Full-automatic plastic handle making and installing machine for metal packaging can

Abstract

A kind of full-automatic production and installation machine of plastic handle of metal packaging can. The present application is to solve the problem of not specific and perfect structure of existing production equipment, affect the efficient production and wide application of this kind of plastic handle. Technical points: including rack, metal packaging can body conveying mechanism, plastic handle production mechanism, plastic handle front sending mechanism and welding nail welding mechanism, metal packaging can body conveying mechanism is arranged longitudinally, plastic handle production mechanism is arranged transversely, plastic handle front sending mechanism is at the intersection of metal packaging can body conveying mechanism and plastic handle production mechanism, welding nail welding mechanism is at the front of plastic handle front sending mechanism above metal packaging can body conveying mechanism, characterized in that plastic handle front sending mechanism includes plastic handle cutting mechanism, plastic handle front sending belt conveying mechanism and plastic handle bending mechanism arranged in sequence, plastic handle production mechanism includes plastic belt punching mechanism, welding nail mounting mechanism and plastic belt friction driver arranged in sequence.

Description

TECHNICAL FIELD

[0001] The present application relates to a metal packaging can manufacturing equipment, in particular to a full-automatic plastic handle manufacturing and installing machine for metal packaging can. BACKGROUND

[0002] The commonly used metal packaging can with handle is manufactured by a traditional handle structure of a metal handle made of a metal round strip material. In recent years, a plastic handle made of a flat section plastic strip has appeared. The prior application of the applicant, Chinese patent No. 201410180247.6, discloses a full-automatic high-speed manufacturing method and equipment for a plastic handle of a metal packaging can. The plastic handle structure is manufactured by a plastic strip with two ends punched with a welding pin hole, respectively. Then, a welding pin is inserted into each of the two welding pin holes, respectively. Then, the pointed foot of the welding pin is slightly bent outward. Then, the pointed foot of the welding pin is welded and fixed to the outer side wall of the metal packaging can. The manufacturing equipment includes a rack, a metal packaging can body conveying mechanism, a plastic handle manufacturing mechanism, a welding mechanism, a plastic handle clamping and bending mechanism, wherein the metal packaging can body conveying mechanism is arranged longitudinally, the plastic handle manufacturing mechanism is arranged transversely, the plastic handle manufacturing mechanism is composed of a feeding mechanism, a first station mechanism for punching a welding pin hole and a triangular notch, a second station mechanism for installing a welding pin, and a third station mechanism for cutting a plastic handle, the metal packaging can body conveying mechanism and the plastic handle manufacturing mechanism are connected at the third station mechanism of the plastic handle manufacturing mechanism, the welding mechanism and the plastic handle clamping and bending mechanism are arranged at the third station mechanism of the plastic handle manufacturing mechanism, and the second station mechanism for installing a welding pin is composed of a welding pin conveying mechanism, a welding pin pushing mechanism and a welding pin pointed foot bending mechanism. However, the manufacturing equipment of the above patent is not specific and perfect in structure, which affects the high efficiency production and wide application of the plastic handle. SUMMARY

[0003] In order to overcome the problem of the prior application of the applicant that the structure of the manufacturing equipment is not specific and perfect, which affects the high efficiency production and wide application of the plastic handle, the purpose of the present application is to provide an improved full-automatic plastic handle manufacturing and installing machine for metal packaging can, which can overcome the defects of the prior art.

[0004] The application adopts the technical scheme that a kind of metal packaging can plastic handle full-automatic production installation machine, including rack and metal packaging can body conveying mechanism, plastic handle production mechanism, plastic handle front sending mechanism and welding nail welding mechanism installed on rack, wherein metal packaging can body conveying mechanism is longitudinally arranged, plastic handle production mechanism is transversely arranged, plastic handle front sending mechanism is at the intersection of metal packaging can body conveying mechanism and plastic handle production mechanism, welding nail welding mechanism is at the front of plastic handle front sending mechanism above metal packaging can body conveying mechanism, characterized in that: plastic handle front sending mechanism includes plastic handle cutting mechanism, plastic handle front sending belt transmission mechanism and plastic handle bending mechanism arranged in sequence, plastic handle production mechanism includes plastic belt punching mechanism, welding nail installation mechanism and plastic belt friction driver arranged in sequence, plastic belt is punched out two parallel welding nail holes and triangular gap between two welding nail holes according to every set interval when passing through plastic belt punching mechanism by punching chute, every welding nail hole is installed and fixed with a welding nail when passing through welding nail installation mechanism by nail installation chute, is cut off into separated plastic handle by plastic handle cutting mechanism after entering the belt groove seat of plastic handle front sending belt transmission mechanism, is sent to front stop position by plastic handle front sending belt transmission mechanism, outer end of plastic handle is bent by plastic handle bending mechanism, welding nail is welded and fixed to metal packaging can by welding nail welding mechanism;Welding nail installation mechanism includes welding nail vibration hopper, nail installation chute, welding nail feeding double slide plate, welding nail supporting and lifting penetrating mechanism and nail foot bending mechanism, wherein the discharge port of welding nail feeding double slide plate is connected with the nail installation station of nail installation chute, welding nail supporting and lifting penetrating mechanism is below the nail installation station of nail installation chute, nail foot bending mechanism is above the nail installation station of nail installation chute, the discharge port of welding nail vibration hopper is connected with the feeding port of welding nail feeding double slide plate;Welding nail supporting and lifting penetrating mechanism is composed of two upward supporting nail rods, supporting nail rod driving cylinder and transmission member, two upward supporting nail rods are driven by supporting nail rod driving cylinder, lift two welding nails sent by welding nail feeding double slide plate, and make the nail foot of two welding nails penetrate through two parallel welding nail holes on plastic belt respectively;Nail foot bending mechanism is composed of two downward nail foot rods, nail foot rod driving cylinder and transmission member, two downward nail foot rods are driven by nail foot rod driving cylinder, and make the nail foot of two welding nails bent, so that two welding nails are installed and fixed on two welding nail holes.The plastic handle front sending belt conveying mechanism comprises two transmission synchronous belts, a pulley mechanism and a motor, wherein the pulley mechanism is installed on the frame, the motor is in driving cooperation with the pulley mechanism, the transmission synchronous belts are matched on the pulley mechanism, a plurality of belt groove seats are arranged on the belt surface of the transmission synchronous belts at a set interval, the plastic handle bending mechanism is located in front of the pulley mechanism, and the plastic handle front sending belt conveying mechanism is provided with a limiting groove of the plastic handle on the middle region of the two transmission synchronous belts.

[0005] The plastic belt punching mechanism can comprise a punching chute, a dynamic punching cutter plate, a static punching cutter plate and a dynamic punching cutter plate driving cylinder, wherein the dynamic punching cutter plate is above the punching position of the punching chute, the static punching cutter plate is below the punching position of the punching chute, and the dynamic punching cutter plate driving cylinder is in driving cooperation with the dynamic punching cutter plate.

[0006] Two welding pin hole punching cutters and two triangular notch punching cutters can be arranged on the dynamic punching cutter plate.

[0007] The plastic belt friction driver can be arranged behind the welding pin mounting mechanism, and the structure can comprise two friction wheels in pressure cooperation and a friction wheel driver.

[0008] The plastic handle front sending belt conveying mechanism is provided with the limiting groove of the plastic handle on the middle region of the two transmission synchronous belts, so that the plastic handle in the belt groove seat of one side transmission synchronous belt is guided into the belt groove seat of the other side transmission synchronous belt, and the plastic handle is prevented from drooping at the middle region of the two transmission synchronous belts.

[0009] The plastic handle cutting mechanism can be arranged between the plastic belt friction driver and the plastic handle front sending belt conveying mechanism, and the structure can comprise an up-and-down cutting knife and a cutting knife driving cylinder.

[0010] The welding pin welding mechanism can be arranged on the plastic handle mounting position in front of the plastic handle bending mechanism, and specifically can comprise a left welding device and a right welding device, so that two welding pins on the plastic handle after being bent by the plastic handle bending mechanism can be simultaneously welded and fixed on the left and right side walls of a metal packaging can.

[0011] The beneficial effects of the present application are: first, the functional structure of the plastic handle full-automatic manufacturing and installing machine for the metal packaging can is perfect, which can realize the continuous manufacturing and installing of the plastic handle of the metal packaging can at high speed and automatically, from inputting the plastic belt and the metal packaging can, cutting and punching according to the set interval, automatically conveying the welding nail and installing and fixing the welding nail on the plastic belt welding nail hole one by one, cutting the plastic handle on the plastic belt, feeding and bending the plastic handle, and welding and fixing the bent plastic handle on the metal packaging can, so that the plastic handle of the metal packaging can can be produced efficiently and widely applied; second, the plastic handle manufacturing mechanism includes a plastic belt punching and cutting mechanism, a welding nail installing mechanism and a plastic belt friction driver, the plastic belt is manufactured into a plastic handle under the pulling of the plastic belt friction driver, slides in the punching and cutting chute and the nail installing chute, the punching and cutting station and the nail installing station on the chute punch out two parallel welding nail holes and a triangular gap between the two welding nail holes according to the set interval, and then one welding nail is installed and fixed in each welding nail hole, so that high-speed, full-automatic and high-quality operation can be realized when a series of plastic handles are manufactured from one plastic belt; third, the plastic handle feeding mechanism includes a plastic handle cutting mechanism, a plastic handle feeding belt conveying mechanism and a plastic handle bending mechanism, that is, the plastic handle is cut into separated plastic handles by the plastic handle cutting mechanism after being sent into the belt groove seat of the plastic handle feeding belt conveying mechanism, then the plastic handle is fed to the front stop position by the plastic handle feeding belt conveying mechanism, and then the outer end of the plastic handle is bent by the plastic handle bending mechanism, so that the welding nail at the end of the plastic handle is at the welding station of the welding nail welding mechanism, that is, outside the metal packaging can at the welding station, so that a series of installation actions from cutting to welding to the metal packaging can can be realized at high speed, full-automatic and high quality.

[0012] The present application is further described below in combination with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective view of an embodiment of the present application.

[0014] Figure 2 is Figure 1 an enlarged view of the welding nail installing mechanism and the plastic belt punching and cutting mechanism of

[0015] Figure 3 is Figure 2 a sectional view of the welding nail installing mechanism of

[0016] Figure 4 is Figure 2 an enlarged view of the moving punching and cutting knife plate of the plastic belt punching and cutting mechanism.

[0017] Figure 5 is Figure 1 The plastic handle front feeding mechanism and the plastic belt friction driver are separated out.

[0018] In the figure: 1, frame; 2, metal packaging can body conveying mechanism; 3, plastic handle making mechanism; 4, plastic handle front feeding mechanism; 5, welding stud welding mechanism; 6, plastic handle cutting mechanism; 7, plastic handle front feeding belt conveying mechanism; 8, plastic belt punching mechanism; 9, welding stud installing mechanism; 10, plastic belt friction driver; 11, plastic belt; 12, punching chute; 13, stud installing chute; 14, belt groove seat; 15, metal packaging can body; 16, welding stud vibrating hopper; 17, welding stud feeding double slide plate; 18, welding stud supporting and lifting penetrating mechanism; 19, stud foot bending mechanism; 20, stud installing station; 21, stud supporting rod; 22, stud supporting rod driving cylinder; 23, transmission member; 24, foot pressing rod; 25, foot pressing rod driving cylinder; 26, transmission member; 27, moving punching cutter plate; 28, static punching cutter plate; 29, moving punching cutter plate driving cylinder; 30, welding stud hole punching cutter; 31, triangular notch punching cutter; 32, friction wheel; 33, friction wheel driver; 34, transmission synchronous belt; 35, belt wheel mechanism; 36, motor; 37, front side of belt wheel mechanism; 38, limiting groove; 39, cutter; 40, cutter driving cylinder. DETAILED DESCRIPTION

[0019] Referring to Figures 1-5The full-automatic plastic handle making and installing machine for metal packaging cans comprises a frame 1, a metal packaging can body conveying mechanism 2, a plastic handle making mechanism 3, a plastic handle front conveying mechanism 4 and a welding pin welding mechanism 5 installed on the frame 1, wherein the metal packaging can body conveying mechanism 2 is arranged longitudinally, the plastic handle making mechanism 3 is arranged transversely, the plastic handle front conveying mechanism 4 is located at the intersection of the metal packaging can body conveying mechanism 2 and the plastic handle making mechanism 3, and the welding pin welding mechanism 5 is located in front of the plastic handle front conveying mechanism 4 above the metal packaging can body conveying mechanism 2, characterized in that the plastic handle front conveying mechanism 4 comprises a plastic handle cutting mechanism 6, a plastic handle front conveying belt conveying mechanism 7 and a plastic handle bending mechanism (not shown) arranged in sequence, the plastic handle making mechanism 2 comprises a plastic belt punching mechanism 8, a welding pin installing mechanism 9 and a plastic belt friction driver 10 arranged in sequence, a plastic belt 11 is punched out every set interval by the plastic belt punching mechanism 8 into two parallel welding pin holes and a triangular gap between the two welding pin holes, every welding pin hole is installed with a welding pin by the welding pin installing mechanism 9, the plastic belt 11 is cut into separated plastic handles by the plastic handle cutting mechanism 6 after entering the belt groove seat 14 of the plastic handle front conveying belt conveying mechanism 7, the plastic handles are sent to the front stop position by the plastic handle front conveying belt conveying mechanism 7, the outer end of the plastic handle is bent by the plastic handle bending mechanism, and the welding pin is welded to the metal packaging can body 15 by the welding pin welding mechanism 5; the welding pin installing mechanism 9 comprises a welding pin vibrating hopper 16, a pin installing sliding groove 13, a welding pin feeding double sliding plate 17, a welding pin supporting and lifting penetrating mechanism 18 and a pin foot pressing and bending mechanism 19, wherein the pin installing work station 20 of the pin installing sliding groove 13 is connected to the discharge port of the welding pin feeding double sliding plate 17, the welding pin supporting and lifting penetrating mechanism 18 is located below the pin installing work station 20 of the pin installing sliding groove 13, the pin foot pressing and bending mechanism 19 is located above the pin installing work station 20 of the pin installing sliding groove 13, and the discharge port of the welding pin vibrating hopper 16 is connected to the feeding port of the welding pin feeding double sliding plate 17; the welding pin supporting and lifting penetrating mechanism 18 is composed of two upward supporting pin rods 21, a supporting pin rod driving air cylinder 22 and a transmission member 23; the pin foot pressing and bending mechanism 19 is composed of two downward pressing pin foot rods 24, a pin foot rod driving air cylinder 25 and a transmission member 26; the plastic handle front conveying belt conveying mechanism 7 comprises two transmission synchronous belts 34, a belt wheel mechanism 35 and a motor 36, the belt wheel mechanism 35 is installed on the frame 1, the motor 36 is drivingly matched with the belt wheel mechanism 35, the transmission synchronous belts 34 are matched on the belt wheel mechanism 35, a plurality of belt groove seats 14 are arranged on the belt surface of the transmission synchronous belts 34 at set intervals, and the plastic handle bending mechanism is located at the front side 37 of the belt wheel mechanism 35.

[0020] The plastic strip punching mechanism 8 comprises a punching chute 12, a dynamic punching die plate 27, a static punching die plate 28 and a dynamic punching die plate driving cylinder 29, wherein the dynamic punching die plate 27 is above the punching position of the punching chute 12, the static punching die plate 28 is below the punching position of the punching chute 12, and the dynamic punching die plate driving cylinder 29 is in driving cooperation with the dynamic punching die plate 27.

[0021] As shown in Figure 3 The dynamic punching die plate 27 is provided with two pin hole punching dies 30 and two triangular notch punching dies 31.

[0022] The plastic strip friction driver 10 is arranged behind the pin mounting mechanism 9, and is composed of two friction wheels 32 in pressure cooperation and a friction wheel driver 33.

[0023] The plastic handle front feeding belt conveying mechanism 7 is further provided with a limiting groove 38 of the plastic handle in the middle region of the two transmission synchronous belts 34, so that the plastic handle in the belt groove seat 14 of one side of the transmission synchronous belt is guided into the belt groove seat of the other side of the transmission synchronous belt, and the plastic handle is prevented from drooping in the middle region of the two transmission synchronous belts 34.

[0024] The plastic handle cutting mechanism 6 is arranged between the plastic strip friction driver 10 and the plastic handle front feeding belt conveying mechanism 7, and is composed of an up-and-down moving cutter 39 and a cutter driving cylinder 40.

[0025] The pin welding mechanism 5 is arranged at the plastic handle mounting position in front of the plastic handle bending mechanism, and is specifically composed of a left welding device and a right welding device, so that two pins on a plastic handle after being bent by the plastic handle bending mechanism can be simultaneously welded and fixed on the left and right side walls of a metal packaging can body.

[0026] When working, the metal packaging cans 15 are placed on the metal packaging can conveying mechanism 2 and conveyed forward one by one; the welding nails are poured into the welding nail vibrating hopper 16, and through the vibrating action of the welding nail vibrating hopper 16, the welding nails are spirally and orderly climbed along the wall of the welding nail vibrating hopper 16 and then arranged in two rows with the nail feet upward on the welding nail feeding double slide plates 17 and conveyed to the nail installing work station 20 of the nail installing chute 13; a plastic handle belt 11 enters from the punching chute 12 of the plastic handle making mechanism 2, passes through the punching chute 12 and then passes through the nail installing chute 13, is pulled by the plastic belt friction driver 10 and then slides forward in the punching chute 12 and the nail installing chute 13; when the plastic handle belt 11 passes through the punching chute 12, the moving punching cutter plate 27 of the plastic belt punching mechanism 8 is driven by the moving punching cutter plate driving cylinder 29 and cooperates with the static punching cutter plate 28 to punch two parallel welding nail holes and a triangular gap between the two welding nail holes on the plastic handle belt 11 at a set interval; then when the plastic handle belt 11 passes through the nail installing chute 13, the two upward supporting nail rods 21 on the welding nail supporting lifting nail installing mechanism 18 of the welding nail installing mechanism 9 are driven by the supporting nail rod driving cylinder 22 to support the two welding nails sent by the welding nail feeding double slide plates 17, the nail feet of the two welding nails pass through the two parallel welding nail holes on the plastic handle belt 11 respectively, then the two downward nail foot bending rods 24 on the nail foot bending mechanism 19 of the welding nail installing mechanism 9 are driven by the nail foot bending rod driving cylinder 25 to bend the nail feet of the two welding nails, so that the two welding nails are installed and fixed on the two welding nail holes; through continuous making, the plastic handle belt 11 is made with one plastic handle connected to another; when a plastic handle on the plastic handle belt 11 passes through one side belt groove seat 14 on the two driving synchronous belts 34 of the plastic handle forward conveying belt conveying mechanism 7 and then passes through the limiting groove 38 to enter the other side belt groove seat 14, the cutter 39 on the plastic handle cutting mechanism 6 is driven by the cutter driving cylinder 40 to cut the plastic handle on the two belt groove seats 14 on the two driving synchronous belts 34 and separate from the plastic handle belt 11; then the motor 36 drives the two driving synchronous belts 34 to move through the belt wheel mechanism 35, so that the plastic handle on the two belt groove seats 14 is conveyed forward to the front side 37 of the belt wheel mechanism, at this time, the plastic handle is turned by 90 degrees and the nail feet of the welding nails on the plastic handle face forward; then the plastic handle bending mechanism bends the two ends of the plastic handle inward, at this time, the welding nails on the plastic handle are in the welding position of the welding nail welding mechanism 5, and the metal packaging can conveying mechanism 2 has one metal packaging can 15 at the welding position, so the welding nail welding mechanism 5 welds and fixes the nail feet of the welding nails on the plastic handle on the left and right side walls of the metal packaging can respectively;The cycle is repeated in sequence.

Claims

1. A full-automatic making and installing machine for plastic handle of metal packaging can, comprising a frame and a metal packaging can body conveying mechanism, a plastic handle making mechanism, a plastic handle forward conveying mechanism and a welding stud welding mechanism installed on the frame, wherein the metal packaging can body conveying mechanism is arranged longitudinally, the plastic handle making mechanism is arranged transversely, the plastic handle forward conveying mechanism is located at the intersection of the metal packaging can body conveying mechanism and the plastic handle making mechanism, and the welding stud welding mechanism is located at the front of the plastic handle forward conveying mechanism above the metal packaging can body conveying mechanism, characterized in that: The plastic handle front feeding mechanism comprises a plastic handle cutting mechanism, a plastic handle front feeding belt conveying mechanism and a plastic handle bending mechanism arranged in sequence, the plastic handle manufacturing mechanism comprises a plastic belt punching mechanism, a welding nail mounting mechanism and a plastic belt friction driver arranged in sequence, the plastic belt is punched out two parallel welding nail holes and a triangular gap between the two welding nail holes at every set interval when passing through the plastic belt punching mechanism through a punching sliding groove, a welding nail is mounted and fixed on each of the two welding nail holes when passing through the welding nail mounting mechanism through a nail mounting sliding groove, and the plastic handle is cut into separated plastic handles by the plastic handle cutting mechanism after entering a belt groove seat of the plastic handle front feeding belt conveying mechanism, the plastic handle is fed to a front stop position by the plastic handle front feeding belt conveying mechanism, the outer end of the plastic handle is bent by the plastic handle bending mechanism, and the welding nail is welded and fixed on the metal packaging can by the welding nail welding mechanism; the welding nail mounting mechanism comprises a welding nail vibrating hopper, a nail mounting sliding groove, a welding nail feeding double sliding plate, a welding nail supporting and lifting penetrating mechanism and a nail foot pressing and bending mechanism, wherein the nail mounting position of the nail mounting sliding groove is connected with the discharging port of the welding nail feeding double sliding plate, the welding nail supporting and lifting penetrating mechanism is below the nail mounting position of the nail mounting sliding groove, the nail foot pressing and bending mechanism is above the nail mounting position of the nail mounting sliding groove, and the discharging port of the welding nail vibrating hopper is connected with the feeding port of the welding nail feeding double sliding plate; the welding nail supporting and lifting penetrating mechanism is composed of two upward supporting nail rods, a supporting nail rod driving cylinder and a transmission member, the two upward supporting nail rods lift the two welding nails sent out by the welding nail feeding double sliding plate under the driving of the supporting nail rod driving cylinder, and the nail feet of the two welding nails penetrate the two parallel welding nail holes on the plastic belt respectively; the nail foot pressing and bending mechanism is composed of two downward nail foot pressing rods, a nail foot pressing rod driving cylinder and a transmission member, the two downward nail foot pressing rods press and bend the nail feet of the two welding nails under the driving of the nail foot pressing rod driving cylinder, so that the two welding nails are mounted and fixed on the two welding nail holes; the plastic handle front feeding belt conveying mechanism comprises two transmission synchronous belts, a belt wheel mechanism and a motor, wherein the belt wheel mechanism is mounted on the rack, the motor is drivingly matched with the belt wheel mechanism, the transmission synchronous belts are matched on the belt wheel mechanism, a plurality of belt groove seats are arranged on the belt surface of the transmission synchronous belts at every set interval, the plastic handle bending mechanism is arranged in front of the belt wheel mechanism, and the plastic handle front feeding belt conveying mechanism is provided with a limiting groove of the plastic handle on the middle region of the two transmission synchronous belts, so that one plastic handle passes through one side of the belt groove seat on the two transmission synchronous belts, and then passes through the limiting groove to enter the other side of the belt groove seat. ​ 2. The full-automatic making and installing machine for plastic handle of metal packaging can according to claim 1, characterized in that The plastic belt punching mechanism comprises a punching sliding groove, a dynamic punching cutter plate, a static punching cutter plate and a dynamic punching cutter plate driving cylinder, wherein the dynamic punching cutter plate is above the punching position of the punching sliding groove, the static punching cutter plate is below the punching position of the punching sliding groove, and the dynamic punching cutter plate driving cylinder is drivingly matched with the dynamic punching cutter plate.

3. The full-automatic making and installing machine for plastic handle of metal packaging can according to claim 2, characterized in that Two welding pin hole punches and two triangular gap punches are arranged on the dynamic punching die plate.

4. The full-automatic plastic handle making and mounting machine for metal packaging cans according to any one of claims 1, 2 or 3, characterized in that The plastic strip friction driver is arranged behind the welding pin mounting mechanism and consists of two friction wheels and a friction wheel driver.

5. The full-automatic plastic handle making and mounting machine for metal packaging cans according to any one of claims 1, 2 or 3, characterized in that The plastic handle cutting mechanism is arranged between the plastic strip friction driver and the plastic handle front feeding belt conveyor and consists of an up-and-down cutting knife and a cutting knife driving cylinder.

6. The full-automatic plastic handle making and mounting machine for metal packaging cans according to any one of claims 1, 2 or 3, characterized in that The welding pin welding mechanism is arranged in the plastic handle mounting position in front of the plastic handle bending mechanism and consists of a left welding device and a right welding device.

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