Single-side limiting frequency release device of safety high-cycle fusion welding machine

Abstract

The utility model provides a safety high cycle fusion welding machine unilateral limit frequency release device, which comprises a support and a driving arm, the support is provided with the driving arm, the driving arm comprises an inner driving arm and an outer driving arm, and the two sides of the inner driving arm and the outer driving arm are respectively provided with a limit part and a driven part. The side, close to the limiting part, of the inner driving arm and the side, close to the driven part, of the outer driving arm are rotationally connected with the support, the inner driving arm and the outer driving arm are oppositely arranged on the support, the limiting part can limit upward rotation of the driven part of the outer driving arm when the inner driving arm rotates downwards, the structure is simple, maintenance is convenient, and the service life is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of equipment interlocking device, specifically relates to a high safety high frequency welding machine single side limiting frequency release device. BACKGROUND

[0002] In double-station high-frequency heat sealing machine, two stations share the same high-frequency power supply, so it must be ensured that they do not work at the same time during use, therefore, interlocking device is adopted to avoid this situation, the interlocking device is a mechanical or electronic device used to prevent two stations from working at the same time, which can detect the working state of one station and prevent the other station from working, so as to ensure that only one station is working, thereby avoiding the situation that two stations work at the same time, which causes equipment failure and even product scrapping, and seriously affects the production efficiency and the service life of the high-frequency heat sealing machine.

[0003] As disclosed in the patent document with patent application number 201620047787.1 and publication date of August 17, 2016, an occupancy interlocking device includes two positionally opposite foot switches, the foot switch includes a foot pedal and an internal action arm, the foot pedal and the internal action arm are connected by a pivot to form a lever, a swing occupancy mechanism is provided between the two foot switches, the swing occupancy mechanism includes an occupancy arm, one end of the occupancy arm is a fixed end, and the other end is an arc-shaped movable end that can rotate around the fixed end; when one of the internal action arms rotates upward, it will push the arc-shaped movable end to invade the upward rotation space of the other internal action arm, preventing the other internal action arm from rotating upward, which can solve the problem of power stealing, is safe and reliable, and will not affect the production efficiency and the service life of the high-frequency heat sealing machine.

[0004] In the above document, the first internal action arm is pushed upward by stepping on the first pedal, thereby pushing the arc-shaped movable end to invade the upward rotation space of the second internal action arm, in the process of limiting the upward rotation of the second internal action arm, the arc-shaped movable end may have a small swing range, which cannot completely invade the upward rotation space of the second internal action arm, thereby causing the first internal action arm and the second internal action arm to rotate upward at the same time, which cannot realize the interlocking of the two, and will cause the two stations to work at the same time, resulting in equipment failure and affecting the production efficiency. SUMMARY

[0005] The utility model provides a kind of safety high frequency welding machine single side limiting frequency release device, can limit the swing range of driving arm, to improve service life.

[0006] The utility model discloses a high safety single side limiting frequency release device of high frequency welding machine, including support and drive arm, the support is provided with drive arm, the drive arm includes inner drive arm and outer drive arm, the both sides of inner drive arm and outer drive arm are provided with limiting portion and driven portion respectively, the side of inner drive arm close to limiting portion and the side of outer drive arm close to driven portion are rotatably connected with the support, and the inner drive arm and outer drive arm are oppositely arranged on the support, and the limiting portion will limit the driven portion of outer drive arm to rotate upward when the inner drive arm rotates downward.

[0007] The above arrangement, the support is provided with the inner drive arm and the outer drive arm, and the inner drive arm and the outer drive arm rotate on the support, and the inner drive arm and the outer drive arm are respectively provided with the limiting portion and the driven portion, since the inner drive arm and the outer drive arm are oppositely arranged on the support, so when the limiting portion of the inner drive arm rotates downward, it will limit the moving range of the outer drive arm, and the limiting portion of the outer drive arm will also limit the moving range of the inner drive arm, when the limiting portion of the inner drive arm rotates downward, it will drive the driven portion of the outer drive arm to rotate downward, and then limit the driven portion of the outer drive arm to rotate upward, forming the lever principle, so that the inner drive arm and the outer drive arm are interlocked, so that the rotating range of the drive arm can be limited, thereby preventing the drive arm from rotating too large range and being damaged, and improving the service life.

[0008] Further, the inner drive arm and the outer drive arm are respectively provided with a connecting hole and a guide waist groove, the support is provided with a fixed shaft and a limiting shaft, the fixed shaft is rotatably connected with the drive arm through the connecting hole, and the limiting shaft is fixed on the support and movably connected with the drive arm through the guide waist groove.

[0009] The above arrangement, the inner drive arm and the outer drive arm are rotatably connected with the support through the guide waist groove, and the drive arm can move within the range limited by the connecting hole and the limiting shaft, so as to limit the rotating range of the drive arm.

[0010] Further, the limiting portion of the inner drive arm abuts against the upper end of the outer drive arm, and the driven portion of the outer drive arm abuts against the upper end of the inner drive arm.

[0011] The above arrangement, when the limiting portion of the inner drive arm rotates downward, the driven portion of the inner drive arm will rotate upward, and drive the driven portion of the outer drive arm to rotate downward, since the outer drive arm rotates along the guide waist groove area, the limiting portion of the outer drive arm will rotate upward and abut against the inner drive arm, and then the limiting portion of the inner drive arm can limit the driven portion of the outer drive arm to rotate upward, and the position of the limiting portion of the outer drive arm can also be ensured by the inner drive arm, so that the driven portion of the inner drive arm is higher than the limiting portion of the inner drive arm, and the limiting portion of the outer drive arm is higher than the driven portion of the outer drive arm.

[0012] Further, the cross section of the drive arm is triangular structure.

[0013] The above arrangement, the driving arm presents a triangular structure with greater load-bearing, to ensure the stability of the driving arm when running, when the driving arm with fixed shaft as the fixed point along the guide waist groove area rotation, the driving arm will tilt along the guide waist groove direction, so as to achieve the driving arm in the process of moving, the control of driving arm limiting part and driven part.

[0014] Further, the driving arm limiting part and the driven part are horizontally arranged.

[0015] The above arrangement, the horizontal arrangement of the driving arm limiting part and the driven part, when the driving arm limiting part rotates downward, the driving arm driven part will rotate upward, through the synchronous rotation arrangement, to ensure that when the driving arm limiting part is located below, the driving arm driven part is located above.

[0016] Further, the lower side of the driving arm is provided with a mounting hole.

[0017] The above arrangement, the mounting hole is arranged on the lower side of the driving arm, which can be used to connect the driving device, such as cylinder, for driving the driving arm to move along the guide waist groove direction.

[0018] Further, the driven part is provided with a through hole.

[0019] The above arrangement, the driven part is provided with a through hole, which is used to connect the high-frequency contact device, when the driven part rotates upward, the high-frequency contact device is driven to move, so as to realize the connection of high-frequency power supply, when the driven part rotates downward, the high-frequency contact device is driven to move, so as to realize the disconnection of high-frequency power supply.

[0020] Further, the fixed shaft is provided with a first limiting block and a second limiting block, the first limiting block is arranged between the support and the inner driving arm, and the second limiting block is arranged between the inner driving arm and the outer driving arm.

[0021] The above arrangement, the fixed shaft is provided with a first limiting block and a second limiting block, the first limiting block is arranged between the support and the inner driving arm, and the second limiting block is arranged between the inner driving arm and the outer driving arm.

[0022] Further, the driving arm includes a driving arm body, and the upper end of the driving arm body is outwardly provided with a limiting part and a driven part respectively.

[0023] The above arrangement, the limiting part and the driven part are formed by outward extension of the driving arm body, which has simple structure and can form an integral with the driving arm body. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a side view of the present invention.

[0026] Figure 3 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0027] Figure 4 This is a schematic diagram of the drive arm structure in this utility model.

[0028] Figure 5 This is a partial exploded view of the present invention.

[0029] Reference numerals: 1-Bracket; 11-Fixed shaft; 111-First limiting block; 112-Second limiting block; 12-Limiting shaft; 2-Drive arm; 20-Drive arm body; 21-Inner drive arm; 22-Outer drive arm; 23-Connecting hole; 24-Guide groove; 25-Mounting hole; 26-Limiting part; 261-Bending part; 27-Driven part; 271-Through hole; Detailed Implementation

[0030] like Figures 1-5As shown, a single-sided limiting frequency release device for a high-frequency welding machine is used on the welding machine and connected to the machine's drive device and high-frequency contact equipment. It includes a bracket 1 and a drive arm 2. The bracket 1 is equipped with the drive arm 2, which includes an inner drive arm 21 and an outer drive arm 22. Limiting portions 26 and driven portions 27 are respectively provided on both sides of the drive arm 2. The drive arm 2 is provided with a connecting hole 23 and a guide groove 24. The bracket 1 is equipped with a fixed shaft 11 and a limiting shaft 12. The fixed shaft 11 is rotatably connected to the drive arm 2 through the connecting hole 23, and the limiting shaft 12 is movablely connected to the drive arm 2 through the guide groove 24. The inner drive arm 21 and the outer drive arm 22 are arranged facing each other on the bracket 1. When the inner drive arm 21 rotates downwards, its limiting portion 26 restricts the driven portion 27 of the outer drive arm 22 from rotating upwards. The bracket 1 is equipped with an inner drive arm 21 and an outer drive arm 22. The inner drive arm 21 and the outer drive arm 22 rotate along the guide groove 24 region with the fixed shaft 11 as the fixed point. The inner drive arm 21 and the outer drive arm 22 are respectively provided with a limiting part 26 and a driven part 27. Since the inner drive arm 21 and the outer drive arm 22 are arranged facing each other on the bracket 1, the limiting part 26 of the inner drive arm 21 will restrict the movement range of the outer drive arm 22, and the limiting part 26 of the outer drive arm 22 will also restrict the movement range of the inner drive arm 21. When the limiting part 26 of the inner drive arm 21 rotates downward, it will drive the driven part 27 of the outer drive arm 22 to rotate downward, thereby restricting the driven part 27 of the outer drive arm 22 to rotate upward, forming a lever principle, thus forming an interlock between the inner drive arm 21 and the outer drive arm 22.

[0031] like Figures 1-3 As shown, when the limiting part 26 of the inner drive arm 21 rotates downward, the limiting part 26 of the outer drive arm 22 rotates upward and abuts against the inner drive arm 21. When the limiting part 26 of the inner drive arm 21 rotates downward, the driven part 27 of the inner drive arm 21 rotates upward and drives the driven part 27 of the outer drive arm 22 to rotate downward. The drive arm 2 includes a drive arm body 20, the upper end of which extends upward to form a limiting part and a driven part. When the driven part 27 of the inner drive arm 21 rotates upward, the limiting part 26 of the inner drive arm 21 rotates downward. When the limiting part 26 of the inner drive arm 21 rotates downward and abuts against the driving part 26 of the outer drive arm 22, the limiting part 26 of the outer drive arm 22 rotates downward and abuts against the inner drive arm 21. When the upper surfaces of the bodies 20 abut against each other, the limiting part 26 restricts the outer drive arm 27 from continuing to rotate upward. Since the outer drive arm 22 rotates along the guide groove 24 area, the limiting part 26 of the outer drive arm 22 will rotate upward and abut against the inner drive arm 21. Thus, the limiting part 26 of the inner drive arm 21 can restrict the upward rotation of the driven part 27 of the outer drive arm 22. The inner drive arm 21 can also ensure the position of the limiting part 26 of the outer drive arm 22, so that the driven part 27 of the inner drive arm 21 is higher than the limiting part 26 of the inner drive arm 21, and the limiting part 26 of the outer drive arm 22 is higher than the driven part 27 of the outer drive arm 22. The cross-section of the guide groove 24 is arc-shaped.

[0032] likeFigure 4 As shown, the driving arm 2 is in a triangular structure, which has a large load-bearing capacity, ensuring the stability of the driving arm 2 during operation. When the driving arm 2 rotates around the fixed shaft 11 as the reference point along the guide waist groove 24 area, the driving arm 2 will tilt in the direction of the guide waist groove 24, so as to achieve the control of the limiting portion 26 and the driven portion 27 of the driving arm 2 during movement.

[0033] The limiting portion 26 and the driven portion 27 of the driving arm 2 are horizontally arranged. When the limiting portion 26 of the driving arm 2 rotates downward, the driven portion 27 of the driving arm 2 will rotate upward. Through the synchronous rotation arrangement, it is ensured that when the limiting portion 26 of the driving arm 2 is located below, the driven portion 27 of the driving arm 2 is located above.

[0034] The lower side of the driving arm 2 is provided with a mounting hole 25, which can be used to connect a driving device such as a cylinder for driving the driving arm 2 to move along the direction of the guide waist groove 24.

[0035] The driven portion 27 is provided with a through hole 271 for connecting a high-frequency contact device. When the driven portion 27 rotates upward, it drives the high-frequency contact device to move, so as to realize the connection of the high-frequency power supply. When the driven portion 27 rotates downward, it drives the high-frequency contact device to move, so as to realize the disconnection of the high-frequency power supply.

[0036] As shown in Figure 4 and Figure 5 The fixed shaft 11 is provided with a first limiting block 111 and a second limiting block 112. The first limiting block 111 is arranged between the bracket 1 and the inner driving arm 21, and the second limiting block 112 is arranged between the inner driving arm 21 and the outer driving arm 22. The fixed shaft 11 penetrates the first limiting block 111 and the second limiting block 112. The first limiting block 111 is arranged between the bracket 1 and the inner driving arm 21, which separates the bracket 1 and the inner driving arm 21, so as to reduce the wear and friction. The second limiting block 112 is arranged between the inner driving arm 21 and the outer driving arm 22, so that there is a gap between the inner driving arm 21 and the outer driving arm 22. Since the driving arm is connected to the limiting portion 26 at the bending portion 261, the gap between the inner driving arm 21 and the outer driving arm 22 enables the limiting portion 26 of the inner driving arm 21 to avoid the bending portion 261 when limiting the outer driving arm 22, so that the limiting portion 26 has a better limiting effect.

[0037] The utility model discloses a working principle: support 1 is provided with fixed shaft 11, and the both sides of fixed shaft 11 are provided with limit shaft 12 respectively, and fixed shaft 11 is provided with first limit block 111, and inner drive arm 21 connecting hole 23 is connected with fixed shaft 11, and inner drive guiding waist groove 24 is connected with limit shaft 12, and second limit block 112 is set up in one side of inner drive part connecting hole 23, and then outer drive arm 22 connecting hole 23 is connected with fixed shaft 11, and outer drive guiding waist groove 24 is connected with limit shaft 12, and inner drive arm 21 and outer drive arm 22 are set up towards, and still be provided with mounting hole 25 on the downside of drive arm, and mounting hole 25 can be used for connecting drive equipment, such as cylinder, is used for driving drive arm to move along the direction of guiding waist groove 24, when inner drive arm 21 limit part 26 rotates downward, will drive outer drive arm 22 driven part 27 to rotate downward, and then limit outer drive arm 22 driven part 27 to rotate upward, form lever principle, to form interlock between inner drive arm 21 and outer drive arm 22.

Claims

1. A single-sided limit frequency release device for a high-safety high-frequency welding machine, characterized in that: The application relates to a driving arm device, which comprises a support and driving arms, the support is provided with the driving arms, the driving arms comprise inner driving arms and outer driving arms, the two sides of the driving arms are respectively provided with limiting portions and driven portions, the two sides of the inner driving arms and the outer driving arms are respectively provided with limiting portions and driven portions, the side of the inner driving arms close to the limiting portions and the side of the outer driving arms close to the driven portions are rotationally connected with the support, the inner driving arms and the outer driving arms are oppositely arranged on the support, and the limiting portions of the inner driving arms can limit the driven portions of the outer driving arms from upward rotation when the inner driving arms are downward rotated.

2. The single side limiting frequency release device of high-frequency welding machine with high safety according to claim 1, characterized in that: Connecting holes and guide waist grooves are respectively arranged on the inner driving arms and the outer driving arms, the support is provided with a fixing shaft and a limiting shaft, the fixing shaft is rotationally connected with the driving arms through the connecting holes, and the limiting shaft is fixed on the support and movably connected with the driving arms through the guide waist grooves.

3. The single side limiting frequency release device of high-frequency welding machine with high safety according to claim 1, characterized in that: The limiting portions of the inner driving arms abut against the upper ends of the outer driving arms, and the driven portions of the outer driving arms abut against the upper ends of the inner driving arms.

4. The single side limiting frequency release device of high frequency welding machine with high security according to claim 2, characterized in that: The driving arms are triangular in cross section, and the guide waist grooves are arc-shaped in cross section.

5. The high-frequency welding machine single-side limiting frequency release device with high safety according to claim 1, characterized in that: The limiting portions and the driven portions of the driving arms are horizontally arranged.

6. The high-frequency welding machine single-side limiting frequency release device with high safety according to claim 1, characterized in that: Mounting holes are arranged on the lower sides of the driving arms.

7. The high-frequency welding machine single-side limiting frequency release device with high safety according to claim 1, characterized in that: The driven portions are provided with through holes.

8. The high-frequency welding machine single-side limiting frequency release device with high safety according to claim 2, characterized in that: The fixing shaft is provided with first limiting blocks and second limiting blocks, the first limiting blocks are arranged between the support and the inner driving arms, and the second limiting blocks are arranged between the inner driving arms and the outer driving arms.

9. The high-frequency welding machine single-side limiting frequency device with high safety according to claim 1, characterized in that: The driving arms comprise driving arm bodies, and the upper ends of the driving arm bodies are outwardly provided with limiting portions and driven portions.

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