Anchor rod disc cut-off tool

Abstract

The utility model discloses an anchor rod disc cut-off tool which is characterized in that the anchor rod disc cut-off tool comprises a cut-off tool lower die, a lower die top groove is formed in the top of the cut-off tool lower die, a cut-off tool upper die is arranged on the top of the cut-off tool lower die, the bottom of the cut-off tool upper die is matched with the lower die top groove, and the cut-off tool upper die can rotate in the lower die top groove; the cut-off tool lower die and the cut-off tool upper die are connected through a connecting rod and a spring; a cutting edge groove is formed in one side of the top of the cut-off tool upper die, a cutting edge matched with the cutting edge groove is arranged in the cutting edge groove, and the top of the cutting edge is exposed out of the cutting edge groove. The cutting edge is a polygonal prism, and each long side of the prism is edged; by means of the device, the gap between the cutting edge of the cut-off tool and the upper die base of the die is automatically and accurately adjusted, the shearing rate of anchor rod disc raw materials is increased, the damage rate of the cutting edge is reduced, the finished product obtaining rate of anchor rod discs is increased, the cutting edge can be used repeatedly and can also be replaced independently, the maintenance cost is saved, time and labor are saved, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the stamping field, concretely relates to a kind of anchor rod disc cutting knife. BACKGROUND

[0002] Anchor rod disc is an important component in mine anchor rod supporting system, and the demand for anchor rod disc is large in mine production, so mold for making anchor rod disc is often set in mine.The traditional anchor rod disc mold includes mold upper die holder, mold lower die holder and cutting knife, the mold upper die holder corresponds with the mold lower die holder, and the cutting knife is located on one side of the mold lower die holder.When using, anchor rod disc raw material is fed to the top of the mold lower die holder, the mold upper die holder is punched down to press the anchor rod disc raw material on the mold lower die holder, and the anchor rod disc raw material is cut under the shearing action of the mold upper die holder and the cutting knife.After the mold upper die holder rises, the anchor rod disc product is pushed out of the mold lower die holder after the anchor rod disc raw material is fed again, so that the production of an anchor rod disc is completed.

[0003] The above-mentioned anchor rod disc production process has the following problems: (1) the gap between the cutting knife and the mold upper die holder is related to the thickness of the anchor rod disc raw material.When the anchor rod disc raw material is thin, the gap between the cutting knife and the mold upper die holder should be small;when the anchor rod disc raw material is thick, the gap between the cutting knife and the mold upper die holder should be appropriately increased.The gap between the cutting knife and the mold upper die holder can only be manually adjusted by artificial, which is neither accurate nor safe.When the adjusted gap is too large, the anchor rod disc raw material cannot be completely cut, but only bent;when the adjusted gap is too small, the mold upper die holder and the cutting knife will collide, thereby damaging the cutting edge of the cutting knife.(2) the traditional cutting knife is of an integral structure, so the cutting knife needs to be replaced as a whole when the cutting edge is damaged, which is time-consuming and laborious, and affects the smooth operation of anchor rod disc production. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of anchor rod disc cutting knife, and the technical problems to be solved are realized the automatic accurate adjustment of the gap between the cutting edge of the cutting knife and the mold upper die holder, improve the shearing rate of anchor rod disc raw material, reduce the damage rate of cutting edge, improve the finished product acquisition rate of anchor rod disc, and cutting edge can be used repeatedly, also can be replaced individually, save maintenance cost, save time and labor, improve work efficiency.

[0005] To solve this technical problem, the utility model adopts the following technical scheme:

[0006] A kind of anchor rod disc cutting knife, it includes cutting knife lower die, the top of cutting knife lower die is equipped with cutting knife upper die, the bottom of cutting knife upper die is matched with the top of cutting knife lower die, and cutting knife upper die can rotate in the top of cutting knife lower die;

[0007] The lower die of the cutting knife is connected with the upper die of the cutting knife through a connecting rod and a spring, one end of the connecting rod is fixed beside the upper die of the cutting knife, and the other end is slidably connected with the side of the lower die of the cutting knife; the spring is located inside the cutting knife and is used for elastically arranging the upper die of the cutting knife on the top of the lower die of the cutting knife.

[0008] A blade groove is formed on one side of the top of the upper die of the cutting knife, and a blade matched with the blade groove is arranged in the blade groove, and the top of the blade is exposed outside the blade groove; the blade is a polygonal prism, and each long side of the prism is provided with a blade.

[0009] Preferably, one upper die connecting rod bolt fixing hole is arranged on each side of the upper die of the cutting knife, one lower die connecting rod bolt fixing hole is arranged on each side of the lower die of the cutting knife, the upper die connecting rod bolt fixing holes and the lower die connecting rod bolt fixing holes are one-to-one corresponding, the connecting rod has two, the upper end of each connecting rod is provided with a round hole, and the lower end of each connecting rod is provided with a long hole; the upper end of each connecting rod is fixed in the upper die connecting rod bolt fixing hole through a bolt penetrating through the round hole, and the lower end of each connecting rod is slidably connected in the lower die connecting rod bolt fixing hole through a bolt penetrating through the long hole.

[0010] Further preferably, a gasket is arranged between the upper die of the cutting knife and the connecting rod, and between the connecting rod and the head of the bolt.

[0011] Preferably, two upper die spring holes are longitudinally formed in the upper die of the cutting knife, and one lower die spring hole is formed in the lower die of the cutting knife at a position corresponding to each upper die spring hole; a spring is arranged in each lower die spring hole, one end of the spring is fixed at the bottom of the lower die spring hole, and the other end is fixed at the top of the corresponding upper die spring hole.

[0012] Preferably, the lower die top groove is an inverted trapezoid, the two sides of the lower die top groove are symmetrical lower die arc surfaces, and the bottom of the lower die top groove is a lower die top plane; the bottom of the upper die of the cutting knife is an upper die bottom plane; the two sides of the upper die bottom of the cutting knife are upper die arc surfaces matched with the lower die arc surfaces.

[0013] Preferably, a mounting threaded hole is horizontally and transversely arranged on the lower die of the cutting knife.

[0014] The positive effect of the utility model lies in:

[0015] Firstly, the cutting knife is arranged in a structure of upper and lower parts, and the upper die of the cutting knife is arranged in a structure of flexible rotation, so that the blade can be rotated to a proper position according to the thickness of the anchor rod disc raw material, thereby accurately adjusting the gap between the blade and the upper die seat of the mold, improving the shearing rate of the anchor rod disc raw material, reducing the damage rate of the blade, improving the finished product yield of the anchor rod disc, saving time and effort, and improving the work efficiency.

[0016] Second, the utility model discloses a replaceable cutting edge, save maintenance cost, further save time and effort, improve work efficiency, through the cutting edge is set to polygonal prism, every edge can be used as cutting edge, can through the adjustment cutting edge angle to realize multiple use, further reduce maintenance cost.

[0017] Third, the utility model discloses a spring is arranged between the cutting off upper die and cutting off lower die, can together with the rigid vibration (the cutting surface of the anchor rod disc raw material still has a small amount of adhering burr) of the stamping forming anchor rod disc finished product from the die lower die seat and is bounced up when the cutting off upper die is bounced up, avoids the anchor rod disc and is adsorbed on the die lower die seat, influences the subsequent anchor rod disc raw material feeding, improves the fluency of anchor rod disc operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram when the upper die and lower die of the utility model anchor rod disc mould are separated;

[0019] Figure 2 It is the overall structure schematic diagram when the upper die and lower die of the utility model anchor rod disc mould are contacted;

[0020] Figure 3 It is the overall structure schematic diagram of the utility model;

[0021] Figure 4 It is the overall structure perspective view of the utility model;

[0022] Figure 5 It is the lower die structure schematic diagram of the utility model;

[0023] Figure 6 It is the upper die structure schematic diagram of the utility model;

[0024] Figure 7 It is the connecting rod structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0026] As Figure 1 And Figure 2As shown, the utility model lies in the left side of mould lower die seat 22, mould lower die seat 22 is located at the top of anchor rod disc mould base 23, the upper side of mould lower die seat 22 is equipped with mould upper die seat 21 correspondingly.

[0027] As Figures 3 to 7 As shown, the utility model includes cutting knife lower die 1, cutting knife lower die 1 is 205mm long, 35mm thick. Two mounting threaded holes 8 are provided on cutting knife lower die 1 along the left-right direction transversely, and the thread specifications are all M16x2mm, and the two mounting threaded holes 8 are arranged symmetrically on cutting knife lower die 1 along the front-rear direction. By setting the mounting threaded hole 8, cutting knife lower die 1 can be fixed to the left side of mould lower die seat 22 and the top of anchor rod disc mould base 23.

[0028] The top of cutting knife lower die 1 is provided with an inverted trapezoidal lower die top groove 13, and the height of the left and right sides of cutting knife lower die 1 is 60mm, and the height of the middle is 40mm. The left and right sides of the lower die top groove 13 are symmetrical lower die curved surfaces 11 (the radius of the circular arc of the cross section is 42.5mm), and the bottom of the lower die top groove 13 is a lower die top plane 12 (205mm long, 25mm wide). The top of cutting knife lower die 1 is provided with cutting knife upper die 2, and the length of cutting knife upper die 2 is 205mm, and the thickness is 35mm. The bottom of cutting knife upper die 2 is an upper die bottom plane 16 (205mm long, 25mm wide), and the left and right sides of the bottom of cutting knife upper die 2 are upper die curved surfaces 15 matched with the lower die curved surfaces 11 (the radius of the circular arc of the cross section is 42.5mm), and the height of the left and right sides of cutting knife upper die 2 is 20mm, and the height of the middle is 40mm.

[0029] One side of the top of cutting knife upper die 2 is provided with a blade groove 18, and a blade 3 matched with the blade groove 18 is arranged in the blade groove 18. The cross section of the blade groove 18 is an incomplete hexagon, the diameter of the inscribed circle of the hexagon is 10mm, and the top of the blade 3 is exposed outside the blade groove 18. By setting the replaceable blade 3, the maintenance cost is saved, time and labor are further saved, and the work efficiency is improved. The blade 3 is a hexagonal prism, the diameter of the inscribed circle of the cross section is 10mm, the length is 205.02-205.06mm, and each long side of the prism is sharpened, so that the same blade 3 can be used multiple times by adjusting the angle, and the maintenance cost is further reduced.

[0030] The bottom of the cutting knife upper die 2 is matched with the lower die top groove 13, the lower die top groove 13 plays a role of adjusting and guiding the cutting knife upper die 2, and the cutting knife upper die 2 can rotate in the lower die top groove 13 by a certain angle. If the anchor rod disc raw material is relatively thin, the cutting knife upper die 2 hardly rotates, and the cutting knife upper die 2 is vertically matched with the die upper die seat 21 to perform shearing; if the anchor rod disc raw material is relatively thick, the cutting knife upper die 2 will rotate counterclockwise by a certain angle relative to the connecting rod 6, and the cutting knife upper die 2 will be matched with the die upper die seat 21 at the rotated position to perform shearing.

[0031] By setting the cutting knife as an upper and lower split structure and setting the cutting knife upper die 2 as a flexible and rotatable structure, the blade 3 can rotate to a proper position according to the thickness of the anchor rod disc raw material, thereby accurately adjusting the gap between the blade 3 and the die upper die seat 21, improving the shearing rate of the anchor rod disc raw material, reducing the damage rate of the blade 3, improving the obtaining rate of the anchor rod disc finished product, saving time and effort, and improving work efficiency.

[0032] The cutting knife lower die 1 and the cutting knife upper die 2 are connected through the connecting rod 6 and the spring 4.

[0033] The front and rear sides of the cutting knife upper die 2 are respectively provided with an upper die connecting rod bolt fixing hole 17 (a hole diameter of 6 mm), the front and rear sides of the cutting knife lower die 1 are respectively provided with a lower die connecting rod bolt fixing hole 10 (a hole diameter of 6 mm), and the upper die connecting rod bolt fixing hole 17 corresponds to the lower die connecting rod bolt fixing hole 10. Each connecting rod 6 is provided with a round hole 19 (an inner diameter of 6.5 mm) at the upper end and a long hole 20 (the diameter of the two sides of the circle is 9 mm, and the center distance of the circle is 10 mm) at the lower end. The upper end of each connecting rod 6 is fixed in the upper die connecting rod bolt fixing hole 17 through the bolt 7 (a thread specification of M6x1, and a wire length of 26 mm), and the lower end of each connecting rod 6 is slidably connected in the corresponding lower die connecting rod bolt fixing hole 10 through the bolt 7 (a thread specification of M6x1, and a wire length of 26 mm). The cutting knife upper die 2 and the connecting rod 6, and the bolt head of the connecting rod 6 and the bolt 7 are all provided with a gasket 5, each gasket 5 has an inner diameter of 6 mm, an outer diameter of 15.6 mm, and a thickness of 3 mm.

[0034] The spring 4 has two rectangular springs 4, the outer diameter is 16mm, the inner diameter is 10mm, and the free height is 52mm. The two springs 4 are located in the cutting knife, and are used for enabling the cutting knife upper die 2 to be elastically arranged on the top of the cutting knife lower die 1. The cutting knife upper die 2 is longitudinally provided with two upper die spring holes 14 (the hole diameter is 20mm, and the depth is 22mm) in the front-rear direction, the cutting knife lower die 1 is provided with one lower die spring hole 9 (the hole diameter is 20mm, and the depth is 20mm) at the position corresponding to the upper die spring hole 14, and the spring 4 is arranged in the lower die spring hole 9. One end of each spring 4 is fixed to the bottom of the lower die spring hole 9, and the other end is fixed to the top of the upper die spring hole 14.

[0035] By arranging the spring 4 between the cutting knife upper die 2 and the cutting knife lower die 1, when the cutting knife upper die 2 is upwardly popped up, the anchor rod disc product formed by stamping can be popped up from the mold lower die seat 22 by rigid vibration (a small amount of burrs are adhered on the cutting surface of the anchor rod disc raw material), so that the anchor rod disc is prevented from being adsorbed on the mold lower die seat 22, the subsequent anchor rod disc raw material feeding is not affected, and the smoothness of the anchor rod disc operation is improved.

[0036] The working principle of the anchor rod disc cutting knife is as follows:

[0037] First, the bolt is used to pass through the two mounting threaded holes 8, the anchor rod disc mold base 23 is mounted on the top of the anchor rod disc mold base 23, the gap between the cutting knife upper die 2 and the mold upper die seat 21 is adapted to the distance of shearing the thin anchor rod disc raw material.

[0038] The feeding device is started, the anchor rod disc raw material is fed to the top of the mold lower die seat 22, the mold upper die seat 21 is downwardly pressed, the anchor rod disc raw material is pressed on the mold lower die seat 22 and is formed by stamping. Under the indirect pressure of the mold upper die seat 21 pressing the anchor rod disc raw material, the cutting knife upper die 2 moves downwardly until the bottom of the cutting knife upper die 2 contacts the cutting knife lower die 1, the spring 4 is compressed, and the connecting rod 6 slides downwardly relative to the cutting knife lower die 1.

[0039] At this time, if the anchor rod disc raw material is thin, the cutting knife upper die 2 hardly rotates, and the cutting knife upper die 2 is vertically combined with the mold upper die seat 21 to shear; if the anchor rod disc raw material is thick, the cutting knife upper die 2 rotates counterclockwise by a certain angle relative to the connecting rod 6, and the cutting knife upper die 2 is combined with the mold upper die seat 21 to shear at the rotated position (during the shearing process, the blade 3 rotates clockwise relative to the connecting rod 6).

[0040] After the mold upper die seat 21 rises, the cutting knife upper die 2 also moves upwardly after the pressure is released until the spring 4 restores the elastic deformation, the cutting knife upper die 2 is separated from the cutting knife lower die 1, the connecting rod 6 slides upwardly relative to the cutting knife lower die 1, and the cutting knife upper die 2 rotates to the original vertical state.

[0041] When the upper die of the cutting-off cutter is bounced up, the stamping molded anchor rod disc product can be bounced up from the lower die seat 22 together with a small amount of adhered burrs on the cutting surface of the anchor rod disc raw material, and the finished anchor rod disc product is pushed out of the lower die seat 22 with the anchor rod disc raw material being reloaded, so as to complete the production of one anchor rod disc.

[0042] When the cutting edge 3 needs to be replaced, the end (front end or rear end) of the cutting edge 3 is knocked out of the cutting edge groove 18 by a copper rod, and then the cutting edge 3 is installed back into the cutting edge groove 18 after being rotated by a certain angle. When all the edges of the cutting edge 3 are worn out, a new hexagonal cutting edge 3 can be replaced.

[0043] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions described in the foregoing examples can still be modified, or some technical features can be replaced by equivalents. These modifications or replacements do not change the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A rock bolt disc cutting knife characterized in that: it comprises a cutting knife lower die (1), the top of the cutting knife lower die (1) is provided with a lower die top groove (13), the top of the cutting knife lower die (1) is provided with a cutting knife upper die (2), the bottom of the cutting knife upper die (2) is matched with the lower die top groove (13), and the cutting knife upper die (2) can rotate in the lower die top groove (13); the cutting knife lower die (1) and the cutting knife upper die (2) are connected through connecting rods (6) and springs (4), one end of the connecting rod (6) is fixed beside the cutting knife upper die (2), the other end is slidably connected with the side of the cutting knife lower die (1), and the spring (4) is located in the cutting knife and is used to elastically arrange the cutting knife upper die (2) on the top of the cutting knife lower die (1). the top of the cutting knife upper die (2) is provided with a blade groove (18) on one side, the blade groove (18) is provided with a blade (3) matched therewith, and the top of the blade (3) is exposed outside the blade groove (18); the blade (3) is a polygonal prism, and each long side of the prism is provided with a blade.

2. A roof bolting disc shear as claimed in claim 1 wherein: both sides of the cutting knife upper die (2) are respectively provided with an upper die connecting rod bolt fixing hole (17), both sides of the cutting knife lower die (1) are respectively provided with a lower die connecting rod bolt fixing hole (10), the upper die connecting rod bolt fixing hole (17) corresponds to the lower die connecting rod bolt fixing hole (10) in a one-to-one manner, the connecting rod (6) has two, the upper end of each connecting rod (6) is provided with a round hole (19), and the lower end of each connecting rod (6) is provided with a long hole (20); the upper end of each connecting rod (6) is fixed in the upper die connecting rod bolt fixing hole (17) through the round hole (19) and the bolt (7), and the lower end of each connecting rod (6) is slidably connected in the lower die connecting rod bolt fixing hole (10) through the long hole (20) and the bolt (7).

3. A roof bolting disc shear as claimed in claim 2 wherein: a gasket (5) is arranged between the cutting knife upper die (2) and the connecting rod (6) and between the connecting rod (6) and the head of the bolt (7).

4. A roof anchor disc cutoff knife according to claim 1, wherein: two upper die spring holes (14) are longitudinally arranged in the cutting knife upper die (2), and one lower die spring hole (9) is arranged in the cutting knife lower die (1) at a position corresponding to the upper die spring hole (14); the lower die spring hole (9) is provided with the spring (4), one end of the spring (4) is fixed at the bottom of the lower die spring hole (9), and the other end is fixed at the top of the upper die spring hole (14) corresponding thereto.

5. A roof anchor disc cutoff knife according to claim 1, wherein: the lower die top groove (13) is in the shape of an inverted trapezoid, the two sides of the lower die top groove (13) are symmetrical lower die arc surfaces (11), and the bottom of the lower die top groove (13) is a lower die top plane (12); the bottom of the cutting knife upper die (2) is an upper die bottom plane (16); the two sides of the bottom of the cutting knife upper die (2) are upper die arc surfaces (15) matched with the lower die arc surfaces (11).

6. A roof anchor disc cutting tool according to any one of claims 1-5, characterized in that: the cutting knife lower die (1) is provided with a mounting threaded hole (8) penetrating transversely.

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