Bottle blank heating device for bottle blowing machine

Abstract

The utility model provides a bottle blank heating device for a bottle blowing machine, which comprises a working table, a conveying mechanism arranged at the upper end of the working table, a reflecting mechanism and a heating mechanism arranged on the inner side and the outer side of the conveying mechanism respectively, and the reflecting mechanism comprises a reflecting support arranged at the upper end of the working table and a reflecting plate arranged on the outer side of the reflecting support. The heating mechanism comprises a heating support arranged at the upper end of the workbench and a heating base arranged at the upper end of the heating support, a connecting air channel is formed in the heating base in a penetrating mode from inside to outside, and a plurality of heating pipes are arranged on the inner side of the heating base in parallel. A fan is arranged on the outer side of the heating base. A heating cavity is formed between the heating mechanism and the reflecting mechanism, and when the heating device is used, the fan drives air to flow from the outer side of the heating base to the inner side of the heating base through the connecting air channel, so that hot air flows in the heating cavity, and bottle blanks are heated more sufficiently and uniformly.

Description

Technical Field

[0001] This utility model relates to blow molding machine components, and in particular, to a preform heating device for blow molding machines. Background Technology

[0002] Currently, Chinese patent CN218196874U discloses a heating device for plastic bottle preforms, including a workbench and a heating box. The workbench contains a conveying mechanism for transporting the bottle preforms. The heating box is positioned on the workbench and partially covers the conveying mechanism. The heating box contains multiple horizontally arranged heating tubes spaced vertically. A support frame is provided on the workbench, located inside the heating box. Multiple rotating rods are rotatably mounted on the support frame. The heating tubes are located at the ends of the rotating rods away from the support frame. An adjusting frame is provided on the workbench, located between the support frame and the heating tubes. The adjusting frame has multiple fixing slots. Mounting slots are provided on the rotating rods. Fixing members are mounted on the rotating rods, passing through the mounting slots and fixed within the fixing slots. However, in the use of this heating device, direct heating of the bottle preforms via the heating tubes results in a relatively concentrated heating point and uneven heating. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to provide a preform heating device for a blow molding machine, which has the advantage of more uniform heating.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a preform heating device for a blow molding machine, including a worktable, a transport mechanism for transporting preforms is provided at the upper end of the worktable, a reflective mechanism and a heating mechanism are respectively provided on the inner and outer sides of the transport mechanism, the reflective mechanism includes a reflective bracket provided at the upper end of the worktable and a reflective plate provided on the outer side of the reflective bracket, an upper baffle is inclinedly provided on the inner side of the upper end of the reflective plate, and a lower baffle is vertically provided on the inner side of the lower end of the reflective plate, the heating mechanism includes a heating bracket provided at the upper end of the worktable and a heating seat provided at the upper end of the heating bracket, a connecting air passage is provided through the heating seat from the inside to the outside, a plurality of heating tubes are arranged parallel to each other on the inner side of the heating seat, and the plurality of heating tubes are distributed at equal intervals from top to bottom, a fan is provided on the outer side of the heating seat, the fan is used to drive air from the outer side of the heating seat to the inner side of the heating seat through the connecting air passage.

[0005] Through the above technical solution, a heating chamber is formed between the heating mechanism and the reflecting mechanism. In use, the transport mechanism controls the bottle preform to be processed to pass through the heating chamber. At the same time, the heating tube directly heats the bottle preform, and the reflector reflects the heat radiation, heating the bottle preform on the side away from the heating tube. Furthermore, the fan drives air from the outside of the heating seat through the connecting air passage to the inside of the heating seat, so that hot air flows in the heating chamber, heating the bottle preform more fully and evenly.

[0006] Preferably, the heating base includes a heating shell disposed on the upper end of the heating bracket and a heating baffle disposed on the inner side of the heating shell. An air inlet is provided on the outer side of the heating shell, and a heating fan is installed on the outer side of the heating shell opposite to the air inlet. An air outlet is provided on the inner side of the heating shell, and the air outlet is connected to the inner cavity of the heating shell. The heating baffle blocks the air outlet, and a plurality of ventilation holes are provided through the heating baffle from the inside to the outside. The connecting air passage is composed of the air inlet, the inner cavity of the heating shell, the air outlet, and the ventilation holes.

[0007] Through the above technical solution, the heating baffle, in conjunction with several vents, forces the hot air to diffuse more evenly, thereby heating the preform more thoroughly and uniformly. The heating base consists of a heating shell and a heating baffle, and the connecting air passage consists of an air inlet, the inner cavity of the heating shell, an air outlet, and vents, making the processing of the heating base more convenient.

[0008] Preferably, two sliding tracks are arranged in parallel on the heating baffle, and the two sliding tracks are respectively located at the upper outer end and the lower outer end of the heating baffle. A movable plate is arranged between the two sliding tracks. A plurality of cleaning bristles are arranged on the inner side of the movable plate, and the plurality of cleaning bristles abut against the outer side of the heating baffle. A driving mechanism is provided on the heating housing, and the output end of the driving mechanism is connected to the movable plate to drive the movable plate to slide back and forth along the sliding tracks.

[0009] With the above technical solution, when there is a lot of dust on the outside of the heating baffle, the operator can drive the movable plate to slide back and forth along the extension direction of the sliding track through the drive mechanism, and then remove the dust on the outside of the heating baffle by cleaning the bristles, so as to restore the air passage of the heating baffle.

[0010] Preferably, the drive mechanism includes a mounting bracket, a servo motor mounted on the mounting bracket, a drive gear mounted on the output end of the servo motor, and a drive rack mounted on the movable plate, wherein the drive gear meshes with the drive rack.

[0011] With the above technical solution, when it is necessary to clean the outside of the heating baffle, the servo motor drives the drive gear to rotate circumferentially, and the drive gear will drive the movable plate to move through the drive rack that meshes with it.

[0012] Preferably, the heating baffle is provided with two sliding tracks, and the two sliding tracks are respectively located at the upper inner end and the lower inner end of the heating baffle. A movable plate is provided between the two sliding tracks. A plurality of cleaning bristles are provided on the outer side of the movable plate, and the plurality of cleaning bristles abut against the inner side of the heating baffle. A connecting bracket is provided between the movable plate and the movable plate.

[0013] Through the above technical solution, while the drive mechanism drives the movable plate to move along the sliding track to clean the inside of the heating baffle, the movable plate will drive the moving plate to move synchronously through the bracket, and then remove the dust attached to the inside of the heating baffle by the cleaning brush.

[0014] Preferably, a dust collection hopper is provided at the lower inner end of the movable plate and the lower outer end of the moving plate.

[0015] The above technical solution allows the dust collection hopper to collect dust that falls during the cleaning process.

[0016] Preferably, the reflector is provided with side baffles on both the front and rear sides, and the upper and lower ends of the side baffles are connected to the upper baffle and the lower baffle, respectively.

[0017] The above technical solution, with the side baffle, upper baffle and lower baffle working together, can concentrate heat and thus improve the heating effect of the heating device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0019] Figure 2 for Figure 1 Enlarged view of part A;

[0020] Figure 3 This is a cross-sectional schematic diagram of an embodiment.

[0021] Reference numerals: 1. Workbench; 2. Transport mechanism; 3. Reflection mechanism; 31. Reflection bracket; 32. Reflector plate; 33. Upper baffle; 34. Lower baffle; 35. Side baffle; 4. Heating mechanism; 41. Heating bracket; 42. Heating seat; 421. Heating shell; 422. Heating baffle; 43. Heating tube; 5. Fan; 6. Air inlet; 7. Air outlet; 8. Vent hole; 9. Sliding rail; 10. Movable plate; 11. Cleaning brush bristles; 12. Drive mechanism; 121. Mounting bracket; 122. Servo motor; 123. Drive gear; 124. Drive rack; 13. Sliding rail; 14. Moving plate; 15. Cleaning brush bristles; 16. Connecting bracket; 17. Dust collection hopper. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0023] A preform heating device for a blow molding machine, such as Figures 1 to 3 As shown, the device includes a workbench 1, with a transport mechanism 2 for transporting bottle preforms mounted on the upper end of the workbench 1. A reflective mechanism 3 and a heating mechanism 4 are respectively mounted on the inner and outer sides of the transport mechanism 2. In use, the bottle preforms are heated by the reflective mechanism 3 and the heating mechanism 4, causing the preforms to soften.

[0024] The reflection mechanism 3 includes a reflection bracket 31 set on the upper end of the worktable 1 and a reflection plate 32 set on the outside of the reflection bracket 31. An upper baffle 33 is inclinedly set on the inner side of the upper end of the reflection plate 32, and a lower baffle 34 is vertically set on the inner side of the lower end of the reflection plate 32. Side baffles 35 are set on both the front and rear sides of the reflection plate 32. The upper and lower ends of the side baffles 35 are connected to the upper baffle 33 and the lower baffle 34, respectively.

[0025] The heating mechanism 4 includes a heating bracket 41 disposed on the upper end of the workbench 1 and a heating seat 42 disposed on the upper end of the heating bracket 41. A connecting air passage is provided through the heating seat 42 from the inside to the outside. A plurality of heating tubes 43 are arranged parallel to each other on the inner side of the heating seat 42, and the plurality of heating tubes 43 are distributed at equal intervals from top to bottom. A fan 5 is disposed on the outer side of the heating seat 42. The fan 5 is used to drive air from the outer side of the heating seat 42 to the inner side of the heating seat 42 through the connecting air passage.

[0026] The heating base 42 includes a heating shell 421 disposed on the upper end of the heating bracket 41 and a heating baffle 422 disposed on the inner side of the heating shell 421. An air inlet 6 is provided on the outer side of the heating shell 421. A heating fan 5 is installed on the outer side of the heating shell 421 opposite to the air inlet 6. An air outlet 7 is provided on the inner side of the heating shell 421. The air outlet 7 is connected to the inner cavity of the heating shell 421. The heating baffle 422 blocks the air outlet 7. Several ventilation holes 8 are provided through the heating baffle 422 from the inside to the outside. The connecting air passage consists of the air inlet 6, the inner cavity of the heating shell 421, the air outlet 7, and the ventilation holes 8.

[0027] Two sliding tracks 9 are arranged in parallel on the heating baffle 422, and the two sliding tracks 9 are located at the upper outer end and the lower outer end of the heating baffle 422, respectively. A movable plate 10 is arranged between the two sliding tracks 9. A number of cleaning bristles 11 are arranged on the inner side of the movable plate 10, and the cleaning bristles 11 abut against the outer side of the heating baffle 422. A drive mechanism 12 is arranged on the heating housing 421. The output end of the drive mechanism 12 is connected to the movable plate 10 to drive the movable plate 10 to slide back and forth along the sliding tracks 9.

[0028] The drive mechanism 12 includes a mounting bracket 121, a servo motor 122 mounted on the mounting bracket 121, a drive gear 123 mounted on the output end of the servo motor 122, and a drive rack 124 mounted on the movable plate 10. The drive gear 123 meshes with the drive rack 124.

[0029] The heating baffle 422 is provided with two sliding rails 13, and the two sliding rails 13 are located at the upper inner end and the lower inner end of the heating baffle 422, respectively. A movable plate 14 is provided between the two sliding rails 13. A plurality of cleaning bristles 15 are provided on the outer side of the movable plate 14, and the plurality of cleaning bristles 15 abut against the inner side of the heating baffle 422. A connecting bracket 16 is provided between the movable plate 14 and the movable plate 10.

[0030] Dust collection hoppers 17 are provided on the lower inner side of the movable plate 10 and the lower outer side of the movable plate 14.

[0031] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A preform heating device for a blow molding machine, comprising a worktable (1), wherein the upper end of the worktable (1) is provided with a transport mechanism (2) for transporting preforms, characterized in that: The transport mechanism (2) is provided with a reflection mechanism (3) and a heating mechanism (4) on its inner and outer sides, respectively. The reflection mechanism (3) includes a reflection bracket (31) on the upper end of the workbench (1) and a reflection plate (32) on the outer side of the reflection bracket (31). An upper baffle (33) is inclinedly provided on the inner side of the upper end of the reflection plate (32), and a lower baffle (34) is vertically provided on the inner side of the lower end of the reflection plate (32). The heating mechanism (4) includes a heating mechanism on the upper end of the workbench (1). The heating bracket (41) and the heating seat (42) are arranged on the upper end of the heating bracket (41). A connecting air passage is provided through the heating seat (42) from the inside to the outside. A plurality of heating tubes (43) are arranged parallel to each other on the inner side of the heating seat (42), and the plurality of heating tubes (43) are distributed at equal intervals from top to bottom. A fan (5) is provided on the outer side of the heating seat (42). The fan (5) is used to drive air from the outer side of the heating seat (42) through the connecting air passage to the inner side of the heating seat (42).

2. The preform heating device for a blow molding machine according to claim 1, characterized in that: The heating base (42) includes a heating shell (421) disposed on the upper end of the heating bracket (41) and a heating baffle (422) disposed on the inner side of the heating shell (421). An air inlet (6) is provided on the outer side of the heating shell (421). A fan (5) is installed on the outer side of the heating shell (421) opposite to the air inlet (6). An air outlet (7) is provided on the inner side of the heating shell (421). The air outlet (7) is connected to the inner cavity of the heating shell (421). The heating baffle (422) blocks the air outlet (7). Several ventilation holes (8) are provided through the heating baffle (422) from the inside to the outside. The connecting air passage is composed of the air inlet (6), the inner cavity of the heating shell (421), the air outlet (7), and the ventilation holes (8).

3. The preform heating device for a blow molding machine according to claim 2, characterized in that: Two sliding tracks (9) are arranged in parallel on the heating baffle (422), and the two sliding tracks (9) are located at the upper outer end and the lower outer end of the heating baffle (422) respectively. A movable plate (10) is arranged between the two sliding tracks (9). A plurality of cleaning bristles (11) are arranged on the inner side of the movable plate (10), and the plurality of cleaning bristles (11) abut against the outer side of the heating baffle (422). A driving mechanism (12) is arranged on the heating housing (421). The output end of the driving mechanism (12) is connected to the movable plate (10) to drive the movable plate (10) to slide back and forth along the sliding track (9).

4. The preform heating device for a blow molding machine according to claim 3, characterized in that: The drive mechanism (12) includes a mounting bracket (121), a servo motor (122) mounted on the mounting bracket (121), a drive gear (123) mounted on the output end of the servo motor (122), and a drive rack (124) mounted on the movable plate (10). The drive gear (123) meshes with the drive rack (124).

5. A preform heating device for a blow molding machine according to claim 4, characterized in that: The heating baffle (422) is provided with two sliding tracks (13), and the two sliding tracks (13) are respectively located at the upper inner end and the lower inner end of the heating baffle (422). A movable plate (14) is provided between the two sliding tracks (13). A plurality of cleaning bristles (15) are provided on the outer side of the movable plate (14), and the plurality of cleaning bristles (15) abut against the inner side of the heating baffle (422). A connecting bracket (16) is provided between the movable plate (14) and the movable plate (10).

6. The preform heating device for a blow molding machine according to claim 5, characterized in that: Dust collection hoppers (17) are provided on the lower inner side of the movable plate (10) and the lower outer side of the movable plate (14).

7. The preform heating device for a blow molding machine according to claim 1, characterized in that: The reflector (32) is provided with side baffles (35) on both the front and rear sides, and the upper and lower ends of the side baffles (35) are connected to the upper baffle (33) and the lower baffle (34) respectively.

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