Heating chain group for bottle blowing machine, bottle blowing machine and energy-saving method

Abstract

The invention relates to the technical field of bottle blowing devices, in particular to a heating chain set for a bottle blowing machine, in addition, the invention further relates to the bottle blowing machine comprising the heating chain set and an energy saving method, the heating chain set comprises a chain used for conveying bottle blanks, and at least one U-shaped chain set is arranged on the chain; the U-shaped chain set comprises an arc-shaped section used for chain steering, a lower blank section arranged in the blank discharging direction of the arc-shaped section and an upper blank section arranged in the blank feeding direction of the arc-shaped section, the lower blank section and the upper blank section are both linear sections and are arranged in parallel at intervals, and a single row of heating lamp tubes are arranged between the lower blank section and the upper blank section. The distances between the heating lamp tubes and the lower blank section and between the heating lamp tubes and the upper blank section are equal, the heating lamp tubes are arranged in parallel, the single row of heating lamp tubes heat bottle blanks on the two sides of the heating lamp tubes at the same time, the heating efficiency is improved, meanwhile, the using amount of the heating lamp tubes is reduced, energy consumption is reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of bottle blowing devices, in particular to a heating chain group for a bottle blowing machine. In addition, the present invention also relates to a bottle blowing machine comprising the heating chain group and an energy-saving method. Background Art

[0002] A bottle blowing machine is a device that uses a blow molding process to make plastic particles into hollow containers. It is widely used in the beverage, pharmaceutical, cosmetic, food and chemical industries. During the operation of the bottle blowing machine, the preform tube needs to be heated. After the preform is heated to a softened state, it is placed in a split mold. After the mold is closed, compressed air is immediately introduced into the preform to inflate the plastic preform and make it adhere tightly to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] like Figure 4 As shown, the existing bottle blowing machine uses a chain to move the bottle preform. After the chain brings the bottle preform into the heating box, the bottle preform is heated by the lamp tube inside the heating box. Since the existing heating method is to set a single row of lamp tubes on one side of the bottle preform, or to set multiple rows of lamp tubes on both sides of the bottle preform, the lamp tubes can only heat the bottle preform on one side. At the same time, the bottle mouth is placed in the heating box with it facing upward. In order to prevent the bottle mouth from being deformed by the heat, an induced draft fan is required to continuously extract heat, which consumes a lot of heat energy in vain and leads to high energy consumption. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a heating chain group for a bottle blowing machine, a bottle blowing machine and an energy-saving method. By using a single row of heating lamps to heat the bottle blanks on both sides at the same time, the heating efficiency is improved while the use of heating lamps is reduced, the energy consumption is reduced, and the energy saving effect is achieved.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A heating chain assembly for a bottle blowing machine includes a chain for conveying bottle preforms, wherein the chain is provided with at least one U-shaped chain assembly, wherein the U-shaped chain assembly includes: an arc segment for chain steering, a lower embryo segment arranged in the direction of the lower embryo of the arc segment, and an upper embryo segment arranged in the direction of the upper embryo of the arc segment, wherein the lower embryo segment and the upper embryo segment are both straight segments and are arranged in parallel and spaced apart, and a single row of heating lamps is provided between the lower embryo segment and the upper embryo segment, wherein the heating lamps are equidistant from the lower embryo segment and the upper embryo segment and are arranged in parallel, so that the single row of heating lamps can simultaneously heat the bottle preforms on the lower embryo segment and the upper embryo segment on both sides thereof.

[0007] Preferably, the lower embryo segment and the upper embryo segment are each provided with an extension segment in the opening direction toward the U-shaped chain group, and the two extension segments are both straight segments and are arranged in parallel and spaced apart. Another heating lamp tube is provided between the two extension segments, and the heating lamp tube is equidistant from the two extension segments and is arranged in parallel.

[0008] Preferably, the plurality of U-shaped chain groups are all oriented in the same direction and are arranged in parallel at intervals, a sprocket is provided between each adjacent two U-shaped chain groups, and the sprockets are respectively arranged tangent to the lower embryo segment and the upper embryo segment of the two U-shaped chain groups on both sides.

[0009] Preferably, the sprocket is a tensioning wheel, and the tensioning direction of the sprocket is the same as the opening direction of the U-shaped chain group.

[0010] Preferably, an upper embryo flipping device is provided on the chain before entering the U-shaped chain group, and the upper embryo flipping device is used to flip the bottle preform so that the bottle preform opening faces downward and enters the U-shaped chain group. A lower embryo flipping device is provided on the chain after leaving the U-shaped chain group, and the lower embryo flipping device is used to flip the bottle preform so that the bottle preform opening faces upward and leaves the U-shaped chain group.

[0011] An energy-saving bottle blowing machine comprises a bottle blowing device and a preform loading turntable, wherein the heating chain group for the bottle blowing machine is arranged between the bottle blowing device and the preform loading turntable.

[0012] An energy-saving method for heating preforms of bottle blowing machines, comprising the following steps:

[0013] Step a, turning the preform before heating by using a preform turning device so that the opening of the preform faces downward;

[0014] Step b, placing the preform with its opening facing downward into a lower and upper cocoon segments spaced parallel to each other within the U-shaped chain group, and heating the preform using a single row of heating lamps disposed equidistant from and parallel to the lower and upper cocoon segments, wherein the single row of heating lamps heats the preforms on the lower and upper cocoon segments on both sides simultaneously;

[0015] Step c: flipping the heated preform using a bottom preform flipping device so that the opening of the preform faces upward.

[0016] Preferably, the energy-saving method is applied to the above-mentioned heating chain group for the bottle blowing machine.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] First, after the preforms transported by the chain enter the U-shaped chain assembly, the lower and upper preform sections distribute the preforms on both sides of the heating lamps. Unlike the traditional method of distributing the preforms on one side of the heating lamps, which only heats the preforms on one side, the present invention enables a single row of heating lamps to heat the preforms on both sides simultaneously. This improves heating efficiency while reducing the number of heating lamps used, lowering energy consumption and achieving energy-saving effects.

[0019] Second, the preform enters the chain with its opening facing upward. The upper preform flipping device forces the preform to enter the U-shaped chain assembly with its opening facing downward, allowing the single row of heating lamps to heat the preforms on both sides simultaneously. After leaving the U-shaped chain, the heated preform is flipped a second time by the lower preform flipping device, with its opening facing upward. Because the preform runs with its opening facing downward within the U-shaped chain, the heating lamps can directly heat the body of the preform. This effectively heats the body while minimizing the need for heating the neck. Unlike traditional neck-up heating methods, this eliminates the need for an induced draft fan to continuously extract heat to prevent deformation at the neck of the preform, further enhancing the energy efficiency of the heating chain assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall operation of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall operation of the present invention Figure 2 ;

[0022] Figure 3 is a flow chart of the energy-saving method of the present invention;

[0023] Figure 4 This is a schematic diagram of the heating structure of an existing bottle blowing machine.

[0024] Among them: 1. Chain; 2. U-shaped chain assembly; 3. Heating lamp; 4. Sprocket; 5. Upper embryo turning device; 6. Lower embryo turning device; 7. Bottle blowing device; 8. Upper embryo turntable; 2-1. Arc segment; 2-2. Lower embryo segment; 2-3. Upper embryo segment; 2-4. Extension segment. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The present invention provides the following technical solutions: Specific implementation method 1

[0028] The following is an implementation of a heating chain group for a bottle blowing machine.

[0029] Combine Figure 1 As shown, the present embodiment discloses a heating chain group for a bottle blowing machine, comprising a chain 1 for conveying bottle preforms, wherein the chain 1 is provided with at least one U-shaped chain group 2, and the U-shaped chain group 2 comprises: an arc segment 2-1 for turning the chain 1, a lower embryo segment 2-2 arranged in the lower embryo direction of the arc segment 2-1, and an upper embryo segment 2-3 arranged in the upper embryo direction of the arc segment 2-1, wherein the lower embryo segment 2-2 and the upper embryo segment 2-3 are both straight segments and are arranged in parallel and at intervals, and a single row of heating lamps 3 is arranged between the lower embryo segment 2-2 and the upper embryo segment 2-3, and the heating lamps 3 are equidistant from the lower embryo segment 2-2 and the upper embryo segment 2-3 and are arranged in parallel, so that the single row of heating lamps 3 can simultaneously heat the bottle preforms on the lower embryo segment 2-2 and the upper embryo segment 2-3 on both sides thereof.

[0030] After the preforms transported by the chain 1 enter the U-shaped chain assembly 2, the lower preform segment 2-2 and the upper preform segment 2-3 distribute the preforms on both sides of the heating lamps 3. Unlike the conventional method of distributing the preforms on one side of the heating lamps 3 so that the heating lamps 3 can only heat the preforms on one side, the present invention enables a single row of heating lamps 3 to heat the preforms on both sides simultaneously. This improves heating efficiency while reducing the number of heating lamps 3 used, lowering energy consumption and achieving energy-saving effects.

[0031] Specifically, combined Figure 1 As shown, the lower embryo segment 2-2 and the upper embryo segment 2-3 are each provided with an extension segment 2-4 in the opening direction toward the U-shaped chain group 2, and the two extension segments 2-4 are both straight segments and are arranged in parallel and spaced apart. Another heating lamp tube 3 is provided between the two extension segments 2-4, and the heating lamp tube 3 is equidistant from the two extension segments 2-4 and is arranged in parallel.

[0032] The lower embryo segment 2-2 and the upper embryo segment 2-3 are extended by the extension segment 2-4, and another heating lamp 3 is arranged between the two extension segments 2-4 to extend the heating time of the preform and avoid overheating or insufficient heating of the preform.

[0033] Specifically, combined Figure 2 As shown, the multiple U-shaped chain groups 2 are all oriented in the same direction and are arranged in parallel at intervals. A sprocket 4 is provided between each adjacent two U-shaped chain groups 2. The sprockets 4 are respectively arranged tangentially to the lower embryo segment 2-2 and the upper embryo segment 2-3 of the two U-shaped chain groups 2 on both sides.

[0034] By arranging a plurality of U-shaped chain groups 2 in the longitudinal direction, the layout is rationalized, space is saved, and the heating time of the preform is prolonged, thereby preventing the preform from being overheated or insufficiently heated.

[0035] Specifically, combined Figure 2 As shown, the sprocket 4 is a tensioning wheel, and the tensioning direction of the sprocket 4 is the same as the opening direction of the U-shaped chain set 2.

[0036] The chain 1 is tensioned by the sprocket 4 to prevent the chain 1 from changing in length after heating, which would affect the distance between the preforms on the lower and upper sections 2-2 and 2-3 and the heating lamps 3, thereby ensuring stable operation and the heating quality of the preforms.

[0037] Specifically, combined Figure 2 As shown, the chain 1 before entering the U-shaped chain group 2 is provided with an upper embryo turning device 5, which is used to turn the bottle preform so that the bottle preform opening faces downward when entering the U-shaped chain group 2. The chain 1 after leaving the U-shaped chain group 2 is provided with a lower embryo turning device 6, which is used to turn the bottle preform so that the bottle preform opening faces upward when leaving the U-shaped chain group 2.

[0038] The preform enters the chain 1 with its opening facing upward. The upper preform turning device 5 forces the preform to enter the U-shaped chain assembly 2 with its opening facing downward, allowing the single row of heating lamps 3 to heat the preforms on both sides simultaneously. After leaving the U-shaped chain assembly 2, the heated preform is turned a second time by the lower preform turning device 6, with its opening facing upward. Because the preform runs with its opening facing downward within the U-shaped chain assembly 2, the heating lamps 3 can directly heat the body of the preform. This effectively heats the body while minimizing the need for heating the neck of the preform. Unlike traditional neck-up heating methods, this eliminates the need for an induced draft fan to continuously extract heat to prevent deformation at the neck of the preform, further enhancing the energy efficiency of the heating chain assembly. Specific implementation method 2

[0040] The following is an implementation method of an energy-saving bottle blowing machine.

[0041] An energy-saving bottle blowing machine comprises: a bottle blowing device 7 and a preform loading turntable 8. A heating chain group for a bottle blowing machine disclosed in a first embodiment is arranged between the bottle blowing device 2 and the preform loading turntable 3.

[0042] The preform enters the upper preform turntable 8 with its opening facing upward. After exiting the upper preform turntable 8, the preform is turned by the upper preform turning device 5, which forces it to enter the U-shaped chain assembly 2 with its opening facing downward. This allows the single row of heating lamps 3 to simultaneously heat the preforms on both sides. After leaving the U-shaped chain assembly 2, the heated preform is turned a second time by the lower preform turning device 6, with its opening facing upward. A gripping device then delivers the preform to the blowing device 7 for blowing, where the blown bottles are then directly sent to the next process. Because the blow molding machine utilizes a single row of heating lamps 3 to simultaneously heat the preforms on both sides, heating efficiency is improved while reducing the number of heating lamps 3 used, lowering energy consumption and achieving energy savings. Furthermore, since the preforms enter the U-shaped chain assembly 2 with their opening facing downward for heating, there is no need for an induced draft fan to continuously extract heat to prevent deformation of the preform's neck, further enhancing energy savings. Specific implementation method three

[0044] The following is an implementation method of an energy-saving method for heating preforms in a bottle blowing machine. This method can be implemented alone or applied to a heating chain assembly for a bottle blowing machine disclosed in the first specific implementation method.

[0045] Combine Figure 3 As shown, an energy-saving method for heating preforms of bottle blowing machines includes the following steps:

[0046] Step a, turning the preform before heating by the preform turning device 5 so that the opening of the preform faces downward;

[0047] Step b: The preform with its opening facing downward enters the lower and upper sections 2-2 and 2-3 spaced apart in parallel within the U-shaped chain assembly 2, and the preform is heated by a single row of heating lamps 3 disposed equidistant from and parallel to the lower and upper sections 2-2 and 2-3, respectively. During heating, the single row of heating lamps 3 simultaneously heats the preforms on the lower and upper sections 2-2 and 2-3 on both sides thereof.

[0048] Step c: The heated preform is turned over by the lower preform turning device 6 so that the opening of the preform faces upward.

[0049] Specifically, the energy-saving method is applied to a heating chain group for a bottle blowing machine disclosed in the first embodiment.

[0050] The upper preform turning device 5 forces the preform opening downward into the U-shaped chain assembly 2, allowing the single row of heating lamps 3 to simultaneously heat the preforms on both sides. After leaving the U-shaped chain assembly 2, the heated preforms are turned a second time by the lower preform turning device 6, with the opening facing upward for delivery to the next process. The simultaneous heating of the preforms on both sides by a single row of heating lamps 3 improves heating efficiency while reducing the number of heating lamps 3 used, lowering energy consumption and achieving energy savings. Furthermore, since the preforms enter the U-shaped chain assembly 2 with their openings facing downward for heating, there is no need for an induced draft fan to continuously extract heat to prevent deformation at the preform's neck, further enhancing energy savings.

[0051] While 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 alterations may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating chain assembly for a bottle blowing machine, comprising a chain (1) for conveying preforms, characterized in that: At least one U-shaped chain group (2) is provided on the chain (1), and the U-shaped chain group (2) comprises: an arc segment (2-1) for steering the chain (1), a lower embryo segment (2-2) provided in the lower embryo direction of the arc segment (2-1), and an upper embryo segment (2-3) provided in the upper embryo direction of the arc segment (2-1), the lower embryo segment (2-2) and the upper embryo segment (2-3) are both straight segments and are arranged in parallel and spaced apart, a single row of heating lamp tubes (3) is provided between the lower embryo segment (2-2) and the upper embryo segment (2-3), the heating lamp tubes (3) are equidistant from the lower embryo segment (2-2) and the upper embryo segment (2-3), respectively, and are arranged in parallel, so that the single row of heating lamp tubes (3) can simultaneously heat the bottle embryos on the lower embryo segment (2-2) and the upper embryo segment (2-3) on both sides thereof.

2. A heating chain assembly for a bottle blowing machine according to claim 1, characterized in that: The lower embryo segment (2-2) and the upper embryo segment (2-3) are each provided with an extension segment (2-4) in the direction of the opening of the U-shaped chain group (2); the two extension segments (2-4) are both straight segments and are arranged in parallel and spaced apart; another heating lamp tube (3) is provided between the two extension segments (2-4); the heating lamp tube (3) is equidistant from the two extension segments (2-4) and is arranged in parallel.

3. A heating chain assembly for a bottle blowing machine according to claim 1, characterized in that: The plurality of U-shaped chain groups (2) are all arranged in the same direction and in parallel with each other. A sprocket (4) is provided between two adjacent U-shaped chain groups (2). The sprocket (4) is respectively arranged tangentially to the lower embryo segment (2-2) and the upper embryo segment (2-3) of the two U-shaped chain groups (2) on both sides.

4. A heating chain assembly for a bottle blowing machine according to claim 3, characterized in that: The sprocket (4) is a tensioning wheel, and the tensioning direction of the sprocket (4) is the same as the opening direction of the U-shaped chain group (2).

5. The heating chain assembly for a bottle blowing machine according to claim 1, characterized in that: An upper embryo turning device (5) is provided on the chain (1) before entering the U-shaped chain group (2), and the upper embryo turning device (5) is used to turn the bottle preform so that the bottle preform opening faces downward and enters the U-shaped chain group (2). A lower embryo turning device (6) is provided on the chain (1) after leaving the U-shaped chain group (2), and the lower embryo turning device (6) is used to turn the bottle preform so that the bottle preform opening faces upward and leaves the U-shaped chain group (2).

6. An energy-saving bottle blowing machine, characterized in that: include: A bottle blowing device (7) and a preform loading turntable (8), wherein a heating chain group for a bottle blowing machine according to any one of claims 1, 2, 3, 4 or 5 is arranged between the bottle blowing device (2) and the preform loading turntable (3).

7. An energy-saving method for heating preforms in a bottle blowing machine, characterized by: The following steps are involved: Step a, turning over the preform before heating by the preform turning device (5) so that the opening of the preform faces downward; Step b, allowing the bottle preform with its opening facing downward to enter the lower embryo segment (2-2) and the upper embryo segment (2-3) arranged in parallel and spaced apart in the U-shaped chain group (2), and heating the bottle preform by means of a single row of heating lamps (3) arranged at equal distances from and in parallel to the lower embryo segment (2-2) and the upper embryo segment (2-3), and during heating, the single row of heating lamps (3) simultaneously heats the bottle preforms on the lower embryo segment (2-2) and the upper embryo segment (2-3) on both sides thereof; Step c: flipping the heated preform via the lower preform flipping device (6) so that the opening of the preform faces upward.

8. The energy-saving method for heating preforms in a bottle blowing machine according to claim 7, characterized in that: The energy-saving method is applied to the heating chain assembly for a bottle blowing machine as described in claim 5.

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