Glass longitudinal breaking device and control method thereof

Abstract

The invention provides a glass longitudinal breaking device. The glass longitudinal breaking device comprises a base; a longitudinal breaking assembly; the lifting assembly comprises a first long crank, a second long crank, a third long crank and a short crank which are sequentially hinged to the base in the Y direction. The invention further provides a control method of the glass longitudinal breaking device. The longitudinal breaking device has the beneficial effects that the adaptive glass plate length range is wide, the number of required longitudinal breaking wheel sets is small, and the equipment cost is reduced; the proper longitudinal breaking wheel set can be automatically selected and started according to the length of the glass plate, internal self-cooperation of the system is controlled, the flexibility is high, and the synchronism is good. Manual operation is not needed in the whole longitudinal breaking process, and the working intensity of operators is relieved.

Description

Technical Field

[0001] The invention belongs to the technical field of glass processing, and in particular relates to a glass longitudinal breaking device and a control method thereof. Background Art

[0002] Longitudinal breaking refers to breaking and separating the longitudinally cut glass sheet along the longitudinal cut seam. The longitudinal breaking device is generally arranged in the middle and rear section of the flat glass production line, including a lifting mechanism and a longitudinal breaking wheel group. The cylinder in the lifting mechanism pushes the crank to make the longitudinal breaking wheel group rise and hit the passing glass plate, so that the glass plate is broken and separated. Different glass plate lengths have different requirements for the length of the longitudinal breaking wheel group. For glass plates with shorter plate lengths, short and agile longitudinal breaking wheel groups are required. Too long longitudinal breaking wheel groups will take up more time and space, which may affect the subsequent processing of glass plates; on the contrary, for glass plates with longer plate lengths, longer longitudinal breaking wheel groups are required, otherwise it is easy to produce breaking defects such as edge rubbing and multiple missing corners. In order to adapt to the ever-changing market, the existing flat glass production line usually requires the glass to be longitudinally broken to have a wider plate length range, generally from 914mm to 4000mm, or even wider. In this way, the traditional longitudinal breaking device cannot meet the production needs. At present, most of the methods used are to set up several longitudinal breaking devices with longitudinal breaking wheel groups of different lengths, but this undoubtedly increases the investment cost. Some manufacturers have also tried to use two longitudinal breaking devices together, but because the actuator of the lifting mechanism is a cylinder, the movement synchronization of the two longitudinal breaking devices is very poor, so the longitudinal breaking effect is not good. Summary of the invention

[0003] In view of the above-mentioned defects, an object of the present invention is to provide a glass longitudinal breaking device which can adapt to glasses with different plate lengths.

[0004] The present invention provides a glass longitudinal bending device, comprising: a base; a longitudinal bending assembly, comprising a first longitudinal bending wheel group and a second longitudinal bending wheel group, wherein the top of the first longitudinal bending wheel group is provided with a plurality of first top wheels evenly spaced along the Y direction, and the top of the second longitudinal bending wheel group is provided with a plurality of second top wheels evenly spaced along the Y direction; a lifting assembly, comprising a first long crank, a second long crank, a third long crank and a short crank, which are hinged on the base in sequence along the Y direction, wherein the first long crank, the second long crank and the third long crank have the same structure, comprising a first section and a second section connected in an L shape, wherein the connection between the first section and the second section is hinged to the base; the short crank comprises a third section and a fourth section connected in an L shape, wherein the connection between the third section and the fourth section is hinged to the base, and the length of the third section is the same as that of the first section. The length of the fourth section is smaller than that of the second section; the first section end of the first long crank is hinged to the first longitudinal wheel group, and the second section end is hinged to the first piston rod of the first cylinder, and the first cylinder is hinged on the base; the first section end of the second long crank is hinged to the first longitudinal wheel group, and the second section end is hinged to the end of the connecting rod fixed on the second cylinder, and a first connecting rod extending along the Y direction is hinged between the second section of the first long crank and the second section of the second long crank; the first section end of the third long crank is hinged to the second longitudinal wheel group, and the second section end is hinged to the second piston rod of the second cylinder; the third section end of the short crank is hinged to the second longitudinal wheel group, and a second connecting rod extending along the Y direction is hinged between the fourth section end and the second section of the third long crank.

[0005] Preferably, the base is also provided with a plurality of supporting members for supporting the first longitudinal folding wheel group or the second longitudinal folding wheel group.

[0006] Preferably, the cylinder diameter of the first cylinder is larger than the cylinder diameter of the second cylinder.

[0007] Preferably, the length of the first longitudinal breaking wheel set is smaller than the length of the second longitudinal breaking wheel set.

[0008] Preferably, the rotation axes of the first top wheel and the second top wheel are parallel to the X direction.

[0009] Preferably, a plurality of roller assemblies are also mounted on the base, and the roller assemblies are used to transport the glass plate along the Y direction, and the longitudinal bending assembly is arranged between two adjacent roller assemblies.

[0010] Preferably, it also includes a control system, which includes a compressed air source, a two-position three-way solenoid valve, a two-position five-way solenoid valve and a controller, the two-position five-way solenoid valve includes a first air inlet, a first air outlet and a second air outlet, the first air inlet is connected to the compressed air source, and the first air outlet and the second air outlet are respectively connected to the first cylinder; the two-position three-way solenoid valve is normally open, including a second air inlet and an air outlet, the second air inlet is connected to the compressed air source, and the air outlet is connected to the second cylinder through a quick exhaust valve; the controller is used to control the on and off states of the two-position three-way solenoid valve and the two-position five-way solenoid valve.

[0011] Preferably, the compressed air source is connected to the first air inlet and the second air inlet through an air source processing component.

[0012] Preferably, the first air outlet and the second air outlet are each connected to the first cylinder via a one-way throttle valve.

[0013] The present invention also provides a control method for the aforementioned glass longitudinal breaking device, comprising the following steps:

[0014] S1, when the glass sheet to be longitudinally broken reaches a certain position of the base, the control system determines whether the current longitudinal breaking device is applicable according to the length of the glass sheet, and if applicable, jumps to step S2; if not applicable, the longitudinal breaking device does not work;

[0015] S2, the control system selects to activate the first longitudinal bending wheel group alone or the first longitudinal bending wheel group and the second longitudinal bending wheel group at the same time according to the length of the glass plate. If the first longitudinal bending wheel group alone is selected to be activated, the control system jumps to step S3; if the first longitudinal bending wheel group and the second longitudinal bending wheel group are selected to be activated at the same time, the control system jumps to step S4;

[0016] S3, after the first delay time period, the controller controls the two-position three-way solenoid valve to be energized, the second cylinder is exhausted quickly, and the second piston rod is in a free state in the second cylinder; after the second delay time period, the glass sheet to be longitudinally broken reaches directly above the first longitudinal breaking wheel group, the controller controls the two-position five-way solenoid valve to be energized, the first piston rod extends, and the first longitudinal breaking wheel group rises; after the third delay time period, the controller controls the two-position three-way solenoid valve and the two-position five-way solenoid valve to be de-energized at the same time, the first piston rod and the second piston rod retract at the same time, and the first longitudinal breaking wheel group descends; the value of the second time period is greater than the value of the first time period;

[0017] S4. After the fourth delay time period, the glass plate to be longitudinally bent reaches directly above the first longitudinal bending wheel group and the second longitudinal bending wheel group, and the controller controls the two-position five-way solenoid valve to be energized, the first piston rod extends, and the first longitudinal bending wheel group and the second longitudinal bending wheel group rise at the same time; after the fifth delay time period, the controller controls the two-position five-way solenoid valve to be de-energized, the first piston rod retracts, and the first longitudinal bending wheel group and the second longitudinal bending wheel group descend at the same time.

[0018] The invention is beneficial in that it can adapt to a wide range of glass plate lengths, requires a small number of longitudinal breaking wheel sets, and reduces equipment costs; it can automatically select and enable a suitable longitudinal breaking wheel set according to the length of the glass plate, and the control system is self-coordinated, highly flexible, and well synchronized. The entire longitudinal breaking process does not require manual operation, which reduces the workload of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a top view of the glass longitudinal breaking device of the present invention;

[0020] Figure 2 is a side view of the glass longitudinal breaking device of the present invention when the first longitudinal breaking wheel group and the second longitudinal breaking wheel group are both in the initial position;

[0021] Figure 3 It is a structural schematic diagram of a control system of a glass longitudinal breaking device of the present invention;

[0022] Figure 4 is a side view of the glass longitudinal breaking device of the present invention when the first longitudinal breaking wheel group is raised;

[0023] Figure 5 is a side view of the glass longitudinal breaking device of the present invention when the first longitudinal breaking wheel group and the second longitudinal breaking wheel group are both raised;

[0024] Figure 6 It is a control logic diagram of the glass longitudinal breaking device of the present invention.

[0025] Component number description:

[0026] 1 Base

[0027] 11 Support

[0028] 2. Vertically break the components

[0029] 3. First longitudinal wheel set

[0030] 31. First Crown Chakra

[0031] 4. Second longitudinal wheel set

[0032] 41. Second crown chakra

[0033] 51 First Cylinder

[0034] 511 First piston rod

[0035] 52 Second Cylinder

[0036] 521 Second piston rod

[0037] 61 First Long Crank

[0038] 62 Second Longest Crank

[0039] 63 Third Longest Crank

[0040] 64 Paragraph 1

[0041] 65 Paragraph 2

[0042] 7 short crank

[0043] 71 Paragraph 3

[0044] 72 Paragraph 4

[0045] 81 First connecting rod

[0046] 82 Second connecting rod

[0047] 9 Connecting rod

[0048] 100 Air source processing components

[0049] 200 Two-position three-way solenoid valve

[0050] 300 Quick Exhaust Valve

[0051] 400 Two-position five-way solenoid valve

[0052] 500 One-way throttle valve

[0053] 600 Muffler DETAILED DESCRIPTION

[0054] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0055] In the description of the present invention, it should be noted that the terms "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "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; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0058] Figure 1 FIG. 1 is a top view of the glass longitudinal breaking device of the present invention. In the following description, Figure 1 The attached figure in the figure is used as a reference for the direction. Figure 1 In the diagram, the Y direction is defined as the upward direction along the view paper, the X direction is defined as the right direction along the view paper, and the Z direction is defined as the direction perpendicular to the paper.

[0059] like Figure 1 and Figure 2 As shown, the present invention provides a glass longitudinal bending device, which includes a base 1, a longitudinal bending assembly 2 and a lifting assembly. A plurality of roller assemblies (not shown) spaced apart along the X direction are installed on the base 1, and each roller assembly is used to transport the glass sheet along the Y direction. The longitudinal bending assembly 2 is arranged between two adjacent roller assemblies, and includes a first longitudinal bending wheel group 3 and a second longitudinal bending wheel group 4. The top of the first longitudinal bending wheel group 3 is provided with a plurality of first top wheels 31 spaced apart along the Y direction, and the top of the second longitudinal bending wheel group 4 is provided with a plurality of second top wheels 41 spaced apart along the Y direction. The first top wheel 31 and the second top wheel 41 are located on the same straight line extending along the Y direction, and the rotating axes of the first top wheel 31 and the second top wheel 41 are parallel to the X direction. The longitudinal bending assembly 2 can move up and down along the Z direction under the drive of the lifting assembly. When the longitudinal breaking device is not working, the longitudinal breaking assembly 2 is located below the plane of the roller assembly used to transport the glass plate; when the longitudinal breaking device is working, when the glass plate to be longitudinally broken is transported above two adjacent roller assemblies, the lifting assembly drives the longitudinal breaking assembly 2 to rise, and the top wheel in the longitudinal breaking assembly 2 hits the glass plate, so that the glass plate is broken into two pieces, and then the two roller assemblies transport the two broken glass plates respectively. Preferably, the length of the first longitudinal breaking wheel group 3 is less than the length of the second longitudinal breaking wheel group 4. Such a setting can make the longitudinal breaking device adapt to a larger range of glass plate lengths, and a small number of longitudinal breaking wheel groups can meet production needs, thereby reducing equipment costs.

[0060] like Figure 2As shown, the lifting assembly includes a first long crank 61, a second long crank 62, a third long crank 63 and a short crank 7 which are hinged to the base 1 in sequence along the Y direction. The first long crank 61, the second long crank 62 and the third long crank 63 have the same structure, and all include a first section 64 and a second section 65 connected in an L shape, and the connection between the first section 64 and the second section 65 is hinged to the base 1. Specifically, the length of the first section 64 is less than the length of the second section 65. The short crank 7 includes a third section 71 and a fourth section 72 connected in an L shape, and the connection between the third section 71 and the fourth section 72 is hinged to the base 1, the length of the third section 71 is the same as the length of the first section 64, and the length of the fourth section 72 is less than the length of the second section 65.

[0061] The first end of the first long crank 61 is hinged to the bottom of the first longitudinal wheel group 3, and the second end is hinged to the first piston rod 511 of the first cylinder 51, and the first cylinder 51 is hinged to the base 1; the first end of the second long crank 62 is hinged to the bottom of the first longitudinal wheel group 3, and the second end is hinged to the end of the connecting rod 9 fixed to the second cylinder 52, and the first connecting rod 81 extending along the Y direction is hinged between the second section of the first long crank 61 and the second section of the second long crank 62. A parallelogram structure is formed between the first longitudinal wheel group 3, the first long crank 61, the second long crank 62 and the first connecting rod 81, thereby ensuring the smooth movement of the first longitudinal wheel group 3.

[0062] The first end of the third long crank 63 is hinged to the bottom of the second longitudinally-bending wheel set 4, and the second end is hinged to the second piston rod 521 of the second cylinder 52; the third end 71 of the short crank 7 is hinged to the bottom of the second longitudinally-bending wheel set 4, and a second connecting rod 82 extending along the Y direction is hinged between the fourth end 72 and the second end of the third long crank 63. Another parallelogram structure is formed between the second longitudinally-bending wheel set 4, the third long crank 63, the short crank 7, and the second connecting rod 82, thereby ensuring the smooth movement of the second longitudinally-bending wheel set 4.

[0063] In a specific embodiment of the present invention, the base 1 is further provided with a plurality of support members 11 for supporting the first longitudinal breaking wheel set 3 or the second longitudinal breaking wheel set 4, which can ensure that the positions of the two are stable and will not deviate when the longitudinal breaking device is not working. The first cylinder 51 and the second cylinder 52 are both double-acting cylinders, wherein the cylinder diameter of the first cylinder 51 is larger than the cylinder diameter of the second cylinder 52. Such a setting can ensure that the first cylinder 51 as the main driving source has sufficient thrust to drive the lifting assembly to drive the longitudinal breaking assembly 2 to rise and fall.

[0064] like Figure 3 As shown, the longitudinal breaking device of the present invention further includes a control system, which includes a compressed air source, a two-position three-way solenoid valve 200, a two-position five-way solenoid valve 400 and a controller.

[0065] The two-position five-way solenoid valve 400 includes a first air inlet, a first air outlet, a first exhaust hole, a second air outlet, and a second exhaust hole. The first air inlet is connected to a compressed air source. The first air outlet and the second air outlet are respectively connected to two air connection holes on the first cylinder 51 through a one-way throttle valve 500. The first exhaust hole and the second exhaust hole are each connected to a muffler 600. When the two-position five-way solenoid valve 400 is powered off, the first piston rod 511 contracts; when the two-position five-way solenoid valve 400 is powered on, air is reversely inhaled into the first cylinder 51, and the first piston rod 511 extends.

[0066] The two-position three-way solenoid valve 200 is a normally open type, including a second air inlet, an air outlet and an exhaust hole. The second air inlet is connected to the compressed air source, and the air outlet is connected to an air connection hole of the second cylinder 52 through the quick exhaust valve 300. The other air connection hole of the second cylinder 52 and the exhaust hole of the two-position three-way solenoid valve 200 are each connected to a muffler 600. When the two-position three-way solenoid valve 200 is powered off, the compressed air source continues to input compressed air into the quick exhaust valve 300 and the second cylinder 52, and the second piston rod 521 contracts; when the two-position three-way solenoid valve 200 is powered on, there is no compressed air input, the valve core of the quick exhaust valve 300 moves, the gas in the second cylinder 52 is quickly discharged through the quick exhaust valve 300, and the second piston rod 521 is in a free state in the second cylinder 52.

[0067] Furthermore, the compressed air source is connected to the first air inlet and the second air inlet through the air source processing component 100, and the air source processing component 100 specifically includes one or more of an air filter, a pressure reducing valve and an oil mist collector.

[0068] The controller is used to control the on / off state of the two-position three-way solenoid valve 200 and the two-position five-way solenoid valve 400, and is specifically a PLC or a single-chip microcomputer. Preferably, the control system also includes a photoelectric switch arranged on the base 1, the photoelectric switch is used to detect whether the glass plate reaches a specified position, and the controller is used to receive a detection signal of the photoelectric switch.

[0069] like Figure 1 , Figure 3 and Figure 6 As shown, the present invention also provides a control method for the aforementioned glass longitudinal bending device with a control system, and the control method comprises the following steps:

[0070] S1, when the glass plate to be longitudinally broken reaches a certain position of the base 1, the photoelectric switch detects that the glass plate has reached the specified position, and the control system determines whether the length of the glass plate satisfies the condition that it is less than or equal to the sum of the length L2 of the longitudinal breaking assembly 2 and 1000 mm. If so, the current longitudinal breaking device is applicable, and the process jumps to step S2; if not, the current longitudinal breaking device is not applicable, and the longitudinal breaking device does not work;

[0071] S2, the control system determines whether the length of the glass plate satisfies the condition that it is less than or equal to the sum of the length L1 of the first longitudinal bending wheel set 3 and 500 mm. If so, the control system selects to activate the first longitudinal bending wheel set 3 alone and jumps to step S3; if not, the control system selects to activate the first longitudinal bending wheel set 3 and the second longitudinal bending wheel set 4 at the same time and jumps to step S4;

[0072] S3, after the first delay period, the controller controls the two-position three-way solenoid valve 200 to be energized, the second cylinder 52 is exhausted quickly, and the second piston rod 521 is in a free state in the second cylinder 52; after the second delay period, the glass sheet to be longitudinally broken reaches directly above the first longitudinal breaking wheel set 3, and the controller controls the two-position five-way solenoid valve 400 to be energized, such as Figure 4 As shown, the first piston rod 511 extends out, and drives the first longitudinal bending wheel set 3 to rise through the first long crank 61, the second long crank 62 and the first connecting rod 81. As the second long crank 62 rotates, the cylinder body of the second cylinder 52 moves rightward under the drive of the connecting rod 9, and at this time the second piston rod 521 slides out of the second cylinder 52 and is not subjected to force, so the second longitudinal bending wheel set 4 remains stationary. After the third delay time period, the controller controls the two-position three-way solenoid valve 200 and the two-position five-way solenoid valve 400 to cut off the power at the same time, the first piston rod 511 and the second piston rod 521 retract at the same time, the first longitudinal bending wheel set 3 descends, and the longitudinal bending assembly 2 returns to the initial position, waiting for the arrival of the next glass plate to be longitudinally bent; the value of the above-mentioned second time period is greater than the value of the first time period, which can avoid the first longitudinal bending wheel set 3 starting to rise when the gas in the second cylinder 52 is not completely discharged, affecting the longitudinal bending effect.

[0073] S4, after the fourth delay period, the glass sheet to be longitudinally broken reaches the top of the first longitudinal breaking wheel set 3 and the second longitudinal breaking wheel set 4, and the controller controls the two-position five-way solenoid valve 400 to be energized. Figure 5 As shown, the first piston rod 511 extends, and drives the first longitudinal bending wheel set 3 to rise through the first long crank 61, the second long crank 62 and the first connecting rod 81; at the same time, with the rotation of the second long crank 62, the cylinder body of the second cylinder 52 moves rightward under the drive of the connecting rod 9. Since the second piston rod 521 is in a contracted state, it moves rightward with the second cylinder 52 and drives the third long crank 63 to rotate, and then drives the second longitudinal bending wheel set 4 to rise simultaneously with the first longitudinal bending wheel set 3 through the short crank 7 and the second connecting rod 82; after the fifth delay time period, the controller controls the two-position five-way solenoid valve 400 to cut off the power, the first piston rod 511 retracts, the first longitudinal bending wheel set 3 and the second longitudinal bending wheel set 4 descend simultaneously, and the longitudinal bending assembly 2 returns to the initial position, waiting for the arrival of the next glass plate to be longitudinally broken. In step S4, the two-position three-way solenoid valve 200 is always powered off, and the second piston rod 521 remains in a retracted state.

[0074] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A glass longitudinal breaking device, characterized in that: include: Base; The longitudinal breaking assembly comprises a first longitudinal breaking wheel group and a second longitudinal breaking wheel group, wherein the top of the first longitudinal breaking wheel group is provided with a plurality of first top wheels evenly spaced along the Y direction, and the top of the second longitudinal breaking wheel group is provided with a plurality of second top wheels evenly spaced along the Y direction; A lifting assembly, comprising a first long crank, a second long crank, a third long crank and a short crank which are hinged on the base in sequence along the Y direction, wherein the first long crank, the second long crank and the third long crank have the same structure and comprise a first section and a second section which are connected in an L shape, wherein the connection between the first section and the second section is hinged to the base; the short crank comprises a third section and a fourth section which are connected in an L shape, wherein the connection between the third section and the fourth section is hinged to the base, wherein the length of the third section is the same as that of the first section, and the length of the fourth section is less than that of the second section; The first end of the first long crank is hinged to the first longitudinal wheel assembly, and the second end is hinged to the first piston rod of the first cylinder, and the first cylinder is hinged to the base; the first end of the second long crank is hinged to the first longitudinal wheel assembly, and the second end is hinged to the end of the connecting rod fixed to the second cylinder, and a first connecting rod extending along the Y direction is hinged between the second section of the first long crank and the second section of the second long crank; The first end section of the third long crank is hinged to the second longitudinal wheel group, and the second end section is hinged to the second piston rod of the second cylinder; the third end section of the short crank is hinged to the second longitudinal wheel group, and a second connecting rod extending along the Y direction is hinged between the fourth end section and the second section of the third long crank.

2. The glass longitudinal breaking device according to claim 1, characterized in that: The base is also provided with a plurality of supporting members for supporting the first longitudinal folding wheel group or the second longitudinal folding wheel group.

3. The glass longitudinal breaking device according to claim 1, characterized in that: The cylinder diameter of the first cylinder is larger than the cylinder diameter of the second cylinder.

4. The glass longitudinal breaking device according to claim 1, characterized in that: The length of the first longitudinal breaking wheel set is smaller than the length of the second longitudinal breaking wheel set.

5. The glass longitudinal breaking device according to claim 1, characterized in that: The rotation axes of the first top wheel and the second top wheel are both parallel to the X direction.

6. The glass longitudinal breaking device according to claim 1, characterized in that: A plurality of roller assemblies are also mounted on the base, and the roller assemblies are used to transport the glass plate along the Y direction. The longitudinal breaking assembly is arranged between two adjacent roller assemblies.

7. The glass longitudinal breaking device according to claim 1, characterized in that: It also includes a control system, which includes a compressed air source, a two-position three-way solenoid valve, a two-position five-way solenoid valve and a controller, the two-position five-way solenoid valve includes a first air inlet, a first air outlet and a second air outlet, the first air inlet is connected to the compressed air source, and the first air outlet and the second air outlet are respectively connected to the first cylinder; the two-position three-way solenoid valve is normally open, including a second air inlet and an air outlet, the second air inlet is connected to the compressed air source, and the air outlet is connected to the second cylinder through a quick exhaust valve; the controller is used to control the on and off states of the two-position three-way solenoid valve and the two-position five-way solenoid valve.

8. The glass longitudinal breaking device according to claim 7, characterized in that: The compressed air source is connected to the first air inlet and the second air inlet through an air source processing component.

9. The glass longitudinal breaking device according to claim 7, characterized in that: The first air outlet and the second air outlet are respectively connected to the first cylinder through a one-way throttle valve.

10. A control method for a glass longitudinal breaking device as claimed in claim 7, characterized in that: The following steps are involved: S1, when the glass sheet to be longitudinally broken reaches a certain position of the base, the control system determines whether the current longitudinal breaking device is applicable according to the length of the glass sheet, and if applicable, jumps to step S2; if not applicable, the longitudinal breaking device does not work; S2, the control system selects to activate the first longitudinal bending wheel group alone or the first longitudinal bending wheel group and the second longitudinal bending wheel group at the same time according to the length of the glass plate. If the first longitudinal bending wheel group alone is selected to be activated, the control system jumps to step S3; if the first longitudinal bending wheel group and the second longitudinal bending wheel group are selected to be activated at the same time, the control system jumps to step S4; S3, after the first delay time period, the controller controls the two-position three-way solenoid valve to be energized, the second cylinder is exhausted quickly, and the second piston rod is in a free state in the second cylinder; after the second delay time period, the glass sheet to be longitudinally broken reaches directly above the first longitudinal breaking wheel group, the controller controls the two-position five-way solenoid valve to be energized, the first piston rod extends, and the first longitudinal breaking wheel group rises; after the third delay time period, the controller controls the two-position three-way solenoid valve and the two-position five-way solenoid valve to be de-energized at the same time, the first piston rod and the second piston rod retract at the same time, and the first longitudinal breaking wheel group descends; the value of the second time period is greater than the value of the first time period; S4. After the fourth delay time period, the glass plate to be longitudinally bent reaches directly above the first longitudinal bending wheel group and the second longitudinal bending wheel group, and the controller controls the two-position five-way solenoid valve to be energized, the first piston rod extends, and the first longitudinal bending wheel group and the second longitudinal bending wheel group rise at the same time; after the fifth delay time period, the controller controls the two-position five-way solenoid valve to be de-energized, the first piston rod retracts, and the first longitudinal bending wheel group and the second longitudinal bending wheel group descend at the same time.

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