CN217727001U - Self-drilling type hollow anchor rod processing equipment - Google Patents
Self-drilling type hollow anchor rod processing equipment Download PDFInfo
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- CN217727001U CN217727001U CN202221708491.1U CN202221708491U CN217727001U CN 217727001 U CN217727001 U CN 217727001U CN 202221708491 U CN202221708491 U CN 202221708491U CN 217727001 U CN217727001 U CN 217727001U
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Abstract
The utility model discloses a self-drilling hollow anchor rod processing device, which comprises a feeding unit (1), a boosting unit (2), a heating unit (3), a thread rolling unit (4) and a discharging unit (5) which are connected in sequence; the feeding unit (1) consists of a feeding frame (1-1), a feeding frame (1-2), a feeding mechanism (7) and a material turning mechanism (8); the boosting unit (2) consists of a boosting rack (2-5), boosting grooved wheels (2-9), a second motor (2-4), a pressing device and a second set of feeding mechanism (7), and the heating unit (3) consists of a heating rack (3-4), a third set of feeding mechanism (7) and an electric heating furnace (3-1); the thread rolling unit (4) is composed of a three-axis thread rolling machine; the discharging unit (5) consists of a discharging rack (5-1), a discharging rack (5-2), a fourth set of feeding mechanism (7) and a second set of material turning mechanism (8).
Description
Technical Field
The utility model relates to a from boring formula cavity stock processing equipment belongs to drilling tool production facility.
Background
The self-drilling hollow anchor rod is an important component of the self-drilling anchor, integrates the functions of drilling, grouting, anchoring and the like, and can be widely used for the projects of tunnel advance support, radial support, slope reinforcement, roadbed reinforcement and the like.
Self-drilling hollow bolts are typically made of thick-walled seamless steel tubing with wave threads on the surface. At present, the production facility of self-drilling formula cavity stock mainly includes electrical heating equipment and thread rolling equipment, generally adopt artifical pay-off in the course of working, not only the work is strong big, low efficiency, and because it keeps unanimous to guarantee every seamless steel pipe feeding speed in the heating process to be difficult to guarantee moreover, the heating temperature of every seamless steel pipe and the heating temperature at the different length positions of same seamless steel pipe are difficult to control, and then lead to the quality of self-drilling formula cavity stock to be difficult to obtain the assurance, await urgent need to improve.
Disclosure of Invention
To the above-mentioned defect that prior art exists, the utility model aims at providing a little, the production efficiency height of intensity of labour, the good self-drilling formula cavity stock processing equipment of product quality uniformity.
In order to achieve the above purpose, the utility model adopts the following technical scheme: it comprises a thread rolling unit connected with the outlet end of the heating unit; the feeding unit is connected with the inlet end of the heating unit through the boosting unit, and the outlet end of the thread rolling unit is connected with the discharging unit.
The feeding unit consists of a feeding frame connected with the feeding frame, a feeding mechanism arranged on the feeding frame and a material turning mechanism. Wherein: the feeding mechanism consists of a plurality of grooved wheels which are respectively arranged on the table top of the feeding frame, duplex chain wheels which are fixed on the table top of the feeding frame and are respectively correspondingly connected with the grooved wheels, and a first motor which is fixed on the feeding frame and drives the duplex chain wheels to rotate through a chain. The material turning plate is of a wedge-shaped structure, the large head end of the material turning plate points to the feeding frame, and the table top on one side of the feeding frame is close to and inclines downwards.
The boosting unit consists of two boosting sheaves supported on the table top of the boosting rack, two second motors fixed on the boosting rack and driving the corresponding boosting sheaves to rotate, pressing devices respectively positioned above the boosting sheaves and a second set of feeding mechanism arranged on the table top of the boosting rack, wherein each pressing device consists of two door-shaped frames fixed on the table top of the boosting rack, pressing plates respectively arranged on the door-shaped frames, adjusting screws arranged on the door-shaped frames and movably connected with the pressing plates, springs arranged on the adjusting screws and used for pressing the pressing plates downwards and pressing sheaves supported on the back of the pressing plates; each door-shaped frame consists of two guide posts fixed on the table surface of the boosting machine frame and a cross beam fixed on the two guide posts, and two ends of the pressing plate are respectively installed on the corresponding guide posts.
The heating unit is composed of a third set of feeding mechanism arranged on the heating rack and two electric heating furnaces fixedly arranged on the table surface of the heating rack, and each electric heating furnace and each grooved pulley are arranged at intervals.
The thread rolling unit is composed of a three-axis thread rolling machine.
The discharging unit consists of a discharging frame connected with the discharging rack from the side surface, a fourth set of feeding mechanism and a second set of material turning mechanism which are arranged on the discharging rack, the small end of the material turning plate points to the discharging rack, and the table top of one side of the discharging rack far away from the discharging rack inclines downwards.
In the technical scheme, each grooved wheel shaft in each set of feeding mechanism and the movement direction of the seamless steel tube form an included angle delta larger than 90 degrees.
In the above technical scheme, each sheave shaft in the second set of feeding mechanism is a hollow blind hole shaft, and the free end of each blind hole shaft is connected with a cooling water pipe.
In the technical scheme, a plurality of guide sleeves are arranged on the table surface of the boosting unit, and each guide sleeve and each grooved wheel in the fourth set of feeding mechanism are arranged at intervals; the inlet end of the first electric heating furnace and the outlet end of the second electric heating furnace are respectively provided with a guide sleeve fixed on the table surface of the heating frame.
In the technical scheme, a temperature sensor fixed on the table surface of the heating rack is arranged at the outlet of the second electric heating furnace.
Among the above-mentioned technical scheme, the mesa of material loading frame is fixed with a photoelectric sensor.
In the above technical scheme, the table-board of the discharging machine frame is fixed with the second photoelectric sensor.
In the above technical scheme, the feeding mechanism, the second set of feeding mechanism, the third set of feeding mechanism and the fourth set of feeding mechanism have the same structure, and the material turning mechanism and the second set of material turning mechanism have the same structure.
Compared with the prior art, the utility model discloses owing to adopted above-mentioned technical scheme, consequently have following advantage:
1) Because the automatic feeding unit is additionally arranged at the front end of the heating unit and the automatic discharging unit is additionally arranged at the rear end of the thread rolling unit, automatic feeding and discharging can be realized, the labor intensity is reduced, the production efficiency is improved, and workpieces (seamless steel tubes) can continuously pass through the heating unit at a constant speed through the feeding mechanism, so that the workpieces and all sections of the workpieces are uniformly heated, and the product quality is further ensured.
2) Because the boosting unit is additionally arranged between the feeding unit and the thread rolling unit, the defect of inconsistent feeding speed caused by relative sliding between a workpiece (seamless steel pipe) and a grooved pulley can be effectively overcome, and the production continuity is ensured; but also can straighten the workpiece through a pressing device, thereby improving the product quality.
3) Because the guide sleeves are additionally arranged on the boosting unit and the heating unit, the advancing route of the workpiece can be accurately guided, and the workpiece is effectively prevented from deviating.
4) Because a plurality of photoelectric sensors and temperature sensors are arranged on the whole production line, the PLC real-time automatic control can be effectively realized, so that the efficiency and the product quality are further improved, and the production beat is ensured to be continuously, stably and orderly carried out.
Drawings
Fig. 1 is a schematic plan view of the present invention;
FIG. 2 is a front view of the feeding unit of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a right side view of FIG. 2;
fig. 5 is a top view of the feeding mechanism of the present invention;
fig. 6 is a schematic structural view of the material turning mechanism before turning;
fig. 7 is a schematic structural view of the material turning mechanism in the turning state;
FIG. 8 is a left side view of FIG. 6;
FIG. 9 is a left side view of FIG. 7;
FIG. 10 is a schematic perspective view of a material turning plate of the material turning mechanism of the invention;
FIG. 11 is a schematic perspective view of the guide sleeve of the present invention;
FIG. 12 is a front view of the boosting unit of the present invention;
FIG. 13 is a top view of FIG. 12;
FIG. 14 is a left side view of FIG. 12;
FIG. 15 is a front view of a heating unit of the present invention;
FIG. 16 is a top view of FIG. 15;
FIG. 17 is a top view of the thread rolling unit of the present invention;
figure 18 is a front view of the discharge unit of the present invention;
FIG. 19 is a top view of FIG. 18;
fig. 20 is a right side view in fig. 18.
In the figure: the device comprises a feeding unit 1, a feeding rack 1-2 and a first photoelectric sensor 1-3;
the device comprises a boosting unit 2, a pressure plate 2-1, a cross beam 2-2, a hand wheel 2-3, a second motor 2-4, a boosting frame 2-5, an adjusting screw 2-6, a spring 2-7, a guide column 2-8, a boosting grooved pulley 2-9 and a pressing grooved pulley 2-10;
the device comprises a heating unit 3, an electric heating furnace 3-1, a cooling water pipe 3-2, a temperature sensor 3-3 and a heater frame 3-4;
a thread rolling unit 4;
the device comprises a discharging unit 5, a discharging rack 5-1, a discharging rack 5-2 and a second photoelectric sensor 5-3;
a seamless steel pipe 6;
the device comprises a feeding mechanism 7, a bearing seat 7-1, a grooved pulley 7-2, a chain 7-3, a first motor 7-4, a duplex chain wheel 7-5 and a universal coupling 7-6;
the device comprises a material turning mechanism 8, a material turning plate 8-1, a connecting rod frame 8-2, a cylinder 8-3, a hinged support 8-4 and a swing rod 8-5;
and a guide sleeve 9.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1: the utility model discloses a thread rolling unit 4 that links up with heating unit 3 exit end, material loading unit 1 links up through the entry end of boosting unit 2 with heating unit 3, thread rolling unit 4's exit end links up with unloading unit 5. Wherein:
the structure of the feeding unit 1 is shown in fig. 2-4, and the feeding unit is composed of a feeding frame 1-2 connected with a feeding frame 1-1 from the side, a feeding mechanism 7 arranged on the feeding frame 1-1 and a material turning mechanism 8. The structure of the feeding mechanism 7 is shown in fig. 2-5, and the feeding mechanism is composed of a plurality of grooved pulley shafts (not shown in the figures) supported on the table top of the feeding rack 1-1 through a plurality of pairs of bearing seats 7-1, grooved pulleys 7-2 fixed on the grooved pulley shafts respectively, a plurality of duplex sprockets 7-5 supported on the table top of the feeding rack 1-1 through a plurality of pairs of other bearing seats 7-1, and first motors 7-4 fixed on the feeding rack 1-1 and driving the duplex sprockets 7-5 to rotate through chains 7-3, wherein sprocket shafts (not shown in the figures) of the duplex sprockets 7-5 are connected with the corresponding grooved pulley shafts through universal couplings 7-6. The structure of the material turning mechanism 8 is shown in figures 2-4 and 6-10, and the material turning mechanism is composed of a plurality of material turning plates 8-1 which are respectively arranged on the table top of a feeding rack 1-1 through hinged supports 8-4 and are in a wedge shape, swing rods 8-5 fixed on the material turning plates 8-1, connecting rod frames 8-2 respectively hinged with the swing rods 8-5, and air cylinders 8-3 hinged on the feeding rack 1-1 and hinged with the connecting rod frames through piston rods of the air cylinders, wherein the large end of each material turning plate 8-1 points to the feeding rack 1-2, and the table top of one side of the feeding rack close to the feeding rack 1-1 is inclined downwards.
The length and the course of the seamless steel pipe 6 are long, and therefore the frictional resistance is large. In order to avoid the inconsistency of the feeding speed caused by the relative sliding between the seamless steel tube 6 and the grooved wheel 7-2, the production continuity is ensured; a booster unit 2 as shown in fig. 12 to 14 is arranged between the charging unit 1 and the heating unit 3. The boosting unit is composed of two boosting grooved wheels 2-9 which are supported on the table top of a boosting frame 2-5 through two pairs of bearing seats 7-1, two second motors 2-4 which are fixed on the table top of the boosting frame 2-5 and drive the boosting grooved wheels 2-9 to rotate, a pressing device which is positioned above the boosting grooved wheels 2-9, and a second set of feeding mechanism 7 (see figure 5) which is arranged on the table top of the boosting frame 2-5. The pressing device consists of two door-shaped frames fixed on the table top of the boosting frame 2-5, pressing plates 2-1 respectively arranged on the door-shaped frames, adjusting screws 2-6 arranged on the door-shaped frames and movably connected with the pressing plates 2-1, springs 2-7 arranged on the adjusting screws and used for tightly pressing the pressing plates 2-1 downwards, and pressing grooved wheels 2-10 supported on the back surfaces of the pressing plates 2-1; each door-shaped frame is composed of two guide posts 2-8 fixed on the table surface of the boosting frame 2-5 and a cross beam 2-2 fixed on the two guide posts 2-8, and two ends of the pressure plate 2-1 are respectively installed on the corresponding guide posts 2-8 through guide holes (not shown in the figure). In order to facilitate the operation of the pressing device, hand wheels 2-3 are fixed at the top ends of the adjusting screws 2-6.
The structure of the heating unit 3 is shown in fig. 15-16, and the heating unit is composed of a third set of feeding mechanism 7 arranged on the heater frame 3-4 and two electric heating furnaces 3-1 fixedly arranged on the table surface of the heater frame 3-4, wherein each electric heating furnace 3-1 and each grooved pulley 7-2 are arranged at intervals.
The thread rolling unit 4 is constructed as shown in fig. 17, and is constituted by a three-axis thread rolling machine.
The structure of the discharging unit 5 is shown in fig. 18-20, and the discharging unit is composed of a discharging frame 5-2 connected with the discharging frame 5-1 from the side, a fourth set of feeding mechanism 7 and a second set of material turning mechanism 8 which are arranged on the discharging frame 5-1, wherein the small head end of the material turning plate 8-1 points to the discharging frame 5-2, and the table top of the discharging frame far away from the discharging frame 5-1 inclines downwards.
In order to avoid the seamless steel tube 6 from shaking in the V-shaped groove of the grooved wheel 7-2, an included angle delta larger than 90 degrees is formed between each grooved wheel shaft in each set of feeding mechanism 7 and the moving direction of the seamless steel tube 6, so that the seamless steel tube 6 can be always kept in a contact state with two side walls of the V-shaped groove of the grooved wheel 7-2 in the moving process.
In this embodiment, the feeding mechanism 7, the second set of feeding mechanism 7, the third set of feeding mechanism 7, and the fourth set of feeding mechanism 7 have the same structure, and the material turning mechanism 8 and the second set of material turning mechanism 8 have the same structure.
In the heating unit 3, in order to reduce the influence of the heated seamless steel tube 6 on each component of the third feeding mechanism 7 and prolong the service life of the bearing seat, each sheave shaft in the third feeding mechanism 7 adopts a hollow blind hole shaft structure, and the free end of each blind hole shaft is connected with a cooling water pipe 3-2.
In order to accurately guide the traveling route of the workpiece and avoid deviation of the seamless steel tube 6, a plurality of guide sleeves 9 are arranged on the table surface of the boosting unit 2, and each guide sleeve 9 and each grooved wheel 7-2 in the fourth feeding mechanism 7 are arranged at intervals; the inlet end of the first electric heating furnace 3-1 and the outlet end of the second electric heating furnace 3-1 are respectively provided with a guide sleeve 9 fixed on the table surface of the heating frame 3-4, and the position of the guide sleeve can be adjusted up, down, left and right.
In order to avoid the seamless steel pipe 6 from shaking, the axes of the boosting sheaves 2-10 and the pressing sheaves 2-11 are arranged in a staggered mode.
In order to facilitate the real-time monitoring of the heating temperature of the seamless steel pipe 6, a temperature sensor 3-3 fixed on the table surface of the heating frame 3-4 is arranged at the outlet of the second electric heating furnace 3-1.
In order to realize automatic control, a first photoelectric sensor 1-3 is fixed on the table top of the feeding rack 1-1, and a second photoelectric sensor 5-3 is fixed on the table top of the discharging rack 5-1.
The working principle is as follows:
and the seamless steel pipes 6 with the output of one shift are hoisted to the feeding frames 1-2 by adopting a hoisting mechanism. Under the action of gravity, the seamless steel pipes 6 roll to one side of the feeding rack 1-1 along the inclined direction of the feeding rack 1-2 and are closely arranged. When the first photoelectric sensor 1-3 detects that no seamless steel pipe 6 is arranged on each sheave 7-2 of the feeding unit 3, the PLC (not shown in the figure) instructs the cylinder 8-3 of the feeding unit 3 to act, so that the connecting rod frame 8-2 of the feeding unit 3 drives each material turning plate 8-1 to turn 60-70 degrees anticlockwise (see figure 7); the seamless steel pipe 6 close to one side of the feeding rack 1-1 can roll down to the V-shaped groove of each grooved pulley 7-2 from the big end along the wedge-shaped surface of the material turning plate 8-1. The first motor 7-4 of the feeding unit 3 can drive each grooved pulley 7-2 through a chain transmission device to transfer the seamless steel pipe 6 to the boosting unit 2. When the first photoelectric sensor 1-3 detects that the seamless steel tube 6 is arranged on each grooved wheel 7-2 of the feeding unit 3, the PLC instructs the cylinder 8-3 of the feeding unit 3 to act, so that the connecting rod frame 8-2 of the feeding unit 3 drives each material turning plate 8-1 to rotate clockwise to reset (see figure 6), and the next seamless steel tube 6 is waited to be grabbed.
The seamless steel pipe 6 sent by the feeding unit 3 is boosted to pass through the guide sleeve 9 under the traction of the two boosting sheaves 2-9 and the two pressing sheaves 2-10 and is transferred to the heating unit 3 at a constant speed under the action of a second set of feeding mechanism 7 arranged on the boosting frame 2-5.
The seamless steel pipe 6 sent by the boosting unit 2 is heated to pass through the guide sleeve 9 fixed on the heating rack 3-4 and the two heating furnaces 3-1 in sequence, and is transferred to the thread rolling unit 4 under the action of the third feeding mechanism 7 arranged on the heating rack 3-4. The temperature sensor 3-3 monitors the tapping temperature of the seamless steel tube 6 in real time, and adjusts the furnace temperature of the heating furnace 3-1 through the PLC, so as to ensure that the floating value of the tapping temperature is within +/-5 ℃.
And the thread rolling is carried out on the seamless steel pipe 6 sent by the heating unit 3 automatically by a three-axis thread rolling machine controlled by a PLC.
The fourth set of feeding mechanism 7 fixed on the discharging rack 5-1 receives the seamless steel tube 6 sent by the thread rolling unit 4. When the second photoelectric sensor 5-3 detects that the seamless steel pipe 6 is arranged in the grooved wheel 7-2 of the fourth feeding mechanism 7, the PLC commands the cylinder 8-3 of the unloading unit 5 to act, so that the connecting rod frame 8-2 of the unloading unit 5 drives each material turning plate 8-1 to turn 60-70 degrees anticlockwise (see figure 7); the seamless steel pipe 6 in the grooved pulley 7-2 can roll down to the discharging frame 5-2 from the big end along the wedge-shaped surface of the material turning plate 8-1 and roll to the bottom end along the inclined surface of the discharging frame for accumulation. When the second photoelectric sensor 5-3 detects that no seamless steel tube 6 is arranged in the grooved wheel 7-2 of the fourth feeding mechanism 7, the PLC instructs the cylinder 8-3 of the discharging unit 5 to act, so that the connecting rod frame 8-2 of the discharging unit 5 drives each material turning plate 8-1 to rotate clockwise to reset (see figure 6), and the next seamless steel tube 6 is waited to be grabbed. When the seamless steel pipes 6 on the discharging frame 5-2 are stacked to a preset number, the seamless steel pipes can be transferred to the next station at one time through the hoisting mechanism, and the self-drilling hollow anchor rod machining is completed.
Claims (6)
1. A self-drilling hollow anchor rod processing device comprises a thread rolling unit (4) connected with the outlet end of a heating unit (3); the method is characterized in that: the feeding unit (1) is connected with the inlet end of the heating unit (3) through the boosting unit (2), and the outlet end of the thread rolling unit (4) is connected with the discharging unit (5);
the feeding unit (1) is composed of a feeding frame (1-2) which is connected with the feeding frame (1-1) from the side surface, a feeding mechanism (7) which is arranged on the feeding frame (1-1) and a material turning mechanism (8); wherein: the feeding mechanism (7) is composed of a plurality of grooved wheels (7-2) which are respectively arranged on the table surface of the feeding rack (1-1), duplex chain wheels (7-5) which are fixed on the table surface of the feeding rack (1-1) and respectively correspondingly connected with the grooved wheels (7-2), a first motor (7-4) which is fixed on the feeding rack (1-1) and drives the duplex chain wheels (7-5) to rotate through chains (7-3), the material turning mechanism (8) is composed of a plurality of material turning plates (8-1) which are respectively arranged on the table surface of the feeding rack (1-1) through hinged supports (8-4), swing rods (8-5) which are fixed on the material turning plates (8-1), connecting rod frames (8-2) which are respectively hinged with the swing rods (8-5), and a cylinder (8-3) which is hinged on the feeding rack (1-1) and is hinged with the connecting rod frames through piston rods of the material turning mechanisms; the material turning plate (8-1) is of a wedge-shaped structure, the large head end of the material turning plate points to the feeding frame (1-2), and the table top of one side of the feeding frame, which is close to the feeding frame (1-1), is inclined downwards;
the boosting unit (2) is composed of two boosting sheaves (2-9) supported on the table top of a boosting rack (2-5), two second motors (2-4) fixed on the boosting rack (2-5) and driving each corresponding boosting sheave (2-9) to rotate, a pressing device respectively positioned above each boosting sheave (2-9), and a second set of feeding mechanism (7) arranged on the table top of the boosting rack (2-5), wherein the pressing device is composed of two portal frames fixed on the table top of the boosting rack (2-5), pressing plates (2-1) respectively arranged on the portal frames, adjusting screws (2-6) arranged on the portal frames and movably connected with the pressing plates (2-1), springs (2-7) arranged on the adjusting screws and used for pressing the pressing plates (2-1) downwards, and pressing sheaves (2-10) supported on the back of the pressing plates (2-1); each door-shaped frame consists of two guide posts (2-8) fixed on the table surface of the boosting frame (2-5) and a cross beam (2-2) fixed on the two guide posts (2-8), and two ends of the pressure plate (2-1) are respectively arranged on the corresponding guide posts (2-8);
the heating unit (3) consists of a third set of feeding mechanism (7) arranged on the heater frame (3-4) and two electric heating furnaces (3-1) fixedly arranged on the table surface of the heater frame (3-4), and each electric heating furnace (3-1) and each grooved wheel (7-2) are arranged at intervals;
the thread rolling unit (4) is composed of a three-axis thread rolling machine;
the discharging unit (5) is composed of a discharging frame (5-2) connected with the discharging rack (5-1) from the side, a fourth set of feeding mechanism (7) and a second set of material turning mechanism (8) which are arranged on the discharging rack (5-1), the small end of the material turning plate (8-1) points to the discharging frame (5-2), and the table top of one side of the discharging frame, which is far away from the discharging rack (5-1), is inclined downwards;
and an included angle delta larger than 90 degrees is formed between each grooved pulley shaft in each set of feeding mechanism (7) and the moving direction of the seamless steel pipe (6).
2. A self-drilling, hollow bolt machining apparatus according to claim 1, wherein: each sheave shaft in the third set of feeding mechanism (7) is a hollow blind hole shaft, and the free end of each blind hole shaft is connected with a cooling water pipe (3-2).
3. A self-drilling hollow bolt machining apparatus according to claim 1 or 2, wherein: a plurality of guide sleeves (9) are arranged on the table surface of the boosting unit (2), and each guide sleeve (9) and each grooved wheel (7-2) in the fourth set of feeding mechanism (7) are arranged at intervals; the inlet end of the first electric heating furnace (3-1) and the outlet end of the second electric heating furnace (3-1) are respectively provided with a guide sleeve (9) fixed on the table surface of the heating frame (3-4).
4. A self-drilling, hollow bolt machining apparatus according to claim 3, wherein: a temperature sensor (3-3) fixed on the table surface of the heating frame (3-4) is arranged at the outlet of the second electric heating furnace (3-1).
5. A self-drilling, hollow bolt machining apparatus according to claim 3, wherein: a first photoelectric sensor (1-3) is fixed on the table top of the feeding frame (1-1).
6. A self-drilling hollow bolt machining apparatus according to claim 3, wherein: a second photoelectric sensor (5-3) is fixed on the table top of the unloading rack (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221708491.1U CN217727001U (en) | 2022-07-05 | 2022-07-05 | Self-drilling type hollow anchor rod processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221708491.1U CN217727001U (en) | 2022-07-05 | 2022-07-05 | Self-drilling type hollow anchor rod processing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217727001U true CN217727001U (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221708491.1U Active CN217727001U (en) | 2022-07-05 | 2022-07-05 | Self-drilling type hollow anchor rod processing equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN217727001U (en) |
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2022
- 2022-07-05 CN CN202221708491.1U patent/CN217727001U/en active Active
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