Automatic riveting machine for assembling filter bag

Abstract

The invention discloses an automatic riveting machine for assembling a filter bag. Comprising a rack, a set of conveying frames, a supporting frame, a riveting base, a plurality of riveting devices, a first material clamping mechanism, a moving seat, a second material clamping mechanism, a material shifting mechanism, a material pressing mechanism and a Z-direction translation driving mechanism capable of driving the riveting base to move in the Z direction. The Y-direction translation driving mechanism can drive the riveting device to translate in the Y direction, and the X-direction translation driving mechanism can drive the moving seat to translate in the X direction, so that adjacent long side edges of a plurality of products can be riveted together, the outer frame can be reinforced from the periphery, a plurality of inner frames are assembled on the outer frame group, and the riveting efficiency is improved. The automatic riveting and assembling device is high in automation degree, high in efficiency and suitable for batch production.

Description

Technical Field

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

[0002] A filter is used in a fresh air filtration system or device. The filter is composed of multiple (for example, 6) filter bags assembled side by side. The process is as follows: one end of the filter bag is open. First, the outer peripheral surface of the inner frame is sprayed with glue, and then the inner frame after spraying with glue is placed on the inner side of the mouth of the filter bag. After that, two adjacent filter bags (mainly inner frames) are riveted together, and then the inner frames of the mouths of multiple filter bags are assembled together through a large outer frame. In the prior art, the mouths of adjacent filter bags (including inner frames) are riveted together, and multiple filter bags are assembled together through an outer frame. Both are performed manually, which is inefficient and has a low degree of automation. In addition, the volume of the riveting device is relatively large, and the riveting process is not stable enough. 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, and various components operate stably. It can rivet adjacent long sides of multiple products together, and can also assemble multiple inner frames to the outer frame group by reinforcing them from the periphery through an outer frame, that is, it can realize automatic riveting and assembly of multiple products, has a high degree of automation, high efficiency, and is suitable for mass production.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide an automatic riveting machine for filter bag assembly, the riveting machine includes a frame, a group of conveying frames, a supporting frame, a riveting base, a plurality of riveting devices, a first clamping mechanism, a moving 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 along the Z direction, a Y-direction translation driving mechanism capable of driving the riveting device to move along the Y direction, and an X-direction translation driving mechanism capable of driving the moving seat to move along the X direction; The movable seat is installed on the conveying frame, and the first clamping mechanism and the material shifting mechanism are both fixedly installed on the movable seat, the first clamping mechanism clamps the product from both sides and drives the movable seat to translate along the X direction through the X-direction translation driving mechanism, and a group of products are shifted through the material shifting mechanism and driven to translate along the X direction through the X-direction translation driving mechanism; 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; The support frame is mounted on the frame, and the second clamping mechanism and the plurality of riveting devices are fixedly mounted on the riveting base; the Z-direction translation drive mechanism is mounted on the support frame, and the riveting base is mounted on its power output end and can drive the riveting base to rise and fall along the Z direction; the Y-direction translation drive mechanism is mounted on the riveting base and can drive the riveting device to translate along the Y direction to rivet the product.

[0005] Furthermore, the group of conveying racks includes two conveying racks parallel to each other, and the distance between the two conveying racks can be adjusted by a first width adjustment mechanism.

[0006] Further, the group of conveyor frames includes two conveyor frames parallel to each other, the X-axis translation drive mechanism includes an X-axis drive motor, multiple transmission wheels, a drive shaft, a first conveyor belt and a second conveyor belt, the power output end of the X-axis drive motor is connected to a transmission wheel, the middle and both ends of the drive shaft are equipped with the transmission wheels, the first conveyor belt is equipped with the transmission wheel at the end of the X-axis drive motor and the transmission wheel in the middle of the drive shaft; the side of each of the conveyor frames is also provided with the transmission wheel, the movable seat is fixed to the second conveyor belt, and the second conveyor belt is also wound around the transmission wheel at the end of the drive shaft and the transmission wheel on the side of the conveyor frame.

[0007] Furthermore, the first clamping mechanism is provided with two and is respectively located on the movable seats of the two conveying frames, each of the first clamping mechanisms comprises a first clamping driving cylinder and a clamping plate, the clamping plate is installed at the power output end of the first clamping driving cylinder, and the first clamping driving cylinder drives the clamping plate to translate along the Y direction to clamp the product from the side; There are two material-pickup mechanisms, which are respectively located on the movable seats of the two conveyor frames. Each of the material-pickup mechanisms includes a material-pickup driving cylinder and a material-pickup arm. The material-pickup driving cylinder is a rotary cylinder. One end of the material-pickup arm is installed at the power output end of the material-pickup driving cylinder. The material-pickup driving cylinder drives the material-pickup arm to rotate and pry the product.

[0008] Furthermore, the upper surface of the conveyor frame is provided with a plurality of transverse rollers for facilitating the sliding of the product; a middle section of the conveyor frame is also provided with a plurality of longitudinal rollers, through which the filter bag is firmly bonded to the inner frame of its mouth during the movement of the product.

[0009] Furthermore, the second clamping mechanism includes a second clamping drive cylinder and a pneumatic clamp. The pneumatic clamp is installed at the power output end of the second clamping drive cylinder. The distance between the two jaws of the pneumatic clamp gradually increases from top to bottom. The pneumatic clamp is driven by the second clamping drive cylinder to clamp one side of the mouth of adjacent products together.

[0010] Furthermore, the riveting device is provided with two groups, the Y-direction translation drive mechanism comprises a Y-direction drive motor and a second screw rod, the front section and the rear section of the second screw rod have threads with opposite rotation directions, each of the riveting devices is connected with a nut, and the nut is respectively mounted on the front section and the rear section of the second screw rod, and the second screw rod is driven to rotate by the Y-direction drive motor, thereby finally driving the two riveting devices closer or farther away.

[0011] Further, 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, and 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. The piercing assembly is driven by the right driving unit to translate to the left to pierce the product to form a piercing needle, and the rivet knife is driven by the left driving unit to translate to the right to rivet the piercing needle to the product.

[0012] Furthermore, the puncture assembly includes a puncture seat, a puncture knife, a pre-load plate and an elastic member. The puncture seat is fixedly mounted on the power output end of the right drive unit, the pre-load plate is mounted on the surface of the puncture seat through a first guide column, the two ends of the elastic member are respectively pressed against the surface of the pre-load plate and the puncture seat, the root of the puncture knife is fixed to the lower part of the puncture seat, and the head of the puncture knife passes through the pre-load plate.

[0013] Furthermore, one end of the conveying rack is also docked with the outer frame assembly device, and the outer frame assembly device includes an assembly base, two movable racks, a movable plate, an assembly translation drive cylinder and a second width adjustment mechanism. One end of the assembly translation drive cylinder is connected to the movable plate, and the movable plate is driven by the assembly translation drive cylinder to slide along the surface of the assembly base; the movable rack is located on both sides of the movable plate, and the distance between the two movable racks can be adjusted by the second width adjustment mechanism.

[0014] The beneficial effects of the present invention are: The present invention comprises a frame, a group of conveying frames, a supporting frame, a riveting base, a plurality of riveting devices, a first clamping mechanism, a moving 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 along the Z direction, a Y-direction translation driving mechanism capable of driving the riveting device to translate along the Y direction, and an X-direction translation driving mechanism capable of driving the moving seat to translate along the X direction. Therefore, the present invention can rivet the adjacent long sides of a plurality of products together, and can also assemble a plurality of inner frames to the outer frame group by reinforcing the outer periphery through an outer frame, that is, can realize automatic riveting and assembly of a plurality of products, with a high degree of automation and high efficiency, and is suitable for mass production. Furthermore, in the present invention, the distance between the two conveying racks can be adjusted by the first width adjustment mechanism, the distance between the two moving racks can be adjusted by the second width adjustment mechanism, and the two riveting devices can be driven to different positions by the Y-axis driving mechanism. Therefore, the riveting machine can realize the riveting and assembly of products of different sizes and specifications, thereby improving the versatility of the equipment; Furthermore, the riveting device of the present invention comprises a riveting frame, a riveting cavity, a piercing assembly, a right driving unit, a riveting knife and a left driving unit, wherein the piercing assembly comprises a piercing knife and a pre-pressing plate, and 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 pushes the piercing knife to pierce the product to form a puncture needle, and then the left driving unit drives the riveting knife to translate rightward to rivet the product; therefore, the present invention can realize automatic riveting of the product through the design of the riveting cavity, the piercing assembly and the riveting knife, and the whole device has stable performance and small size; Furthermore, the puncture assembly of the present invention includes a puncture seat, a puncture knife, a pre-pressing plate and an elastic member. Before riveting, the right driving unit will drive the pre-pressing plate to push the product to the surface of the riveting cavity. During this process, the pre-pressing plate will slowly push the product to the left through the elastic member to make it contact with the riveting cavity, avoiding crushing the product by sudden force.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is one of the structural schematic diagrams of the present invention; Figure 2 This is the second structural schematic diagram of the present invention; Figure 3 It is the third structural schematic diagram of the present invention; Figure 4 It is one of the structural schematic diagrams of the conveying frame of the present invention; Figure 5 This is the second structural schematic diagram of the conveying frame of the present invention; Figure 6 is a structural schematic diagram of a first clamping mechanism of the present invention; Figure 7 It is a structural schematic diagram of the material shifting mechanism of the present invention; Figure 8 It is a structural schematic diagram of the material pressing mechanism of the present invention; 9 is a schematic structural diagram of a second clamping mechanism of the present invention; Fig.10 One of the structural schematic diagrams of the riveting device of the present invention; Fig.11This is the second structural schematic diagram of the riveting device of the present invention; Fig.12 This is the second structural schematic diagram of the riveting device of the present invention; Fig.13 is a front view of the riveting device of the present invention; Fig.14 is a cross-sectional view of the riveting device of the present invention (cut along the axial direction of the first guide column); Fig.15 It is one of the top views of the piercing knife and the riveting knife of the riveting device of the present invention; Fig.16 The second top view of the piercing knife and the riveting knife of the riveting device of the present invention; Fig.17 is a riveting process diagram of the riveting device of the present invention; Fig.18 It is one of the structural schematic diagrams of the outer frame assembly device of the present invention; Fig.19 This is the second structural schematic diagram of the outer frame assembly device of the present invention; The parts in the accompanying drawings are marked as follows: Product 100, filter bag 1001, inner frame 1002, needle 1003, outer frame 200; Riveting device 1, riveting frame 11, pusher claw 111, riveting cavity 12, puncture assembly 13, puncture seat 131, puncture knife 132, puncture blade 1321, arc surface 1322, step surface 1323, pre-pressing plate 133, elastic member 134, first guide column 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 column 17, third guide column 18, fourth guide column 19; distance D between the two step surfaces, width W of the right end of the riveting knife; Frame 2, conveying frame 3, transverse roller 31, longitudinal roller 32, supporting frame 4, riveted base 5; A first clamping mechanism 6, a first clamping driving cylinder 61, a clamping plate 62, and a moving seat 7; The second clamping mechanism 8, the second clamping driving cylinder 81, and the pneumatic clamping jaws 82; Material shifting mechanism 9, material shifting driving cylinder 91, material shifting arm 92; A material pressing mechanism 10, a material pressing driving cylinder 101, and a material pressing plate 102; Z-direction translation driving mechanism 20, Y-direction translation driving mechanism 30, Y-direction driving motor 301, and second screw rod 302; X-direction translation drive mechanism 40, X-direction drive motor 401, transmission wheel 402, drive shaft 403, first conveyor belt 404, second conveyor belt 405, guide wheel 406; A first width adjustment mechanism 50, a first adjustment hand wheel 501, a first screw rod 502, a gear 503, and a transmission shaft 504; Outer frame assembly device 60 , assembly base 601 , moving wheels 6011 , support legs 6012 , moving frame 602 , positioning block 6021 , moving plate 603 , assembly translation drive cylinder 604 , second adjustment hand wheel 6051 , and third screw rod 6052 . DETAILED DESCRIPTION

[0017] The following is a specific embodiment of the present invention, and those skilled in the art can easily understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed by the present invention.

[0018] The position descriptions such as up, down, left, and right in this embodiment are based on the orientations in the drawings and have no special meanings and are not intended to limit the protection scope of the present invention.

[0019] Embodiment: An automatic riveting machine for filter bag assembly, such as Figures 1 to 19 As 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 moving 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 along the Z direction, a Y-direction translation driving mechanism 30 capable of driving the riveting device 1 to translate along the Y direction, and an X-direction translation driving mechanism 40 capable of driving the moving seat 7 to translate along the X direction; The movable seat 7 is installed on the conveying frame 3, and the first clamping mechanism 6 and the material shifting mechanism 9 are both fixedly installed 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 driving mechanism 40, and a group of products is shifted through the material shifting mechanism 9 and driven to translate along the X direction through the X-direction translation driving 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; like Figures 1 to 5 As shown, the support frame 4 is mounted on the frame 2, 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 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.

[0020] like Figures 1 to 5 As shown, the group of conveying racks includes 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. The first width adjustment mechanism 50 includes a first adjustment hand wheel 501, two first screw rods 502, a gear 503 and a transmission shaft 504. The threads of the front section and the rear section of each first screw rod 502 are opposite. The two sides of the lower end of each conveying rack 3 are threadedly connected with 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 meshed with the gears at both ends of the transmission shaft. The first adjustment hand wheel 501 is connected to the end of one of the first screw rods 502 and can drive the first screw rod 502 to rotate and then drive the two conveying racks 3 to approach or move away at the same time. Of course, other first width adjustment mechanisms can also be used as long as the adjustment of the distance between the two conveying racks can be achieved.

[0021] like Figure 1 arrive Figure 5 As shown, the group of conveyor frames includes two conveyor frames 3 parallel to each other, the X-direction translation drive mechanism 40 includes an X-direction drive motor 401, multiple 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 equipped with the transmission wheels 402, the first conveyor belt 404 is equipped with the transmission wheel 402 at the end of the X-direction drive motor 401 and the transmission wheel 402 in the middle of the drive shaft 403; the side of each of the conveyor frames 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 conveyor frame 3. The X-direction driving motor 401 drives the driving shaft 403 to rotate through the cooperation of the transmission wheel 402 and the first conveyor belt, and then drives the moving seat 7 to translate along the X-direction through the cooperation of the transmission wheel 402 and the second conveyor belt 405. The X-direction translation driving mechanism 40 in this embodiment also includes a guide wheel 406 arranged on the side of the conveyor frame, and in order to obtain the force in the required direction, the second conveyor belt will also bypass the guide wheel 406.

[0022] like Figure 4 and Figure 6 As shown, two first clamping mechanisms 6 are provided, and are respectively located on the moving seats of the two conveying frames 3, each of the first clamping mechanisms 6 comprises a first clamping driving cylinder 61 and a clamping plate 62, and the clamping plate 62 is installed at the power output end of the first clamping driving cylinder 61, and the first clamping driving cylinder 61 drives the clamping plate 62 to translate along the Y direction to clamp the product from the side; like Figure 4 and Figure 7 As shown, two material-pickup mechanisms 9 are provided and are respectively located on the movable seats of the two conveyor frames 3. Each of the material-pickup mechanisms 9 includes a material-pickup driving cylinder 91 and a material-pickup arm 92. The material-pickup driving cylinder 91 is a rotary cylinder. One end of the material-pickup arm 92 is installed at the power output end of the material-pickup driving cylinder 91. The material-pickup driving cylinder 91 drives the material-pickup arm 92 to rotate and pry the product.

[0023] like Figure 4 and Figure 8 As shown, there are two pressing mechanisms 10, which are respectively located on both sides of the conveying frame. Each of the pressing mechanisms 10 includes a pressing drive cylinder 101 and a pressing plate 102. The pressing plate 102 is installed at the power output end of the pressing drive cylinder 101. The pressing drive cylinder 101 drives the pressing plate 102 to translate along the Z direction to clamp the product from top to bottom on the surface of the conveying frame.

[0024] like Figure 4 As shown, the upper surface of the conveyor frame 3 is provided with a plurality of transverse rollers 31 for facilitating the sliding of the product, which play a guiding and supporting role, so that the translation process of the product on the conveyor frame along the X direction is smoother and the friction is reduced; a section in the middle of the conveyor frame 3 is also provided with a plurality of longitudinal rollers 32, and the filter bag 1001 and the short side of the inner frame 1002 at its mouth are firmly bonded by the longitudinal rollers 32 during the movement of the product. In the upstream process, the outer peripheral surface of the inner frame 1002 will be coated with glue, and then the inner frame will be glued to the mouth of the filter bag. Since the upstream process will clamp the long side with the mouth of the filter bag, and the short side may not be firmly bonded to the mouth, the short side is squeezed by the longitudinal rollers during the translation process of the product to firmly bond the short side to the mouth of the filter bag.

[0025] like Figure 4 and Fig. 9 As shown, the second clamping mechanism 8 includes a second clamping drive cylinder 81 and a pneumatic clamp 82. The pneumatic clamp 82 is installed at the power output end of the second clamping drive cylinder 81. The distance between the two jaws of the pneumatic clamp 82 gradually increases from top to bottom. The pneumatic clamp 82 is driven by the second clamping drive cylinder 81 to clamp one side of the mouth of adjacent products together.

[0026] like Figures 10 to 17As shown, the riveting device 1 is provided with two groups, the Y-direction translation drive mechanism 30 comprises a Y-direction drive motor 301 and a second screw rod 302, the front section and the rear section of the second screw rod 302 have threads with opposite rotation directions, each of the riveting devices 1 is connected with a nut, and the nut is respectively mounted on the front section and the rear section of the second screw rod 302, and the second screw rod 302 is driven to rotate by the Y-direction drive motor 301 to finally drive the two riveting devices 1 closer or farther. In this embodiment, the Z-direction translation drive mechanism is a drive mechanism in which the Z-direction drive motor and the screw rod cooperate, which is a prior art, so it is not described in detail.

[0027] like Figures 10 to 17 As shown, the riveting device 1 includes 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 installed on the riveting frame 11, the piercing assembly 13 is located on the right side of the riveting cavity 12, and the riveting knife 15 is located on the left side of the riveting cavity 12. The piercing assembly 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 assembly to translate to the left to pierce the inner frame 1002 of the mouth of 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 mouth of two adjacent products.

[0028] In this embodiment, the puncture assembly 13 includes a puncture seat 131, a puncture knife 132, a pre-load 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-load 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 are respectively pressed against the surface of the pre-load 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-load 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.

[0029] like Fig.10 As shown, a set of pusher claws 111 are provided on each side of the riveting device, each pusher claw comprises two claw arms, and the distance between the two claw arms gradually increases from top to bottom, i.e., a flared mouth 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.

[0030] In this embodiment, Fig.12 As shown, the root of the puncture knife 132 is detachably connected to the puncture seat 131 via a bolt 136. When the puncture knife is worn or different products require different puncture knives, the puncture knife can be easily replaced.

[0031] like Fig.15 and Fig.16 As shown, the front end of the puncture knife 132 is divided into two puncture blades 1321, the left end surface of the puncture blade is an arc surface 1322, the inner side surface of the puncture blade forms a step surface 1323, and the distance between the roots of the two arc surfaces is smaller than the distance at the opening.

[0032] The right drive unit 14 and the left drive unit 16 are respectively a cylinder, a hydraulic cylinder, an electric cylinder or a motor; the right drive unit is fixedly installed on the right side of the riveting frame 11; the left drive unit is fixedly installed on the left side of the riveting frame 11. In this embodiment, the right drive unit 14 and the left drive unit 16 both use oil cylinders, which are a type of hydraulic cylinders.

[0033] The left end of the riveting knife 15 is fixedly mounted on the riveting seat 152, and the riveting seat 152 is mounted on the power output end of the left drive unit. The right end of the riveting knife 15 passes through the riveting cavity 12. Fig.15 and Fig.16 As shown, the end of the riveting knife 15 is divided into two riveting blades 151, and the right end surface of the riveting blade 151 includes a plane 1511 and an inclined surface 1512 connected to each other, and the inclined surface is inclined outward; The distance D between the two step surfaces is consistent with the width W of the right end of the riveting knife.

[0034] The left end of the riveting knife 15 is detachably connected to the riveting seat 152 via a bolt 136. When the riveting knife is worn or different riveting knives are required for riveting different products, the riveting knife can be easily replaced.

[0035] Since the puncture knife and the puncture seat as well as the riveting knife and the riveting seat are detachably connected and easy to replace, when riveting different products, only different puncture knives and riveting knives need to be replaced, thereby improving the versatility of the riveting device.

[0036] like Figures 11 to 17 As 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; and a fourth guide post 19 is provided between the right driving unit 14, the puncture seat 131 and the riveting cavity 12. The second guide post, the third guide post, the fourth guide post and the first guide post mentioned above all play a guiding role in the translation process of the corresponding components.

[0037] In this embodiment, Fig.18 and Fig.19As shown, one end of the conveying frame 3 is also docked with the outer frame assembly device 60, and the outer frame assembly device 60 includes an assembly base 601, two mobile frames 602, a mobile plate 603, an assembly translation drive cylinder 604 and a second width adjustment mechanism, one end of the assembly translation drive cylinder 604 is connected to the mobile plate 603, and the mobile plate is driven to slide along the surface of the assembly base 601 by the assembly translation drive cylinder 604; the mobile frame 602 is located on both sides of the mobile plate 603, and the distance between the two mobile frames 602 can be adjusted by the second width adjustment mechanism. In this embodiment, the second width adjustment mechanism includes a second adjustment hand wheel 6051 and a third screw rod 6052, the threads of the front section and the rear section of each third screw rod 6052 are opposite, and both sides of the lower end of each mobile frame 602 are threadedly connected to the third screw rod, and the second adjustment hand wheel 6051 is connected to the end of the third screw rod 6052 and can drive the third screw rod 6052 to rotate, thereby realizing that the two mobile frames 602 are close or far away at the same time. The inner side of the mobile frame 602 is provided with a positioning block 6021, and the outer frame 200 can be placed on the positioning block 6021. The bottom of the assembly base 601 is provided with moving wheels 6011 and supporting feet 6012, which are convenient for carrying, moving and relatively fixing the outer frame assembly device.

[0038] The specific process is as follows: assemble the translation drive cylinder 604 to drive the mobile plate to be located at the section close to the conveyor frame 3, then the material-dispensing mechanism 9 dispenses a group of products into the outer frame 200 (the four sides of the outer frame are pre-assembled, but one end of the fourth side is open) pre-placed on the mobile frame, and then assemble the translation drive cylinder 604 to drive the mobile plate 603 to retreat (i.e., to be in the Fig.18 ), and push the outer frame assembly device out (there are moving wheels, just push it out), so that there is space to close the fourth side, and then use other riveting devices to rivet the outer frame and the inner frame together to complete the assembly of a filter.

[0039] In this embodiment, the distance between the two conveying racks can be adjusted by the first width adjustment mechanism, and the distance between the two movable racks can be adjusted by the second width adjustment mechanism. In addition, the two riveting devices can be driven to different positions by the Y-axis driving mechanism. Therefore, this riveting machine can realize the riveting and assembly of products of different sizes and specifications, thereby improving the versatility of the equipment.

[0040] The working principle and working process of the present invention: The filter is composed of multiple (taking 6 as an example) products 100 (including filter bags 1001 and inner frames 1002). The inner frames are pre-bonded to the inner side of the mouth of the filter bags in the upstream process. The riveting machine of the present invention then rivets the adjacent long sides of the products together. Finally, an outer frame is placed to rivet the inner frames of multiple products together with the outer frame.

[0041] The product 100 of the upstream process is placed at the end of the conveyor frame 3, and then the first clamping mechanism 6 clamps the product from both sides, and then the X-axis translation drive mechanism 40 drives the moving seat 7 to translate and move the product to the riveting station (that is, directly below the support frame). This product is called the first product, and then the pressing drive cylinder drives the pressing plate into place to press the first product onto the conveyor frame; similarly, the second product is moved to the riveting station, and then the Z-axis translation drive mechanism 20 drives the riveting base 5 to descend, and then the second clamping drive cylinder 81 drives the pneumatic clamp 82 to descend into place to clamp the inner frames of the adjacent long sides of the two adjacent products together, and then the riveting device descends into place, and its own claws 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 clamp 82 to lift up, and the riveting device 1 rivets the inner frames 1002 of the adjacent sides of the two products 100 together. The Y-axis translation drive mechanism will drive the riveting device to translate along the Y-axis, so as to achieve riveting at the required position; similarly, the third product is transported, and the inner frames of the adjacent long sides of the second and third products are riveted together, until the long sides of the required number of products (for example, 6 products) are riveted together to form a group of products; then, the material-dispensing drive cylinder 91 drives the material-dispensing arm 92 to rotate to the inside of the product or the outside of the last product, and then the X-axis translation drive mechanism 40 drives the moving seat 7 to translate and transport the above group of products to the other end of the conveying rack. At this time, the outer frame assembly device 60 is docked with the conveying rack 3, and the above group of products will enter the mobile rack 602 on which the outer frame is pre-placed, and then the outer frame assembly device 60 is pushed outward to move, and the fourth side of the outer frame is closed, and then other riveting devices are used to rivet the outer frame and the inner frame together to complete the assembly of a filter.

[0042] The process of riveting adjacent long sides of adjacent products together is: in, Fig.17 In the figure, the right side shows the product state before riveting, after puncture and after riveting from top to bottom, and the left side shows the puncture process and riveting process from top to bottom. The function of the riveting device is to change the product from the state before riveting to the state after riveting.

[0043] The riveting cavity is fixedly installed on the riveting frame and its position is relatively fixed. Fig.17 As shown, the product is located between the riveting cavity and the pre-pressing plate. The right driving unit pushes the piercing seat to move to the left, which drives the pre-pressing plate to push the product to the riveting cavity position (the pre-pressing plate slowly pushes the product to the left through the elastic member to make it contact with the riveting cavity, avoiding the product from being crushed by sudden force). The right driving unit continues to move forward until the piercing knife is driven to pierce the product to form a piercing needle 1003 (i.e. Fig.17The product will become punctured), the right drive unit stops moving. Then the left drive unit moves to the right, pushing the riveting seat to move and then driving the riveting knife to move to the right to rivet the product. After the riveting is completed (i.e. Fig.17 The product will become riveted), the right drive unit returns to its original position, and the left drive unit continues to push to the right until the product is pushed out of the riveting cavity, and then the left drive unit returns and the riveting is completed.

[0044] The above descriptions are merely embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structures made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic riveting machine for filter bag assembly, characterized in that: The riveting machine comprises a frame (2), a group of conveying frames, a supporting frame (4), a riveting base (5), a plurality of riveting devices (1), a first material clamping mechanism (6), a movable seat (7), a second material 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); 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 shift in the X direction through the X-direction translation driving mechanism (40); and a group of products are shifted through the material shifting mechanism (9) and the material shifting mechanism (9) is driven to shift in the X direction through the X-direction translation driving mechanism (40); The material 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 material pressing mechanism (10); The support frame (4) is mounted on the frame (2); 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.

2. The automatic riveting machine for filter bag assembly according to claim 1, characterized in that: 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 filter bag assembly according to claim 1, characterized in that: The group of conveyor frames comprises two conveyor 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 part and both ends of the drive shaft (403) are both provided with the transmission wheels (402), the first conveyor belt (404) is provided with the transmission wheel (402) at the end of the X-direction drive motor (401) and the transmission wheel (402) at the middle part of the drive shaft (403); the side of each of the conveyor frames (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) at the side of the conveyor frame (3).

4. The automatic riveting machine for filter bag assembly according to claim 1, characterized in that: Two of the first clamping mechanisms (6) are provided and are respectively located on the movable seats of the two conveying frames (3). Each of the first clamping mechanisms (6) comprises 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 along the Y direction to clamp the product from the side. Two material-pickup mechanisms (9) are provided and are respectively located on the movable seats of the two conveying frames (3). Each of the material-pickup mechanisms (9) comprises a material-pickup driving cylinder (91) and a material-pickup arm (92). The material-pickup driving cylinder (91) is a rotary cylinder. One end of the material-pickup arm (92) is mounted on the power output end of the material-pickup driving cylinder (91). The material-pickup driving cylinder (91) drives the material-pickup arm (92) to rotate and pick the product.

5. The automatic riveting machine for filter 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 by means of the longitudinal rollers (32) during the movement of the product.

6. The automatic riveting machine for filter bag assembly according to claim 1, characterized in that: The second material clamping mechanism (8) comprises a second material clamping driving cylinder (81) and a pneumatic clamp (82). The pneumatic clamp (82) is installed at the power output end of the second material clamping driving cylinder (81). The distance between the two jaws of the pneumatic clamp (82) gradually increases from top to bottom. The pneumatic clamp (82) is driven by the second material clamping driving cylinder (81) to clamp one side of the mouth of adjacent products together.

7. The automatic riveting machine for filter bag assembly according to claim 1, characterized in that: The riveting devices (1) are provided with two groups, the Y-direction translation drive mechanism (30) comprises a Y-direction drive motor (301) and a second screw rod (302), the front section and the rear section of the second screw rod (302) having threads with opposite rotation directions, each of the riveting devices (1) is connected to a nut, the nut being respectively fitted on the front section and the rear section of the second screw rod (302), and the second screw rod (302) is driven to rotate by the Y-direction drive motor (301), thereby finally driving the two riveting devices (1) to move closer or farther away.

8. The automatic riveting machine for filter bag assembly according to claim 1, characterized in that: The riveting device (1) comprises a riveting frame (11), a riveting cavity (12), a piercing assembly (13), a right drive unit (14), a riveting knife (15) and a left drive 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 drive unit (14); the piercing knife (15) is mounted on the power output end of the left drive unit (16); the right drive 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 drive unit drives the rivet knife to translate to the right to rivet the piercing needle onto the product.

9. The automatic riveting machine for filter bag assembly according to claim 8, characterized in that: The puncture assembly (13) comprises 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) via a first guide column (135); 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.

10. The automatic riveting machine for filter bag assembly according to claim 1, characterized in that: One end of the conveying frame (3) is also connected to the outer frame assembly device (60), and the outer frame assembly device (60) comprises an assembly base (601), two movable frames (602), a movable plate (603), an assembly translation drive cylinder (604) and a second width adjustment mechanism. One end of the assembly translation drive cylinder (604) is connected to the movable plate (603), and the movable plate is driven to slide along the surface of the assembly base (601) by the assembly translation drive cylinder (604); the movable frames (602) are located on both sides of the movable plate (603), and the distance between the two movable frames (602) can be adjusted by the second width adjustment mechanism.

Images