Pressure maintaining machine

Abstract

The utility model relates to a pressure maintaining machine which comprises a machine frame, a pressure maintaining platform, a pressure head assembly and a coil stock buffering mechanism. The pressure maintaining platform is arranged on the rack and used for containing workpieces. The pressure head assembly comprises a driving part and a pressure head, the pressure head is arranged above the pressure maintaining platform, the driving part is arranged on the rack, and the driving part is connected with the pressure head and used for driving the pressure head to move downwards to be close to or move upwards to be away from the pressure maintaining platform. The roll material buffering mechanism comprises a connecting plate, an unwinding shaft, a winding shaft, two pressing rollers and a buffering cushion, the unwinding shaft, the winding shaft and the two pressing rollers are all rotatably arranged on the connecting plate, one end of the buffering cushion is wound around the unwinding shaft, the other end of the buffering cushion is connected with the winding shaft, and the part, between the unwinding shaft and the winding shaft, of the buffering cushion sequentially passes through the two pressing rollers. And a flattening part is formed between the two compression rollers. When pressure maintaining is conducted on the workpiece on the pressure maintaining platform, the pressing head is driven by the driving piece to be close to the pressure maintaining platform, and the flattened part of the buffering cushion is pressed on the surface of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, and particularly relates to a press machine for pressure maintaining. Background Art

[0002] In the processing and forming process of some products, different workpieces need to be produced separately first, and then the different workpieces are assembled together by adhesion. To ensure the adhesion effect, the workpieces are usually pressure-maintained, that is, a certain intensity and a certain time of pressure are applied to the workpieces, so as to improve the adhesion effect between the workpieces.

[0003] The existing pressure-maintaining equipment usually includes a pressure head and a driving member, and the driving member is used to drive the pressure head to move down or up. When in use, different components are stacked on the platform below the pressure head first, and then the driving member is made to drive the pressure head to descend, so that the pressure head presses on the surface of the workpiece to perform pressure maintaining on the workpiece. After the pressure maintaining is completed, the driving member drives the pressure head to reset, facilitating the subsequent removal of the product.

[0004] However, the direct pressing of the pressure head on the surface of the workpiece may cause scratches or indentations on the surface of the workpiece, affecting the yield. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a press machine for pressure maintaining, and the technical problem to be solved is: how to reduce the scratches and indentations on the surface of the workpiece and improve the yield.

[0006] To solve the above technical problem, the utility model adopts the following technical scheme.

[0007] The utility model provides a press machine for pressure maintaining, which comprises: a frame; a pressure-maintaining platform arranged on the frame and used for placing workpieces; a pressure head assembly, the pressure head assembly includes a driving member and a pressure head, the pressure head is arranged above the pressure-maintaining platform, the driving member is arranged on the frame, the driving member is connected with the pressure head and is used to drive the pressure head to move down close to or move up away from the pressure-maintaining platform; a coiled material buffering mechanism, the coiled material buffering mechanism includes a connecting plate, a material unwinding shaft, a material winding shaft, a pressure roller and a buffer pad, the connecting plate is arranged above the pressure-maintaining platform, there are two pressure rollers, the material unwinding shaft, the material winding shaft and the two pressure rollers are rotatably arranged on the connecting plate, one end of the buffer pad is wound around the material unwinding shaft, and the other end of the buffer pad is connected with the material winding shaft, the part of the buffer pad between the material unwinding shaft and the material winding shaft passes through the two pressure rollers in sequence and forms a flattened part between the two pressure rollers, and the flattened part is parallel or substantially parallel to the surface of the workpiece; when performing pressure maintaining on the workpiece on the pressure-maintaining platform, the pressure head is driven by the driving member to approach the pressure-maintaining platform and presses the flattened part of the buffer pad on the surface of the workpiece.

[0008] In some embodiments of the present application, the coil buffer mechanism further includes a coil driving member, the output end of the coil driving member is in transmission connection with the unwinding shaft or the winding shaft, and the unwinding shaft and the winding shaft are in transmission connection through a synchronous belt.

[0009] In some embodiments of the present application, the coil buffer mechanism further includes a guide roller, the guide roller is rotatably arranged on the connecting plate, and the guide roller is used to guide the movement of the buffer pad between the unwinding shaft and the pressure roller and between the winding shaft and the pressure roller.

[0010] In some embodiments of the present application, the connecting plate is provided with a connecting column and a connecting hole penetrating through both sides of the connecting plate. The guide roller includes a roller rod and a roller body. The roller rod passes through the connecting hole, one end of the roller rod is connected to the connecting column through an elastic member, and the other end of the roller rod is rotatably sleeved with the roller body.

[0011] In some embodiments of the present application, the pressure head assembly further includes a base, the base is connected to the frame and is provided with a slide rail, and the pressure head is provided with a slider cooperating with the slide rail; the driving member includes a fixed part and a movable part, the fixed part is connected to the base, the movable part is movably connected to the fixed part, and the movable part is connected to the pressure head.

[0012] In some embodiments of the present application, the connecting plate is connected to the base, the unwinding shaft and the winding shaft are arranged side by side and spaced apart at the upper end of the connecting plate, the two pressure rollers are arranged between the unwinding shaft and the winding shaft, and the two pressure rollers are arranged side by side and spaced apart at the lower end of the connecting plate; the driving member drives the pressure head to move between the unwinding shaft and the winding shaft.

[0013] In some embodiments of the present application, the pressure head includes a first pressure head and a second pressure head arranged side by side and spaced apart. The first pressure head is a cold pressure head, and the second pressure head is a hot pressure head; the driving member includes a first driving member and a second driving member, the first driving member is connected to the first pressure head, and the second driving member is connected to the second pressure head.

[0014] In some embodiments of the present application, the pressure maintaining platform includes a stacked first platform, a second platform and a vacuum adsorption platform. The first platform is movably arranged on the frame, the second platform is movably arranged on the first platform, the vacuum adsorption platform is arranged on the second platform, and the vacuum adsorption platform is provided with adsorption holes.

[0015] In some embodiments of the present application, the material of the buffer pad is silica gel.

[0016] It can be seen from the above technical solutions that the embodiments of the present utility model have at least the following advantages and positive effects:

[0017] In the press of the embodiment of the present utility model, first place the workpiece on the pressure-holding platform, and make the unwinding reel rotate to unwind the buffer pad. The unwound buffer pad reaches the pressure roller, and the remaining material of the buffer pad is collected by the winding reel through rotation. Through the coordinated action of the unwinding reel, the pressure roller and the winding reel, it can be ensured that a flattened portion parallel or substantially parallel to the surface of the workpiece can be formed between the two pressure rollers by the buffer pad, providing preparation for the subsequent pressure-holding operation. Subsequently, make the driving member start to work, and the driving member drives the pressure head to move downward close to the pressure-holding platform. Since the workpiece is placed on the pressure-holding platform and the flattened portion of the buffer pad is located between the pressure head and the workpiece, the pressure head will press on the flattened portion during the moving process, so that the workpiece on the pressure-holding platform can be pressure-held through the buffer pad. The existence of the buffer pad avoids the direct contact between the pressure head and the surface of the workpiece, reduces the risk of scratching and indentation, and thus improves the yield rate. After the pressure-holding is completed, make the driving member drive the pressure head to move upward away from the buffer pad, facilitating the subsequent taking out of the finished workpiece.

[0018] Furthermore, the buffer pad may be worn under the pressing of the pressure head. To ensure the smooth progress of the subsequent pressure-holding work, it is necessary to replace the buffer pad according to the usage situation. Since the buffer pad is wound between the unwinding reel and the winding reel, the replacement of the buffer pad and the collection of the remaining material can be completed by rotation, which is more rapid and convenient in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By considering the following detailed description of the preferred embodiments of the present utility model in conjunction with the accompanying drawings, various objectives, features and advantages of the present utility model will become more obvious. The drawings are only exemplary diagrams of the present utility model and are not necessarily drawn to scale. In the drawings, the same reference numerals always represent the same or similar components. Among them:

[0020] Figure 1 is a schematic structural diagram of a press shown according to an exemplary embodiment.

[0021] Figure 2 is Figure 1 a schematic structural diagram of the coil buffer mechanism in

[0022] Figure 3 is Figure 1 a working schematic diagram of the coil buffer structure in

[0023] Figure 4 is Figure 2 a schematic structural diagram of another perspective of

[0024] Figure 5 is Figure 1 a schematic structural diagram of the pressure head assembly in

[0025] Figure 6 isFigure 1 Schematic structural diagram of the medium pressure-holding platform.

[0026] The reference numerals are explained as follows:

[0027] 1. Frame;

[0028] 2. Pressure-holding platform; 21. First platform; 22. Second platform; 23. Vacuum adsorption platform; 231. Adsorption holes;

[0029] 31. Driving member; 311. First driving member; 312. Second driving member; 32. Pressing head; 321. First pressing head; 322. Second pressing head; 323. Slide block; 33. Base; 331. Slide rail;

[0030] 41. Connecting plate; 411. Connecting column; 412. Connecting hole; 42. Pay-off reel; 43. Take-up reel; 44. Pressing roller; 45. Coil driving member; 46. Guide roller; 461. Roller rod; 462. Roller body; 47. Elastic member; 48. Buffer pad;

[0031] 5. Workpiece. Detailed implementation manners

[0032] Although the present utility model can be easily embodied in different forms of embodiments, only some specific embodiments are shown in the drawings and will be described in detail in this specification. At the same time, it can be understood that this specification should be regarded as a demonstration of the principles of the present utility model and is not intended to limit the present utility model to what is described herein.

[0033] Thus, a feature pointed out in this specification will be used to illustrate one of the features of one embodiment of the present utility model, rather than implying that each embodiment of the present utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to show possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0034] In the embodiments shown in the drawings, the indication of directions (such as up, down, left, right, front and back) is used to explain that the structures and movements of various elements of the present utility model are not absolute but relative. When these elements are in the positions shown in the drawings, these explanations are appropriate. If the descriptions of the positions of these elements change, then the indication of these directions also changes accordingly.

[0035] Please refer to Figures 1 to 3, a press provided by an embodiment of the present utility model mainly includes a frame 1, a press platform 2, a punch assembly, and a coil buffer mechanism. The press platform 2 is disposed on the frame 1 and is used for placing a workpiece 5. The punch assembly includes a driving member 31 and a punch 32. The punch 32 is disposed above the press platform 2. The driving member 31 is disposed on the frame 1. The driving member 31 is connected to the punch 32 and is used to drive the punch 32 to move downward close to or upward away from the press platform 2. The coil buffer mechanism includes a connecting plate 41, a pay-off reel 42, a take-up reel 43, a pressure roller 44, and a buffer pad 48. The connecting plate 41 is disposed above the press platform 2. There are two pressure rollers 44. The pay-off reel 42, the take-up reel 43, and the two pressure rollers 44 are rotatably disposed on the connecting plate 41. One end of the buffer pad 48 is wound around the pay-off reel 42, and the other end of the buffer pad 48 is connected to the take-up reel 43. The portion of the buffer pad 48 between the pay-off reel 42 and the take-up reel 43 passes through the two pressure rollers 44 in sequence and forms a flattened portion between the two pressure rollers 44. The flattened portion is parallel or substantially parallel to the surface of the workpiece 5. When pressing the workpiece 5 on the press platform 2, the punch 32 is driven by the driving member 31 to approach the press platform 2, and the flattened portion of the buffer pad 48 is pressed on the surface of the workpiece 5.

[0036] In the press of the embodiment of the present utility model, first, the workpiece 5 is placed on the press platform 2. The pay-off reel 42 is rotated to release the buffer pad 48. The released buffer pad 48 reaches the pressure roller 44, and the surplus material of the buffer pad 48 is collected by the take-up reel 43 through rotation. Through the coordinated action of the pay-off reel 42, the pressure roller 44, and the take-up reel 43, it can be ensured that the buffer pad 48 can form a flattened portion parallel or substantially parallel to the surface of the workpiece 5 between the two pressure rollers 44, providing preparation for subsequent pressing operations. Subsequently, the driving member 31 is started to work. The driving member 31 drives the punch 32 to move downward close to the press platform 2. Since the workpiece 5 is placed on the press platform 2 and the flattened portion of the buffer pad 48 is located between the punch 32 and the workpiece 5, the punch 32 will press on the flattened portion of the buffer pad 48 during the movement process, so that the workpiece 5 on the press platform 2 can be pressed through the buffer pad 48. The presence of the buffer pad 48 avoids the punch 32 directly contacting the surface of the workpiece 5, reducing the risk of scratches and indentations, thereby improving the yield. After the pressing is completed, the driving member 31 is used to drive the punch 32 to move upward away from the buffer pad 48, facilitating the subsequent removal of the finished workpiece 5.

[0037] Further, the buffer pad 48 may be worn under the pressing of the punch 32. To ensure the smooth progress of subsequent pressing work, the buffer pad 48 needs to be replaced according to the usage situation. Since the buffer pad 48 is wound between the pay-off reel 42 and the take-up reel 43, the replacement of the buffer pad 48 and the collection of surplus material can be completed by rotation, which is more rapid and convenient in operation.

[0038] For example, the connecting plate 41 is provided with mounting holes. The unwinding roller 42 and the winding roller 43 both include a rod portion and a shaft portion. The shaft portion is sleeved outside the rod body, and the rod portion is rotatably inserted into the mounting holes. For example, the pressing roller 44 includes a rod body and a body. The connecting plate 41 is further provided with locking holes. The rod body is locked in the locking holes, and the body is rotatably sleeved outside the rod body.

[0039] Please refer to Figure 2 , the coil buffer mechanism further includes a coil driving member 45. The output end of the coil driving member 45 is connected to the unwinding roller 42 or the winding roller 43, and the unwinding roller 42 and the winding roller 43 are connected by a synchronous belt. The setting of the synchronous belt realizes the synchronous rotation between the unwinding roller 42 and the winding roller 43, ensures the consistency of unwinding and winding, makes the process of unwinding, unfolding and winding of the buffer pad 48 smoother, and only one coil driving member 45 needs to be set as the power source in the synchronous transmission mode, saving costs. In this embodiment, the coil driving member 45 is a rotary motor.

[0040] Please refer to Figures 2 to 4 , the coil buffer mechanism further includes a guide roller 46. The guide roller 46 is rotatably arranged on the connecting plate 41. The guide roller 46 is used to guide the movement of the buffer pad 48 between the unwinding roller 42 and the pressing roller 44 and between the winding roller 43 and the pressing roller 44. The guide roller 46 can increase the fulcrum, avoid excessive tension of the buffer pad 48, and the guiding effect of the guide roller 46 enables the buffer pad 48 to move more smoothly, thereby reducing the friction and wear of the buffer pad 48 during the movement process and improving the service life of the buffer pad 48.

[0041] Please refer to Figure 4 , the coil buffer mechanism further includes an elastic member 47. The connecting plate 41 is provided with a connecting post 411 and a connecting hole 412 penetrating both sides of the connecting plate 41. The guide roller 46 includes a roller rod 461 and a roller body 462. The roller rod 461 passes through the connecting hole 412. One end of the roller rod 461 is connected to the connecting post 411 through the elastic member 47, and the other end of the roller rod 461 is rotatably sleeved with the roller body 462. The roller body 462 is used to flatten the buffer pad 48. During the process that the pressing head 32 presses on the buffer pad 48, the roller body 462 will drive the roller rod 461 to rotate slightly relative to the connecting plate 41. Since one end of the roller rod 461 is connected to the connecting post 411 through the elastic member 47, the deformation of the elastic member 47 provides a reaction force, and the reaction force provides a buffering effect, reducing the impact on the guide roller 46.

[0042] In an embodiment where one end of the roller rod 461 is connected to the connecting post 411 through the elastic member 47 and the other end of the roller rod 461 is rotatably sleeved with the roller body 462, the connecting post 411 is provided with a first through hole, the other end of the roller rod 461 is provided with a second through hole, and the elastic member 47 is a tension spring. The hooks at both ends of the tension spring are respectively hooked on the first through hole and the second through hole.

[0043] Please refer to Figure 5 As shown, the indenter assembly further includes a base 33. The base 33 is connected to the frame 1 and is provided with a slide rail 331. The indenter 32 is provided with a slider 323 that cooperates with the slide rail 331. The driving member 31 includes a fixed portion and a movable portion. The fixed portion is connected to the base 33, the movable portion is movably connected to the fixed portion, and the movable portion is connected to the indenter 32. Through the arrangement of the fixed portion and the movable portion of the driving member 31, the control of the indenter 32 is realized, and the cooperation of the slide rail 331 and the slider 323 ensures the smoothness and accuracy of the movement of the indenter 32. In this embodiment, the base 33 is supported on the frame 1.

[0044] Please refer to Figures 1 to 5 As shown, a connecting plate 41 is connected to the base 33. The unwinding reel 42 and the winding reel 43 are arranged side by side and at intervals at the upper end of the connecting plate 41. Two pressing rollers 44 are arranged between the unwinding reel 42 and the winding reel 43, and the two pressing rollers 44 are arranged side by side and at intervals at the lower end of the connecting plate 41. The driving member 31 drives the indenter 32 to move between the unwinding reel 42 and the winding reel 43. The arrangement of the unwinding reel 42, the winding reel 43 and the pressing rollers 44 can ensure that the buffer pad 48 is evenly flattened between the unwinding reel 42 and the winding reel 43. On the other hand, the positions and cooperation of the unwinding reel 42, the winding reel 43, the pressing rollers 44 and the connecting plate 41 make the space utilization rate of the equipment higher and the structure more compact.

[0045] Please refer to Figure 5 As shown, in this embodiment, the indenter 32 includes a first indenter 321 and a second indenter 322 arranged side by side and at intervals. The first indenter 321 is a cold indenter 32, and the second indenter 322 is a hot indenter 32. The driving member 31 includes a first driving member 311 and a second driving member 312. The first driving member 311 is connected to the first indenter 321, and the second driving member 312 is connected to the second indenter 322. The arrangement of the first indenter 321 and the second indenter 322 realizes the functions of cold pressing and hot pressing to meet the pressure-holding requirements of different workpieces 5. The first driving member 311 and the second driving member 312 can realize the independent control of different indenters 32, so that the appropriate indenter 32 can be selected for work according to needs. In this embodiment, both the first driving member 311 and the second driving member 312 are cylinders.

[0046] Please refer to Figure 6, the pressure-holding platform 2 includes a stacked first platform 21, a second platform 22, and a vacuum adsorption platform 23. The first platform 21 is movably arranged on the frame 1, the second platform 22 is movably arranged on the first platform 21, the vacuum adsorption platform 23 is arranged on the second platform 22, and adsorption holes 231 are provided on the vacuum adsorption platform 23. The workpiece 5 is fixed through the adsorption holes 231 of the vacuum adsorption platform 23 by vacuum adsorption, realizing the positioning of the workpiece 5 and ensuring the stability of the workpiece 5 during the pressure-holding process. The movable characteristics of the first platform 21 and the second platform 22 ensure that the workpiece 5 on the vacuum adsorption platform 23 can be precisely adjusted in position, significantly improving the working efficiency.

[0047] In a specific embodiment, the pressure-holding platform 2 further includes a first stepping motor, a second stepping motor, and a third stepping motor. A first guide rail is provided on the frame 1, a second guide rail and a third guide rail (the second guide rail and the third guide rail are not shown in the drawings) are provided on the upper surface of the first platform 21, a first guide block is provided on the lower surface of the first platform 21, and a second guide block and a third guide block (the second guide block and the third guide block are not shown in the drawings) are provided on the lower surface of the second platform 22. Through the cooperation of the guide blocks, guide rails, and stepping motors, the first platform 21 and the second platform 22 have movable characteristics. Specifically, the first platform 21 can move back and forth on the frame 1, and the second platform 22 can move left and right or back and forth on the first platform 21.

[0048] In the above embodiments, the material of the buffer pad 48 is silica gel. Silica gel has good elasticity and wear resistance, improving the buffer effect and service life during the pressure-holding process.

[0049] Although the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A pressing machine, characterized in that, Comprising: A frame; A pressure-holding platform, disposed on the frame and used for placing a workpiece; A press head assembly, the press head assembly including a driving member and a press head, the press head being disposed above the pressure-holding platform, the driving member being disposed on the frame, the driving member being connected to the press head and used for driving the press head to move downward close to or upward away from the pressure-holding platform; A coil buffer mechanism, the coil buffer mechanism including a connecting plate, a coil unwinding shaft, a coil winding shaft, pressing rollers and a buffer pad, the connecting plate being disposed above the pressure-holding platform, there being two pressing rollers, the coil unwinding shaft, the coil winding shaft and the two pressing rollers being rotatably disposed on the connecting plate, one end of the buffer pad being wound around the coil unwinding shaft, and the other end of the buffer pad being connected to the coil winding shaft, the portion of the buffer pad between the coil unwinding shaft and the coil winding shaft passing through the two pressing rollers in sequence and forming a flattened portion between the two pressing rollers, the flattened portion being parallel or substantially parallel to the surface of the workpiece; When performing pressure-holding on the workpiece on the pressure-holding platform, the press head is driven by the driving member to approach the pressure-holding platform and presses the flattened portion of the buffer pad against the surface of the workpiece.

2. The press according to claim 1, characterized in that, The coil buffer mechanism further includes a coil driving member, an output end of the coil driving member being in transmission connection with the coil unwinding shaft or the coil winding shaft, and the coil unwinding shaft and the coil winding shaft being in transmission connection through a synchronous belt.

3. The press according to claim 1, characterized in that, The coil buffer mechanism further includes a guide roller, the guide roller being rotatably disposed on the connecting plate, the guide roller being used for guiding the movement of the buffer pad between the coil unwinding shaft and the pressing roller and between the coil winding shaft and the pressing roller.

4. The press according to claim 3, characterized in that, The connecting plate is provided with a connecting post and a connecting hole penetrating both sides of the connecting plate, the guide roller including a roller rod and a roller body, the roller rod passing through the connecting hole, one end of the roller rod being connected to the connecting post through an elastic member, and the other end of the roller rod being rotatably sleeved with the roller body.

5. The press according to claim 1, characterized in that, The press head assembly further includes a base, the base being connected to the frame and provided with a slide rail, the press head being provided with a slider cooperating with the slide rail; The driving member includes a fixed portion and a movable portion, the fixed portion being connected to the base, the movable portion being movably connected to the fixed portion, and the movable portion being connected to the press head.

6. The press machine according to claim 5, characterized in that, The connecting plate is connected to the base, the coil unwinding shaft and the coil winding shaft being arranged side by side and spaced apart at the upper end of the connecting plate, the two pressing rollers being disposed between the coil unwinding shaft and the coil winding shaft, and the two pressing rollers being arranged side by side and spaced apart at the lower end of the connecting plate; The driving member drives the press head to move between the coil unwinding shaft and the coil winding shaft.

7. The press according to claim 1, characterized in that, The press head includes a first press head and a second press head arranged side by side and spaced apart, the first press head being a cold press head and the second press head being a hot press head; The driving member includes a first driving member and a second driving member, the first driving member being connected to the first press head and the second driving member being connected to the second press head.

8. The press machine according to claim 1, characterized in that, The pressure-holding platform includes a first platform, a second platform, and a vacuum adsorption platform that are stacked. The first platform is movably disposed on the frame. The second platform is movably disposed on the first platform. The vacuum adsorption platform is disposed on the second platform, and adsorption holes are provided on the vacuum adsorption platform.

9. The press according to claim 1, characterized in that, The material of the buffer pad is silica gel.

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