Marking device and glass production line

Abstract

The utility model belongs to the technical field of glass production, and particularly relates to a mark printing device and a glass production line, which are used for printing graphic marks on objects to be marked. The marking device comprises a printing tool used for making contact with the object to be marked and a driving structure used for driving the printing tool to move towards the object to be marked in the first direction. The buffer structure is located between the driving structure and the printing tool, the moving structure is used for driving the driving structure and the printing tool to synchronously move to a preset position, and the preset position and the object to be marked are arranged at intervals in the first direction; the buffering structure is used for buffering vibration generated by the object to be marked on the printing tool when the object to be marked makes contact with the printing tool. According to the utility model, the problems of how to improve the marking efficiency and how to prevent the object to be marked and the printing tool from being damaged can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass production, and in particular relates to a marking device and a glass production line. Background Art

[0002] When producing flat glass on a float glass production line, it is increasingly common to print labels on the surface of flat glass in order to achieve product identification, brand promotion, and comply with relevant regulations. Sometimes it is necessary to print specific trademarks or other graphic logos at a certain position on the flat glass.

[0003] However, traditional glass printing methods have many disadvantages. Traditional glass printing methods usually require manual printing away from the production line. This printing method is inefficient and greatly affects production efficiency. In addition, the impact force is too large during the printing process, which can easily cause damage to the glass and printing tools. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a marking device, aiming to solve the problems of how to improve the marking efficiency and how to prevent damage to the object to be marked and the printing tool.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] In a first aspect, a printing device is provided for printing a graphic mark on an object to be printed, the printing device comprising a printing tool for contacting the object to be printed, a driving structure for driving the printing tool to move along a first direction toward the object to be printed, a buffer structure located between the driving structure and the printing tool, and a moving structure for driving the driving structure and the printing tool to move synchronously to a preset position, the preset position being spaced apart from the object to be printed along the first direction, and the buffer structure being used to buffer vibration generated by the object to be printed on the printing tool when the object to be printed contacts the printing tool.

[0007] In some embodiments, the buffer structure includes a cylinder seat and a piston member, the cylinder seat is connected to the output end of the driving structure, the cylinder seat has a piston cavity, one end of the piston member is slidably disposed in the piston cavity, the other end of the piston member is connected to the printing tool, and one end of the piston member can move back and forth in the piston cavity along the first direction.

[0008] In some embodiments, the piston member includes a piston rod and a connecting block connected to the piston rod and facing away from the cylinder seat, the piston rod is slidably disposed in the piston cavity, and the connecting block is connected to the printing tool.

[0009] In some embodiments, an elastic member is sleeved on the piston rod, and two ends of the elastic member elastically abut against the cylinder seat and the connecting block respectively.

[0010] In some embodiments, a screw is connected between the connection block and the printing tool, two ends of the screw are respectively threadedly connected to the connection block and the printing tool, and the screw extends out of the connection block away from the surface of the printing tool.

[0011] In some embodiments, the movable structure includes a bracket, a first guide rail, a second guide rail, a first slider and a second slider, the first guide rail is installed on the bracket, the first guide rail extends along the second direction, the first slider can be slidably connected to the first guide rail along the second direction, one end of the second guide rail is connected to the first slider, the second guide rail extends along a third direction, the second slider can be slidably connected to the second guide rail along the third direction, the driving structure is installed on the second slider, the second direction is perpendicular to the third direction, and the plane determined by the second direction and the third direction is perpendicular to the first direction.

[0012] In some embodiments, the marking device further includes a pull rod extending along the third direction, the second slider is connected to a mounting block, one end of the pull rod is connected to the mounting block, and the other end of the pull rod extends beyond the first guide rail.

[0013] In some embodiments, the driving structure includes a connecting plate and an actuator cylinder, the connecting plate is connected to the second slider, the actuator cylinder is installed on the connecting plate, and the buffer structure is connected to the output end of the actuator cylinder.

[0014] In a second aspect, a glass production line is provided, which includes the above-mentioned marking device, and the glass production line also includes a conveying structure for conveying the object to be marked, and the marking device is adjacent to the conveying structure.

[0015] In some embodiments, the glass production line includes an in-place detection switch and a resisting structure arranged on the conveying path of the object to be printed, the conveying structure is used to convey the object to be printed to the printing position, the in-place detection switch is used to sense the object to be printed at the printing position, and the resisting structure is used to resist the object to be printed according to the in-place detection switch, and the in-place detection switch is communicatively connected with the driving structure and the resisting structure.

[0016] The printing device provided by the present application has a moving structure capable of driving the driving structure and the printing tool to move to a position opposite to the position to be printed on the object to be printed, and then the driving structure is actuated to cause the printing tool to move toward the object to be printed along a first direction and contact the position to be printed on the object to be printed, thereby leaving a mark and completing the printing. Therefore, the test equipment of the present application can automatically perform printing through the cooperation of the moving structure, the driving structure and the printing tool, and the entire process does not require manual assistance, which greatly improves the printing efficiency and production efficiency, and the buffer structure can buffer the vibration of the object to be printed on the printing tool when the object to be printed contacts the printing tool, so as to avoid rigid contact between the printing tool and the object to be printed, and prevent damage to the object to be printed and the printing tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or exemplary technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the marking device provided in the embodiment of the present application;

[0019] Figure 2 It is a partial structural schematic diagram of a marking device provided in an embodiment of the present application;

[0020] Figure 3 It is a gas circuit diagram of the marking device provided in the embodiment of the present application;

[0021] Figure 4 It is a partial structural schematic diagram of a glass production line provided in one embodiment of the present application;

[0022] Figure 5 It is a partial structural schematic diagram of a glass production line provided in another embodiment of the present application.

[0023] Among them, the reference numerals in the figure are:

[0024] 10. Moving structure; 11. First guide rail; 12. Second guide rail; 13. First slider; 14. Second slider; 15. Bracket; 20. Driving structure; 21. Connecting plate; 22. Actuating cylinder; 30. Buffering structure; 31. Cylinder seat; 321. Piston rod; 322. Connecting block; 323. Elastic member; 33. Buffering cylinder; 40. Printing tool; 50. Screw; 60. Pull rod; 61. Holding handle; 70. Mounting block; 81. Pneumatic triplet; 82. Control solenoid valve; 83. Speed ​​regulating valve; 200. Conveying structure; 300. In-place detection switch; 400. Resisting structure; 410. Support; 420. Positioning cylinder; 430. Baffle; 500. Object to be printed. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] See also Figures 1 to 3 The embodiment of the present application provides a marking device for printing a graphic mark on an object to be marked 500, the marking device includes a printing tool 40 for contacting the object to be marked 500, a driving structure 20 for driving the printing tool 40 to move along a first direction a toward the object to be marked 500, a buffer structure 30 located between the driving structure 20 and the printing tool 40, and a moving structure 10 for driving the driving structure 20 and the printing tool 40 to move synchronously to a preset position, the preset position is spaced apart from the object to be marked 500 along the first direction a, and the buffer structure 30 is used to buffer the vibration generated by the object to be marked 500 on the printing tool 40 when the object to be marked 500 contacts the printing tool 40.

[0030] It can be understood that the printing tool 40 of the embodiment of the present application has a stamping end facing the object to be printed 500, and a mark is formed on the stamping end, such as some patterns, texts or symbols, and the stamping end is stained with pigment. By moving the printing tool 40 toward the object to be printed 500 and making the stamping end of the printing tool 40 contact with the surface of the object to be printed 500, a mark is left on the surface of the object to be printed 500, that is, the surface of the object to be printed 500 can be printed by the printing tool 40.

[0031] The printing tool 40 of the embodiment of the present application can be a stamp, or a handprint mold or other tool capable of leaving a mark. In addition, the object 500 to be printed is a flat glass, and in other possible embodiments, the object 500 to be printed can also be other products that need to be printed.

[0032] In the embodiment of the present application, the movable structure 10 is capable of driving the driving structure 20 and the printing tool 40 to move to a preset position, which is a position directly opposite to the position to be printed on the object 500. The movable structure 10 drives the driving structure 20 and the printing tool 40 to move to a position directly opposite to the position to be printed on the object 500. Then the driving structure 20 moves the printing tool 40 along the first direction a toward the object 500 to be printed and contacts the position to be printed on the object 500, thereby leaving a mark, so that the position of the print is accurate.

[0033] The printing device provided by the present application has a moving structure 10 that can drive the driving structure 20 and the printing tool 40 to move to a position that is directly opposite to the position to be printed on the object 500 to be printed, and then the driving structure 20 is actuated to cause the printing tool 40 to move toward the object 500 to be printed along the first direction a and contact the position to be printed on the object 500 to be printed, thereby leaving a mark and completing the printing. Therefore, the test equipment of the present application can automatically perform printing through the cooperation of the moving structure 10, the driving structure 20 and the printing tool 40. The entire process does not require manual assistance, which greatly improves the printing efficiency and production efficiency. The buffer structure 30 can buffer the vibration of the object 500 to be printed on the printing tool 40 when the object 500 to be printed contacts with the printing tool 40, so as to avoid rigid contact between the printing tool 40 and the object 500 to be printed, and prevent damage to the object 500 to be printed and the printing tool 40.

[0034] In some embodiments, the buffer structure 30 includes a cylinder seat 31 and a piston member. The cylinder seat 31 is connected to the output end of the driving structure 20. The cylinder seat 31 has a piston cavity. One end of the piston member is slidably arranged in the piston cavity. The other end of the piston member is connected to the printing tool 40. One end of the piston member can reciprocate in the piston cavity along the first direction a. The end of the piston member away from the object to be printed 500 forms a closed air chamber. Under the action of the air pressure in the air chamber, the piston member is equivalent to being in a suspended state. Therefore, it can play a certain blocking role in the transmission of vibration, thereby achieving a buffering effect.

[0035] It can be understood that the buffer structure 30 can be a buffer cylinder 33. During the marking process, the buffer cylinder 33 does not need to be connected to an air source.

[0036] The piston member includes a piston rod 321 and a connection block 322 connected to the piston rod 321 and away from the cylinder seat 31. The piston rod 321 is slidably arranged in the piston cavity, and the connection block 322 is connected to the printing tool 40. Specifically, there are two piston rods 321, and the two piston rods 321 are arranged parallel to each other and spaced apart, so as to prevent the connection block 322 and the printing tool 40 from being offset when moving along the first direction a.

[0037] In some embodiments, an elastic member 323 is sleeved on the piston rod 321, and the two ends of the elastic member 323 elastically abut against the cylinder seat 31 and the connecting block 322, respectively. By providing the elastic member 323, appropriate printing pressure can be ensured, and not only that, it can also effectively prevent the impact force from being too large during printing and damaging the printing tool 40, and can adapt to flat glass of different thicknesses to ensure sufficient buffering. Optionally, the elastic member 323 of the embodiment of the present application is a compression spring.

[0038] In some embodiments, a screw 50 is connected between the connecting block and the printing tool 40, and the two ends of the screw 50 are threadedly connected to the connecting block 322 and the printing tool 40 respectively. The screw 50 extends along the first direction a, and the screw 50 extends out of the connecting block 322 away from the surface of the printing tool 40. When the printing tool 40 needs to be replaced, it is only necessary to screw the printing tool 40 and the screw 50 to separate them, which facilitates disassembly and improves the efficiency of replacing the printing tool 40.

[0039] In other possible embodiments, the buffer structure 30 may include two connectors and two magnets, the two connectors are respectively connected to the output end of the driving structure 20 and the printing tool 40, and the opposite ends of the two connectors are respectively connected to the two magnets, and the magnetic poles of the opposite ends of the two magnets are the same, so the two magnets repel each other, and the repulsive force between the two magnets makes the printing tool 40 suspended, which can also play a buffering role. In another possible embodiment, the buffer structure 30 may include two connectors and a rubber member, the two connectors are respectively connected to the output end of the driving structure 20 and the printing tool 40, and the rubber member is connected between the opposite ends of the two connectors. Since the rubber member is elastic, the elastic force of the rubber member reduces the vibration during transmission, which can also play a buffering role.

[0040] In some embodiments, the movable structure 10 includes a bracket 15, a first guide rail 11, a second guide rail 12, a first slider 13 and a second slider 14. The first guide rail 11 is installed on the bracket 15. The first guide rail 11 extends along the second direction b. The first slider 13 can be slidably connected to the first guide rail 11 along the second direction b. One end of the second guide rail 12 is connected to the first slider 13. The second guide rail 12 can move with the first slider 13. The second guide rail 12 extends along a third direction c. The second slider 14 can be slidably connected to the second guide rail 12 along the third direction c. The driving structure 20 is installed on the second slider 14. The driving structure 20 and the printing tool 40 can move with the second slider 14. The second direction b is perpendicular to the third direction c. The plane determined by the second direction b and the third direction c is perpendicular to the first direction a.

[0041] In the embodiment of the present application, the plane defined by the second direction b and the third direction c is a horizontal plane, that is, the first direction a is a vertical direction. Through the cooperation of the first guide rail 11, the second guide rail 12, the first slider 13 and the second slider 14, the driving structure 20 and the printing tool 40 can be accurately moved to the position to be printed on the object 500 to be printed. Then, the driving structure 20 only needs to drive the printing tool 40 to move downward to contact the object 500 to be printed, which can improve the accuracy of the printing, and at the same time, make the movement of the driving structure 20 and the printing tool 40 smoother, and improve the efficiency of the movement of the driving structure 20 and the printing tool 40. The position of the printing tool 40 relative to the flat glass can also be adjusted through the first guide rail 11, the second guide rail 12, the first slider 13 and the second slider 14, so that the position of the printing mark can be adjusted.

[0042] In the embodiment of the present application, there are two first guide rails 11, and there are two first sliders 13. The two first slide rails are arranged at an interval and parallel to each other. The two first sliders 13 are opposite to each other. The two ends of the second guide rail 12 are respectively connected to the two first sliders 13. Therefore, the movement of the second guide rail 12 is smoother, and the shaking of the second guide rail 12 during the movement is avoided.

[0043] In some embodiments, the marking device further includes a pull rod 60, the pull rod 60 extends along the third direction c, the second slider 14 is connected to a mounting block 70, one end of the pull rod 60 is connected to the mounting block 70, and the other end of the pull rod 60 extends beyond the first guide rail 11. By pulling the end of the pull rod 60 away from the mounting block 70, the printing tool 40 can be pulled out to replace the printing tool 40, which can improve the efficiency of replacing and maintaining the printing tool 40.

[0044] Furthermore, a gripping handle 61 is provided at one end of the pull rod 60 away from the mounting block 70 . The gripping handle 61 is provided to facilitate an operator to grip the gripping handle 61 , thereby making pulling the pull rod 60 more labor-saving.

[0045] In some embodiments, the driving structure 20 includes a connecting plate 21 and an actuating cylinder 22, wherein the connecting plate 21 is connected to the second slider 14, the actuating cylinder 22 is mounted on the connecting plate 21, and the buffer structure 30 is connected to the output end of the actuating cylinder 22. The output end of the actuating cylinder 22 can output a driving force, so that the printing tool 40 has the kinetic energy to contact the object 500 to be printed and leave a mark on the object 500 to be printed.

[0046] In the embodiment of the present application, the execution cylinder 22 is connected to a gas source, and gas is supplied through the gas source. Further, as Figure 3 As shown, a pneumatic triplet 81 , a control solenoid valve 82 and a speed regulating valve 83 are sequentially arranged between the air source and the actuator cylinder 22 .

[0047] The present application also proposes a glass production line, which includes a marking device. The specific structure of the marking device refers to the above-mentioned embodiment. Since the glass production line adopts all the technical solutions of all the above-mentioned embodiments, it also has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0048] In some embodiments, Figure 4 and Figure 5As shown, the glass production line includes an in-place detection switch 300 and a resisting structure 400 arranged on the conveying path of the object to be printed 500, the conveying structure 200 is used to convey the object to be printed 500 to the printing position, the in-place detection switch 300 is used to sense the object to be printed 500 located at the printing position, and the resisting structure 400 is used to resist the object to be printed 500 according to the in-place detection switch 300, and the in-place detection switch 300 is communicatively connected with the driving structure 20 and the resisting structure 400.

[0049] When the flat glass is conveyed to the printing position by the conveying structure 200, the in-place detection switch 300 senses the flat glass at the printing position, and the in-place detection switch 300 transmits a signal to the resisting structure 400, which is lifted to block the flat glass for positioning. At the same time, the in-place detection switch 300 transmits a signal to the control solenoid valve 82 of the driving structure 20, thereby driving the execution cylinder 22 to move, and the printing tool 40 installed on the execution cylinder 22 descends and slowly presses on the upper surface of the flat glass. After completing the printing action, the execution cylinder 22 retracts so that the printing tool 40 is no longer in contact with the flat glass, and the resisting structure 400 descends and no longer blocks the flat glass, so that the flat glass can continue to be conveyed forward.

[0050] The present application can utilize the original production line control structure to integrate the printing device into the production line, realize the automatic printing function, and avoid offline printing actions, thereby saving a lot of material and manpower, reducing the labor intensity of on-site operators, and reducing the risk of injury to operators.

[0051] Specifically, the in-place detection switch 300 is a photoelectric detection switch. Of course, in other possible implementations, the in-place detection switch 300 can also be a capacitive switch, a magnetic induction switch, an ultrasonic switch, or a laser switch, etc., and the present application does not limit the specific form of the in-place detection switch 300. In addition, the conveying structure 200 of the present application includes a plurality of conveying rollers arranged at intervals, each conveying roller rotates around its own axis, and the roller surface of each conveying roller contacts the flat glass, thereby driving the flat glass to be conveyed forward.

[0052] In some embodiments, the resisting structure 400 includes a support 410, a positioning cylinder 420, and a baffle 430. One end of the baffle 430 is rotatably connected to the support 410, and the baffle 430 is connected to the output end of the positioning cylinder 420. The positioning cylinder 420 drives the baffle 430 to rotate, so that the baffle 430 has a first state of resisting the flat glass and a second state of being separated from the flat glass. In addition, a buffer is provided on the side of the baffle 430 facing the flat glass. The buffer can be sponge, rubber, or silicone, etc. When the baffle 430 resists the flat glass, it has a buffering effect to prevent damage to the flat glass.

[0053] To sum up, in the marking device provided by the present application, the movable structure 10 can drive the driving structure 20 and the printing tool 40 to move to a position opposite to the position to be printed on the object 500 to be marked, and then the driving structure 20 is actuated to make the printing tool 40 move toward the object 500 to be marked along the first direction a and contact with the position to be printed on the object 500 to be marked, thereby leaving a mark and completing the marking. Therefore, the test equipment of the present application can automatically perform marking through the cooperation of the movable structure 10, the driving structure 20 and the printing tool 40, and the entire process does not require manual assistance, which greatly improves the printing efficiency and production efficiency, and the buffer structure 30 can buffer the vibration of the object 500 to be marked on the printing tool 40 when the object 500 to be marked contacts with the printing tool 40, so as to avoid rigid contact between the printing tool 40 and the object 500 to be marked, and prevent damage to the object 500 to be marked and the printing tool 40.

[0054] The above are only optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A marking device for printing a pattern mark on an object to be marked (500), characterized in that: The marking device comprises a printing tool (40) for contacting the object (500) to be marked, a driving structure (20) for driving the printing tool (40) to move along a first direction toward the object (500) to be marked, a buffer structure (30) located between the driving structure (20) and the printing tool (40), and a moving structure (10) for driving the driving structure (20) and the printing tool (40) to move synchronously to a preset position, wherein the preset position is spaced apart from the object (500) to be marked along the first direction, and the buffer structure (30) is used to buffer the vibration of the object (500) to be marked on the printing tool (40) when the object (500) to be marked and the printing tool (40) are in contact.

2. The marking device according to claim 1, characterized in that: The buffer structure (30) comprises a cylinder seat (31) and a piston member, wherein the cylinder seat (31) is connected to the output end of the driving structure (20), the cylinder seat (31) has a piston cavity, one end of the piston member is slidably disposed in the piston cavity, and the other end of the piston member is connected to the printing tool (40), and one end of the piston member can reciprocate in the piston cavity along the first direction.

3. The marking device according to claim 2, characterized in that: The piston member comprises a piston rod (321) and a connecting block (322) connected to the piston rod (321) and facing away from the cylinder seat (31); the piston rod (321) is slidably disposed in the piston cavity; and the connecting block (322) is connected to the printing tool (40).

4. The marking device according to claim 3, characterized in that: An elastic member (323) is sleeved on the piston rod (321), and two ends of the elastic member (323) elastically abut against the cylinder seat (31) and the connecting block (322) respectively.

5. The marking device according to claim 3, characterized in that: A screw rod (50) is connected between the connection block (322) and the printing tool (40), and two ends of the screw rod (50) are respectively threadedly connected to the connection block (322) and the printing tool (40), and the screw rod (50) extends out of the connection block (322) away from the surface of the printing tool (40).

6. The marking device according to any one of claims 1 to 5, characterized in that: The movable structure (10) comprises a bracket (15), a first guide rail (11), a second guide rail (12), a first slider (13) and a second slider (14); the first guide rail (11) is mounted on the bracket (15); the first guide rail (11) extends along a second direction; the first slider (13) is slidably connected to the first guide rail (11) along the second direction; one end of the second guide rail (12) is connected to the first slider (13); the second guide rail (12) extends along a third direction; the second slider (14) is slidably connected to the second guide rail (12) along the third direction; the driving structure (20) is mounted on the second slider (14); the second direction is perpendicular to the third direction; and a plane defined by the second direction and the third direction is perpendicular to the first direction.

7. The marking device according to claim 6, characterized in that: The marking device further comprises a pull rod (60), wherein the pull rod (60) extends along the third direction, the second slider (14) is connected to a mounting block (70), one end of the pull rod (60) is connected to the mounting block (70), and the other end of the pull rod (60) extends beyond the first guide rail (11).

8. The marking device according to claim 6, characterized in that: The driving structure (20) comprises a connecting plate (21) and an actuating cylinder (22), wherein the connecting plate (21) is connected to the second sliding block (14), the actuating cylinder (22) is mounted on the connecting plate (21), and the buffer structure (30) is connected to an output end of the actuating cylinder (22).

9. A glass production line, characterized in that: The marking device comprises the marking device as claimed in any one of claims 1 to 8, the glass production line further comprises a conveying structure (200) for conveying the object to be marked (500), and the marking device is adjacent to the conveying structure (200).

10. The glass production line according to claim 9, characterized in that: The glass production line comprises an in-position detection switch (300) and a resisting structure (400) arranged on a conveying path of the object to be printed (500); the conveying structure (200) is used to convey the object to be printed (500) to a printing position; the in-position detection switch (300) is used to sense the object to be printed (500) located at the printing position; the resisting structure (400) is used to resist the object to be printed (500) according to the in-position detection switch (300); and the in-position detection switch (300) is communicatively connected with the driving structure (20) and the resisting structure (400).

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