Low-pressure gas control system of bottle blowing machine

Abstract

The utility model discloses a low-pressure gas control system of a bottle blowing machine, which belongs to the field of rotary bottle blowing machines and comprises a pressure reducing valve group, a blank-kicking bottle-falling cylinder module, a bottle blank dust removal module, a water path control module, a brake module and a heating machine gas path distribution module, the air inlet end of the pressure reducing valve set is connected with a recycled air conveying pipe, and the outlet end of the pressure reducing valve set is communicated with the blank and bottle kicking and falling cylinder module, the bottle blank dust removal module, the water path control module, the brake module and the heating machine distribution air path module through hoses. Gas recovered after bottle blowing is completed can be used for controlling the positions of all air cylinders of the bottle blowing machine to work, the structure is simple, and disassembly is convenient; independent operation can be realized, automatic gas cut-off can be realized, maintenance is convenient, and time cost is saved; energy is saved, and production cost is reduced. The whole low-pressure gas control system is controlled by the main machine through the electromagnetic valve, and problems can be found in time and monitored at any time.

Description

Technical Field

[0001] The utility model relates to the field of rotary bottle blowing machines, in particular to a low-pressure gas control system of a bottle blowing machine. Background Art

[0002] The rotary blow molding machine is a device that uses the blow molding process to make plastic particles into hollow containers. The more common models include the hollow extrusion blow molding machine that uses PP and PE for one-time molding, the injection stretch blow molding machine that uses PET, PC or PP for two-time molding, and the newly developed multi-layer hollow extrusion blow molding and stretch blow molding. Most of the blow molding machines are still two-step blow molding machines, that is, the plastic raw materials must be made into bottle blanks first, and then blown. The current bottle blowing process is a six-valve bottle blowing process, that is, pre-blowing-mid-blowing-primary recovery-high-pressure blowing-secondary recovery-exhaust six steps, the only air intake is high-pressure gas, these gases enter different gas storage rings through different ways, and then distributed to the required positions, and further blow molding each bottle blank.

[0003] The gas after the existing bottle blowing is low-pressure gas, which is generally discharged directly, and cannot be reasonably and fully utilized, which is easy to waste resources and cannot reduce the use cost well. Utility Model Content

[0004] With regard to the above problems existing in the prior art, the purpose of the present invention is to provide a low-pressure gas control system for a bottle blowing machine to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A low-pressure air control system for a bottle blowing machine comprises a pressure reducing valve group, a cylinder module for kicking blanks and bottles and dropping bottles, a bottle blank dust removal module, a water circuit control module, a brake module and a heater air distribution module; the air inlet end of the pressure reducing valve group is connected to a recovery air transmission pipe, and the outlet end of the pressure reducing valve group is connected to the cylinder module for kicking blanks and bottles and dropping bottles, the bottle blank dust removal module, the water circuit control module, the brake module and the heater air distribution module through a hose; the cylinder module for kicking blanks and bottles and dropping bottles comprises a kicking cylinder, a kicking cylinder and a dropping bottle cylinder; the heater air distribution module comprises an air cooling control unit, a lower blank blowing unit, a blank pressing cylinder, a lifting cylinder and a blank stopping cylinder.

[0007] As a further solution of the utility model: the pressure reducing valve group includes an air dividing block, a pressure reducing valve, and a pressure reducing valve connecting plate; the inlet end of the air dividing block is connected to the recovery gas transmission pipe; the outlet end of the air dividing block is connected to the first joint through a hose, and the first joint is connected to the pressure reducing valve. Five pressure reducing valves are provided, and the five pressure reducing valves are installed on the pressure reducing valve connecting plate.

[0008] As a further solution of the utility model: the said kicking and bottle dropping cylinder module comprises a second joint, one end of which is connected to a pressure reducing valve in the pressure reducing valve group, and the other end of which is connected to the kicking cylinder, the bottle kicking cylinder and the bottle dropping cylinder respectively through a hose;

[0009] A first solenoid valve is installed on the hose connected between the second joint and the billet-kicking cylinder, the hose connected between the second joint and the bottle-kicking cylinder, and the hose connected between the second joint and the bottle-dropping cylinder;

[0010] The second joint, the first electromagnetic valve, the blank-kicking cylinder and the blank-kicking plate are connected; the bottle-kicking cylinder and the bottle-kicking plate are connected; and the bottle-dropping cylinder and the bottle-dropping plate are connected.

[0011] As a further solution of the utility model: the preform dust removal module comprises an air inlet and an air distributor, the air inlet is connected to the second pressure reducing valve in the pressure reducing valve group through a hose, and the air inlet is installed on the air distributor.

[0012] As a further solution of the utility model: the water circuit control module includes a second solenoid valve and a pneumatic butterfly valve, one end of the second solenoid valve is connected to the third pressure reducing valve in the pressure reducing valve group, and the other end of the second solenoid valve is connected to the pneumatic butterfly valve through a hose, and the pneumatic butterfly valve is installed on the water pipe of the water circuit.

[0013] As a further solution of the utility model: the brake module includes a third solenoid valve and a brake, one end of the third solenoid valve is connected to the fourth pressure reducing valve in the pressure reducing valve group through a hose, and the other end of the third solenoid valve is connected to the brake.

[0014] As a further solution of the utility model: the brakes are provided in three groups.

[0015] As a further solution of the utility model: the heater air distribution module includes a third joint, one end of the third joint is connected to the fifth pressure reducing valve in the pressure reducing valve group through a hose, the other end of the third joint is respectively connected to the fourth solenoid valve and the solenoid valve group, and the fourth solenoid valve is connected to the air cooling control unit; the solenoid valve group is respectively connected to the lower billet blowing unit, the billet pressing cylinder, the lifting cylinder, and the billet stopping cylinder.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The gas recovered after bottle blowing in the utility model can be used to control the various cylinder control positions of the bottle blowing machine. The recovered gas enters the pressure reducing valve through the air pipe and enters the kicking cylinder, bottle preform dust removal, brake and other positions respectively, and the equipment is pneumatically controlled to form a complete control system; the pipelines at various locations are connected and circulated with hoses, which have a simple structure and are easy to disassemble; each distribution system has a simple structure, can operate independently, can automatically cut off the gas, is easy to maintain, and can replace components in time, saving time and cost; the gas used in the utility model is the gas recovered after bottle blowing, which saves energy and reduces production costs. The entire low-pressure gas control system of the utility model is controlled by the host through the solenoid valve, which can detect problems in time and monitor at all times. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a principle block diagram of a low-pressure gas control system of a bottle blowing machine disclosed in an embodiment.

[0019] Figure 2 The figure is an overall structural diagram of a low-pressure gas control system of a bottle blowing machine disclosed in an embodiment.

[0020] Figure 3 The present invention is a schematic structural diagram of a pressure reducing valve group in a low-pressure gas control system of a bottle blowing machine disclosed in an embodiment.

[0021] Figure 4 The present invention is a schematic structural diagram of a cylinder module for kicking blanks, kicking bottles and dropping bottles in a low-pressure air control system of a bottle blowing machine disclosed in an embodiment.

[0022] Figure 5 The present invention is a schematic structural diagram of a preform dust removal module in a low-pressure gas control system of a bottle blowing machine disclosed in an embodiment.

[0023] Figure 6 The present invention is a schematic structural diagram of a water circuit control module in a low-pressure air control system of a bottle blowing machine disclosed in an embodiment.

[0024] Figure 7 The present invention is a schematic structural diagram of a brake module in a low-pressure air control system of a bottle blowing machine disclosed in an embodiment.

[0025] Figure 8 The present invention is a schematic structural diagram of a heating machine distribution gas path module in a low-pressure gas control system of a bottle blowing machine disclosed in an embodiment.

[0026] The accompanying drawings are marked as follows: 1. pressure reducing valve group; 2. cylinder module for kicking blanks, kicking bottles and dropping bottles; 3. dust removal module for bottle blanks; 4. water circuit control module; 5. brake module; 6. air distribution module for heater; 101. recycling gas transmission pipe; 102. gas distribution block; 103. hose; 104. first joint; 105. pressure reducing valve; 106. pressure reducing valve connecting plate; 201. second joint; 202. first solenoid valve; 203. kicking cylinder; 204. kicking plate; 205. kicking Bottle cylinder; 206, bottle kicking plate; 207, bottle dropping cylinder; 208, bottle dropping plate; 301, air inlet; 302, air distributor; 401, second solenoid valve; 402, pneumatic butterfly valve; 501, third solenoid valve; 502, brake; 601, third joint; 602, fourth solenoid valve; 603, air cooling control unit; 604, solenoid valve group; 605, lower blank blowing unit; 606, blank pressing cylinder; 607, lifting cylinder; 608, blank stopping cylinder. DETAILED DESCRIPTION

[0027] 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; it is obvious that the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", and "connected" should be understood in a broad sense; for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, or an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] See also Figure 1-2 A low-pressure gas control system for a bottle blowing machine includes a pressure reducing valve group 1, a preform kicking and bottle dropping cylinder module 2, a preform dust removal module 3, a water circuit control module 4, a brake module 5 and a heating machine distribution gas circuit module 6;

[0030] The air inlet end of the pressure reducing valve group 1 is connected to the recovery gas transmission pipe 101. The low-pressure gas after bottle blowing is completed is collected through the recovery gas transmission pipe 101, which is convenient for subsequent use to control the position of each cylinder of the bottle blowing machine, reasonably and fully utilize it, save energy and reduce production costs.

[0031] The outlet end of the pressure reducing valve group 1 is connected with the kicking and bottle dropping cylinder module 2, the bottle preform dust removal module 3, the water circuit control module 4, the brake module 5, and the heater distribution air circuit module 6 through the hose 103. The kicking and bottle dropping cylinder module 2 includes the kicking cylinder 203, the kicking bottle cylinder 205, and the dropping bottle cylinder 207; the heater distribution air circuit module 6 includes the air cooling control unit 603, the lower billet blowing unit 605, the billet pressing cylinder 606, the lifting cylinder 607, and the billet stopping cylinder 608; the recycled gas enters the pressure reducing valve group 1, and then is distributed to various parts with a hose connection to ensure the operation of the entire low-pressure gas control system.

[0032] like Figure 3 As shown, the pressure reducing valve assembly 1 includes a gas distribution block 102, a pressure reducing valve 105, and a pressure reducing valve connecting plate 106;

[0033] The inlet end of the gas distribution block 102 is connected to the recovery gas transmission pipe 101;

[0034] The outlet end of the gas distributor 102 is connected to the first connector 104 via a hose 103.

[0035] The first connector 104 is connected to the pressure reducing valve 105, and there are five pressure reducing valves 105, which are installed on the pressure reducing valve connecting plate 106; the recycled gas from the recycled gas transmission pipe 101 enters the gas distribution block 102 and enters the control system. The gas distribution block 103 inputs the gas through the hose 103, the first connector 104 is connected to the gas, the gas enters the pressure reducing valve 105, and the five pressure reducing valves are connected together through the pressure reducing valve connecting plate 106. The gas used is the gas after the bottle is recycled, which saves energy and reduces production costs.

[0036] like Figure 4 As shown, the blank-kicking, bottle-kicking and bottle-dropping cylinder module 2 includes a second joint 201, one end of which is connected to a pressure reducing valve 105 in the pressure reducing valve group 1, and the other end of the second joint 201 is connected to the blank-kicking cylinder 203, the bottle-kicking cylinder 205 and the bottle-dropping cylinder 207 through a hose 103;

[0037] A first solenoid valve 202 is installed on the hose 103 connecting the second joint 201 and the kicking cylinder 203, the hose 103 connecting the second joint 201 and the bottle kicking cylinder 205, and the hose 103 connecting the second joint 201 and the bottle dropping cylinder 207;

[0038] The second joint 201, the first solenoid valve 202, the kicking cylinder 203 and the kicking plate 204 are connected; the bottle kicking cylinder 205 is connected to the bottle kicking plate 206, and the bottle dropping cylinder 207 is connected to the bottle dropping plate 208;

[0039] The gas comes out of the pressure reducing valve 105 and enters the second joint 201, and is then distributed to three cylinders by the hose 103. The first place is to the first solenoid valve 202, and is connected to the kicking cylinder 203 in one in and one out. The kicking cylinder 203 receives the signal to drive the kicking plate 204 to move and kick out the bottle. The second place is to another first solenoid valve 202, and is connected to the bottle kicking cylinder 205 in one in and one out. The bottle kicking cylinder 205 receives the signal to drive the bottle kicking plate 206 to move and kick out the blown bottle. The third place is to the remaining first solenoid valves 202, and is connected to the bottle dropping cylinder 207 in one in and one out. The bottle dropping cylinder 207 receives the signal to drive the bottle dropping plate 208 to move, and the bottle dropping plate 208 moves its position, so that the problematic bottle can be dropped from the assembly line to the specified position. This part can operate independently, and can automatically cut off the gas when an alarm occurs. It is easy to maintain, and components can be replaced in time, saving time and cost.

[0040] like Figure 5 As shown, the preform dust removal module 3 includes an air inlet 301 and an air distributor 302. The air inlet 301 is connected to the second pressure reducing valve 105 in the pressure reducing valve group 1 through a hose 103. The air inlet 301 is installed on the air distributor 302. The recovered gas is decompressed to a specified pressure and enters the air inlet 301 through the hose 103, and then enters the air distributor 302 for air jet dust removal. This position is for dust removal of the incoming preforms.

[0041] like Figure 6 As shown, the water circuit control module 4 includes a second solenoid valve 401 and a pneumatic butterfly valve 402. One end of the second solenoid valve 401 is connected to the third pressure reducing valve 105 in the pressure reducing valve group 1, and the other end of the solenoid valve 401 is connected to the pneumatic butterfly valve 402 through a hose 103. The pneumatic butterfly valve 402 is installed on the water pipe of the water circuit; the hose 103 leads to the designated position and enters the second solenoid valve 401. The pneumatic butterfly valve 402 is switched on and off by the second solenoid valve 401. When the machine is shut down, the cooling water can return from the butterfly valve without entering the equipment.

[0042] like Figure 7 As shown, the brake module 5 includes a third solenoid valve 501 and a brake 502. One end of the third solenoid valve 501 is connected to the fourth pressure reducing valve 105 in the pressure reducing valve group 1 through a hose 103, and the other end of the third solenoid valve 501 is connected to the brake 502. The brake 502 is provided with three groups. The gas comes out of the pressure reducing valve 105 and enters the third solenoid valve 501, and then enters the brake 502 in three ways to stop the entire device in an emergency. The alarm and manual control can be performed by opening and closing the brake 502 through the third solenoid valve 501 to quickly stop the device and reduce the failure rate.

[0043] like Figure 8As shown, the heating machine distribution gas path module 6 includes a third joint 601, one end of the third joint 601 is connected to the fifth pressure reducing valve 105 in the pressure reducing valve group 1 through a hose 103, and the other end of the third joint 601 is respectively connected to the fourth solenoid valve 602 and the solenoid valve group 604, and the fourth solenoid valve 602 is connected to the air cooling control unit 603; the solenoid valve group 604 is respectively connected to the lower blank blowing unit 605, the blank pressing cylinder 606, the lifting cylinder 607, and the blank stopping cylinder 608;

[0044] The incoming gas is still the recycled gas from the pressure reducing valve 105. It first enters the third joint 601 and is divided into two gas paths. One path enters the fourth solenoid valve 602 and is controlled by the air cooling control unit 603. This position is a long aluminum alloy tube, which continuously blows air to cool the heated bottle mouth and take away the heat. The other path enters the solenoid valve group 604 and then enters the 4 control gas paths respectively. The first path is to the lower blank blowing unit 605, which blows air to the bottle blank through the air nozzle to make the bottle blank fall more smoothly and quickly. The second path is to the blank pressing cylinder 606, which contracts to insert the heating head into the bottle blank; the third path is the lifting cylinder 607, which can make a gap in the rotating star wheel to drop unqualified bottle blanks, ensuring the normal operation of the equipment and improving the qualified rate. The fourth path is to the blank stopping cylinder 608, which stops the bottle blank from falling by extending the cylinder.

[0045] The utility model recovers and surplus gas from the bottle blowing machine and enters the pressure reducing valve group, and then distributes it to 5 gas circuits. The first circuit is the cylinder for kicking the blank, kicking the bottle and dropping the bottle, which enters the kicking cylinder, the kicking bottle cylinder and the dropping bottle cylinder respectively through the solenoid valve; the second circuit enters the bottle blank dust removal; the third circuit enters the water circuit control; the fourth circuit enters the brake; the fifth circuit is the heating machine distribution gas circuit, and then enters the lower blank blowing, the blank pressing cylinder, the lifting cylinder, the blank stopping cylinder and the air cooling control respectively. Each gas circuit is connected with a hose to complete the entire low-pressure gas control system. Each solenoid valve is controlled by the host, and problems can be discovered in time and monitored at all times.

[0046] The gas recovered after bottle blowing in the utility model can be used to control the various cylinder control positions of the bottle blowing machine, saving energy and reducing production costs. The recovered gas enters the pressure reducing valve through the air pipe, and the corresponding air pressure is controlled by the panel, and enters the positions such as the preform kicking cylinder, preform dust removal, and brake, respectively, to perform pneumatic control on the equipment and form a complete control system. Furthermore, all control positions operate independently, and the air pressure is summarized on the main unit display screen for timely monitoring, and the value can also be adjusted.

[0047] The utility model adopts hoses to connect and circulate the pipelines at various places, which has a simple structure and is easy to disassemble; the various distribution systems of the utility model have a simple structure and can operate independently, and can automatically cut off the gas when an alarm is triggered, which is convenient for maintenance and timely replacement of components, saving time and cost; the gas used in the utility model is the gas recycled after bottle blowing, which saves energy and reduces production costs. The entire low-pressure gas control system of the utility model is controlled by the host through the solenoid valve, which can detect problems in time and monitor at all times.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A low-pressure air control system for a bottle blowing machine, characterized in that: The invention comprises a pressure reducing valve group (1), a cylinder module for kicking blanks, bottles and bottles (2), a preform dust removal module (3), a water circuit control module (4), a brake module (5) and a heater air distribution module (6); the air inlet end of the pressure reducing valve group (1) is connected to a recovery air transmission pipe (101); the outlet end of the pressure reducing valve group (1) is connected to the cylinder module for kicking blanks, bottles and bottles (2), the preform dust removal module (3), the water circuit control module (4), the brake module (5) and the heater air distribution module (6) through a hose (103); the cylinder module for kicking blanks, bottles and bottles (2) comprises a kicking blank cylinder (203), a kicking bottle cylinder (205) and a bottle dropping cylinder (207); the heater air distribution module (6) comprises an air cooling control unit (603), a lower blank blowing unit (605), a blank pressing cylinder (606), a lifting cylinder (607) and a blank stopping cylinder (608).

2. A low-pressure air control system for a bottle blowing machine according to claim 1, characterized in that: The pressure reducing valve group (1) comprises a gas distribution block (102), a pressure reducing valve (105), and a pressure reducing valve connecting plate (106); the inlet end of the gas distribution block (102) is connected to the recovery gas transmission pipe (101); the outlet end of the gas distribution block (102) is connected to the first joint (104) through a hose (103), and the first joint (104) is connected to the pressure reducing valve (105). Five pressure reducing valves (105) are provided, and the five pressure reducing valves (105) are installed on the pressure reducing valve connecting plate (106).

3. A low-pressure air control system for a bottle blowing machine according to claim 2, characterized in that: The described blank-kicking, bottle-kicking and bottle-dropping cylinder module (2) comprises a second joint (201), one end of which is connected to a pressure reducing valve (105) in the pressure reducing valve group (1), and the other end of which is connected to the blank-kicking cylinder (203), the bottle-kicking cylinder (205) and the bottle-dropping cylinder (207) respectively through a hose (103); A first solenoid valve (202) is installed on the hose (103) connecting the second joint (201) with the billet-kicking cylinder (203), the hose (103) connecting the second joint (201) with the bottle-kicking cylinder (205), and the hose (103) connecting the second joint (201) with the bottle-dropping cylinder (207); The second joint (201), the first solenoid valve (202), the blank-kicking cylinder (203) and the blank-kicking plate (204) are connected; the bottle-kicking cylinder (205) and the bottle-kicking plate (206) are connected; and the bottle-dropping cylinder (207) and the bottle-dropping plate (208) are connected.

4. A low-pressure air control system for a bottle blowing machine according to claim 3, characterized in that: The preform dust removal module (3) comprises an air inlet (301) and an air distributor (302); the air inlet (301) is connected to the second pressure reducing valve (105) in the pressure reducing valve group (1) through a hose (103); and the air inlet (301) is installed on the air distributor (302).

5. A low-pressure air control system for a bottle blowing machine according to claim 4, characterized in that: The water circuit control module (4) comprises a second solenoid valve (401) and a pneumatic butterfly valve (402); one end of the second solenoid valve (401) is connected to the third pressure reducing valve (105) in the pressure reducing valve group (1); the other end of the second solenoid valve (401) is connected to the pneumatic butterfly valve (402) via a hose (103); and the pneumatic butterfly valve (402) is installed on the water pipe of the water circuit.

6. A low-pressure air control system for a bottle blowing machine according to claim 5, characterized in that: The brake module (5) comprises a third solenoid valve (501) and a brake (502), one end of the third solenoid valve (501) is connected to the fourth pressure reducing valve (105) in the pressure reducing valve group (1) through a hose (103), and the other end of the third solenoid valve (501) is connected to the brake (502).

7. A low-pressure air control system for a bottle blowing machine according to claim 6, characterized in that: The brakes (502) are provided in three groups.

8. A low-pressure air control system for a bottle blowing machine according to claim 6, characterized in that: The heater air distribution module (6) includes a third connector (601), one end of the third connector (601) is connected to the fifth pressure reducing valve (105) in the pressure reducing valve group (1) through a hose (103), and the other end of the third connector (601) is respectively connected to the fourth solenoid valve (602) and the solenoid valve group (604), and the fourth solenoid valve (602) is connected to the air cooling control unit (603); the solenoid valve group (604) is respectively connected to the lower blank blowing unit (605), the blank pressing cylinder (606), the lifting cylinder (607), and the blank stopping cylinder (608).

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