An iron tape slitting machine for pipe production

Abstract

The present invention relates to the field of iron tape production, and in particular to an iron tape stripping machine for pipe production, comprising a slitting machine, a second connecting roller, and a limiter, etc.; the slitting machine is rotatably connected to two first connecting rollers symmetrically arranged in an upper and lower direction, and each first connecting roller is provided with a plurality of slitting knives; the slitting machine is rotatably connected to two second connecting rollers symmetrically arranged in an upper and lower direction, and the second connecting rollers are located to the right of the first connecting rollers; each second connecting roller is provided with a plurality of limiters, and each limiter is provided with a first fixing portion and a second fixing portion. The present invention flattens the tape by an extrusion ring, thereby solving the problem that when the slitting knife is used to slit the sheet material, the sheet material is subjected to the shear force of the two adjacent slitting knives above and below, causing the front and rear cutting edges of the tape to shrink toward the middle, causing the cutting edge of the tape to move away from the limiter, affecting the stable transportation and stable winding of the tape, and affecting the grinding of the cutting edge of the tape by the grinding part.

Description

Technical Field

[0001] The invention relates to the field of iron tape production, in particular to an iron tape slitting machine for pipeline production. Background Art

[0002] In pipeline production, iron tape is needed to fix and protect the pipeline. However, in the process of using a slitting machine to slice the material to form the iron tape, in order to prevent the burrs on the cut edge of the iron tape from scratching the workers, additional grinding equipment is needed to deal with the burrs on the cut edge of the iron tape, which is costly.

[0003] Furthermore, the existing slitting machine usually performs slitting operation by applying shear force to the sheet by two adjacent slitting knives above and below. However, after the sheet is subjected to the shear force of the two adjacent slitting knives above and below, Figure 5 、 Figure 13 As shown, the two cut edges of the slitting tape will shrink toward the middle, causing the tape to be arc-shaped as a whole, affecting the stable transportation and stable winding of the tape after slitting. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing slitting machine for slicing materials to form iron tape, additional grinding equipment is needed to process the burrs on the cut edges of the iron tape, which is costly. In addition, during the slitting process, the two cut edges of the tape obtained by slitting will shrink toward the middle, causing the tape to be arc-shaped as a whole, affecting the stable transportation and stable winding of the tape after slitting. The present invention provides an iron tape slitting machine for pipeline production.

[0005] The technical implementation scheme of the present invention is: a slitting machine for iron tape for pipeline production, including a slitting machine; the slitting machine is rotatably connected to two first connecting rollers symmetrically arranged in an upper and lower manner, and each first connecting roller is provided with a plurality of slitting knives; it also includes a second connecting roller, a limiter and an extrusion ring; the slitting machine is rotatably connected to two second connecting rollers symmetrically arranged in an upper and lower manner, and the second connecting roller is located to the right of the first connecting roller; each second connecting roller is provided with a plurality of limiters, and each limiter is provided with a first fixing part and a second fixing part, and the first fixing part and the second fixing part are used to fix the tape; the first fixing part of each upper limiter is in contact with the second fixing part of the corresponding lower limiter, and the first fixing part of each lower limiter is in contact with the second fixing part of the corresponding upper limiter; each limiter is provided with a grinding part for grinding burrs on the edge of the iron tape; each second connecting roller is fixed with a plurality of extrusion rings for flattening the tape, and the extrusion ring is located between two adjacent first fixing parts.

[0006] More preferably, the width of the second fixing portion is greater than the width of the first fixing portion.

[0007] More preferably, an extrusion plate is further included; each extrusion ring is slidably connected to a plurality of extrusion plates distributed in a ring array, and a spring is provided between the extrusion plate and the extrusion ring.

[0008] More preferably, one end of each extrusion plate away from the extrusion ring is rotatably connected to the first roller.

[0009] More preferably, all the slitting knives are slidably connected to the first connecting roller; all the limiters are slidably connected to the second connecting roller, all the extrusion rings are slidably connected to the second connecting roller, and all the slitting knives, all the limiters and all the extrusion rings are provided with locking bolts.

[0010] More preferably, it also includes a connecting seat, an oil pipeline, a connecting frame, an smear plate, an elastic member and a connecting plate; at least two connecting seats are fixedly connected to the slitting machine; the two connecting seats are commonly fixedly connected to an oil pipeline; the two connecting seats are commonly slidably connected to a connecting frame; an elastic member is fixedly connected between all the connecting seats and the connecting frames; a number of smear plates for applying anti-rust oil to the cutting edge of the wrapping tape are provided on the connecting frame, the smear plates are arranged in a Z shape, and a sponge layer is provided on the surface of the smear plates; all the smear plates are connected to the oil pipeline; a connecting plate is provided on the side of the connecting frame facing the limiter, and the connecting plate is located on the rotation path of the extrusion plate below.

[0011] More preferably, the smear plate is slidably connected to the connecting frame via an electric slider; and the connecting frame is provided with a sliding groove for sliding the electric slider.

[0012] More preferably, the oil delivery pipe is connected to all the smear plates through a hose.

[0013] More preferably, a second roller is rotatably connected to one side of the connecting plate facing the limiter.

[0014] More preferably, the spring force between the extrusion plate and the extrusion ring is greater than the elastic force of the elastic member.

[0015] The beneficial effects of the present invention are as follows: the present invention grinds the cut edge of the wrapping tape through the grinding part, thereby avoiding residual burrs on the cut edge of the wrapping tape, causing scratches on the hands during manual traction and subsequent use, and there is no need to use additional equipment to remove burrs before the wrapping tape is conveyed to the external winder, thereby reducing costs.

[0016] The tape is flattened by the extrusion ring to solve the problem that when the sheet is cut by the slitting knife, the sheet is subjected to the shear force of the two adjacent slitting knives above and below, causing the front and rear cutting edges of the tape to shrink toward the middle, resulting in the cutting edge of the tape moving away from the limiter, affecting the stable transportation and stable winding of the tape, and affecting the grinding of the cutting edge of the tape by the grinding part.

[0017] The flattening operation of the strap is performed by replacing the outer surface of the extrusion ring with an extrusion plate to avoid the strap being fixed by the limiter and having limited space for strap movement, which leads to failure in strap flattening.

[0018] By setting the width of the second fixing portion to be greater than the width of the first fixing portion, when the extrusion plate replaces the outer ring surface of the extrusion ring to flatten the strap, the second fixing portion ensures that the cut edge of the strap is supported, preventing the cut edge of the strap from detaching from the second fixing portion, thereby ensuring the flattening effect of the extrusion plate on the strap.

[0019] The present invention also has the following beneficial effects:

[0020] The first round roller replaces the extrusion plate in contact with the tape, so that the first round roller rotates during the flattening process, thereby avoiding wear on the tape surface and affecting subsequent use.

[0021] When slitting the sheet, the locking bolts on the slitting knife, limiter and extrusion ring can be loosened, and then the slitting knife, limiter and extrusion ring can be pushed according to the width requirement of the tape, and the locking bolts can be tightened again to achieve controllable slitting width of the tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the iron tape slitting machine for pipeline production according to the present invention from a first viewing angle;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the iron tape slitting machine for pipe production according to the present invention from a second viewing angle;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the second connecting roller, the limiter and the extrusion ring combination of the present invention;

[0025] Figure 4 A top view of the first connecting roller, slitting knife, second connecting roller and limiter assembly of the present invention;

[0026] Figure 5 It is a left side view of the first connecting roller and slitting knife combination of the present invention;

[0027] Figure 6 It is a right side view of the second connecting roller, the limiter, the extrusion ring and the extrusion plate assembly of the present invention;

[0028] Figure 7 is a schematic diagram of the three-dimensional structure of the limiter of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the extrusion ring and the extrusion plate combination of the present invention;

[0030] Figure 9It is a schematic diagram of the three-dimensional structure of the combination of the restrictor, the extrusion ring, the connecting seat, the oil pipeline and the connecting frame of the present invention;

[0031] Figure 10 It is a schematic diagram of the three-dimensional structure of the combination of the connecting seat, oil pipeline, connecting frame, smear plate and elastic member of the present invention;

[0032] Figure 11 It is a front view of the combination of the connecting seat, oil pipeline, connecting frame, smear plate, elastic member and connecting plate of the present invention;

[0033] Figure 12 Schematic diagram of the three-dimensional structure of the smear plate of the present invention;

[0034] Figure 13 It is a state diagram of the tape of the present invention being cut and bent.

[0035] The components in the accompanying drawings are marked as follows: 111-wrapping tape, 1-slitting machine, 1001-first connecting roller, 1002-slitting knife, 1003-servo motor, 101-second connecting roller, 102-limiter, 10201-first fixing part, 10202-grinding part, 10203-second fixing part, 103-extrusion ring, 104-extrusion plate, 10401-first round roller, 201-connecting seat, 202-oil pipeline, 203-connecting frame, 204-smear plate, 20401-sponge layer, 20402-electric slider, 205-elastic part, 206-connecting plate, 20601-second round roller. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figures 1-8 and Figure 13 As shown, an iron tape slitting machine for pipe production includes a slitting machine 1; the slitting machine 1 is rotatably connected to two first connecting rollers 1001 symmetrically arranged in an upper and lower direction, and each first connecting roller 1001 is provided with a plurality of slitting knives 1002;

[0039] It also includes a second connecting roller 101, a limiter 102 and an extrusion ring 103; two second connecting rollers 101 symmetrically arranged in an upper and lower manner are rotatably connected to the slitting machine 1, and the second connecting roller 101 is located on the right of the first connecting roller 1001; each second connecting roller 101 is provided with a plurality of limiters 102, and each limiter 102 is provided with a first fixing portion 10201 and a second fixing portion 10203; the first fixing portion 10201 of each upper limiter 102 is in contact with the second fixing portion 10203 of the corresponding lower limiter 102, and the first fixing portion 10201 of each lower limiter 102 is in contact with the second fixing portion 10203 of the corresponding upper limiter 102; each limiter 102 is provided with a grinding portion 10202; each second connecting roller 101 is fixed with a plurality of extrusion rings 103, and the extrusion ring 103 is located between two adjacent first fixing portions 10201.

[0040] Four servo motors 1003 are fixedly connected to the slitting machine 1 . The output ends of the two servo motors 1003 on the left are fixedly connected to the adjacent first connecting rollers 1001 , and the output ends of the two servo motors 1003 on the right are fixedly connected to the adjacent second connecting rollers 101 .

[0041] The width of the second fixing portion 10203 is greater than the width of the first fixing portion 10201 .

[0042] It also includes an extrusion plate 104 ; each extrusion ring 103 is slidably connected to a plurality of extrusion plates 104 distributed in a ring array, and a spring is provided between the extrusion plate 104 and the extrusion ring 103 .

[0043] One end of each extrusion plate 104 away from the extrusion ring 103 is rotatably connected to a first round roller 10401 .

[0044] All the slitting knives 1002 are slidably connected to the first connecting roller 1001; all the limiters 102 are slidably connected to the second connecting roller 101, and all the extrusion rings 103 are slidably connected to the second connecting roller 101, and all the slitting knives 1002, all the limiters 102 and all the extrusion rings 103 are provided with locking bolts, which are used to fix the slitting knives 1002 and the limiters 102 on the corresponding first connecting roller 1001 and the second connecting roller 101.

[0045] The working principle of the above embodiment is as follows:

[0046] First, Figure 1 It is the viewing angle reference, where the side where the slitting machine 1 is marked is the left;

[0047] When using, Figure 5As shown, the staff or external traction equipment pushes the sheet to between all the slitting knives 1002, and then the servo motor 1003 drives all the slitting knives 1002 through the first connecting roller 1001 to perform a slitting operation on the sheet. After the sheet is slit, a plurality of wrapping tapes 111 are formed. Then, the staff or external traction equipment pushes the slit wrapping tapes 111 to between all the limiters 102. At this time, the servo motor 1003 drives all the limiters 102 to convey the wrapping tape 111 to the right through the second connecting roller 101; Figure 6 As shown, the cutting edges of the wrapping tape 111 are fixed by the upper and lower adjacent limiters 102. After the wrapping tape 111 is just delivered out of the limiter 102, it is first pushed to the external reel by manual or external traction equipment for reeling.

[0048] Note that Figure 6 As shown, the first fixing portion 10201 of each upper limiter 102 is in contact with the second fixing portion 10203 of the corresponding lower limiter 102, and the first fixing portion 10201 of each lower limiter 102 is in contact with the second fixing portion 10203 of the corresponding upper limiter 102, so that the wrapping tape 111 is limited by the corresponding limiter 102 and discharged in an upper and lower staggered distribution, which is convenient for manual or external traction equipment to pull the wrapping tape 111.

[0049] Further, if Figure 7 As shown, in the process of the limiter 102 conveying the wrapping tape 111 to the right, the cutting edge of the wrapping tape 111 is polished by the polishing part 10202 provided on the limiter 102, so as to avoid burrs remaining on the cutting edge of the wrapping tape 111, causing scratches on the hands during manual traction and subsequent use, and there is no need to use additional equipment to remove burrs before the wrapping tape 111 is conveyed to the external reel, thereby reducing costs.

[0050] Further, when the servo motor 1003 drives all the limiters 102 to convey the wrapping tape 111 to the right through the second connecting roller 101, the second connecting roller 101 also drives all the extrusion rings 103 to rotate. Figure 4 The outer ring surface of the extrusion ring 103 contacts the middle of the wrapping tape 111, so that as the sheet is cut, when the wrapping tape 111 enters between the limiters 102, the outer ring surface of the extrusion ring 103 squeezes the middle of the wrapping tape 111 and flattens the wrapping tape 111, solving the problem that when the sheet is cut by the slitting knife 1002, the sheet is subjected to the shear force of the upper and lower adjacent slitting knives 1002, causing the front and rear cutting edges of the wrapping tape 111 to shrink toward the middle, and the wrapping tape 111 as a whole is flat. Figure 13 The arc shape shown causes the cutting edge of the wrapping tape 111 to move away from the limiter 102 , affecting the stable conveying and stable winding of the wrapping tape 111 , and affecting the problem of the grinding part 10202 grinding the cutting edge of the wrapping tape 111 .

[0051] Furthermore, by arranging a plurality of extrusion plates 104 on the extrusion ring 103, during the rotation of the extrusion ring 103, the extrusion plates 104 replace the outer surface of the extrusion ring 103 to flatten the wrapping belt 111. Since the extrusion plates 104 protrude from the outer surface of the extrusion ring 103, that is, before the wrapping belt 111 enters between all the limiters 102, the extrusion plates 104 first flatten the wrapping belt 111, thereby preventing the wrapping belt 111 from being restricted in its movable space after being fixed by the limiters 102. The limit causes the wrapping tape 111 to fail to flatten, which affects the conveying of the wrapping tape 111 and the grinding of the cutting edge. It should be noted that when the extrusion plate 104 rotates and contacts the wrapping tape 111, while the extrusion plate 104 applies pressure to the wrapping tape 111, the wrapping tape 111 also applies a reaction force to the extrusion plate 104, causing the extrusion plate 104 to move toward the inside of the extrusion ring 103, and the spring between the extrusion plate 104 and the extrusion ring 103 is compressed until the extrusion plate 104 is completely retracted into the extrusion ring 103.

[0052] Furthermore, by setting the width of the second fixing portion 10203 to be greater than the width of the first fixing portion 10201, as shown in FIG. Figure 6 As shown, when the extrusion plate 104 replaces the outer ring surface of the extrusion ring 103 to perform the flattening operation on the wrapping tape 111, the second fixing portion 10203 ensures that the cutting edge of the wrapping tape 111 is supported to prevent the cutting edge of the wrapping tape 111 from separating from the second fixing portion 10203, thereby ensuring the flattening effect of the extrusion plate 104 on the wrapping tape 111.

[0053] On the basis of the above technical effects, the present invention also has the following advantages:

[0054] like Figure 8 As shown, when the extrusion plate 104 replaces the outer ring surface of the extrusion ring 103 to perform the flattening operation on the wrapping tape 111, the first round roller 10401 set on the extrusion plate 104 contacts the wrapping tape 111. After the first round roller 10401 contacts the wrapping tape 111, as the extrusion plate 104 rotates following the extrusion ring 103, the first round roller 10401 and the wrapping tape 111 generate relative friction, and the first round roller 10401 rotates on its own to avoid causing wear on the surface of the wrapping tape 111 and affecting subsequent use.

[0055] like Figure 4 As shown, when the sheet is cut, the locking bolts on the slitting knife 1002, the limiter 102 and the extrusion ring 103 can be loosened manually in advance, and then the slitting knife 1002, the limiter 102 and the extrusion ring 103 can be pushed to the appropriate position according to the width requirement of the wrapping tape 111, and the locking bolts can be tightened again to achieve controllable cutting width of the wrapping tape 111.

[0056] Example 2

[0057] On the basis of Example 1, Figure 1 and Figures 9-12 As shown, it also includes a connecting seat 201, an oil pipe 202, a connecting frame 203, an applicator plate 204, an elastic member 205 and a connecting plate 206; two connecting seats 201 are fixedly connected to the slitting machine 1; the two connecting seats 201 are commonly fixedly connected to an oil pipe 202, and the oil pipe 202 is connected to an external delivery pump, which is used to deliver rust-proof oil to the oil pipe 202; the two connecting seats 201 are commonly slidably connected to a connecting frame 203; an elastic member 205 is fixedly connected between all the connecting seats 201 and the connecting frame 203, and the elastic member 205 is a spring; a number of applicators 204 are provided on the connecting frame 203, the applicator plates 204 are arranged in a Z shape, and a sponge layer 20401 is provided on the surface of the applicator plates 204; all the applicators 204 are connected to the oil pipe 202; a connecting plate 206 is provided on the side of the connecting frame 203 facing the limiter 102, and the connecting plate 206 is located on the rotation path of the lower extrusion plate 104.

[0058] The smear plate 204 is slidably connected to the connecting frame 203 through the electric slider 20402; the connecting frame 203 is provided with a sliding groove for the electric slider 20402 to slide.

[0059] The oil delivery pipe 202 is connected to all the smear plates 204 through a hose.

[0060] The connecting plate 206 is rotatably connected to one side of the limiter 102 with a second round roller 20601 .

[0061] The spring force between the extrusion plate 104 and the extrusion ring 103 is greater than the elastic force of the elastic member 205 , ensuring that the extrusion plate 104 stably pushes the connecting frame 203 downward.

[0062] The working principle of the above embodiment is as follows:

[0063] When the wrapping tape 111 is conveyed to the right through the limiter 102 as described in Example 1: Figure 9As shown, the cutting edge of the wrapping tape 111 will contact the smear plate 204, so that the cutting edge of the polished wrapping tape 111 is smeared with anti-rust oil through the smear plate 204, thereby ensuring the rust-proof performance of the cutting edge of the wrapping tape 111, and avoiding the cutting edge of the wrapping tape 111 to be quickly corroded when the wrapping tape 111 is used to protect the pipeline in the future, causing external corrosive substances such as water vapor to penetrate the wrapping tape 111 and corrode the pipeline; in addition, the present invention automatically smears the cutting edge of the wrapping tape 111 with anti-rust oil during the slitting process, and there is no need to set up additional equipment to smear the cutting edge of the wrapping tape 111 with anti-rust oil, thereby reducing costs; it should be noted that the anti-rust oil is replenished into the smear plate 204 through the oil pipeline 202, and the anti-rust oil in the smear plate 204 is discharged to the sponge layer 20401 through the pores thereon; it should be noted that the wrapping tape 111 is flattened by the extrusion plate 104, which can also ensure that the cutting edge of the wrapping tape 111 is in contact with the smear plate 204, thereby ensuring the smearing of the cutting edge of the wrapping tape 111 with anti-rust oil.

[0064] Further, if Figure 11 As shown, when the lower extrusion ring 103 drives the extrusion plate 104 on it to rotate, and in the process of flattening the wrapping tape 111, the extrusion plate 104 on the lower extrusion ring 103 will contact the connecting plate 206. As the extrusion plate 104 rotates following the extrusion ring 103, the extrusion plate 104 applies a downward thrust to the connecting plate 206, so that the connecting frame 203 drives the smear plate 204 to move downward, and the elastic member 205 is compressed. After the extrusion plate 104 passes the connecting plate 206, the connecting frame 203 is reset upward under the action of the elastic member 205. In this way, when the extrusion plate 104 is pressed against the connecting plate 206, the smear plate 204 is pressed downward. During the flattening process of the wrapping tape 111, the connecting frame 203 drives the applicator plate 204 to move back and forth up and down to apply anti-rust oil to the cutting edge of the wrapping tape 111, thereby solving the problem that the cutting edge of the wrapping tape 111 always contacts the same position of the applicator plate 204, resulting in more serious wear of the sponge layer 20401 at the contact part and the need to frequently replace the sponge layer 20401. At the same time, it also solves the problem that the contact position between the sponge layer 20401 and the cutting edge of the wrapping tape 111 is always squeezed by the wrapping tape 111, resulting in inconvenience in the flow of anti-rust oil and the inability to fully apply anti-rust oil to the cutting edge of the wrapping tape 111.

[0065] Furthermore, the connecting frame 203 drives the smear plate 204 to move back and forth up and down to apply anti-rust oil to the cut edge of the wrapping tape 111, which can also avoid the problem of insufficient use of the smear plate 204 causing waste of anti-rust oil in other positions of the smear plate 204.

[0066] On the basis of the above technical effects, the present invention also has the following advantages:

[0067] like Figure 10As shown, when manually adjusting the slitting knife 1002 and the limiter 102 according to the width requirement of the wrapping tape 111, the electric slider 20402 can be manually controlled to drive the smear plate 204 to move horizontally along the connecting frame 203, and the position of the smear plate 204 can be adjusted to adapt to the application of anti-rust oil to wrapping tapes 111 of different widths.

[0068] like Figure 10 As shown, the oil delivery pipe 202 is connected to all the smear plates 204 through a hose to prevent the oil delivery pipe 202 from blocking the movement of the smear plates 204.

[0069] like Figure 10 As shown, when the extrusion plate 104 below contacts the connecting plate 206 and pushes the connecting plate 206 upward, the first round roller 10401 on the extrusion plate 104 contacts the second round roller 20601 on the connecting plate 206, and the first round roller 10401 and the second round roller 20601 rub against each other to rotate, thereby reducing the wear of the extrusion plate 104 and the connecting plate 206 and improving their service life.

[0070] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application.

Claims

1. An iron tape slitting machine for pipe production, comprising a slitting machine (1); the slitting machine (1) is rotatably connected to two first connecting rollers (1001) arranged symmetrically in an upper and lower direction, and each first connecting roller (1001) is provided with a plurality of slitting knives (1002); the characteristics are: It also includes a second connecting roller (101), a limiter (102) and an extrusion ring (103); two second connecting rollers (101) symmetrically arranged in an upper and lower direction are rotatably connected to the slitting machine (1), and the second connecting rollers (101) are located to the right of the first connecting roller (1001); each second connecting roller (101) is provided with a plurality of limiters (102), and each limiter (102) is provided with a first fixing portion (10201) and a second fixing portion (10203), and the first fixing portion (10201) and the second fixing portion (10203) are used to fix the wrapping tape (111); each upper limiter (102) The first fixing portion (10201) of each of the lower limiting devices (102) contacts the second fixing portion (10203) of the corresponding limiting device (102), and the first fixing portion (10201) of each lower limiting device (102) contacts the second fixing portion (10203) of the corresponding upper limiting device (102); each limiting device (102) is provided with a grinding portion (10202) for grinding burrs on the edge of the iron wrapping tape (111); each second connecting roller (101) is fixedly connected with a plurality of extrusion rings (103) for flattening the wrapping tape (111), and the extrusion rings (103) are located between two adjacent first fixing portions (10201); The width of the second fixing portion (10203) is greater than the width of the first fixing portion (10201); It also includes an extrusion plate (104); each extrusion ring (103) is slidably connected to a plurality of extrusion plates (104) distributed in a ring array, and a spring is provided between the extrusion plate (104) and the extrusion ring (103); One end of each extrusion plate (104) away from the extrusion ring (103) is rotatably connected to a first circular roller (10401).

2. The iron tape slitting machine for pipe production according to claim 1, characterized in that: All the slitting knives (1002) are slidably connected to the first connecting roller (1001); all the limiters (102) and all the extrusion rings (103) are slidably connected to the second connecting roller (101); and all the slitting knives (1002), all the limiters (102) and all the extrusion rings (103) are provided with locking bolts.

3. The iron tape slitting machine for pipe production according to claim 1, characterized in that: The invention also includes a connecting seat (201), an oil delivery pipe (202), a connecting frame (203), a smear plate (204), an elastic member (205) and a connecting plate (206); at least two connecting seats (201) are fixedly connected to the slitting machine (1); the two connecting seats (201) are fixedly connected to an oil delivery pipe (202); the two connecting seats (201) are slidably connected to a connecting frame (203); an elastic member (205) is fixedly connected between all the connecting seats (201) and the connecting frame (203); ); A plurality of smear plates (204) for applying anti-rust oil to the cut edge of the wrapping tape (111) are provided on the connecting frame (203); the smear plates (204) are arranged in a Z shape, and a sponge layer (20401) is provided on the surface of the smear plates (204); all the smear plates (204) are connected to the oil pipeline (202); a connecting plate (206) is provided on the side of the connecting frame (203) facing the limiter (102), and the connecting plate (206) is located on the rotation path of the lower extrusion plate (104).

4. The iron tape slitting machine for pipe production according to claim 3, characterized in that: The smear plate (204) is slidably connected to the connecting frame (203) via the electric slider (20402); the connecting frame (203) is provided with a sliding groove for the electric slider (20402) to slide.

5. The iron tape slitting machine for pipe production according to claim 3, characterized in that: The oil delivery pipe (202) is connected to all the smear plates (204) through a hose.

6. The iron tape slitting machine for pipe production according to claim 3, characterized in that: The connecting plate (206) is rotatably connected to a second round roller (20601) on one side facing the limiter (102).

7. The iron tape slitting machine for pipe production according to claim 3, characterized in that: The spring force between the extrusion plate (104) and the extrusion ring (103) is greater than the elastic force of the elastic member (205).

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