CN217318202U - Sheet trimming mechanism and flexible pipe forming equipment - Google Patents

Abstract

The utility model discloses a sheet deburring mechanism and hose material former, hose material former includes sheet deburring mechanism, sheet deburring mechanism includes main part seat and deburring subassembly, the main part seat has the pay-off face that supplies the sheet to carry the process, the deburring subassembly sets up in the main part seat, the deburring subassembly includes two deburring swoves, two deburring sword interval distribution, the relative pay-off face slope of deburring sword set up and with be formed with the contained angle an of acute angle between the pay-off face to make the deburring sword can cut out the scarf for sheet surface plane slope at the lateral part of sheet. The utility model discloses can cut out the scarf for sheet surface plane slope respectively in the both sides portion of sheet, when sheet welding, with the curved book of sheet both sides, can stack the scarf department of sheet both sides and weld for tubular product all can smooth transition in the interior lateral surface of welding department, realizes better tubular product welding effect.

Description

Sheet trimming mechanism and hose forming equipment

Technical Field

The utility model relates to a production facility technical field, in particular to sheet deburring mechanism and hose forming equipment.

Background

Prior to processing the sheet material into a tube material, the prior hose forming apparatus typically trims the sheet material to cut the sheet material to a desired width. The existing trimming mechanism generally adopts a trimming and cutting mode for a sheet material, namely, the trimming and cutting mode is parallel and level cutting perpendicular to the surface plane of the sheet material, when the sheet material is processed into a pipe material, two sides of the sheet material are bent and rolled, and trimming parts are overlapped and welded to obtain the pipe material shown in figure 1, and the step structure 4 shown in figure 1 is generated on the inner side and the outer side of the pipe of the welding part of the prepared pipe material, so that the inner side and the outer side surfaces of the pipe material at the welding part can not be in smooth transition, and the attractiveness of the prepared pipe material is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a sheet deburring mechanism sets up and with the pay-off face between be formed with the contained angle an of acute angle through making the relative pay-off face slope of deburring sword to make the deburring sword can cut out the scarf for sheet surface plane slope at the lateral part of sheet, when follow-up sheet welding, can stack the scarf department of sheet both sides and weld, make tubular product in the interior lateral surface homoenergetic smooth transition of welding department, realize better tubular product welding effect, improve the aesthetic property of the tubular product that makes.

The utility model discloses still provide a hose former with this sheet deburring mechanism.

According to the utility model discloses a sheet deburring mechanism, it includes main part seat and deburring subassembly, the main part seat has the pay-off face that supplies the sheet to carry to pass through, the deburring subassembly set up in the main part seat, the deburring subassembly includes two deburring swoves, two deburring sword interval distribution, the deburring sword is relative pay-off face slope set up and with be formed with the contained angle a of acute angle between the pay-off face, so that the scarf that can cut out for the slope of sheet surface plane at the lateral part of sheet by the deburring sword.

According to the utility model discloses sheet deburring mechanism, it has following beneficial effect at least: when the pipe welding machine is used, a sheet is conveyed to pass through the feeding surface of the main body seat, the two trimming knives are distributed at intervals, the two side parts of the sheet are cut by the two trimming knives, the trimming knives are obliquely arranged relative to the feeding surface and form an acute included angle a with the feeding surface, so that the trimming knives can cut oblique notches which are oblique relative to the surface plane of the sheet on the side parts of the sheet, when the subsequent sheet is welded, the two sides of the sheet are bent, the oblique notches on the two sides of the sheet can be overlapped for welding, the inner side surface and the outer side surface of the welded part of the pipe can be in smooth transition, the good pipe welding effect is realized, and the attractiveness of the manufactured pipe is improved.

According to some embodiments of the invention, the distance of separation between two of the trimming knives is adjustable.

According to the utility model discloses a some embodiments, the deburring subassembly still includes two deburring blade holders, two the deburring sword is with two the deburring blade holder is the one-to-one respectively and connects, the deburring blade holder portable set up in on the main part seat, the rotation is connected with the threaded rod on the main part seat, the threaded rod is worn to establish the deburring blade holder and with deburring blade holder screw-thread fit.

According to some embodiments of the utility model, the threaded rod is equipped with one and wears to establish two the deburring blade holder, the threaded rod has first screw thread section and second screw thread section, two one of them in the deburring blade holder connect in first screw thread section, another correspond connect in the second screw thread section, the screw thread of first screw thread section revolve to with the screw thread of second screw thread section revolves to opposite.

According to the utility model discloses a some embodiments, two at least one in the deburring blade holder is connected with the scale, the scale is followed two relative movement direction between the deburring blade holder extends and is used for measuring two distance between the deburring blade holder.

According to some embodiments of the utility model, be equipped with the pay-off passageway that supplies the sheet to wear to establish through on the main part seat, two the deburring sword all is located the exit of pay-off passageway.

According to the utility model discloses a some embodiments, the pay-off face for set up in a side of pay-off passageway, the main part seat is connected with the locating part, the locating part is located pay-off passageway department and can support the sheet press in the pay-off face.

According to some embodiments of the present invention, the limiting member is rotatably connected to the main body seat, the limiting member is connected to the elastic member, and the limiting member can have a tendency toward the sheet rotation and can abut against the sheet under the action of the elastic member.

According to the utility model discloses a some embodiments, the deburring subassembly still includes the clout pipe, the clout pipe be equipped with two and respectively with two the deburring sword one-to-one, the clout pipe is the tubular structure, the clout union coupling has the fan, the fan can be right the clout pipe is bloied or convulsions, with can with clout that the sheet cut down insufflates or inhales the clout pipe.

According to the utility model discloses a second aspect embodiment hose material former, it includes according to the utility model discloses the sheet deburring mechanism of above-mentioned first aspect embodiment.

According to the utility model discloses hose material former, it has following beneficial effect at least: by adopting the sheet trimming mechanism, the oblique notches which are inclined relative to the surface plane of the sheet can be respectively cut at the two sides of the sheet, when the sheet is welded, the two sides of the sheet are bent, and the oblique notches at the two sides of the sheet can be overlapped for welding, so that the inner side surface and the outer side surface of the pipe at the welding position can be smoothly transited, the better pipe welding effect is realized, and the attractiveness of the manufactured pipe is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a radial cross-sectional structure of a pipe manufactured by a conventional hose forming apparatus in the background art of the present invention;

FIG. 2 is a schematic view of a radial cross-sectional structure of a pipe manufactured by the hose forming apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a sheet trimming mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a portion of the construction of the sheet trimmer mechanism of FIG. 3;

FIG. 5 is a schematic view of a portion of the construction of the sheet trimmer mechanism of FIG. 3;

FIG. 6 is a schematic structural view of another perspective of the sheet trimmer mechanism of FIG. 5;

FIG. 7 is a schematic top structural view of the sheet trimmer mechanism of FIG. 5;

FIG. 8 is a side view of the trimmer mechanism of FIG. 5.

Reference numerals:

the sheet material comprises a sheet material 1, a sheet material surface plane 2, a bevel cut 3 and a step structure 4;

the feeding device comprises a main body seat 100, a feeding surface 101, a feeding channel 102, a threaded rod 110, a first threaded section 111, a second threaded section 112, a guide rod 120, a limiting member 130, an elastic member 131 and an included angle a;

trimming assembly 200, trimming knife 210, trimming knife holder 220, graduated scale 221, and excess material pipe 230.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that if an orientation description is referred to, for example, the directions or positional relationships indicated by the upper, lower, left, right, etc. are based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 3, 4, 5 and 7, the sheet deburring mechanism includes a main body base 100 and a deburring assembly 200, the main body base 100 has a feeding surface 101 through which a sheet 1 is conveyed, the deburring assembly 200 is disposed on the main body base 100, the deburring assembly 200 includes two deburring knives 210, the two deburring knives 210 are distributed at intervals, the deburring knives 210 are disposed obliquely relative to the feeding surface 101 and form an acute included angle a with the feeding surface 101, so that the deburring knives 210 can cut a bevel notch 3 which is oblique relative to a sheet surface plane 2 at the side of the sheet 1.

It can be understood that, as shown in fig. 3, 4, 5 and 7, two trimming knives 210 are spaced apart from each other in the left-right direction, and the trimming knives 210 are inclined with respect to the feeding surface 101 and form an acute included angle a with the feeding surface 101. When the sheet welding machine is used, a sheet 1 is conveyed to pass through the feeding surface 101 of the main body seat 100, when the sheet 1 passes through the feeding surface 101, the surface plane 2 of the sheet is parallel to the feeding surface 101, the left side part and the right side part of the sheet 1 are cut through the two trimming knives 210 which are distributed at intervals, the trimming knives 210 are obliquely arranged relative to the feeding surface 101, and an acute included angle a is formed between each trimming knife 210 and the feeding surface 101, so that the trimming knives 210 can cut oblique notches 3 which are oblique relative to the surface plane 2 of the sheet 1 at the side parts of the sheet 1, when the subsequent sheet 1 is welded, the two sides of the sheet 1 are bent, and the oblique notches 3 at the two sides of the sheet 1 can be overlapped and welded, so that a pipe as shown in the figure 2 can be manufactured, the inner side surface and the outer side surface of the welded part of the pipe can be smoothly transited, a good pipe welding effect can be realized, and the attractiveness of the manufactured pipe is improved.

In practical application, the feeding surface 101 may be set correspondingly according to the conveying condition of the sheet 1, the included angle a may be 45 degrees or 30 degrees, and the like, as long as the trimming blade 210 is capable of cutting the oblique notch 3 inclined with respect to the sheet surface plane 2 at the side of the sheet 1, and specifically, the included angle a may be set correspondingly according to the subsequent welded pipe condition of the actual sheet 1; the specific structure of the main body base 100 and the trimming assembly 200 can be set according to the actual use requirement, and will not be described in detail herein, and will be described in detail below.

In some embodiments, the separation distance between two trim knives 210 may be adjustable. Understandably, through setting up that the spacing distance between two deburring swoves 210 is adjustable for deburring subassembly 200 can better adapt to the deburring demand of different sheet 1 widths, improves the utility model discloses a production adaptability, the use of being convenient for produce. In practical applications, the specific structure for adjusting the spacing distance between the two trimming knives 210 can be set according to practical needs, and will not be described in detail here, and will be described in detail below.

In some embodiments, the trimming assembly 200 further includes two trimming blade holders 220, the two trimming blades 210 are respectively connected to the two trimming blade holders 220 in a one-to-one correspondence manner, the trimming blade holders 220 are movably disposed on the main body base 100, the main body base 100 is rotatably connected to a threaded rod 110, and the threaded rod 110 penetrates through the trimming blade holders 220 and is in threaded engagement with the trimming blade holders 220.

It can be understood that, as shown in fig. 5 and 8, two trimming knives 210 are respectively connected with two trimming knife bases 220 in a one-to-one correspondence manner, a guide rod 120 is arranged on the main body base 100, the guide rod 120 penetrates through the trimming knife bases 220, and the trimming knife bases 220 can move along the guide rod 120, so that the trimming knife bases 220 can be movably arranged on the main body base 100; the main body seat 100 is rotatably connected with a threaded rod 110, the threaded rod 110 penetrates through the trimming tool apron 220 and is in threaded fit with the trimming tool apron 220, a screw rod structure is roughly formed, the trimming tool apron 220 can be driven to move along the threaded rod 110 by rotating the threaded rod 110, so that the adjustment of the spacing distance between the two trimming tools 210 is realized, the structure is simple, the adjustment operation is convenient, the movement of the trimming tool apron 220 can be well controlled, the spacing distance between the two trimming tools 210 can be finely adjusted, the use is convenient, meanwhile, the guide rod 120 is arranged to guide the movement of the trimming tool apron 220, the deviation generated by the movement of the trimming tool apron 220 is favorably avoided, and the movement reliability of the trimming tool apron is improved.

In practical applications, the trimming blade holder 220 may be movably connected to the main body holder 100 through a sliding rail structure; the threaded rod 110 is arranged to drive the trimming knife holder 220 to move, and the threaded rod can be connected with the trimming knife holder 220 through a driver such as an air cylinder and an electric push rod to drive the trimming knife holder 220 to move, so that the distance between the two trimming knives 210 can be adjusted, the specific structure of the trimming knife holder 220 can be set correspondingly according to actual use needs, and the threaded rod can be understood by those skilled in the art.

In some embodiments, the threaded rod 110 is provided with one and penetrates through two trimming tool holders 220, the threaded rod 110 is provided with a first threaded section 111 and a second threaded section 112, one of the two trimming tool holders 220 is connected to the first threaded section 111, the other trimming tool holder is correspondingly connected to the second threaded section 112, and the thread direction of the first threaded section 111 is opposite to that of the second threaded section 112.

It can be understood that, as shown in fig. 5 and 8, one threaded rod 110 is provided with two trimming tool holders 220, the left side of the threaded rod 110 is provided with a first threaded section 111, the right side of the threaded rod 110 is provided with a second threaded section 112, one of the two trimming tool holders 220 is connected to the first threaded section 111, and the other trimming tool holder is correspondingly connected to the second threaded section 112, and the thread turning direction of the first threaded section 111 is opposite to the thread turning direction of the second threaded section 112, so that when the threaded rod 110 is rotated, the moving directions of the two trimming tool holders 220 are opposite, and relative movement approaching or separating is realized, so that the two trimming tool holders 220 can be driven to move simultaneously by rotating one threaded rod 110, the spacing distance between the two trimming tools 210 is changed, and the adjustment operation of the spacing distance between the two trimming tools 210 is facilitated.

In practical application, two threaded rods 110 may be further provided and respectively connected with the two trimming tool holders 220 in a one-to-one correspondence manner, and the specific setting of the threaded rods 110 may be set according to actual use requirements, which is not described herein again.

In some embodiments, a scale 221 is attached to at least one of the two trim blade holders 220, and the scale 221 extends in the direction of relative movement between the two trim blade holders 220 and is used to measure the distance between the two trim blade holders 220.

It can be understood that, as shown in fig. 5 and 8, the trimming blade holder 220 on the right side is connected with a graduated scale 221, the graduated scale 221 extends in the left-right direction, and the distance between the two trimming blade holders 220 is measured through the graduated scale 221, so that a user can know the spacing distance between the two trimming blades 210 conveniently, and the user can adjust and control the spacing distance between the two trimming blades 210 through the graduated scale 221 conveniently.

In practical application, the trimming blade holder 220 located on the left side may be connected to a graduated scale 221, or both trimming blade holders 220 are connected to graduated scales 221, so that a user can conveniently obtain the spacing distance between the two trimming blades 210, and the specific structure of the graduated scale 221 may be set according to actual use requirements, which should be understood by those skilled in the art.

In some embodiments, the main body seat 100 is provided with a feeding channel 102 for the sheet material 1 to pass through, and the two trimming knives 210 are both located at the outlet of the feeding channel 102.

It can be understood that, as shown in fig. 4, 5, 6 and 7, the main body seat 100 is provided with a feeding channel 102 running through from top to bottom, the two trimming knives 210 are both located at an upper outlet of the feeding channel 102, the feeding channel 102 is in a flat channel structure and is adapted to the sheet 1, when the sheet 1 is conveyed through the sheet trimming mechanism, the sheet 1 passes through the feeding channel 102 of the main body seat 100 from bottom to top, so as to better limit the sheet 1, and the trimming knives 210 are located at an outlet of the feeding channel 102, so as to facilitate the trimming knives 210 to trim and cut the side edge of the sheet 1 output from the feeding channel 102, and achieve better trimming effect. In practical application, the specific structure of the feeding channel 102 and the specific distribution of the trimming knives 210 can be set according to practical application requirements.

In some embodiments, the feeding surface 101 is disposed on a side surface of the feeding channel 102, the main body base 100 is connected with a limiting member 130, and the limiting member 130 is located at the feeding channel 102 and can press the sheet 1 against the feeding surface 101.

It can be understood that, as shown in fig. 4 and 7, the feeding surface 101 is disposed on a side surface of the feeding channel 102, the feeding surface 101 is parallel to the left-right direction, when the sheet 1 is conveyed through the sheet trimming mechanism, the feeding channel 102 of the main body seat 100 passes through from bottom to top, and the limiting member 130 is disposed at the feeding channel 102, so that the limiting member 130 can press the sheet 1 against the feeding surface 101, thereby further limiting the sheet 1, limiting the position of the sheet 1 output from the feeding channel 102, facilitating the trimming knife 210 to perform trimming and cutting on the side edge of the sheet 1 output from the feeding channel 102, facilitating the reduction of the possibility of deviation of the sheet 1 when the sheet 1 is cut, achieving a better trimming effect, and improving the reliability of the trimming process. In practical applications, the specific structure of the limiting member 130 can be set according to practical needs.

In some embodiments, the limiting member 130 is rotatably connected to the main body base 100, the elastic member 131 is connected to the limiting member 130, and the limiting member 130 can have a tendency to rotate towards the sheet 1 under the action of the elastic member 131 and can be pressed against the sheet 1.

It can be understood that, as shown in fig. 4, the limiting member 130 is rotatably connected to the main body base 100, the elastic member 131 is connected to the limiting member 130, and under the action of the elastic member 131, the limiting member 130 has a tendency of rotating toward the sheet 1, so that when the sheet 1 passes through the feeding channel 102, the limiting member 130 can press against the sheet 1 under the action of the elastic member 131, and press the sheet 1 against the feeding surface 101, so that the limiting member 130 and the feeding surface 101 sandwich the sheet 1, thereby achieving limiting. By arranging the elastic part 131 and utilizing the elastic force to clamp the sheet 1 by the limiting part 130 and the feeding surface 101, on one hand, a better limiting effect can be realized, and the reliability is better; on the other hand, the sheet feeding device can be suitable for sheets 1 with different thicknesses, has good adaptability, is favorable for avoiding the influence on the output of the sheet 1 from the feeding channel 102 due to excessive clamping of the sheet 1, and is convenient to use.

In practical applications, besides the elastic member 131, the limiting member 130 may also have a tendency to rotate toward the sheet 1 through a magnetic attraction structure, or the limiting member 130 may have a tendency to rotate toward the sheet 1 through a magnetic repulsion effect, so that the limiting member can be pressed against the sheet 1, or the limiting member 130 is an air bag, so that the limiting member can be pressed against the sheet 1 and has a certain deformation capability, and the setting can be specifically set according to actual needs, which is not described herein.

In some embodiments, trimming assembly 200 further includes a waste pipe 230, two waste pipes 230 are provided and respectively correspond to two trimming knives 210, the waste pipes 230 are in a tubular structure, and a blower (not shown) is connected to the waste pipes 230 and is capable of blowing or exhausting air to the waste pipes 230 so as to blow or suck the waste materials cut from sheet 1 into the waste pipes 230.

It can be understood that, as shown in fig. 3, 5, 6 and 7, two residual material pipes 230 are arranged and distributed at intervals left and right, the two residual material pipes 230 respectively correspond to the two trimming knives 210 one by one, and the residual material pipes 230 are in a tubular structure. When the device is used, the sheet 1 penetrates through the feeding channel 102 and is output, the side part of the sheet 1 is trimmed and cut through the blade part of the trimming knife 210, the cut residual material is blown or sucked into the residual material pipe 230 by a fan, and then is discharged and collected by the residual material pipe 230, so that the trimmed sheet 1 is separated from the residual material, and meanwhile, the cut residual material is conveniently discharged and collected and is convenient to use.

In practical application, the fan can be a negative pressure fan, and air is sucked into the excess material pipe 230, so that the cut excess material can be sucked into the excess material pipe 230 from the sheet 1, and the cut excess material and the sheet 1 after trimming can be conveniently separated; or, the fan can also be a positive pressure fan, and the inside of the excess material pipe 230 is blown, so that the cut excess material can be blown into the excess material pipe 230, and the specific structures of the excess material pipe 230 and the fan can be set according to actual use requirements, without limitation.

According to the utility model discloses a hose former of second aspect embodiment, it includes according to the utility model discloses the sheet deburring mechanism of above-mentioned first aspect embodiment.

According to the utility model discloses hose former, through adopting foretell sheet deburring mechanism, can cut out the scarf 3 for 2 slopes on sheet surface plane respectively in the both sides portion of sheet 1, when sheet 1 welding, with the bending roll in 1 both sides of sheet, can stack the scarf 3 department of sheet 1 both sides and weld, thereby can make as shown in figure 2 tubular product, can make tubular product all can smooth transition in the interior lateral surface of welding department, realize better tubular product welding effect, improve the aesthetic property of the tubular product that makes.

Since other configurations of the hose forming apparatus according to the embodiments of the present invention are known to those skilled in the art, they will not be described in detail herein.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A sheet trimmer mechanism, comprising:

a main body seat (100), wherein the main body seat (100) is provided with a feeding surface (101) for conveying the sheet (1);

the trimming assembly (200) is arranged on the main body seat (100), the trimming assembly (200) comprises two trimming knives (210), the two trimming knives (210) are distributed at intervals, the trimming knives (210) are obliquely arranged relative to the feeding surface (101) and form an acute included angle a with the feeding surface (101), so that the trimming knives (210) can cut inclined notches (3) which are inclined relative to the surface plane (2) of the sheet material at the side parts of the sheet material (1).

2. The sheet trimmer mechanism of claim 1,

the spacing distance between the two trimming knives (210) can be adjusted.

3. The sheet trimmer mechanism of claim 2,

the trimming assembly (200) further comprises two trimming tool holders (220), the two trimming tools (210) are respectively connected with the two trimming tool holders (220) in a one-to-one correspondence mode, the trimming tool holders (220) can be movably arranged on the main body seat (100), a threaded rod (110) is rotatably connected to the main body seat (100), and the threaded rod (110) penetrates through the trimming tool holders (220) and is in threaded fit with the trimming tool holders (220).

4. The sheet trimmer mechanism of claim 3,

the threaded rod (110) is provided with one trimming tool apron (220) which penetrates through the threaded rod (110), the threaded rod (110) is provided with a first threaded section (111) and a second threaded section (112), one of the two trimming tool apron (220) is connected to the first threaded section (111), the other trimming tool apron is correspondingly connected to the second threaded section (112), and the thread turning direction of the first threaded section (111) is opposite to the thread turning direction of the second threaded section (112).

5. The sheet trimmer mechanism of claim 3,

at least one of the two trimming tool holders (220) is connected with a graduated scale (221), and the graduated scale (221) extends along the relative movement direction between the two trimming tool holders (220) and is used for measuring the distance between the two trimming tool holders (220).

6. The sheet trimmer mechanism of claim 1,

the main body seat (100) is provided with a feeding channel (102) for the sheet (1) to penetrate through, and the two trimming knives (210) are located at the outlet of the feeding channel (102).

7. The sheet trimmer mechanism of claim 6,

the feeding surface (101) is arranged on one side surface of the feeding channel (102), the main body seat (100) is connected with a limiting piece (130), and the limiting piece (130) is located at the feeding channel (102) and can enable the sheet (1) to be pressed against the feeding surface (101).

8. The sheet trimmer mechanism of claim 7,

the limiting member (130) is rotatably connected to the main body base (100), an elastic member (131) is connected to the limiting member (130), and the limiting member (130) can have a tendency of rotating towards the sheet (1) under the action of the elastic member (131) and can be pressed against the sheet (1).

9. The sheet trimmer mechanism of claim 1,

the trimming assembly (200) further comprises a residual material pipe (230), the residual material pipe (230) is provided with two parts which are respectively in one-to-one correspondence with the two trimming knives (210), the residual material pipe (230) is of a tubular structure, the residual material pipe (230) is connected with a fan, and the fan can blow or exhaust air to the residual material pipe (230) so as to blow or suck residual materials cut by the sheet (1) into the residual material pipe (230).

10. A hose forming apparatus, characterized by comprising a sheet trimmer mechanism according to any one of claims 1 to 9.

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