Clamping opening mechanism of lifting claw furnace

Abstract

The utility model relates to a clamp opening mechanism of a lifting claw furnace. The clamp opening mechanism comprises a cross beam, a clamp opening assembly and a displacement assembly, the cross beam is fixedly installed in the lifting claw furnace, and the clamp opening assembly is arranged on the front side of the cross beam, used for opening a first clamp body and a second clamp body of the clamp and comprises a second driving piece, a clamp opening rotating rod, a first clamp opening piece, a clamping piece and a second clamp opening piece. The second driving piece drives the clamp opening rotating rod to rotate, the first clamp opening piece and the second clamp opening piece are driven to independently open clamp bodies on the two sides of the clamp respectively, and the clamping piece is used for balancing clamp opening force. The displacement assembly is arranged on the rear side of the cross beam and drives the rotating arm and the pushing arm through the first driving piece to drive the clamp opening assembly to move up and down to avoid the process space. Through a bidirectional clamp opening mechanism and automatic control, the problem that a traditional clamp opening mechanism is difficult to adapt to a high-density clamp is solved, efficient, accurate and stable bidirectional clamp opening operation is achieved, and production efficiency and equipment stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of hanging claw furnaces, specifically a hanging claw furnace opening mechanism. Background Technology

[0002] Traditional board drying processes employ a flat-lay drying method, which suffers from uneven drying, low space utilization, and low efficiency. To address these issues, the applicant proposed a suspended drying system (claw furnace) in patent CN115875955A. This system uses a clamp assembly to transport PCB boards to the drying mechanism, improving drying efficiency, space utilization, and automation. Simultaneously, it avoids contact between the PCB boards and other devices, thus enhancing the quality of the finished product.

[0003] However, during the implementation of this technical solution, it was found that its space utilization was still limited by the chain drive structure design. Specifically, each chain pitch could only clamp one PCB board, and the spacing between adjacent PCB boards was relatively large, leaving room for improvement in space utilization. Therefore, based on existing technology, the applicant redesigned the clamping structure as per announcement number CN221948473U (structure as follows). Figure 2 , 3 As shown in the figure, this fixture further compresses the spacing between adjacent PCB boards, thereby maximizing space utilization while maintaining the same drying effect.

[0004] Due to the change in the clamp structure, the traditional clamping mechanism for hanging claw furnaces is difficult to adapt to the new clamps' small spacing and the need for clamping in two directions. Therefore, there is an urgent need to develop an clamping mechanism adapted to this high-density suspension clamp to achieve efficient, precise, and stable bidirectional clamping operation within a limited space. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a clamping mechanism for a hanging claw furnace that is adapted to high-density suspension clamps. By using a bidirectional clamping mechanism, it solves the problem that traditional clamping devices are difficult to adapt to the small spacing of new clamps and require clamping in two directions, thereby achieving efficient, precise, and stable bidirectional clamping operations within a limited space.

[0006] To solve the above-mentioned technical problems, this utility model provides a lifting claw furnace opening mechanism, comprising:

[0007] The crossbeam is fixedly installed inside the hanging claw furnace;

[0008] The opening clamp assembly is arranged on the front side of the cross beam and is used for opening the first clamp body and the second clamp body of the clamp; the opening clamp assembly comprises a second driving member, an opening clamp rotating rod, first opening clamp members, a clamping member and second opening clamp members, the second driving member is arranged on one side of the cross beam and drives the opening clamp rotating rod to rotate, a plurality of groups of the first opening clamp members and the second opening clamp members which are mutually opened are fixedly arranged on the opening clamp rotating rod, under the driving of the second driving member, the opening clamp rotating rod can drive the first opening clamp members to open the first clamp body or can drive the second opening clamp members to open the second clamp body, the clamping member is arranged between each group of the first opening clamp members and the second opening clamp members and is used for clamping the clamp to balance the opening force of the first opening clamp members and the second opening clamp members.

[0009] The displacement assembly is arranged on the rear side of the cross beam and is used for driving the opening clamp assembly to displace upward and downward.

[0010] As some embodiments of the utility model, the displacement assembly comprises a first driving member, a rotating arm, a rotating shaft, a pushing arm, a pressing plate and a bearing seat, the first driving member is fixedly arranged on one side of the cross beam, the output end of the first driving member is connected to one end of the rotating arm, the other end of the rotating arm is fixedly connected with the rotating shaft and can drive the rotating shaft to rotate, the rotating shaft is rotatably connected with the cross beam, a plurality of pushing arms are fixedly arranged on the rotating shaft, the plurality of pushing arms pass through the cross beam and are connected to the same pressing plate, the pushing arms can drive the pressing plate to move upward and downward, a plurality of bearing seats are arranged on the front side of the pressing plate, the clamping member is fixedly arranged on the front side of the pressing plate, and the opening clamp rotating rod passes through the plurality of bearing seats and is rotatably connected with the plurality of bearing seats.

[0011] As some embodiments of the utility model, the displacement assembly further comprises a sliding member, the sliding member is arranged between the cross beam and the pressing plate, so that the pressing plate is slidably connected with the cross beam upward and downward.

[0012] As some embodiments of the utility model, a key groove is formed in the rotating shaft, and the rotating arm drives the rotating shaft to rotate through the key arranged in the key groove.

[0013] As some embodiments of the utility model, the pushing arm comprises a pressing arm, a transmission arm and a pressing seat, one end of the pressing arm is fixedly arranged on the rotating shaft, the other end of the pressing arm is hingedly connected with the upper end of the transmission arm, the lower end of the transmission arm is hingedly connected with the pressing seat, and the pressing seat is fixedly arranged on the rear side of the pressing plate.

[0014] As some embodiments of the utility model, the clamping member comprises a supporting plate and a clamp, the supporting plate is fixedly arranged on the pressing plate and passes through the opening clamp rotating rod, and the clamp is arranged below the opening clamp rotating rod and is fixedly connected with the supporting plate.

[0015] As some embodiments of the utility model, rollers are arranged on the first opening clamp members, the second opening clamp members and the clamp.

[0016] As some embodiments of the utility model, a pushing and embracing assembly is further arranged and is used for pushing the side embracing claws of the clamp.

[0017] As some embodiments of the utility model, push embrace assembly includes third drive, synchronous belt, synchronous rod, screw pair and pusher, third drive is fixedly arranged in the one side of crossbeam, third drive output end is connected with synchronous belt, the other side of synchronous belt is connected on synchronous rod, both ends of synchronous rod are connected with synchronous reverse movement screw pair, the screw pair drives the pusher of two sides to move respectively, pusher can push side embrace claw to close.

[0018] As some embodiments of the utility model, the first drive is a cylinder, and the second drive and the third drive are motors.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] 1. Efficient and stable bidirectional clamping operation is realized. The traditional mechanism can only clamp unidirectionally, and in a small spacing scenario, the clamping body is prone to rebound or jam due to uneven stress. The clamping assembly of the utility model drives the clamping rod through the second drive, drives the first clamping part and the second clamping part to open the clamping bodies on both sides of the clamp respectively, and the clamping part balances the clamping force on both sides through the limiting assembly block of the clamping clamp.

[0021] 2. Full automatic control improves production rhythm. The traditional clamping needs manual adjustment of the mechanism position, which is low in efficiency and poor in consistency. The displacement assembly drives the clamping assembly to displace accurately up and down through the first drive, avoiding the process space; the push embrace assembly realizes synchronous reverse closing control of the side embrace claw through the third drive and the synchronous belt-screw pair system. The linkage of various components realizes full automatic clamping, displacement and side embrace adjustment, shortens the production rhythm, and does not need manual intervention.

[0022] 3. The process adaptability is expanded to support multiple scene applications. The traditional clamping mechanism has single function and is difficult to adapt to different plate sizes or drying needs. The utility model can flexibly adapt to various types of clamps and plate specifications through the height adjustability of the displacement assembly, the controllability of the side embrace claw opening and closing range of the push embrace assembly (screw pair stroke is adjustable), and the bidirectional independent driving ability of the clamping assembly. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description are only one embodiment of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0024] Figure 1 It is a three-dimensional structure schematic view of the embodiment of the utility model.

[0025] Figure 2 It is a side view structural schematic diagram of the clamp in the embodiment of the utility model;

[0026] Figure 3 It is a partial three-dimensional structural schematic diagram of the clamp in the embodiment of the utility model;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the connection in the embodiment of the utility model;

[0028] Figure 5 It is a partial structural schematic diagram of the displacement assembly in the embodiment of the utility model;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the push arm in the embodiment of the utility model;

[0030] Figure 7 It is a partial three-dimensional structural schematic diagram of the opening clamp assembly in the embodiment of the utility model;

[0031] Figure 8 It is a schematic diagram of the clamp when the clamp holds the limiting assembly block in the embodiment of the utility model;

[0032] Figure 9 It is a three-dimensional structural schematic diagram of the push and embrace assembly in the embodiment of the utility model.

[0033] The marks in the drawing are: 1, cross beam; 2, displacement assembly; 21, first driving part; 22, rotating arm; 23, rotating shaft; 231, key groove; 24, push arm; 241, pressing arm; 242, transmission arm; 243, pressing seat; 25, pressing plate; 26, sliding part; 27, bearing seat; 3, opening clamp assembly; 31, second driving part; 32, opening clamp rotating rod; 33, first opening clamp part; 34, clamping part; 341, support plate; 342, clamp; 35, second opening clamp part; 4, push and embrace assembly; 41, third driving part; 42, synchronous belt; 43, synchronous rod; 44, screw pair; 45, pushing part; 9, clamp; 91, clamping beam; 92, clamping shaft; 921, fixed plate; 93, first clamping body; 94, second clamping body; 95, limiting assembly block; 96, side embracing claw. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the technical solutions in the specific embodiments of the utility model are described clearly and completely below to further illustrate the utility model. Obviously, the described specific embodiments are only a part of the embodiments of the utility model, not all the styles.

[0035] The embodiment is a hanging claw furnace opening clamp mechanism, as shown in Figure 1 , Figures 4-9 , the hanging claw furnace opening clamp mechanism is used for opening the structureFigure 2 、 Figure 3 The specific structure of the opening and closing mechanism of the clamp 9 is shown in the figure, which comprises:

[0036] The crossbeam 1 is fixedly installed in the tongs furnace;

[0037] The opening and closing assembly 3 is arranged on the front side of the crossbeam 1 and is used to open the first clamp body 93 and the second clamp body 94 of the clamp 9. It comprises a second driving member 31, an opening and closing rotating rod 32, a first opening and closing member 33, a clamping member 34 and a second opening and closing member 35. The second driving member 31 is arranged on one side of the crossbeam 1 and drives the opening and closing rotating rod 32 to rotate. A plurality of groups of the first opening and closing member 33 and the second opening and closing member 35 are fixedly arranged on the opening and closing rotating rod 32 and are mutually opened. Under the driving of the second driving member 31, the opening and closing rotating rod 32 can drive the first opening and closing member 33 to open the first clamp body 93 or can drive the second opening and closing member 35 to open the second clamp body 94. The clamping member 34 is located between each group of the first opening and closing member 33 and the second opening and closing member 35 and is used to clamp the clamp 9 to balance the opening and closing force of the first opening and closing member 33 and the second opening and closing member 35. In this embodiment, the second driving member 31 is a motor.

[0038] The displacement assembly 2 is arranged on the rear side of the crossbeam 1 and is used to drive the opening and closing assembly 3 to displace upward and downward.

[0039] In order to avoid the process space required by the plate and the clamp 9, the displacement assembly 2 of the present embodiment comprises a first driving member 21, a rotating arm 22, a rotating shaft 23, a pushing arm 24, a pressing plate 25 and a bearing seat 27. The first driving member 21 is fixedly arranged on one side of the crossbeam 1. The output end of the first driving member 21 is connected to one end of the rotating arm 22. The other end of the rotating arm 22 is fixedly connected to the rotating shaft 23 and can drive the rotating shaft 23 to rotate. The rotating shaft 23 is rotatably connected to the crossbeam 1. A plurality of pushing arms 24 are fixedly arranged on the rotating shaft 23. The plurality of pushing arms 24 pass through the crossbeam 1 and are connected to the same pressing plate 25. The pushing arm 24 can drive the pressing plate 25 to move upward and downward. A plurality of bearing seats 27 are arranged on the front side of the pressing plate 25. The clamping member 34 is fixedly arranged on the front side of the pressing plate 25. The opening and closing rotating rod 32 passes through the plurality of bearing seats 27 and is rotatably connected to the plurality of bearing seats 27. The first driving member 21 arranged on the side pushes the rotating shaft 23 to rotate. Then the pushing arm 24 pushes the pressing plate 25 to move upward and downward, so that the opening and closing assembly 3 can move downward when it is needed to open and close, and can move upward when the clamp 9 needs to pass. In this embodiment, the first driving member 21 is a pneumatic cylinder. In other embodiments of the present application, the first driving member 21 can also adopt a linear driving mechanism such as an electric push rod or a hydraulic cylinder.

[0040] In order to make the pressing plate 25 move upward and downward more smoothly and stably, the displacement assembly 2 further comprises a sliding member 26. The sliding member 26 is located between the crossbeam 1 and the pressing plate 25, so that the pressing plate 25 is slidably connected to the crossbeam 1 upward and downward.

[0041] The rotating shaft 23 is provided with a key groove 231, and the rotating arm 22 drives the rotating shaft 23 to rotate through a key located in the key groove 231. Of course, the rotating shaft 23 and the pushing arm 24 can be assembled in this way between the opening and clamping rotating rod 32 and the first opening and clamping member 33 and the second opening and clamping member 35.

[0042] The pushing arm 24 comprises a pressing arm 241, a transmission arm 242 and a pressing seat 243. One end of the pressing arm 241 is fixedly arranged on the rotating shaft 23, the other end of the pressing arm 241 is hingedly connected with the upper end of the transmission arm 242, the lower end of the transmission arm 242 is hingedly connected with the pressing seat 243, and the pressing seat 243 is fixedly arranged on the rear side of the pressing plate 25.

[0043] The clamping member 34 comprises a supporting plate 341 and a clamp 342. The supporting plate 341 is fixedly arranged on the pressing plate 25 and passes through the opening and clamping rotating rod 32, and the clamp 342 is located below the opening and clamping rotating rod 32 and is fixedly connected with the supporting plate 341.

[0044] Rollers are arranged on the first opening and clamping member 33, the second opening and clamping member 35 and the clamp 342.

[0045] The pushing and embracing assembly 4 is further arranged, which is used for pushing the side embracing claws 96 of the clamp 9.

[0046] The pushing and embracing assembly 4 comprises a third driving member 41, a synchronous belt 42, a synchronous rod 43, a screw pair 44 and a pushing member 45. The third driving member 41 is fixedly arranged on one side of the cross beam 1, the output end of the third driving member 41 is connected with the synchronous belt 42, the other side of the synchronous belt 42 is connected with the synchronous rod 43, the synchronous rod 43 is connected with the synchronous reverse motion screw pair 44 at both ends, the screw pair 44 drives the pushing member 45 on both sides to move, and the pushing member 45 can push the side embracing claws 96 to fold. In the embodiment, the third driving member 41 is a motor.

[0047] In order to better describe the use process of the opening and clamping mechanism of the hanging claw furnace, the structure of the clamp 9 is shown in Figure 2 、 Figure 3 The clamp 9 comprises a clamping beam 91, a clamping shaft 92, a fixed plate 921, a first clamping body 93, a second clamping body 94, a limiting assembly block 95 and a side embracing claw 96. The clamping shaft 92 is arranged on the clamping beam 91, the pair of first clamping body 93 and second clamping body 94 are arranged on the clamping shaft 92 and maintain clamping force through elastic members, the clamping shaft 92 is fixed on the clamping beam 91 through the fixed plate 921, the limiting assembly block 95 is located between the pair of first clamping body 93 and second clamping body 94, and is used for cooperating with the clamping member 34 to balance the opening and clamping force; the side embracing claws 96 on both sides of the clamping beam 91 are used for preventing adjacent plates from being close to each other to affect the process effect.

[0048] When the clamping mechanism of this hanging claw furnace is used, the first driving member 21 pushes the rotating arm 22, the rotating arm 22 drives the rotating shaft 23 to rotate, the rotating shaft 23 then drives the pressure arm 241 of the push arm 24 to rotate, the pressure arm 241 pushes the transmission arm 242 to move up and down, the transmission arm 242 pushes the pressure seat 243 to move up and down, the pressure seat 243 drives the pressure plate 25 to move up and down, the sliding member 26 provides support and guidance for the up and down movement of the pressure plate 25, the pressure plate 25 then drives the bearing seat 27 and the clamping member 34 to move up and down, the bearing seat 27 then drives the clamping rotating rod 32 to move up and down. During this process, the second driving member 31, the first clamping member 33 and the second clamping member 35 of the clamping assembly 3 will move up and down together. Therefore, in this embodiment, the second driving member 31 is fixed on the pressure plate 25, and the clamping member 34 can clamp the limiting assembly block 95 of the clamp 9 when it moves down.

[0049] The second driving member 31 drives the clamping rod 32 to rotate, and the clamping rod 32 drives the first clamping member 33 and the second clamping member 35 to rotate. The rotation of the first clamping member 33 can abut against and open the first clamping body 93, and the rotation of the second clamping member 35 can abut against and open the second clamping body 94. It can also be seen that the number of sets of the first clamping member 33 and the second clamping member 35 is the same as the number of sets of the first clamping body 93 and the second clamping body 94 in the fixture 9.

[0050] like Figure 9 As shown, when the clamping mechanism of the hanging claw furnace is at the feeding end, a push-holding component 4 is often set up. The third driving component 41 drives the synchronous belt 42 to rotate. The synchronous belt 42 drives the synchronous rod 43 to rotate. The rotation of the synchronous rod 43 drives the lead screw pairs 44 on both sides to move synchronously in opposite directions. The lead screw pairs 44 then drive the pushers 45 on both sides to open or close. When the pushers 45 close, they can push the side grippers 96 of the clamp 9 to close, thereby gripping the two sides of the plate on the clamp 9 and preventing adjacent plate parts from sticking to each other.

[0051] The main technical features, basic principles, and related advantages of this utility model have been described above. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the concept or basic characteristics of this utility model. Therefore, the above-described embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0052] In addition, it should be understood that, although the present specification is described in terms of various embodiments, not every embodiment need necessarily include every independent technical solution, and the present specification is described in this manner only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A tongs opening mechanism for a tongs furnace, characterized by comprising: The utility model relates to a kind of crane claw furnace, including: Crossbeam (1), fixedly installed in crane claw furnace; Open clamp component (3), is arranged in the front side of crossbeam (1), for opening the first clamp body (93) and second clamp body (94) of clamp (9); Including second driving element (31), open clamp rotary rod (32), first open clamp element (33), clamping element (34) and second open clamp element (35), second driving element (31) is arranged in one side of crossbeam (1) and drives open clamp rotary rod (32) rotation, open clamp rotary rod (32) is fixedly provided with a plurality of groups of first open clamp element (33) and second open clamp element (35) and mutually open, under the drive of second driving element (31), open clamp rotary rod (32) can drive first open clamp element (33) open first clamp body (93) or can drive second open clamp element (35) open second clamp body (94), clamping element (34) is located between each group of first open clamp element (33) and second open clamp element (35), for clamping clamp (9) to balance the force of first open clamp element (33) and second open clamp element (35) open clamp; Displacement component (2), is arranged in the back side of crossbeam (1), for driving open clamp component (3) displacement up and down.

2. A claw opening mechanism for a claw furnace according to claim 1, wherein The displacement component (2) includes first driving element (21), rotary arm (22), pivot (23), push arm (24), pressing plate (25) and bearing seat (27), the first driving element (21) is fixedly arranged in one side of crossbeam (1), the output end of first driving element (21) is connected in one end of rotary arm (22), the other end of rotary arm (22) is fixedly connected with pivot (23) and can drive pivot (23) rotation, pivot (23) is rotatably connected with crossbeam (1), pivot (23) is fixedly provided with a plurality of push arms (24), a plurality of push arms (24) pass through crossbeam (1) and are connected on the same pressing plate (25), push arm (24) can push pressing plate (25) and move up and down, the front side of pressing plate (25) is provided with a plurality of bearing seats (27), clamping element (34) is fixedly arranged on the front side of pressing plate (25), the open clamp rotary rod (32) passes through a plurality of bearing seats (27) and is rotatably connected with a plurality of bearing seats (27).

3. A claw opening mechanism for a claw furnace according to claim 2, wherein The displacement component (2) further includes sliding element (26), and the sliding element (26) is located between crossbeam (1) and pressing plate (25), so that pressing plate (25) is slidably connected with crossbeam (1) up and down.

4. A claw opening mechanism for a claw furnace according to claim 2, wherein Keyway (231) is opened on pivot (23), and rotary arm (22) drives pivot (23) rotation by key in keyway (231).

5. A claw opening mechanism for a claw furnace according to claim 2, wherein The push arm (24) includes pressure arm (241), transmission arm (242) and pressure seat (243), one end of the pressure arm (241) is fixedly arranged on the pivot (23), the other end of the pressure arm (241) is hinged with the upper end of the transmission arm (242), the lower end of the transmission arm (242) is hinged with the pressure seat (243), and the pressure seat (243) is fixedly arranged on the back side of the pressing plate (25).

6. A claw opening mechanism for a claw furnace according to claim 2, wherein The clamping element (34) includes support plate (341) and clamp (342), the support plate (341) is fixedly arranged on the pressing plate (25) and passes through the open clamp rotary rod (32), and the clamp (342) is located below the open clamp rotary rod (32) and is fixedly connected with the support plate (341).

7. A claw opening mechanism for a claw furnace according to claim 6, wherein Rollers are arranged on the first opening clamp (33), the second opening clamp (35) and the clamp (342).

8. A claw opening mechanism for a claw furnace according to claim 2, wherein The push-hold assembly (4) is arranged to push the side holding claws (96) of the clamp (9).

9. A claw opening mechanism for a claw furnace according to claim 8, wherein The push-hold assembly (4) comprises a third driving element (41), a synchronous belt (42), a synchronous rod (43), a screw rod pair (44) and a pushing element (45). The third driving element (41) is fixed to one side of the cross beam (1). The output end of the third driving element (41) is connected with the synchronous belt (42). The other side of the synchronous belt (42) is connected with the synchronous rod (43). The two ends of the synchronous rod (43) are connected with the screw rod pair (44) which moves reversely synchronously. The screw rod pair (44) drives the two pushing elements (45) to move. The pushing elements (45) can push the side holding claws (96) to close.

10. A claw opening mechanism for a claw furnace as defined in claim 9, wherein The first driving element (21) is a pneumatic cylinder. The second driving element (31) and the third driving element (41) are motors.

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