement point of the support.

[0009] The material guiding component is connected with the frame, and the material guiding component guides the heated preforms out in the working state.

[0010] The driving component is connected to the frame and drives the turntable to rotate, so as to rotate the bottle blanks on various placement points one by one into the heating range of the heating component in sequence and guide the heated bottle blanks to the input end of the material guide component.

[0011] And a blowing assembly, which is connected to the frame and blows the heated preforms from the supporting member to the material guiding assembly in a working state.

[0012] Preferably, the support member comprises an annular support plate, which is sleeved on the turntable and connected to its outer wall, and a plurality of slots are arranged on the annular support plate in an annular array around its axis.

[0013] Preferably, a circular groove is provided on the frame, the turntable is located in the circular groove, and the annular support plate is slidably connected to the inner wall of the circular groove.

[0014] Preferably, a feed trough and a discharge trough connected to the circular groove from the side are provided on the frame, the feed assembly is located in the feed trough, and the guide assembly is located in the discharge trough. The feed assembly includes two mutually parallel guide frames A, the guide frames A on both sides are respectively connected to the corresponding sides of the feed trough and are inclined downward toward the turntable, and a channel A is provided between the guide frames A on both sides for only the part below the bottle preform support ring to pass through. The guide assembly includes two mutually parallel guide frames B, the guide frames B on both sides are respectively connected to the corresponding sides of the discharge trough and are inclined downward along the turntable toward the output end of the discharge trough, and a channel B is provided between the guide frames B on both sides for only the part below the bottle preform support ring to pass through.

[0015] Preferably, the heating assembly includes a heater A and a heater B, wherein heater A is connected to the inner wall of the circular groove, heater B is connected to the upper wall of the circular groove and is located above the support, and heater A and heater B are both located on the path of the turntable rotating from the feed end toward the discharge end.

[0016] Preferably, the blowing assembly includes a ring-shaped member and a fan, the ring-shaped member is connected to the frame, an arc groove is arranged on the ring-shaped member, and an air inlet hole and an air outlet hole connected to the arc groove are arranged on the ring-shaped member, the air inlet end of the air inlet hole is close to the heating assembly, and a fan is arranged in the air outlet hole to extract air from the arc groove and blow hot air along the discharge end of the support member to the output end of the frame.

[0017] Preferably, an annular groove is provided on the turntable, the annular member is located in the annular groove and is slidably connected thereto, and a fixing plate is provided on the annular member, and the fixing plate is connected to the frame.

[0018] Compared with the prior art, the utility model has the following beneficial technical effects:

[0019] By setting the guide frame A and the guide frame B, both sets of guide frames are tilted, so as to automatically guide the bottle blanks, and by setting the structure of the turntable and the annular support plate, a plurality of slots are arranged on the annular support plate, so as to automatically receive the bottle blanks output from the guide frame A; the utility model heats the bottle blanks by a far-infrared heater, so as to improve the heating efficiency and shorten the time required for heating the bottle blanks. At the same time, the utility model sets an annular member and sets a fan in the annular member, so as to blow hot air to the bottle blanks at the discharging station of the annular support member through the fan, and then quickly blow the heated bottle blanks onto the guide frame B, so as to realize fast and accurate unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the rack;

[0022] Figure 3 It is a schematic diagram of the connection structure of various components on the turntable;

[0023] Figure 4 is a schematic diagram of the structure of the turntable;

[0024] Figure 5 It is a schematic diagram of the connection structure of various components on the ring.

[0025] Figure numerals: 1, frame; 101, circular groove; 102, feed trough; 103, discharge trough; 2, heater A; 3, heater B; 4, turntable; 401, annular groove; 5, annular support plate; 501, card slot; 6, motor; 7, guide frame A; 8, guide frame B; 9, ring part; 901, arc groove; 902, air inlet; 903, air outlet; 10, fixing plate; 11, fan. DETAILED DESCRIPTION

[0026] Embodiment 1

[0027] As shown in the figure, a plastic preform heater proposed by the utility model includes a frame 1, a heating component, a feeding component, a material guide component, a driving component and a blowing component. The frame 1 is rotatably connected to a turntable 4, and a support member with multiple bottle blank placement points is arranged on the turntable 4. The support member includes an annular support plate 5, which is sleeved on the turntable 4 and connected to its outer wall, and a plurality of card grooves 501 are arranged in an annular array around its axis on the annular support plate 5. A circular groove 101 is arranged on the frame 1, the turntable 4 is located in the circular groove 101, and the annular support plate 5 is slidably connected to the inner wall of the circular groove 101. The heating assembly is connected to the frame 1, and the heating assembly includes a heater A2 and a heater B3. Both heaters A2 and B3 are far-infrared heaters. Heater A2 is connected to the inner wall of the circular groove 101, and heater B3 is connected to the upper wall of the circular groove 101 and is located above the support. Heater A2 and heater B3 are both located on the path of the turntable 4 rotating from the feed end to the discharge end, and the heating assembly heats the preforms within its heating range in the working state. The feeding assembly is connected to the frame 1, and the feeding assembly conveys the preforms one by one to the placement point of the support in the working state. The material guiding assembly is connected to the frame 1, and the material guiding assembly guides the heated preforms in the working state. The frame 1 is provided with a feeding trough 102 and a discharging trough 103 that are connected to the circular groove 101 from the side. The feeding assembly is located in the feeding trough 102, and the material guiding assembly is located in the discharging trough 103. The feeding assembly includes two mutually parallel guide frames A7, which are respectively connected to the corresponding sides of the feeding trough 102 and tilted downward toward the turntable 4, and a channel A is set between the two guide frames A7 for only the part below the bottle preform support ring to pass through. The material guiding assembly includes two mutually parallel guide frames B8, which are respectively connected to the corresponding sides of the discharging trough 103 and tilted downward along the turntable 4 toward the output end of the discharging trough 103, and a channel B is set between the two guide frames B8 for only the part below the bottle preform support ring to pass through. The driving assembly includes but is not limited to the motor 6, which is connected to the frame 1 and drives the turntable 4 to rotate, so as to rotate the bottle preforms at each placement point one by one into the heating range of the heating assembly in sequence and guide the heated bottle preforms to the input end of the material guiding assembly. The blowing assembly is connected to the frame 1, and includes a ring member 9 and a fan 11. The turntable 4 is provided with a ring groove 401, the ring member 9 is located in the ring groove 401 and is slidably connected thereto, and a fixing plate 10 is provided on the ring member 9, and the fixing plate 10 is connected to the frame 1. The ring member 9 is provided with an arc groove 901, and an air inlet 902 and an air outlet 903 communicating with the arc groove 901 are provided on the ring member 9, the air inlet end of the air inlet 902 is close to the heating assembly, and a fan 11 is provided in the air outlet 903 to extract air from the arc groove 901 and blow hot air along the discharge end of the support member to the output end of the frame 1. The blowing assembly blows the heated preform from the support member to the material guide assembly in the working state.

[0028] In this embodiment, during the sliding of the plastic bottle blank along the guide frame A7, the support ring at the neck of the bottle blank is restricted, so that the bottle blank is automatically straightened and slides into the card slot 501. At this time, the support ring falls on the upper surface of the annular support plate 5, and its lower part is below the annular support plate 5. Subsequently, the bottle blank moves to the heating range of the heater A2 and the heater B3 under the action of the motor 6 driving the turntable 4 to rotate, and the bottle blank is quickly heated by the strong penetration of infrared radiation. The heated bottle blank is rotated into the discharge chute 103. At this time, the fan 11 continues to blow hot air to the output end of the discharge chute 103, so that the bottle blank slides from the annular support plate 5 and falls on the guide frame B8 under the push of wind, and finally the bottle blank slides along the guide frame B8 to the next processing point.

[0029] Embodiment 2

[0030] Compared with the first embodiment, the plastic bottle preform heater proposed by the utility model has an adjustment component set on the frame 1, and the adjustment component includes but is not limited to a two-way module, which synchronously drives the guide frame A7 and the guide frame B8 to move closer or farther, and the annular support plate 5 is detachably connected to the turntable 4.

[0031] In this embodiment, for bottle blanks of different sizes, the outer diameters of the support rings are different. At this time, it is necessary to adjust the distance between the guide frames A7 and B8 on both sides so that the guide frames can just pass through the pipes below the support rings. At the same time, the heating of bottle blanks of different models can be completed by replacing the annular support plates 5 of corresponding specifications.

[0032] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A plastic preform heater, characterized in that: include A frame (1), the frame (1) is rotatably connected to a turntable (4), and a support member having a plurality of bottle blank placement points is arranged on the turntable (4); A heating component, the heating component is connected to the frame (1), and the heating component heats the bottle blank within its heating range in a working state; A feeding assembly, the feeding assembly is connected to the frame (1), and in a working state, the feeding assembly transports the bottle blanks one by one to the placement point of the support member; A material guide assembly, the material guide assembly is connected to the frame (1), and the material guide assembly guides the heated preforms out in a working state; A driving assembly connected to the frame (1) and driving the turntable (4) to rotate, so as to rotate the preforms at various placement points one by one into the heating range of the heating assembly in sequence and guide the heated preforms to the input end of the material guide assembly; And a blowing assembly, which is connected to the frame (1) and blows the heated preforms from the support member to the material guide assembly in a working state.

2. A plastic preform heater according to claim 1, characterized in that: The support member comprises an annular support plate (5), which is sleeved on the turntable (4) and connected to its outer wall, and a plurality of slots (501) are arranged on the annular support plate (5) in an annular array around its axis.

3. A plastic bottle preform heater according to claim 2, characterized in that: A circular groove (101) is arranged on the frame (1), the rotating disk (4) is located in the circular groove (101), and the annular supporting plate (5) is slidably connected to the inner wall of the circular groove (101).

4. A plastic preform heater according to claim 3, characterized in that: A feeding trough (102) and a discharging trough (103) are arranged on the frame (1), which are connected to the circular groove (101) from the side. The feeding assembly is located in the feeding trough (102), and the guiding assembly is located in the discharging trough (103). The feeding assembly comprises two mutually parallel guide frames A (7), the guide frames A (7) on both sides are respectively connected to the corresponding sides of the feeding trough (102) and are inclined downward toward the rotating disk (4), and a channel A is arranged between the guide frames A (7) on both sides, which is only for the part below the support ring of the bottle preform to pass through. The guiding assembly comprises two mutually parallel guide frames B (8), the guide frames B (8) on both sides are respectively connected to the corresponding sides of the discharging trough (103) and are inclined downward along the rotating disk (4) toward the output end of the discharging trough (103), and a channel B is arranged between the guide frames B (8) on both sides, which is only for the part below the support ring of the bottle preform to pass through.

5. A plastic preform heater according to claim 3, characterized in that: The heating assembly comprises a heater A (2) and a heater B (3), wherein the heater A (2) is connected to the inner wall of the circular groove (101), and the heater B (3) is connected to the upper wall of the circular groove (101) and is located above the support member, and the heater A (2) and the heater B (3) are both located on a path of the turntable (4) rotating from the feed end to the discharge end.

6. A plastic preform heater according to claim 1, characterized in that: The blowing assembly comprises an annular member (9) and a fan (11), the annular member (9) being connected to a frame (1), an arc-shaped groove (901) being arranged on the annular member (9), and an air inlet (902) and an air outlet (903) being arranged on the annular member (9) and communicating with the arc-shaped groove (901), the air inlet end of the air inlet (902) being close to the heating assembly, and a fan (11) being arranged in the air outlet (903) for extracting air from the arc-shaped groove (901) and blowing hot air along the discharge end of the support member toward the output end of the frame (1).

7. A plastic preform heater according to claim 6, characterized in that: An annular groove (401) is arranged on the rotating disk (4), the annular member (9) is located in the annular groove (401) and is slidably connected thereto, and a fixing plate (10) is arranged on the annular member (9), and the fixing plate (10) is connected to the frame (1).

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