Ventilation pipe edge covering machine and ventilation pipe edge covering method

Abstract

The invention provides a vent pipe covering machine. The vent pipe covering machine comprises a rack, a main machine and a plurality of mechanisms sequentially arranged on the rack according to stations. The adhesive tape disc supporting mechanism is used for supporting the adhesive tape reel to achieve adhesive tape discharging. The gluing mechanism is used for conducting single-face gluing on the adhesive tape. The adhesive tape coiling mechanism is used for stretching an adhesive tape with one side glued by a preset length and coiling the adhesive tape into a prototype sample adhesive tape ring; the adhesive tape ring fixing mechanism is used for clamping the overlapped part of the head end and the tail end of the prototype sample adhesive tape ring and nailing the overlapped part of the head end and the tail end to realize fixation so as to manufacture a finished adhesive tape ring; and the automatic adhesive tape ring folding mechanism is used for extruding and folding the finished adhesive tape ring, so that the peripheral size of the folded finished adhesive tape ring is reduced, and the finished adhesive tape ring recovers deformation after the folded finished adhesive tape ring is covered with a pipe cover of the ventilation pipe. Compared with the prior art, the ventilation pipe edge covering machine and the ventilation pipe edge covering method are high in edge covering efficiency and wide in application range.

Description

Technical Field

[0001] The invention relates to the field of mechanical devices, and in particular to a ventilation pipe edge wrapping machine and a ventilation pipe edge wrapping method used for ventilation hose edge wrapping. Background Art

[0002] Ventilation pipes are commonly used building materials. For example, kitchen range hoods are connected to flues through ventilation pipes. For ease of installation, ventilation pipes are often designed as hose structures. However, the design of the hose structure makes it easy for the ports at both ends of the ventilation pipe to deform. When the two ends of the ventilation pipe are sealed and connected to other pipe openings, the deformation of the ports makes installation difficult. Therefore, after the ventilation pipe is produced, the ports at both ends are usually protected with edge wrapping.

[0003] In the prior art, the edge wrapping of the ventilation pipe is done by manual edge turning, that is, a rubber strip with a certain hardness is attached to the inner side of the port of the ventilation pipe, and the worker rotates the ventilation pipe for one circle at the workstation, so that the rubber strip forms a rubber strip ring inside the port of the ventilation pipe, and then the rubber strip ring is fixed to form a support for the port of the ventilation pipe, so as to achieve the effect of edge wrapping protection. For example, a pipe edge wrapping machine with a patent application number of 201721349494.X is actually still a pure manual edge wrapping operation. However, when manually rotating, the head and tail of the rubber strip may not be on the same horizontal line, that is, there is a problem of inaccurate alignment, the yield is limited, and the rubber strip needs to be manually trimmed again, and the efficiency of edge wrapping is low; for ventilation pipes of different diameters, it is necessary to rely on manual experience to control the length of the rubber strip ring when turning, and the applicability is poor.

[0004] Therefore, it is necessary to provide a new ventilation duct hemming machine and ventilation duct hemming method to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a ventilation pipe edge wrapping machine and a ventilation pipe edge wrapping method with high edge wrapping efficiency and wide application range.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a ventilation pipe edge wrapping machine, which is used for wrapping the inner side of the pipe opening of the ventilation pipe; the ventilation pipe edge wrapping machine includes a frame, a main machine installed on the frame, and a rubber strip disc supporting mechanism, a gluing mechanism, a rubber strip coiling mechanism, a rubber strip coil fixing mechanism and a rubber strip coil automatic folding mechanism which are sequentially arranged on the frame according to workstations;

[0007] The host is electrically connected to the gluing mechanism, the rubber strip winding mechanism, the rubber strip fixing mechanism and the rubber strip automatic folding mechanism, respectively, and is used to control the working states of the gluing mechanism, the rubber strip winding mechanism, the rubber strip fixing mechanism and the rubber strip automatic folding mechanism respectively;

[0008] The rubber strip reel support mechanism is used to support the rubber strip reel to realize rubber strip discharging;

[0009] The gluing mechanism is used to glue the rubber strip discharged from the rubber strip reel supported by the rubber strip reel supporting mechanism on one side;

[0010] The rubber strip coiling mechanism is used to stretch the rubber strip that has been glued on one side by the gluing mechanism to a preset length, and to roll the stretched rubber strip of the preset length into a ring-shaped initial rubber strip coil, and to make the head and tail ends of the initial rubber strip coil partially overlap;

[0011] The rubber strip ring fixing mechanism is used to clamp the overlapping parts of the head and tail of the sample rubber strip ring rolled by the rubber strip winding mechanism, and nail the overlapping parts of the head and tail to achieve fixation, so as to make a finished rubber strip ring;

[0012] The automatic folding mechanism of the rubber strip ring is used to squeeze and fold the finished rubber strip ring so that the peripheral size of the finished rubber strip ring after being folded becomes smaller, and to restore the deformation of the rubber strip ring after the pipe cover of the ventilation pipe is arranged on the folded finished rubber strip ring.

[0013] Preferably, the frame includes a first section and a second section extending vertically from the first section, the gluing mechanism, the rubber disc supporting mechanism and the rubber winding mechanism are installed on the first section, and the rubber ring fixing mechanism and the rubber ring automatic folding mechanism are installed on the second section.

[0014] Preferably, the gluing mechanism comprises a mounting frame, a rotating motor, a gluing turntable, a glue tray and a guide frame; the mounting frame comprises a main bracket fixed to the frame and a guide block mounted on the main bracket; the gluing turntable is mounted on the main bracket and is rotatably connected with the main bracket, and the highest point of the gluing turntable is higher than the guide block; the rotating motor is mounted on the main bracket and connected to the gluing turntable, and is used to drive the gluing turntable to rotate; the glue tray is mounted on the main bracket to hold glue; the gluing turntable is located directly above the glue tray, And the upper glue turntable is in contact with the glue contained in the glue tray; the guide frame includes a sub-bracket fixed to the frame and located on the side of the upper glue turntable away from the guide block, and a guide rod installed on the sub-bracket and horizontally arranged, and the guide rod is lower than the highest point of the upper glue turntable; the rubber strip discharged from the rubber strip reel is wound around the bottom of the guide block and extends to the upper half of the circumference of the upper glue turntable and fits, and then extends to the bottom of the guide rod before being discharged; when the rubber strip winding mechanism stretches the rubber strip, the rotating motor rotates synchronously to achieve single-sided gluing of the rubber strip.

[0015] Preferably, the rubber strip winding mechanism comprises a push-pull drive unit, a winding unit, a rubber strip clamping unit and a cutting unit; the push-pull drive unit comprises a guide rail supported on the frame at both ends, a push-pull drive located at one end of the guide rail, and a support plate supported on the guide rail and slidably connected to the guide rail; the push-pull drive is connected to the support plate and drives the support plate to reciprocate along the guide rail; wherein the guide rail is arranged parallel to the first section; the winding unit comprises a rotating motor fixed to the support plate, a rotating arm fixed to the output shaft of the rotating motor, and a first pneumatic mechanical clamp fixed to one end of the rotating arm away from the output shaft of the rotating motor; The output shaft of the rotating motor is arranged upward, and the clamping mouth of the first pneumatic mechanical clamp is arranged upward, which is used to clamp the rubber strip and rotate it to form the initial rubber strip ring; the rubber strip clamping unit includes a support frame located on the side of the support plate close to the push-pull driver and a second pneumatic mechanical clamp fixed to the support frame, and the second pneumatic mechanical clamp is used to position the rubber strip discharged from the rubber strip reel; the cutting unit includes a cutting cylinder fixed to the frame and suspended between the first pneumatic mechanical clamp and the second pneumatic mechanical clamp, and a mechanical scissors fixed to the output end of the cutting cylinder, the scissor mouth of the mechanical scissors is arranged downward, and the cutting cylinder drives the mechanical scissors to move up and down.

[0016] Preferably, the push-pull drive includes a push-pull motor located at one end of the guide rail and a screw supported by the frame and parallel to the guide rail, the output shaft of the push-pull motor is fixed to one end of the screw and drives the screw to rotate, and the bottom of the support plate forms a transmission connection with the screw; the winding unit also includes an auxiliary support platform fixed to one side of the first pneumatic mechanical clamp, and the table surface of the auxiliary support platform is parallel to the bottom end of the clamping mouth of the first pneumatic mechanical clamp; the rubber strip winding mechanism also includes a blowing air pipe fixed to the frame and suspended on the inner side of the winding unit, and the air outlet of the blowing air pipe is used to blow air from the inside to the outside to the rubber strip clamped by the winding unit.

[0017] Preferably, the rubber strip ring fixing mechanism includes a slide rail, a clamping assembly, a horizontal support assembly and a nailing assembly; the slide rail is fixed to one side of the frame, the slide rail is located above the frame and is horizontally arranged; the clamping assembly includes a slider installed on the slide rail and can slide left and right along the slide rail, a first longitudinal driving device fixed to the slider, and a third pneumatic mechanical clamp fixed to the output shaft of the first longitudinal driving device; the first longitudinal driving device is used to drive the third pneumatic mechanical clamp to move downward or upward, and the third pneumatic mechanical clamp is used to clamp the initial rubber strip ring to be fixed; the horizontal support assembly includes a support rod fixed to the other side of the frame, an auxiliary cylinder fixed to the support rod, a pin fixed to the output shaft of the auxiliary cylinder, and a baffle sleeved and fixed to the pin; the auxiliary cylinder is horizontally arranged and its output shaft faces the mechanical clamp, and when the auxiliary cylinder drives the pin to move in a direction close to the mechanical clamp to a fixed stroke, the pin is supported on the bottom end of the initial rubber strip ring, and the baffle abuts against the initial rubber strip ring. The outer periphery of the rubber strip ring; the nailing assembly includes a main rod fixed to the frame and located on the same side of the frame as the slide rail, and a nailing module fixed to the main rod; the nailing module includes a second longitudinal driving device fixed to the main rod, a mounting block fixed to the output shaft of the second longitudinal driving device, and a nailer and a transverse driving device respectively fixed to the mounting block, the nailing module is located above the clamping assembly and is staggered; the nailing port end of the nailer faces downward and faces the overlapping parts of the two ends of the initial rubber strip ring, one of the two movable arms of the nailer is fixed to the mounting block, and the other of the two movable arms of the nailer is fixedly connected to the output shaft of the transverse driving device; the second longitudinal driving device is used to drive the mounting block to move downward so that the nailing port of the nailer faces the initial rubber strip ring and moves to be flush with the third pneumatic mechanical clamp, and the transverse driving device is used to drive one of the movable arms of the nailer to move toward the other movable arm to achieve nailing, so as to form the finished rubber strip ring.

[0018] Preferably, the first longitudinal drive device, the second longitudinal drive device and the transverse drive device are all cylinders; the horizontal support assembly includes two and is respectively located on opposite sides of the frame, and the two horizontal support assemblies are both arranged toward the third pneumatic mechanical clamp.

[0019] Preferably, the automatic folding mechanism of the rubber strip ring includes a folding table and a driving unit; the folding table includes a table plate supported and fixed on the top of the frame, a slide rail groove penetrating the table plate and extending along the length direction of the table plate, and two first stop columns fixed to the table plate, and the two first stop columns are spaced apart and arranged on opposite sides of the slide rail groove; the driving unit includes a first driving device, a second driving device and a pushing column; the first driving device is fixed to the peripheral side of the frame and located below the table plate, the first driving device is located at one end of the slide rail groove, and the output shaft of the first driving device is arranged parallel to the slide rail groove; the second driving device is fixed to the output shaft of the first driving device and is located on the slide rail groove. The output shaft of the second driving device is arranged perpendicular to the slide rail groove; one end of the push column is fixed to the output shaft of the second driving device, and the other end of the push column is opposite to the slide rail groove; the second driving device is used to drive the push column to move upward to pass through the slide rail groove and protrude from the table, and is also used to drive the push column to retract downward to be located below the table; the first driving device is used to drive the second driving device to move in a direction parallel to the slide rail groove, so as to drive the push column to move along the slide rail groove away from the first driving device when it passes through the slide rail groove, or to drive the push column to move in a direction close to the first driving device when it retracts to be located below the table.

[0020] Preferably, the driving unit also includes two third driving devices, which are fixed to the frame and located under the table. The output shafts of the two third driving devices are respectively fixedly connected to the two first stop columns, and are used to drive the first stop columns to extend upward to above the table or retract downward to below the table. The two first stop columns are symmetrically arranged about the slide rail groove; the first driving device, the second driving device and the third driving device are all cylinders.

[0021] The embodiment of the present invention further provides a ventilation duct hemming method, which is based on the ventilation duct hemming machine provided by the present invention; the ventilation duct hemming method comprises the following steps:

[0022] Step S1, applying glue on one side of the rubber strip discharged from the rubber strip reel supported by the rubber strip reel supporting mechanism by means of the gluing mechanism;

[0023] Step S2, stretching the rubber strip that has been glued on one side by the glue-applying mechanism to a preset length by the rubber strip winding mechanism, and rolling the stretched rubber strip of the preset length into a ring-shaped initial rubber strip ring, and making the head and tail ends of the initial rubber strip ring partially overlap; wherein the glued side of the initial rubber strip ring is its outer peripheral side;

[0024] Step S3, clamping the overlapping parts of the initial rubber strip ring formed by the rubber strip winding mechanism through the rubber strip ring fixing mechanism, and nailing the overlapping parts of the initial rubber strip ring to achieve fixation, so as to form a finished rubber strip ring;

[0025] Step S4, applying a squeezing force to the finished rubber strip ring through the rubber strip ring automatic folding mechanism, so that the finished rubber strip ring is compressed and folded inwardly to be deformed after being squeezed in the horizontal direction, and the outer circumference size of the finished rubber strip ring after being compressed and folded inwardly to be deformed becomes smaller;

[0026] Step S5, arranging the pipe cover of the ventilation pipe to be edged on the finished rubber strip ring that is compressed, folded and deformed inwardly;

[0027] Step S6, canceling the extrusion force applied to the finished rubber strip ring that has been compressed and folded inwardly through the automatic folding mechanism of the rubber strip ring, so that the finished rubber strip ring that has been compressed and folded inwardly can restore its deformation and fit on the inner circumference of the pipe opening of the ventilation pipe to be wrapped.

[0028] Compared with the prior art, in the ventilation pipe hemming machine and ventilation pipe hemming method of the present invention, a rubber strip disc supporting mechanism, a rubber strip winding mechanism, a rubber strip ring fixing mechanism and a rubber strip ring automatic folding mechanism arranged on the frame are arranged in sequence according to the process steps; and a main machine is arranged to be electrically connected to the rubber strip winding mechanism, the rubber strip ring fixing mechanism and the rubber strip ring automatic folding mechanism, respectively, for respectively controlling the working states of the rubber strip winding mechanism, the rubber strip ring fixing mechanism and the rubber strip ring automatic folding mechanism; the rubber strip disc supporting mechanism is used to support the rubber strip reel to realize the rubber strip discharging; the rubber strip winding mechanism is used to stretch the rubber strip of the rubber strip reel on the rubber strip disc supporting mechanism to a preset length, and to stretch the stretched rubber strip to a preset length. The rubber strip of preset length is rolled into a ring-shaped prototype rubber strip ring, and the ends of the prototype rubber strip ring are partially overlapped; the rubber strip ring fixing mechanism is used to clamp the overlapped parts of the prototype rubber strip ring rolled by the rubber strip ring rolling mechanism, and nail the overlapped parts to fix them, so as to make a finished rubber strip ring; the rubber strip ring automatic folding mechanism is used to squeeze and fold the finished rubber strip ring, so that the peripheral size of the finished rubber strip ring after being folded becomes smaller, at this time, the pipe mouth of the ventilation pipe to be edged is set on the folded finished rubber strip ring, and the finished rubber strip ring is allowed to restore its deformation, and the finished rubber strip ring is automatically attached to the inner wall of the pipe mouth of the ventilation pipe to achieve edge wrapping. Therefore, the ventilation pipe edge wrapping machine of the present invention not only has high production efficiency and high yield rate of unified standards, but also can realize the rolling of rubber strip rings of different diameters through the rubber strip ring rolling mechanism, and is suitable for ventilation pipes of different diameters, with a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings. The above and other aspects of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings. In the accompanying drawings:

[0030] Figure 1 It is a structural schematic diagram of an embodiment of a ventilation pipe hemming machine of the present invention;

[0031] Figure 2 It is a structural schematic diagram of a rubber strip coiling mechanism of an embodiment of a ventilation pipe hemming machine of the present invention;

[0032] Figure 3 It is a structural schematic diagram of a rubber strip ring fixing mechanism of an embodiment of a ventilation pipe hemming machine of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the automatic folding mechanism of the rubber strip ring of the ventilation pipe hemming machine embodiment of the present invention;

[0034] Figure 5 It is a schematic structural diagram of another state of the automatic folding mechanism of the rubber strip ring of the ventilation pipe hemming machine embodiment of the present invention;

[0035] Figure 6 It is a schematic diagram of the state when the automatic folding mechanism of the rubber strip ring of the ventilation pipe edge wrapping machine embodiment of the present invention folds the rubber strip ring;

[0036] Figure 7 The present invention is a flowchart of a ventilation pipe edge wrapping method embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples.

[0038] The specific implementation modes / embodiments recorded herein are specific implementation modes of the present invention, which are used to illustrate the concept of the present invention, are explanatory and exemplary, and should not be interpreted as limiting the implementation modes of the present invention and the scope of the present invention. In addition to the embodiments recorded herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, and these technical solutions include any obvious replacement and modification of the embodiments recorded herein, which are within the protection scope of the present invention.

[0039] The following descriptions of the embodiments refer to the attached drawings to illustrate specific embodiments of the present invention. Directional terms mentioned in the present invention, such as up, down, front, back, left, right, inside, outside, top, bottom, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but are not used to limit the present invention.

[0040] Please refer to Figure 1-6As shown, the present invention provides a ventilation pipe hemming machine 1000, including a frame 100, a main machine 200 installed on the frame 100, and the gluing mechanism 700, the rubber strip disc supporting mechanism 300, the rubber strip winding mechanism 400, the rubber strip ring fixing mechanism 500 and the rubber strip ring automatic folding mechanism 600 arranged on the frame 100 in sequence according to work stations.

[0041] The frame 100 is used to install various mechanisms.

[0042] The host 200 is electrically connected to the gluing mechanism 700, the rubber strip winding mechanism 400, the rubber strip ring fixing mechanism 500 and the rubber strip ring automatic folding mechanism 600, respectively, and is used to control the working states of the gluing mechanism 700, the rubber strip winding mechanism 400, the rubber strip ring fixing mechanism 500 and the rubber strip ring automatic folding mechanism 600, respectively.

[0043] In this embodiment, the frame 100 includes a first section 1001 and a second section 1002 vertically extending from the first section 1001, forming an L-shape, which can better utilize the installation space. The rubber disc supporting mechanism 300, the gluing mechanism 700 and the rubber coiling mechanism 400 are installed in the first section 1001, and the rubber coil fixing mechanism 500 and the rubber coil automatic folding mechanism 600 are installed in the second section 1002.

[0044] The rubber strip reel support mechanism 300 is used to support the rubber strip reel to realize rubber strip discharging.

[0045] The gluing mechanism 700 is used to apply glue on one side of the rubber strip discharged from the rubber strip reel supported by the rubber strip reel supporting mechanism 300 .

[0046] Please combine Figure 1 As shown, specifically, the gluing mechanism 700 includes a mounting frame 701 , a rotating motor 702 , a gluing turntable 703 , a glue tray 704 and a guide frame 705 .

[0047] The mounting frame 701 includes a main support 7011 fixed to the frame 100 and a guide block 7012 installed on the main support 7011 .

[0048] The main support 7011 is used to install the rotating motor 702, the glue application turntable 703 and the glue tray 704. The guide block 7012 is used to adjust the angle of the glue strip to achieve guidance.

[0049] The gluing turntable 703 is installed on the main bracket 7011 and is rotatably connected with the main bracket 7011. The highest point of the gluing turntable 703 is higher than the guide block 7012, so that the rubber strip is wrapped around the bottom of the guide block and then extends to the gluing turntable 703 to fit the upper part of the peripheral side of the gluing turntable 703.

[0050] The rotating motor 702 is installed on the main bracket 7011 and connected to the gluing turntable 703 for driving the gluing turntable 703 to rotate.

[0051] The glue tray 704 is mounted on the main support 7011 to hold glue. The upper glue turntable 703 is located directly above the glue tray 704 , and the upper glue turntable 703 is in contact with the glue held in the glue tray 704 .

[0052] The guide frame 705 includes a sub-bracket 7051 fixed to the frame 100 and located on the side of the gluing turntable 703 away from the guide block 7012 , and a guide rod 7052 installed on the sub-bracket 7051 and horizontally arranged, and the guide rod 7052 is lower than the highest point of the gluing turntable 703 .

[0053] During operation, the rubber strip discharged from the rubber strip reel is wound around the bottom of the guide block 7012 and then extends to the upper half of the circumference of the upper glue turntable 703 and fits thereto, and then extends to the bottom of the guide rod 7052 and then discharges the rubber strip. This structure allows a longer portion of the rubber strip to fit the upper portion of the circumference of the upper glue turntable 703. When the rubber strip winding mechanism 400 stretches the rubber strip, the rotating motor 702 rotates synchronously to achieve single-sided gluing of the rubber strip.

[0054] That is to say, when the rotating motor 702 drives the gluing turntable 703 to rotate, the lower part of the gluing turntable 703 is always in contact with the glue contained in the glue tray 704, so that the outer peripheral side of the gluing turntable 703 is always adhered to glue, and when the glue strip is attached to the glue turntable 703 and stretched, the glue turntable 703 rotates synchronously to continuously supply glue, so that the glue strip is attached to one side of the glue turntable 703 to achieve gluing.

[0055] The above-mentioned gluing mechanism 700 is a single-station structure, and can also be set in a double-station, that is, two rotating motors 702 are set side by side, two gluing turntables 703 on the mounting frame 701 are also set and spaced from each other, two glue trays 704 are set and correspond to the two gluing turntables 703 respectively, and two groups of guide blocks 7012 are set and correspond to the two gluing turntables 703 respectively. Of course, the rubber strip reel on the rubber strip reel support mechanism 300 is correspondingly set with two reels, which correspond to the discharge of the two gluing turntables 703 respectively. The working principle of the double-station structure is the same as that of the above-mentioned single-station structure, which will not be repeated here.

[0056] The rubber strip winding mechanism 400 is used to stretch the rubber strip on the rubber strip reel that has been glued on one side by the gluing mechanism 700 to a preset length, and to roll the stretched rubber strip of the preset length into a ring-shaped prototype rubber strip ring, and to make the head and tail ends of the prototype rubber strip ring partially overlap.

[0057] Please combine Figure 2 As shown, specifically, the rubber strip winding mechanism 400 includes a push-pull driving unit 402 , a winding unit 403 , a rubber strip clamping unit 404 and a cutting unit 405 .

[0058] The push-pull drive unit 402 includes a guide rail 4021 supported at both ends by the frame 100, a push-pull driver 4022 located at one end of the guide rail 4021, and a support plate 4023 supported by and slidably connected to the guide rail 4021. In this embodiment, the guide rail 4021 includes two guide rails 4021, which are horizontally parallel and spaced apart from each other to improve the guiding stability.

[0059] The push-pull driver 4022 is connected to the support plate 4023 and drives the support plate 4023 to reciprocate along the guide rail 4021. The guide rail 4021 is arranged parallel to the first section 1001.

[0060] In this embodiment, the push-pull driver 4022 includes a push-pull motor 40221 located at one end of the guide rail 4021 and a lead screw 40222 supported by the frame 100 and parallel to the guide rail 4021, wherein the lead screw 40222 is located between the two guide rails 4021 and is rotatably connected to the frame 100. The output shaft of the push-pull motor 40221 is fixed to one end of the lead screw 40222 and drives the lead screw 40222 to rotate, and the bottom of the support plate 4023 is in transmission connection with the lead screw 40222, that is, the support plate 4023 and the lead screw 40222 form a transmission pair.

[0061] The coil unit 403 includes a rotating motor 4031 fixed to the support plate 4023 , a rotating arm 4032 fixed to the output shaft of the rotating motor 4031 , and a first pneumatic mechanical clamp 4033 fixed to one end of the rotating arm 4032 away from the output shaft of the rotating motor 4031 .

[0062] The output shaft of the rotating motor 4031 is arranged upward, and the rotating arm 4032 is arranged horizontally. The clamping opening of the first pneumatic mechanical clamp 4033 is arranged upward, and is used to clamp the rubber strip and rotate and roll it into the initial rubber strip ring.

[0063] The rubber strip clamping unit 404 includes a support frame 4041 located on the side of the support plate 4023 close to the push-pull driver 4022 and a second pneumatic mechanical clamp 4042 fixed to the support frame 4041, wherein the second pneumatic mechanical clamp 4042 is used to clamp the rubber strip to be discharged.

[0064] The cutting unit 405 includes a cutting cylinder 4051 fixed to the frame 100 and suspended between the first pneumatic mechanical clamp 4033 and the second pneumatic mechanical clamp 4042, and a mechanical scissors 4052 fixed to the output end of the cutting cylinder 4051. The scissor mouth of the mechanical scissors 4052 is set downward, and the cutting cylinder 4051 drives the mechanical scissors 4052 to move up and down.

[0065] During operation, the rubber strip discharged from the rubber strip disc supported by the rubber strip disc supporting mechanism 300 is supported by the second pneumatic mechanical clamp 4042 of the rubber strip clamping unit 404, and the rubber strip to be discharged at the second pneumatic mechanical clamp 4042 is clamped by the first pneumatic mechanical clamp 4033 of the winding ring unit 403, and then the support plate 4023 is driven to move outward along the guide rail 4021 by the push-pull driver 4022 of the push-pull drive unit 402, thereby driving the second pneumatic mechanical clamp 4042 to move outward to pull out the rubber strip of a preset length. At this time, the second pneumatic mechanical clamp 4042 clamps the rubber strip again to prevent the length of the pulled rubber strip from changing, and then the support plate 4023 is driven by the push-pull driver 4022 to move back to the initial position along the guide rail 4021. The rubber strip is bent at the starting position, and then the rotating motor 4031 of the winding unit 403 drives the rotating arm 4032 to rotate 360 ​​degrees horizontally in a preset direction, so that the second pneumatic mechanical clamp 4042 rolls the rubber strip into a ring-shaped prototype rubber strip ring, and then the mechanical hand component of the rubber strip ring fixing mechanism 500 of the next workstation clamps the overlapping parts of the two ends of the prototype rubber strip ring that is rolled into a ring, and then the cutting cylinder 4051 of the cutting unit 405 drives the mechanical scissors 4052 to move downward to the position of the rubber strip outside the range of the rubber strip ring (and between the first pneumatic mechanical clamp 4033 and the second pneumatic mechanical clamp 4042) and cuts the rubber strip, and then the structure of each unit is reset, thereby achieving the purpose of rolling the rubber strip into a prototype rubber strip ring.

[0066] Preferably, the coiling unit 403 further includes an auxiliary support platform 4034 fixed to one side of the first pneumatic mechanical clamp 4033, and the surface of the auxiliary support platform 4034 is parallel to the bottom end of the clamping opening of the first pneumatic mechanical clamp 4033. This structural arrangement enables the rubber strip to be partially located on the auxiliary support platform 4034 when it is converted into a prototype rubber strip coil, i.e., the auxiliary support platform 4034 provides horizontal support for a portion of the prototype rubber strip coil, so that the overlapping portions of the two ends of the prototype rubber strip coil after coiling can be flush with each other, and the structural stability is better when it is clamped and transferred to the next station, i.e., the yield rate is higher.

[0067] In order to further improve the reliability during winding, thereby further improving the production efficiency, in this embodiment, the rubber strip winding mechanism 400 also includes a blowing air pipe 406 fixed to the frame 100 and suspended on the inner side of the winding unit 403, and the air outlet of the blowing air pipe 406 is used to blow air from the inside to the outside to the rubber strip clamped by the winding unit 403, so that the rubber strip always rotates in the preset direction when being wound.

[0068] The rubber strip winding mechanism 400 is described as a single-station structure. According to the above structure, the rubber strip winding mechanism 100 can also realize a double-station structure, that is, the winding unit 403 includes two and is respectively fixed to the opposite ends of the support plate 4023, the rubber strip clamping unit 404 includes two and is respectively arranged opposite to the two winding units 403, the cutting unit 405 includes two and is respectively arranged corresponding to the two winding units 403, and the blowing air pipe 406 includes two and is respectively arranged corresponding to the two winding units 403, which is equivalent to merging two sets of stations into a double-station structure to work synchronously, further improving the assembly efficiency. In addition, the other structures and working principles are the same as above.

[0069] The rubber strip ring fixing mechanism 500 is used to clamp the overlapping parts of the initial rubber strip ring formed by the rubber strip winding mechanism 400, and to nail the overlapping parts to achieve fixation, so as to form a finished rubber strip ring.

[0070] Please combine Figure 3 As shown, specifically, the rubber ring fixing mechanism 500 includes a slide rail 502 , a clamping assembly 503 , a horizontal support assembly 504 and a nailing assembly 505 .

[0071] The slide rail 502 is fixed to one side of the rack 100 , and the slide rail 502 is located above the rack 100 and is horizontally arranged.

[0072] The clamping assembly 503 includes a slider 5031 installed on the slide rail 502 and capable of sliding left and right along the slide rail 502 , a first longitudinal driving device 5032 fixed to the slider 5031 , and a third pneumatic mechanical clamp 5033 fixed to the output shaft of the first longitudinal driving device 5032 .

[0073] The slider 5031 itself has a power structure, and can slide left and right according to a preset action through the host 200.

[0074] The first longitudinal driving device 5032 is used to drive the third pneumatic mechanical clamp 5033 to move downward or upward, and the third pneumatic mechanical clamp 5033 is used to clamp the initial sample rubber strip ring 10 to be fixed.

[0075] The horizontal support assembly 504 includes a support rod 5041 fixed to the other side of the frame 100, an auxiliary cylinder 5042 fixed to the support rod 5041, a pin 5043 fixed to the output shaft of the auxiliary cylinder 5042, and a baffle 5044 sleeved and fixed to the pin 5043.

[0076] The auxiliary cylinder 5042 is arranged horizontally and its output shaft faces the third pneumatic mechanical clamp 5033. When the auxiliary cylinder 5042 drives the insertion pin 5043 to move to a fixed stroke in a direction close to the third pneumatic mechanical clamp 5033, the insertion pin 5043 is supported at the bottom end of the initial rubber strip ring 10, and the blocking piece 5044 is abutted against the outer periphery of the initial rubber strip ring 10. The horizontal support assembly 504 can be provided with one, or one can be provided on each of the opposite sides of the frame, but at least one of the blocking pieces 504 of the horizontal support assembly 504 is abutted against the overlapping portion of the two ends of the initial rubber strip ring 10.

[0077] The nailing assembly 505 includes a main rod 5051 fixed to the frame 100 and located on the same side of the frame 100 as the slide rail 502 , and a nailing module 5052 fixed to the main rod 5051 .

[0078] The nailing module 5052 includes a second longitudinal driving device 50521 fixed to the main rod 5051, a mounting block 50522 fixed to the output shaft of the second longitudinal driving device 50521, and a nailer 50523 and a transverse driving device 50524 respectively fixed to the mounting block 50522.

[0079] The nailing module 5052 is located above the clamping assembly 503 and is staggered, wherein the nailing module 5052 is arranged more forward relative to the clamping assembly 503. The nailing opening of the nailing device 50523 faces downward and directly faces the overlapping portion of the two ends of the initial rubber strip ring 10 (the portion filled by the oblique lines of the initial rubber strip ring 10 in the figure), one of the two movable arms of the nailing device 50523 is fixed to the mounting block 50522, and the other of the two movable arms of the nailing device 50523 is fixedly connected to the output shaft of the horizontal driving device 50524.

[0080] The second longitudinal drive device 50521 is used to drive the mounting block 50522 to move downward, so that the nailing opening of the nailer 50523 moves to the level of the first sample rubber strip ring 10 and is flush with the third pneumatic mechanical clamp 5033, and the transverse drive device 50524 is used to drive one of the movable arms of the nailer 50523 to move toward the other movable arm to achieve nailing, thereby forming the finished rubber strip ring. It should be noted that the nailer 50523 is a structure in the current technology, and its principle is similar to that of a stapler.

[0081] In this embodiment, the first longitudinal driving device 5032, the second longitudinal driving device 50521 and the transverse driving device 50524 are all cylinders.

[0082] During operation, the clamping assembly 503 clamps the sample rubber strip ring 10 rolled into a circle along the slide rail 502 from the previous station and moves it to the fixed station, and the clamping assembly 503 clamps the overlapping part of the two ends of the sample rubber strip ring 10, and then the second longitudinal driving device 50521 of the nailing assembly 505 drives the nailer 50523 to move downward to the overlapping part of the two ends of the sample rubber strip ring 10 and clamp it, and then the auxiliary cylinder 5042 of the horizontal support assembly 504 drives the pin 5043 and the baffle 5044 to move to a position close to the sample rubber strip ring 10 and respectively abut against the bottom end and the outer periphery of the sample rubber strip ring 10, and at least one horizontal The pin 5043 and the baffle 5044 of the support assembly 504 are respectively in contact with the bottom and periphery of the overlapping parts of the two ends of the initial rubber strip ring 10, so that the initial rubber strip ring 10 is in a horizontal state as a whole and the upper and lower ends of the initial rubber strip ring 10 are respectively level and flush, and then the lateral drive device 50524 of the nailing assembly 505 drives the nailer 50523 to achieve nailing and fixing, and then the first longitudinal drive device 5032 of the clamping assembly 503 drives the third pneumatic mechanical clamp 5033 to move downward to the table surface close to the workbench, and then the third pneumatic mechanical clamp 5033 is controlled to be loosened, so that the fixed finished rubber strip ring falls on the table surface, and the other structures are reset respectively. The above-mentioned rubber strip ring fixing mechanism 500 makes the production of the finished rubber strip ring after fixing high in yield and high in production efficiency.

[0083] In this embodiment, the horizontal support assembly 504 includes two and is respectively located on opposite sides of the frame 1, and the two horizontal support assemblies 504 are both arranged toward the third pneumatic mechanical clamp 5033. The arrangement of the two horizontal support assemblies 504 enables the upper and lower ends of the initial rubber strip ring 10 to be more stably parallel to the horizontal plane when the initial rubber strip ring 10 is nailed and fixed, and the yield rate of the finished rubber strip ring after fixation is higher.

[0084] Of course, the above structure is only a single-station rubber strip ring fixing mechanism. According to the principle of the single-station rubber strip ring fixing mechanism, the present invention can also be set to a double working structure, that is, the clamping assembly 503 includes two groups and is spaced along the extension direction of the slide rail 502, the horizontal support assembly 504 includes two groups and is spaced along the extension direction of the slide rail 502, and the nailing assembly 505 includes two groups and is spaced along the extension direction of the slide rail 502. The structure and principle are the same, only the common slide rail 502 and the frame 100. Of course, the driving units of the above structures all work through the driving time and driving stroke preset by the controller, which is easy to think of.

[0085] Please combine Figure 4-6The automatic folding mechanism 600 of the rubber strip ring is used to squeeze and fold the finished rubber strip ring so that the peripheral size of the finished rubber strip ring 101 after being folded becomes smaller, and after the pipe mouth of the ventilation pipe is covered with the folded finished rubber strip ring 101, the finished rubber strip ring 101 is restored to its deformation, thereby making the finished rubber strip ring 101 abut against the inner wall of the pipe mouth of the ventilation pipe and realizing the edge wrapping of the ventilation pipe.

[0086] Specifically, the strip ring automatic folding mechanism 600 includes a folding table 602 and a driving unit 603 .

[0087] The folding table 602 and the driving unit 603 are mounted on the frame 100 .

[0088] The folding table 602 includes a table plate 6021 supported and fixed on the top of the frame 100, a slide rail groove 6022 penetrating the table plate 6021 and extending along the length direction of the table plate 6021, and two first stopper columns 6023 fixed on the table plate 6021. The two first stopper columns 6023 are spaced apart and arranged on opposite sides of the slide rail groove 6022.

[0089] In this embodiment, preferably, the two first blocking columns 6023 are symmetrically arranged with respect to the slide rail groove 6022 , which has better reliability when holding the deformed finished tape ring 101 flat.

[0090] The driving unit 603 includes a first driving device 6031 , a second driving device 6032 and a push pin 6033 .

[0091] The first driving device 6031 is fixed to the peripheral side of the frame 100 and is located below the platform 6021 . The first driving device 6031 is located at one end of the slide rail groove 6022 , and the output shaft of the first driving device 6031 is arranged parallel to the slide rail groove 6022 .

[0092] The second driving device 6032 is fixed to the output shaft of the first driving device 6031 and is located directly below the slide rail groove 6022 . The output shaft of the second driving device 6032 is arranged perpendicular to the slide rail groove 6022 .

[0093] One end of the push post 6033 is fixed to the output shaft of the second driving device 6032 , and the other end of the push post 6033 is aligned with the slide rail groove 6022 .

[0094] The second driving device 6032 is used to drive the push post 6033 to move upward to pass through the slide rail slot 6022 and protrude from the table 6021, and is also used to drive the push post 6033 to retract downward to be located below the table 6021. The first driving device 6031 is used to drive the second driving device 6032 to move in a direction parallel to the slide rail slot 6022, so as to drive the push post 6033 to move in a direction away from the first driving device 6031 along the slide rail slot 6022 when the push post 6033 passes through the slide rail slot 6022, or to drive the push post 6033 to move in a direction close to the first driving device 6031 when the push post 6033 retracts to be located below the table 6021. In this embodiment, the first driving device 6031 and the second driving device 6032 are both cylinders.

[0095] Preferably, the driving unit 603 further includes two third driving devices 6034, which are fixed to the frame 100 and located below the table 6021. The output shafts of the two third driving devices 6034 are respectively fixedly connected to the two first blocking columns 6023, and are used to drive the first blocking columns 6023 to extend upward to the top of the table 6021 or to retract downward to the bottom of the table 6021. That is, the first blocking column 6023 is arranged through the table 6021, and is fixed to the table 6021 by the driving positioning of the third driving device 6034. The third driving device 6034 can be driven upward to move the first blocking column 6023 upward to be exposed on the table 6021, and can also be driven downward to move the first blocking column 6023 downward to be retracted and located below the table 6021. In this embodiment, the third driving device 6034 is a cylinder.

[0096] When in use, the third driving device 6034 drives the two first stop posts 6023 to move upward to above the table 6021, and the finished tape ring 101 is placed on the folding table 602 so that the finished tape ring 101 is located on one side of the two first stop posts 6023. At this time, the second driving device 6032 drives the push post 6033 to move upward from the initial position to pass through the slide rail groove 6022 and protrude from the table 6021. At this time, the finished tape ring 101 is located in the triangle formed by the push post 6033 and the two first stop posts 6023. The first driving device 6031 then drives the second driving device 6032 to move in a direction parallel to the slide rail groove 6022, so as to drive the push post 6033 to move along the slide rail groove 6022 in a direction away from the first driving device 6031, so that the push post 6033 squeezes the finished tape ring 101 on the folding table 602, and the finished tape ring 101 is deformed due to the squeezing of the push post 6033 and the limiting of the first stop post 6023, until the push post 6033 moves close to the first stop post 6023. The finished tape ring 101 is squeezed and deformed to be in an 8-shaped shape and partially clamped between the two first stopper pillars 6023. The outer circumference of the finished tape ring 101 is smaller than the diameter of the ventilation pipe to be wrapped due to the deformation. At this time, one end of the ventilation pipe to be wrapped is placed on the deformed finished tape ring 101, and the push pillar 6033 is driven downward to be located below the table 6021 by the second driving device 6032, and the first stopper pillar 6023 is driven downward to be located below the table 6021 by the third driving device 6034. The bottom of the table 6021, and the first driving device 6031 drives the push column 6033 to reset after it retracts to the bottom of the table 6021. The tape ring 10 recovers its elastic deformation due to the disappearance of the squeezing force of the push column 6033 and the first stop column 6023, and just fits on the inner side of the port of the ventilation pipe to achieve edge wrapping, which effectively improves the edge wrapping efficiency. Moreover, because the tape ring is prefabricated, when assembling, the end face cover of the ventilation pipe is set on the folding table 602 to be flush with the end face of the finished tape ring 101, and there is no need for further cutting, which has better reliability.

[0097] The above-mentioned automatic folding mechanism 600 for the rubber strip ring is described as a single-station structure. According to the above structure, double-station hemming can also be achieved, that is, two sets of the driving unit 603 are provided, and the two sets of the driving unit 603 are respectively installed on opposite sides of the frame 100 and respectively located at the two ends of the slide rail groove 6022. Each set of the driving unit 603 includes a first driving device 6031, a second driving device 6032, a push column 6033 and two third driving devices 6034. The table 6021 is also provided with two second blocking columns 6024, which are arranged at intervals on opposite sides of the slide rail slot 6022, and the two second blocking columns 6024 and the two first blocking columns 6023 are arranged at intervals along the extension direction of the slide rail slot 6022, that is, the two push columns 6033 correspond to the two first driving devices 6031 one by one, and the two first blocking columns 6023 and the two second blocking columns 6024 correspond to the four third driving devices 6034 one by one, which is equivalent to two sets of workstations working synchronously, further improving the assembly efficiency. In addition, the other structures and working principles are the same as above.

[0098] It should be noted that each mechanism of the ventilation duct hemming machine of the present invention is controlled by the main machine 200, which controls the driving units of each mechanism to realize the actions. The design of the specific actions is changed according to the needs, which is easy for ordinary technicians in the field to think of and can be realized without creative work. The control itself is the application of the existing technology.

[0099] Please combine Figure 1-7 As shown, an embodiment of the present invention further provides a ventilation duct hemming method, which is implemented based on the ventilation duct hemming machine 100 provided by the present invention, and comprises the following steps:

[0100] Step S1, gluing the rubber strip discharged from the rubber strip reel supported by the rubber strip reel supporting mechanism 300 on one side through the gluing mechanism 700.

[0101] Step S2, stretching the rubber strip that has been glued on one side by the gluing mechanism 700 to a preset length through the rubber strip winding mechanism 400, and rolling the stretched rubber strip of the preset length into a ring-shaped prototype rubber strip ring, and making the head and tail ends of the prototype rubber strip ring partially overlap; wherein, the side of the prototype rubber strip ring that is glued is its outer peripheral side.

[0102] In this step, the preset lengths of the rubber strip stretching are different, thereby achieving the control of the edging of ventilation pipes of different diameters.

[0103] Step S3, clamping the overlapping parts of the initial rubber strip ring formed by the rubber strip winding mechanism 400 through the rubber strip ring fixing mechanism 500, and nailing the overlapping parts to fix them, so as to form a finished rubber strip ring.

[0104] Step S4, applying extrusion force to the finished rubber strip ring through the rubber strip ring automatic folding mechanism 600, so that the finished rubber strip ring is compressed and folded inwardly and deformed after being squeezed in the horizontal direction, and the peripheral size of the finished rubber strip ring becomes smaller after being compressed and folded inwardly and deformed.

[0105] Step S5, arranging the pipe cover of the ventilation pipe to be edged on the finished rubber strip ring that is compressed, folded and deformed inwardly.

[0106] Since the outer circumference of the finished rubber ring is generally equal to the inner diameter of the ventilation pipe to be edged, and the outer circumference after being compressed and folded inwards is compressed into a C-shaped 8, its outer circumference size is smaller than before compression and deformation, making it easier and faster for the ventilation pipe to be edged to be mounted on the finished rubber ring after being compressed and folded inwards.

[0107] Step S6, the automatic folding mechanism 600 of the rubber strip ring cancels the extrusion force applied to the finished rubber strip ring that has been compressed and folded inwardly, so that the finished rubber strip ring that has been compressed and folded inwardly recovers its deformation and fits on the inner circumference of the pipe opening of the ventilation pipe to be wrapped.

[0108] Since there is a glue layer on the outer circumference of the finished rubber ring, when it recovers its deformation and fits on the inner circumference of the ventilation pipe, the two are also glued together, that is, the edge wrapping is achieved.

[0109] It should be noted that, in each step of the ventilation pipe hemming method of the present invention, the driving modes of the gluing mechanism 700, the rubber strip disc supporting mechanism 300, the rubber strip winding mechanism 400, the rubber strip ring fixing mechanism 500 and the rubber strip ring automatic folding mechanism 600 are all realized by the main engine 200 controlling each driving device. For details, please refer to the structure and working principle description of the above-mentioned ventilation pipe hemming machine 1000 provided by the present invention, which will not be repeated here.

[0110] Compared with the prior art, in the ventilation pipe hemming machine and ventilation pipe hemming method of the present invention, a rubber strip disc supporting mechanism, a rubber strip winding mechanism, a rubber strip ring fixing mechanism and a rubber strip ring automatic folding mechanism arranged on the frame are arranged in sequence according to the process steps; and a main machine is arranged to be electrically connected to the rubber strip winding mechanism, the rubber strip ring fixing mechanism and the rubber strip ring automatic folding mechanism, respectively, for respectively controlling the working states of the rubber strip winding mechanism, the rubber strip ring fixing mechanism and the rubber strip ring automatic folding mechanism; the rubber strip disc supporting mechanism is used to support the rubber strip reel to realize the rubber strip discharging; the rubber strip winding mechanism is used to stretch the rubber strip of the rubber strip reel on the rubber strip disc supporting mechanism to a preset length, and to stretch the stretched rubber strip to a preset length. The rubber strip of preset length is rolled into a ring-shaped prototype rubber strip ring, and the ends of the prototype rubber strip ring are partially overlapped; the rubber strip ring fixing mechanism is used to clamp the overlapped parts of the prototype rubber strip ring rolled by the rubber strip ring rolling mechanism, and nail the overlapped parts to fix them, so as to make a finished rubber strip ring; the rubber strip ring automatic folding mechanism is used to squeeze and fold the finished rubber strip ring, so that the peripheral size of the finished rubber strip ring after being folded becomes smaller, at this time, the pipe mouth of the ventilation pipe to be edged is set on the folded finished rubber strip ring, and the finished rubber strip ring is allowed to restore its deformation, and the finished rubber strip ring is automatically attached to the inner wall of the pipe mouth of the ventilation pipe to achieve edge wrapping. Therefore, the ventilation pipe edge wrapping machine of the present invention not only has high production efficiency and high yield rate of unified standards, but also can realize the rolling of rubber strip rings of different diameters through the rubber strip ring rolling mechanism, and is suitable for ventilation pipes of different diameters, with a wide range of applications.

[0111] 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 structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A ventilation pipe hemming machine, used for hemming the inner side of the pipe opening of the ventilation pipe, characterized in that: The ventilation pipe hemming machine comprises a frame, a main machine installed on the frame, and a rubber strip disc supporting mechanism, a gluing mechanism, a rubber strip coiling mechanism, a rubber strip coil fixing mechanism and a rubber strip coil automatic folding mechanism which are sequentially arranged on the frame according to workstations; The host is electrically connected to the gluing mechanism, the rubber strip winding mechanism, the rubber strip fixing mechanism and the rubber strip automatic folding mechanism, respectively, and is used to control the working states of the gluing mechanism, the rubber strip winding mechanism, the rubber strip fixing mechanism and the rubber strip automatic folding mechanism respectively; The rubber strip reel support mechanism is used to support the rubber strip reel to realize rubber strip discharging; The gluing mechanism is used to glue the rubber strip discharged from the rubber strip reel supported by the rubber strip reel supporting mechanism on one side; The rubber strip coiling mechanism is used to stretch the rubber strip that has been glued on one side by the gluing mechanism to a preset length, and to roll the stretched rubber strip of the preset length into a ring-shaped initial rubber strip coil, and to make the head and tail ends of the initial rubber strip coil partially overlap; The rubber strip ring fixing mechanism is used to clamp the overlapping parts of the head and tail of the sample rubber strip ring rolled by the rubber strip winding mechanism, and nail the overlapping parts of the head and tail to achieve fixation, so as to make a finished rubber strip ring; The automatic folding mechanism of the rubber strip ring is used to squeeze and fold the finished rubber strip ring so that the peripheral size of the finished rubber strip ring after being folded becomes smaller, and to restore the deformation of the finished rubber strip ring after the pipe cover of the ventilation pipe is arranged on the folded finished rubber strip ring.

2. The ventilation pipe hemming machine according to claim 1, characterized in that: The frame includes a first section and a second section extending vertically from the first section, the rubber disc supporting mechanism, the gluing mechanism and the rubber ring winding mechanism are installed on the first section, and the rubber ring fixing mechanism and the rubber ring automatic folding mechanism are installed on the second section.

3. The ventilation pipe hemming machine according to claim 1, characterized in that: The gluing mechanism comprises a mounting frame, a rotating motor, a gluing turntable, a glue tray and a guide frame; The mounting frame includes a main bracket fixed to the frame and a guide block mounted on the main bracket; The gluing turntable is mounted on the main bracket and is rotatably connected with the main bracket, and the highest point of the gluing turntable is higher than the guide block; the rotating motor is mounted on the main bracket and connected to the gluing turntable, and is used to drive the gluing turntable to rotate; The glue tray is installed on the main bracket to hold glue; the upper glue turntable is located directly above the glue tray, and the upper glue turntable is in contact with the glue held in the glue tray; The guide frame includes a sub-bracket fixed to the frame and located on the side of the upper glue turntable away from the guide block, and a guide rod installed on the sub-bracket and arranged horizontally, wherein the guide rod is lower than the highest point of the upper glue turntable; The rubber strip discharged from the rubber strip reel is wound around the bottom of the guide block, extends to the upper half of the peripheral side of the upper glue turntable and adheres to it, and then extends to the bottom of the guide rod and then discharges; When the rubber strip winding mechanism stretches the rubber strip, the rotating motor rotates synchronously to achieve gluing on one side of the rubber strip.

4. The ventilation pipe hemming machine according to claim 1, characterized in that: The rubber strip winding mechanism comprises a push-pull driving unit, a winding unit, a rubber strip clamping unit and a cutting unit; The push-pull drive unit comprises a guide rail with two ends supported by the frame, a push-pull drive located at one end of the guide rail, and a support plate supported by the guide rail and slidably connected to the guide rail; the push-pull drive is connected to the support plate and drives the support plate to reciprocate along the guide rail; wherein the guide rail is arranged parallel to the first section; The coiling unit comprises a rotary motor fixed to the support plate, a rotating arm fixed to the output shaft of the rotary motor, and a first pneumatic mechanical clamp fixed to one end of the rotating arm away from the output shaft of the rotary motor; the output shaft of the rotary motor is arranged upward, and the clamping mouth of the first pneumatic mechanical clamp is arranged upward, and is used to clamp the rubber strip and rotate and roll it into the initial rubber strip coil; The rubber strip clamping unit comprises a support frame located on a side of the support plate close to the push-pull driver and a second pneumatic mechanical clamp fixed to the support frame, wherein the second pneumatic mechanical clamp is used to position the rubber strip discharged from the rubber strip reel; The cutting unit includes a cutting cylinder fixed to the frame and suspended between the first pneumatic mechanical clamp and the second pneumatic mechanical clamp, and a mechanical scissors fixed to the output end of the cutting cylinder. The scissor mouths of the mechanical scissors are set downward, and the cutting cylinder drives the mechanical scissors to move up and down.

5. The ventilation pipe hemming machine according to claim 4, characterized in that: The push-pull drive includes a push-pull motor located at one end of the guide rail and a lead screw supported by the frame and parallel to the guide rail, the output shaft of the push-pull motor is fixed to one end of the lead screw and drives the lead screw to rotate, and the bottom of the support plate forms a transmission connection with the lead screw; the winding unit also includes an auxiliary support platform fixed to one side of the first pneumatic mechanical clamp, and the table surface of the auxiliary support platform is parallel to the bottom end of the clamping mouth of the first pneumatic mechanical clamp; the rubber strip winding mechanism also includes a blowing air pipe fixed to the frame and suspended on the inner side of the winding unit, and the air outlet of the blowing air pipe is used to blow air from the inside to the outside to the rubber strip clamped by the winding unit.

6. The ventilation pipe hemming machine according to claim 1, characterized in that: The rubber strip ring fixing mechanism includes a slide rail, a clamping assembly, a horizontal support assembly and a nailing assembly; The slide rail is fixed to one side of the rack, and the slide rail is located above the rack and is arranged horizontally; The clamping assembly includes a slider installed on the slide rail and capable of sliding left and right along the slide rail, a first longitudinal driving device fixed to the slider, and a third pneumatic mechanical clamp fixed to the output shaft of the first longitudinal driving device; the first longitudinal driving device is used to drive the third pneumatic mechanical clamp to move downward or upward, and the third pneumatic mechanical clamp is used to clamp the initial rubber strip ring to be fixed; The horizontal support assembly includes a support rod fixed to the other side of the frame, an auxiliary cylinder fixed to the support rod, a pin fixed to the output shaft of the auxiliary cylinder, and a baffle sleeved and fixed to the pin; the auxiliary cylinder is horizontally arranged with its output shaft facing the mechanical clamp, and when the auxiliary cylinder drives the pin to move toward the mechanical clamp to a fixed stroke, the pin is supported on the bottom end of the initial rubber strip ring, and the baffle abuts against the outer periphery of the initial rubber strip ring; The nailing assembly includes a main rod fixed to the frame and located on the same side of the frame as the slide rail, and a nailing module fixed to the main rod; the nailing module includes a second longitudinal driving device fixed to the main rod, a mounting block fixed to the output shaft of the second longitudinal driving device, and a nailer and a transverse driving device respectively fixed to the mounting block, the nailing module is located above the clamping assembly and is staggered; the nailing port end of the nailer faces downward and faces the overlapping parts of the two ends of the initial rubber strip ring, one of the two movable arms of the nailer is fixed to the mounting block, and the other of the two movable arms of the nailer is fixedly connected to the output shaft of the transverse driving device; the second longitudinal driving device is used to drive the mounting block to move downward so that the nailing port of the nailer faces the initial rubber strip ring and moves to be flush with the third pneumatic mechanical clamp, and the transverse driving device is used to drive one of the movable arms of the nailer to move toward the other movable arm to achieve nailing, so as to form the finished rubber strip ring.

7. The ventilation pipe hemming machine according to claim 6, characterized in that: The first longitudinal drive device, the second longitudinal drive device and the transverse drive device are all cylinders; the horizontal support components include two and are respectively located on opposite sides of the frame, and the two horizontal support components are both arranged toward the third pneumatic mechanical clamp.

8. The ventilation pipe hemming machine according to claim 1, characterized in that: The automatic folding mechanism for the rubber strip ring includes a folding table and a driving unit; The folding table includes a table plate supported and fixed on the top of the frame, a slide rail groove penetrating the table plate and extending along the length direction of the table plate, and two first stop columns fixed on the table plate, the two first stop columns are spaced apart and arranged on opposite sides of the slide rail groove; The driving unit comprises a first driving device, a second driving device and a push column; the first driving device is fixed to the peripheral side of the frame and is located below the table, the first driving device is located at one end of the slide rail groove, and the output shaft of the first driving device is arranged parallel to the slide rail groove; the second driving device is fixed to the output shaft of the first driving device and is located directly below the slide rail groove, and the output shaft of the second driving device is arranged perpendicular to the slide rail groove; one end of the push column is fixed to the output shaft of the second driving device, and the other end of the push column is directly opposite to the slide rail groove; The second driving device is used to drive the push column to move upward so as to pass through the slide rail groove and protrude from the table, and is also used to drive the push column to retract downward to be located below the table; the first driving device is used to drive the second driving device to move in a direction parallel to the slide rail groove, so as to drive the push column to move along the slide rail groove away from the first driving device when it passes through the slide rail groove, or to drive the push column to move in a direction close to the first driving device when it retracts to be located below the table.

9. The ventilation pipe hemming machine according to claim 8, characterized in that: The driving unit also includes two third driving devices, which are fixed to the frame and located below the table. The output shafts of the two third driving devices are respectively fixedly connected to the two first stop columns, and are used to drive the first stop columns to extend upward to above the table or retract downward to below the table. The two first stop columns are symmetrically arranged about the slide rail groove; the first driving device, the second driving device and the third driving device are all cylinders.

10. A ventilation pipe hemming method, the ventilation pipe hemming method is based on the ventilation pipe hemming machine according to any one of claims 1 to 9, characterized in that: The ventilation pipe hemming method comprises the following steps: Step S1, applying glue on one side of the rubber strip discharged from the rubber strip reel supported by the rubber strip reel supporting mechanism by means of the gluing mechanism; Step S2, stretching the rubber strip that has been glued on one side by the glue-applying mechanism to a preset length by the rubber strip winding mechanism, and rolling the stretched rubber strip of the preset length into a ring-shaped initial rubber strip ring, and making the head and tail ends of the initial rubber strip ring partially overlap; wherein the glued side of the initial rubber strip ring is its outer peripheral side; Step S3, clamping the overlapping parts of the initial rubber strip ring formed by the rubber strip winding mechanism through the rubber strip ring fixing mechanism, and nailing the overlapping parts of the initial rubber strip ring to achieve fixation, so as to form a finished rubber strip ring; Step S4, applying a squeezing force to the finished rubber strip ring through the rubber strip ring automatic folding mechanism, so that the finished rubber strip ring is compressed and folded inwardly to be deformed after being squeezed in the horizontal direction, and the outer circumference size of the finished rubber strip ring after being compressed and folded inwardly to be deformed becomes smaller; Step S5, arranging the pipe cover of the ventilation pipe to be edged on the finished rubber strip ring that is compressed, folded and deformed inwardly; Step S6, canceling the extrusion force applied to the finished rubber strip ring that has been compressed and folded inwardly through the automatic folding mechanism of the rubber strip ring, so that the finished rubber strip ring that has been compressed and folded inwardly can restore its deformation and fit on the inner circumference of the pipe opening of the ventilation pipe to be wrapped.

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