A temperature raising mechanism of a bottle preform blow molding machine

Abstract

The utility model belongs to bottle embryo blow moulding technical field, concretely for a kind of heating mechanism of bottle embryo blow moulding machine, including heating cover and conveyer belt, the conveyer belt is installed in heating cover inner chamber bottom, movable mounting of heating cover inner chamber has moving frame, the moving frame is located at conveyer belt both sides, and the moving frame is symmetrically set, distance adjusting screw rod electric jar is uniformly installed in heating cover both sides surface middle part, the piston rod of distance adjusting screw rod electric jar penetrates heating cover cavity wall, and the piston rod of distance adjusting screw rod electric jar is connected with moving frame surface;The utility model can carry out the quick adjustment to the heating temperature of bottle embryo by adjusting the distance between heating lamp tube and bottle embryo, angle adjustment of heating lamp tube can be carried out simultaneously, the spacing between heating lamp tube and bottle mouth and bottle bottom of bottle embryo can be adjusted, the heating of bottle mouth and bottle bottom under different temperature can be realized, to improve the heating effect of bottle embryo.

Description

Technical Field

[0001] This utility model relates to the field of preform blow molding technology, specifically a heating mechanism for a preform blow molding machine. Background Technology

[0002] A blow molding machine is a device that uses a blow molding process to make plastic granules into hollow containers. Common types of machines include blow molding machines that use PP and PE for one-time molding, and injection stretch blow molding machines that use PET, PC, or PP for two-time molding.

[0003] The invention patent with publication number CN220031142U discloses a blow molding machine for PET preforms. A lifting frame is installed on the top of the heating device, and a reciprocating screw is installed in the lifting frame. The reciprocating screw can adjust the angle of the entire feeding mechanism. When the preform in front is processed, the motor drives the reciprocating screw in the lifting frame to move upward. The reciprocating screw is connected to a push rod through a thread, thereby driving the feeding mechanism above the push rod to move upward. This avoids the pressure of the preform behind on the preform on one side of the guide tube. This solves the problem that in existing preform blow molding machines, after the preform is produced, it is placed inside the feeding mechanism. Since the feeding mechanism for placing the preform is always in an inclined state, the preform placed behind the feeding mechanism is prone to squeezing one end of the preform in the guide tube.

[0004] In existing preform blow molding machines, the distance between the heating lamp and the preform is not easily adjustable during use. At the same time, the required heating temperatures for the bottle mouth and the bottle bottom are also different. Heating the bottle mouth and the bottle bottom at the same temperature can affect the heating effect on the preform. To solve the above problems, this application proposes a heating mechanism for a preform blow molding machine. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a heating mechanism for a preform blow molding machine. By adjusting the distance between the heating lamp and the preform, the heating temperature of the preform can be quickly adjusted. At the same time, by adjusting the angle of the heating lamp, the distance between the heating lamp and the preform's mouth and bottom can be adjusted, enabling heating of the mouth and bottom at different temperatures to improve the heating effect on the preform and solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To solve the above technical problems, this utility model provides a heating mechanism for a preform blow molding machine, including a heating hood and a conveyor belt. The conveyor belt is installed at the bottom of the inner cavity of the heating hood. A movable frame is movably installed in the inner cavity of the heating hood. The movable frame is located on both sides of the conveyor belt and is arranged symmetrically. A distance adjusting screw electric cylinder is installed in the middle of the surface of both sides of the heating hood. The piston rod of the distance adjusting screw electric cylinder penetrates the cavity wall of the heating hood and is connected to the surface of the movable frame.

[0009] The mobile frame is equipped with connecting swing arms at equal intervals on its surface. An angle adjustment plate is rotatably connected to the surface of each connecting swing arm, and a heating lamp is installed on the surface of the angle adjustment plate.

[0010] Preferably, the conveyor belt surface is provided with insertion seats at equal intervals, and the bottle preform is movably inserted into the inner cavity of the insertion seat.

[0011] Preferably, guide holes are provided through both sides of the heating cover, and the guide holes are symmetrically arranged on both sides of the heating cover.

[0012] Preferably, a guide rod is inserted into the inner cavity of the guide hole, and the end of the guide rod is connected to the surface of the movable frame.

[0013] Preferably, a heat insulation plate is attached to the surface of the angle adjustment plate, which can block the heat emitted by the heating lamp.

[0014] Preferably, the angle adjustment plate has equidistant mounting brackets on its surface, and the heating lamp tube is engaged with the mounting brackets.

[0015] Preferably, angle adjusting screw electric cylinders are equidistantly installed on the surface of the movable frame, and both ends of the angle adjusting screw electric cylinders are rotatably connected to rotating connecting seats, which are respectively fixed to the surface of the movable frame and the angle adjusting plate.

[0016] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0017] 1. In this utility model, the moving frame is driven by a distance-adjusting screw electric cylinder. During the movement of the moving frame, the guide rod can play a guiding role. By adjusting the distance between the heating lamp tube and the preform, the heating temperature of the preform can be quickly adjusted.

[0018] 2. In this utility model, the angle adjustment plate is driven by the angle adjustment screw electric cylinder to swing under the action of the connecting swing arm. The angle adjustment plate forms a certain angle with the bottle preform, so that the heating lamp can heat the bottle mouth and bottle bottom of the bottle preform at different temperatures, thereby improving the heating effect of the bottle preform. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the heating mechanism of a preform blow molding machine according to the present invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of the heating mechanism of a preform blow molding machine according to the present invention.

[0021] Figure 3 This is a schematic diagram of the moving frame structure of the heating mechanism of a preform blow molding machine according to the present invention;

[0022] Figure 4 This is a schematic diagram of the angle adjustment plate structure of the heating mechanism of a preform blow molding machine according to the present invention.

[0023] Figure label:

[0024] 1. Heating cover; 2. Conveyor belt; 3. Insert connector; 4. Bottle preform; 5. Distance adjustment screw electric cylinder; 6. Moving frame; 7. Angle adjustment plate; 8. Heat insulation plate; 9. Heating lamp tube; 10. Card holder; 11. Guide rod; 12. Connecting swing arm; 13. Angle adjustment screw electric cylinder; 14. Rotary connecting seat. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] like Figure 1-4 As shown, the present invention proposes a heating mechanism for a preform blow molding machine, comprising a heating hood 1 and a conveyor belt 2. The conveyor belt 2 is installed at the bottom of the inner cavity of the heating hood 1. A movable frame 6 is movably installed in the inner cavity of the heating hood 1. The movable frame 6 is located on both sides of the conveyor belt 2 and is arranged symmetrically. A distance adjusting screw cylinder 5 is installed in the middle of both sides of the heating hood 1. The piston rod of the distance adjusting screw cylinder 5 penetrates the cavity wall of the heating hood 1 and is connected to the surface of the movable frame 6.

[0027] The movable frame 6 has connecting swing arms 12 equidistantly mounted on its surface. An angle adjustment plate 7 is rotatably connected to the surface of the connecting swing arms 12. A heating lamp tube 9 is mounted on the surface of the angle adjustment plate 7.

[0028] It should be noted that during the forward movement of the preform 4, heating lamps 9 heat both sides of the preform 4. The heating temperature of the preform 4 varies depending on the raw materials. The moving frame 6 is moved by the distance adjustment screw cylinder 5. During the movement of the moving frame 6, the guide rod 11 can guide the movement. By adjusting the distance between the heating lamps 9 and the preform 4, the heating temperature of the preform 4 can be quickly adjusted. At the same time, the required heating temperature for the bottle mouth and the bottle bottom of the preform 4 also differs during the heating process. The angle adjustment screw cylinder 13 is used to push the angle adjustment plate 7 to swing under the action of the connecting swing arm 12. The angle adjustment plate 7 forms a certain angle with the preform 4 so that the heating lamps 9 can heat the bottle mouth and the bottle bottom of the preform 4 at different temperatures, thereby improving the heating effect of the preform 4.

[0029] In this embodiment, as Figure 2 As shown, the conveyor belt 2 is provided with insertion seats 3 at equal intervals on its surface, and bottle preforms 4 are movably inserted into the inner cavity of the insertion seats 3.

[0030] It should be noted that the preform 4 is inserted and fixed on the conveyor belt 2 by the connector 3, and the preform 4 is transported by the conveyor belt 2.

[0031] In this embodiment, as Figure 1 As shown, guide holes are provided through both sides of the heating cover 1. The guide holes are symmetrically arranged on both sides of the heating cover 1. A guide rod 11 is inserted into the inner cavity of the guide hole. The end of the guide rod 11 is connected to the surface of the movable frame 6.

[0032] It should be noted that the guide rod 11, in conjunction with the guide hole, can guide the movement of the movable frame 6.

[0033] In this embodiment, as Figure 4 As shown, a heat insulation plate 8 is attached to the surface of the angle adjustment plate 7, which can block the heat emitted by the heating lamp tube 9.

[0034] It should be noted that the heat insulation plate 8 can block the heat generated by the heating lamp tube 9.

[0035] In this embodiment, as Figure 4 As shown, the angle adjustment plate 7 has equidistant mounting brackets 10 on its surface, and the heating lamp tube 9 is engaged with the mounting brackets 10.

[0036] It should be noted that the card holder 10 can fix the heating lamp tube 9.

[0037] In this embodiment, as Figure 4As shown, angle adjusting screw electric cylinders 13 are equidistantly installed on the surface of the movable frame 6. Both ends of the angle adjusting screw electric cylinders 13 are rotatably connected to rotating connecting seats 14, which are respectively fixed on the surfaces of the movable frame 6 and the angle adjusting plate 7.

[0038] It should be noted that the two ends of the angle adjusting screw electric cylinder 13 are connected to the moving frame 6 and the angle adjusting plate 7 through the rotating connecting seat 14, which allows the angle adjusting screw electric cylinder 13 to swing.

[0039] The working principle and usage process of this utility model are as follows: The preform 4 is inserted and fixed on the conveyor belt 2 by the connector 3. The preform 4 is conveyed by the conveyor belt 2. During the forward movement of the preform 4, the heating lamp tube 9 heats both sides of the preform 4. The preform 4 is heated at different temperatures for different raw materials. The moving frame 6 is moved by the distance adjustment screw cylinder 5. During the movement of the moving frame 6, the guide rod 11 can play a guiding role. By adjusting the distance between the heating lamp tube 9 and the preform 4, the heating temperature of the preform 4 can be quickly adjusted. At the same time, there is a certain difference in the heating temperature required for the bottle mouth and the bottle bottom during the heating process. The angle adjustment screw cylinder 13 is controlled to push the angle adjustment plate 7 to swing under the action of the connecting swing arm 12. The angle adjustment plate 7 forms a certain angle with the preform 4 so that the heating lamp tube 9 can heat the bottle mouth and the bottle bottom of the preform 4 at different temperatures, thereby improving the heating effect of the preform 4.

[0040] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. A heating mechanism of a preform blow molding machine, comprising a heating cover (1) and a conveying belt (2), the conveying belt (2) is installed at the bottom of the inner cavity of the heating cover (1), characterized in that, A movable frame (6) is movably installed inside the heating cover (1). The movable frame (6) is located on both sides of the conveyor belt (2) and is arranged symmetrically. A distance adjusting screw electric cylinder (5) is installed in the middle of both sides of the heating cover (1). The piston rod of the distance adjusting screw electric cylinder (5) penetrates the cavity wall of the heating cover (1) and is connected to the surface of the movable frame (6). The movable frame (6) is equidistantly mounted with connecting swing arms (12), and the surface of the connecting swing arms (12) is rotatably connected with an angle adjustment plate (7), and the surface of the angle adjustment plate (7) is mounted with a heating lamp tube (9).

2. The heating mechanism of a preform blow molding machine according to claim 1, characterized in that, The conveyor belt (2) is provided with equidistant insertion seats (3) on its surface, and the preform (4) is movably inserted into the inner cavity of the insertion seat (3).

3. The heating mechanism of a preform blow molding machine according to claim 2, characterized in that, Guide holes are provided on both sides of the heating cover (1), and the guide holes are symmetrically arranged on both sides of the heating cover (1).

4. The heating mechanism of a preform blow molding machine according to claim 3, characterized in that, A guide rod (11) is inserted into the inner cavity of the guide hole, and the end of the guide rod (11) is connected to the surface of the movable frame (6).

5. The heating mechanism of a preform blow molding machine according to claim 4, characterized in that, The angle adjustment plate (7) has a heat insulation plate (8) attached to its surface, which can block the heat emitted by the heating lamp tube (9).

6. The temperature raising mechanism of a preform blow molding machine according to claim 5, wherein The angle adjustment plate (7) has equidistant mounting brackets (10) on its surface, and the heating lamp tube (9) is engaged with the mounting brackets (10).

7. The temperature increasing mechanism of a preform blow molding machine according to claim 6, wherein Angle-adjusting screw cylinders (13) are equidistantly installed on the surface of the movable frame (6). Both ends of the angle-adjusting screw cylinders (13) are rotatably connected to rotating connecting seats (14). The rotating connecting seats (14) are fixed on the surfaces of the movable frame (6) and the angle-adjusting plate (7), respectively.

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