Multifunctional automatic label welding device

Abstract

The invention discloses a multifunctional automatic label welding device, and relates to the technical field of label welding, the multifunctional automatic label welding device comprises a positioning frame body, a label and a safe edge, a welding device is vertically mounted at the top of the positioning frame body, a fixing device is arranged on the side, away from the welding device, of the positioning frame body, and the fixing device is fixedly connected with the label through a suction cup; the sign is connected with the edge of the sign in a welded mode through a welding device. Through the welding device and the fixing device, pre-bending welding is carried out on the safe edge and the label, the fitting degree of the safe edge and the label is improved, the welding strength is improved, and the influence of stress generated by bending the safe edge after welding on the label is avoided; the surface of the label is subjected to friction cleaning while the label is rotationally adjusted, meanwhile, the positions and the number of welding spots are planned at equal intervals according to the scanned edge of the label, the welding machining cost is reduced, and the automation degree of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sign welding, in particular to a multifunctional automatic sign welding device. Background Art

[0002] With the development of industrial automation, the production requirements of signs are becoming increasingly higher, especially in the fields of identification, advertising and security. The edges of signs often need to be welded with edge guards to protect the edges of the signs. Due to the variety of sign shapes, the edge guards of signs are often processed by manual welding, and the edge guards are welded to the edge of the sign by electric welding.

[0003] In traditional manual welding, the edge guard must be pre-bent to fit around the edge of a sign with a curved edge. Manually bending the edge guard is difficult, and the stress from welding can easily cause the overall sign to deform due to the stress on the edge guard. This often leads to inconsistent welding skills and unstable weld quality among workers. Furthermore, manual welding of signs and frames is prone to defects such as cold welds, missed welds, and uneven weld marks, which reduce the sign's mechanical strength and aesthetic appeal. These defects not only shorten the product's service life but can also lead to safety incidents in actual use. Therefore, a multifunctional automated sign welding device has been developed. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional automatic welding device for signage to solve the problems raised in the above background technology.

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

[0006] A multifunctional automatic sign welding device includes a positioning frame, a sign, and an edge guard. A welding device is vertically installed on the top of the positioning frame. A fixing device is provided on the side of the positioning frame away from the welding device. The fixing device is fixedly connected to the sign via a suction cup. The sign is welded to the edge of the sign via the welding device.

[0007] The welding device includes a movable side panel and a bending mechanism, an infrared rangefinder is installed on one side of the bending mechanism, the bending mechanism and the infrared rangefinder are both installed on one side of the movable side panel, a telescopic rod is provided on the top of the movable side panel, the movable side panel is connected to the positioning frame through the telescopic rod, and a welding assembly is installed on the bottom of the movable side panel.

[0008] The bending mechanism includes a clamping roller assembly, a contact roller assembly, and a bending roller assembly. A groove is formed on one side of the movable side plate, and an electric push rod is provided on the inner wall of the groove. The clamping roller assembly, the contact roller assembly, and the bending roller assembly are all movably connected to the movable side plate via the groove. One end of the edge guard passes through the clamping roller assembly, the contact roller assembly, and the bending roller assembly in sequence. The electric push rod on the inner wall of the groove of the movable side plate is controlled to adjust the relative positions of the clamping roller assembly, the contact roller assembly, and the bending roller assembly, thereby adjusting the bending of the fastened edge guard. The edge guard is pre-bent to improve the fit between the edge guard and the edge of the sign, thereby improving the quality of the sign edge welding.

[0009] The welding assembly includes an electric slide rail connected to the bottom of the movable side panel. A welding head is connected to one side of the electric slide rail via a slider, with one end of the welding head facing the inner angle between the sign and the edge guard. The electric slide rail adjusts the position and angle of the welding head, which is used to weld and secure the sign and edge guard together. This welding process also reduces the exposure of weld points, enhances the weld strength between the sign and edge guard, reduces the need for polishing the outer weld points, and improves the overall aesthetics of the sign.

[0010] The fixing device is composed of an electric suction cup, a rod, and a drive motor. The drive motor is fixedly connected to the positioning frame. The output shaft of the drive motor is fixedly connected to the electric suction cup via a coupling. The electric suction cup is fixedly connected to the sign. The sign is placed longitudinally on one side of the fixing device. The electric suction cup is used to absorb and fix one side of the plate-shaped sign. The drive motor is controlled to rotate and the angle of the sign on one side of the electric suction cup is adjusted to drive the entire sign to rotate. As the welding head welds the angle between the sign and the inner side of the edge guard, the drive motor is controlled to rotate the sign simultaneously to facilitate the falling of flying chips generated by welding, reduce the impact of welding chips on the sign and edge guard, and facilitate cleaning.

[0011] The clamping roller assembly includes a positioning slide, one side of which is movably connected to a movable side plate. A rotating rod extends through the bottom of the positioning slide, the top of which is connected to a deflection motor, and the bottom end of the rotating rod is fixedly connected to an electric slide. One side of the electric slide is connected to an inner roller, and the other side of the electric slide is connected to an outer roller. A positioning roller is mounted on the bottom of the outer roller, and the outer wall of the positioning roller contacts the edge of the sign. The deflection motor is controlled to rotate the rotating rod to drive the electric slide at the bottom end to deflect. The deflection of the electric slide simultaneously drives the inner and outer rollers to deflect synchronously. The electric slide is also controlled to adjust the spacing between the inner and outer rollers. The inner roller cooperates with the outer roller to clamp and bend the edge guard. The cross-sectional diameters of the positioning roller and the outer roller are equal, so that one side of the positioning roller contacts the sign while controlling the rapid alignment of the edge guard and the sign, thereby improving the efficiency of the overall splicing and welding.

[0012] The movable side panel has three grooves equidistantly spaced about one side of the movable side panel. Each groove houses a clamping roller assembly, a contact roller assembly, and a bending roller assembly. The bending roller assembly has the same structure as the clamping roller assembly. During the welding process of the sign and edge guard, the electric suction cup and drive motor in the fixture drive the sign to rotate. Simultaneously, the inner and outer rollers in the clamping and bending roller assemblies rotate, rubbing and cleaning the outer wall of the edge guard. Positioning rollers at the bottom of the outer rollers rub and clean the edge of the sign, quickly pre-treating the sign and edge guard for welding and reducing the effects of oxide layers and foreign matter on the welding process.

[0013] A pressure sensor is provided between the friction roller and the groove, and two infrared rangefinders are provided. The two infrared rangefinders are symmetrically arranged on both sides of the friction roller, with one end of the infrared rangefinder facing the edge of the sign. The friction roller and the infrared rangefinder constitute a self-test system. The sign is fixed to one side of the welding device via an electric suction cup, and a motor is driven to rotate the sign. At the same time, the edge of the sign is scanned by the infrared rangefinder to detect the flatness of the edge of the sign. When burrs appear on the edge of the sign, the telescopic rod is driven to push the positioning roller in the bending mechanism, causing the positioning roller to contact the edge of the sign, reciprocating the deflection of the sign. The burrs are quickly smoothed by the positioning roller, and the burr smoothing status is monitored and scanned by the infrared rangefinder. While scanning, the infrared rangefinder records and calculates the edge circumference shape of the sign. At the same time, the position and number of spot welding points are calculated based on the bending shape of the sign edge, thereby reducing the cost of the welding process and enhancing the strength of the welding.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention uses a welding device and a fixing device to pre-bend and weld the edge guard and the nameplate, thereby improving the fit between the edge guard and the nameplate, increasing the welding strength, and avoiding the influence of the stress generated by the bending of the edge guard after welding on the nameplate. The inner corners of the nameplate and the edge guard are welded through the welding assembly and the bending mechanism, reducing the need for polishing the outer side for welding, thereby improving the overall aesthetics of the nameplate. At the same time, the fixing device is used to vertically place the nameplate, which facilitates the vertical falling of flying chips generated by welding, reduces the influence of welding slag on the nameplate and the edge guard, and improves the overall quality of welding. By coordinating the settings of the clamping roller group, the resistance roller and the bending roller group, the surface of the nameplate is friction-cleaned while the nameplate is rotated and adjusted, and pretreatment is performed quickly to improve welding efficiency. At the same time, according to the edge of the scanned nameplate, the position and number of welding points are equidistantly planned, thereby reducing the cost of welding processing and improving the degree of automation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the connection structure of the fixing device and the sign of the present invention;

[0019] Figure 3 It is a schematic diagram of the bending mechanism and edge protection connection structure of the present invention;

[0020] Figure 4 It is a schematic structural diagram of the welding device of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the clamping roller group of the present invention.

[0022] In the picture:

[0023] 1. Welding device; 101. Movable side panel;

[0024] 102, bending mechanism; 1021, clamping roller assembly; 10211, positioning slide; 10212, rotating rod; 10213, deflection motor; 10214, electric chute; 10215, inner roller; 10216, outer roller; 10217, positioning roller;

[0025] 1022, conflict roller; 1023, bending roller group;

[0026] 103. Infrared rangefinder; 104. Telescopic rod; 105. Welding assembly; 1051. Electric slide rail; 1052. Welding head;

[0027] 2. Fixing device;

[0028] 3. Signage;

[0029] 4. Edge protection. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 5 , the present invention provides a technical solution:

[0032] A multifunctional automated sign welding device includes a positioning frame, a sign 3, and an edge guard 4. A welding device 1 is vertically mounted on the top of the positioning frame. A fixing device 2 is provided on the side of the positioning frame away from the welding device 1. The fixing device 2 is fixedly connected to the sign 3 via a suction cup. The sign 3 is welded to the edge of the sign 3 via the welding device 1.

[0033] The welding device 1 includes a movable side panel 101 and a bending mechanism 102. An infrared rangefinder 103 is installed on one side of the bending mechanism 102. The bending mechanism 102 and the infrared rangefinder 103 are both installed on one side of the movable side panel 101. A telescopic rod 104 is provided on the top of the movable side panel 101. The movable side panel 101 is connected to the positioning frame through the telescopic rod 104. A welding assembly 105 is installed at the bottom of the movable side panel 101.

[0034] The bending mechanism 102 includes a clamping roller group 1021, a resistance roller 1022 and a bending roller group 1023. A groove is provided on one side of the movable side plate 101, and an electric push rod is provided on the inner wall of the groove. The clamping roller group 1021, the resistance roller 1022 and the bending roller group 1023 are all movably connected to the movable side plate 101 through the groove, and one end of the edge guard 4 passes through the clamping roller group 1021, the resistance roller 1022 and the bending roller group 1023 in sequence. Pass one end of the edge guard 4 through the clamping roller group 1021, the contact roller 1022 and the bending roller group 1023 in sequence, control the electric push rod on the inner wall of the groove of the movable side plate 101, adjust the relative positions of the clamping roller group 1021, the contact roller 1022 and the bending roller group 1023, bend and adjust the fastened edge guard 4, pre-bend the edge guard 4, improve the fit between the edge guard 4 and the edge of the sign 3, and thereby improve the welding quality of the edge of the sign 3.

[0035] The welding assembly 105 includes an electric slide 1051, which is connected to the bottom of the movable side panel 101. A welding head 1052 is connected to one side of the electric slide 1051 via a slider. One end of the welding head 1052 is directly aligned with the inner angle between the sign 3 and the edge guard 4. The electric slide 1051 adjusts the position and angle of the welding head 1052, which is used to weld and fix the joints between the sign 3 and the edge guard 4. The welding process is performed on the inner angle between the sign 3 and the edge guard 4 to reduce the exposure of the weld points, enhance the weld strength between the sign 3 and the edge guard 4, reduce the need for polishing the outer weld points, and improve the overall aesthetics of the sign.

[0036] The fixing device 2 is composed of an electric suction cup, a rod and a drive motor. The drive motor is fixedly connected to the positioning frame. The output shaft of the drive motor is fixedly connected to the electric suction cup via a coupling. The electric suction cup is fixedly connected to the sign 3. The sign 3 is placed longitudinally on one side of the fixing device 2. The electric suction cup is used to adsorb and fix one side of the plate-shaped sign 3. The drive motor is controlled to rotate and the angle of the sign 3 on the side of the electric suction cup is adjusted to drive the sign 3 to rotate as a whole. The welding head 1052 welds the inner angle of the sign 3 and the edge guard 4. While welding, the drive motor is controlled to rotate the sign 3 to facilitate the falling of flying chips generated by welding, reduce the impact of welding chips on the sign 3 and the edge guard 4, and facilitate cleaning.

[0037] The clamping roller group 1021 includes a positioning slide 10211, one side of the positioning slide 10211 is movably connected to the movable side plate 101, a rotating rod 10212 passes through the bottom of the positioning slide 10211, the top of the rotating rod 10212 is connected to the deflection motor 10213, the bottom end of the rotating rod 10212 is fixedly connected to the electric slide 10214, one side of the electric slide 10214 is connected to the inner roller 10215, the other side of the electric slide 10214 is connected to the outer roller 10216, and a positioning roller 10217 is installed at the bottom of the outer roller 10216, and the outer wall of the positioning roller 10217 is in contact with the edge of the sign 3. The deflection motor 10213 is controlled to rotate the rotating rod 10212 to drive the electric slide 10214 at the bottom end to deflect. When the electric slide 10214 deflects, it drives the inner roller 10215 and the outer roller 10216 to deflect synchronously. At the same time, the electric slide 10214 is controlled to adjust the distance between the inner roller 10215 and the outer roller 10216. The inner roller 10215 cooperates with the outer roller 10216 to clamp and bend the edge guard 4. The cross-sectional diameters of the positioning roller 10217 and the outer roller 10216 are equal, so that one side of the positioning roller 10217 contacts the sign 3 while controlling the edge guard 4 to be quickly aligned with the sign 3, thereby improving the efficiency of the overall splicing and welding.

[0038] There are three grooves on one side of the movable side panel 101, and the three grooves are equidistantly distributed about one side of the movable side panel 101. The three grooves are respectively provided with a clamping roller group 1021, a contact roller 1022, and a bending roller group 1023. The structure of the bending roller group 1023 is the same as that of the clamping roller group 1021. During the welding process of the sign 3 and the edge guard 4, the electric suction cup and the drive motor in the fixing device 2 drive the sign 3 to rotate. At the same time, the inner roller 10215 and the outer roller 10216 in the clamping roller group 1021 and the bending roller group 1023 rotate to rub and clean the outer wall of the edge guard 4. The positioning roller 10217 at the bottom of the outer roller 10216 rubs and cleans the edge of the sign 3, quickly performing welding pretreatment on the sign 3 and the edge guard 4 to reduce the influence of the oxide layer and foreign matter on the welding effect.

[0039] A pressure sensor is provided between the conflict roller 1022 and the groove, and two infrared rangefinders 103 are provided. The two infrared rangefinders 103 are symmetrically arranged on both sides of the conflict roller 1022. One end of the infrared rangefinder 103 faces the edge of the sign 3. The conflict roller 1022 and the infrared rangefinder 103 constitute a self-inspection system. The sign 3 is fixed to one side of the welding device 1 by an electric suction cup, and the motor is driven to rotate the sign 3. At the same time, the edge of the sign 3 is scanned by the infrared rangefinder 103 to detect the flatness of the edge of the sign 3. When burrs appear on the edge of the sign 3, the telescopic rod 104 is driven to push the positioning roller 10217 in the bending mechanism 102, so that the positioning roller 10217 conflicts with the edge of the sign 3 and deflects the sign 3 back and forth. The burrs are quickly processed and smoothed by the positioning roller 10217, and the burr smoothing state is monitored and scanned by the infrared rangefinder 103. While scanning, the infrared rangefinder 103 records and calculates the edge circumference shape of the sign 3, and calculates the position and number of spot welding points according to the bending shape of the edge of the sign 3, thereby reducing the cost of welding processing and enhancing the strength of welding.

[0040] Working principle of the present invention:

[0041] First, the sign 3 is fixed to one side of the welding device 1 by an electric suction cup, the motor is driven to rotate the sign 3, and the edge of the sign 3 is scanned by the infrared rangefinder 103 to detect the flatness of the edge of the sign 3. When burrs appear on the edge of the sign 3, the telescopic rod 104 is driven to push the positioning roller 10217 in the bending mechanism 102, so that the positioning roller 10217 contacts the edge of the sign 3, and the sign 3 is deflected back and forth. The burrs are quickly processed and smoothed by the positioning roller 10217, and the burr smoothing state is monitored and scanned by the infrared rangefinder 103. While scanning, the infrared rangefinder 103 records and calculates the edge circumference shape of the sign 3, and calculates the position and number of spot welding points according to the bending shape of the edge of the sign 3.

[0042] Then the edge guards cut into sections are welded and fixed in sequence;

[0043] After planning the positions and number of weld points for equidistant welding, one end of the edge guard 4 is passed through the clamping roller group 1021, the abutting roller 1022 and the bending roller group 1023 in sequence. The electric push rod on the inner wall of the groove of the movable side plate 101 is controlled according to the data detected in the self-detection system to adjust the relative positions of the clamping roller group 1021, the abutting roller 1022 and the bending roller group 1023, and the fastened edge guard 4 is bent and adjusted. The edge guard 4 is pre-bent to improve the fit between the edge guard 4 and the edge of the sign 3;

[0044] The deflection motor 10213 is controlled to rotate the rotating rod 10212 to drive the electric slide 10214 at the bottom end to deflect. When the electric slide 10214 deflects, it drives the inner roller 10215 and the outer roller 10216 to deflect synchronously. At the same time, the electric slide 10214 is controlled to adjust the distance between the inner roller 10215 and the outer roller 10216. The inner roller 10215 cooperates with the outer roller 10216 to clamp and bend the edge guard 4. The cross-sectional diameters of the positioning roller 10217 and the outer roller 10216 are equal, so that one side of the positioning roller 10217 contacts the sign 3, and the edge guard 4 is controlled to be quickly aligned with the sign 3.

[0045] Control the welding assembly 105 to perform internal angle welding on the sign and the edge guard, while rotating the sign 3 through the fixing device 2;

[0046] During the welding process of the sign 3 and the edge guard 4, the electric suction cup and the drive motor in the fixing device 2 are used to drive the sign 3 to rotate, and at the same time, the inner roller 10215 and the outer roller 10216 in the clamping roller group 1021 and the bending roller group 1023 are rotated to rub and clean the outer wall of the edge guard 4, and the positioning roller 10217 at the bottom of the outer roller 10216 rubs and cleans the edge of the sign 3, and the sign 3 and the edge guard 4 are quickly pre-treated for welding to reduce the influence of the oxide layer and foreign matter on the welding effect.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multifunctional automatic welding device for a sign, comprising a positioning frame, a sign (3) and an edge guard (4), characterized in that: A welding device (1) is vertically mounted on the top of the positioning frame, a fixing device (2) is provided on a side of the positioning frame away from the welding device (1), the fixing device (2) is fixedly connected to the sign (3) via a suction cup, and the sign (3) is welded to the edge of the sign (3) via the welding device (1); The welding device (1) comprises a movable side panel (101) and a bending mechanism (102), an infrared rangefinder (103) is installed on one side of the bending mechanism (102), the bending mechanism (102) and the infrared rangefinder (103) are both installed on one side of the movable side panel (101), a telescopic rod (104) is provided on the top of the movable side panel (101), the movable side panel (101) is connected to a positioning frame via the telescopic rod (104), and a welding assembly (105) is installed on the bottom of the movable side panel (101).

2. A multifunctional automatic sign welding device according to claim 1, characterized in that: The bending mechanism (102) comprises a clamping roller group (1021), a resisting roller (1022) and a bending roller group (1023); a groove is provided on one side of the movable side plate (101); an electric push rod is provided on the inner wall of the groove; the clamping roller group (1021), the resisting roller (1022) and the bending roller group (1023) are all movably connected to the movable side plate (101) through the groove; one end of the edge guard (4) passes through the clamping roller group (1021), the resisting roller (1022) and the bending roller group (1023) in sequence.

3. The multifunctional automatic sign welding device according to claim 1, characterized in that: The welding assembly (105) includes an electric slide rail (1051), the electric slide rail (1051) is connected to the bottom of the movable side plate (101), one side of the electric slide rail (1051) is connected to a welding head (1052) via a slider, and one end of the welding head (1052) is facing the inner angle of the sign (3) and the edge guard (4).

4. The multifunctional automatic sign welding device according to claim 2, characterized in that: The fixing device (2) is composed of an electric suction cup, a rod and a drive motor, the drive motor is fixedly connected to the positioning frame, the output shaft of the drive motor is fixedly connected to the electric suction cup via a coupling, and the electric suction cup is fixedly connected to the sign (3).

5. The multifunctional automatic sign welding device according to claim 4, characterized in that: The clamping roller group (1021) comprises a positioning slide (10211), one side of the positioning slide (10211) is movably connected to the movable side plate (101), a rotating rod (10212) is passed through the bottom of the positioning slide (10211), the top of the rotating rod (10212) is connected to a deflection motor (10213), the bottom end of the rotating rod (10212) is fixedly connected to an electric slide (10214), one side of the electric slide (10214) is connected to an inner roller (10215), the other side of the electric slide (10214) is connected to an outer roller (10216), a positioning roller (10217) is installed at the bottom of the outer roller (10216), and the outer wall of the positioning roller (10217) contacts the edge of the sign (3).

6. The multifunctional automatic sign welding device according to claim 2, characterized in that: Three grooves are provided on one side of the movable side plate (101), and the three grooves are equidistantly distributed about one side of the movable side plate (101). The three grooves are respectively provided with a clamping roller group (1021), a contact roller (1022), and a bending roller group (1023). The structure of the bending roller group (1023) is the same as that of the clamping roller group (1021).

7. The multifunctional automatic sign welding device according to claim 6, characterized in that: A pressure sensor is provided between the conflict roller (1022) and the groove, and two infrared rangefinders (103) are provided. The two infrared rangefinders (103) are symmetrically arranged on both sides of the conflict roller (1022), and one end of the infrared rangefinder (103) faces the edge of the sign (3). The conflict roller (1022) and the infrared rangefinder (103) constitute a self-detection system.

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