CN213227628U

CN213227628U - Cutting and welding device for nose bridge strip of mask

Info

Publication number: CN213227628U
Application number: CN202020713141.9U
Authority: CN
Inventors: 陶为银
Original assignee: Suzhou Drfu Automation Technology Co ltd
Current assignee: Suzhou Drfu Automation Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-05-18
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a gauze mask bridge of the nose strip cuts off welding set, including the cutting turn-ups mechanism that is used for cutting off the bridge of the nose strip and carries out the turn-ups to the gauze mask that connects gradually and the ultrasonic welding cutting off mechanism that welds the bridge of the nose strip in the gauze mask and carries out the cutting-off operation to the gauze mask, cutting off the turn-ups mechanism and including the mounting panel, be provided with the bottom plate on the mounting panel, bottom plate upper portion is provided with the gauze mask deflector, cut off the turn-ups mechanism and include the bottom plate, the bottom plate tail end is provided with the crimping mechanism that drives gauze mask both sides stick up and just to; the mechanism guarantees that the two sides of the mask are stably folded through the arrangement of the folding mechanism, and meanwhile the arrangement of the guiding and conveying mechanism enables the bridge of the nose strip to be cut off to accurately enter the folding edge.

Description

Cutting and welding device for nose bridge strip of mask

Technical Field

The utility model relates to a gauze mask production field, in particular to gauze mask bridge of the nose strip cuts off welding set.

Background

The mask is a sanitary article, is generally worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to achieve the purpose of preventing harmful gas, smell or spray from entering and exiting the mouth and nose of a wearer, is made of materials such as gauze or paper, has a certain filtering effect on the air entering the lung, and has a very good effect when the mask is worn during operation in an environment polluted by respiratory infectious diseases or dust and the like. Along with the development of science and technology, the mechanical level is improved, the level of gauze mask production is higher and higher, and the gauze mask production flow is more and more simplified, and gauze mask production system comes to the end.

In the gauze mask actually carries out the production process, need through the plastic, cut off bridge of the nose strip, gauze mask turn-ups, gauze mask edge weld, weld ear area line, roll over steps such as ear area, when cutting off bridge of the nose strip and ear area turn-ups operation at present, can appear that the both sides turn-ups can't turn over and target in place to cause inside the unable accurate turn-ups that gets into of bridge of the nose strip, thereby influence follow-up gauze mask edge weld go on, thereby cause the influence to the yield of gauze mask production.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a guarantee gauze mask bridge of nose strip cutting and welding device of turn-ups operation yields.

The utility model provides a technical scheme that its technical problem adopted is: gauze mask bridge of the nose strip cuts off welding set, including what connect gradually be used for to bridge of the nose strip cut off and carry out turn-ups to the gauze mask cut off turn-ups mechanism and with bridge of the nose strip welding in the gauze mask and carry out the ultrasonic bonding shutdown mechanism of cutting off the operation to the gauze mask, its characterized in that: the cutting and flanging mechanism comprises a mounting plate, a bottom plate is arranged on the mounting plate, a mask guide plate is arranged at the upper part of the bottom plate, a gap for the mask to pass through is formed between the bottom plate and the mask guide plate, erection plates for driving two sides of the mask to erect are arranged at two sides of the bottom plate, and a folding mechanism for driving two sides of the mask to erect and fold is arranged at the tail end of the bottom plate;

a nose bridge conveying plate is further arranged above the mask guide plate, a nose bridge conveying mechanism for driving the nose bridge to move on the nose bridge conveying plate and a nose bridge cutting mechanism for cutting the nose bridge are sequentially arranged on the mounting plate along the movement direction of the nose bridge, and a guide conveying mechanism for driving the nose bridge to move to the inside of the mask flanging is arranged at the tail end of the nose bridge conveying plate;

ultrasonic bonding shutdown mechanism cuts off the frame including the welding, the welding cuts off and has set gradually ultrasonic bonding roller and a plurality of gauze mask cloth transmission roller on the frame, ultrasonic bonding roller bottom is provided with the ultrasonic bonding generator, ultrasonic bonding roller surface is provided with and is used for welded welding arch, be provided with the recess that is used for holding the blank sword on one of them gauze mask cloth transmission roller, be provided with the blank sword that is used for cutting fracture gauze mask in the recess.

Further, the method comprises the following steps: the nose bridge conveying mechanism and the nose bridge cutting mechanism are sequentially arranged in the cavities, and limit bolts penetrating through the top of the driving installation frame are arranged at the upper ends of the nose bridge conveying mechanism and the nose bridge cutting mechanism.

Further, the method comprises the following steps: the nose bridge piece conveying mechanism comprises a conveying mounting frame, conveying rollers are arranged on the conveying mounting frame, and supporting rollers matched with the driving rollers are arranged below the conveying rollers;

the nose bridge strip cutting mechanism comprises a cutting roller, a groove for placing a cutting knife is formed in the cutting roller, the cutting knife is arranged in the groove, one end of the cutting knife extends out of the edge of the cutting roller, and the nose bridge strip cutting mechanism further comprises a roller driving mechanism for driving the conveying roller and the cutting roller to rotate;

further, the method comprises the following steps: the roller driving mechanism comprises a first driving rod for driving the cutting roller to rotate, a second driving rod for driving the conveying roller to rotate, a first driving wheel arranged on the first driving rod, a second driving wheel arranged on the second driving rod, a driving wheel meshed with the first driving wheel and the second driving wheel simultaneously arranged between the first driving wheel and the second driving wheel, and a motor for driving the first driving wheel to rotate;

further, the method comprises the following steps: the guide conveying mechanism comprises a conveying bottom plate and a conveying panel, a nose bridge strip conveying pipeline is arranged between the conveying bottom plate and the conveying panel, an opening at one end, close to a nose bridge strip cutting mechanism, of the nose bridge strip conveying pipeline is larger than the other end of the nose bridge strip conveying pipeline, the nose bridge strip conveying pipeline is obliquely arranged, and one end, close to the nose bridge strip cutting mechanism, of the nose bridge strip conveying pipeline is higher than the other end of the nose bridge strip conveying pipeline.

Further, the method comprises the following steps: the folding mechanism comprises a left folding mechanism and a right folding mechanism, the left folding mechanism comprises a left pressing plate, one side, close to the left pressing plate, of the conveying panel is provided with a first arc-shaped surface, one side, close to the conveying panel, of the left pressing plate is provided with a second arc-shaped surface matched with the first arc-shaped surface, one side, far away from the nose bridge cutting mechanism, of the guide conveying mechanism is provided with a first vertical plate and a first transverse plate which are connected with each other, the first vertical plate and the first transverse plate are vertically arranged, the right folding mechanism is of a bending structure and comprises a second vertical plate and a second transverse plate which are connected with each other, and one side, far away from the tail end of the bottom plate, of the second transverse;

and one sides of the left pressing and folding mechanism, the right pressing and folding mechanism and the guide conveying mechanism are all provided with fixing plates fixedly connected with the base plate, and the fixing plates are provided with kidney-shaped grooves used for adjusting positions.

Further, the method comprises the following steps: the welding cuts off a frame afterbody and is provided with first belt line, be provided with the first compression roller that prevents the gauze mask departure on the first belt line, still including setting up the electrostatic generator who cuts off a frame afterbody at the welding.

The utility model has the advantages that:

1. the arrangement of the folding mechanism ensures that the two sides of the mask are stably folded, so that the reject ratio is reduced;

2. the arrangement of the guide conveying mechanism enables the cut nose bridge strip to accurately enter the inner side of the flanging edge;

3. the positions of the guiding and conveying mechanism and the pressing and folding mechanism are adjustable, so that the mask pressing and folding mechanism can be suitable for masks with different specifications;

4. the nose bridge strip cutting mechanism and the nose bridge strip conveying mechanism are driven by the same driving mechanism, and consistency of the nose bridge strip cutting mechanism and the nose bridge strip conveying mechanism is guaranteed.

5. The nose bridge strip cutting mechanism is in rotary cutting, so that the length of each section of the nose bridge strip is the circumference of the cutting roller, and the consistency of the nose bridge strip is guaranteed.

Drawings

Fig. 1 is a schematic view of a mask nose bridge strip cutting and welding device.

Fig. 2 is an overall schematic view of the cutting and flanging mechanism.

Fig. 3 is an overall rear view of the cut-off turn-up mechanism.

Fig. 4 is a schematic view of the internal structure of the cutting and flanging mechanism.

Fig. 5 is a schematic view of a guide conveying mechanism in the cutting and flanging mechanism.

Fig. 6 is a schematic diagram of a left folding mechanism in the cutting and flanging mechanism.

Fig. 7 is a schematic diagram of a right folding mechanism in the cutting and flanging mechanism.

FIG. 8 is a schematic view of an ultrasonic welding cutting mechanism.

Labeled as:

the cutting and flanging mechanism 3, the mounting plate 31, the bottom plate 32, the mask guide plate 33, the erection plate 34, the nose bridge conveying plate 35, the nose bridge conveying mechanism 36, the driving mounting frame 361, the limit bolt 362, the conveying mounting frame 363, the conveying roller 364, the supporting roller 365, the second driving wheel 366, the nose bridge cutting mechanism 37, the cutting roller 371, the cutting knife 372, the first driving wheel 373, the driving wheel 374, the motor 375, the left folding mechanism 381, the first vertical plate 3811, the first transverse plate 3812, the left pressing plate 3813, the right folding mechanism 382, the second vertical plate 3821, the second transverse plate 3822, the fixing plate 39, the waist-shaped groove 391, the guiding and conveying mechanism 310, the conveying panel 3101 and the conveying bottom plate 3102;

an ultrasonic welding cutting mechanism 4, an ultrasonic welding roller 41, a mask cloth transmission roller 42, a cutting knife 43 and an electrostatic generator 44;

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as limited to those embodiments set forth herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The mask nose bridge strip cutting and welding device shown in fig. 1 to 8 comprises a cutting and flanging mechanism 3 for cutting the nose bridge strip and flanging the mask cloth and an ultrasonic welding and cutting mechanism 4 for welding the nose bridge strip in the mask cloth and cutting the mask cloth, which are connected in sequence, wherein the cutting and flanging mechanism 3 comprises a mounting plate 31, a bottom plate 32 is arranged on the mounting plate 31, a mask guide plate 33 is arranged at the upper part of the bottom plate 32, a gap for the mask to pass through is arranged between the bottom plate 32 and the mask guide plate 33, erection plates 34 for driving two sides of the mask to erect are arranged at two sides of the bottom plate 32, and a pressing and folding mechanism for driving two sides of the mask to erect and press and fold is arranged at the tail end of the bottom plate 32;

a nose bridge conveying plate 35 is further arranged above the mask guide plate 33, a nose bridge conveying mechanism 36 for driving the nose bridge to move on the nose bridge conveying plate 35 and a nose bridge cutting mechanism 37 for cutting the nose bridge are sequentially arranged on the mounting plate 31 along the movement direction of the nose bridge, and a guide conveying mechanism 310 for driving the nose bridge to move to the inside of the mask flanging is arranged at the tail end of the nose bridge conveying plate 35;

the ultrasonic welding cutting mechanism 4 comprises a welding cutting frame, an ultrasonic welding roller 41 and a plurality of mask cloth transmission rollers 42 are sequentially arranged on the welding cutting frame, an ultrasonic welding generator is arranged at the bottom of the ultrasonic welding roller 41, welding protrusions for welding are arranged on the surface of the ultrasonic welding roller 41, a groove for accommodating a cutting knife 43 is formed in one of the mask cloth transmission rollers 42, and the cutting knife 43 for cutting mask cloth is arranged in the groove;

when the mask is in operation, the nose bridge strip and the mask move forwards simultaneously, the mask passes through a gap between the bottom plate 32 and the mask guide plate 33 to move forwards under the drive of a previous station, so that the flatness of the mask in movement is guaranteed, when the planar mask moves forwards, under the action of the erection plate 34, the edges of two sides of the mask are turned upwards, then the mask is moved to the folding mechanism to fold the erection parts of two sides of the mask inwards, when the mask is transported, the nose bridge strip moves forwards under the drive of the nose bridge strip conveying mechanism 36, when the nose bridge strip cutting mechanism 37 is moved, the nose bridge strip cutting mechanism 37 performs cutting operation, the cut nose bridge strip accurately enters the inner side of the folding edge of the mask under the action of the guide conveying mechanism 310, the subsequent mask edge welding process is guaranteed, then the mask with the edge sent into the nose bridge strip sequentially passes through the ultrasonic welding roller 41 and the plurality of mask cloth conveying rollers 42, when passing through the ultrasonic welding roller 41, the mask cloth is welded under the action of the ultrasonic generator, multiple layers of mask cloth are welded together, the nose bridge strip is welded in the mask cloth, and when passing through the material cutting knife 43, the mask cloth transmission roller 42 rolls for one circle, and the mask cloth is cut down to realize the single cutting of the mask.

As shown in fig. 3, the nose bridge cutting device further includes a driving mounting frame 361, a plurality of cavities are provided in the driving mounting frame 361, the nose bridge strip conveying mechanism 36 and the nose bridge strip cutting mechanism 37 are sequentially disposed in the cavities, the upper ends of the nose bridge strip conveying mechanism 36 and the nose bridge strip cutting mechanism 37 are provided with a limiting bolt 362 penetrating through the top of the driving mounting frame 361, and the limiting bolt 362 is provided to adjust the positions of the nose bridge strip conveying mechanism 36 and the nose bridge strip cutting mechanism 37.

On the basis, the nose bridge conveying mechanism 36 includes a conveying mounting rack 363, a conveying roller 364 is arranged on the conveying mounting rack 363, a supporting roller 365 matched with a driving roller is arranged below the conveying roller 364, and during specific conveying, the nose bridge is driven by the rolling of the conveying roller 364 to be conveyed forwards;

on the basis, as shown in fig. 2, the nose bridge strip cutting mechanism 337 includes a cutting roller 371, a groove for placing a cutting knife 372 is formed in the cutting roller 371, the cutting knife 372 is disposed in the groove, one end of the cutting knife 372 extends out of the edge of the cutting roller 371, and the nose bridge strip cutting mechanism further includes a roller driving mechanism for driving the conveying roller 364 and the cutting roller 371 to rotate, when the nose bridge strip is specifically cut off, the surface of the cutting roller 371 contacts with the nose bridge strip, and after the nose bridge strip is rotated for a circle, the cutting knife 372 contacts with the nose bridge strip to cut off the nose bridge strip.

On the basis, as shown in fig. 2 to 4, the roller driving mechanism includes a first driving rod for driving the cutting roller 371 to rotate, a second driving rod for driving the conveying roller 364 to rotate, a first driving wheel 373 is mounted on the first driving rod, a second driving wheel 366 is mounted on the second driving rod, a transmission wheel 74 meshed with the first driving wheel 373 and the second driving wheel 66 is arranged between the first driving wheel 373 and the second driving wheel 366, and a motor 375 for driving the first driving wheel 73 to rotate is further included, when driving, the motor 375 drives the first driving wheel 373 to rotate, the first driving wheel 373 drives the transmission wheel 374 to rotate, and the transmission wheel drives the second driving wheel 366 to rotate, so that the first driving wheel 373 and the second driving wheel 366 rotate synchronously and are driven by one driving force, and when the driving force is reduced, consistency is also ensured;

on the basis, as shown in fig. 5, the guiding and transporting mechanism 310 comprises a conveying bottom plate and a conveying panel, a nose bridge strip conveying pipeline is arranged between the conveying bottom plate 3102 and the conveying panel 3101, one end opening of the nose bridge strip conveying pipeline close to the nose bridge strip cutting mechanism 37 is larger than the other end, the nose bridge strip conveying pipeline is obliquely arranged, one end of the nose bridge strip conveying pipeline close to the nose bridge strip cutting mechanism 37 is higher than the other end, the arrangement of the large opening at one end of the structure ensures that the nose bridge strip can accurately enter the conveying pipeline, the arrangement of the small opening at one end enables the cut nose bridge strip to accurately enter the mouth mask flanging edge, and meanwhile, the oblique arrangement of the structure realizes unpowered transmission, and the nose bridge strip automatically slides into the mouth mask flanging edge through the inclined plane structure to be inboard.

Specifically, as shown in fig. 6 and 7, the folding mechanism includes a left folding mechanism 381 and a right folding mechanism 382, the left folding mechanism 381 includes a left pressing plate 3813, a first arc-shaped surface is disposed on a side of the conveying panel close to the left pressing plate 3813, a second arc-shaped surface matched with the first arc-shaped surface is disposed on a side of the left pressing plate close to the conveying panel, a first vertical plate 3811 and a first transverse plate 3812 connected to each other are disposed on a side of the guiding and transporting mechanism away from the nose bridge cutting mechanism 37, the first vertical plate and the first transverse plate are vertically disposed, the right folding mechanism 382 is a bending structure and includes a second vertical plate 3821 and a second transverse plate 3822 connected to each other, a side of the second transverse plate 3822 away from the tail end of the bottom plate 32 is bent upward in an inclined manner, and a fixing plate 39 for fixedly connecting with the bottom plate 32 is disposed on each of the left bending mechanism, the right bending mechanism and the guiding and transporting mechanism, be provided with the kidney slot 391 that is used for the adjusting position on the fixed plate 39, the gauze mask is getting into the edge formula of turning over, turn over through the little radian of first arcwall face and second arcwall face earlier, make the bridge of the nose strip can accurately get into in the turn over face, the turn-over of rethread first diaphragm presses, accomplish whole operation, and simultaneously, the right side is because tail end one side is upwards buckled to one side slant for the gauze mask edge gets into smoothly earlier and presses the operation in the mechanism 382 of turning over again, the yields of turning over the pressure has been guaranteed on the one hand to this kind of structure, also makes things convenient for the entering of bridge of the nose strip simultaneously, the setting of kidney slot 391 can conveniently carry out position adjustment to left bending mechanism, right bending mechanism and direction transport mechanism 310, thereby makes this mechanism can adapt to.

Specifically, as shown in fig. 8, the welding cut-off frame tail portion is provided with a first belt line, the first belt line is provided with a first compression roller for preventing the mask from flying, the welding cut-off frame tail portion further comprises an electrostatic generator 44, and the mask can be guaranteed to smoothly enter a next station through the arrangement.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Gauze mask bridge of the nose strip cuts off welding set, including what connect gradually be used for to bridge of the nose strip cut off and carry out turn-ups cut off turn-ups mechanism (3) and with bridge of the nose strip welding in the mask cloth and carry out the ultrasonic bonding shutdown operation to the mask cloth (4), its characterized in that: the cutting and flanging mechanism (3) comprises an installation plate (31), a bottom plate (32) is arranged on the installation plate (31), a mask guide plate (33) is arranged at the upper part of the bottom plate (32), a gap for a mask to pass through is formed between the bottom plate (32) and the mask guide plate (33), erection plates (34) for driving the two sides of the mask to erect are arranged on the two sides of the bottom plate (32), and a folding mechanism for driving the two sides of the mask to erect and fold is arranged at the tail end of the bottom plate (32);

a nose bridge conveying plate (35) is further arranged above the mask guide plate (33), a nose bridge conveying mechanism (36) for driving the nose bridge to move on the nose bridge conveying plate (35) and a nose bridge cutting mechanism (37) for cutting the nose bridge are sequentially arranged on the mounting plate (31) along the movement direction of the nose bridge, and a guide conveying mechanism (310) for driving the nose bridge to move to the inside of the mask flanging is arranged at the tail end of the nose bridge conveying plate (35);

ultrasonic bonding shutdown mechanism (4) cut off the frame including the welding, the welding cuts off and has set gradually ultrasonic bonding roller (41) and a plurality of gauze mask transmission roller (42) on the frame, ultrasonic bonding roller (41) bottom is provided with the ultrasonic bonding generator, ultrasonic bonding roller (41) surface is provided with and is used for welded welding arch, is provided with the recess that is used for holding blank sword (43) on one of them gauze mask transmission roller (42), be provided with blank sword (43) that are used for cutting gauze mask in the recess.

2. The mask nose bridge cutting and welding device according to claim 1, further comprising a driving mounting frame (361), wherein a plurality of cavities are formed in the driving mounting frame (361), the nose bridge conveying mechanism (36) and the nose bridge cutting mechanism (37) are sequentially arranged in the cavities, and the upper ends of the nose bridge conveying mechanism (36) and the nose bridge cutting mechanism (37) are provided with limiting bolts (362) penetrating through the tops of the driving mounting frame (361).

3. The mask nose bridge cutting and welding device according to claim 2, wherein the nose bridge conveying mechanism (36) comprises a conveying mounting rack (363), a conveying roller (364) is arranged on the conveying mounting rack (363), and a supporting roller (365) matched with a driving roller is arranged below the conveying roller (364);

the nose bridge strip cutting mechanism (37) comprises a cutting roller (371), a groove for placing a cutting knife (372) is formed in the cutting roller (371), the cutting knife (372) is arranged in the groove, and one end of the cutting knife (372) extends out of the edge of the cutting roller (371);

and the roller driving mechanism is used for driving the conveying roller (364) and the cutting roller (371) to rotate.

4. The mask nose bridge strip cutting and welding device according to claim 3, wherein the roller driving mechanism comprises a first driving rod for driving the cutting roller (371) to rotate and a second driving rod for driving the conveying roller (364) to rotate, a first driving wheel (373) is mounted on the first driving rod, a second driving wheel (366) is mounted on the second driving rod, a transmission wheel (374) meshed with the first driving wheel (373) and the second driving wheel (366) simultaneously is arranged between the first driving wheel (373) and the second driving wheel (366), and the device further comprises a motor (375) for driving the first driving wheel (373) to rotate.

5. The mask nose bridge cutting and welding device according to claim 1, wherein the guiding and transporting mechanism (310) comprises a transporting base plate and a transporting panel, a nose bridge conveying pipeline is arranged between the transporting base plate (3102) and the transporting panel (3101), an opening of one end of the nose bridge conveying pipeline close to the nose bridge cutting mechanism (37) is larger than that of the other end, the nose bridge conveying pipeline is obliquely arranged, and one end of the nose bridge conveying pipeline close to the nose bridge cutting mechanism (37) is higher than that of the other end.

6. The mask nose bridge strip cutting and welding device according to claim 5, wherein said folding mechanism comprises a left folding mechanism (381) and a right folding mechanism (382);

the left folding mechanism (381) comprises a left pressing plate (3813), a first arc-shaped surface is arranged on one side, close to the left pressing plate (3813), of the conveying panel, a second arc-shaped surface matched with the first arc-shaped surface is arranged on one side, close to the conveying panel, of the left pressing plate, a first vertical plate (3811) and a first transverse plate (3812) which are connected with each other are arranged on one side, far away from the nose bridge cutting mechanism (37), of the guide conveying mechanism, and the first vertical plate and the first transverse plate are vertically arranged;

the right folding mechanism (382) is of a folding structure and comprises a second vertical plate (3821) and a second transverse plate (3822) which are connected with each other, and one side, far away from the tail end of the bottom plate (32), of the second transverse plate (3822) is bent upwards in an inclined mode.

7. The mask nose bridge cutting and welding device according to claim 6, wherein a fixing plate (39) fixedly connected with the bottom plate (32) is arranged on one side of the left folding mechanism (381), the right folding mechanism (382) and the guiding and transporting mechanism (310), and a kidney-shaped groove (391) for adjusting the position is arranged on the fixing plate (39).

8. The mask nose bridge strip cutting and welding device according to claim 1, wherein: the welding cuts off a frame afterbody and is provided with first belt line, be provided with the first compression roller that prevents the gauze mask departure on the first belt line, still including setting up at welding the electrostatic generator (44) that cuts off a frame afterbody.