Movable die ejection mechanism of steel ball quick forging machine

Abstract

The present application relates to a kind of steel ball quick forging machine movable die ejection mechanism, it includes movable die lever (9.1) and top head (9.2), the movable die lever (9.1) is arranged along vertical direction, the top head (9.2) is arranged along front-back direction, the lower part of movable die lever (9.1) is matched with top head (9.2), when movable die lever (9.1) rotates, top head (9.2) can be pushed to move forward.The present application relates to a kind of steel ball quick forging machine movable die ejection mechanism, it is simple in structure, easy to operate, greatly improves the production efficiency of steel ball, can satisfy the increasing production demand of enterprise, improves the market competitiveness of enterprise.

Description

TECHNICAL FIELD

[0001] The application relates to a movable mold ejection mechanism of a steel ball quick forging machine and belongs to the technical field of steel ball production equipment. BACKGROUND

[0002] A ball mill is a key equipment for further crushing of crushed materials. It is widely used in the production of cement, silicate products, new building materials, refractory materials, chemical fertilizers, non-ferrous and ferrous metal ore dressing, and glass ceramics, and is used for dry or wet grinding of various ores and other grindable materials.

[0003] Steel balls of a ball mill are media for grinding materials in the ball mill equipment, and mainly serve to impact and crush the materials and also serve to grind the materials. Therefore, the wear-resistant steel ball is the most consumed and damaged part in the ball mill. Many countries with abundant mines abroad have a very huge demand for wear-resistant balls.

[0004] There are mainly two types of production processes for wear-resistant steel balls, namely, forging (rolling) and casting. The cast steel ball is gradually eliminated because of unstable internal quality, poor wear resistance and high consumption. The production of forged (rolled) grinding balls currently has the following modes:

[0005] 1. Air hammer semi-die forging: steel bar is cut in a cold state, heated in a heating furnace, and then forged into shape by multiple actions in the die of an air hammer. This mode has many operation links, high labor intensity and low production efficiency.

[0006] 2. Press top forging (hot top forging as an example): steel bar is cut in a cold state, heated in a heating furnace (or heated first and then cut), sent to the press die by a mechanical device, and extruded into shape by 1 or 2-3 times of stamping action. This mode reduces labor intensity and has high production efficiency, but the ball shape is slightly poor.

[0007] 3. Roll forging machine roll forging: steel bar is cut in a cold state, heated in a heating furnace (or heated first and then cut), preformed by a preforming machine, and formed by a roll forging machine. Compared with the air hammer semi-die forging, this mode has improved yield and quality, but the quality is unstable and the production cost is high due to the influence of equipment and human factors.

[0008] 4. Rotary cutting and roll forging machine rolling: steel round bar is heated in a heating furnace, enters a rotary cutting and roll forging machine, and is rolled into a ball through three main processes of cutting, forming and rolling. Generally, one steel ball is produced per revolution of the roll. This mode has high production efficiency and guaranteed surface quality of the produced grinding ball, but still has potential for further improvement in yield and heat treatment effect.

[0009] At present, the rotary cutting and roll forging machine is generally used in the production of wear-resistant steel ball in the market, and when working, the steel round bar is sent into between two rotary cutting rolls after being heated, the two rotary cutting rolls each include a cutting section, a forming section and a roll forming section, and the round bar is rolled into a ball through the cutting, forming and roll forming processes, the production efficiency thereof is relatively high compared with other several ways, but still cannot meet the increasing production demand, and therefore it is necessary to provide a steel ball quick forging machine with higher production efficiency. SUMMARY

[0010] The technical problem to be solved by the present application is to provide a steel ball quick forging machine movable die ejection mechanism, which has simple structure, convenient operation, greatly improves the steel ball production efficiency, can meet the increasing production demand of enterprises and improve the market competitiveness of enterprises.

[0011] The technical scheme adopted by the present application to solve the above problems is as follows: a steel ball quick forging machine movable die ejection mechanism, which comprises a movable die lever and a knock head, the movable die lever is arranged vertically, the knock head is arranged in the front-rear direction, and the lower part of the movable die lever is matched with the knock head, and the knock head can be pushed to move forward when the movable die lever rotates.

[0012] Optionally, a knock lever is connected to the front end of the knock head.

[0013] Optionally, a movable die ejection knock lever is arranged on the upper end of the movable die lever in the transverse direction, a knock lever shaft is arranged on the outer end of the movable die ejection knock lever upwards, and a knock lever roller is arranged on the knock lever shaft.

[0014] Optionally, the movable die ejection mechanism further comprises a knock block, the position of the knock block corresponds to the position of the knock lever roller, and the knock lever roller is matched with the knock block.

[0015] Optionally, a first lever insertion hole is formed in the knock head in the vertical direction, and the lower part of the movable die lever is inserted into the first lever insertion hole.

[0016] Optionally, a first arc-shaped notch is formed in the lower part of the movable die lever, and the knock head is clamped in the first arc-shaped notch.

[0017] Optionally, the matching surface of the knock block and the knock lever roller is an inclined surface.

[0018] Optionally, a first reset spring is sleeved on the knock lever.

[0019] Optionally, a second reset spring is connected to the movable die ejection knock lever.

[0020] Optionally, the movable die ejection mechanism further comprises a lever support, a lever fixing sleeve is arranged on the lever support, and the lever fixing sleeve is sleeved on the upper part of the movable die lever.

[0021] Compared with the prior art, the present application has the advantages of:

[0022] The movable die ejection mechanism of the steel ball quick forging machine has simple structure, convenient operation, greatly improves the production efficiency of steel balls, can meet the increasing production demand of enterprises, and improves the market competitiveness of enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure diagram of the body of the steel ball quick forging machine is shown.

[0024] Figure 2 The top view of the steel ball quick forging machine is shown. Figure 1

[0025] Figure 3 The side view of the steel ball quick forging machine is shown. Figure 1

[0026] Figure 4 The state diagram of the bar and the limiting rod is shown.

[0027] Figure 5 The top view of the steel ball quick forging machine is shown. Figure 4

[0028] The side view of the steel ball quick forging machine is shown. Figure 6 Figure 5 The structure diagram of the sliding block mechanism of the steel ball quick forging machine is shown.

[0029] Figure 7 The front view of the steel ball quick forging machine is shown.

[0030] Figure 8 Figure 7 The A-A sectional view of the steel ball quick forging machine is shown.

[0031] Figure 9 The B view of the steel ball quick forging machine is shown. Figure 8

[0032] The structure diagram of the sliding block body of the steel ball quick forging machine is shown. Figure 10 Figure 9 The structure diagram of the sliding block body of the steel ball quick forging machine is shown.

[0033] Figure 11 Figure 7 The structure diagram of the cutting mechanism of the steel ball quick forging machine is shown.

[0034] Figure 12 The structure diagram of the cutting mechanism of the steel ball quick forging machine is shown.

[0035] Figure 13 The top view of the steel ball quick forging machine is shown. Figure 12

[0036] The C part of the steel ball quick forging machine is shown. Figure 14 Figure 13

[0037] ​​​​​​​​Figure 15 Fig. 1 is a structural schematic view of a steel ball quick forging machine feeding mechanism according to the present application. Figure 12 Fig. 2 is a structural schematic view of a S plate in Fig. 1.

[0038] Figure 16 Fig. 3 is a structural schematic view of a steel ball quick forging machine feeding mechanism according to the present application.

[0039] Figure 17 Fig. 4 is a left view of Fig. 3. Figure 16

[0040] Figure 18 Fig. 5 is a right view of Fig. 3. Figure 16

[0041] Figure 19 Fig. 6 is a top view of Fig. 3. Figure 18

[0042] Figure 20 Fig. 7 is an enlarged view of D part of Fig. 3. Figure 16

[0043] Figure 21 Fig. 8 is an E view of Fig. 3. Figure 18

[0044] Figure 22 Fig. 9 is an enlarged view of a feeding pawl in Fig. 3. Figure 18

[0045] Figure 23 Fig. 10 is a top view of Fig. 3. Figure 22

[0046] Figure 24 Fig. 11 is a front view of a steel ball quick forging machine driving mechanism according to the present application.

[0047] Figure 25 Fig. 12 is an F-F sectional view of Fig. 11. Figure 24

[0048] Figure 26 Fig. 13 is a structural schematic view of a steel ball quick forging machine movable die and movable die ejection mechanism according to the present application.

[0049] Figure 27 Fig. 14 is a side view of Fig. 13. Figure 26

[0050] Figure 28 Fig. 15 is a schematic view of a cooperation relationship between a movable die lever and a top striking head in Fig. 13. Figure 26

[0051] Figure 29 Fig. 16 is a structural schematic view of a movable die adjusting block in Fig. 13. Figure 26

[0052] Figure 30 Fig. 17 is a partial sectional view of Fig. 13. Figure 29

[0053] Figure 31 Fig. 18 is a structural schematic view of a steel ball quick forging machine movable die and movable die ejection mechanism according to the present application.​​​​​​​​​​​​Figure 29 is a top view of the embodiment.

[0054] Figure 32 is Figure 26 is a structure diagram of the movable wedge plate of the embodiment.

[0055] Figure 33 is Figure 32 is a longitudinal sectional view of the embodiment.

[0056] Figure 34 is Figure 26 is a structure diagram of the up-and-down moving plate of the embodiment.

[0057] Figure 35 is Figure 34 is a longitudinal sectional view of the embodiment.

[0058] Figure 36 is Figure 26 is a structure diagram of the movable block of the embodiment.

[0059] Figure 37 is Figure 36 is a longitudinal sectional view of the embodiment.

[0060] Figure 38 is a structure diagram of the fixed mold ejection mechanism of the steel ball quick forging machine.

[0061] Figure 39 is Figure 38 is a top view of the embodiment.

[0062] Figure 40 is a structure diagram of another embodiment of the fixed mold ejection mechanism of the steel ball quick forging machine.

[0063] Figure 41 is Figure 40 is a side view of the embodiment.

[0064] Figure 42 is a structure diagram of the material clamping mechanism of the steel ball quick forging machine in the clamping state.

[0065] Figure 43 is Figure 42 is a side view of the embodiment.

[0066] Figure 44 is a structure diagram of the material clamping mechanism of the steel ball quick forging machine in the unclamping state.

[0067] Figure 45 is Figure 44 is a side view of the embodiment.

[0068] Figure 46 is a structure diagram of the installation of the clutch of the steel ball quick forging machine.

[0069] wherein:

[0070] 1. Machine body, 1.1 Frame, 1.2 Slide rail, 1.2.1 Lower support guide plate, 1.2.2 Upper pressure plate, 1.2.3 Slide groove, 1.3 Limit seat, 1.4 Limit rod, 1.5 Front support, 1.6 Rear support, 1.7 Tensioning screw, 1.8 Tensioning nut, 1.9 Cutting guide sleeve, 1.10 Sliding guide groove, 1.11 Receiving groove;

[0071] 2. Slider mechanism; 2.1. Slider body; 2.1.1. Slider base; 2.1.2. Slide plate; 2.2. First connecting rod; 2.3. First shaft hole; 2.4. First pin hole; 2.5. First connecting rod pin; 2.6. First arc-shaped hinge; 2.7. First bearing; 2.8. First connecting rod pin bushing; 2.9. First bushing; 2.10. Anti-rotation groove; 2.11. Anti-rotation strip; 2.12. First screw; 2.13. Second screw; 2.14. Copper guide plate; 2.15.

[0072] Movable mold 3, moving mold adjusting block 3.1, adjusting block body 3.1.1, wedge groove 3.1.2, mounting connecting plate 3.1.3, moving mold lever hole 3.1.4, ejector head hole 3.1.5, first screw hole 3.1.6, moving mold wedge block 3.2, wedge block body 3.2.1, first elongated hole 3.2.2, first ejector rod hole 3.2.3, moving mold up and down moving plate 3.3, moving plate body 3.3.1, second elongated hole 3.3.2, second ejector rod hole 3.3.3, second screw hole 3.3.4, first positioning groove 3.3.5, moving mold connecting block 3.4, connecting block body 3.4.1, positioning boss 3.4.2, third screw hole 3.4.3, second positioning groove 3.4.4, fourth screw hole 3.4.5, third ejector rod hole 3.4.6, moving mold 3.5;

[0073] Fixed mold 4;

[0074] Feed hole 5;

[0075] The cutting mechanism includes: 6. Cutting guide post 6.1, guide rod 6.2, movable block 6.2.1, screw sleeve 6.2.2, double-ended screw 6.2.3, S-plate 6.3, connecting seat 6.3.1, S-plate body 6.3.2, outer horizontal section 6.3.2.1, middle inclined section 6.3.2.2, inner horizontal section 6.3.2.3, second connecting rod 6.4, roller 6.5, cutting knife 6.6, eccentric sleeve hole 6.7, eccentric sleeve 6.8, second shaft hole 6.9, pressure block 6.10, eccentric bearing sleeve 6.11, second pin hole 6.12, second connecting rod pin 6.13, second arc-shaped hinge head 6.14, second arc-shaped groove 6.15, second bearing shell 6.16, second connecting rod pin bushing 6.17, pressure ring 6.18, connecting screw 6.19, and return spring 6.20.

[0076] 7. Feeding Mechanism; 7.1 Feeding Frame; 7.2 Upper Roller Assembly; 7.2.1 Upper Bearing Seat; 7.2.2 Upper Roller Shaft; 7.2.3 Upper Roller; 7.2.4 Crossbeam; 7.2.5 Upper Gear; 7.3 Lower Roller Assembly; 7.3 Lower Bearing Seat; 7.3.1 Lower Roller Shaft; 7.3.2 Lower Roller; 7.3.3 Lower Gear; 7.3.4 Bearing Seat Slide Groove; 7.4 Clamping Cylinder; 7.5 Feeding Pivot Shaft; 7.6 Feeding Hub; 7.7 Feeding Swing Rod; 7.8 Feeding Gear; 7.9 Feeding Ratchet; 7.10 Pawl Shaft; 7.11 Feeding Pawl; 7.12 Bearing; 7.13 Torsion Spring; 7.14 Fixed Shaft; 7.15 Feeding Header; 7.16 Header 7.16.1 Ear, 7.16.2 Heading middle bracket, 7.16.3 Heading adjustment plate, 7.16.4 Heading adjustment groove, 7.16.5 Adjusting screw, 7.17 Feeding cam, 7.18 Heading roller, 7.19 Feeding pull rod, 7.19.1 Front pull rod fork, 7.19.2 Rear pull rod fork, 7.19.3 Middle pull rod, 7.19.4 Pull rod nut, 7.19.5 Front pull rod fork pin, 7.19.6 Rear pull rod fork pin, 7.20 Third shaft hole, 7.21 Roller pin, 7.22 First spring pull shaft, 7.23 Second spring pull shaft, tension spring, 7.24 Pawl cylinder, 7.25 Push rod, 7.26 Top rod;

[0077] Transmission mechanism 8, eccentric shaft 8.1, eccentric wheel 8.2, long key 8.3, motor 8.4, gearbox 8.5, gearbox body 8.5.1, first transmission shaft 8.5.2, second transmission shaft 8.5.3, third transmission shaft 8.5.4, first gear 8.5.5, second gear 8.5.6, third gear 8.5.7, fourth gear 8.5.8, fifth gear 8.5.9, first pulley 8.6, second pulley 8.7, transmission belt 8.8;

[0078] 9. Moving mold ejection mechanism, 9.1 moving mold lever, 9.2 ejector head, 9.3 ejector rod, 9.4 moving mold ejection contact rod, 9.5 ejection contact rod shaft, 9.6 contact rod roller, 9.7 contact block, 9.8 first lever insertion hole, 9.9 first arc-shaped groove, 9.10 first return spring, 9.11 lever bracket, 9.12 lever fixing sleeve;

[0079] Fixed mold ejection mechanism 10, fixed mold lever 10.1, fixed mold ejector rod 10.2, ejector rod shoulder 10.3, second lever insertion hole 10.4, second arc-shaped groove 10.5, fixed mold ejection bracket 10.6, third return spring 10.7, first hinge seat 10.8, second hinge seat 10.9, swing rod 10.10, pull rod 10.11, upper through hole 10.12, lower through hole 10.13, adjusting nut 10.14;

[0080] Clamping mechanism 11, sliding base plate bracket 11.1, top wheel support 11.2, slider guide groove 11.3, slider 11.4, pulley guide block 11.5, mounting base plate 11.5.1, arc-shaped guide plate 11.5.2, pulley shaft 11.6, pulley 11.7, lever 11.8, material-pulling spring 11.9;

[0081] Clutch 12. Detailed Implementation

[0082] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0083] See Figures 1-46 This invention relates to a high-speed forging machine for steel balls, comprising a machine body 1, a sliding block mechanism 2 movable back and forth on the machine body 1, a movable die 3 on the sliding block mechanism 2, a fixed die 4 in front of the movable die 3, the fixed die 4 being mounted on the machine body 1, a feed hole 5 on one side of the fixed die 4, the feed hole 5 being arranged in a back-to-back direction, a cutting mechanism 6 on one side of the feed hole 5, and a feeding mechanism 7 in front of the feed hole 5; the feeding mechanism 7 can convey heated bar stock backward into the feed hole 5, the cutting mechanism 6 can cut the bar stock protruding from the feed hole 5 and push the cut bar stock to the position of the fixed die 4, the sliding block mechanism 2 can drive the movable die 3 to move back and forth, and through the cooperation between the movable die 3 and the fixed die 4, the cut bar stock can be forged into steel balls;

[0084] The body 1 includes a frame 1.1, on which a slide rail 1.2 is provided. The slide rail 1.2 is arranged in the front-back direction, and the slider mechanism 2 is disposed on the slide rail 1.2.

[0085] There are two slide rails 1.2, which are arranged in parallel left and right.

[0086] The slide rail 1.2 includes a lower support guide plate 1.2.1, and an upper pressure plate 1.2.2 is provided above the lower support guide plate 1.2.1. Both the lower support guide plate 1.2.1 and the upper pressure plate 1.2.2 are fixedly mounted on the frame 1.1, and a sliding groove 1.2.3 is formed between the lower support guide plate 1.2.1 and the upper pressure plate 1.2.2.

[0087] A limiting seat 1.3 is provided behind the feed hole 5. The limiting seat 1.3 is located between two left and right slide rails 1.2. The limiting seat 1.3 is fixedly mounted on the frame 1.1. A limiting rod 1.4 is provided on the limiting seat 1.3 and is arranged in the front-back direction. The feeding mechanism 7 conveys the bar stock backward until the end of the bar stock abuts against the front end of the limiting rod 1.4. At this time, the cutting mechanism 6 cuts off the part of the bar stock exposed in the feed hole 5. The limiting rod 1.4 can ensure that the length of the bar stock cut each time is consistent. The length of the bar stock cut each time can be finely adjusted by adjusting the front-back position of the limiting rod 1.4 on the limiting seat 1.3.

[0088] The center line of the limiting rod 1.4 coincides with the center line of the feed hole 5;

[0089] The top of the frame 1.1 is provided with a front support 1.5 and a rear support 1.6, which are connected by a tension screw 1.7 and a tension nut 1.8. The tension screw 1.7 can tighten the front support 1.5 and the rear support 1.6, thereby improving the overall strength of the frame 1.1.

[0090] There are two front supports 1.5 and two rear supports 1.6, with the two front supports 1.5 and the two rear supports 1.6 respectively located on the left and right sides of the top of the frame 1.1;

[0091] The frame 1.1 is provided with a cutting guide sleeve 1.9 on one side of the feed hole 5. The cutting guide sleeve 1.9 is arranged in the left-right direction, and a sliding guide groove 1.10 is provided behind the cutting guide sleeve 1.9 in the front-back direction.

[0092] The feed hole 5 is located between the cutting guide sleeve 1.9 and the fixed mold 4;

[0093] A receiving groove 1.11 is provided below the fixed mold 4. The receiving groove 1.11 is arranged at an angle in the left and right direction. The formed steel ball falls into the receiving groove and is transported outward to the designated position.

[0094] The slider mechanism 2 includes a slider body 2.1 and a first connecting rod 2.2. The slider body 2.1 is located in front of the first connecting rod 2.2. The front end of the first connecting rod 2.2 is hinged to the rear side of the slider body 2.1. The rear end of the first connecting rod 2.2 is provided with a first shaft hole 2.3.

[0095] The first connecting rod 2.2 has a first pin hole 2.4 at its front end, and a first connecting rod pin 2.5 is inserted into the first pin hole 2.4. The first connecting rod 2.2 is hinged to the slider body 2.1 through the first connecting rod pin 2.5.

[0096] The front end of the first connecting rod 2.2 and the slider 2.1 are fitted together by an arc surface;

[0097] The first connecting rod 2.2 has a first arc-shaped hinge head 2.6 at its front end, and the slider body 2.1 has a first arc-shaped groove 2.7 at its rear side. The first arc-shaped hinge head 2.6 and the first arc-shaped groove 2.7 cooperate with each other.

[0098] A first bearing 2.8 is provided between the first arc-shaped hinge head 2.6 and the first arc-shaped groove 2.7;

[0099] A first connecting rod pin bushing 2.9 is provided between the first pin hole 2.4 and the first connecting rod pin 2.5;

[0100] A first bushing 2.10 is provided inside the first shaft hole 2.3;

[0101] An anti-rotation groove 2.11 is radially formed on one end face of the first connecting rod pin 2.5. An anti-rotation strip 2.12 is provided in the anti-rotation groove 2.11. The anti-rotation strip 2.12 is connected to the first connecting rod pin 2.5 by a first screw 2.13 and the anti-rotation strip 2.12 is connected to the slider body 2.1 by a second screw 2.14.

[0102] The first screw 2.13 is located at the center line of the first connecting rod pin 2.5, and the second screw 2.14 is located below the first screw 2.13;

[0103] The slider body 2.1 includes a slider base 2.1.1, and sliding plates 2.1.2 are provided extending outward from the left and right sides of the slider base 2.1.1. The sliding plates 2.1.2 are fitted into the sliding grooves 1.2.3;

[0104] The slider base 2.1.1 is square, the top surface of the slide plate 2.1.2 is flush with the top surface of the slider base 2.1.1, and the slider body 2.1 is T-shaped overall;

[0105] The outer surface of the slider body 2.1 is provided with multiple copper guide plates 2.15. By setting the copper guide plates, the friction force of the slider body moving back and forth can be greatly reduced.

[0106] The upper and lower sides of the slide plate 2.1.1 are respectively engaged with the bottom surface of the upper pressure plate 1.2.2 and the top surface of the lower support guide plate 1.2.1, and the left and right sides of the slider base 2.1.1 are respectively engaged with the inner sides of the left and right lower support guide plates 1.2.1.

[0107] The cutting mechanism 6 includes a cutting guide post 6.1 and a guide rod 6.2. The cutting guide post 6.1 is disposed inside the cutting guide sleeve 1.9, and the guide rod 6.2 is disposed inside the sliding guide groove 1.10. An S-plate 6.3 is disposed at the front end of the guide rod 6.2, and a second connecting rod 6.4 is hinged to the rear end of the guide rod 6.1. A roller 6.5 is disposed on the outside of the cutting guide post 6.1, and the roller 6.5 cooperates with the S-plate 6.3.

[0108] A cutting blade 6.6 is provided on the inner side of the cutting guide post 6.1;

[0109] The cutting blade 6.6 and the cutting guide post 6.1 are either an integral mechanism or a separate structure;

[0110] The rear end of the second connecting rod 6.4 is provided with an eccentric sleeve hole 6.7, an eccentric sleeve 6.8 is provided inside the eccentric sleeve hole 6.7, and a second shaft hole 6.9 is provided on the eccentric sleeve 6.8. The second shaft hole 6.9 and the eccentric sleeve hole 6.7 are eccentrically arranged.

[0111] The eccentric sleeve 6.8 is provided with multiple pressure blocks 6.10 on both the left and right sides, and the eccentric sleeve 6.8 is restricted within the eccentric sleeve hole 6.7 by the pressure blocks 6.9 on the left and right sides;

[0112] An eccentric bearing sleeve 6.11 is provided between the eccentric sleeve 6.6 and the eccentric sleeve hole 6.5;

[0113] The second connecting rod 6.4 has a second pin hole 6.12 at its front end, and a second connecting rod pin 6.13 is inserted into the second pin hole 6.12. The second connecting rod 6.4 is hinged to the guide rod 6.2 through the second connecting rod pin 6.13.

[0114] The front end of the second connecting rod 6.4 is engaged with the guide rod 6.2 via an arc surface;

[0115] The second connecting rod 6.4 has a second arc-shaped hinge head 6.14 at its front end, and the guide rod 6.2 has a second arc-shaped groove 6.15 at its rear side. The second arc-shaped hinge head 6.14 and the second arc-shaped groove 6.15 cooperate with each other.

[0116] A second bearing 6.16 is provided between the second arc-shaped hinge head 6.14 and the second arc-shaped groove 6.15;

[0117] A second connecting rod pin bushing 6.17 is provided between the second pin hole 6.12 and the second connecting rod pin 6.13;

[0118] The guide rod 6.2 includes two movable blocks 6.2.1, one at the front and one at the back. A screw sleeve 6.2.2 is provided inside the movable block 6.2.1, and a double-headed screw 6.2.3 is provided between the two screw sleeves 6.2.2.

[0119] The threads of the two screw sleeves 6.2.2 are turned in opposite directions. The distance between the two movable blocks can be adjusted by rotating the double-ended screw.

[0120] The S-plate 6.3 includes a connecting seat 6.3.1, and an S-plate body 6.3.2 is provided on the front side of the connecting seat 6.3.1.

[0121] The connector 6.3.1 is fixedly installed at the front end of the front movable block 6.2.1;

[0122] The connecting seat 6.3.1 has a positioning boss 6.3.4 at its rear end, and the front movable block 6.2.1 has a positioning hole 6.2.4 at its front end. The positioning boss 6.3.4 and the positioning hole 6.2.4 cooperate with each other.

[0123] The inner surface of the S-plate 6.3.2 has a three-section structure, including an outer horizontal section 6.3.2.1, a middle inclined section 6.3.2.2, and an inner horizontal section 6.3.2.3 arranged sequentially from front to back;

[0124] A pressure ring 6.18 is provided on the outer side of the cutting guide post 6.1. The pressure ring 6.18 is located outside the sliding guide groove 1.10. The cutting guide post 6.1 and the pressure ring 6.18 are connected by two sets of connecting screws 6.19. A return spring 6.20 is fitted on the connecting screw 6.19. The return spring 6.20 is restricted between the sliding guide groove 1.10 and the pressure ring 6.18. When the cutting guide post cuts the bar, it can return to its original position under the action of the return spring.

[0125] The feeding mechanism 7 includes a feeding frame 7.1, which is fixedly mounted on the front side of the frame 1.1. The feeding frame 7.1 is equipped with an upper roller assembly 7.2 and a lower roller assembly 7.3, which are arranged vertically opposite to each other. The upper roller assembly 7.2 includes two upper bearing seats 7.2.1, with an upper roller shaft 7.2.2 passing between them. An upper roller 7.2.3 is mounted on the upper roller shaft 7.2.2. The lower roller assembly 7.3 includes two lower bearing seats 7.3.1, with a lower roller shaft 7.3.2 passing between them. A lower roller 7.3.3 is mounted on the lower roller shaft 7.3.2.

[0126] The feed rack 7.1 is provided with two left and right bearing seat slide grooves 7.4, which are arranged vertically. Two upper bearing seats 7.2.1 are respectively set in the left and right bearing seat slide grooves 7.4, and the upper bearing seats 7.2.1 can slide up and down along the bearing seat slide grooves 7.4.

[0127] A crossbeam 7.2.4 is connected between the two upper bearing seats 7.2.1 on the left and right sides. A clamping cylinder 7.5 is installed above the crossbeam 7.2.4, and the lower end of the clamping cylinder 7.5 is connected to the crossbeam 7.2.4. The clamping cylinder can make the upper roller assembly clamp the bar.

[0128] There are two sets of the upper roller assembly 7.2 and the lower roller assembly 7.3, and the two sets of upper roller assembly 7.2 and the two sets of lower roller assembly 7.3 are arranged in front of and behind each other;

[0129] An upper gear 7.2.5 is also provided on the upper roller shaft 7.2.2, and a lower gear 7.3.4 is provided on the lower roller shaft 7.3.2. The upper gear 7.2.5 and the lower gear 7.3.4 are positioned correspondingly, and the upper gear 7.2.5 and the lower gear 7.3.4 mesh with each other.

[0130] The feeding frame 7.1 is equipped with a feeding fulcrum shaft 7.6, which in turn is equipped with a feeding hub 7.7 and a feeding swing arm 7.8. The feeding hub 7.7 is equipped with a feeding gear 7.9 and a feeding ratchet 7.10. The feeding gear 7.9 is located between two lower gears 7.3 and 7.4, and meshes with both gears simultaneously. The upper end of the feeding swing arm 7.8 is equipped with a pawl shaft 7.11, which is equipped with a feeding pawl 7.12. The feeding pawl 7.12 is located above the feeding ratchet 7.10 and engages with it. The engagement of the feeding pawl and ratchet allows the feeding roller to rotate in one direction, ensuring smooth feeding of the bar stock.

[0131] Bearings 7.13 are provided between the feeding hub 7.7 and the feeding fulcrum shaft 7.6, and between the feeding swing arm 7.8 and the feeding fulcrum shaft 7.6.

[0132] A torsion spring 7.14 is fitted on the pawl pin 7.11, and the torsion spring 7.14 is located between the feeding pawl 7.12 and the feeding swing rod 7.8;

[0133] A fixed shaft 7.15 is provided behind the feeding pivot shaft 7.6. The fixed shaft 7.15 is fixedly mounted on the frame 1.1. A feeding head 7.16 is hinged to the fixed shaft 7.15. A feeding cam 7.17 is provided behind the feeding head 7.16. A heading roller 7.18 is provided at the upper end of the feeding head 7.16. The heading roller 7.18 cooperates with the feeding cam 7.17. The feeding head 7.16 is connected to the feeding swing arm 7.8 through a feeding pull rod 7.19.

[0134] The feeding cam 7.17 is provided with a third shaft hole 7.20;

[0135] The feeding head 7.16 includes a head ear 7.16.1, a head intermediate bracket 7.16.2, and a head adjusting plate 7.16.3 arranged sequentially from top to bottom. The head roller 7.18 is mounted on the head ear 7.16.1 via a roller pin 7.21, and the head intermediate bracket 7.16.2 is fitted onto a fixed shaft 7.15.

[0136] The feeding lever 7.19 includes a front lever fork 7.19.1 and a rear lever fork 7.19.2, and an intermediate lever 7.19.3 is provided between the front lever fork 7.19.1 and the rear lever fork 7.19.2;

[0137] The two ends of the intermediate tie rod 7.19.3 are respectively connected to the front tie rod fork 7.19.1 and the rear tie rod fork 7.19.2 by threads, and tie rod nuts 7.19.4 are provided on both the front tie rod fork 7.19.1 and the rear tie rod fork 7.19.2;

[0138] The front end of the front traction fork 7.19.1 is hinged to the lower end of the feeding swing arm 7.8 via the front traction fork pin 7.19.5, and the rear end of the rear traction fork 7.19.2 is hinged to the heading adjustment plate 7.16.3 via the rear traction fork pin 7.19.6.

[0139] The leading adjustment plate 7.16.3 has a vertical leading adjustment groove 7.16.4 along its upper edge, and the rear tie rod fork pin 7.19.6 is inserted into the leading adjustment groove 7.19.4 in the left and right direction;

[0140] An adjusting screw 7.16.5 is vertically arranged inside the head adjustment groove 7.16.4, and the rear tie rod fork pin 7.19.5 is fitted onto the adjusting screw 7.16.5, and the two (the rear tie rod fork pin 7.19.5 and the adjusting screw 7.16.5) are threaded together.

[0141] The heading adjustment plate 7.16.3 is provided with a first spring pull shaft 7.22, and a second spring pull shaft 7.23 is provided in front of the first spring pull shaft 7.22. The second spring pull shaft 7.23 is fixedly installed on the frame 1.1, and a tension spring 7.24 is provided between the first spring pull shaft 7.22 and the second spring pull shaft 7.23.

[0142] A pawl cylinder 7.25 is installed on the feeding swing arm 7.8, and a push rod 7.26 is installed at the output end of the pawl cylinder 7.25. A push rod 7.27 is installed at the lower part of the feeding pawl 7.12, and the position of the push rod 7.27 corresponds to the position of the push rod 7.26. When the fast forging machine needs to perform continuous forging, the pawl cylinder drives the push rod to push the push rod forward, thereby disengaging the feeding pawl from the ratchet. At this time, the feeding mechanism does not feed, the cutting mechanism performs empty cutting, and the slider mechanism drives the movable die to continuously forge the steel ball.

[0143] The machine body 1 is provided with a transmission mechanism 8, which can simultaneously drive the slider mechanism 2, the cutting mechanism 6 and the feeding mechanism 7.

[0144] The transmission mechanism 8 includes an eccentric shaft 8.1, which is mounted on the frame 1.1 in a left-right direction. An eccentric wheel 8.2 is provided on the eccentric shaft 8.1, and the eccentric wheel 8.2 cooperates with the first shaft hole 2.3. A long key 8.3 is provided at one end of the eccentric shaft 8.1, and the eccentric shaft 8.1 cooperates with the second shaft hole 6.9 and the third shaft hole 7.20 simultaneously through the long key 8.3. When the eccentric shaft rotates, it can simultaneously drive the cutting mechanism and the feeding mechanism through the long key, and at the same time, it can drive the slider mechanism through the rotation of the eccentric wheel.

[0145] The transmission mechanism 8 also includes a motor 8.4, and the eccentric shaft 8.1 is driven by the motor 8.4;

[0146] A gearbox 8.5 is provided on the other side of the frame 1.1 (opposite to the cutting guide sleeve). The motor 8.4 is located on top of the gearbox 8.5. The gearbox 8.5 includes an input end and an output end. The input end of the gearbox 8.5 is provided with a first pulley 8.6, and the output end of the motor 8.4 is provided with a second pulley 8.7. The first pulley 8.6 and the second pulley 8.7 are connected by a transmission belt 8.8. The output end of the gearbox 8.5 is connected to one end of an eccentric shaft 8.1 (or the eccentric shaft 8.1 can be directly used as the output end of the gearbox 8.5).

[0147] The gearbox 8.5 includes a gearbox body 8.5.1. A first drive shaft 8.5.2 is mounted on the gearbox body 8.5.1 in a left-right direction. The first drive shaft 8.5.2 is located behind the eccentric shaft 8.1. A second drive shaft 8.5.3 and a third drive shaft 8.5.4 are arranged between the eccentric shaft 8.1 and the first drive shaft 8.5.2. One end of the first drive shaft 8.5.2 extends out of the gearbox body 8.5.1 (serving as the input end of the gearbox 8.5). A first gear 8.5.5 is mounted on the first drive shaft 8.5.2. A second gear 8.5.6 is provided on the drive shaft 8.5.3, a third gear 8.5.7 and a fourth gear 8.5.8 are provided on the second drive shaft 8.5.4, one end of the eccentric shaft 8.1 extends into the gearbox 8.5.1 (the eccentric shaft 8.1 serves as the input end of the gearbox 8.5) and a fifth gear 8.5.9 is provided at that end, the first gear 8.5.5 meshes with the second gear 8.5.6, the second gear 8.5.6 meshes with the third gear 8.5.7, and the fourth gear 8.5.8 meshes with the fifth gear 8.5.9;

[0148] The transmission belt 8.8 adopts a V-type coupling belt;

[0149] The movable mold 3 includes a movable mold adjusting block 3.1, which is fixedly disposed on the front side of the slider body 2.1. A movable mold wedge 3.2 is disposed on the movable mold adjusting block 3.1, a movable mold vertical moving plate 3.3 is disposed on the movable mold wedge 3.2, a movable mold connecting block 3.4 is disposed on the movable mold connecting block 3.4, and a movable mold 3.5 is disposed on the movable mold 3.5.

[0150] The moving mold adjusting block 3.1 includes an adjusting block body 3.1.1. A wedge-shaped groove 3.1.2 is vertically formed on the front side of the adjusting block body 3.1.1. The moving mold wedge 3.2 is disposed in the wedge-shaped groove 3.1.2. The moving mold wedge 3.2 and the wedge-shaped groove 3.1.2 are engaged by a wedge surface.

[0151] The adjusting block body 3.1.1 is provided with mounting connecting plates 3.1.3 on the left and right sides, and the mounting connecting plates 3.1.3 are connected to the slider body 2.1 by bolts;

[0152] The top of the adjusting block body 3.1.1 is provided with a moving mold lever hole 3.1.4 facing downwards, and the center of the adjusting block body 3.1.1 is provided with a top impact hole 3.1.5 along the front-back direction. The moving mold lever hole 3.1.4 and the top impact hole 3.1.5 are connected.

[0153] The wedge-shaped groove 3.1.2 is provided with four first screw holes 3.1.6 located at the top, bottom, left, and right.

[0154] The moving mold wedge 3.2 includes a wedge body 3.2.1, on which four first elongated holes 3.2.2 are provided, which are arranged vertically, and the positions of the four first elongated holes 3.2.2 correspond to the positions of the four first screw holes 3.1.6 respectively.

[0155] The wedge body 3.2.1 has a first impact rod hole 3.2.3 at its center along the front-back direction. The first impact rod hole 3.2.3 is an elongated hole arranged vertically.

[0156] The moving mold vertical moving plate 3.3 includes a moving plate body 3.3.1, on which four second elongated holes 3.3.2 are provided, arranged vertically in all directions. The positions of the four second elongated holes 3.3.2 correspond to the positions of the four first elongated holes 3.2.2. The moving mold wedge block 3.2 and the moving mold vertical moving plate 3.3 are connected to the moving mold adjusting block 3.1 by screws.

[0157] The movable plate body 3.3.1 has a second top-impact rod hole 3.3.3 at its center along the front-back direction. The second top-impact rod hole 3.3.3 is a circular hole.

[0158] The movable plate body 3.3.1 is also provided with four second screw holes 3.3.4 located at the top, bottom, left, and right.

[0159] The movable plate body 3.3.1 has a first positioning groove 3.3.5 on its front side;

[0160] The moving mold connecting block 3.4 includes a connecting block body 3.4.1, and a positioning boss 3.4.2 is provided on the rear side of the connecting block body 3.4.1. The positioning boss 3.4.2 cooperates with the first positioning groove 3.3.4.

[0161] The connecting block body 3.4.1 is provided with four third screw holes 3.4.3 on the top, bottom, left, and right sides. The positions of the four third screw holes 3.4.3 correspond to the positions of the four second screw holes 3.4.3 respectively. The moving mold connecting block 3.4 is connected to the moving plate body 3.3 by screws.

[0162] The front side of the receiving block body 3.4.1 is provided with a second positioning groove 3.4.4, and the moving mold 3.5 is disposed in the second positioning groove 3.4.4;

[0163] The second positioning groove 3.4.4 is provided with four fourth screw holes 3.4.5 in the upper, lower, left and right directions. The moving mold 3.5 is connected to the moving mold connecting block 3.4 by screws.

[0164] The connecting block body 3.4.1 has a third top-impact rod hole 3.4.6 at its center along the front-back direction. The third top-impact rod hole 3.4.6 is a circular hole.

[0165] The first positioning groove 3.3.4, the positioning boss 3.4.2, and the second positioning groove 3.4.4 are all circular, and the centers of the first positioning groove 3.3.4, the positioning boss 3.4.2, and the second positioning groove 3.4.4 are located on the same straight line;

[0166] The center lines of the impact head hole 3.1.5, the first impact rod hole 3.2.3, the second impact rod hole 3.3.3, and the third impact rod hole 3.4.6 coincide;

[0167] A movable mold ejection mechanism 9 is provided at the position of the movable mold 3, which can eject the steel ball from the movable mold 3.

[0168] The movable mold ejection mechanism 9 includes a movable mold lever 9.1 and an ejector head 9.2. The movable mold lever 9.1 is vertically inserted into the movable mold lever hole 3.1.4, and the ejector head 9.2 is disposed in the ejector head hole 3.1.5. The lower part of the movable mold lever 9.1 cooperates with the ejector head 9.2, and can push the ejector head 9.2 forward when the movable mold lever 9.1 rotates. An ejector rod 9.3 is connected to the front end of the ejector head 9.2. The ejector rod 9.3 is sequentially inserted into the first ejector rod hole 3.2.3, the second ejector rod hole 3.3.3, and the third ejector rod hole 3.4.6 from back to front. A movable mold ejection contact rod 9.4 is provided laterally at the upper end of the movable mold lever 9.1. The outer end of the movable mold ejection contact rod 9.4... An ejector rod shaft 9.5 is provided upwards, and an ejector rod roller 9.6 is provided on the ejector rod shaft 9.5. The height of the ejector rod roller 9.6 is higher than that of the slider body 2.1. The movable mold ejection mechanism 9 also includes a collision block 9.7, which is fixedly provided on the side of the frame 1.1 corresponding to the collision rod roller 9.6. The collision block 9.7 is located behind the collision rod roller 9.6 and its height corresponds to that of the collision rod roller 9.6. The collision rod roller 9.6 and the collision block 9.7 cooperate with each other. During the backward movement of the slider body, the collision rod roller and the collision block collide, causing the movable mold ejector rod to drive the movable mold lever to rotate. When the movable mold lever rotates, it pushes the ejector head forward, thereby causing the ejector rod on the ejector head to eject the steel ball in the movable mold.

[0169] The top impact head 9.2 has a first lever insertion hole 9.8 vertically opened along its upper edge, and the lower part of the moving mold lever 9.8 is inserted into the first lever insertion hole 9.8;

[0170] The lower part of the moving mold lever 9.1 is provided with a first arc-shaped groove 9.9, and the top impact head 9.2 is inserted into the first arc-shaped groove 9.9;

[0171] The mating surface between the contact block 9.7 and the contact rod roller 9.6 is an inclined surface;

[0172] The first return spring 9.10 is fitted on the push rod 9.3, and the first return spring 9.10 is restricted between the push head 9.2 and the moving mold block 3.4;

[0173] A second return spring is provided between the moving mold ejector rod 9.4 and the slider body 2.1;

[0174] The movable mold ejection mechanism 9 also includes a lever bracket 9.11, which is fixedly mounted on the top of the movable mold adjusting block 3.1. A lever fixing sleeve 9.12 is provided on the lever bracket 9.11, which is fitted onto the upper part of the movable mold lever 9.1. The movable mold lever can be effectively fixed by the lever bracket and the lever fixing sleeve.

[0175] A fixed mold ejection mechanism 10 is provided at the fixed mold 4 position, and the fixed mold ejection mechanism 10 can eject the steel ball from the fixed mold 4.

[0176] The fixed mold ejection mechanism 10 includes a fixed mold lever 10.1 and a fixed mold ejector rod 10.2. The fixed mold lever 10.1 is arranged in the left-right direction, and the fixed mold ejector rod 10.2 is arranged in the front-back direction. The fixed mold lever 10.1 and the front of the fixed mold ejector rod 10.2 cooperate with each other. When the fixed mold lever 10.1 rotates, it can push the fixed mold ejector rod 10.2 to move backward. An ejector rod shoulder 10.3 is provided on the outer end of the fixed mold lever 10.1. An ejector cylinder is provided behind the ejector rod shoulder 10.3. The piston rod end of the ejector cylinder is hinged to the ejector rod shoulder 10.3. When the ejector cylinder extends or retracts, it can drive the fixed mold lever to rotate.

[0177] The front part of the fixed mold ejector rod 10.2 is provided with a second lever insertion hole 10.4 in the left-right direction, and the inner end of the fixed mold lever 10.1 is inserted into the second lever insertion hole 10.4;

[0178] The inner end of the fixed mold lever 10.1 is provided with a second arc-shaped groove 10.5, and the front part of the fixed mold ejector rod 10.2 is inserted into the second arc-shaped groove 10.5;

[0179] The fixed mold ejection mechanism 10 also includes two left and right fixed mold ejection brackets 10.6, and the fixed mold lever 10.1 is supported on the two left and right fixed mold ejection brackets 10.6;

[0180] The two fixed mold ejector brackets 10.6 on the left and right are fixedly installed on the front side of the frame 1.1;

[0181] A third return spring 10.7 is fitted onto the fixed mold ejector rod 10.2;

[0182] Another embodiment of the fixed mold ejection mechanism 10 includes a first hinge seat 10.8 and a second hinge seat 10.9. The first hinge seat 10.8 is fixed to the front side of the frame 1.1, and the second hinge seat 10.9 is fixedly mounted on the slider body 2.1. A rocker arm 10.10 is hinged to the first hinge seat 10.8 and is arranged vertically. A pull rod 10.11 is hinged to the second hinge seat 10.9 and is arranged in the front-back direction. The front end of the pull rod 10.11 is connected to the lower part of the rocker arm 10.10, and a fixed mold ejector rod 10.2 is connected to the upper part of the rocker arm 10.10 and is arranged in the front-back direction.

[0183] The swing rod 10.10 is provided with an upper through hole 10.12 and a lower through hole 10.13, and the front ends of the fixed mold ejector rod 10.2 and the pull rod 10.11 are respectively inserted into the upper through hole 10.12 and the lower through hole 10.13;

[0184] The front sections of the fixed mold ejector rod 10.2 and the pull rod 10.11 are both threaded sections, and both the fixed mold ejector rod 10.2 and the pull rod 10.11 are connected to the swing rod 10.10 through the adjusting nut 10.14;

[0185] A third return spring 10.7 is fitted onto the fixed mold ejector rod 10.2;

[0186] A clamping mechanism 11 is provided above the fixed mold 4. The clamping mechanism 11 is located on the other side of the feed hole 5. The clamping mechanism 11 can cooperate with the cutting mechanism 6 to clamp and send the cut bar material to the position of the fixed mold 4.

[0187] The clamping mechanism 11 includes a sliding base plate support 11.1 and a top wheel support 11.2. The sliding base plate support 11.1 is located above the fixed mold 4, and the top wheel support 11.2 is located on the top of the movable mold 3. A slider guide groove 11.3 is vertically arranged on the rear side of the sliding base plate support 11.1. A slider 11.4 is arranged in the slider guide groove 11.3. A pulley guide block 11.5 is arranged on the rear side of the slider 11.4. A pulley shaft 11.6 is inserted through the front side of the top wheel support 11.2 in the left-right direction. A pulley 11.7 is arranged on the pulley shaft 11.6. The pulley 11.7 cooperates with the pulley guide block 11.5. A lever 11.8 is hinged between the pulley guide blocks 11.5.

[0188] The pulley guide block 11.5 includes a mounting base plate 11.5.1, on which an arc-shaped guide plate 11.5.2 is provided, and the arc-shaped guide plate 11.5.2 cooperates with the pulley 11.7;

[0189] A material-pulling spring 11.9 is provided between the upper end of the lever 11.8 and one side of the frame 1.1;

[0190] The upper part of the lever 11.8 is hinged to the pulley guide block 11.5 via a pin;

[0191] The mounting base plate 11.5.1 and the slider 11.4 are connected by bolts.

[0192] A clutch 12 is provided at the end of the first drive shaft 8.5.2, and the clutch 12 is connected to the first pulley 8.6.

[0193] In addition to the above embodiments, the present invention also includes other embodiments. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.

Claims

1. A movable die ejection mechanism for a high-speed steel ball forging machine, characterized in that: It includes a moving mold lever (9.1) and a top impact head (9.2). The moving mold lever (9.1) is arranged vertically, and the top impact head (9.2) is arranged in the front-back direction. The lower part of the moving mold lever (9.1) cooperates with the top impact head (9.2) so that the top impact head (9.2) can be pushed forward when the moving mold lever (9.1) rotates. The front end of the impact head (9.2) is connected to an impact rod (9.3); The upper end of the moving mold lever (9.1) is provided with a moving mold ejection rod (9.4) in the transverse direction, and the outer end of the moving mold ejection rod (9.4) is provided with an ejection rod shaft (9.5) in the upward direction, and an ejection rod roller (9.6) is provided on the ejection rod shaft (9.5). The active mold ejection mechanism (9) also includes a contact block (9.7), the position of which corresponds to the position of the contact rod roller (9.6), and the contact rod roller (9.6) cooperates with the contact block (9.7); The top impact head (9.2) has a first lever insertion hole (9.8) vertically opened along its upper edge, and the lower part of the moving mold lever (9.1) is inserted into the first lever insertion hole (9.8); The moving mold lever (9.1) has a first arc-shaped groove (9.9) at its lower part, and the top impact head (9.2) is inserted into the first arc-shaped groove (9.9).

2. The ejection mechanism of the movable die of a high-speed forging machine for steel balls according to claim 1, characterized in that: The mating surface between the contact block (9.7) and the contact rod roller (9.6) is an inclined surface.

3. The ejection mechanism of the movable die of a high-speed forging machine for steel balls according to claim 1, characterized in that: The first return spring (9.10) is fitted onto the impact rod (9.3).

4. The ejection mechanism of the movable die of a high-speed forging machine for steel balls according to claim 1, characterized in that: A second reset spring is connected to the moving mold ejection rod (9.4).

5. The ejection mechanism of the movable die of a high-speed forging machine for steel balls according to claim 1, characterized in that: The movable mold ejection mechanism (9) also includes a lever bracket (9.11), on which a lever fixing sleeve (9.12) is provided, and the lever fixing sleeve (9.12) is fitted onto the upper part of the movable mold lever (9.1).

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