A quick forming and turning machine for steel balls

Abstract

The utility model relates to a kind of steel ball quick forming rotary cutting machine, it includes frame (1), the frame (1) is provided with left and right two groups of support swing arm components (2), the support swing arm component (2) is provided with roll (3), left and right two rolls (3) are arranged in parallel, and left and right two rolls (3) are provided with lower guide plate component (4) between. A kind of steel ball quick forming rotary cutting machine of the utility model, it can effectively guarantee the appearance quality of final steel ball, greatly improve production efficiency.

Description

Technical Field

[0001] This utility model relates to a rapid forming and veneer cutting machine for steel balls, belonging to the technical field of steel ball production equipment. Background Technology

[0002] Steel balls, as the grinding media in ball mills, are widely used in the grinding process of ball mills. Ball mills are the main equipment in mineral processing and are widely used in mineral processing plants. my country is a major ore-producing country with a large number of ball mills in operation, requiring a large quantity of steel balls. Steel balls are consumable parts, and the annual consumption is substantial. Forged steel balls are widely used due to their long service life. Hot-rolled steel balls are also widely used because of their stable internal quality, dense microstructure, fine grains, resistance to deformation, and good wear resistance.

[0003] Conventional hot-rolled steel ball production processes generally adopt the ferrous metallurgical industry standard for forged (rolled) steel balls (YB / T091-2005) to professionally produce hot-rolled grinding steel balls of various specifications, with a diameter range of ￠25~￠125mm. The billets used for rolling grinding steel balls are hot-rolled round steel bars of various chemical compositions, with a diameter equal to the nominal diameter of the steel ball; conventional hot-rolled steel balls mainly... The production process should be as follows: Step 1: After inspection, the round steel bars are cut into steel ball blanks according to the specified length; Step 2: The steel ball billet is heated to a suitable temperature in a continuous heating furnace before rolling; Step 3: After the red-hot steel billet is fed into the hot rolling mill, it passes between two rolls with special spiral grooves. It rotates forward and is continuously rolled into steel balls; Step 4: The rolled red-hot steel balls are immediately sent to a heat treatment device for quenching and tempering heat treatment, so that the steel balls... Achieve high and uniform hardness; Step 5: Products that pass inspection are sent to the finished goods warehouse, packaged, and then shipped to customers.

[0004] Currently, the hot rolling process in step three of the steel ball production is commonly achieved using a skew rolling mill. This process employs a skew rolling technique, where two straight, non-parallel, intersecting rolls work together. The rolls rotate synchronously around their respective axes, relying on contact friction to propel the workpiece forward, gradually shaping it into a sphere. The connecting parts between the spheres gradually taper, eventually breaking off to obtain a steel ball. However, this skew rolling mill, which uses two intersecting rolls to shave the bar stock to produce steel balls, has relatively low production efficiency and cannot guarantee the final appearance quality of the steel balls. Furthermore, during steel ball production, the skew rolling mill requires upper and lower guide plates to guide and clamp the bar stock. These guide plates experience severe wear during production and require frequent replacement, significantly increasing the maintenance and replacement costs of the equipment. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a rapid steel ball forming and veneer cutting machine that can effectively guarantee the appearance quality of the final steel ball and greatly improve production efficiency.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: a steel ball rapid forming rotary cutting machine, which includes a frame, on which two sets of left and right support swing arm assemblies are arranged, and rollers are arranged on the support swing arm assemblies. The left and right rollers are arranged in parallel, and a lower guide plate assembly is arranged between the left and right rollers.

[0007] Optionally, the frame includes a base frame, and a top cover is provided on the top of the base frame; locking arms are hinged on the left and right sides of the base frame by pins, and the top cover has a slot at the corresponding position of the locking arm, the locking arm is disposed in the slot, and a locking wedge groove is provided on the upper part of the locking arm, and a locking wedge block is disposed in the locking wedge groove.

[0008] Optionally, the support swing arm assembly includes two swing arms arranged opposite each other, the upper part of the swing arm is hinged to the frame through a first camshaft, a bearing seat is provided in the middle of the swing arm, the roll support is provided between the two bearing seats, and an adjusting rod assembly is connected between the lower ends of the two swing arms.

[0009] Optionally, a self-aligning bearing is provided in the bearing housing; a spherical bearing is provided between the first camshaft and the rocker arm.

[0010] Optionally, a first adjusting gear is provided at the outer end of the first camshaft.

[0011] Optionally, the roll includes a roll body, with roll necks on both the front and rear sides of the roll body, and a spiral groove on the roll body. The spiral groove includes a feeding and distributing section, a forming and cutting section, and a diameter-correcting section arranged sequentially from back to front.

[0012] Optionally, the adjusting rod assembly includes a central connecting rod, with adjusting bolts on both the front and rear sides of the central connecting rod. A flange cover is connected to the outer end of the adjusting bolt, and a first ball groove is provided on the outer side of the flange cover. A second ball groove is provided at the corresponding position of the first ball groove on the swing arm, and a rolling ball is provided between the first ball groove and the second ball groove.

[0013] Optionally, a roll correction mechanism is provided on the outer side of the swing arm; the roll correction mechanism includes two front and rear second camshafts, the positions of which correspond to the positions of the front and rear swing arms respectively, and a second adjusting gear is provided on the outer end of the second camshaft.

[0014] Optionally, the rocker arm is provided with a baffle at the cam position of the second camshaft, and the cam portion of the second camshaft abuts against the baffle.

[0015] Optionally, an intermediate cylinder is provided between the left and right sets of support swing arm assemblies; a lateral adjustment bolt is provided on the outside of the support swing arm assembly.

[0016] Compared with the prior art, the advantages of this utility model are: 1. This utility model includes two parallel rolls arranged on the left and right sides, and a feeding distribution section, a forming and cutting section and a diameter straightening section arranged sequentially from back to front of the rolls, which can effectively ensure the final appearance quality of the steel ball and greatly improve production efficiency. 2. This utility model eliminates the upper guide plate, which greatly reduces production and manufacturing costs as well as subsequent maintenance and replacement costs. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a rapid steel ball forming rotary cutting machine according to the present invention.

[0018] Figure 2 for Figure 1 AA sectional view.

[0019] Figure 3 for Figure 1 BB cross-sectional view.

[0020] Figure 4 for Figure 1 Top view.

[0021] Figure 5 for Figure 3 A schematic diagram of the structure of the intermediate rolling mill roll body.

[0022] in: Rack 1 Base frame 1.1 Top cover 1.2 Pin 1.3 Locking arm 1.4 Card slot 1.5 Locking wedge groove 1.6 Locking wedge 1.7 Support arm assembly 2 Swing arm 2.1 First camshaft 2.2 Bearing housing 2.3 Self-aligning bearing 2.4 First adjusting gear 2.5 2.6 spherical bearing Second ball groove 2.7 baffle 2.8 Roll 3 Roller body 3.1 Roll neck 3.2 Spiral groove 3.3 Feed distribution section 3.3.1 Forming and cutting section 3.3.2 Full diameter section 3.3.3 Lower guide plate assembly 4 Adjusting rod assembly 5 Intermediate connecting rod 5.1 Adjusting bolt 5.2 Flange cover 5.3 First ball groove 5.4 5.5 for in-play betting Roll straightening mechanism 6 Second camshaft 6.1 Second adjusting gear 6.2 Intermediate cylinder 7 8 lateral adjusting bolts Feeding mechanism 9 Discharge mechanism 10. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] See Figures 1-4 The present invention relates to a steel ball rapid forming rotary cutting machine, which includes a frame 1, on which two sets of left and right support swing arm assemblies 2 are provided, and rollers 3 are provided on the support swing arm assemblies 2. The left and right rollers 3 are arranged in parallel, and a lower guide plate assembly 4 is provided between the left and right rollers 3. The frame 1 includes a base frame 1.1, and a top cover 1.2 is provided on the top of the base frame 1.1; Locking arms 1.4 are hinged to the left and right sides of the base frame 1.1 via pins 1.3. The upper cover 1.2 has a slot 1.5 at the corresponding position of the locking arm 1.4. The locking arm 1.4 is disposed in the slot 1.5. A locking wedge groove 1.6 is provided on the upper part of the locking arm 1.4. A locking wedge block 1.7 is disposed in the locking wedge groove 1.6. The supporting swing arm assembly 2 includes two swing arms 2.1 arranged in opposite directions. The upper part of the swing arm 2.1 is hinged to the frame 1 through a first camshaft 2.2. A bearing seat 2.3 is provided in the middle of the swing arm 2.1. The roll 3 is supported between the two bearing seats 2.3. An adjusting rod assembly 5 is connected between the lower ends of the two swing arms 2.1. A self-aligning bearing 2.4 is provided inside the bearing housing 2.3; The outer end of the first camshaft 2.2 is provided with a first adjusting gear 2.5; A spherical bearing 2.6 is provided between the first camshaft 2.2 and the rocker arm 2.1; The roll 3 includes a roll body 3.1, and roll necks 3.2 are provided on the front and rear sides of the roll body 3.1. The roll body 3.1 is provided with a spiral groove 3.3, and the spiral groove 3.3 includes a feeding distribution section 3.3.1, a forming and cutting section 3.3.2 and a diameter straightening section 3.3.3 arranged sequentially from back to front. The lower guide plate assembly 4 includes a base, a guide plate seat is provided on the base, a guide plate groove is provided on the top of the guide plate seat, and a lower guide plate is provided in the guide plate groove; The adjusting rod assembly 5 includes a middle connecting rod 5.1, with adjusting bolts 5.2 on both the front and rear sides of the middle connecting rod 5.1. A flange cover 5.3 is connected to the outer end of the adjusting bolt 5.2. A first ball groove 5.4 is provided on the outer side of the flange cover 5.3. A second ball groove 2.7 is provided at the corresponding position of the first ball groove 5.4. A rolling ball 5.5 is provided between the first ball groove 5.4 and the second ball groove 2.7. The flange cover 5.3 is connected to the swing arm 2.1 by bolts; A roll correction mechanism 6 is provided on the outer side of the swing arm 2.1; The roll correction mechanism 6 includes two second camshafts 6.1, one in front and one behind. The positions of the two second camshafts 6.1 correspond to the positions of the two swing arms 2.1, respectively. A second adjusting gear 6.2 is provided at the outer end of the second camshaft 6.1. The swing arm 2.1 is provided with a baffle 2.8 at the cam position of the second camshaft 6.1, and the cam part of the second camshaft 6.1 abuts against the baffle 2.8; An intermediate cylinder 7 is provided between the left and right sets of support swing arm assemblies 2; A lateral adjusting bolt 8 is provided on the outer side of the support swing arm assembly 2. The inner end of the lateral adjusting bolt 8 abuts against the bearing seat 2.3. The left and right positions of the roll can be adjusted by the lateral adjusting bolt. The frame 1 is provided with a feeding mechanism 9 and a discharging mechanism 10 on the front and rear sides respectively.

[0025] Working principle: The bar stock is fed forward from the feeding mechanism to between the left and right rollers. The biting and distribution section uses gradually widening and heightening roller rings to cut into the round steel bar stock, gradually dividing it into spherical blanks of equal volume but different lengths. At this point, the spherical blanks have not yet separated from the bar stock. The wall of the spiral groove in the forming and cutting section is higher than the wall of the spiral groove in the biting and distribution section. The cross-section of the bottom of the spiral groove in the forming and cutting section is semi-circular. The forming and cutting section uses the wall of the spiral groove to compress the spherical blanks into spherical shapes and separate them from the bar stock. The wall of the spiral groove in the sizing section is higher than the wall of the spiral groove in the forming and cutting section. The arc of the semi-circular cross-section of the bottom of the sizing section is smaller than that of the semi-circular cross-section of the bottom of the spiral groove in the forming and cutting section. The sizing section uses the bottom and wall of the spiral groove to rotate the spherical blanks that have separated from the bar stock at multiple angles, further processing them into ideal spheres.

[0026] The roll alignment mechanism can adjust the front and rear positions of the roll. By rotating the second adjusting gear, the matching position between the second camshaft and the baffle can be adjusted, thereby fine-tuning the front and rear positions of the roll. Since the bearing housing is equipped with a self-aligning bearing, it can ensure that the roll is always in a horizontal position. By rotating the first adjusting gear, the matching position between the first camshaft and the swing arm can be adjusted, thereby fine-tuning the vertical position of the roll. By adjusting the lateral adjusting bolt, the left and right positions of the roll can be fine-tuned.

[0027] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A rapid forming and veneer cutting machine for steel balls, characterized in that: It includes a frame (1), on which two sets of left and right support swing arm assemblies (2) are provided, and on the support swing arm assemblies (2) are rollers (3), the left and right rollers (3) are arranged in parallel, and a lower guide plate assembly (4) is provided between the left and right rollers (3).

2. The steel ball rapid forming and veneer cutting machine according to claim 1, characterized in that: The frame (1) includes a base frame (1.1), and a top cover (1.2) is provided on the top of the base frame (1.1). Locking arms (1.4) are hinged on the left and right sides of the base frame (1.1) through pins (1.3). The top cover (1.2) has a slot (1.5) at the corresponding position of the locking arm (1.4). The locking arm (1.4) is located in the slot (1.5). A locking wedge groove (1.6) is provided on the upper part of the locking arm (1.4). A locking wedge block (1.7) is provided in the locking wedge groove (1.6).

3. The steel ball rapid forming and veneer cutting machine according to claim 1, characterized in that: The supporting swing arm assembly (2) includes two swing arms (2.1) arranged opposite to each other. The upper part of the swing arm (2.1) is hinged to the frame (1) through the first camshaft (2.2). A bearing seat (2.3) is provided in the middle of the swing arm (2.1). The roll (3) is supported between the two bearing seats (2.3). An adjusting rod assembly (5) is connected between the lower ends of the two swing arms (2.1).

4. A rapid steel ball forming and veneer cutting machine according to claim 3, characterized in that: A self-aligning bearing (2.4) is provided inside the bearing housing (2.3); a spherical bearing (2.6) is provided between the first camshaft (2.2) and the rocker arm (2.1).

5. A rapid steel ball forming and veneer cutting machine according to claim 3, characterized in that: The first camshaft (2.2) has a first adjusting gear (2.5) at its outer end.

6. The steel ball rapid forming and veneer cutting machine according to claim 1, characterized in that: The roll (3) includes a roll body (3.1), and roll necks (3.2) are provided on the front and rear sides of the roll body (3.1). A spiral groove (3.3) is provided on the roll body (3.1). The spiral groove (3.3) includes a feeding distribution section (3.3.1), a forming and cutting section (3.3.2) and a diameter straightening section (3.3.3) arranged sequentially from back to front.

7. A rapid steel ball forming and veneer cutting machine according to claim 3, characterized in that: The adjusting rod assembly (5) includes an intermediate connecting rod (5.1), with adjusting bolts (5.2) on both the front and rear sides of the intermediate connecting rod (5.1). A flange cover (5.3) is connected to the outer end of the adjusting bolt (5.2). A first ball groove (5.4) is provided on the outer side of the flange cover (5.3). A second ball groove (2.7) is provided at the corresponding position of the first ball groove (5.4) on the swing arm (2.1). A rolling ball (5.5) is provided between the first ball groove (5.4) and the second ball groove (2.7).

8. A rapid steel ball forming and veneer cutting machine according to claim 3, characterized in that: A roll correction mechanism (6) is provided on the outside of the swing arm (2.1); the roll correction mechanism (6) includes two front and rear second camshafts (6.1), the positions of the two front and rear second camshafts (6.1) correspond to the positions of the two front and rear swing arms (2.1) respectively, and a second adjusting gear plate (6.2) is provided on the outer end of the second camshaft (6.1).

9. A rapid forming and veneer cutting machine for steel balls according to claim 8, characterized in that: The swing arm (2.1) is provided with a baffle (2.8) at the cam position of the second camshaft (6.1), and the cam part of the second camshaft (6.1) abuts against the baffle (2.8).

10. A rapid forming and veneer cutting machine for steel balls according to claim 1, characterized in that: An intermediate cylinder (7) is provided between the two sets of support swing arm assemblies (2); a lateral adjusting bolt (8) is provided on the outside of the support swing arm assembly (2).

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