Uniformly heated heating mechanism of rotary bottle blowing machine

Abstract

The utility model discloses a uniformly heated heating mechanism of a rotary bottle blowing machine, which relates to the technical field of heating mechanisms of bottle blowing machines and comprises a heating cabinet, a partition plate is arranged in the heating cabinet, a heating device is arranged above the partition plate, and a cooling device is arranged at the top end of the partition plate. The heating device comprises a motor, a transmission shaft of the motor is connected with a rotating shaft, a rotating disc is arranged at the top end of the rotating shaft, and an electric heating pipe is arranged on the upper surface in the heating cabinet. The cooling device comprises a cooling cavity and a cooling water tank, and a cooling water pipe is arranged in the cooling cavity; the bottle preform heating device has the beneficial effects that each bottle preform can be uniformly heated through the electric heating pipe, the motor and the rotating shaft which are arranged in the heating device; and the cooling water pipe and the cooling water tank arranged in the cooling device can reduce the temperature in the cooling cavity according to the heat exchange principle, so that the cooling effect on the bottle opening is achieved.

Description

Technical Field

[0001] The utility model relates to a heating mechanism of a bottle blowing machine, in particular to a heating mechanism of a rotary bottle blowing machine with uniform heating, belonging to the technical field of heating mechanisms of bottle blowing machines. Background Art

[0002] The manufacturing process of plastic bottles is to first make the plastic raw materials into bottle blanks, and then blow them. Before blowing, the bottle blanks need to be heated to a softened state and placed in a split mold. After the mold is closed, compressed air is immediately introduced into the blanks to make the plastic blanks inflate and cling to the inner wall of the mold. After cooling and demolding, various hollow plastic bottle products are obtained. Therefore, the heating mechanism is one of the very important equipment in the production process of plastic bottles. When heating, the bottle body must be heated to a preset temperature to make it fully soft, and the temperature at the bottom of the bottle mouth must be kept low to maintain a certain hardness to prevent the bottle mouth from deforming and becoming unusable.

[0003] After searching, a fully automatic rotary bottle blowing machine disclosed in application number CN202321847253.3 includes a bottom box, the top of the bottom box is fixedly connected to a protective box, the center of the top of the inner cavity of the bottom box is rotatably connected to a rotating shaft through a bearing, the top of the rotating shaft is connected to a turntable, the top of the turntable is evenly connected to an air blowing pipe in an annular shape, and a blowing hole is opened on the top of the air blowing pipe, a high-pressure air pump is fixedly connected to the right side of the bottom of the inner cavity of the bottom box, an air outlet pipe is connected to the left side of the high-pressure air pump, and a rotary joint is provided at the bottom of the rotating shaft. The utility model can carry out bottle blowing operations on multiple bottles by arranging the coordinated operation of the high-pressure air pump, the air outlet pipe, the rotary joint, the rotating shaft, the turntable, the air blowing pipe and the air blowing hole, and can also drive the blown bottles to rotate, so as to facilitate the taking of the bottles. By arranging the above structure, it has the advantages of being able to carry out bottle blowing operations on multiple bottles at one time and high production efficiency.

[0004] However, the above method still has the following defects in actual use: no cooling mechanism is provided at the bottle mouth, and when the preform is heated at high temperature, the bottle mouth may be deformed due to the excessively high temperature at the bottle mouth. Utility Model Content

[0005] The utility model aims to provide a heating mechanism of a rotary bottle blowing machine with uniform heating, so as to solve the problem that no cooling device is provided for the bottle mouth in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a heating mechanism of a rotary bottle blowing machine with uniform heating, comprising a heating cabinet, a partition is provided in the middle of the heating cabinet, a heating device is provided on the inner surface of the heating cabinet above the partition to heat the bottle preform, and a cooling device is provided on the top of the partition to cool the bottle mouth to prevent the bottle mouth from being deformed due to high temperature;

[0007] The heating device includes a motor, which is located at the bottom end of the heating cabinet and below the partition, a transmission shaft of the motor is connected to a rotating shaft, the rotating shaft passes through the partition, a turntable is provided at the top of the rotating shaft, a base is provided at the top of the turntable, a bottle embryo is clamped at the top of the base, and an electric heating tube is provided on the upper surface of the heating cabinet; the cooling device includes a cooling chamber and a cooling water tank, the cooling chamber is located at the top of the partition and outside the turntable, the cooling water tank is located at the back of the heating cabinet, a cooling water pipe is provided inside the cooling chamber, a first support plate is provided on one side of the cooling water tank, a water pump is provided on the top of the first support plate, a water inlet end of the water pump is connected to a water pipe extending into the interior of the cooling water tank, a water outlet end of the water pump is connected to a water inlet pipe, one end of the water inlet pipe is connected to the cooling water pipe, and the other end of the cooling water pipe is connected to a water outlet pipe, and the water outlet pipe extends into the interior of the cooling water tank.

[0008] As a preferred technical solution of the utility model, a cabinet door is provided on the front of the heating cabinet, and the heating cabinet and the cabinet door are connected by a hinge.

[0009] As a preferred technical solution of the utility model, a handle is provided on one side of the cabinet door surface, and a visual window is provided on the front surface of the cabinet door.

[0010] As a preferred technical solution of the utility model, the bottom end of the heating cabinet is provided with supporting legs.

[0011] As a preferred technical solution of the utility model, second support plates are provided on both sides of the heating cabinet, a hair dryer is provided on the top of the second support plate, the air outlet end of the hair dryer is connected to an air outlet pipe, the air outlet pipe passes through the heating cabinet and extends into the interior of the cooling cavity.

[0012] As a preferred technical solution of the utility model, a cooling sealing plate is provided inside the cooling cavity, and air outlet holes are opened on the surface of the cooling sealing plate.

[0013] As a preferred technical solution of the utility model, a baffle is provided at the top end of the cooling sealing plate.

[0014] Compared with the related art, the heating mechanism of the rotary bottle blowing machine provided by the utility model has the following beneficial effects:

[0015] The bottle blank can be heated by the electric heating tube arranged in the heating device, and the motor and rotating shaft arranged can make each bottle blank be heated evenly; the cooling water pipe and cooling water tank arranged in the cooling device can reduce the temperature in the cooling cavity by the principle of heat exchange, thereby playing a role in cooling the bottle mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the structural schematic diagrams of the utility model;

[0017] Figure 2 It is one of the partial structural schematic diagrams of the utility model;

[0018] Figure 3 This is the second schematic diagram of the partial structure of the utility model;

[0019] Figure 4 This is the second structural diagram of the utility model;

[0020] Figure 5 This is the third schematic diagram of the partial structure of the utility model;

[0021] Figure 6 This is the fourth schematic diagram of the partial structure of the utility model.

[0022] In the figure: 1. heating cabinet; 2. cabinet door; 3. hinge; 4. handle; 5. partition; 601. motor; 602. rotating shaft; 603. turntable; 604. base; 605. bottle embryo; 606. electric heating tube; 701. cooling chamber; 702. cooling water tank; 703. first support plate; 704. water pump; 705. water inlet pipe; 706. cooling water pipe; 707. water outlet pipe; 708. second support plate; 709. hair dryer; 7010. air outlet pipe; 7011. cooling sealing plate; 7012. air outlet hole; 7013. baffle; 8. visual window; 9. supporting leg. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0024] See also Figure 1-6 The utility model provides a heating mechanism of a rotary bottle blowing machine with uniform heating, including a heating cabinet 1, a partition 5 is provided in the middle position inside the heating cabinet 1, a heating device is provided on the inner surface of the heating cabinet 1 above the partition 5 to heat the bottle embryo, and a cooling device is provided on the top of the partition 5 to cool the bottle mouth position to prevent the bottle mouth from being deformed due to high temperature.

[0025] The heating device includes a motor 601, which is located at the bottom end of the interior of the heating cabinet 1 and below the partition 5. The transmission shaft of the motor 601 is connected to a rotating shaft 602, which penetrates the partition 5. A turntable 603 is provided at the top of the rotating shaft 602 to make the preform 605 heated more evenly. A base 604 is provided at the top of the turntable 603. The base 604 is provided with a plurality of bases, which respectively surround the upper surface of the turntable 603. The preform 605 is clamped at the top of the base 604. An electric heating tube 606 is provided on the upper surface of the interior of the heating cabinet 1. The electric heating tube 606 is provided with a plurality of bases to heat the preform 605.

[0026] The front of the heating cabinet 1 is provided with a cabinet door 2, and the heating cabinet 1 and the cabinet door 2 are connected by a hinge 3;

[0027] A handle 4 is provided on one side of the cabinet door 2 surface to facilitate opening the cabinet door 2, and a viewing window 8 is provided on the front surface of the cabinet door 2 to facilitate observing the situation inside the heating cabinet 1;

[0028] The bottom end of the heating cabinet 1 is provided with supporting legs 9 , and four supporting legs 9 are provided, respectively located at four corners of the bottom end of the heating cabinet 1 , for supporting the heating cabinet 1 . Example

[0029] The cooling device includes a cooling chamber 701 and a cooling water tank 702. The cooling chamber 701 is located at the top of the partition 5 and at the outside of the turntable 603. The cooling water tank 702 is located at the back of the heating cabinet 1. A cooling water pipe 706 is provided inside the cooling chamber 701. A first support plate 703 is provided on one side of the cooling water tank 702. A water pump 704 is provided on the top of the first support plate 703. The water inlet end of the water pump 704 is connected to a water pipe extending into the cooling water tank 702. The water outlet end of the water pump 704 is connected to a water inlet pipe 705. One end of the water inlet pipe 705 is connected to the cooling water pipe 706. The other end of the cooling water pipe 706 is connected to a water outlet pipe 707. The water outlet pipe 707 extends into the cooling water tank 702.

[0030] A second support plate 708 is provided on both sides of the heating cabinet 1, a hair dryer 709 is provided on the top of the second support plate 708, an air outlet end of the hair dryer 709 is connected to an air outlet pipe 7010, and the air outlet pipe 7010 runs through the heating cabinet 1 and extends into the interior of the cooling cavity 701;

[0031] A cooling sealing plate 7011 is provided inside the cooling cavity 701, and a plurality of air outlet holes 7012 are provided on the surface of the cooling sealing plate 7011;

[0032] A baffle plate 7013 is provided at the top of the cooling sealing plate 7011. There are four baffle plates 7013, which are respectively located around the top of the cooling sealing plate 7011 to reduce the flow of cold air into the heating cabinet 1.

[0033] When in use, firstly, the preform 605 is clamped on the base 604, and the switch of the electric heating tube 606 is turned on. The heat generated by the electric heating tube 606 heats the preform 605, and the motor 601 is turned on. The transmission shaft of the motor 601 drives the rotation of the rotating shaft 602. The rotation of the rotating shaft 602 drives the rotation of the rotating disk 603. The rotation of the rotating disk 603 drives the rotation of the preform 605, so that it is heated more evenly.

[0034] The hair dryer 709 is started, and the air blown by the hair dryer 709 enters the cooling chamber 701 through the air outlet pipe 7010. The air enters the cooling chamber 701 and exchanges heat with the cooling water pipe 706, and the air temperature is further reduced. The air is then blown to the collision position through the air outlet hole 7012 and the baffle 7013. The water after heat absorption flows into the cooling water tank 702 through the water outlet pipe 707 to mix with the cooling water inside it for cooling. The new cooling water flows into the cooling water pipe 706 through the water pump 704 and the water inlet pipe 705, and circulates in sequence. After the above cooling process, the bottle mouth part of the bottle blank 605 can ensure a certain hardness to avoid deformation of the bottle mouth caused by heating by the electric heating tube 606.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heating mechanism for a rotary bottle blowing machine with uniform heating, comprising a heating cabinet (1), characterized in that: A partition (5) is provided in the middle of the heating cabinet (1); a heating device is provided on the inner surface of the heating cabinet (1) located above the partition (5) to heat the bottle preform; and a cooling device is provided on the top of the partition (5) to cool the bottle mouth. The heating device comprises a motor (601), the motor (601) being located at the bottom end of the interior of the heating cabinet (1) and below the partition (5), the transmission shaft of the motor (601) being connected to a rotating shaft (602), the rotating shaft (602) penetrating the partition (5), a rotating disk (603) being provided at the top end of the rotating shaft (602), a base (604) being provided at the top end of the rotating disk (603), a plurality of bases (604) being provided, each of which surrounds the upper surface of the rotating disk (603), a bottle preform (605) being engaged at the top end of the base (604), and an electric heating tube (606) being provided at the upper surface of the interior of the heating cabinet (1); a plurality of electric heating tubes (606) being provided; The cooling device comprises a cooling chamber (701) and a cooling water tank (702); the cooling chamber (701) is located at the top of the partition (5) and at the outside of the rotating disk (603); the cooling water tank (702) is located at the back of the heating cabinet (1); a cooling water pipe (706) is provided inside the cooling chamber (701); a first support plate (703) is provided on one side of the cooling water tank (702); a water pump (704) is provided at the top of the first support plate (703); a water inlet end of the water pump (704) is connected to a water pipe and one end thereof extends into the interior of the cooling water tank (702); a water outlet end of the water pump (704) is connected to a water inlet pipe (705); one end of the water inlet pipe (705) is connected to the cooling water pipe (706); the other end of the cooling water pipe (706) is connected to a water outlet pipe (707); and the water outlet pipe (707) extends into the interior of the cooling water tank (702).

2. The heating mechanism of the rotary bottle blowing machine with uniform heating according to claim 1, characterized in that: The front of the heating cabinet (1) is provided with a cabinet door (2), and the heating cabinet (1) and the cabinet door (2) are connected via a hinge (3).

3. The heating mechanism of the rotary bottle blowing machine with uniform heating according to claim 2, characterized in that: A handle (4) is provided on one side of the surface of the cabinet door (2), and a viewing window (8) is provided on the front surface of the cabinet door (2).

4. The heating mechanism of the rotary bottle blowing machine with uniform heating according to claim 1, characterized in that: The bottom end of the heating cabinet (1) is provided with supporting legs (9), and four supporting legs (9) are provided and are respectively located at four corners of the bottom end of the heating cabinet (1).

5. The heating mechanism of the rotary bottle blowing machine with uniform heating according to claim 1, characterized in that: Second support plates (708) are provided on both sides of the heating cabinet (1); a hair dryer (709) is provided on the top of the second support plate (708); an air outlet end of the hair dryer (709) is connected to an air outlet pipe (7010); the air outlet pipe (7010) passes through the heating cabinet (1) and extends into the interior of the cooling cavity (701).

6. The heating mechanism of the rotary bottle blowing machine with uniform heating according to claim 1, characterized in that: A cooling sealing plate (7011) is provided inside the cooling cavity (701), and an air outlet hole (7012) is provided on the surface of the cooling sealing plate (7011), and a plurality of air outlet holes (7012) are provided.

7. The heating mechanism of the rotary bottle blowing machine with uniform heating according to claim 6, characterized in that: A baffle plate (7013) is arranged at the top end of the cooling sealing plate (7011), and four baffle plates (7013) are arranged and are respectively located on the four sides of the cooling sealing plate (7011).

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