Bag filter automatic assembly production line and assembly method

Abstract

The present invention discloses an automatic assembly production line and an assembly method for a bag filter. The production line includes an inner frame feeding line, an inner frame glue spraying machine, a filter bag feeding line, a filter bag and inner frame pre-assembly machine, a material taking and clamping device, a riveting device, a riveting conveying line and an outer frame assembly device. The filter bag and inner frame pre-assembly machine includes a positioning and bag opening device and a flipping device; the pre-assembled filter bag is moved to the riveting conveying line through the material taking and clamping device, and the pre-assembled filter bag can move along the riveting conveying line. The inner frames at the mouth parts of adjacent filter bags are riveted together through the riveting device, and the inner frames at the mouth parts of multiple filter bags are assembled with the same outer frame through the outer frame assembly device. Each mechanism of the present invention operates stably, and can realize automatic material taking of the inner frame, glue spraying, automatic clamping and pressing of the inner frame and the mouth part of the filter bag, automatic riveting of the inner frames at the mouth parts of adjacent filter bags, etc., realizing the automatic and continuous assembly of the entire bag filter.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical devices, and particularly relates to an automatic assembly production line and an assembly method for a bag filter. Background Art

[0002] Bag filters are used in fresh air filtration systems or equipment. A bag filter is assembled by arranging multiple (such as 6) filter bags side by side. The whole process includes multiple processes, roughly as follows: one end of the filter bag has an opening. First, the outer peripheral surface of the inner frame is sprayed with glue, and then the glued inner frame is placed inside the opening of the filter bag and the two are pressed and clamped together (which can be called the composite clamping of the filter bag and the inner frame). After that, two adjacent filter bags (mainly the inner frames) are riveted together in sequence, and then multiple inner frames at the openings of the filter bags are assembled together through a large outer frame. To automate the above process, it is necessary to automate each process and the connection between adjacent processes. In the prior art, the above process is generally carried out by manual operation or one process uses an automated device, and the connection between adjacent processes depends on manual operation, which has problems such as low efficiency, low automation degree, and high labor costs. Summary of the Invention

[0003] The main technical problem to be solved by the present invention is to provide an automatic assembly production line and an assembly method for a bag filter. Each mechanism operates stably, and can realize automatic material taking, glue spraying of the inner frame, automatic clamping and pressing of the inner frame and the opening of the filter bag, automatic riveting of the inner frames at the openings of adjacent filter bags, etc., reduce manual labor, improve the automation degree and efficiency of the above process, and realize the automatic and continuous assembly of the whole bag filter.

[0004] To solve the above technical problem, one technical solution adopted by the present invention is: to provide an automatic assembly production line for a bag filter, the production line includes an inner frame feeding line, an inner frame glue spraying machine, a filter bag feeding line, a filter bag and inner frame pre-assembly machine, a material taking and clamping device capable of moving along the XYZ three axes, a riveting device, a riveting conveying line, and an outer frame assembly device. The inner frame glue spraying machine includes a transfer device, a glue spraying positioning table, and multiple glue spraying devices. The inner frame is automatically fed through the inner frame feeding line, the inner frame on the inner frame feeding line is moved to the glue spraying positioning table through the transfer device, and the outer side surface of the inner frame is sprayed with glue through the glue spraying device;

[0005] The filter bag and inner frame pre-assembly machine includes a positioning and bag opening device and a flipping device;

[0006] The production line further includes a gantry, and the material taking and clamping device is installed on the gantry; the positioning and bag opening device grabs the uppermost filter bag from the filter bag feeding line and opens the mouth of the filter bag, the flipping device drives the filter bag to rotate to make its mouth face upward, and the material taking and clamping device grabs the inner frame from the inner frame gluing machine and presses it against the inner side of the mouth of the filter bag;

[0007] The material taking and clamping device moves the pre-assembled filter bag to the riveting conveying line, and the pre-assembled filter bag can move along the riveting conveying line. The inner frames at the mouths of adjacent filter bags are riveted together through the riveting device. The outer frame assembling device can be docked with one end of the riveting conveying line, and the inner frames at the mouths of multiple filter bags are assembled with the same outer frame through the outer frame assembling device.

[0008] Furthermore, the gluing device is a glue spraying head capable of moving in the XY plane, and the four inner side surfaces of the inner frame are sprayed with glue through the movable glue spraying head;

[0009] The transfer device includes a transfer frame and a transfer lifting drive module, a transfer translation drive module and a grasping component installed on the transfer frame. The grasping component is driven to lift by the transfer lifting drive module and is driven to translate by the transfer translation drive module.

[0010] Furthermore, the positioning and bag opening device includes a pre-assembly machine table. A positioning platform, an upper bag opening mechanism and a bag taking mechanism for grasping the filter bag and capable of translating along the X-axis and Z-axis are provided on the pre-assembly machine table. A plurality of positioning substrates, a lower bag opening mechanism and a bag pushing mechanism are provided at the front end of the positioning platform;

[0011] The bag pushing mechanism includes a bag pushing plate and a bag pushing translation drive unit capable of driving the bag pushing plate to translate. The bag pushing plate is driven to translate along the X direction through the bag pushing translation drive unit;

[0012] The filter bag is grabbed to the positioning platform through the bag taking mechanism, and the bag pushing plate is driven to translate by the bag pushing translation drive unit to cooperate with the positioning substrate to accurately position the filter bag; the upper layer of the filter bag is inserted and moved upward through the upper bag opening mechanism and the lower layer of the filter bag is inserted and moved downward through the lower bag opening mechanism to open the mouth of the filter bag;

[0013] The flipping device includes a flipping frame, two sets of bag-supporting devices provided on the flipping frame, a Y-direction bag-supporting driving mechanism capable of driving the two bag-supporting devices to approach or move away from each other in the Y direction, a flipping driving mechanism capable of driving the flipping frame to flip, and a flipping-frame translation driving mechanism for driving the flipping frame to translate in the X direction. The mouths of the filter bags are kept in an open state by the two bag-supporting devices. The flipping driving mechanism drives the flipping frame to flip, driving the filter bags to flip so that their mouths face upward. The flipping-frame translation driving mechanism drives the flipping frame to translate in the X direction;

[0014] The material-taking and clamping device includes a material-taking base, two material-taking bottom plates, a set of intermediate inner-frame clamping mechanisms, two sets of side inner-frame clamping mechanisms, an X-direction material-taking and clamping translation driving mechanism, and a variable-spacing driving mechanism. The two material-taking bottom plates are both installed on the bottom surface of the material-taking base, and the X-direction material-taking and clamping translation driving mechanism enables the two material-taking bottom plates to approach or move away from each other in the X direction;

[0015] The intermediate inner-frame clamping mechanism is fixed at the middle position of the material-taking bottom plate. The two sets of side inner-frame clamping mechanisms are mirror-symmetrical with the intermediate inner-frame clamping mechanism as the center and are movably installed on the material-taking bottom plate. The intermediate inner-frame clamping mechanism and the two sets of side inner-frame clamping mechanisms each include two inner-frame support and clamping assemblies installed on the material-taking bottom plate. The two inner-frame support and clamping assemblies of each side inner-frame clamping mechanism are both installed on the same connecting plate at the same time. The variable-spacing driving mechanism can drive the two connecting plates to approach or move away from each other in the Y direction;

[0016] Each inner-frame support and clamping assembly includes an inner side support plate and a long-side outer clamping unit. The upper end of the long-side outer clamping unit is installed on the upper part of the inner side support plate. The inner frames are supported from the inside to the outside by all the inner side support plates, and the long sides of the inner frames and the mouths of the filter bags are pressed and clamped by the long-side outer clamping units.

[0017] Furthermore, the upper bag-opening mechanism includes an upper needle-type suction cup and an upper bag-opening driving linear module. The upper needle-type suction cup is installed at the power output end of the upper bag-opening driving linear module, and the upper bag-opening driving linear module drives the upper needle-type suction cup to move up and down;

[0018] The lower bag-opening mechanism includes a lower needle-type suction cup and a lower bag-opening driving cylinder. The lower needle-type suction cup is installed at the power output end of the lower bag-opening driving cylinder, and the lower bag-opening driving cylinder drives the lower needle-type suction cup to move up and down;

[0019] The bag-taking mechanism includes a connecting arm and a suction cup group composed of a plurality of needle-type suction cups. The suction cup group is installed at the lower end of the connecting arm.

[0020] Furthermore, the bag supporting device includes an inserting plate, a fixed inserting piece, a movable inserting piece mounted on the inserting plate, and an inserting piece translation driving linear module capable of driving the movable inserting piece to lift. The fixed inserting piece is fixed at one end of the inserting plate, and the movable inserting piece is driven to lift by the inserting piece translation driving linear module.

[0021] Furthermore, a short-side outer clamping unit is provided on the inner side surface of the inner side support plate of the side-taking inner frame clamping mechanism, and the short sides of the inner frame and the mouth of the filter bag are pressed and clamped by the short-side outer clamping units on both sides.

[0022] The short-side outer clamping unit includes a short-side outer clamping driving cylinder and a vertical clamping plate, and the vertical clamping plate is mounted on the power output end of the short-side outer clamping driving cylinder.

[0023] The long-side outer clamping unit includes a long-side outer clamping driving cylinder, an inverted "T"-shaped clamping plate, and a pin shaft. The upper end of the "T"-shaped clamping plate is rotatably connected to one side of the bottom of the long-side outer clamping driving cylinder as a fulcrum. A cavity is provided at the middle position of the "T"-shaped clamping plate, and the pin shaft passes through the cavity and is rotatably connected to the end of the push rod of the long-side outer clamping driving cylinder.

[0024] By driving the push rod of the long-side outer clamping driving cylinder to retract or extend, the upper end of the "T"-shaped clamping plate will be driven to rotate around the above-mentioned fulcrum, and then the lower end of the "T"-shaped clamping plate will be driven to approach or move away from the inner side support plate.

[0025] Furthermore, the variable-distance driving mechanism includes a variable-distance driving motor, a variable-distance lead screw, and two variable-distance nuts. The power output end of the variable-distance driving motor is connected to one end of the variable-distance lead screw. The variable-distance lead screw is a bidirectional lead screw with different thread pitches. The two variable-distance nuts are respectively fixed on the two connecting plates, and the two variable-distance nuts are respectively sleeved on the left and right sections of the variable-distance lead screw. The material-taking bottom plate and the material-taking base are also connected by a slider rail structure.

[0026] Furthermore, the riveting conveyor line includes two parallel conveying frames. A set of elastic pieces is provided at the end section of each conveying frame. This set of elastic pieces includes two elastic pieces, an upper one and a lower one. The elastic pieces can be inserted into the outer frame located in the outer frame assembling device. The inner frame at the mouth of the filter bag enters the outer frame through between the elastic pieces.

[0027] Furthermore, the X-direction material-taking clamping and translation driving mechanism includes an X-direction material-taking clamping and translation driving motor, an X-direction lead screw, and two X-direction nuts. The power output end of the X-direction material-taking clamping and translation driving motor is connected to one end of the X-direction lead screw. The X-direction lead screw is a bidirectional lead screw with different thread pitches. The two X-direction nuts are respectively fixed on the two material-taking bottom plates, and the two X-direction nuts are respectively sleeved on the front and rear sections of the X-direction lead screw. The material-taking bottom plate and the material-taking base are also connected by a slider and rail structure.

[0028] The present invention also provides an assembly method for a filter using the above-mentioned automatic assembly production line for bag filters, including the following steps:

[0029] Step 1: The inner frame is conveyed to the required position through the inner frame feeding line. The transfer device moves the inner frame to the inner frame glue spraying machine, and the four outer sides of the inner frame are sprayed with glue through multiple glue spraying devices.

[0030] The filter bag is conveyed to the required position through the filter bag feeding line. The positioning and bag opening device grabs the uppermost filter bag from the filter bag feeding line and opens the mouth of the filter bag, and drives the filter bag to rotate through the flipping device so that its mouth faces upward.

[0031] Step 2: The material-taking clamping device moves along the XYZ axes, grabs the inner frame from the inner frame glue spraying machine, and presses it against the inner side of the mouth of the filter bag.

[0032] Step 3: The material-taking clamping device moves the pre-assembled filter bag to the riveting conveying line. The pre-assembled filter bag moves along the riveting conveying line, and the inner frames at the mouths of adjacent filter bags are riveted together through the riveting device.

[0033] Step 4: The outer frame assembly device can be docked with one end of the riveting conveying line. The riveted filter bags move along the riveting conveying line to the tail and enter the outer frame placed in the outer frame assembly device. The outer frame assembly device is used to assemble the inner frames at the mouths of multiple filter bags with the same outer frame to form a bag filter.

[0034] The beneficial effects of the present invention are:

[0035] The various mechanisms of the present invention operate stably, can realize automatic feeding, grabbing, automatic positioning, automatic opening, and automatic flipping of the filter bag, and can also realize automatic material taking of the inner frame and automatic clamping and pressing of the inner frame and the mouth of the filter bag. The inner frames at the mouths of adjacent filter bags are automatically riveted through the riveting device. Through the cooperation of the riveting conveying line and the outer frame assembly device, multiple filter bags are assembled onto one outer frame to form a bag filter. Therefore, the various mechanisms of the present invention operate stably, reduce manual labor, improve the automation degree and efficiency of the above process, and realize the automatic and continuous assembly of the entire bag filter.

[0036] The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and implement it according to the content 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

[0037] Figure 1 is a schematic structural diagram of the present invention;

[0038] Figure 2 is a schematic structural diagram of the inner frame spraying machine of the present invention;

[0039] Figure 3 is a schematic structural diagram of the transfer device of the present invention;

[0040] Figure 4 is one of the schematic structural diagrams of the inner frame pre-assembly machine of the present invention (viewed from one angle);

[0041] Figure 5 is the second schematic structural diagram of the inner frame pre-assembly machine of the present invention (viewed from another angle);

[0042] Figure 6 is one of the schematic structural diagrams of the positioning and bag-opening device of the present invention (viewed from one angle);

[0043] Figure 7 is the second schematic structural diagram of the positioning and bag-opening device of the present invention (viewed from another angle);

[0044] Figure 8 is one of the schematic structural diagrams of the positioning platform of the present invention (viewed from one angle);

[0045] Figure 9 is the second schematic structural diagram of the positioning platform of the present invention (viewed from another angle);

[0046] Figure 10 is a schematic structural diagram of the bag-pushing mechanism of the present invention;

[0047] Figure 11 is one of the schematic structural diagrams of the flipping device of the present invention (viewed from one angle);

[0048] Figure 12 is the second schematic structural diagram of the flipping device of the present invention (viewed from another angle);

[0049] Figure 13 is a schematic structural diagram of the gantry and the material-taking and clamping device of the present invention;

[0050] Figure 14 is a schematic structural diagram of the Z-direction beam and the material-taking and clamping device of the present invention;

[0051] Figure 15 is one of the schematic structural diagrams of the material taking and clamping device of the present invention;

[0052] Figure 16 is the second schematic structural diagram of the material taking and clamping device of the present invention (the material taking base is not installed for clearly seeing the internal structure);

[0053] Figure 17 is the side view of the material taking and clamping device of the present invention;

[0054] Figure 18 is the schematic structural diagram of the short - side outer clamping unit of the present invention;

[0055] Figure 19 is the schematic structural diagram at the gantry of the present invention;

[0056] Figure 20 is the schematic structural diagram at the Y - direction cross beam of the present invention;

[0057] Figure 21 is one of the schematic structural diagrams at the Z - direction beam of the present invention (seen from one angle);

[0058] Figure 22 is the second schematic structural diagram at the Z - direction beam of the present invention (seen from another angle)

[0059] Figure 23 is the schematic structural diagram at the riveting conveyor line and the outer frame assembly device of the present invention;

[0060] The marks of each part in the attached drawings are as follows:

[0061] Filter bag 1001, inner frame 1002, outer frame 200;

[0062] Inner frame feeding line 10, inner frame glue spraying machine 20, transfer device 201, transfer rack 20171, transfer lifting drive module 20172, transfer translation drive module 20173, grasping component 20174, glue spraying positioning table 202, glue spraying device 203, transfer table 204, outer frame assembly device 60, filter bag - inner frame pre - assembly machine 70, riveting device 80, riveting conveyor line 90, conveyor rack 901, elastic sheet 902;

[0063] Gantry 1, X-direction cross beam 11, Y-direction cross beam 12, Z-direction beam 13, X-direction inner frame translation driving mechanism 14, X-direction inner frame translation driving motor 141, driving shaft 142, first synchronous pulley 143, first synchronous belt 144, second synchronous belt 145, Y-direction inner frame translation driving mechanism 15, Y-direction inner frame translation driving motor 151, second synchronous pulley 152, third synchronous belt 153, Z-direction inner frame translation driving mechanism 16, Z-direction inner frame translation driving motor 161, driving wheel 162, upper idler pulley 163, lower idler pulley 164, belt 165, mounting seat 166;

[0064] Material taking and clamping device 2, material taking base 21, material taking bottom plate 22, intermediate inner frame clamping mechanism 23, inner frame support clamping assembly 231, inner side support plate 2311, step 23111, long side outer clamping unit 2312, long side outer clamping driving cylinder 23121, "T" type clamping plate 23122, pin shaft 23123, fulcrum 23124, cavity 23125, side inner frame clamping mechanism 24, connecting plate 241, X-direction kidney-shaped hole 2411, guiding pin 2412, X-direction material taking and clamping translation driving mechanism 25, X-direction material taking and clamping translation driving motor 251, X-direction lead screw 252, X-direction nut 253, variable pitch driving mechanism 26, variable pitch driving motor 261, variable pitch lead screw 262, variable pitch nut 263, short side outer clamping unit 27, short side outer clamping driving cylinder 271, vertical clamping plate 272

[0065] Positioning and bag opening device 3, pre-assembly machine table 31, positioning platform 32, positioning substrate 321, strip groove 322, upper bag opening mechanism 33, upper needle type suction cup 331, upper bag opening driving linear module 332, bag taking mechanism 34, connecting arm 341, suction cup group 342, lower bag opening mechanism 35, lower needle type suction cup 351, lower bag opening driving cylinder 352, bag pushing mechanism 36, bag pushing plate 361, bag pushing translation driving unit 362, bag pushing translation driving motor 3621, third synchronous pulley 3622, fourth synchronous belt 3623, bag pushing seat 3624, X-direction bag taking translation driving mechanism 37, Z-direction bag taking translation driving mechanism 38;

[0066] Turning device 4, turning frame 41, Y-direction bag supporting driving mechanism 42, Y-direction bag supporting driving motor 421, fourth synchronous pulley 422, fifth synchronous belt 423, turning driving mechanism 43, turning frame translation driving mechanism 44, first bag supporting device 45, inserting plate 451, fixed inserting piece 452, moving inserting piece 453, inserting plate translation driving linear module 454, second bag supporting device 46;

[0067] Filter bag feeding line 5. Specific embodiments

[0068] The following describes the specific embodiments of the present invention through specific examples. 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.

[0069] In this embodiment, descriptions of positions such as up, down, left, and right are based on the orientation in the drawings and have no special meaning, nor are they used to limit the protection scope of the present invention.

[0070] Embodiment: An automatic assembly production line for a bag filter, as Figures 1 to 4 shown, the production line includes an inner frame loading line 10, an inner frame glue spraying machine 20, a filter bag loading line 5, a filter bag-inner frame pre-assembly machine 70, a material taking and clamping device 2 capable of moving along the XYZ axes, a riveting device 80, a riveting conveying line 90, and an outer frame assembly device 60. The inner frame glue spraying machine 20 includes a transfer device 201, a glue spraying positioning table 202, and a plurality of glue spraying devices 203. The inner frame 1002 is automatically loaded through the inner frame loading line, and the inner frame on the inner frame loading line is moved to the glue spraying positioning table through the transfer device, and the outer side surface of the inner frame is sprayed with glue through the glue spraying device.

[0071] The filter bag-inner frame pre-assembly machine 70 includes a positioning and bag opening device 3 and a flipping device 4;

[0072] The production line further includes a gantry 1, and the material taking and clamping device 2 is installed on the gantry 1; the positioning and bag opening device 3 grabs the uppermost filter bag 1001 from the filter bag loading line and opens the mouth of the filter bag, the flipping device 4 drives the filter bag to rotate so that its mouth faces upward, and the material taking and clamping device 2 grabs the inner frame from the inner frame glue spraying machine and presses it against the inner side of the mouth of the filter bag.

[0073] The pre-assembled filter bag is moved to the riveting conveying line through the material taking and clamping device, the pre-assembled filter bag can move along the riveting conveying line, and the inner frames at the mouths of adjacent filter bags are riveted together through the riveting device. The outer frame assembly device can be docked with one end of the riveting conveying line, and the inner frames at the mouths of multiple filter bags are assembled with the same outer frame 200 (as Figure 23 shown) together.

[0074] In this embodiment, as Figure 2 shown, the glue spraying device 203 is a glue spraying head capable of moving in the XY plane, and the four inner side surfaces of the inner frame are sprayed with glue through the movable glue spraying head; different structural forms of glue spraying machines can be used for this part, as long as the above-mentioned glue spraying purpose can be achieved, and there are many mechanisms that can move the glue spraying head, all of which are acceptable.

[0075] As Figure 3 shown, the transfer device 201 includes a transfer frame 20171, a transplant lifting drive module 20172, a transfer translation drive module 20173, and a grasping component 20174 installed on the transfer frame. The grasping component is driven to lift by the transfer lifting drive module, and the grasping component is driven to translate by the transfer translation drive module.

[0076] In this embodiment, the grasping component can grasp the inner frame by means of magnet adsorption, or other methods can be used as long as the inner frame can be taken.

[0077] In this embodiment, as Figure 2 shown, a transfer table 204 is further provided on the inner frame gluing machine. The transfer table 204 includes a transfer frame and two third electromagnets, and the two electromagnets are respectively fixed at both ends of the transfer frame. The transfer table is provided for caching the inner frame after gluing. The transfer device moves the inner frame after gluing from the gluing positioning table 202 to the transfer table 204, and the inner frame is adsorbed on the transfer table 204, which is convenient for the subsequent material taking and clamping device to grasp the inner frame.

[0078] In this embodiment, preferably, the two grasping components 20174 are symmetrically mirror - arranged with the center of the transfer frame 20171 as the center. One grasping component is used to take the rectangular inner frame to be glued from the material taking position of the inner frame feeding line 10 to the gluing positioning table 202, and the other grasping component is used to place the inner frame after gluing from the gluing positioning table 202 onto the transfer table 204. By reasonably setting the distances between the material taking position and the gluing positioning table and between the gluing positioning table and the transfer table, it is possible to simultaneously realize the material taking of the inner frame to be glued and the discharging of the inner frame after gluing by driving with one transfer lifting drive module and one transfer translation drive module. The beat design is reasonable, and the power of the drive mechanism is saved. The transfer lifting drive module and the transfer translation drive module are conventional translation drive modules, which are prior art and will not be elaborated here.

[0079] As Figures 6 to 10 shown, the positioning and bag - opening device 3 includes a pre - assembly machine table 31. A positioning platform 32, an upper bag - opening mechanism 33, and a bag - taking mechanism 34 for grasping the filter bag 1001 and capable of translating along the X - axis and Z - axis are provided on the pre - assembly machine table. A number of positioning substrates 321, a lower bag - opening mechanism 35, and a bag - pushing mechanism 36 are provided at the front end of the positioning platform;

[0080] The bag - pushing mechanism 36 includes a bag - pushing plate 361 and a bag - pushing translation drive unit 362 capable of driving the bag - pushing plate 361 to translate. The bag - pushing plate is driven to translate along the X - direction by the bag - pushing translation drive unit 362;

[0081] The filter bag is fed through the filter bag feeding line 5. The bag picking mechanism 34 picks up the filter bag at the filter bag feeding line 5 and places it on the positioning platform 32. The pushing bag translation driving unit 362 drives the pushing bag plate 361 to translate and cooperate with the positioning substrate 321 to accurately position the filter bag. The upper opening mechanism 33 inserts and moves upward the upper layer of the filter bag 1001, and the lower opening mechanism 35 inserts and moves downward the lower layer of the filter bag, thereby opening the mouth of the filter bag.

[0082] As Figures 6 to 10 shown, the positioning and bag opening device 3 includes a pre-assembled machine table 31. The pre-assembled machine table is provided with a positioning platform 32, an upper bag opening mechanism 33, and a bag picking mechanism 34 for picking up the filter bag 1001 and capable of translating along the X-axis and the Z-axis. The front end of the positioning platform is provided with a plurality of positioning substrates 321, a lower bag opening mechanism 35, and a pushing bag mechanism 36.

[0083] The positioning platform 32 is provided with a plurality of strip-shaped grooves 322 extending in the X direction. The pushing bag mechanism 36 includes a pushing bag plate 361 and a pushing bag translation driving unit 362 capable of driving the pushing bag plate 361 to translate. The pushing bag translation driving unit 362 drives the pushing bag plate to translate along the X direction.

[0084] The bag picking mechanism 34 picks up the filter bag and places it on the positioning platform 32. The pushing bag translation driving unit 362 drives the pushing bag plate 361 to translate and cooperate with the positioning substrate 321 to accurately position the filter bag. The upper opening mechanism 33 inserts and moves upward the upper layer of the filter bag 1001, and the lower opening mechanism 35 inserts and moves downward the lower layer of the filter bag, thereby opening the mouth of the filter bag.

[0085] In this embodiment, as Figures 6 to 10 shown, the pushing bag translation driving unit 362 includes a pushing bag translation driving motor 3621, two third synchronous wheels 3622, a fourth synchronous belt 3623, and a pushing bag seat 3624. The third synchronous wheels are located at both ends of the bottom of the positioning platform. One of the third synchronous wheels is installed at the power output end of the pushing bag translation driving motor. The fourth synchronous belt is sleeved on the third synchronous wheels. The pushing bag seat is fixed on the fourth synchronous belt. The upper end of the pushing bag seat extends out from the strip-shaped groove and fixedly installs the pushing bag plate.

[0086] In this embodiment, as Figure 6 and Figure 7As shown, the upper bag opening mechanism 33 includes an upper needle-type suction cup 331 and an upper bag opening driving linear module 332. The upper needle-type suction cup is installed at the power output end of the upper bag opening driving linear module, and the upper needle-type suction cup is driven to move up and down by the upper bag opening driving linear module. The needle-type suction cup is a kind of modern suction cup technology, which mainly uses thin needle-shaped rigid rods as the suction area of the suction cup. At the same time, the needle-type suction cup has the characteristics of large suction force, firm adsorption, and simple structure. The working principle of the needle-type suction cup is mainly to form negative pressure inside the suction cup to achieve the adsorption function. This is the prior art, so it will not be elaborated here.

[0087] In this embodiment, as Figure 6 and Figure 7 shown, the lower bag opening mechanism 35 includes a lower needle-type suction cup 351 and a lower bag opening driving cylinder 352. The lower needle-type suction cup is installed at the power output end of the lower bag opening driving cylinder, and the lower needle-type suction cup is driven to move up and down by the lower bag opening driving cylinder.

[0088] In this embodiment, as Figure 6 and Figure 7 shown, the bag picking mechanism 34 includes a connecting arm 341 and a suction cup group 342 composed of multiple needle-type suction cups. The suction cup group is installed at the lower end of the connecting arm.

[0089] In this embodiment, as Figure 6 and Figure 7 shown, the X-direction bag picking translation driving mechanism 37 that can drive the bag picking mechanism 34 to translate along the X-axis is a linear module. It is only necessary to be able to drive the bag picking mechanism to move up and down stably.

[0090] In this embodiment, the Z-direction bag picking translation driving mechanism 38 that can drive the bag picking mechanism 34 to translate along the Z-axis and the subsequent Z-direction inner frame picking translation driving mechanism 16 (as Figure 18 and Figure 19 shown) have similar mechanisms and working principles. See the following description for details. Of course, other structures of the Z-direction bag picking translation driving mechanism can also be used as long as it can achieve the function of driving the connecting arm to move up and down. However, compared with the motor-driven screw-nut structure, the Z-direction bag picking translation driving mechanism in this embodiment has a longer driving stroke and the mechanism runs smoothly, which can meet the requirements.

[0091] As Figure 4 、 Figure 5 、 Figure 11 and Figure 12As shown, the flipping device 4 includes a flipping frame 41, two bag-supporting devices arranged on the flipping frame, a Y-direction bag-supporting driving mechanism 42 capable of driving the two bag-supporting devices to approach or move away from each other in the Y direction, a flipping driving mechanism 43 capable of driving the flipping frame to flip, and a flipping frame translation driving mechanism 44 for driving the flipping frame to translate in the X direction. The mouths of the filter bags are held in an open state by the two bag-supporting devices. The flipping driving mechanism drives the flipping frame to flip, driving the filter bags to flip so that their mouths face upward. The flipping frame translation driving mechanism drives the flipping frame to translate in the X direction;

[0092] As Figure 11 and Figure 12 shown, the bag-supporting device includes an insertion plate 451, a fixed insertion piece 452, a movable insertion piece 453 mounted on the insertion plate, and an insertion piece translation driving linear module 454 capable of driving the movable insertion piece to move up and down. The fixed insertion piece is fixed at one end of the insertion plate. The movable insertion piece is driven to move up and down by the insertion piece translation driving linear module. There are many driving methods for the insertion piece translation driving linear module, as long as it can drive the movable insertion piece to move up and down, and the structure is not limited. It belongs to the prior art, so it will not be elaborated. In this embodiment, both the fixed insertion piece and the movable insertion piece are L-shaped insertion pieces, and the acting surface of the L-shaped insertion piece is a serrated surface with saw teeth. This increases friction and is convenient for better keeping the mouths of the filter bags in an open state.

[0093] As Figure 11 and Figure 12 shown, the Y-direction bag-supporting driving mechanism 42 includes a Y-direction bag-supporting driving motor 421, a fourth synchronous pulley 422, and a fifth synchronous belt 423. The fourth synchronous pulley is located at both ends of the flipping frame, and the fifth synchronous belt is sleeved on the fourth synchronous pulley. The fourth synchronous pulley is driven to rotate by the Y-direction bag-supporting driving motor;

[0094] As Figure 11 and Figure 12 shown, the insertion plates of the two bag-supporting devices are respectively fixed at different ends on different sides of the fifth synchronous belt. Define the two bag-supporting devices as the first bag-supporting device 45 and the second bag-supporting device 46. Different ends on different sides specifically mean that the insertion plate of the first bag-supporting device is fixed at the left end on the outer side of the synchronous belt, and the insertion plate of the second bag-supporting device is fixed at the right end on the inner side of the synchronous belt. When the Y-direction bag-supporting driving motor drives the fourth synchronous pulley to rotate and drives the fifth synchronous belt to move back and forth, the two bag-supporting devices will be driven to approach or move away from each other simultaneously.

[0095] In this embodiment, the flipping driving mechanism is a structure of a motor cooperating with a speed reducer. This is the prior art, so it will not be elaborated. However, it is not limited to this, as long as it can drive the flipping frame to flip by 90°.

[0096] In this embodiment, the translation frame translation driving mechanism 44 is a driving motor cooperating with a synchronous pulley and synchronous belt structure, which is a prior art and will not be elaborated herein. However, it is not limited thereto, as long as it can drive the translation frame to translate in the X direction.

[0097] As Figures 13 to 22 shown, the material taking and clamping device 2 includes a material taking base 21, two material taking bottom plates 22, a set of intermediate inner frame clamping mechanisms 23, two sets of side inner frame clamping mechanisms 24, an X-direction material taking and clamping translation driving mechanism 25, and a variable distance driving mechanism 26. The two material taking bottom plates 22 are both installed on the bottom surface of the material taking base 21 and can be moved closer to or away from each other in the X direction by the X-direction material taking and clamping translation driving mechanism 25.

[0098] The intermediate inner frame clamping mechanism 23 is fixed at the middle position of the material taking bottom plate 22. The two sets of side inner frame clamping mechanisms 24 are mirror-symmetrical with the intermediate inner frame clamping mechanism 23 as the center and are movably installed on the material taking bottom plate 22. The intermediate inner frame clamping mechanism 23 and the two sets of side inner frame clamping mechanisms 24 both include two inner frame support and clamping assemblies 231 installed on the material taking bottom plate. The two inner frame support and clamping assemblies 231 of each side inner frame clamping mechanism 24 are both installed on the same connecting plate 241 at the same time. The two connecting plates 241 can be driven to move closer to or away from each other in the Y direction by the variable distance driving mechanism 26.

[0099] Each inner frame support and clamping assembly 231 includes an inner side support plate 2311 and a long side outer clamping unit 2312. The upper end of the long side outer clamping unit 2312 is installed on the upper part of the inner side support plate 2311. The inner frame is supported from the inside to the outside by all the inner side support plates 2311, and the long side of the inner frame and the mouth part of the filter bag are pressed and clamped by the long side outer clamping unit 2312.

[0100] In this embodiment, as Figures 13 to 22 shown, the material taking and clamping device 2 includes a material taking base 21, two material taking bottom plates 22, a set of intermediate inner frame clamping mechanisms 23, two sets of side inner frame clamping mechanisms 24, an X-direction material taking and clamping translation driving mechanism 25, and a variable distance driving mechanism 26. The two material taking bottom plates 22 are both installed on the bottom surface of the material taking base 21 and can be moved closer to or away from each other in the X direction by the X-direction material taking and clamping translation driving mechanism 25.

[0101] The middle inner frame clamping mechanism 23 is fixed at the middle position of the material taking bottom plate 22. Two groups of the side inner frame clamping mechanisms 24 are symmetrically mirror-imaged with the middle inner frame clamping mechanism 23 as the center and are movably installed on the material taking bottom plate 22. The middle inner frame clamping mechanism 23 and the two groups of side inner frame clamping mechanisms 24 both include two inner frame support clamping assemblies 231 installed on the material taking bottom plate. The two inner frame support clamping assemblies 231 of each side inner frame clamping mechanism 24 are both installed on the same connecting plate 241 at the same time. The two connecting plates 241 can be driven to approach or move away along the Y direction by the variable pitch driving mechanism 26.

[0102] Each inner frame support clamping assembly 231 includes an inner side support plate 2311 and a long side outer clamping unit 2312. The upper end of the long side outer clamping unit 2312 is installed on the upper part of the inner side support plate 2311. The inner frame is supported by all the inner side support plates 2311 from the inside to the outside, and the long side of the inner frame and the mouth part of the filter bag are pressed and clamped by the long side outer clamping unit 2312. In this embodiment, the upper end of the inner side support plate of the middle inner frame clamping mechanism is fixed to the material taking bottom plate, and the upper end of the inner side support plate of the side inner frame clamping mechanism is slidably connected to the material taking bottom plate through a slider rail structure.

[0103] In this embodiment, as Figure 15 shown, a step 23111 for easily hooking the inner frame is provided on the outer side surface of the inner side support plate 2311.

[0104] The two material taking bottom plates are simultaneously driven to move away along the X direction by the X-direction material taking and clamping translation driving mechanism 25, driving all the inner side support plates to expand outwards to support the inner frame. The inner frame can be easily hooked by the above step 23111 to prevent it from falling due to slight shaking or other reasons during the movement.

[0105] In this embodiment, as Figures 14 to 17 shown, the long side outer clamping unit 2312 includes a long side outer clamping driving cylinder 23121, an inverted "T" - shaped clamping plate 23122, and a pin shaft 23123. The upper end of the "T" - shaped clamping plate is rotatably connected to one side of the bottom of the long side outer clamping driving cylinder with a fulcrum 23124. A cavity 23125 is provided at the middle position of the "T" - shaped clamping plate. The pin shaft 23123 passes through the cavity 23125 and is rotatably connected to the end of the push rod of the long side outer clamping driving cylinder 23121.

[0106] By driving the push rod of the long side outer clamping driving cylinder 23121 to retract or extend, the upper end of the "T" - shaped clamping plate 23122 will be driven to rotate around the above fulcrum, and further drive the lower end of the "T" - shaped clamping plate 23122 to approach or move away from the inner side support plate 2311.

[0107] The design of the long-side outer tightening unit structure in this embodiment is ingenious. First, an inverted "T" - shaped splint is used in cooperation with the inner support plate to increase the contact area between the "T" - shaped splint and the mouth of the filter bag, enhancing the press - fitting and bonding effect. Second, each set of inner - frame support and clamping components can be driven by a single long - side outer clamping driving cylinder to make the "T" - shaped splint rotate around a fulcrum and cooperate with the inner support plate to press - fit and bond the long side of the inner frame and the mouth of the filter bag. The structure is concise, compact, occupies little space, and has a good press - fitting effect.

[0108] In this embodiment, as Figures 14 to 17 shown, a short - side outer clamping unit 27 is provided on the inner side surface of the inner support plate of the side - taking inner - frame clamping mechanism 24. The short sides of the inner frame and the mouth of the filter bag are press - fitted and clamped by the two short - side outer clamping units 27 on both sides. In this embodiment, as Figure 18 shown, the short - side outer clamping unit 27 includes a short - side outer clamping driving cylinder 271 and a vertical splint 272. The vertical splint 272 is installed at the power output end of the short - side outer clamping driving cylinder 271. A protective pad, such as a plastic material with certain elasticity, can be installed on the inner side of the vertical splint to avoid damaging the inner frame and the filter bag.

[0109] Since the inner frame itself has rigidity, the short - side outer clamping driving cylinder can drive the vertical plate to exert force inward, pushing the mouth of the filter bag against the short side surface of the inner frame and bonding the two together.

[0110] In this embodiment, as Figures 14 to 17 shown, the variable - distance driving mechanism 26 includes a variable - distance driving motor 261, a variable - distance lead screw 262, and two variable - distance nuts 263. The power output end of the variable - distance driving motor 261 is connected to one end of the variable - distance lead screw 262. The variable - distance lead screw 262 is a bidirectional lead screw with different - hand threads. The two variable - distance nuts 263 are respectively fixed on the two connecting plates 241, and the two variable - distance nuts 263 are respectively sleeved on the left and right sections of the variable - distance lead screw 262. The material - taking bottom plate 22 and the material - taking base 21 are also connected through a slider - rail structure. By driving the variable - distance lead screw to rotate by the variable - distance driving motor, the two variable - distance nuts are driven to approach or move away from each other, thereby realizing the approach or separation of the two connecting plates and the two sets of side - taking inner - frame clamping mechanisms to achieve variable distance. By using a single variable - distance driving motor in cooperation with a variable - distance lead screw, the distance between the two side - taking inner - frame clamping mechanisms and the middle - taking inner - frame clamping mechanism can be adjusted. Coupled with the fact that the X - direction material - taking and clamping translation driving mechanism itself is a structure of a motor cooperating with a lead screw, this composite clamping device can adapt to the press - fitting and bonding of inner frames and filter bag mouths of different size specifications, improving versatility.

[0111] In this embodiment, the connecting plate 241 is provided with an X-direction elongated hole 2411. One end of the guiding pin 2412 is fixed to the end of the inner supporting plate 2311 of the side inner frame clamping mechanism 24, and the other side passes through the X-direction elongated hole 2411 and can translate along the X-direction elongated hole 2411. Through the above structural design, the side inner frame clamping mechanisms on both sides can not only change the distance along the Y-direction, but also translate along the X-direction to support the inner frame, and there is no interference between the mechanisms.

[0112] The material taking and clamping device drives the side inner frame clamping mechanism to translate along the Y-direction through the variable distance driving mechanism to adjust the distance between it and the middle inner frame clamping mechanism, and can realize the assembly of inner frames and filter bags with different size specifications, improving the versatility of this composite clamping device.

[0113] In this embodiment, as Figures 14 to 17 shown, the X-direction material taking and clamping translation driving mechanism 25 includes an X-direction material taking and clamping translation driving motor 251, an X-direction lead screw 252 and two X-direction nuts 253. The power output end of the X-direction material taking and clamping translation driving motor 251 is connected to one end of the X-direction lead screw 252. The X-direction lead screw 252 is a bidirectional lead screw with different thread pitches. The two X-direction nuts 253 are respectively fixed on the two material taking bottom plates 22, and the two X-direction nuts 253 are respectively sleeved on the front and rear sections of the X-direction lead screw 252; the material taking bottom plate 22 and the material taking base 21 are also connected through a slider and slide rail structure. By driving the X-direction lead screw 252 to rotate through the X-direction material taking and clamping translation driving motor 251, the two X-direction nuts 253 thereon and the material taking bottom plate 22 are driven to approach or move away along the X-direction.

[0114] In this embodiment, as Figure 13 shown, the gantry 1 includes two X-direction cross beams 11, a Y-direction cross beam 12 and a Z-direction beam 13. The two ends of the Y-direction cross beam 12 are slidably connected to the X-direction cross beams 11, and the Z-direction beam 13 can slide along the surface of the Y-direction cross beam in the Y-direction;

[0115] As Figure 19 shown, the X-direction inner frame translation driving mechanism 14 that can drive the material taking and clamping device to translate along the X-direction includes an X-direction inner frame translation driving motor 141, a driving shaft 142, a first synchronous pulley 143, a first synchronous belt 144 and a second synchronous belt 145. The power output end of the X-direction inner frame translation driving motor 141, the middle position of the driving shaft 142, both ends of the driving shaft 142 and the X-direction cross beam 11 are all provided with the first synchronous pulley 143. The first synchronous belt 143 is sleeved on the first synchronous pulley 143 at the power output end of the X-direction inner frame translation driving motor 141 and the first synchronous pulley 143 at the middle position of the driving shaft 142. The second synchronous belt 145 is sleeved on the first synchronous pulley 143 of the same X-direction cross beam 11;

[0116] Both ends of the Y-direction cross beam 12 are respectively fixed on the two second synchronous belts 145 and are slidably connected to the X-direction cross beam 11 through a slider-rail structure.

[0117] Through the transmission structure composed of the above-mentioned drive shaft, multiple first synchronous wheels, first synchronous belt and second synchronous belt, the transmission structure is driven by an X-direction inner frame translation drive motor, and then cooperated with the slider-rail structure, the smooth movement of the two X-direction cross beams can be finally realized, saving power resources.

[0118] In this embodiment, as Figure 20 shown, the Y-direction inner frame translation drive mechanism 15 capable of driving the material taking and clamping device 2 to translate in the Y direction includes a Y-direction inner frame translation drive motor 151, a second synchronous wheel 152 and a third synchronous belt 153. The second synchronous wheel 152 is installed at the power output end of the Y-direction inner frame translation drive motor 151 and one end of the Y-direction cross beam 12. The third synchronous belt 153 is sleeved on the second synchronous wheel 152. The Z-direction beam 13 is fixed on the third synchronous belt 153 and is slidably connected to the Y-direction cross beam 12 through a slider-rail structure.

[0119] In this embodiment, as Figure 21 and Figure 22 shown, the Z-direction inner frame translation drive mechanism 16 capable of driving the material taking and clamping device 2 to translate in the Z direction includes a Z-direction inner frame translation drive motor 161, a driving wheel 162, an upper idler wheel 163, a lower idler wheel 164 and a belt 165. The driving wheel is located above the upper idler wheel, and the upper idler wheel is located above the lower idler wheel. The upper end of the belt is fixed to the upper end of the Z-direction beam. At the same time, the belt winds around the outer circumference of the driving wheel from below the upper idler wheel and then passes around above the lower idler wheel. Finally, the lower end of the belt is fixed to the lower end of the Z-direction beam. The Z-direction beam is slidably connected to the mounting seat 166 where the Z-direction inner frame translation drive motor is located through a slider-rail structure. In this embodiment, the slide rail extends in the Z direction and is arranged on the surface of the Z-direction beam, and the slider is fixed on the surface of the mounting seat. As Figure 18 shown, when the Z-direction inner frame translation drive motor drives the driving wheel to rotate counterclockwise, the Z-direction beam will rise. On the contrary, when the Z-direction inner frame translation drive motor drives the driving wheel to rotate clockwise, the Z-direction beam will descend. Of course, other structures of the Z-direction inner frame translation drive mechanism can also be adopted as long as it can realize the function of driving the Z-direction beam to rise and fall. However, compared with the motor-driven screw-nut structure, the Z-direction inner frame translation drive mechanism in this embodiment has a longer driving stroke and the mechanism runs smoothly, which can meet the requirements.

[0120] The above-mentioned material taking and clamping device includes an intermediate inner frame clamping mechanism, two groups of side inner frame clamping mechanisms, an X-direction material taking and clamping translation driving mechanism, and a variable pitch driving mechanism. The X-direction material taking and clamping translation driving mechanism can drive the two inner frame support clamping components of the intermediate inner frame clamping mechanism and the two groups of side inner frame clamping mechanisms to approach and separate from each other. Therefore, the inner frame can be supported to realize the material taking of the inner frame. Then, the long sides of the inner frame and the mouth parts of the filter bags are pressed and clamped together by the long side outer clamping units. At the same time, the short sides of the inner frame and the mouth parts of the filter bags are pressed and clamped by the short side outer clamping units, so as to realize the pre-assembly (or composite clamping) of the mouth parts of the filter bags and the inner frame after coating with glue. After that, the inner frames at the mouths of adjacent filter bags are riveted together through the downstream process. Therefore, the material taking and clamping device of the present invention adopts an automated operation mode to realize the lifting of the inner frame and the pre-assembly of the inner frame and the mouth parts of the filter bags, etc., which is convenient for subsequent operation processes, saves a large amount of labor, and selects various mechanisms with stable performance in the mechanism to ensure the quality while reducing the cost.

[0121] In this embodiment, a clamping method using the above-mentioned filter bag inner frame composite clamping device is as follows. First, the material taking and clamping device moves to the position where the inner frame is located along the XYZ three axes. The X-direction material taking and clamping translation driving mechanism drives the two material taking bottom plates to move away, so that all the inner side support plates expand outwards to support the inner frame from the inner side and move it to the pre-assembly station. At this time, the inner frame is just located inside the mouth parts of the filter bags.

[0122] Then, the long side outer clamping driving cylinder of the long side outer clamping unit drives the "T" - shaped clamping plate to press and bond the two long sides of the inner frame and the mouth parts of the filter bags together, and the short side outer clamping unit presses and bonds the two short sides of the inner frame and the mouth parts of the filter bags together.

[0123] Finally, the material taking and clamping device moves back along the XYZ three axes and exits, and the next process can be repeated.

[0124] The detailed working principle and working process of the filter bag inner frame pre-assembly machine 70 and the material taking and clamping device 2 are as follows:

[0125] Working process of the positioning and bag-opening device: The filter bags are stacked in the loading area of the filter bag loading line. The bag-taking mechanism moves along the X-axis to the loading area of the filter bags, then descends along the Z-axis until the suction cup group inserts and picks up the topmost filter bag and places it on the positioning platform. After that, the bag-pushing translation drive unit 362 drives the bag-pushing plate to translate along the X-direction to push the filter bag and accurately position it with the positioning substrate as the reference. Then, the upper bag-opening drive linear module drives the upper needle-type suction cup to descend until it inserts and picks up the upper layer of the filter bag, and at the same time, the lower bag-opening drive cylinder drives the lower needle-type suction cup to rise to pick up the lower layer of the filter bag. Then, the upper bag-opening drive linear module drives the upper needle-type suction cup to move upward, and the lower bag-opening drive cylinder drives the lower needle-type suction cup to move downward, so as to open the mouth of the filter bag. In order to ensure the opening effect of the filter bag, multiple groups of upper bag-opening mechanisms 33 and lower bag-opening mechanisms can be arranged at intervals.

[0126] Working process of the flipping device: The flipping frame translation drive mechanism 44 drives the flipping frame 41 to translate along the X-direction to a specified position, so that the fixed insert piece 452 and the movable insert piece 453 are both inserted into the opened filter bag. Then, the insert piece translation drive linear module 454 drives the movable insert piece 453 to move along the Z-direction, and the Y-direction bag-supporting drive mechanism 42 drives the first bag-supporting device 45 and the second bag-supporting device 46 to separate to open the mouth of the filter bag. After that, the upper bag-opening drive linear module drives the upper needle-type suction cup to move upward, and the lower bag-opening drive linear module drives the lower needle-type suction cup to move downward; then, the flipping frame translation drive mechanism 44 drives the flipping frame 41 to translate backward along the X-direction, and drives the flipping frame 41 to flip 90° through the flipping drive mechanism 43, so that the mouth of the filter bag faces upward, and the working station where the filter bag is located at this time is the pre-assembly station; wherein, since the distance between the fixed insert piece and the movable insert piece can be adjusted and the distance between the first bag-supporting device 45 and the second bag-supporting device 46 can also be adjusted, therefore, it can be applicable to the flipping of filter bags of different specifications, improving the versatility of the equipment;

[0127] Working process of the material-taking and clamping device: The material-taking and clamping device reaches the location of the inner frame (a rectangular frame with glue applied to the four outer sides of the perimeter) (not shown in the figure). The X-direction material-taking and clamping translation drive mechanism drives the two material-taking bottom plates to move away from each other, so that all the inner support plates expand outward to support the inner frame from the inside and move it to the pre-assembly station, and the inner frame is exactly located inside the mouth of the filter bag. Then, the "T"-shaped clamping plates of the long-side outer clamping unit press and bond the long side of the inner frame and the mouth of the filter bag together, and the vertical clamping plates of the short-side outer clamping unit press and bond the short side of the inner frame and the mouth of the filter bag together. The pre-assembled filter bag (including the inner frame) enters the subsequent processing process; the translation of the material-taking and clamping device along the XYZ axes in the above process is respectively realized by driving through the X-direction inner-frame translation drive mechanism, the Y-direction inner-frame translation drive mechanism, and the Z-direction inner-frame translation drive mechanism.

[0128] In the above-mentioned positioning and bag-opening device, the bag-taking mechanism grabs the filter bag to the positioning platform, and the bag-pushing translation driving unit pushes the bag-pushing plate to translate and cooperate with the positioning substrate to accurately position the filter bag; the upper layer of the filter bag is inserted and moved upward by the upper bag-opening mechanism, and the lower layer of the filter bag is inserted and moved downward by the lower bag-opening mechanism to open the mouth of the filter bag; therefore, the positioning and bag-opening device of the present invention has a clever structural design, can realize automatic grasping, automatic positioning and automatic opening of the filter bag, etc., has a high degree of automation, high efficiency, and can ensure the consistency of the opening degree of the filter bag mouth, which is convenient for the subsequent smooth progress of the assembly process with the inner frame.

[0129] The structure and principle of assembling multiple filter bags (such as 6) into the outer frame are as follows:

[0130] As Figure 1 and Figure 23 As shown in the figure, a frame is provided at the riveting conveyor line. The riveting conveyor line 90 includes two parallel conveying frames 901. The conveying frames are arranged on the frame. A support frame is provided on the frame. The riveting device 80 is installed on the support frame and can translate along the Y direction and the Z direction; a driving mechanism and other auxiliary mechanisms capable of making the filter bag translate along the X direction are provided at the riveting conveyor line. The structure in the "Automatic Riveting Machine for Filter Bag Assembly" (Patent No.: CN202411849132.1, Application Publication No.: CN119305205A) applied by the applicant can be adopted. Of course, other structures can also be used, as long as it can realize the riveting of the inner frame at the mouths of adjacent filter bags and the translation of the filter bag in the X direction, etc.

[0131] In this embodiment, the outer frame assembly device 60 includes an assembly base, two transfer frames, a moving plate and an assembly translation driving cylinder. One end of the assembly translation driving cylinder is connected to the moving plate, and the moving plate is driven to slide along the surface of the assembly base by the assembly translation driving cylinder; the transfer frames are located on both sides of the moving plate, and the distance between the two transfer frames can be adjusted. For example, it can be adjusted by the second width adjustment mechanism. There are many structures to achieve the above purpose, so they will not be elaborated. The above structures are all described in detail in the "Automatic Riveting Machine for Filter Bag Assembly" (Patent No.: CN202411849132.1, Application Publication No.: CN119305205A) applied by the applicant.

[0132] In this embodiment, preferably, as Figure 1 and Figure 23As shown, a set of elastic pieces 902 is provided at the end section of each conveying rack. This set of elastic pieces includes two elastic pieces, an upper one and a lower one. The elastic pieces can be inserted into the outer frame 200 of the outer frame assembling device. The inner frame at the mouth of the filter bag enters the outer frame through between the elastic pieces. The elastic pieces play a role in wire limiting, facilitating a set of filter bags to smoothly enter the outer frame. Through the docking of the outer frame assembling device with the riveting conveying line, the riveted filter bags enter the outer frame placed in the outer frame assembling device, and then other riveting devices are used to rivet the outer frame and the inner frame together, thus completing the assembly of a filter.

[0133] In this embodiment, an assembling method using an automatic assembling production line for bag filters includes the following steps:

[0134] Step 1: The inner frame is conveyed to the required position through the inner frame feeding line. The transfer device moves the inner frame to the inner frame glue spraying machine, and the four outer sides of the inner frame are sprayed with glue through multiple glue spraying devices.

[0135] The filter bag is conveyed to the required position through the filter bag feeding line. The positioning and bag opening device grabs the uppermost filter bag from the filter bag feeding line and opens the mouth of the filter bag, and drives the filter bag to rotate through the flipping device so that its mouth faces upward.

[0136] Step 2: The material taking and clamping device moves along the XYZ axes, grabs the inner frame from the inner frame glue spraying machine, and presses it against the inner side of the mouth of the filter bag.

[0137] Step 3: The material taking and clamping device moves the pre-assembled filter bag to the riveting conveying line. The pre-assembled filter bag moves along with the riveting conveying line, and the inner frames at the mouths of adjacent filter bags are riveted together through the riveting device.

[0138] Step 4: The outer frame assembling device can be docked with one end of the riveting conveying line. The riveted filter bags move along the riveting conveying line to the tail and enter the outer frame placed in the outer frame assembling device. The outer frame assembling device is used to assemble the inner frames at the mouths of multiple filter bags with the same outer frame together to form a bag filter.

[0139] The specific process of each step is detailed in the corresponding part described above.

[0140] The above are only embodiments of the present invention. Therefore, the above are only embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structures made by using the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. An automatic assembly production line for a bag filter, characterized in that: The production line includes an inner frame loading line (10), an inner frame glue spraying machine (20), a filter bag loading line (5), a filter bag-inner frame pre-assembly machine (70), a material taking and clamping device (2) capable of moving along the X, Y, and Z axes, a riveting device (80), a riveting conveyor line (90), and an outer frame assembly device (60). The inner frame glue spraying machine (20) includes a transfer device (201), a glue spraying positioning table (202), and a plurality of glue spraying devices (203). The inner frame (1002) is automatically loaded through the inner frame loading line, and the inner frame on the inner frame loading line is moved to the glue spraying positioning table through the transfer device, and the outer side of the inner frame is sprayed with glue through the glue spraying device. The filter bag-inner frame pre-assembly machine (70) includes a positioning and bag opening device (3) and a flipping device (4). The production line further includes a gantry (1), and the material taking and clamping device (2) is installed on the gantry (1). The topmost filter bag (1001) is grabbed from the filter bag loading line through the positioning and bag opening device (3) and the mouth of the filter bag is opened. The filter bag is driven to rotate by the flipping device (4) so that its mouth faces upward. The inner frame is grabbed from the inner frame glue spraying machine by the material taking and clamping device (2) and pressed against the inner side of the mouth of the filter bag. The pre-assembled filter bag is moved to the riveting conveyor line by the material taking and clamping device. The pre-assembled filter bag can move along the riveting conveyor line. The inner frames at the mouths of adjacent filter bags are riveted together by the riveting device. The outer frame assembly device can be docked with one end of the riveting conveyor line, and the inner frames at the mouths of multiple filter bags are assembled with the same outer frame (200) through the outer frame assembly device. The positioning and bag opening device (3) includes a pre-assembly machine table (31). A positioning platform (32), an upper bag opening mechanism (33), and a bag taking mechanism (34) for grabbing the filter bag (1001) and capable of translating along the X-axis and Z-axis are provided on the pre-assembly machine table. A plurality of positioning substrates (321), a lower bag opening mechanism (35), and a bag pushing mechanism (36) are provided at the front end of the positioning platform. The flipping device (4) includes a flipping frame (41), two groups of bag supporting devices provided on the flipping frame, a Y-direction bag supporting driving mechanism (42) capable of driving the two bag supporting devices to approach or move away from each other in the Y-direction, a flipping driving mechanism (43) capable of driving the flipping frame to flip, and a flipping frame translation driving mechanism (44) for driving the flipping frame to translate in the X-direction. The mouth of the filter bag is kept in an open state by the two bag supporting devices. The flipping frame is driven to flip by the flipping driving mechanism to drive the filter bag to flip so that its mouth faces upward. The flipping frame is driven to translate in the X-direction by the flipping frame translation driving mechanism. The material taking and clamping device (2) includes a material taking base (21), two material taking bottom plates (22), a set of intermediate inner frame clamping mechanisms (23), two sets of side inner frame clamping mechanisms (24), an X-direction material taking and clamping translation driving mechanism (25), and a variable distance driving mechanism (26). The two material taking bottom plates (22) are both installed on the bottom surface of the material taking base (21), and the two material taking bottom plates (22) can be moved closer to or away from each other in the X direction through the X-direction material taking and clamping translation driving mechanism (25). The intermediate inner frame clamping mechanism (23) is fixed at the middle position of the material taking bottom plate (22). The two sets of side inner frame clamping mechanisms (24) are mirror symmetric with the intermediate inner frame clamping mechanism (23) as the center and are movably installed on the material taking bottom plate (22). The intermediate inner frame clamping mechanism (23) and the two sets of side inner frame clamping mechanisms (24) both include two inner frame support and clamping assemblies (231) installed on the material taking bottom plate. The two inner frame support and clamping assemblies (231) of each side inner frame clamping mechanism (24) are both installed on the same connecting plate (241) at the same time. The two connecting plates (241) can be driven to move closer to or away from each other in the Y direction through the variable distance driving mechanism (26). Each inner frame support and clamping assembly (231) includes an inner side support plate (2311) and a long side outer clamping unit (2312). The upper end of the long side outer clamping unit (2312) is installed on the upper part of the inner side support plate (2311). The inner frame is supported from the inside to the outside by all the inner side support plates (2311), and the long side of the inner frame and the mouth part of the filter bag are pressed and clamped by the long side outer clamping unit (2312). The riveting conveyor line (90) includes two parallel conveying frames (901). A set of elastic pieces (902) is provided at the end of each conveying frame. The set of elastic pieces includes two elastic pieces, an upper one and a lower one. The elastic pieces can be inserted into the outer frame (200) of the outer frame assembling device. The inner frame at the mouth part of the filter bag enters the outer frame through between the elastic pieces.

2. The automatic assembly production line of the bag filter according to claim 1, characterized in that: The glue spraying device is a glue spraying head that can move in the XY plane. The four inner side surfaces of the inner frame are sprayed with glue through the movable glue spraying head. The transfer device (201) includes a transfer frame (20171), a transfer lifting driving module (20172), a transfer translation driving module (20173), and a grasping component (20174) installed on the transfer frame. The grasping component is driven to lift through the transfer lifting driving module, and the grasping component is driven to translate through the transfer translation driving module.

3. The automatic assembly production line of the bag filter according to claim 1, characterized in that: The bag pushing mechanism (36) includes a bag pushing plate (361) and a bag pushing translation driving unit (362) that can drive the bag pushing plate (361) to translate. The bag pushing plate is driven to translate in the X direction through the bag pushing translation driving unit (362). The filter bag is grasped by the bag taking mechanism (34) and placed on the positioning platform (32). The bag pushing and translating driving unit (362) drives the bag pushing plate (361) to translate and cooperate with the positioning substrate (321) to accurately position the filter bag. The upper bag opening mechanism (33) inserts and grabs the upper layer of the filter bag (1001) and moves upward, and the lower bag opening mechanism (35) inserts and grabs the lower layer of the filter bag and moves downward to open the mouth of the filter bag.

4. The automatic assembly production line of the bag filter according to claim 3, characterized in that: The upper bag opening mechanism (33) includes an upper needle type suction cup (331) and an upper bag opening driving linear module (332). The upper needle type suction cup is installed at the power output end of the upper bag opening driving linear module, and the upper needle type suction cup is driven to move up and down by the upper bag opening driving linear module. The lower bag opening mechanism (35) includes a lower needle type suction cup (351) and a lower bag opening driving cylinder (352). The lower needle type suction cup is installed at the power output end of the lower bag opening driving cylinder, and the lower needle type suction cup is driven to move up and down by the lower bag opening driving cylinder. The bag taking mechanism (34) includes a connecting arm (341) and a suction cup group (342) composed of a plurality of needle type suction cups. The suction cup group is installed at the lower end of the connecting arm.

5. The automatic assembly production line of the bag filter according to claim 3, characterized in that: The bag supporting device includes an inserting plate (451), a fixed inserting piece (452), a movable inserting piece (453) installed on the inserting plate, and an inserting piece translating driving linear module (454) capable of driving the movable inserting piece to move up and down. The fixed inserting piece is fixed at one end of the inserting plate, and the movable inserting piece is driven to move up and down by the inserting piece translating driving linear module.

6. The automatic assembly production line of the bag filter according to claim 3, wherein: On the inner side surface of the inner side supporting plate of the side inner frame clamping mechanism (24), there is a short side outer clamping unit (27). The short sides of the inner frame and the mouth of the filter bag are pressed and clamped by the two short side outer clamping units (27). The short side outer clamping unit (27) includes a short side outer clamping driving cylinder (271) and a vertical clamping plate (272). The vertical clamping plate (272) is installed at the power output end of the short side outer clamping driving cylinder (271). The long side outer clamping unit (2312) includes a long side outer clamping driving cylinder (23121), an inverted "T" type clamping plate (23122), and a pin shaft (23123). The upper end of the "T" type clamping plate is rotatably connected to one side of the bottom of the long side outer clamping driving cylinder with a fulcrum (23124). There is a cavity (23125) at the middle position of the "T" type clamping plate. The pin shaft (23123) passes through the cavity (23125) and is rotatably connected to the end of the push rod of the long side outer clamping driving cylinder (23121). By driving the push rod to retract or extend through the long side outer clamping driving cylinder (23121), the upper end of the "T" type clamping plate (23122) will be driven to rotate around the above-mentioned fulcrum, and then the lower end of the "T" type clamping plate (23122) will be driven to approach or move away from the inner side supporting plate (2311).

7. The automatic assembly production line of the bag filter according to claim 3, characterized in that: The variable pitch driving mechanism (26) includes a variable pitch driving motor (261), a variable pitch lead screw (262) and two variable pitch nuts (263). The power output end of the variable pitch driving motor (261) is connected to one end of the variable pitch lead screw (262). The variable pitch lead screw (262) is a bidirectional lead screw with threads of different helix directions. The two variable pitch nuts (263) are respectively fixed on the two connecting plates (241), and the two variable pitch nuts (263) are respectively sleeved on the left and right sections of the variable pitch lead screw (262). A slider rail structure is also provided between the material taking bottom plate (22) and the material taking base (21).

8. The automatic assembly production line of the bag filter according to claim 3, characterized in that: The X-direction material taking clamping and translation driving mechanism (25) includes an X-direction material taking clamping and translation driving motor (251), an X-direction lead screw (252) and two X-direction nuts (253). The power output end of the X-direction material taking clamping and translation driving motor (251) is connected to one end of the X-direction lead screw (252). The X-direction lead screw (252) is a bidirectional lead screw with threads of different helix directions. The two X-direction nuts (253) are respectively fixed on the two material taking bottom plates (22), and the two X-direction nuts (253) are respectively sleeved on the front and rear sections of the X-direction lead screw (252). A slider rail structure is also provided between the material taking bottom plate (22) and the material taking base (21).

9. An assembling method using an automatic assembling production line for a bag filter according to claim 3, characterized in that: It includes the following steps: Step 1: The inner frame is conveyed to the required position through the inner frame feeding line. The transfer device moves the inner frame to the inner frame glue spraying machine, and the four outer sides of the inner frame are sprayed with glue through multiple glue spraying devices. The filter bag is conveyed to the required position through the filter bag feeding line. The positioning and bag opening device grabs the topmost filter bag from the filter bag feeding line and opens the mouth of the filter bag, and drives the filter bag to rotate through the flipping device so that its mouth faces upward. Step 2: The material taking and clamping device moves along the XYZ axes, grabs the inner frame from the inner frame glue spraying machine and presses it against the inner side of the mouth of the filter bag. Step 3: The material taking and clamping device moves the pre-assembled filter bag to the riveting conveying line. The pre-assembled filter bag moves along the riveting conveying line, and the inner frames at the mouths of adjacent filter bags are riveted together through the riveting device. Step 4: The outer frame assembling device can be docked with one end of the riveting conveying line. The riveted filter bag moves along the riveting conveying line to the tail and enters the outer frame placed in the outer frame assembling device. The outer frame assembling device is used to assemble the inner frames at the mouths of multiple filter bags with the same outer frame together to form a bag filter.

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