Automatic Riveting Machine for Filter Bag Assembly

Abstract

The present invention discloses an automatic riveting machine for filter bag assembly, which includes a frame, a set of conveying frames, a support frame, a riveting base, a plurality of riveting devices, a first material clamping mechanism, a moving seat, a second material clamping mechanism, a material feeding mechanism, a material pressing mechanism, a Z-direction translation driving mechanism capable of driving the riveting base to move in the Z direction, a Y-direction translation driving mechanism capable of driving the riveting device to move in the Y direction, and an X-direction translation driving mechanism capable of driving the moving seat to move in the X direction. Therefore, the present invention can rivet the adjacent long side edges of multiple products together, and can also reinforce from the outer periphery through an outer frame and assemble multiple inner frames onto the outer frame group, that is, it can realize the automatic riveting and assembly of multiple products, with high automation degree and high efficiency, and is suitable for mass production.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical devices, in particular to an automatic riveting machine for assembling filter bags. Background Art

[0002] Fresh air filtration systems or equipment use filters, which are composed of multiple (for example, six) filter bags assembled side by side. The process is as follows: one end of the filter bag is open. The outer periphery of the inner frame is first sprayed with glue, and the glued inner frame is then placed inside the mouth of the filter bag. Next, two adjacent filter bags (primarily the inner frames) are riveted together, and then the inner frames of the mouths of the multiple filter bags are assembled together using a large outer frame. In the prior art, riveting the mouths of adjacent filter bags (including the inner frames) and assembling multiple filter bags together using a single outer frame are both performed manually, resulting in low efficiency and automation. The riveting device is also relatively large, and the riveting process is unstable. Summary of the Invention

[0003] The main technical problem solved by the present invention is to provide an automatic riveting machine for filter bag assembly, which has an ingenious and reasonable structural design, stable operation of each component, can rivet the adjacent long sides of multiple products together, and can also reinforce multiple inner frames from the outer periphery through an outer frame and assemble multiple inner frames to the outer frame group, that is, it can realize automatic riveting and assembly of multiple products, with a high degree of automation and high efficiency, and is suitable for mass production.

[0004] In order to solve the above technical problems, the present invention adopts a technical solution as follows: providing an automatic riveting machine for filter bag assembly, the riveting machine comprising a frame, a group of conveying frames, a supporting frame, a riveting base, a plurality of riveting devices, a first clamping mechanism, a movable seat, a second clamping mechanism, a material shifting mechanism, a material pressing mechanism, a Z-direction translation driving mechanism capable of driving the riveting base to move in the Z direction, a Y-direction translation driving mechanism capable of driving the riveting device to move in the Y direction, and an X-direction translation driving mechanism capable of driving the movable seat to move in the X direction;

[0005] The movable seat is mounted on the conveyor frame, and the first clamping mechanism and the material shifting mechanism are both fixedly mounted on the movable seat. The first clamping mechanism clamps the products from both sides and drives the movable seat to translate along the X direction through the X-direction translation drive mechanism, and the material shifting mechanism shifts a group of products and drives the material shifting mechanism to translate along the X direction through the X-direction translation drive mechanism.

[0006] The pressing mechanism is installed on the conveying frame, and the product is pressed against the upper surface of the conveying frame from above by the pressing mechanism;

[0007] The support frame is installed on the machine frame, and the second material clamping mechanism and several riveting devices are fixedly installed on the riveting base; the Z-direction translation driving mechanism is installed on the support frame, and its power output end installs the riveting base and can drive the riveting base to lift along the Z direction. The Y-direction translation driving mechanism is installed on the riveting base and can drive the riveting device to translate along the Y direction to rivet the product.

[0008] Further, the set of conveying frames includes two conveying frames that are parallel to each other, and the distance between the two conveying frames can be adjusted by a first width adjustment mechanism.

[0009] Further, the set of conveying frames includes two conveying frames that are parallel to each other. The X-direction translation driving mechanism includes an X-direction driving motor, multiple transmission wheels, a driving shaft, a first conveyor belt, and a second conveyor belt. The power output end of the X-direction driving motor is connected to a transmission wheel. The middle and both ends of the driving shaft are sleeved with the transmission wheels. The first conveyor belt is sleeved on the transmission wheel at the end of the X-direction driving motor and the transmission wheel in the middle of the driving shaft; each side of the conveying frame is also provided with the transmission wheel, and the moving seat is fixed to the second conveyor belt. At the same time, the second conveyor belt also winds around the transmission wheel at the end of the driving shaft and the transmission wheel on the side of the conveying frame.

[0010] Further, there are two first material clamping mechanisms, which are respectively located on the moving seats of the two conveying frames. Each first material clamping mechanism includes a first material clamping driving cylinder and a clamping plate. The clamping plate is installed at the power output end of the first material clamping driving cylinder, and the product is clamped from the side by driving the clamping plate to translate along the Y direction through the first material clamping driving cylinder.

[0011] There are two material dialing mechanisms, which are respectively located on the moving seats of the two conveying frames. Each material dialing mechanism includes a material dialing driving cylinder and a material dialing arm. The material dialing driving cylinder is a rotary cylinder. One end of the material dialing arm is installed at the power output end of the material dialing driving cylinder, and the product is dialed by driving the material dialing arm to rotate through the material dialing driving cylinder.

[0012] Further, the upper surface of the conveying frame is provided with a plurality of transverse rollers for facilitating the sliding of the product; there is also a section in the middle of the conveying frame provided with a plurality of longitudinal rollers to firmly bond the filter bag and the inner frame of its mouth during the movement of the product.

[0013] Further, the second material clamping mechanism includes a second material clamping driving cylinder and a pneumatic gripper. The power output end of the second material clamping driving cylinder installs the pneumatic gripper. The distance between the two claws of the pneumatic gripper gradually increases from top to bottom, and the adjacent product mouths are clamped together by driving the pneumatic gripper through the second material clamping driving cylinder.

[0014] Furthermore, there are two sets of the riveting devices. The Y-direction translation driving mechanism includes a Y-direction driving motor and a second lead screw. The front section and the rear section of the second lead screw have threads with opposite helix directions. Each riveting device is connected to a nut, and the nuts are respectively sleeved on the front section and the rear section of the second lead screw. By driving the second lead screw to rotate through the Y-direction driving motor, the two riveting devices are finally driven to approach or move away from each other.

[0015] Furthermore, the riveting device includes a riveting frame, a riveting cavity, a piercing assembly, a right driving unit, a riveting knife and a left driving unit. The riveting cavity is fixedly installed on the riveting frame. The piercing assembly is located on the right side of the riveting cavity. The riveting knife is located on the left side of the riveting cavity. The piercing assembly is installed at the power output end of the right driving unit, and the riveting knife is installed at the power output end of the left driving unit. By driving the piercing assembly to translate leftward through the right driving unit, the product is pierced to form a thorn needle, and by driving the riveting knife to translate rightward through the left driving unit, the thorn needle is riveted to the product.

[0016] Furthermore, the piercing assembly includes a piercing seat, a piercing knife, a pre-pressing plate and an elastic member. The piercing seat is fixedly installed at the power output end of the right driving unit. The pre-pressing plate is installed on the surface of the piercing seat through a first guide post. Two ends of the elastic member respectively abut against the surface of the pre-pressing plate and the piercing seat. The root of the piercing knife is fixed to the lower part of the piercing seat, and the head of the piercing knife passes through the pre-pressing plate.

[0017] Furthermore, one end of the conveying frame is also docked with an outer frame assembling device. The outer frame assembling device includes an assembling base, two moving frames, a moving plate, an assembling translation driving cylinder and a second width adjusting mechanism. One end of the assembling translation driving cylinder is connected to the moving plate, and the moving plate is driven to slide along the surface of the assembling base through the assembling translation driving cylinder. The moving frames are located on both sides of the moving plate, and the distance between the two moving frames can be adjusted through the second width adjusting mechanism.

[0018] The beneficial effects of the present invention are as follows:

[0019] The present invention includes a machine frame, a set of conveying frames, a support frame, a riveting base, a plurality of riveting devices, a first material clamping mechanism, a moving seat, a second material clamping mechanism, a material pushing mechanism, a material pressing mechanism, a Z-direction translation driving mechanism capable of driving the riveting base to move in the Z direction, a Y-direction translation driving mechanism capable of driving the riveting devices to move in the Y direction, and an X-direction translation driving mechanism capable of driving the moving seat to move in the X direction. Therefore, the present invention can rivet the adjacent long side edges of multiple products together, and can also reinforce from the periphery through an outer frame and assemble multiple inner frames onto the outer frame group, that is, it can realize the automatic riveting and assembly of multiple products, with high automation degree and high efficiency, and is suitable for mass production.

[0020] Furthermore, in the present invention, the distance between the two conveying frames can be adjusted by the first width adjusting mechanism, the distance between the two moving frames can be adjusted by the second width adjusting mechanism, and in addition, the two riveting devices can be driven to be in different positions by the Y-direction driving mechanism. Therefore, this riveting machine can realize the riveting and assembly of products with different size specifications, improving the versatility of the equipment;

[0021] Furthermore, the riveting device of the present invention includes a riveting frame, a riveting cavity, a piercing assembly, a right driving unit, a riveting knife and a left driving unit. The piercing assembly includes a piercing knife and a pre-pressing plate. The right driving unit drives the piercing assembly to move leftward to push the product between the riveting cavity and the pre-pressing plate, and drives the piercing knife to pierce the product to form a thorn needle, and then the left driving unit drives the riveting knife to translate rightward to rivet the product; Therefore, through the design of the riveting cavity, the piercing assembly, the riveting knife, etc., the present invention can realize the automatic riveting of products, and the whole device has stable performance and small volume;

[0022] Furthermore, the piercing assembly of the present invention includes a piercing seat, a piercing knife, a pre-pressing plate and an elastic member. Before riveting, the right driving unit drives the pre-pressing plate to push the product to the surface of the riveting cavity. During this process, the elastic member makes the pre-pressing plate slowly push the product leftward to make it contact with the riveting cavity, avoiding damaging the product by applying force suddenly.

[0023] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following describes in detail with reference to the preferred embodiments of the present invention and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is one of the structural schematic diagrams of the present invention;

[0025] Figure 2 is another structural schematic diagram of the present invention;

[0026] Figure 3 is the third structural schematic diagram of the present invention;

[0027] Figure 4 is one of the structural schematic diagrams of the conveying frame of the present invention;

[0028] Figure 5 is another structural schematic diagram of the conveying frame of the present invention;

[0029] Figure 6 is the structural schematic diagram of the first material clamping mechanism of the present invention;

[0030] Figure 7 is the structural schematic diagram of the material feeding mechanism of the present invention;

[0031] Figure 8 is a schematic structural view of the blank holding mechanism of the present invention;

[0032] Figure 9 is a schematic structural view of the second clamping mechanism of the present invention;

[0033] Figure 10 One of the schematic structural views of the riveting device of the present invention;

[0034] Figure 11 is the second schematic structural view of the riveting device of the present invention;

[0035] Figure 12 is the second schematic structural view of the riveting device of the present invention;

[0036] Figure 13 is the front view of the riveting device of the present invention;

[0037] Figure 14 is the sectional view of the riveting device of the present invention (sectioned along the axial direction of the first guide post);

[0038] Figure 15 is one of the top views of the piercing knife and the riveting knife of the riveting device of the present invention;

[0039] Figure 16 is the second top view of the piercing knife and the riveting knife of the riveting device of the present invention;

[0040] Figure 17 is the riveting process diagram of the riveting device of the present invention;

[0041] Figure 18 is one of the schematic structural views of the outer frame assembling device of the present invention;

[0042] Figure 19 is the second schematic structural view of the outer frame assembling device of the present invention;

[0043] The marks of each part in the drawings are as follows:

[0044] Product 100, filter bag 1001, inner frame 1002, thorn needle 1003, outer frame 200;

[0045] Riveting device 1, riveting frame 11, pawl 111, riveting cavity 12, piercing assembly 13, piercing seat 131, piercing knife 132, piercing blade 1321, arc surface 1322, step surface 1323, pre-pressing plate 133, elastic member 134, first guide post 135, bolt 136, right driving unit 14, riveting knife 15, riveting blade 151, plane 1511, inclined surface 1512, riveting seat 152, left driving unit 16, second guide post 17, third guide post 18, fourth guide post 19; the distance D between the two step surfaces, the width W of the right end of the riveting knife;

[0046] Frame 2, conveying frame 3, horizontal roller 31, longitudinal roller 32, support frame 4, riveting base 5;

[0047] First clamping mechanism 6, first clamping driving cylinder 61, clamping plate 62, moving seat 7;

[0048] Second clamping mechanism 8, second clamping driving cylinder 81, pneumatic gripper 82;

[0049] Stocking mechanism 9, stocking driving cylinder 91, stocking arm 92;

[0050] Pressing mechanism 10, pressing driving cylinder 101, pressing plate 102;

[0051] Z-direction translation driving mechanism 20, Y-direction translation driving mechanism 30, Y-direction driving motor 301, second lead screw 302;

[0052] X-direction translation driving mechanism 40, X-direction driving motor 401, transmission wheel 402, drive shaft 403, first conveyor belt 404, second conveyor belt 405, guide wheel 406;

[0053] First width adjusting mechanism 50, first adjusting handwheel 501, first lead screw 502, gear 503, transmission shaft 504;

[0054] Outer frame assembling device 60, assembling base 601, moving wheel 6011, support foot 6012, moving frame 602, positioning block 6021, moving plate 603, assembling translation driving cylinder 604, second adjusting handwheel 6051, third lead screw 6052. Specific embodiments

[0055] The following specific embodiments illustrate the specific implementation manners of the present invention. Those skilled in the art can easily understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented in other different ways, that is, without departing from the scope disclosed by the present invention, different modifications and changes can be made.

[0056] The descriptions of positions such as up, down, left, and right in this embodiment are based on the orientation in the drawings, without special meanings and do not limit the protection scope of the present invention.

[0057] Embodiment: An automatic riveting machine for assembling filter bags, as Figures 1 to 19As shown, the riveting machine includes a frame 2, a group of conveying frames, a support frame 4, a riveting base 5, a plurality of riveting devices 1, a first clamping mechanism 6, a movable base 7, a second clamping mechanism 8, a material shifting mechanism 9, a material pressing mechanism 10, a Z-direction translation driving mechanism 20 capable of driving the riveting base 5 to move in the Z direction, a Y-direction translation driving mechanism 30 capable of driving the riveting device 1 to move in the Y direction, and an X-direction translation driving mechanism 40 capable of driving the movable base 7 to move in the X direction;

[0058] The movable seat 7 is mounted on the conveyor frame 3, and the first clamping mechanism 6 and the material shifting mechanism 9 are both fixedly mounted on the movable seat 7. The first clamping mechanism 6 clamps the product 100 from both sides and drives the movable seat 7 to translate along the X direction through the X-direction translation drive mechanism 40. The material shifting mechanism 9 shifts a group of products and drives the material shifting mechanism 9 to translate along the X direction through the X-direction translation drive mechanism 40.

[0059] The pressing mechanism 10 is installed on the conveying frame 3, and the product 100 is pressed against the upper surface of the conveying frame 3 from above by the pressing mechanism 10;

[0060] like Figures 1 to 5 As shown, the support frame 4 is mounted on the frame 2, the second clamping mechanism 8 and several of the riveting devices 1 are fixedly mounted on the riveting base 5; the Z-direction translation drive mechanism is mounted on the support frame 4, and its power output end is mounted on the riveting base 5 and can drive the riveting base 5 to rise and fall along the Z direction, the Y-direction translation drive mechanism 30 is mounted on the riveting base and can drive the riveting device 1 to translate along the Y direction to rivet the product.

[0061] like Figures 1 to 5 As shown, the group of conveyor racks includes two conveyor racks 3 parallel to each other, and the distance between the two conveyor racks 3 can be adjusted by a first width adjustment mechanism 50. The first width adjustment mechanism 50 includes a first adjustment handwheel 501, two first screw rods 502, a gear 503 and a transmission shaft 504. The threads of the front and rear sections of each first screw rod 502 are opposite. The two sides of the lower end of each conveyor rack 3 are threadedly connected to the first screw rod. The middle position of each first screw rod is equipped with a gear. Both ends of the transmission shaft are also provided with a gear. The gears in the middle position of the two first screw rods are respectively engaged with the gears at both ends of the transmission shaft. The first adjustment handwheel 501 is connected to the end of one of the first screw rods 502 and can drive the first screw rod 502 to rotate, thereby driving the two conveyor racks 3 to move closer or farther away at the same time. Of course, other first width adjustment mechanisms can also be used as long as they can achieve the adjustment of the distance between the two conveyor racks.

[0062] like Figure 1 arriveFigure 5 As shown, the set of conveying frames includes two conveying frames 3 that are parallel to each other. The X-direction translation driving mechanism 40 includes an X-direction driving motor 401, a plurality of transmission wheels 402, a driving shaft 403, a first conveyor belt 404, and a second conveyor belt 405. The power output end of the X-direction driving motor 401 is connected to a transmission wheel 402. The middle and both ends of the driving shaft 403 are sleeved with the transmission wheels 402. The first conveyor belt 404 is sleeved on the transmission wheel 402 at the end of the X-direction driving motor 401 and the transmission wheel 402 in the middle of the driving shaft 403. A transmission wheel 402 is also provided on the side of each conveying frame 3. The moving seat 7 is fixed to the second conveyor belt 405, and at the same time, the second conveyor belt 405 also winds around the transmission wheel 402 at the end of the driving shaft 403 and the transmission wheel 402 on the side of the conveying frame 3. The X-direction driving motor 401 drives the driving shaft 403 to rotate through the cooperation of the transmission wheels 402 and the first conveyor belt, and then drives the moving seat 7 to translate in the X direction through the cooperation of the transmission wheels 402 and the second conveyor belt 405. The X-direction translation driving mechanism 40 in this embodiment further includes a guide wheel 406 provided on the side of the conveying frame. In order to obtain the force in the required direction, the second conveyor belt also winds around the guide wheel 406.

[0063] As Figure 4 and Figure 6 shown, there are two first clamping mechanisms 6, which are respectively located on the moving seats of the two conveying frames 3. Each first clamping mechanism 6 includes a first clamping driving cylinder 61 and a clamping plate 62. The clamping plate 62 is installed at the power output end of the first clamping driving cylinder 61. The first clamping driving cylinder 61 drives the clamping plate 62 to translate in the Y direction to clamp the product from the side.

[0064] As Figure 4 and Figure 7 shown, there are two material pushing mechanisms 9, which are respectively located on the moving seats of the two conveying frames 3. Each material pushing mechanism 9 includes a material pushing driving cylinder 91 and a material pushing arm 92. The material pushing driving cylinder 91 is a rotary cylinder. One end of the material pushing arm 92 is installed at the power output end of the material pushing driving cylinder 91. The material pushing driving cylinder 91 drives the material pushing arm 92 to rotate to push the product.

[0065] As Figure 4 and Figure 8 shown, there are two material pressing mechanisms 10, which are respectively located on both sides of the conveying frame. Each material pressing mechanism 10 includes a material pressing driving cylinder 101 and a material pressing plate 102. The material pressing plate 102 is installed at the power output end of the material pressing driving cylinder 101. The material pressing driving cylinder 101 drives the material pressing plate 102 to translate in the Z direction to clamp the product from top to bottom on the surface of the conveying frame.

[0066] AsFigure 4 As shown, a plurality of transverse rollers 31 facilitating product sliding are provided on the upper surface of the conveying rack 3, which play a guiding and supporting role, making the translation process of the product along the X direction on the conveying rack smoother and reducing friction. There is also a section in the middle of the conveying rack 3 where a plurality of longitudinal rollers 32 are provided. During the movement of the product, the longitudinal rollers 32 firmly bond the filter bag 1001 to the short side of the inner frame 1002 at its mouth. In the upstream process, glue is applied to the outer peripheral surface of the inner frame 1002, and then the inner frame is adhered to the mouth of the filter bag. Since the long side will be clamped with the mouth of the filter bag in the upstream process, and the short side may not be firmly adhered to the mouth, during the translation of the product, it is squeezed by the longitudinal rollers to firmly bond the short side to the mouth of the filter bag.

[0067] As Figure 4 and Figure 9 As shown, the second material clamping mechanism 8 includes a second material clamping driving cylinder 81 and a pneumatic claw 82. The power output end of the second material clamping driving cylinder 81 is installed with the pneumatic claw 82. The distance between the two claws of the pneumatic claw 82 gradually increases from top to bottom. The second material clamping driving cylinder 81 drives the pneumatic claw 82 to clamp one side of the mouths of adjacent products together.

[0068] As Figures 10 to 17 As shown, there are two sets of the riveting devices 1. The Y-direction translation driving mechanism 30 includes a Y-direction driving motor 301 and a second lead screw 302. The front section and the rear section of the second lead screw 302 have threads with opposite helix directions. Each riveting device 1 is connected to a nut, and the nuts are respectively sleeved on the front section and the rear section of the second lead screw 302. By driving the second lead screw 302 to rotate through the Y-direction driving motor 301, the two riveting devices 1 are finally driven to approach or move away from each other. In this embodiment, the Z-direction translation driving mechanism is a driving mechanism composed of a Z-direction driving motor and a lead screw, which is a prior art and will not be elaborated here.

[0069] As Figures 10 to 17 As shown, the riveting device 1 includes a riveting frame 11, a riveting cavity 12, a piercing component 13, a right driving unit 14, a riveting knife 15 and a left driving unit 16. The riveting cavity 12 is fixedly installed on the riveting frame 11. The piercing component 13 is located on the right side of the riveting cavity 12. The riveting knife 15 is located on the left side of the riveting cavity 12. The piercing component 13 is installed at the power output end of the right driving unit 14, and the riveting knife 15 is installed at the power output end of the left driving unit 16. The right driving unit 14 drives the piercing component to translate leftward to pierce the inner frame 1002 at the mouth of the product 100 to form a thorn 1003, and the left driving unit drives the riveting knife to translate rightward to rivet the thorn to the mouths of two adjacent products.

[0070] In this embodiment, the puncturing assembly 13 includes a puncturing base 131, a puncturing knife 132, a pre-pressing plate 133, and an elastic member 134. The puncturing base 131 is fixedly installed at the power output end of the right driving unit 14. The pre-pressing plate 133 is installed on the surface of the puncturing base 131 through a first guide post 135. The two ends of the elastic member 134 are respectively pressed against the surfaces of the pre-pressing plate 133 and the puncturing base 131. The root of the puncturing knife 132 is fixed to the lower part of the puncturing base 131, and the head of the puncturing knife 132 passes through the pre-pressing plate. In this embodiment, the elastic member is a spring, but it is not limited thereto. Other elastic members can also be used as long as they can play an elastic buffering and resetting role.

[0071] As Figure 10 shown, a set of claw arms 111 are respectively provided on both side surfaces of the riveting device. Each claw arm includes two claw arms, and the distance between the two claw arms gradually increases from top to bottom, that is, a flaring is formed. The distance between the roots of the two claw arms matches the sum of the thicknesses of the adjacent sides of the mouths of the two products.

[0072] In this embodiment, as Figure 12 shown, the root of the puncturing knife 132 and the puncturing base 131 are detachably connected by a bolt 136. When the puncturing knife is worn or different puncturing knives are required for riveting different products, it is convenient to replace the puncturing knife.

[0073] As Figure 15 and Figure 16 shown, the front end of the puncturing knife 132 is divided into two puncturing blades 1321. The left end surface of the puncturing blade is an arc surface 1322. A stepped surface 1323 is formed on the inner side surface of the puncturing blade, and the distance between the roots of the two arc surfaces is less than the distance at the opening.

[0074] The right driving unit 14 and the left driving unit 16 are respectively a cylinder, a hydraulic cylinder, an electric cylinder or a motor; the right driving unit is fixedly installed on the right side of the riveting frame 11; the left driving unit is fixedly installed on the left side of the riveting frame 11. In this embodiment, both the right driving unit 14 and the left driving unit 16 adopt oil cylinders, which are a type of hydraulic cylinder.

[0075] The left end of the riveting knife 15 is fixedly installed on a riveting base 152. The riveting base 152 is installed at the power output end of the left driving unit. The right end of the riveting knife 15 passes through the riveting cavity 12. As Figure 15 and Figure 16 shown, the end of the riveting knife 15 is divided into two riveting blades 151. The right end surface of the riveting blade 151 includes a plane 1511 and an inclined surface 1512 that are connected to each other. The inclined surface is inclined obliquely outwards;

[0076] The distance D between the two stepped surfaces is consistent with the width W of the right end of the riveting tool.

[0077] The left end of the riveting tool 15 and the riveting seat 152 are detachably connected by a bolt 136. When the riveting tool is worn or different riveting tools are required for riveting different products, it is convenient to replace the riveting tool.

[0078] Since both the puncturing tool and the puncturing seat and the riveting tool and the riveting seat are detachably connected and easy to replace, when riveting different products, only different puncturing tools and riveting tools need to be replaced, improving the versatility of the riveting device.

[0079] As Figures 11 to 17 shown, a second guide post 17 is provided between the riveting frame 11 and the left driving unit 16; a third guide post 18 is provided between the riveting seat 152 and the riveting cavity 12; a fourth guide post 19 is provided between the right driving unit 14, the puncturing seat 131 and the riveting cavity 12. The second guide post, the third guide post, the fourth guide post here and the first guide post above all play a guiding role during the translation of the corresponding components.

[0080] In this embodiment, as Figure 18 and Figure 19 shown, one end of the conveying frame 3 is also docked with the outer frame assembling device 60. The outer frame assembling device 60 includes an assembling base 601, two moving frames 602, a moving plate 603, an assembling translation driving cylinder 604 and a second width adjusting mechanism. One end of the assembling translation driving cylinder 604 is connected to the moving plate 603, and the moving plate is driven to slide along the surface of the assembling base 601 by the assembling translation driving cylinder 604; the moving frames 602 are located on both sides of the moving plate 603, and the distance between the two moving frames 602 can be adjusted by the second width adjusting mechanism. In this embodiment, the second width adjusting mechanism includes a second adjusting handwheel 6051 and a third lead screw 6052. The threads of the front section and the rear section of each third lead screw 6052 are opposite. Both sides of the lower end of each moving frame 602 are threadedly connected to the third lead screw. The second adjusting handwheel 6051 is connected to the end of the third lead screw 6052 and can drive the third lead screw 6052 to rotate so as to simultaneously move the two moving frames 602 closer or farther away. A positioning block 6021 is provided on the inner side surface of the moving frame 602, and the outer frame 200 can be placed on the positioning block 6021. Moving wheels 6011 and support feet 6012 are provided at the bottom of the assembling base 601, facilitating the handling, movement and relative fixation of the outer frame assembling device.

[0081] The specific process is as follows: The assembly translation drive cylinder 604 drives the moving plate to be located at the section close to the conveying rack 3, and then the material pushing mechanism 9 pushes a group of products into the outer frame 200 of the moving rack (the four sides of the outer frame are pre-assembled, but one end of the fourth side is open). Then, the assembly translation drive cylinder 604 drives the moving plate 603 to retreat (i.e., to the position of Figure 18 ), and pushes the outer frame assembly device out (it has moving wheels and can be pushed out), so that there is space to close the fourth side. Then, other riveting devices are used to rivet the outer frame and the inner frame together to complete the assembly of a filter.

[0082] In this embodiment, the distance between the two conveying racks can be adjusted through the first width adjustment mechanism, the distance between the two moving racks can be adjusted through the second width adjustment mechanism, and in addition, the two riveting devices can be driven to different positions through the Y-direction drive mechanism. Therefore, this riveting machine can realize the riveting and assembly of products with different size specifications, improving the versatility of the equipment.

[0083] The working principle and process of the present invention:

[0084] The filter is composed of multiple (taking 6 as an example) products 100 (including a filter bag 1001 and an inner frame 1002). In the upstream process, the inner frame is pre-bonded to the inner side of the mouth of the filter bag. The riveting machine of the present invention then rivets the adjacent long sides of the products together, and finally places an outer frame and rivets the inner frames of multiple products to the outer frame.

[0085] Place the product 100 from the upstream process at the end of the conveyor rack 3. Then, the first clamping mechanism 6 clamps the product from both sides. Next, the X-direction translation drive mechanism 40 drives the moving seat 7 to translate and move the product to the riveting station (i.e., directly below the support frame). This product is called the first product. Then, the pressing drive cylinder drives the pressing plate into place to press the first product onto the conveyor rack. Similarly, move the second product to the riveting station. Then, the Z-direction translation drive mechanism 20 drives the riveting base 5 to descend. Then, the second clamping drive cylinder 81 drives the pneumatic gripper 82 to descend into place to clamp the inner frames of the adjacent long sides of the two adjacent products together. After that, the riveting device descends into place, and its built-in pawl will continue to clamp the inner frames of the adjacent long sides of the two products together. At this time, the second clamping drive cylinder 81 drives the pneumatic gripper 82 to lift up. The riveting device 1 rivets the inner frames 1002 of the adjacent sides of the two products 100 together. By driving the riveting device to translate in the Y direction through the Y-direction translation drive mechanism, riveting at the required position can be achieved. Similarly, move the third product and rivet the inner frames of the adjacent long sides of the second and third products together until the long sides of the required number of products (such as 6 products) are riveted together to form a group of products. Then, the dialing drive cylinder 91 drives the dialing arm 92 to rotate to the inside of the product or the outer side of the last product. Then, the X-direction translation drive mechanism 40 drives the moving seat 7 to translate and thus transport the above group of products to the other end of the conveyor rack. At this time, the outer frame assembly device 60 is docked with the conveyor rack 3, and the above group of products will enter the moving rack 602 where the outer frame is pre-placed. Then, push the outer frame assembly device 60 to move outwards and close the fourth side of the outer frame. Then, use other riveting devices to rivet the outer frame and the inner frame together to complete the assembly of a filter.

[0086] The process of riveting the adjacent long sides of adjacent products is as follows:

[0087] Among them, Figure 17 In, from top to bottom on the right, it represents the state of the product before riveting, the state after piercing, and the state after riveting. From top to bottom on the left, it is the piercing process and the riveting process. The function of the riveting device is to change the product from the state before riveting to the state after riveting.

[0088] The riveting cavity is fixedly installed on the riveting frame and its position is relatively stationary. As Figure 17 shown, the product is located between the riveting cavity and the pre-pressing plate. The right drive unit pushes the piercing seat to move leftward, which will drive the pre-pressing plate to push the product to the position of the riveting cavity (through the elastic member, the pre-pressing plate slowly pushes the product leftward to make it contact with the riveting cavity, avoiding damaging the product by applying sudden force). The right drive unit continues to move forward until it drives the piercing knife to pierce the product to form the thorn needle 1003 (i.e., Figure 17In the process, the product will become the state after piercing), and the right driving unit stops moving. Then the left driving unit moves to the right, pushing the riveting seat to move and driving the riveting tool to translate to the right to rivet the product. After the riveting is completed (that is, Figure 17 In the process, the product will become the state after riveting), the right driving unit retracts to its original position, and the left driving unit continues to push to the right until the product is pushed out of the riveting cavity, and then the left driving unit retracts, and the riveting ends.

[0089] The above are only the embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An automatic riveting machine for assembling filter bags, characterized in that: The riveting machine comprises a frame (2), a group of conveying frames, a support frame (4), a riveting base (5), a plurality of riveting devices (1), a first clamping mechanism (6), a movable seat (7), a second clamping mechanism (8), a material shifting mechanism (9), a material pressing mechanism (10), a Z-direction translation driving mechanism (20) capable of driving the riveting base (5) to move in the Z direction, a Y-direction translation driving mechanism (30) capable of driving the riveting device (1) to move in the Y direction, and an X-direction translation driving mechanism (40) capable of driving the movable seat (7) to move in the X direction. The movable seat (7) is mounted on the conveying frame (3), and the first clamping mechanism (6) and the material shifting mechanism (9) are both fixedly mounted on the movable seat (7), the first clamping mechanism (6) clamps the product (100) from both sides and drives the movable seat (7) to translate along the X direction through the X-direction translation drive mechanism (40), and the material shifting mechanism (9) shifts a group of products and drives the material shifting mechanism (9) to translate along the X direction through the X-direction translation drive mechanism (40); The pressing mechanism (10) is installed on the conveying frame (3), and the product (100) is pressed against the upper surface of the conveying frame (3) from above by the pressing mechanism (10); The support frame (4) is mounted on the frame (2), and the second clamping mechanism (8) and the plurality of riveting devices (1) are fixedly mounted on the riveting base (5); the Z-direction translation drive mechanism is mounted on the support frame (4), and the riveting base (5) is mounted on its power output end and can drive the riveting base (5) to move up and down along the Z direction; the Y-direction translation drive mechanism (30) is mounted on the riveting base and can drive the riveting device (1) to move along the Y direction to perform riveting on the product; The riveting device (1) comprises a riveting frame (11), a riveting cavity (12), a piercing assembly (13), a right driving unit (14), a riveting knife (15) and a left driving unit (16); the riveting cavity (12) is fixedly mounted on the riveting frame (11); the piercing assembly (13) is located on the right side of the riveting cavity (12); the riveting knife (15) is located on the left side of the riveting cavity (12); the piercing assembly (13) is mounted on the power output end of the right driving unit (14); the riveting knife (15) is mounted on the power output end of the left driving unit (16); the right driving unit (14) drives the piercing assembly to translate to the left to pierce the product (100) to form a piercing needle (1003); and the left driving unit drives the rivet knife to translate to the right to rivet the piercing needle to the product; The puncture assembly (13) includes a puncture seat (131), a puncture knife (132), a pre-pressing plate (133) and an elastic member (134); the puncture seat (131) is fixedly mounted on the power output end of the right drive unit (14); the pre-pressing plate (133) is mounted on the surface of the puncture seat (131) through a first guide column (135); the two ends of the elastic member (134) respectively press against the surfaces of the pre-pressing plate (133) and the puncture seat (131); the root of the puncture knife (132) is fixed to the lower part of the puncture seat (131), and the head of the puncture knife (132) passes through the pre-pressing plate; There are two first clamping mechanisms (6), which are respectively located on the movable seats of the two conveyor frames (3). Each of the first clamping mechanisms (6) includes a first clamping drive cylinder (61) and a clamping plate (62). The clamping plate (62) is installed at the power output end of the first clamping drive cylinder (61). The first clamping drive cylinder (61) drives the clamping plate (62) to move horizontally along the Y direction to clamp the product from the side. The material-diverting mechanism (9) is provided with two and is respectively located on the movable seats of the two conveying racks (3). Each of the material-diverting mechanism (9) includes a material-diverting driving cylinder (91) and a material-diverting arm (92). The material-diverting driving cylinder (91) is a rotary cylinder. One end of the material-diverting arm (92) is installed on the power output end of the material-diverting driving cylinder (91). The material-diverting driving cylinder (91) drives the material-diverting arm (92) to rotate and dig the product.

2. The automatic riveting machine for assembling filter bags according to claim 1, wherein: The group of conveying racks comprises two conveying racks (3) parallel to each other, and the distance between the two conveying racks (3) can be adjusted by a first width adjustment mechanism (50).

3. The automatic riveting machine for filtering bag assembly according to claim 1, wherein: The group of conveying frames comprises two conveying frames (3) parallel to each other, the X-direction translation drive mechanism (40) comprises an X-direction drive motor (401), a plurality of transmission wheels (402), a drive shaft (403), a first conveyor belt (404) and a second conveyor belt (405), the power output end of the X-direction drive motor (401) is connected to a transmission wheel (402), the middle and both ends of the drive shaft (403) are both provided with the transmission wheels (402), the first conveyor belt (404) is provided on the transmission wheel (402) at the end of the X-direction drive motor (401) and the transmission wheel (402) at the middle of the drive shaft (403); the side of each conveying frame (3) is also provided with the transmission wheel (402), the movable seat (7) is fixed to the second conveyor belt (405), and the second conveyor belt (405) is also wound around the transmission wheel (402) at the end of the drive shaft (403) and the transmission wheel (402) on the side of the conveying frame (3).

4. The automatic riveting machine for filtering bag assembly according to claim 1, characterized in that: The upper surface of the conveying frame (3) is provided with a plurality of transverse rollers (31) for facilitating the sliding of the product; a middle section of the conveying frame (3) is also provided with a plurality of longitudinal rollers (32), and the filter bag (1001) is firmly bonded to the inner frame (1002) at its mouth during the movement of the product through the longitudinal rollers (32).

5. The automatic riveting machine for assembling filter bags according to claim 1, characterized in that: The second material clamping mechanism (8) includes a second material clamping driving cylinder (81) and a pneumatic gripper (82). The power output end of the second material clamping driving cylinder (81) is provided with the pneumatic gripper (82). The distance between the two jaws of the pneumatic gripper (82) gradually increases from top to bottom. The second material clamping driving cylinder (81) drives the pneumatic gripper (82) to clamp one side of the mouths of adjacent products together.

6. The automatic riveting machine for assembling filter bags according to claim 1, characterized in that: There are two sets of the riveting devices (1). The Y-direction translation driving mechanism (30) includes a Y-direction driving motor (301) and a second lead screw (302). The front section and the rear section of the second lead screw (302) have threads with opposite helix directions. Each riveting device (1) is connected to a nut, and the nuts are respectively sleeved on the front section and the rear section of the second lead screw (302). The Y-direction driving motor (301) drives the second lead screw (302) to rotate, and finally drives the two riveting devices (1) to approach or move away from each other.

7. The automatic riveting machine for assembling filter bags according to claim 1, characterized in that: One end of the conveying rack (3) is also docked with the outer frame assembling device (60). The outer frame assembling device (60) includes an assembling base (601), two moving frames (602), a moving plate (603), an assembling translation driving cylinder (604) and a second width adjusting mechanism. One end of the assembling translation driving cylinder (604) is connected to the moving plate (603). The assembling translation driving cylinder (604) drives the moving plate to slide along the surface of the assembling base (601). The moving frames (602) are located on both sides of the moving plate (603), and the distance between the two moving frames (602) can be adjusted by the second width adjusting mechanism.

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