Welding pressing mechanism

Abstract

The utility model provides a welding down-pressing mechanism which comprises an upper welding assembly, a down-pressing power, a control assembly and a down-pressing assembly, the control assembly is provided with a control switch and an inductive switch corresponding to a starting position and a down-pressing in-place, and the control assembly controls the down-pressing power to start or stop and rotate forwards or reversely. The downward pressing power is matched with the downward pressing assembly through the downward pressing driving connecting piece to drive the downward pressing assembly to press the upper welding assembly, the downward pressing assembly is provided with a reset lifting mechanism, and the downward pressing power serves as driving power of a matching piece corresponding to the inductive switch at the same time. According to the utility model, a simple structure is adopted to press down the welding upper assembly, the welding device can be well applied to welding work of narrow and thin packing belts, and the structure can be combined with lifting power and control of a tensioning wheel in a tensioning mechanism, so that the whole hand-held packing machine is high in automation degree and simple in structure.

Description

Technical Field

[0001] The utility model relates to the field of portable balers, in particular to a welding and pressing mechanism of the portable baler. Background Art

[0002] A portable baler is a portable strapping device that is conveniently carried to relevant work sites to strap items. The portable baler includes a tensioning mechanism and a welding mechanism. The welding mechanism includes an upper welding assembly and a lower welding assembly. During welding, the upper welding assembly is pressed down to press the joint of the strapping tape onto the lower welding assembly for welding. In the past, a handle was used to directly control the rotation of the cam block, and the upper welding assembly was pressed down manually, which had a low degree of automation and was time-consuming and labor-intensive. In the prior art, if a motor drive is used, a series of complex structures such as a corrugated rod and a multi-section connecting rod are required to press down the upper welding assembly. Utility Model Content

[0003] The purpose of the utility model is to provide a welding pressing mechanism, which can use a simple structure to press down and weld the upper components. To this end, the utility model adopts the following technical solutions:

[0004] A welding pressing mechanism comprises an upper welding component and a pressing power; the characteristic is that the welding pressing mechanism is provided with a control component and a pressing component, the control component is provided with a control switch, and an induction switch corresponding to a starting position and a pressing position, the control component controls the start or stop and forward or reverse rotation of the pressing power, the pressing power cooperates with the pressing component through a pressing drive connecting piece to drive the pressing component to press down the upper welding component, the pressing component is provided with a reset lifting mechanism, and the pressing power also serves as the driving power of the matching piece corresponding to the induction switch.

[0005] On the basis of adopting the above technical solutions, the utility model can also adopt the following technical solutions, or use these technical solutions in combination:

[0006] The control component is provided with the control switch, the first induction switch and the second induction switch. The matching piece is a rotating matching piece, which is used to cooperate with the first induction switch and the second induction switch. The first induction switch and the second induction switch are arranged along the rotation path of the rotating matching piece. The first induction switch is used to stop the downward pressing power when the upper welding component is pressed down into place. The second induction switch stops the downward pressing power after the downward pressing power reverses and drives the downward pressing driving connecting piece to reset. The control switch is used to control the forward start of the lifting power, and the forward rotation corresponds to the rotation direction of the downward pressing power that presses down the upper welding component.

[0007] The pressing assembly is rotatably connected to the base of the portable baler, and the pressing assembly includes a rotating frame, which is rotatably connected to the base, and a pressing member supported by an elastic mechanism is arranged on the rotating frame, and a component cooperating with the pressing driving connecting member is arranged on the rotating frame.

[0008] The component that cooperates with the downward pressing driving connecting piece is a roller, and the downward pressing driving connecting piece adopts a rotating cam block, and the end of the rotating cam block is provided with a positioning concave arc structure that cooperates with the roller.

[0009] The pressing assembly includes a bolt, the bolt head is located at the lower end as the pressing member, the bolt passes through the rotating frame and is slidably connected to the rotating frame, and an elastic mechanism for adjusting the force value of a nut threadedly connected to the bolt is arranged between the rotating frame and the bolt head.

[0010] The downward pressing member is provided with a spherical shape to match the top surface of the upper welding component.

[0011] The downward pressing power is connected to the downward pressing driving connecting piece through a reduction transmission mechanism. The reduction transmission mechanism adopts a gear meshing connection mechanism, whose first gear is connected to the downward pressing power, and whose second gear is connected to the downward pressing driving connecting piece. The first gear and the second gear are in transmission connection, and the matching piece corresponding to the induction switch is connected to the second gear.

[0012] The pressing power is fixed on the first side of the base of the portable baler, and the transmission mechanism is located on the second side of the base; the pressing drive connecting piece is connected to the shaft of the second gear and is located on the first side of the base, and the upper welding assembly and the pressing assembly are located on the first side of the base.

[0013] Due to the adoption of the technical solution of the utility model, the utility model adopts a simple structure to press down and weld the upper component, which can be well applied to the welding work of narrow and thin strapping belts, and the structure of the utility model can be used in conjunction with the lifting power and control of the tensioning wheel in the tensioning mechanism, so that the portable strapping machine has a high degree of automation and a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of the layout of the control structure of an embodiment of the utility model.

[0016] Figure 3 It is an exploded view of an embodiment of the utility model.

[0017] Figure 4 This is a schematic diagram of the cooperation between the lower pressing block and the roller in an embodiment of the utility model.

[0018] Figure 5 This is a schematic diagram of the initial state of the control structure of the embodiment of the utility model.

[0019] Figure 6 This is a schematic diagram of the control structure of the embodiment of the utility model when the upper welding component is pressed down to the bottom.

[0020] Figure 7 It is a schematic diagram of an embodiment of the utility model in an initial state.

[0021] Figure 8 It is a schematic diagram of an embodiment of the utility model when the upper welding component is pressed down to the bottom. Implementation

[0022] Refer to the accompanying drawings. The utility model provides a welding pressing mechanism, which is a welding pressing mechanism of a portable baler, including an upper welding component 200, a pressing power, i.e., a motor 3. The portable baler is provided with a lower welding component 202 that cooperates with the upper welding component 200 to complete the welding work, and a welding drive motor 203 that drives the upper welding component 200 to vibrate. The welding pressing mechanism is provided with a control component and a pressing component. The control component is provided with a control switch, an induction switch corresponding to the starting position and the pressing position. The control component controls the motor 3 to start or stop and rotate forward or reverse. The pressing power cooperates with the pressing component through the pressing drive connecting member 6 to drive the pressing component to press the upper welding component 200. The pressing component is provided with a reset lifting mechanism 201. The reset lifting mechanism 201 can first act on the upper welding component 200 to reset it. When the upper welding component 200 rises and resets, the pressing component is also reset. The pressing power also serves as the driving power of the matching member corresponding to the induction switch.

[0023] The control assembly is provided with the control switch (the control switch is not shown in the figure, which is connected to the circuit of the motor 3 and is used to start the motor to rotate forward, and the forward rotation is the rotation direction of the motor 3 corresponding to the downward pressing of the upper welding assembly 200), the first induction switch 41 and the second induction switch 42, the matching piece is a rotating matching piece 4, which is used to cooperate with the first induction switch 41 and the second induction switch 42, and the first induction switch 41 and the second induction switch 42 are arranged along the rotation path of the rotating matching piece. The first induction switch 41 is used to stop the downward pressing power when the upper welding assembly 200 is pressed down into place, and the second induction switch 42 stops the downward pressing power after the downward pressing power reverses and drives the downward pressing driving connecting piece 6 to reset. The reversal timing of the motor 3 can be realized by the timer in the control assembly, that is, when the downward pressing power is stopped, the welding is started, and the motor 3 is automatically started to reverse when the welding time ends.

[0024] The pressing assembly is rotatably connected to the base 100 of the portable baler. The pressing assembly includes a rotating frame 91, and the rotating frame 91 is rotatably connected to the base 100 through a shaft 97. A pressing member 93 supported by an elastic mechanism 92 is provided on the rotating frame 91, and a component that cooperates with the pressing drive connecting member 6 is provided on the rotating frame 91. The component that cooperates with the pressing drive connecting member 6 is a roller 94, and the pressing drive connecting member 6 adopts a rotating cam block, and the end of the rotating cam block is provided with a positioning concave arc structure 60 that cooperates with the roller. Further, the pressing assembly includes a bolt 95, the bolt head is located at the lower end as the pressing member 93, the bolt 95 passes through the rotating frame and is slidably connected to the rotating frame 91, and a nut 96 threadedly connected to the bolt 95 is provided between the rotating frame 91 and the bolt head to adjust the elastic mechanism 92 of the force value. Through this structure, not only the connection is smooth, the pressing and lifting reset are sensitive, but also buffering and adjustment of the pressing force value can be provided.

[0025] The pressing member 93 is provided with a spherical shape to match the top surface of the upper welding assembly.

[0026] The pressing power can be connected to the transmission mechanism through a reduction box, and the transmission mechanism can adopt a reduction transmission mechanism and then be connected to the pressing drive connecting member 6.

[0027] The reduction transmission mechanism adopts a gear meshing connection mechanism, wherein the first gear 61 is connected to the downward pressing power, and the second gear 62 is connected to the downward pressing driving connection piece 6. The first gear 61 and the second gear 62 are in transmission connection, and the matching piece 4 corresponding to the induction switch is connected to the second gear 62. This structure allows the downward pressing power to be used as the lifting power of the tension wheel in the portable baler, so that the driving force of lifting the tension wheel and the driving force of pressing down the upper welding assembly in the portable baler can be jointly applied based on the same motor, and the structure is more compact, which meets the requirements of miniaturized portable balers. At this time, the first gear 61 can be connected to the lifting connection piece of the tension wheel, and the first induction switch 41 and the second induction switch 42 can also be used as the motor stop switch when the tension wheel is lifted into place and the motor stop switch after the tension wheel is lowered and reset.

[0028] Through the structure of the utility model, the pressing power can be fixed on the first side of the base 100, and the transmission mechanism can be located on the second side of the base 100; the pressing drive connecting member 6 is connected to the shaft 620 of the second gear 62 and is located on the first side of the base 100, and the upper welding assembly 200 and the pressing assembly are located on the first side of the base 100, so that enough space can be reserved for the welding drive motor of the portable packaging machine to be set on the second side.

[0029] The first induction switch 41 and the second induction switch 42 can both be micro switches, which are arranged on the fixing plate 101. The fixing plate 101 can be a part of the base 100 or a separate component fixedly mounted on the base 100. The rotating matching member 4 is arranged in a fan-shaped block, which has a top arc and corners located on both sides of the top arc, and respectively matches with the first induction switch 41 and the second induction switch 42.

[0030] At the beginning of the work, the rotating matching part 4 is pressed on the second induction switch 42, and the control button is pressed, and the downward pressing power is started in the positive direction, driving the first gear 61 to rotate clockwise, and then driving the rotating matching part 4 to rotate counterclockwise, driving the downward pressing driving connecting part 6, and then the downward pressing driving connecting part 6 is combined with the downward pressing component and driven to rotate and press down, and then press down the upper welding component. When the rotating matching part 4 is pressed to the first induction switch, the downward pressing component presses the lower welding component into place, the downward pressing power stops, and the welding mechanism starts to weld the strapping tape. After the welding is completed, the downward pressing power is reversed and started to drive the first gear 61 to reverse counterclockwise, and the rotating matching part 4 returns to the initial state and presses on the second induction switch 42, and the downward pressing power stops. At this time, the downward pressing driving connecting part 6 rotates to the position of cooperating with the downward pressing component to reset and lift up. Under the upward lifting drive of the reset lifting mechanism 201, the upper welding component 200 is reset and lifted, and the downward pressing component rotates and lifts to reset.

[0031] Unless otherwise specified, in the present invention, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial" and the like indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0032] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "clamped" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the protection scope of the present invention.

Claims

1. A welding down-pressing mechanism, comprising an upper welding component and a down-pressing power; characterized in that The welding pressing mechanism is provided with a control component and a pressing component. The control component is provided with a control switch and an induction switch corresponding to the starting position and the pressing position. The control component controls the start or stop and the forward or reverse rotation of the pressing power. The pressing power cooperates with the pressing component through the pressing drive connecting piece to drive the pressing component to press down the welding component. The pressing component is provided with a reset lifting mechanism. The pressing power also serves as the driving power of the matching piece corresponding to the induction switch.

2. A welding pressing mechanism as claimed in claim 1, characterized in that The control component is provided with the control switch, the first induction switch and the second induction switch. The matching piece is a rotating matching piece, which is used to cooperate with the first induction switch and the second induction switch. The first induction switch and the second induction switch are arranged along the rotation path of the rotating matching piece. The first induction switch is used to stop the downward pressing power when the upper welding component is pressed down into place. The second induction switch stops the downward pressing power after the downward pressing power reverses and drives the downward pressing driving connecting piece to reset. The control switch is used to control the forward start of the lifting power, and the forward rotation corresponds to the rotation direction of the downward pressing power that presses down the upper welding component.

3. A welding pressing mechanism as claimed in claim 1, characterized in that The pressing assembly is rotatably connected to the base of the portable baler, and the pressing assembly includes a rotating frame, which is rotatably connected to the base, and a pressing member supported by an elastic mechanism is arranged on the rotating frame, and a component cooperating with the pressing driving connecting member is arranged on the rotating frame.

4. A welding pressing mechanism as claimed in claim 3, characterized in that The component that cooperates with the downward pressing driving connecting piece is a roller, and the downward pressing driving connecting piece adopts a rotating cam block, and the end of the rotating cam block is provided with a positioning concave arc structure that cooperates with the roller.

5. A welding pressing mechanism as claimed in claim 3, characterized in that The pressing assembly includes a bolt, the bolt head is located at the lower end as the pressing member, the bolt passes through the rotating frame and is slidably connected to the rotating frame, and an elastic mechanism for adjusting the force value of a nut threadedly connected to the bolt is arranged between the rotating frame and the bolt head.

6. A welding pressing mechanism as claimed in claim 3, characterized in that The downward pressing member is provided with a spherical shape to match the top surface of the upper welding component.

7. A welding pressing mechanism as claimed in claim 1, characterized in that The downward pressing power is connected to the downward pressing driving connecting piece through a reduction transmission mechanism. The reduction transmission mechanism adopts a gear meshing connection mechanism, whose first gear is connected to the downward pressing power, and whose second gear is connected to the downward pressing driving connecting piece. The first gear and the second gear are in transmission connection, and the matching piece corresponding to the induction switch is connected to the second gear.

8. A welding pressing mechanism as claimed in claim 7, characterized in that The pressing power is fixed on the first side of the base of the portable baler, and the transmission mechanism is located on the second side of the base; the pressing drive connecting piece is connected to the shaft of the second gear and is located on the first side of the base, and the upper welding assembly and the pressing assembly are located on the first side of the base.

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