Metal bar peeling equipment

Abstract

The invention relates to the technical field of metal processing, in particular to metal bar peeling equipment which comprises a rack, a calendaring assembly is further installed on the rack in a connected mode, and the calendaring assembly comprises an upper calendaring roller, a left calendaring roller, a lower calendaring roller and a right calendaring roller, the upper calendaring roller, the left calendaring roller, the lower calendaring roller and the right calendaring roller are distributed in a circumferential array mode and form an upper inscribed circle pressing point position, a lower inscribed circle pressing point position and a right inscribed circle pressing point position which are used for calendaring and shaping peeled metal bars, and the four inscribed circle pressing point positions are located on the same calendaring inscribed circle path. A peeling knife assembly used for cutting the surface of the metal bar is arranged on the front side of the press polish assembly, a chip blocking mechanism used for preventing metal chips generated in the peeling process from moving backwards is arranged between the peeling knife assembly and the press polish assembly in the front-back direction, and the peeling effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, in particular to a metal rod peeling device. Background Art

[0002] Metal rods have a wide range of applications, and the required amount is increasing. During the production process, metal rods will produce black oxide skin on the surface, which needs to be stripped before they can be used normally. Of course, there are many types of stripping equipment available.

[0003] For example, a Chinese patent with application number 201820808325.6 discloses a peeling calender, which includes a frame, a mounting frame fixedly provided on the frame, a rotating knife frame rotatably provided on the mounting frame, and a peeling mechanism for peeling steel rods provided on the rotating knife frame; a through hole one for the steel rod to pass through is axially provided on the rotating knife frame, and the peeling mechanism faces the steel rod passing through the through hole one; a calendering table is rotatably provided on the mounting frame, the calendering table is connected to the rotating knife frame, and a rolling mechanism for rolling the steel rod is provided on the calendering table; a through hole two connected to the through hole one is axially provided on the calendering table, and a feeding mechanism for feeding the steel rod into the through hole one and a discharging mechanism for pulling the steel rod out of the through hole two are provided on the frame.

[0004] However, with the existing patented technology, when stripping, metal chips that are too long will easily hit the calendering roller, causing damage to the metal rod and the calendering roller, which is not conducive to smooth production and the production of high-quality products. Summary of the invention

[0005] The purpose of the invention is to provide a metal rod peeling device with better peeling effect.

[0006] The above-mentioned object of the present invention is achieved through the following technical scheme: a metal rod peeling equipment, including a frame, on which a calendering assembly is also installed and connected, the calendering assembly includes an upper calendering roller, a left calendering roller, a lower calendering roller and a right calendering roller axially in the front-to-back direction, the upper calendering roller, the left calendering roller, the lower calendering roller and the right calendering roller are distributed in a circular array and form four upper, left, lower and right inscribed circle pressure points for calendering and shaping the peeled metal rod, the four inscribed circle pressure points are on the same calendering inscribed circle path, the front side of the calendering assembly is provided with a peeling knife assembly for cutting the surface of the metal rod, and a chip blocking mechanism is provided between the front and rear of the peeling knife assembly and the calendering assembly for preventing metal chips generated during the peeling process from moving backward.

[0007] As a preferred embodiment of the present invention, the chip blocking mechanism includes a circumferential blocking ring between the peeling knife assembly and the calendering assembly, the circumferential blocking ring can at least block 20% of the cross-sectional area of ​​the circumferential spacing region between two circumferentially adjacent calendering rollers, and the center of the circumferential blocking ring is surrounded to form a passing circular hole for the peeled metal rod to move backward, the aperture of the passing circular hole is larger than the aperture of the calendering inscribed circle, and the passing circular hole and the calendering inscribed circle are coaxial.

[0008] As a preferred embodiment of the present invention, the stripping knife assembly includes an upper left blade head, a lower left blade head, a lower right blade head and an upper right blade head, the upper left blade head, the lower left blade head, the lower right blade head and the upper right blade head are distributed in a circular array and form four inscribed circle stripping points for stripping the metal rod, the four inscribed circle stripping points are on the same stripping inscribed circle, and the upper left blade head, the lower left blade head, the lower right blade head and the upper right blade head are staggered in the circumferential direction with the upper calendering roller, the left calendering roller, the lower calendering roller and the right calendering roller.

[0009] As a preferred embodiment of the present invention, four circumferentially integrally connected blocking plates are formed on the circumferential blocking ring, namely, upper left, lower left, lower right and upper right. The plate surfaces of the blocking plates face the front-to-back direction, and the integrally connected parts between two circumferentially adjacent blocking plates form semicircular recessed limiting grooves recessed toward the axis for positioning the front end of each calendering roller.

[0010] As a preferred embodiment of the present invention, the upper left blocking plate is inclined at the upper left, the lower left blocking plate is inclined at the lower left, the lower right blocking plate is inclined at the lower right, and the upper right blocking plate is inclined at the upper right, and the blocking plate is integrally connected to a mounting connecting plate on one side in the clockwise direction for mounting and connecting with the front side of the frame.

[0011] As a preferred embodiment of the present invention, the blocking plate is integrally connected with a rearwardly extending reinforcing extension guide plate at a hole edge portion close to the circular hole, and all the reinforcing extension guide plates are circumferentially spaced and arranged in a circular array.

[0012] As a preferred embodiment of the present invention, the reinforced extension guide plate is provided with radially extending air exhaust and chip suction holes spaced apart in the front-to-back direction, the air exhaust and chip suction holes extend circumferentially in the shape of rectangular strips, and an exhaust duct connected to the air exhaust and chip suction holes is provided on the outer side of the reinforced extension guide plate.

[0013] As a preferred embodiment of the present invention, the reinforced extension guide plate is located on the periphery of the calendering inscribed circle, and a cold air gun capable of blowing forward and moving along the inner surface of the reinforced extension guide plate is provided on the rear side of the reinforced extension guide plate, and the cold air gun is a pulse jet and the airflow crosses the vacuum chip suction holes.

[0014] As a preferred embodiment of the present invention, the rear end of the reinforced extension guide plate is integrally connected to a rear mounting connecting plate that can be mounted on the rear side of the frame, and the reinforced extension guide plate is formed with a wind guiding reinforcement groove that is arc-shaped downwardly recessed and extends forward and backward for guiding the blowing of the cooling air gun nozzle.

[0015] As a preferred embodiment of the present invention, the upper left cutter head, lower left cutter head, lower right cutter head and upper right cutter head are installed on the front side of the frame through a cutter handle, and at least two front clamping guide wheels arranged front and back are also installed on the cutter handle in front of the corresponding cutter head. The upper left cutter head, lower left cutter head, lower right cutter head and upper right cutter head correspond to the corresponding blocking plate one by one front and back.

[0016] Beneficial effects of the present invention: The equipment of the present application has a good chip blocking effect and can well remove both large and small iron chips, thereby achieving a good peeling effect on the metal rod.

[0017] The equipment and metal bars are better protected, the processing is safer and more reliable, and the efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the peeling device in the embodiment from the front side perspective;

[0019] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure after the chip guard mechanism is removed from the middle structure;

[0020] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure from the top perspective;

[0021] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure from the rear side perspective of the middle structure;

[0022] Figure 5 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle chip guard mechanism;

[0023] Figure 6 is a schematic diagram of the formation principle of the peeling inscribed circle of the peeling device in the embodiment;

[0024] Figure 7 is a schematic diagram of the formation principle of the calendering inscribed circle of the peeling device in the embodiment;

[0025] Figure 8 yes Figure 1 The schematic diagram of the three-dimensional structure after removing a part of the calender roller shaft frame from the middle structure;

[0026] Fig. 9 yes Figure 5 The chip guard mechanism in the chip guard is a three-dimensional chip guard mechanism that is further optimized. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0028] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0029] Examples, such as Figure 1-9 As shown, a metal rod peeling device includes a frame, and a calendering assembly is also installed and connected to the frame, and the calendering assembly includes an upper calendering roller 11, a left calendering roller 12, a lower calendering roller 13 and a right calendering roller 14 axially in the front-to-back direction, and the four calendering rollers are actually arranged in the four directions of north, south, west and east, that is, the upper calendering roller 11, the left calendering roller 12, the lower calendering roller 13 and the right calendering roller 14 are distributed in a circular array and form four upper, left, lower and right inscribed circle pressing points for the peeled metal rod to be calendered and shaped, and the four inscribed circle pressing points are located on the same calendering inscribed circle 11 On the path 11, in the present embodiment, four calendering rollers are used for positioning and calendering, the lowermost part of the upper calendering roller 11 is the upper inscribed circle pressure point, the rightmost part of the left calendering roller 12 is the left inscribed circle pressure point, the uppermost part of the lower calendering roller 13 is the lower inscribed circle pressure point, and the leftmost part of the right calendering roller 14 is the right inscribed circle pressure point. The calendering inscribed circle 1111 path is a virtual circular path, which happens to be a circle passing through the above four inscribed points, and is also a rolling path for calendering the metal rod, because the metal rod rolls during the peeling process. The front side of the calendering assembly is provided with a peeling knife assembly for cutting the surface of the metal rod, and a chip blocking mechanism is provided between the peeling knife assembly and the calendering assembly for preventing the metal chips generated during the peeling process from moving backwards, because there is a large circumferential gap between the calendering rollers during the peeling process, and this gap is exactly where the peeling chips are located, so there will be more iron chips, both large and small. The chip blocking mechanism can well block the iron chips from entering the pressure roller position backwards.

[0030] The specific implementation scheme is as follows: the chip blocking mechanism includes a circumferential blocking ring 2 located between the peeling knife assembly and the calendering assembly, and the circumferential blocking ring 2 can at least block 20% of the cross-sectional area of ​​the circumferential spacing area between two circumferentially adjacent calendering rollers. The cross-sectional area of ​​the circumferential spacing area refers to: the calendering inscribed circle 1111 of the four calendering rollers and the area between their circumscribed circles, the cross-sectional area of ​​the part located between the circumferences of two adjacent calendering rollers is perpendicular to the axial direction. This part of the cross-sectional area should be blocked as much as possible, so not only 20% needs to be blocked, but 40-50% can be preferably blocked, and as close to the position of the calendering inscribed circle 1111 as possible, because it is relatively close to the peeling position in the radial direction. The circumferential direction here refers to the circumference of the calendering inscribed circle 1111, or the circumference of the metal rod, and the axial direction is also the axial direction of the calendering inscribed circle 1111, that is, the front-to-back direction. And the center of the circumferential blocking ring 2 is surrounded to form a circular hole 20 for the peeled metal rod to move backward. The aperture of the circular hole 20 is larger than the aperture of the calendering inscribed circle 1111, and the circular hole 20 and the calendering inscribed circle 1111 are coaxial. This setting is convenient for the passage of the metal rod after peeling and does not affect the calendering of the metal rod by the calendering roller. Generally, the difference between the aperture of the circular hole 20 and the aperture of the calendering inscribed circle 1111 is controlled within 5 mm. Because the peeling thickness will not be very large, it is actually best to be within 2-3 mm. Because there will be a gap here, it will also be easy for small metal chips to enter, so the above setting is made.

[0031] Furthermore, the peeling knife assembly includes an upper left cutter head 31, a lower left cutter head 32, a lower right cutter head 33 and an upper right cutter head 34. The upper left cutter head 31, the lower left cutter head 32, the lower right cutter head 33 and the upper right cutter head 34 are distributed in a circular array and form four inscribed circle peeling points for peeling the metal rod. The existing cutter head can be used. This can be determined according to the metal material. For example, the cutter heads used for surface treatment of copper rods and iron rods are different, and are determined according to the actual metal material. Furthermore, the four inscribed circle peeling points are located on the same peeling inscribed circle 3333, which is similar to the pressure point of the aforementioned calendering roller, except that the inscribed circle peeling point is on the blade of the cutter head, and the upper left cutter head 31, lower left cutter head 32, lower right cutter head 33 and upper right cutter head 34 are arranged alternately with the upper calendering roller 11, left calendering roller 12, lower calendering roller 13 and right calendering roller 14 in the circumferential direction, forming a bagua-shaped arrangement structure, that is, the cutter head is a little forward and the calendering roller is a little backward.

[0032] Preferably, the circumferential blocking ring 2 is formed with four blocking plates 21 connected in an integral manner in the circumferential direction, namely, the upper left, lower left, lower right and upper right. The plate surface of the blocking plate 21 faces the front-to-back direction. The integrally connected portion between two circumferentially adjacent blocking plates 21 forms a semicircular recessed limiting groove 210 that is recessed toward the axis center for positioning each calendering roller. The circumferential blocking ring 2 can be made of steel. The shaft frame z of the calendering roller forms a semicircular arc step z0 at the portion near the front end of the calendering roller. The semicircular arc step z0 can be used for radial insertion and matching with the semicircular recessed limiting groove 210 for positioning. The blocking plate 21 can directly block iron filings, and the four cutter heads also correspond to the four blocking plates 21 one by one.

[0033] Furthermore, the upper left blocking plate 21 is inclined at the upper left, that is, it is inclined from the left calendering roller to the upper calendering roller direction, the lower left blocking plate 21 is inclined at the lower left, that is, it is inclined from the left calendering roller to the lower calendering roller direction, the lower right blocking plate 21 is inclined at the lower right, that is, it is inclined from the right calendering roller to the lower calendering roller direction, and the upper right blocking plate 21 is inclined at the upper right, and is inclined from the right calendering roller to the upper calendering roller direction. The blocking plate 21 is integrally connected to a mounting connecting plate 22 for mounting and connecting to the front side of the frame on one side in the clockwise direction. The mounting connecting plate 22 can be rectangular or roughly rectangular and has a mounting positioning hole 220 running through the front and back. The mounting positioning hole 220 is convenient for the mounting connecting plate 22 and the frame to be locked and fixed by bolts or the like. The shape of each blocking plate is generally irregular but similar to a rectangle, that is, there are some arc-shaped edges on the edges. Among them, the side close to the circular hole 20 is an arc-shaped edge, that is, the shape of the edge of the circular hole 20, and the position close to the semicircular recessed limiting groove 210 is also an arc-shaped edge, because a part of the groove edge of the semicircular recessed limiting groove 210 needs to be formed.

[0034] Preferably, the blocking plate 21 is integrally connected with a rearwardly extending reinforcing extension guide plate 23 on the edge of the hole near the passage hole 20, and all the reinforcing extension guide plates 23 are distributed at intervals in the circumferential direction and are in a circumferential array. The integral connection position of the reinforcing extension guide plate 23 is close to the arc-shaped edge of the blocking plate 21 near the passage hole 20, and the number of the reinforcing extension guide plates 23 and the blocking plate 21 is the same, and the positions are also one-to-one corresponding to each other. Here, the shape of the reinforcing extension guide plate 23 is preferably an arc shape as a whole, that is, the radial inner and outer sides are both arc-shaped, or at least the surface on the side close to the axis is arc-shaped, and the outer side can be a flat rectangle, and the curvature should be as consistent as possible with the curvature of the passage hole 20, so that the structural integration is better and it can be better used to remove metal chips. The surface of the reinforcing extension guide plate 23 on the side close to the axis and the edge of the passage hole 20 are kept as flat as possible. The role of the reinforcing extension guide plate 23 is to improve the structural strength, and it can also be used to better block metal chips through more structural optimization.

[0035] Preferably, the reinforced extension guide plate 23 is provided with air suction holes 230 extending radially in the front-to-back direction, and the air suction holes 230 extend circumferentially in a rectangular strip shape. An air suction duct 231 connected to the air suction holes 230 is provided on the outer side of the reinforced extension guide plate 23. The air suction duct 231 needs to be a metal pipe because it is necessary to absorb fine metal chips. Then, the size of the air suction holes 230 needs to be relatively small, for example, 2mm*4mm, with the long side in the circumferential direction and the wide side in the front-to-back direction. The size of the wide side is as small as possible. No more than 3 mm, and one exhaust duct 231 can correspond to multiple exhaust and dust suction holes 230, that is, the pipe mouth of one exhaust duct 231 will cover multiple exhaust and dust suction holes 230. Of course, the exhaust duct 231 is on the side of the exhaust and dust suction hole 230 away from the axis, or it can be said that it is on the radial outside of the reinforced extension guide plate 23. Of course, here, since the outer back of the reinforced extension guide plate 23 may be a plane or an arc surface, the outlet of the exhaust duct 231 here needs to match the shape of the side surface and be sealed. Multiple exhaust and dust suction holes 230 can be set, and the entire reinforced extension guide plate 23 can be in the shape of a filter screen. These exhaust and dust suction holes 230 are similar to filter holes, and the exhaust duct 231 can be connected to the existing exhaust equipment.

[0036] Furthermore, the reinforced extension guide plate 23 is located at the periphery of the calendering inscribed circle 1111, that is, there is a radial spacing gap between the reinforced extension guide plate 23 and the calendering inscribed circle 1111, so as not to affect the calendering after peeling, but this gap may occasionally have larger and longer metal chips entering, and during the calendering process, some large and small metal chips may appear if the peeling is not thorough. The small metal chips can be sucked away through the vacuum chip suction holes 230, and the large metal chips can be sucked by the aforementioned multiple vacuum chip suction holes 230 to the radial inner surface of the reinforced extension guide plate 23, and the blocking plate 21 can block most of the metal chips to the rear, but the above situation will still occur, so through optimization, the large metal chips that enter will not interfere with the calendering of the metal rod, but the large metal chips need to be dealt with in time, so the following optimization needs to be made, that is, the reinforced extension guide plate The rear side of 23 is provided with a cold air gun 4 which can blow forward and move along the inner surface of the reinforced extension guide plate 23. The cold air gun 4 is a pulse jet and the airflow crosses with the vacuum chip suction hole 230. The design of the cold air gun 4 can effectively blow away the metal chips forward, and due to the suction of the vacuum chip suction hole 230, it can play a buffering effect. The wind force of the cold air gun 4 is strong, and it can also blow out large metal chips forward more stably without rapidly blowing away the metal chips to cause some external interference, etc., and the cold air gun 4 has a cooling effect, so that the heat generated by peeling and calendering is partially taken away, which is also beneficial to production. The pulse jet is to reduce production interference and save costs, because it does not need to be blown all the time, and the probability of such large metal chips entering is relatively small. Because the front side can better block large metal chips, pulse jet will be more suitable, that is, intermittent jetting for a period of time, which can be adjusted in time according to the type and size of the metal rod being processed.

[0037] Preferably, the rear end of the reinforced extension guide plate 23 is integrally connected to a rear mounting connecting plate 24 that can be mounted on the rear side of the frame, so that the entire metal chip blocking structure is more three-dimensional, has good structural strength, and is more stable and reliable to use.

[0038] Furthermore, the reinforced extension guide plate 23 is formed with a wind guide reinforcement groove 40 which is arc-shaped downwardly concave and extends forward and backward for guiding the blowing of the cooling air gun 4 nozzle. This is for better wind transmission and also strengthens the structural strength. More than two wind guide reinforcement grooves 40 can be provided.

[0039] Preferably, the upper left blade head 31, the lower left blade head 32, the lower right blade head 33 and the upper right blade head 34 are installed on the front side of the frame through the blade handle 30. The installation connection of the blade head and the blade handle can adopt the existing structure. The blade handle 30 is also installed on the front side of the corresponding blade head with at least two front side pressing guide wheels 301 arranged front and back. The front side pressing guide wheels 301 at four positions press the outer side of the initial metal rod to transport it forward, which is more stable and reliable. In addition, the upper left blade head 31, the lower left blade head 32, the lower right blade head 33 and the upper right blade head 34 correspond to the corresponding blocking plate 21 front and back one by one, that is, the circumferential distribution of the above four blocking plates is consistent with the four blade heads, so that the blocking effect after peeling is relatively good.

[0040] When in use, a rolling device is required at the front side to drive the metal rod to roll, and the existing equipment can be used. Of course, there can also be an actively rotating roller in the calendering roller, because the knife head in the present application is fixed, and there is also a rotating knife holder in the prior art for peeling, and the main purpose is actually rotational peeling.

[0041] The structure of the frame can be realized in many ways. For example, an outer support frame is generally used, and four mounting frames 51 are embedded and fixed in the support frame. The four mounting frames 51 are respectively located at the upper left, lower left, lower right and upper right positions, and four mounting spaces 52 are formed between the mounting frames 51. These four mounting spaces 52 are respectively used for the four calendering rollers to be radially extended to the correct position and positioned, that is, the calendering rollers can be moved axially forward and backward and radially. The calendering rollers are installed on the radial inner side of the calendering inscribed circle 1111 of the shaft frame z. In addition, in the present application, it is preferred that a semicircular arc step z0 is formed on the shaft frame z of the calendering roller near the front end of the calendering roller, which can be used for radial insertion and matching with the semicircular concave limiting groove 210 for positioning. Of course, the mounting frame 51 can use an existing mold or frame and surround a large circular processing area in the middle.

[0042] Therefore, when installing the structure of the present application, it is necessary to first install and fix the chip blocking mechanism to the frame, and corresponding installation hole structures can be set at the front and rear positions of the four mounting frames 51. If the chip blocking mechanism has a structure with a blocking plate 21, a reinforced extension guide plate 23 and a rear side mounting connecting plate 24, since the positions of the blocking plate 21 and the rear side mounting connecting plate 24 are exactly intersecting in the circumferential direction, at this time, the installation space 52 is very useful. It does not matter if the blocking plate 21, the reinforced extension guide plate 23 and the rear side mounting connecting plate 24 are an integrated structure. The entire chip blocking mechanism moves from the front side of the frame to the rear, and the rear side mounting connecting plate 24 is located in the position of the installation space 52 and then moves backward. When the rear side mounting connecting plate 24 is behind the mounting frame 51, the entire chip blocking mechanism can rotate, and the blocking plate 21 is on the front side of the mounting frame 51. In this way, the blocking plate 21 and the rear side mounting connecting plate 24 can be fixed to the corresponding installation points on the front and rear sides of the mounting frame 51 by bolts or the like. Then, when installing the calender roller and the knife handle, the calender roller can be installed on the shaft frame z first, and the shaft frame z can be moved in the radial direction and the semicircular arc step z0 can be abutted against the semicircular concave limiting groove 210 to complete the positioning, and the shaft frame z can be fixed to two adjacent mounting frames 51 in the existing manner. The knife handle can also move in the radial direction, but the knife handle is on the front side of the mounting frame 51. The knife handle can move in the radial direction on the front side of the mounting frame 51, and when it reaches the predetermined position, it can be fixed to the front side of the mounting frame 51 in the existing manner. The front side of the mounting frame 51 can be provided with some installation adjustment slots or adjustment holes to facilitate the adjustment and installation of the knife handle, and the front side pressing guide wheel 301 and the knife head can be pre-installed on the knife handle. In this way, the basic installation of the entire structure is completed. When in operation, the metal rod enters the peeling inscribed circle 3333 from the front side to the back, and rotates to peel. The moving speed is relatively slow to ensure thorough peeling. The peeled metal segment enters the circumferential blocking ring 2 and then enters the calendering inscribed circle 1111 and moves forward for calendering and output. During this period, the entire chip blocking structure can block and process various metal chips, and the entire structure is also more helpful for calendering processing, which can produce high-quality metal rod final products, and efficiency and safety are also guaranteed.

[0043] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A metal rod peeling device, comprising a frame, characterized in that: The frame is also connected to a calendering assembly, which includes an upper calendering roller (11), a left calendering roller (12), a lower calendering roller (13) and a right calendering roller (14) axially arranged in the front-to-back direction. The upper calendering roller (11), the left calendering roller (12), the lower calendering roller (13) and the right calendering roller (14) are arranged in a circular array to form four upper, left, lower and right inscribed circle pressure points for calendering and shaping the metal rod after peeling. The four inscribed circle pressure points are located on the same calendering inscribed circle (1111) path. A peeling knife assembly for cutting the surface of the metal rod is arranged on the front side of the calendering assembly. A chip blocking mechanism for preventing metal chips generated during the peeling process from moving backwards is arranged between the front and back of the peeling knife assembly and the calendering assembly.

2. A metal rod peeling device according to claim 1, characterized in that: The chip blocking mechanism includes a circumferential blocking ring (2) located between the peeling knife assembly and the calendering assembly, and the circumferential blocking ring (2) can at least block 20% of the cross-sectional area of ​​the circumferential spacing region between two circumferentially adjacent calendering rollers, and the center of the circumferential blocking ring (2) is surrounded to form a passing circular hole (20) for the peeled metal rod to move backward, the aperture of the passing circular hole (20) is larger than the aperture of the calendering inscribed circle (1111), and the passing circular hole (20) and the calendering inscribed circle (1111) are coaxial.

3. A metal rod peeling device according to claim 2, characterized in that: The peeling knife assembly comprises an upper left knife head (31), a lower left knife head (32), a lower right knife head (33) and an upper right knife head (34); the upper left knife head (31), the lower left knife head (32), the lower right knife head (33) and the upper right knife head (34) are arranged in a circular array and form four inscribed circle peeling points for peeling the metal rod; the four inscribed circle peeling points are located on the same peeling inscribed circle (3333); the upper left knife head (31), the lower left knife head (32), the lower right knife head (33) and the upper right knife head (34) are arranged alternately with the upper calendering roller (11), the left calendering roller (12), the lower calendering roller (13) and the right calendering roller (14) in the circumferential direction.

4. A metal rod peeling device according to claim 2, characterized in that: The circumferential blocking ring (2) is formed with four blocking plates (21) connected in an integral manner in the circumferential direction, namely, the upper left, lower left, lower right and upper right. The plate surfaces of the blocking plates (21) face the front-rear direction, and the integrally connected parts between two circumferentially adjacent blocking plates (21) form a semicircular concave limiting groove (210) that is concave toward the axis for positioning each calendering roller.

5. A metal rod peeling device according to claim 4, characterized in that: The upper left blocking plate (21) is inclined at the upper left, the lower left blocking plate (21) is inclined at the lower left, the lower right blocking plate (21) is inclined at the lower right, and the upper right blocking plate (21) is inclined at the upper right. A mounting connecting plate (22) for mounting and connecting with the front side of the frame is integrally connected to one side of the blocking plate (21) in the clockwise direction.

6. A metal rod peeling device according to claim 5, characterized in that: The blocking plate (21) is integrally connected to a rearwardly extending reinforcing extension guide plate (23) at a portion of the hole edge of the circular passage hole (20), and all the reinforcing extension guide plates (23) are distributed at intervals in the circumferential direction and are in a circumferential array.

7. A metal rod peeling device according to claim 6, characterized in that: The reinforced extension guide plate (23) is provided with air suction holes (230) extending radially in the front-to-back direction, and the air suction holes (230) extend circumferentially in the shape of rectangular strips. An air suction duct (231) connected to the air suction holes (230) is provided on the outer side of the reinforced extension guide plate (23).

8. A metal rod peeling device according to claim 7, characterized in that: The reinforced extension guide plate (23) is located outside the calendering inscribed circle (1111), and a cold air gun (4) is provided on the rear side of the reinforced extension guide plate (23) to blow forward along the inner surface of the reinforced extension guide plate (23). The cold air gun (4) is a pulse jet and the airflow crosses the vacuum chip suction hole (230).

9. A metal rod peeling device according to claim 8, characterized in that: The rear end of the reinforced extension guide plate (23) is integrally connected to a rear mounting connecting plate (24) that can be mounted on the rear side of the frame, and the reinforced extension guide plate (23) is formed with a wind guide reinforcement groove (40) that is concave in an arc shape downward and extends forward and backward for guiding the nozzle of the cooling air gun (4) to blow air.

10. The metal rod peeling device according to claim 3, characterized in that: The upper left cutter head (31), the lower left cutter head (32), the lower right cutter head (33) and the upper right cutter head (34) are mounted on the front side of the frame via a cutter handle (30); at least two front side pressing guide wheels (301) arranged front to back are also mounted on the cutter handle (30) at the front side of the corresponding cutter head; the upper left cutter head (31), the lower left cutter head (32), the lower right cutter head (33) and the upper right cutter head (34) correspond to the corresponding blocking plate (21) front to back.

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