Belt passing distance adjusting device applied to looping mechanism

Abstract

The invention discloses a belt passing distance adjusting device applied to a looping mechanism which comprises a base frame, a belt passing device, a feeding driving device, an ultrasonic welding device, a material cutting device, a waste material driving device, a leveling auxiliary device, a material separating device, a positioning device and a waste material guiding and conveying device. The waste material guiding and conveying device comprises a material guiding plate, a first limiting plate and a second limiting plate, the first limiting plate is fixed to the material guiding plate, and the belt passing distance adjusting device comprises a driving source and is installed on the base frame; a screw rod extending in the left-right direction and linked to the driving source; according to the belt passing distance adjusting device, the belt passing distance adjusting device is installed on the waste material guiding and conveying device, when the width of a waste material channel needs to be adjusted, the first motor drives the lead screw to rotate, then the nut base installed on the lead screw is driven, the belt passing distance adjusting device is installed on the nut base, and the belt passing distance adjusting device is installed on the belt passing distance adjusting device. And the first limiting plate and the second limiting plate fixed on the nut seat translate left and right together, so that automatic adjustment can be realized, and the adjustment precision can be ensured.

Description

Technical Field

[0001] The invention relates to the field of rubber band machine equipment, in particular to a belt-passing spacing adjustment device applied to a loop forming mechanism. Background Art

[0002] Elastic bands, also known as stretch bands and rubber bands, can be used as the bottom line of clothing accessories. They are particularly suitable for the production of underwear, pants, baby clothes, sweaters, sportswear, rhyme clothes, wedding dresses, T-shirts, hats, bras, masks and other clothing products.

[0003] The automated production of elastic bands generally uses bundled or rolled elastic bands as raw materials. The elastic bands are cut into fixed lengths by a fixed-length cutting device, and then the elastic band segments are rolled into loops by a coiling device. The rolled elastic band segments are then transported to a sewing device, and the elastic band segments are sewed and sealed by the sewing device to finally obtain elastic bands.

[0004] In the process of looping of traditional rubber band machines, after the elastic band is cut off, the elastic band will continue to be transported to the coiling device. At the coiling device, the elastic band needs to be looped by a manipulator and a rotating motor. In addition, during the sewing process, the elastic band needs to be kept in the looped state by a manipulator. The overall space occupied is large, the structure is complex, and the equipment power consumption is large. Therefore, I have previously developed a looping mechanism and applied for a patent. In this technical solution, the looping of the elastic band is completed by looping first and then sewing, and no waste will be left at the welding position. The overall space occupied is small and the looping efficiency is high. In addition, in subsequent patents, I disclosed a technical solution for adding a tensioning device and a pressing device to achieve better stretching of the elastic band and waste recovery. However, after actual application, I found that the above-mentioned equipment still has certain defects, such as the inability to conveniently adjust the belt spacing. At present, it can only be adjusted manually. When the width of the elastic band changes, this adjustment method has low adjustment efficiency and the adjustment accuracy cannot be well controlled. Summary of the invention

[0005] In order to solve the above problems, the present invention proposes a belt-passing spacing adjustment device applied to a loop-forming mechanism.

[0006] The technical solution adopted by the present invention is: a belt-passing spacing adjustment device applied to a loop-forming mechanism, the loop-forming mechanism includes a base frame, the base frame includes a front end and a rear end, the front end is provided with a belt-passing device and at least one waste driving device, the rear end is provided with a feeding driving device, a cutting device, a leveling auxiliary device, a material separation device, a positioning device and a waste guiding device, the base frame is also provided with an ultrasonic welding device, the ultrasonic welding device is installed below the belt-passing device, and cooperates with the cutting device to complete the synchronous cutting and welding of the elastic band, and form it into an elastic ring, the welding position of the elastic ring has waste, the belt-passing device includes a belt-passing channel and a waste channel arranged in an upper and lower interval, the waste guiding device is used to guide the waste to the waste channel, and includes a guide plate, and a first limit plate and a second limit plate arranged above the guide plate, the first limit plate and the second limit plate are arranged in a left-right interval, and the first limit plate is fixed on the guide plate, and the belt-passing spacing adjustment device includes:

[0007] A driving source, mounted on the rear end;

[0008] A screw rod extending in the left-right direction and linked to the driving source;

[0009] The nut seat is mounted on the screw rod, and the second limiting plate is fixed on the nut seat.

[0010] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0011] Preferably, the belt-passing spacing adjustment device further comprises a fixing plate fixed to the left end of the material guide plate, the end of the screw rod is mounted on the fixing plate via a bearing, and the screw rod is arranged below the material guide plate.

[0012] Preferably, a slide rail extending in the left-right direction is fixed below the material guide plate, a slider is fixed on the nut seat, and the slider is slidably mounted on the slide rail.

[0013] Preferably, the guide plate is provided with a guide opening extending in the left-right direction, a guide block is fixed on the nut seat, the guide block passes through the guide opening, and the second limiting plate is provided with a connecting block for cooperating and fixing on the upper end of the guide block.

[0014] Preferably, the rear end includes a first side plate and a second side plate arranged at intervals on the left and right, a mounting plate is fixed on the first side plate, the driving source includes a first motor fixed on the mounting plate, and a synchronous pulley assembly is provided between the first motor and the end of the screw rod.

[0015] Preferably, a material guide roller, a first entrainment rod and at least one second entrainment rod are provided between the first limiting plate and the second limiting plate, and the waste material is passed between the material guide roller and the first entrainment rod, and between the second entrainment rod and the material guide plate.

[0016] Preferably, a limiting block is provided above the material guide plate, and the limiting block is located on a side of the second limiting plate away from the first limiting plate.

[0017] Preferably, a first baffle and a second baffle are respectively provided on the left and right sides of the belt passing channel, wherein the first baffle is fixed above the belt passing channel, and the belt passing spacing adjustment device also includes a driving assembly arranged on one side of the second baffle, and the driving assembly is used to drive the second baffle to translate left and right, and keep the spacing between the first baffle and the second baffle consistent with the spacing between the first limit plate and the second limit plate.

[0018] Preferably, a first baffle and a second baffle are respectively provided on the left and right sides of the belt-passing channel, wherein the first baffle is fixed above the belt-passing channel, and the belt-passing spacing adjustment device also includes a connecting piece fixed between the second baffle and the second limiting plate, and an opening for the connecting piece to pass through is provided on the belt-passing channel, and the opening extends in the left-right direction.

[0019] More preferably, the leveling auxiliary device comprises:

[0020] A bracket plate, fixed to the fixing plate;

[0021] A first cylinder is fixed on the support plate, the first cylinder is linked to a first clamp, a leveling piece is fixed on the first clamp, and the leveling piece is located above the first clamp;

[0022] The second cylinder is fixed on the first side plate through a mounting member. The second cylinder is linked to a second clamp. The first clamp and the second clamp are arranged in left-right alignment and at intervals.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. By installing a belt spacing adjustment device on the waste guiding device, when the spacing between the first limiting plate and the second limiting plate needs to be adjusted, the first motor drives the screw to rotate, thereby driving the nut seat installed on the screw to move left and right. Since the second limiting plate is fixed on the nut seat, the second limiting plate can move left and right with the nut seat, thereby adjusting the width of the waste channel, realizing automatic adjustment, and ensuring the adjustment accuracy;

[0025] 2. By setting a connecting piece between the second limit plate and the second baffle, the second limit plate and the second baffle can be controlled to move left and right synchronously, so that the width of the waste channel and the belt passing channel can be adjusted at the same time and keep the two consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 This is an overall structural diagram from an upper side perspective in one embodiment of the present application;

[0028] Figure 2 For the general Figure 1 The overall structure diagram after the second limiting plate in the figure is translated to the side close to the first limiting plate;

[0029] Figure 3 This is an overall structural diagram from a bottom side perspective in one embodiment of the present application;

[0030] Figure 4 This is an overall structural diagram of a loop forming mechanism involved in one embodiment of the present application from a rear side perspective;

[0031] Figure 5 This is an overall structural diagram from a front side perspective of a loop forming mechanism involved in one embodiment of the present application;

[0032] Figure 6 It is a schematic diagram of the first viewing angle structure of the loop forming mechanism involved in one embodiment of the present application after the visual alignment device, the first cover shell and the second cover shell are hidden;

[0033] Figure 7 It is a schematic diagram of the second viewing angle structure of the loop forming mechanism involved in one embodiment of the present application after the visual alignment device, the first cover shell and the second cover shell are hidden;

[0034] Figure 8 It is a third perspective structural schematic diagram of the loop forming mechanism involved in one embodiment of the present application after hiding the visual alignment device, the first cover shell and the second cover shell;

[0035] Fig. 9 It is a schematic diagram of the structure from a fourth perspective after the loop forming mechanism involved in one embodiment of the present application hides the visual alignment device, the first cover shell, and the second cover shell;

[0036] Fig.10It is a schematic diagram of the structure from a fifth viewing angle after the loop forming mechanism involved in one embodiment of the present application hides the visual alignment device, the first cover shell and the second cover shell;

[0037] Fig.11 It is a sixth perspective structural schematic diagram of the loop forming mechanism involved in one embodiment of the present application after hiding the visual alignment device, the first cover shell, the second cover shell and the second side plate;

[0038] Fig.12 for Fig.11 A partial enlarged view of part A;

[0039] Fig.13 This is a schematic diagram of the structure from a lower side perspective after a portion of the base frame is hidden in the loop forming mechanism involved in one embodiment of the present application;

[0040] Fig.14 for Fig.13 A partial enlarged view of part B in FIG.

[0041] Fig.15 This is a schematic plan view of the entire conveying path of the elastic band in one embodiment of the present application;

[0042] Fig.16 This is an assembly structure diagram of a nut seat and a bracket plate in one embodiment of the present application;

[0043] Fig.17 It is a structural schematic diagram of a leveling auxiliary device involved in an embodiment of the present application;

[0044] Fig.18 It is a schematic structural diagram of a belt stretching device and a belt pressing device involved in one embodiment of the present application.

[0045] The markings in the accompanying drawings are: a-elastic band, 1-base frame, 101-stand, 102-first side plate, 103-second side plate, 104-mounting plate, 105-first cover shell, 106-second cover shell, 107-third cover shell, 2-belt passing device, 201-belt passing channel, 202-waste channel, 203-feeding port, 204-first stop bar, 205-second stop bar, 3-feeding assembly, 4-belt passing spacing adjustment device, 4 01-first motor, 402-synchronous pulley assembly, 403-screw, 404-fixed plate, 405-nut seat, 4051-guide block, 4052-slider, 406-slide rail, 407-first clamping rod, 408-second clamping rod, 409-limiting block, 5-feeding drive device, 6-leveling auxiliary device, 601-bracket plate, 602-first cylinder, 603-first clamp, 604-leveling piece, 605 -Mounting part, 606-second cylinder, 607-second clamp, 7-spacer, 701-third cylinder, 702-tongue, 8-positioning device, 801-fourth cylinder, 802-push frame, 9-ultrasonic welding device, 901-ultrasonic vibrator, 902-die, 10-cutting device, 1001-fifth cylinder, 1002-cutter, 11-belt device, 1101-sixth cylinder, 1102-mounting block , 1103-belt pressing rod, 12-belt pressing device, 1201-seventh cylinder, 1202-connecting block, 1203-belt pressing rod, 13-waste guiding device, 1301-guide plate, 1302-first limit plate, 1303-second limit plate, 1304-guide port, 1305-feeding guide roller, 14-first waste driving device, 15-second waste driving device, 16-visual alignment device, 17-encoder assembly.

[0046] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0049] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] Specific implementation plan: see Figure 1-Figure 18 The present invention is a belt-passing spacing adjustment device 4 applied to a loop-forming mechanism. The loop-forming mechanism includes a base frame 1. The base frame 1 includes a front end and a rear end. The front end is provided with a belt-passing device 2 and at least one waste driving device. The rear end is provided with a feeding driving device 5, a cutting device 10, a leveling auxiliary device 6, a material spacing device 7, a positioning device 8 and a waste guiding device 13. The base frame 1 is also provided with an ultrasonic welding device 9. The ultrasonic welding device 9 is installed below the belt-passing device 2, and cooperates with the cutting device 10 to complete the synchronous cutting and welding of the elastic band a, and forms the elastic band into a loose The welding position of the tight ring and the elastic ring has waste material, the belt-passing device 2 includes a belt-passing channel 201 and a waste material channel 202 arranged in an upper and lower interval, the waste material guiding device 13 is used to guide the waste material to the waste material channel 202, and includes a guide plate 1301, and a first limit plate 1302 and a second limit plate 1303 arranged above the guide plate 1301, the first limit plate 1302 and the second limit plate 1303 are arranged in a left-right interval, and the first limit plate 1302 is fixed on the guide plate 1301, and the belt-passing spacing adjustment device 4 includes: a driving source, which is installed at the rear end;

[0051] The screw rod 403 extends in the left-right direction and is linked to the driving source;

[0052] The nut seat 405 is mounted on the screw rod 403 , and the second limiting plate 1303 is fixed on the nut seat 405 .

[0053] As a preferred implementation of this embodiment, please refer to Figure 1-Figure 3 It can be seen that the belt spacing adjustment device 4 also includes a fixed plate 404 fixed to the left end of the guide plate 1301, and the end of the screw rod 403 is installed on the fixed plate 404 through a bearing, and the screw rod 403 is arranged below the guide plate 1301.

[0054] Then, in this embodiment, a slide rail 406 extending in the left-right direction is fixed below the guide plate 1301 , a slider 4052 is fixed on the nut seat 405 , and the slider 4052 is slidably installed on the slide rail 406 .

[0055] Next, in this embodiment, a guide opening 1304 extending in the left-right direction is provided on the guide plate 1301, a guide block 4051 is fixed on the nut seat 405, the guide block 4051 passes through the guide opening 1304, and a connecting block is provided on the second limiting plate 1303 for cooperating and fixing on the upper end of the guide block 4051.

[0056] In addition, in this embodiment, the driving source includes a first motor 401 fixed on the mounting plate 104 , and a synchronous pulley assembly 402 is provided between the first motor 401 and the end of the lead screw 403 .

[0057] See also Figure 1 and Fig.15 It can be seen that in this embodiment, a material guide roller, a first entrainment rod 407 and at least one second entrainment rod 408 are provided between the first limiting plate 1302 and the second limiting plate 1303, and the waste material is passed between the material guide roller and the first entrainment rod 407, and between the second entrainment rod 408 and the material guide plate 1301.

[0058] See also Figure 1 and Figure 2 It can be seen that in this embodiment, a limit block 409 is provided above the material plate, and the limit block 409 is located on the side of the second limit plate 1303 away from the first limit plate 1302.

[0059] Working principle of the belt spacing adjustment device 4:

[0060] Since the first limiting plate 1302 is fixed on the material guide plate 1301, if the distance between the first limiting plate 1302 and the second limiting plate 1303 needs to be adjusted, the position of the second limiting plate 1303 needs to be adjusted. Figure 1 At this time, the distance between the first limiting plate 1302 and the second limiting plate 1303 is relatively large. Figure 2 In the state shown, the first motor 401 works and drives the screw 403 to rotate through the synchronous pulley assembly 402, thereby driving the nut seat 405 installed on the screw 403 to translate to the right. Since the second limit plate 1303 is fixed to the guide block 4051 on the nut seat 405 through the connecting block, the second limit plate 1303 follows the nut seat 405 to translate to the right synchronously (note that by opening the guide opening 1304 on the guide plate, during the translation of the nut seat 405 to the right, the guide block 4051 translates to the right along the guide opening 1304). When the second limit plate 1303 translates to the set position, the first motor 401 stops working, and the distance between the first limit plate 1302 and the second limit plate 1303 is reduced.

[0061] In this embodiment, there are two first entraining rods 407, and the upper ends of the first limiting plate 1302 and the second limiting plate 1303 are each provided with two notches, and the first entraining rods 407 are placed in the notches. The first entraining rods 407 and the second entraining rods 408 are provided to cooperate with the upper pressure limiting of the waste material on the one hand, and to assist in achieving a more stable left-right translation of the nut seat 405 and the second limiting plate 1303 on the other hand.

[0062] In addition, in this embodiment, by setting a slide rail 406 below the guide plate 1301, setting a slider 4052 on the nut seat 405, and sliding the slider 4052 on the slide rail 406, it can further assist in achieving a more stable left and right translation of the nut seat 405 and the second limit plate 1303.

[0063] See also Figure 5 It can be seen that in this embodiment, a first baffle 204 and a second baffle 205 are respectively provided on the left and right sides of the belt passage 201, wherein the first baffle 204 is fixed above the belt passage 201, and the belt passage spacing adjustment device 4 also includes a driving component arranged on one side of the second baffle 205, and the driving component is used to drive the second baffle 205 to translate left and right, and keep the spacing between the first baffle 204 and the second baffle 205 consistent with the spacing between the first limiting plate 1302 and the second limiting plate 1303.

[0064] More specifically, a first baffle 204 and a second baffle 205 are respectively provided on the left and right sides of the belt passage 201, wherein the first baffle 204 is fixed above the belt passage 201, and the belt passage spacing adjustment device 4 also includes a connecting piece fixed between the second baffle 205 and the second limiting plate 1303, and an opening for the connecting piece to pass through is provided on the belt passage 201, and the opening extends in the left and right directions.

[0065] Here, since the width of the elastic band a is consistent with that of the waste material, when the spacing between the first limit plate 1302 and the second limit plate 1303 changes, the spacing between the first stop bar 204 and the second stop bar 205 needs to be adjusted synchronously. There are two ways to adjust the spacing between the first stop bar 204 and the second stop bar 205. One is to set a driving component on one side of the second stop bar 205. The driving component can be installed in the same manner as the motor, the screw rod 403 and the nut seat 405 as described above, and the second stop bar 205 is fixed on the nut seat 405. The specific principle is referred to above, and then the position of the second stop bar 205 is adjusted by the driving component. The second is to fix the second stop bar 205 and the second limit plate 1303 through a connecting piece, so that the second limit plate 1303 and the second stop bar 205 can move left and right together.

[0066] To facilitate understanding of the working principle of the loop forming mechanism involved in the present invention, the patent application previously filed by the applicant is first cited below:

[0067] I submitted a Chinese invention patent with application number: 2023115471302 on November 20, 2023, and the patent name is a loop forming mechanism of a rubber band machine;

[0068] On February 26, 2024, I submitted a Chinese invention patent with application number: 2024203519334, and the patent name is a loop forming mechanism for a rubber band machine.

[0069] In the above two patent applications, the first one discloses the structure and working principle of the loop forming mechanism, and the second one is based on the first one, with the addition of a belt tensioning device 11 and a belt pressing device 12.

[0070] See also Figure 4-Figure 18 , the working principle of the loop forming mechanism is briefly described below:

[0071] In this embodiment, the front end includes a vertical frame 101, the belt passing device 2 is installed above the vertical frame 101, and the rear end includes a first side plate 102 and a second side plate 103 arranged at intervals on the left and right, and a mounting plate 104 is fixed on the first side plate 102. An encoder assembly 17 is provided above the belt passing device 2, and a feeding assembly 3 is also provided at the front end.

[0072] See also Fig.15 The elastic band a is driven forward by the feeding drive device 5, and the setting of the feeding component 3 can be used to facilitate the elastic band a to be fed into the belt passage 201 more smoothly.

[0073] The coil forming mechanism has a coil forming state and a coil dropping state. In the coil forming state, the waste driving device does not work; in the coil dropping state, the waste driving device works and transports the waste formed at the welding position during the coil forming process to the side close to the waste recovery end.

[0074] Here, in the looping state, the waste driving device does not work, which is equivalent to the waste driving device fixing the position of one end of the elastic band a. When the feeding driving device 5 works, the elastic band a will be continuously transported to the looping end. At this time, the elastic band a at the looping end will move downward and be initially formed into an elastic ring. Fig.15 . In the state of falling loops, it means that the ultrasonic welding device 9 and the cutting device 10 have cooperated to complete the cutting and welding of the ends of the elastic rings. At this time, the clamping device of the translation feeding mechanism takes away the elastic ring, and then the waste driving device works to transport the waste formed at the welding position during the loop forming process to the side close to the waste recovery end. Note that in a single loop forming process, the waste driving device only transports the waste formed once to the side close to the waste recovery end, which is equivalent to working for only a while, and the waste located in the waste channel 202 also only moves the distance of the waste formed once, in order to prevent the waste from affecting the next loop forming.

[0075] See also Figure 6 , Fig.11 , Fig.12 , Fig.13 and Fig.17 It can be seen that in this embodiment, the leveling auxiliary device 6 includes:

[0076] The support plate 601 is fixed on the fixing plate 404;

[0077] The first cylinder 602 is fixed on the bracket plate 601. The first cylinder 602 is linked to a first clamp 603. A leveling piece 604 is fixed on the first clamp 603. The leveling piece 604 is located above the first clamp 603.

[0078] The second cylinder 606 is fixed on the first side plate 102 through the mounting member 605. The second cylinder 606 is linked with the second clamping piece 607. The first clamping piece 603 and the second clamping piece 607 are arranged in left-right alignment and at intervals.

[0079] Working principle of the leveling auxiliary device 6: Since the support plate 601 is fixed on the nut seat 405, it will move left and right with the nut seat 405. Therefore, the first cylinder 602 fixed on the support plate 601 will remain on one side of the nut seat 405. After the position of the second limit plate 1303 is adjusted, the position of the first cylinder 602 will also be adjusted synchronously. When it is necessary to level the left and right sides of the elastic ring, the second cylinder 606 and the third cylinder 701 both work and drive the first clamp 603 and the second clamp 607 to abut against the left and right sides of the elastic ring respectively, and the leveling member 604 located above the first clamp 603 will abut against the upper position of the left side of the elastic ring.

[0080] Next, see Fig.10 and Fig.13 In this embodiment, the material separation device 7 includes a third cylinder 701 fixed below the rear end of the base frame 1, and the third cylinder 701 is used to drive the tongue 702 to translate left and right.

[0081] See also Fig.13 In this embodiment, the positioning device 8 includes a fourth cylinder 801 fixed to one side of the second side plate 103, and the fourth cylinder 801 is used to drive the push frame 802 to move forward and backward.

[0082] See 10 and Fig.15 In this embodiment, the ultrasonic welding device 9 includes an ultrasonic vibrator 901 and a die head 902 connected to each other; the cutting device 10 includes a sixth cylinder 1101; a cutter 1002, which is linked to the fifth cylinder 1001; the cutter 1002 and the die head 902 are arranged in a front-to-back position.

[0083] Also, see Fig.15 and Fig.18It can be seen that in this embodiment, the loop forming mechanism further includes a belt tensioning device 11 and a belt pressing device 12, wherein the belt tensioning device 11 includes a sixth cylinder 1101 fixed to one side of the first side plate 102, and the sixth cylinder 1101 is used to drive the mounting block 1102 and the belt tensioning rod 1103 fixed on the mounting block 1102 to translate forward and backward. The belt pressing device 12 includes a seventh cylinder fixed to one side of the first side plate 102, and the sixth cylinder 1101 is used to drive the connecting block 1202 and the belt pressing rod 1203 fixed on the connecting block 1202 to translate up and down.

[0084] In this embodiment, the outer cover of the first motor 401 and the seventh cylinder 1201 is provided with a first cover shell 105, the outer cover of the fourth cylinder 801 is provided with a second cover shell 106, and the outer cover of the ultrasonic vibrator 901 is provided with a third cover shell 107, thereby protecting each motor and cylinder.

[0085] In addition, in this embodiment, there are two waste driving devices, namely a first waste driving device 14 and a second waste driving device 15.

[0086] Since the material separation device 7, the positioning device 8, the ultrasonic welding device 9 and the material cutting device 10 are not much different from the technical solutions in the prior patents applied by me, only a brief introduction is given here.

[0087] After the elastic ring is initially formed, the third cylinder 701 of the leveling auxiliary device 6 drives the second clamp 607 to abut against the right side of the elastic ring; then, the third cylinder 701 of the material spacing device 7 drives the insert tongue 702 to be inserted into the elastic ring, and at the same time, the fourth cylinder 801 of the positioning device 8 drives the push frame 802 to abut against the front side of the elastic ring (the push frame 802 is located below the second clamp 607); then, the second cylinder 606 of the leveling auxiliary device 6 drives the first clamp 603 and the leveling piece 604 to abut against the left side of the elastic ring; after that, the third cylinder 701 of the material spacing device 7 drives the insert tongue 702 to reset, and the two clamping devices of the translation feeding mechanism are The devices respectively clamp the front end and the rear end of the elastic ring; then, the fourth cylinder 801 of the positioning device 8 drives the push frame 802 to reset; next, the cutting device 10 and the ultrasonic welding device 9 cooperate to cut and weld the upper end of the elastic ring to form a stable elastic ring; after that, the second cylinder 606 of the leveling auxiliary device 6 drives the first clamp 603 and the leveling piece 604 to reset, and the third cylinder 701 drives the second clamp 607 to reset; finally, the translation feeding mechanism translates the stable elastic ring to the sewing mechanism for sewing, and the waste driving device drives the waste generated by this looping to be transported to the waste channel 202. The principle is as above.

[0088] In addition, the structures and working principles of the belt tensioning device 11, the belt pressing device 12, the encoder assembly 17, the first waste drive device 14, the second waste drive device 15, the feeding drive device 5, and the feeding assembly 3 have been explained in detail in the patents previously applied for by the author, and will not be elaborated in this article.

[0089] The above description of a belt spacing adjustment device used in a loop forming mechanism of the present invention is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A belt-passing spacing adjustment device applied to a loop-forming mechanism, the loop-forming mechanism comprising a base frame, the base frame comprising a front end and a rear end, the front end being provided with a belt-passing device and at least one waste driving device, the rear end being provided with a feeding driving device, a cutting device, a leveling auxiliary device, a material separation device, a positioning device and a waste guiding device, the base frame being further provided with an ultrasonic welding device, the ultrasonic welding device being installed below the belt-passing device, and cooperating with the material-cutting device to complete the synchronous cutting and welding of the elastic band, and forming it into an elastic ring, the welding position of the elastic ring having waste material, the belt-passing device comprising a belt-passing channel and a waste channel arranged at intervals up and down, the waste guiding device being used to guide the waste material to the waste channel, and comprising a guide plate, and a first limit plate and a second limit plate arranged above the guide plate, the first limit plate and the second limit plate being arranged at intervals left and right, characterized in that The first limiting plate is fixed on the material guide plate, and the belt-passing spacing adjustment device comprises: A driving source, mounted on the rear end; A screw rod extending in the left-right direction and linked to the driving source; The nut seat is mounted on the screw rod, and the second limiting plate is fixed on the nut seat.

2. The belt-passing spacing adjustment device used in a loop forming mechanism according to claim 1, characterized in that: The belt-passing spacing adjustment device also includes a fixing plate fixed to the left end of the material guide plate, the end of the screw rod is mounted on the fixing plate via a bearing, and the screw rod is arranged below the material guide plate.

3. The belt-passing spacing adjustment device used in a loop forming mechanism according to claim 2, characterized in that: A slide rail extending in the left-right direction is fixed below the material guide plate, a slider is fixed on the nut seat, and the slider is slidably mounted on the slide rail.

4. The belt-passing spacing adjustment device used in a loop forming mechanism according to claim 3, characterized in that: The guide plate is provided with a guide opening extending in the left-right direction, a guide block is fixed on the nut seat, the guide block passes through the guide opening, and the second limiting plate is provided with a connecting block for cooperating and fixing on the upper end of the guide block.

5. The belt-passing spacing adjustment device used in a loop forming mechanism according to claim 4, characterized in that: The rear end includes a first side plate and a second side plate arranged at intervals on the left and right, a mounting plate is fixed to the first side plate, the driving source includes a first motor fixed to the mounting plate, and a synchronous pulley assembly is provided between the first motor and the end of the screw rod.

6. The belt-passing spacing adjustment device used in a loop forming mechanism according to claim 5, characterized in that: A material guide roller, a first entrainment rod and at least one second entrainment rod are arranged between the first limiting plate and the second limiting plate, and the waste material is arranged between the material guide roller and the first entrainment rod, and between the second entrainment rod and the material guide plate.

7. The belt-passing spacing adjustment device used in a loop forming mechanism according to claim 6, characterized in that: A limiting block is provided above the material guide plate, and the limiting block is located on a side of the second limiting plate away from the first limiting plate.

8. A belt-passing spacing adjustment device used in a loop forming mechanism according to any one of claims 1 to 7, characterized in that: A first baffle and a second baffle are respectively provided on the left and right sides of the belt-passing channel, wherein the first baffle is fixed above the belt-passing channel, and the belt-passing spacing adjustment device also includes a driving component arranged on one side of the second baffle, and the driving component is used to drive the second baffle to translate left and right, and keep the spacing between the first baffle and the second baffle consistent with the spacing between the first limit plate and the second limit plate.

9. A belt-passing spacing adjustment device used in a loop forming mechanism according to any one of claims 1 to 7, characterized in that: A first baffle and a second baffle are respectively provided on the left and right sides of the belt-passing channel, wherein the first baffle is fixed above the belt-passing channel, and the belt-passing spacing adjustment device also includes a connecting piece fixed between the second baffle and the second limiting plate, and an opening for the connecting piece to pass through is provided on the belt-passing channel, and the opening extends in the left-right direction.

10. The belt-passing spacing adjustment device used in a loop forming mechanism according to claim 5, characterized in that: The leveling auxiliary device comprises: A bracket plate, fixed on the nut seat; A first cylinder is fixed on the support plate, the first cylinder is linked to a first clamp, a leveling piece is fixed on the first clamp, and the leveling piece is located above the first clamp; The second cylinder is fixed on the first side plate through a mounting member. The second cylinder is linked to a second clamp. The first clamp and the second clamp are arranged in left-right alignment and at intervals.

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