High-efficiency feeding structure of bottle blowing machine

Abstract

The utility model relates to the field of plastic bottle production, in particular to a high-efficiency feeding structure of a bottle blowing machine. The technical problem is that a bottle blank needs to pass through a plurality of heating devices to achieve the effect of overall softening of the bottle blank, and consequently a large amount of energy needs to be consumed in the overall process of heating the bottle blank. According to the technical scheme, the high-efficiency bottle blowing machine feeding structure comprises a rack base, a first air inlet pipe, a mounting block, a power assembly and the like; the rack base is connected with a power assembly. The power assembly is connected with a plurality of first air inlet pipes. Each first air inlet pipe communicates with and is fixedly connected with a mounting block. And through cooperation of the heating pipe and hot air, internal and external synchronous heating of the bottle preform can be accelerated, so that the overall heating speed of the bottle preform can be accelerated, and the production efficiency of bottle preform processing is improved.

Description

Technical Field

[0001] The utility model relates to the field of plastic bottle production, in particular to a high-efficiency feeding structure of a bottle blowing machine. Background Art

[0002] In the existing plastic bottle production process, the preform is first placed on a conveying structure, which drives the preform to move, and the preform is softened by multiple heating devices and then placed in a molding device. The softened preform is then blown into a plastic bottle by the molding device.

[0003] In the above process, the preform needs to pass through multiple heating devices to achieve the overall softening effect of the preform, which results in the overall process of heating the preform consuming a lot of energy. In addition, the existing heating equipment usually heats the outside of the preform to soften the preform from the outside to the inside. In this process, the preform is affected by the temperature difference between the inside and the outside, which can easily cause the preform to deform. In addition, the heating speed is not fast enough, which can easily affect the quality and molding speed of the molded plastic bottle. Utility Model Content

[0004] In order to overcome the disadvantage that the preform needs to pass through multiple heating devices to achieve the overall softening effect of the preform, which leads to the overall process of heating the preform consuming a large amount of energy, the utility model provides a high-efficiency feeding structure for a bottle blowing machine.

[0005] The technical implementation scheme of the utility model is as follows: a high-efficiency feeding structure of a bottle blowing machine comprises a frame seat, an air inlet pipe 1, a mounting block, a power assembly, a heating assembly and a molding assembly; the frame seat is connected to the power assembly; the power assembly is connected to a plurality of air inlet pipes 1, and the power assembly is used to drive the air inlet pipe 1 to move; each air inlet pipe 1 is connected to and fixedly connected to a mounting block; the frame seat is connected to the heating assembly; the frame seat is connected to the molding assembly; it also comprises an annular frame plate, a flexible annular plate, a short tube, a partition, a conveying assembly and a blocking assembly; the frame seat is fixedly connected to the annular frame plate; the annular frame plate is rotatably connected to the flexible annular plate; the flexible annular plate is fixedly connected to a short tube adjacent to and matching the air inlet pipe 1, and each short tube They are all connected and fixedly connected to the corresponding air inlet pipe; each short pipe is provided with a one-way valve that opens in the direction away from the annular frame plate; each air inlet pipe is provided with a one-way valve that opens upward, and the one-way valve that opens upward is located below the corresponding short pipe; two partitions are fixedly connected in the annular frame plate, and each partition is in contact with the flexible annular plate; the annular frame plate, the flexible annular plate and the two partitions cooperate to form a cavity; each mounting block is provided with a number of air outlets; the heating component is connected to a conveying component for conveying hot air into the cavity, and the conveying component is connected to the annular frame plate; the frame seat is connected to a blocking component for blocking the air outlet, and the blocking component is connected to all the air inlet pipes.

[0006] As an improvement of the above solution, the heating component includes a rack frame 1 and a heating tube; the rack base is fixedly connected to the rack frame 1; a plurality of heating tubes are arranged in the rack frame 1; and the rack frame 1 is connected to the conveying component.

[0007] As an improvement of the above scheme, the molding assembly includes a frame 2, a hydraulic push rod and a mold; the frame seat is fixedly connected to the frame 2; two hydraulic push rods are arranged in the frame 2; the telescopic part of each hydraulic push rod is fixedly connected to a mold for molding the bottle blank.

[0008] As an improvement of the above scheme, the conveying component includes a pump, an air inlet pipe and an air outlet pipe; the rack frame is fixedly connected to the pump; the rack frame is connected to and fixedly connected with the air inlet pipe, and the air inlet pipe is connected to and fixedly connected with the pump; the pump is connected to and fixedly connected with the air outlet pipe, and the air outlet pipe is fixedly connected to the annular frame plate, and the air outlet pipe is connected to the cavity.

[0009] As an improvement on the above scheme, the blocking assembly includes a mounting plate, a sliding plate, a spring, a blocking rod, an electric push rod and a pushing rod; each short tube is fixedly connected to a mounting plate; each short tube is slidably connected to a sliding plate; each sliding plate is provided with a protrusion; each sliding plate is fixedly connected to a spring, and the spring is fixedly connected to the corresponding mounting plate; each mounting plate is fixedly connected to a blocking rod matching the number of air outlets, and each blocking rod is aligned with the corresponding air outlet; the frame seat is fixedly connected to the electric push rod, and the electric push rod is located in the middle of the inner side of the frame frame; the telescopic part of the electric push rod is fixedly connected to the pushing rod.

[0010] As an improvement of the above solution, the overall volume of all the air outlet holes on the mounting block is greater than the volume of the short tube.

[0011] As an improvement of the above scheme, a blocking plate is also included; the two partitions are fixedly connected with a blocking plate with an inclined upper side; the blocking plate is used to control the hot air entering the short tube, and the blocking plate is in contact with the flexible annular plate.

[0012] The beneficial effect is that the heating tube and the hot air can be used to accelerate the heating speed of the preform, thereby increasing the overall production efficiency, thereby avoiding the problem that the preform usually needs to pass through multiple heating devices to achieve the overall softening effect of the preform, which leads to the problem that the overall process of heating the preform consumes a lot of energy;

[0013] By pumping the hot air in the frame to the inside of the preform for heating, the outside and inside of the preform can be heated simultaneously, thus avoiding the conventional method of heating the outside of the preform by a heating tube to soften the preform from the outside to the inside. In this process, the preform is easily deformed due to the temperature difference between the inside and the outside, which in turn easily leads to quality problems of the formed plastic bottle.

[0014] By setting the overall volume of all the air outlet holes on the mounting block to be larger than the volume of the short tube, it is avoided that when the air outlet volume of all the air outlet holes on the mounting block is smaller than the air intake volume of the short tube, the hot air is not discharged in time, which will cause positive pressure in the preform, thereby causing the preform to deform and affecting the subsequent blow molding process;

[0015] The short tube is restricted by the blocking plate so that the hot air entering the short tube gradually increases from right to left. This avoids the problem that the temperature inside the preform is higher than the temperature outside the preform due to the relatively slow softening process of the preform. If a large amount of hot air is directly transported into the preform, the temperature may be higher than the temperature outside the preform, which may cause the preform to deform during the softening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the first structure disclosed for the feeding structure of the bottle blowing machine with high efficiency of the utility model;

[0017] Figure 2 This is a schematic diagram of the second structure disclosed by the utility model for the feeding structure of the bottle blowing machine with high efficiency;

[0018] Figure 3 This is a third structural schematic diagram of the feeding structure of the bottle blowing machine with high efficiency disclosed by the utility model;

[0019] Figure 4 This is a fourth structural schematic diagram of the feeding structure of the bottle blowing machine with high efficiency disclosed by the utility model;

[0020] Figure 5 The schematic diagram of the structure of the air inlet pipe 1, the mounting block, the annular frame plate, the flexible annular plate, the short pipe, the partition plate, the annular slide rail and the blocking plate disclosed in the feeding structure of the high-efficiency bottle blowing machine of the utility model;

[0021] Figure 6 A schematic diagram of the structure of the air inlet pipe 1, the mounting block, the short pipe, the mounting plate, the sliding plate, the spring and the blocking rod disclosed in the feeding structure of the bottle blowing machine with high efficiency of the utility model;

[0022] Figure 7 The utility model discloses a plan view of a mounting block, an annular frame plate, a flexible annular plate, a partition plate and a blocking plate disclosed in the feeding structure of a bottle blowing machine with high efficiency.

[0023] Names of the numbers in the figure: 1-frame seat, 2-inlet pipe one, 3-mounting block, 4-annular frame plate, 5-flexible annular plate, 6-short tube, 7-partition, 101-annular slide rail, 102-electric moving block, 201-frame frame one, 202-heating tube, 301-frame frame two, 302-hydraulic push rod, 303-mold, 401-pump, 402-inlet pipe two, 403-outlet pipe, 501-mounting plate, 502-sliding plate, 503-spring, 504-blocking rod, 505-electric push rod, 506-push rod, 601-blocking plate, 3a-outlet hole, 4a-cavity, 502a-protrusion. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] A high-efficiency feeding structure of a bottle blowing machine, such as Figure 1-7 As shown, it includes a frame base 1, an air inlet pipe 2, a mounting block 3, a power assembly, a heating assembly and a molding assembly; the frame base 1 is connected to the power assembly; the power assembly is connected to a plurality of air inlet pipes 2, and the power assembly is used to drive the air inlet pipes 2 to move; each air inlet pipe 2 is connected and fixed to a mounting block 3; the frame base 1 is connected to the heating assembly for heating the bottle blank; the frame base 1 is connected to the molding assembly for molding the bottle blank;

[0027] It also includes an annular frame plate 4, a flexible annular plate 5, a short tube 6, a partition 7, a conveying component and a blocking component; the frame seat 1 is fixedly connected to the annular frame plate 4; the annular frame plate 4 is rotatably connected to the flexible annular plate 5; the flexible annular plate 5 is fixedly connected to a short tube 6 adjacent to and matching the air inlet pipe 2, and each short tube 6 is connected and fixedly connected to the corresponding air inlet pipe 2; each short tube 6 is provided with a one-way valve that opens in a direction away from the annular frame plate 4; each air inlet pipe 2 is provided with a one-way valve that opens upward, and the one-way valve that opens upward is located below the corresponding short tube 6; two partitions 7 are fixedly connected to the annular frame plate 4, and each partition 7 is in contact with the flexible annular plate 5; the annular frame plate 4, the flexible annular plate 5 and the two partitions 7 cooperate to form a cavity 4a; each mounting block 3 is provided with five air outlet holes 3a; the heating component is connected to the conveying component, and the conveying component is connected to the annular frame plate 4; the frame seat 1 is connected to the blocking component, and the blocking component is connected to all the air inlet pipes 2.

[0028] The power assembly includes an annular slide rail 101 and an electric moving block 102; the frame seat 1 is connected to the annular slide rail 101, the annular slide rail 101 is slidably connected to the electric moving block 102 matching the number of the intake pipe 1 2, and the electric moving block 102 is fixedly connected to the intake pipe 1 2.

[0029] The heating assembly includes a rack frame 201 and a heating tube 202; the rack base 1 is bolted to the rack frame 201; a plurality of heating tubes 202 symmetrically distributed front and back are arranged in the rack frame 201, and the heating tubes 202 are used to heat the preform; the rack frame 201 is connected to a conveying assembly.

[0030] The forming assembly includes a frame frame 301, a hydraulic push rod 302 and a mold 303; the frame seat 1 is bolted to the frame frame 301; two hydraulic push rods 302 distributed front and back are arranged in the frame frame 301; and a mold 303 is fixedly connected to the telescopic part of each hydraulic push rod 302.

[0031] The conveying assembly includes a pump 401, an air inlet pipe 402 and an air outlet pipe 403; the frame 201 is bolted to the pump 401; the frame 201 is connected to and fixedly connected with the air inlet pipe 402, and the air inlet pipe 402 is connected to and fixedly connected with the pump 401; the pump 401 is connected to and fixedly connected with the air outlet pipe 403, and the air outlet pipe 403 is fixedly connected to the annular frame plate 4, and the air outlet pipe 403 is connected to the cavity 4a.

[0032] The blocking assembly includes a mounting plate 501, a sliding plate 502, a spring 503, a blocking rod 504, an electric push rod 505 and a pushing rod 506; each short tube 6 is fixedly connected to a mounting plate 501; each short tube 6 is slidably connected to a sliding plate 502; each sliding plate 502 is provided with a protrusion 502a; each sliding plate 502 is fixedly connected to a spring 503, and the spring 503 is fixedly connected to the corresponding mounting plate 501; each mounting plate 501 is fixedly connected to five blocking rods 504, each blocking rod 504 is aligned with the corresponding air outlet 3a, and the blocking rod 504 is used to block the air outlet 3a; the frame seat 1 is bolted with an electric push rod 505, and the electric push rod 505 is located in the middle of the inner side of the frame frame 301; the telescopic part of the electric push rod 505 is fixedly connected to the pushing rod 506.

[0033] The overall volume of all the air outlet holes 3 a on the mounting block 3 is greater than the volume of the short tube 6 .

[0034] The specific operation of the above-mentioned embodiment 1 is as follows: the front right side of the annular slide rail 101 is a loading area, and the front left side of the annular slide rail 101 is a unloading area;

[0035] First, the heating tube 202 is started, and then the external loading device is controlled to fix the preform in an inverted state on the mounting block 3 in the loading area, and then the electric moving block 102 is controlled to drive the air inlet pipe 102 and its connected parts to move counterclockwise from top to bottom along the annular slide rail 101, so that the mounting block 3 drives the preform to pass through all the heating tubes 202 from right to left. In this process, the preform is heated by the heating tube 202 to soften the preform as a whole. When the preform is located between the two molds 303 driven by the electric moving block 102, the telescopic parts of the two hydraulic push rods 302 are controlled to extend to make the two molds 303 contact each other. At this time, the lower side of the mold cavity of each mold 303 will contact the lower side of the preform, and then the delivery pipe of the external air pressure device is controlled to be connected with the air inlet pipe 102, and then the external air pressure device is controlled to deliver gas into the preform through the air inlet pipe 102 and the mounting block 3 in turn, so that the preform is formed under the cooperation of the gas and the two molds 303, so that the preform is blown into a plastic bottle;

[0036] When the preform is being formed, the conveying pipe of the external air pressure device is controlled to no longer be connected to the air inlet pipe 2. At the same time, the telescopic parts of the two hydraulic push rods 302 are controlled to retract, so that the two molds 303 are away from the plastic bottle and return to the initial position, and then the electric moving block 102 is controlled to continue to drive the air inlet pipe 2 and the parts connected thereto to move, so that the plastic bottle is driven by the electric moving block 102 to move to the unloading area, and then the plastic bottle is removed from the mounting block 3 by the external unloading device, thus completing the molding process of the plastic bottle;

[0037] It should be noted that, when the electric moving block 102 drives the air inlet pipe 2 and its connected parts to move, the electric moving block 102 will drive the flexible annular plate 5 to move synchronously through the air inlet pipe 2 and the short tube 6, and when the preform passes through all the heating tubes 202, the short tube 6 will communicate with the cavity 4a formed by the annular frame plate 4, the flexible annular plate 5 and the two partitions 7, and as the electric moving block 102 moves, the short tube 6 will communicate through the cavity 4a from right to left. In this process, the control pump 401 is started, so that the pump 401 pushes the inside of the frame frame 201 through the air inlet pipe 202. The hot air is drawn into the interior thereof, and then transported into the cavity 4a through the air outlet pipe 403, so that the hot air enters the bottle blank through the short pipe 6, the air inlet pipe 2 and the mounting block 3 in sequence, and the hot air entering the bottle blank flows out through the air outlet 3a, thereby heating the interior of the bottle blank, so that the heating pipe 202 and the hot air cooperate to speed up the heating speed of the bottle blank, thereby speeding up the overall production efficiency, thereby avoiding the problem that the existing heating of the bottle blank usually requires the bottle blank to pass through multiple heating devices to achieve the overall softening effect of the bottle blank, thereby resulting in the overall process of heating the bottle blank consuming a lot of energy;

[0038] Moreover, the hot air in the frame 201 is pumped to the inside of the preform by the pump 401 to heat the preform, so that the outside and the inside of the preform can be heated simultaneously, thereby avoiding the problem that the preform is usually heated by the heating tube 202 to soften the preform from the outside to the inside. In this process, the preform is easily deformed due to the temperature difference between the inside and the outside.

[0039] It should be noted that, since a one-way valve opening in a direction away from the annular frame plate 4 is provided in the short tube 6, and a one-way valve opening upward is provided in the air intake pipe 2, and the one-way valve is located below the short tube 6, when the hot air passes through the air intake pipe 2, the hot air cannot flow out through the opening at the lower end of the air intake pipe 2 due to the restriction of the one-way valve opening upward provided in the air intake pipe 2, and when the gas passes through the air intake pipe 2, the gas cannot enter the short tube 6 due to the restriction of the one-way valve opening in a direction away from the annular frame plate 4 provided in the short tube 6;

[0040] It should be noted that when the preform is between the two molds 303, the protrusion 502a will be directly above the push rod 506. At this time, the telescopic part of the electric push rod 505 is controlled to push the sliding plate 502 to move upward through the push rod 506 and the protrusion 502a in sequence, so that the sliding plate 502 pushes the blocking rod 504 to insert into the air outlet 3a, thereby blocking the air outlet 3a. At this time, the spring 503 is in a stretched state, so as to avoid the problem that when the gas enters the preform, it will flow out of the preform through the air outlet 3a.

[0041] It should be noted that the maximum air intake of the short tube 6 is less than the total maximum air outlet of all the air outlet holes 3a on the mounting block 3, so as to avoid the problem that when the air outlet of all the air outlet holes 3a on the mounting block 3 is less than the air intake of the short tube 6, the hot air is not discharged in time, which will cause positive pressure to be generated in the bottle blank, and then cause the bottle blank to deform, which affects the subsequent blow molding process.

[0042] Example 2

[0043] On the basis of Example 1, Figure 5 As shown, a blocking plate 601 is also included; the two partitions 7 are fixedly connected with the blocking plate 601 with an inclined upper side, and the blocking plate 601 is in contact with the flexible annular plate 5.

[0044] The specific operation of the above-mentioned embodiment 2 is as follows: It should be noted that, if Figure 5As shown, in the process of the short tube 6 passing through the cavity 4a from right to left, since the upper side of the blocking plate 601 is inclined, the short tube 6 is restricted by the blocking plate 601, and the entire tube opening of the short tube 6 is gradually reduced from right to left due to the restriction of the blocking plate 601, and the hot air entering the short tube 6 is gradually increased from right to left. In this way, the preform is heated to soften in the process of passing through all the heating tubes 202 from right to left, that is, the softening process of the preform is relatively slow. If a large amount of hot air is directly transported into the preform, a large amount of heat energy will be quickly accumulated inside the preform in the limited space of the preform, which will easily cause the heating rate inside the preform to be greater than the heating rate outside the preform, and the uneven heating rate will cause the preform to deform during the softening process.

[0045] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A high-efficiency feeding structure for a bottle blowing machine, comprising a frame base (1), an air inlet pipe (2), a mounting block (3), a power assembly, a heating assembly and a molding assembly; the frame base (1) is connected to the power assembly; the power assembly is connected to a plurality of air inlet pipes (2), the power assembly is used to drive the air inlet pipes (2) to move; each air inlet pipe (2) is connected to and fixedly connected to a mounting block (3); the frame base (1) is connected to the heating assembly; the frame base (1) is connected to the molding assembly; its characteristics are: The machine also comprises an annular frame plate (4), a flexible annular plate (5), a short tube (6), a partition plate (7), a conveying assembly and a blocking assembly; the frame base (1) is fixedly connected to the annular frame plate (4); the annular frame plate (4) is rotatably connected to the flexible annular plate (5); the flexible annular plate (5) is fixedly connected to a short tube (6) adjacent to and matching the air intake pipe (2), and each short tube (6) is connected to and fixedly connected to the corresponding air intake pipe (2); each short tube (6) is provided with a one-way valve that opens in a direction away from the annular frame plate (4); each air intake pipe (2) is provided with a one-way valve that opens upwards, and the one-way valve that opens upwards is The valve is located below the corresponding short tube (6); two partitions (7) are fixedly connected to the annular frame plate (4), and each partition (7) is in contact with the flexible annular plate (5); the annular frame plate (4), the flexible annular plate (5) and the two partitions (7) cooperate to form a cavity (4a); each mounting block (3) is provided with a plurality of air outlets (3a); the heating component is connected to a conveying component for conveying hot air into the cavity (4a), and the conveying component is connected to the annular frame plate (4); the frame seat (1) is connected to a blocking component for blocking the air outlet (3a), and the blocking component is connected to all the air inlet pipes (2).

2. A high-efficiency feeding structure for a bottle blowing machine according to claim 1, characterized in that: The heating component comprises a rack frame (201) and a heating tube (202); the rack seat (1) is fixedly connected to the rack frame (201); a plurality of heating tubes (202) are arranged in the rack frame (201); and the rack frame (201) is connected to a conveying component.

3. A high-efficiency feeding structure for a bottle blowing machine according to claim 2, characterized in that: The molding assembly comprises a second frame (301), a hydraulic push rod (302) and a mold (303); the frame seat (1) is fixedly connected to the second frame (301); two hydraulic push rods (302) are arranged in the second frame (301); and the telescopic part of each hydraulic push rod (302) is fixedly connected to a mold (303) for molding a preform.

4. A high-efficiency feeding structure for a bottle blowing machine according to claim 3, characterized in that: The conveying assembly comprises a pump (401), a second air inlet pipe (402) and an air outlet pipe (403); the first frame (201) is fixedly connected to the pump (401); the first frame (201) is connected to and fixedly connected to the second air inlet pipe (402), and the second air inlet pipe (402) is connected to and fixedly connected to the pump (401); the pump (401) is connected to and fixedly connected to the air outlet pipe (403), and the air outlet pipe (403) is fixedly connected to the annular frame plate (4), and the air outlet pipe (403) is connected to the cavity (4a).

5. A high-efficiency feeding structure for a bottle blowing machine according to claim 4, characterized in that: The blocking assembly comprises a mounting plate (501), a sliding plate (502), a spring (503), a blocking rod (504), an electric push rod (505) and a pushing rod (506); each short tube (6) is fixedly connected to a mounting plate (501); each short tube (6) is slidably connected to a sliding plate (502); each sliding plate (502) is provided with a protrusion (502a); each sliding plate (502) is fixedly connected to a spring (503 ), and the spring (503) is fixedly connected to the corresponding mounting plate (501); each mounting plate (501) is fixedly connected to a blocking rod (504) whose number matches the number of air outlet holes (3a), and each blocking rod (504) is aligned with the corresponding air outlet hole (3a); the frame seat (1) is fixedly connected to an electric push rod (505), and the electric push rod (505) is located in the middle of the inner side of the frame frame (301); the telescopic portion of the electric push rod (505) is fixedly connected to a push rod (506).

6. A high-efficiency feeding structure for a bottle blowing machine according to any one of claims 4 to 5, characterized in that: The overall volume of all the air outlet holes (3a) on the mounting block (3) is greater than the volume of the short tube (6).

7. A high-efficiency feeding structure for a bottle blowing machine according to claim 6, characterized in that: It also includes a blocking plate (601); the two partition plates (7) are fixedly connected to a blocking plate (601) with an inclined upper side; the blocking plate (601) is used to control the hot air from entering the short tube (6), and the blocking plate (601) is in contact with the flexible annular plate (5).

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