阅读说明：本技术 一种可调角度的大型三通模锻装置及其模锻方法 (Angle-adjustable large three-way die forging device and die forging method thereof ) 是由 辛绍杰 张栋 张晓峰 曹峰华 任杰 孙群 于 2020-05-25 设计创作，主要内容包括：本发明公开了一种可调角度的大型三通模锻装置及其模锻方法,其技术方案要点是：一种可调角度的大型三通模锻装置,包括底板,所述底板设置有主推进装置、第一封堵装置、第二封堵装置、第一推拉装置、第二推拉装置、第三推拉装置、第四推拉装置、主模具。本发明能够根据实际生产或者特种装备的需要,在一定范围内任意调整模具分支管道的角度,并对局部进行长度补偿,保证各种角度三通的正常生产。(The invention discloses an angle-adjustable large three-way die forging device and a die forging method thereof, and the key points of the technical scheme are as follows: the large three-way die forging device comprises a base plate, wherein the base plate is provided with a main propelling device, a first plugging device, a second plugging device, a first push-pull device, a second push-pull device, a third push-pull device, a fourth push-pull device and a main die. The invention can randomly adjust the angle of the branch pipe of the mould in a certain range according to the requirements of actual production or special equipment, and locally compensate the length, thereby ensuring the normal production of the tee joint with various angles.)

1. An angle-adjustable large three-way die forging device comprises a bottom plate (000), and is characterized in that: the bottom plate (000) is provided with a main propulsion device (100), a first plugging device (200), a second plugging device (300), a first push-pull device (400), a second push-pull device (500), a third push-pull device (600), a fourth push-pull device (700) and a main mold (800);

the main die (800) comprises an upper cover plate (801), a first main vertical plate (802), a second main vertical plate (804), a first swinging vertical plate (803) hinged to the end part of the first main vertical plate (802), a fourth swinging vertical plate (807) hinged to the end part of the second main vertical plate (804), two second swinging vertical plates (805) and a third swinging vertical plate (806) which are hinged to each other, the first main vertical plate (802), the second main vertical plate (804), the first swinging vertical plate (803), the second swinging vertical plate (805), the third swinging vertical plate (806) and the fourth swinging vertical plate (807) enclose a Y-shaped cavity, the Y-shaped cavity is divided into a main cavity and two branch cavities, the first swinging vertical plate (803), the second swinging vertical plate (805), the third swinging vertical plate (806) and the fourth swinging vertical plate (807) are all vertically arranged along the rotating axial direction, the first main vertical plate (802) and the second main vertical plate (804) are fixedly connected to the bottom plate (000);

the main propelling device (100) comprises a propelling main machine box body (101) fixedly connected to the bottom plate (000), a propelling hydraulic push rod (102) arranged on the propelling main machine box body (101), a push plate (103) arranged on the propelling hydraulic push rod (102), and a punch (104) arranged on the push plate (103), wherein the moving direction of the propelling hydraulic push rod (102) moves towards the length direction of the first main vertical plate (802), and the punch (104) can be inserted into a main cavity;

the first plugging device (200) comprises a plugging chassis (203) arranged on the bottom plate (000), a plugging host box body (201) arranged on the plugging chassis (203) and rotating relative to the plugging chassis (203), a plugging rotating shaft (202) connected between the plugging chassis (203) and the plugging host box body (201), a plugging hydraulic push rod (204) arranged on the plugging host box body (201), a plugging plate (208) arranged at one end, far away from the plugging host box body (201), of the plugging hydraulic push rod (204), and a plug (209) arranged on the plugging plate (208) and capable of being arranged between a first swinging vertical plate (803) and a second swinging vertical plate (805) in a penetrating manner, the blocking plate (208) is rotatably connected with the blocking hydraulic push rod (204), the blocking plate (208) and the blocking main case body (201) are both vertically arranged in the rotating axial direction; the structure of the second plugging device (300) is consistent with that of the first plugging device (200), and a plug (209) in the second plugging device (300) can be arranged between the third swinging vertical plate (806) and the fourth swinging vertical plate (807) in a penetrating manner;

the first push-pull device (400) comprises a push-pull chassis (403) arranged on the bottom plate (000), a push-pull host box body (401) arranged on the push-pull chassis (403) and rotating relative to the push-pull chassis (403), a push-pull rotating shaft (402) connected between the push-pull chassis (403) and the push-pull host box body (401), and a push-pull hydraulic push rod (404) arranged on the push-pull host box body (401), wherein one end, far away from the push-pull host box body (401), of the push-pull hydraulic push rod (404) is rotatably connected to the side wall of the first swinging vertical plate (803) and drives the first swinging vertical plate (803) to rotate relative to the first main vertical plate (802), and the rotating axial directions of the push-pull host box body (401; the structures of the second push-pull device (500), the third push-pull device (600) and the fourth push-pull device (700) are the same as the structure of the first push-pull device (400), and push-pull hydraulic push rods (404) of the second push-pull device (500), the third push-pull device (600) and the fourth push-pull device (700) are respectively connected with the fourth swinging vertical plate (807), the second swinging vertical plate (805) and the third swinging vertical plate (806).

2. The large three-way adjustable angle die forging device according to claim 1, wherein: one end, far away from the push-pull main machine box body (401), of the push-pull hydraulic push rod (404) is provided with a connecting piece (405), the connecting piece (405) is rotatably connected with a sliding block (8031), and sliding grooves (8032) for sliding of the corresponding sliding block (8031) are formed in the first swinging vertical plate (803), the second swinging vertical plate (805), the third swinging vertical plate (806) and the fourth swinging vertical plate (807).

3. The large three-way adjustable angle die forging apparatus according to claim 2, wherein: the first swing vertical plate (803) is slidably connected with a moving plate (8033) which can stretch out and draw back relative to the first swing vertical plate (803), a groove for stretching out and drawing back the moving plate (8033) is formed in the first swing vertical plate (803), a motor (8036) which drives the moving plate (8033) to stretch out and draw back is arranged on the first swing vertical plate (803), a gear (8035) is arranged at the output end of the motor (8036), a rack (8034) which is meshed with the gear (8035) is arranged on the moving plate (8033), the moving plate (8033) can extend away from the hinged end of the first swing vertical plate (803) and the first main vertical plate (802), and the structures of the second swing vertical plate (805), the third swing vertical plate (806) and the fourth swing vertical plate (807) are consistent with the structure of the first swing vertical plate (803).

4. The large three-way adjustable angle die forging device according to claim 1, wherein: one end of the blocking plate (208) deviating from the plug (209) is provided with a connecting protrusion (207), the upper end face and the lower end face of the connecting protrusion (207) are both provided with a pin shaft (206) which is vertically arranged, and the blocking hydraulic push rod (204) is provided with a mounting part (205) which is rotatably connected with the pin shaft (206).

5. The large three-way adjustable angle die forging device according to claim 1, wherein: the pushing hydraulic push rods (102) are arranged to be a plurality of, and the pushing hydraulic push rods (102) are uniformly distributed around the punch heads (104) and connected with the push plates (103).

6. The large three-way adjustable angle die forging device according to claim 1, wherein: the push plate (103) can be inserted between the first main vertical plate (802) and the second main vertical plate (804), and two side walls of the push plate (103) are attached to the opposite side walls of the first main vertical plate (802) and the second main vertical plate (804).

7. The die forging method of the large three-way die forging device with the adjustable angle is characterized in that: comprises the following steps: step 1, adjusting the angles and the lengths of a first swinging vertical plate (803), a second swinging vertical plate (805), a third swinging vertical plate (806) and a fourth swinging vertical plate (807) in a main die (800);

step 2, heating a metal blank material to be extruded to 1200 ℃ in a heating furnace, and then clamping and placing the metal blank material into a main cavity formed by a first main vertical plate (802), a second main vertical plate (804) and a bottom plate (000) by a clamp;

step 3, closing the upper cover plate (801), and simultaneously starting the main propulsion device (100), the first plugging device (200) and the second plugging device (300) to work; the lower surface of the upper cover plate (801) covers the upper surfaces of a first main vertical plate (802), a second main vertical plate (804), a first swinging vertical plate (803), a second swinging vertical plate (805), a third swinging vertical plate (806) and a fourth swinging vertical plate (807), and the top of the upper cover plate (801) is pressed by an external press to prevent the upper cover plate (801) from being pushed open or moving upwards in the process; a hydraulic mechanism in the main propelling device (100) drives four propelling hydraulic push rods (102) and a push plate (103), a punch (104) and the like to move forwards, so that the front end face of the push plate (103) is flush with the outer end face of a main cavity of the main die (800), the hydraulic mechanisms of the first plugging device (200) and the second plugging device (300) drive and enable the front end face of the plugging plate 208 to be attached and pressed with the outer end face of a corresponding branch cavity of the main die (800), and the plug 209 extends into the corresponding branch cavity;

step 4, starting extrusion, wherein a hydraulic mechanism in the main propelling device (100) drives four propelling hydraulic push rods (102), a push plate (103) and a punch (104) to move forwards, so that the push plate (103) and the punch (104) enter a main cavity, contact and extrude a high-temperature metal material to deform the high-temperature metal material, the material flows continuously to two branch cavities after being extruded and deformed, and fills the space of the branch cavities until the main propelling device (100) advances to a preset position, the main cavity and the branch cavities are filled with the extruded metal material, and continuous propulsion is stopped;

and 5, after the metal is cooled, the hydraulic mechanisms of the main propulsion device (100), the first plugging device (200) and the second plugging device (300) respectively drive the push plate (103), the punch (104), the plugging plate (208), the plug (209) and the like to retreat from the die cavity, the main propulsion device moves to the outside of the main die (800), the pressing device at the top of the upper cover plate (801) is removed, the extruded Y-shaped tee joint is taken out, the Y-shaped tee joint is transferred to a machining area to perform further machining work such as drilling, reaming, trimming and the like, and finally the product is completely formed.

8. The die forging method of the large-scale three-way die forging device with the adjustable angle, according to claim 1, is characterized in that: in step 1, when the Y-shaped tee joints with different angles are required to be die forged, the first push-pull device (400), the second push-pull device (500), the third push-pull device (600) and the fourth push-pull device (700) start to work, a hydraulic mechanism in a push-pull main machine box body (401) drives a push-pull hydraulic push rod (404) and a connecting piece (405) to move forward, namely, a slide block (8031) is pushed forward, the slide block (8031) is forced to slide towards the direction of a blocking plate (208) in a track, and the first swing vertical plate (803), the second swing vertical plate (805), the third swing vertical plate (806) and the fourth swing vertical plate (807) rotate by taking hinged ends thereof as centers and are adjusted to corresponding positions; a motor in the push-pull chassis (403) drives the push-pull main machine box body (401) to rotate through a push-pull rotating shaft (402), and ensures that the first swing vertical plate (803), the second swing vertical plate (805), the third swing vertical plate (806) and the fourth swing vertical plate (807) are positioned and fixed at corresponding positions, and the adjustment of the positions of the two branch cavities relative to the main cavity is completed; then, the motors (8036) in the first swing vertical plate (803), the second swing vertical plate (805), the third swing vertical plate (806) and the fourth swing vertical plate (807) work to drive the corresponding moving plate (8033) to move outwards to extend out by a corresponding length, so as to ensure that the corresponding blocking plate (208) covers the branch cavity.

9. The die forging method of the large-scale three-way die forging device with the adjustable angle, according to claim 1, is characterized in that: in the step 4, after the angular positions of the first swing vertical plate (803), the second swing vertical plate (805), the third swing vertical plate (806) and the fourth swing vertical plate (807) are changed, a motor in the plugging chassis (203) drives the plugging main machine box body (201) to rotate by a corresponding angle, and then a hydraulic mechanism in the plugging main machine box body (201) drives the plugging plate (208) to attach to and press the outer end face of the branch cavity.

Technical Field

The invention relates to the field of large three-way die forging, in particular to an angle-adjustable large three-way die forging device and a die forging method thereof.

Background

The large Y-tee is one of the most important core components in the current thermal power generation and nuclear power generation systems, and its functions are used for transferring and shunting high-temperature and high-pressure steam, etc. With the continuous development of the power generation industry in China, higher and higher requirements are put forward on the production and manufacture of large-scale tees.

The current large Y-shaped three-way products mainly comprise two production modes of free forging and die forging. The free forging is generally performed by using a large hydraulic press, drilling holes in combination with machining, trimming and finally forming. The swaging is typically made using a die having a "Y" cavity, with a total of 3 holes in the Y die, one hole for advancing the punch 104, and two outer holes either directly closed or partially blocked inward with an insert to ensure that during extrusion, a cylindrical hole is extruded by the insert in both branches of the Y die to reduce the amount of post-machining drilling.

When the integral Y-shaped tee joint is forged in a free forging mode, the material utilization rate is low, the material is greatly wasted, the production cost is improved, the production period is long, and the method is not suitable for mass production.

When the die forging mode is adopted to forge the integral Y-shaped tee joint, the common die is provided with a fixed die cavity, one die can only produce one type of Y-shaped tee joint, and different tee joints cannot be produced by directly adjusting the angles of the branch die cavities. When a tee joint with a special angle is needed in practical application, a plurality of sets of dies with different branch angles are customized according to needs, and the cost is too high. In addition, because the tee joints with special angles are specially customized in small batches under many conditions, too many molds are not needed any more and can only be stored after the requirement is passed, and waste is caused.

Therefore, there is a need for an improvement in this technology to overcome the above-mentioned deficiencies.

Disclosure of Invention

The invention aims to provide an angle-adjustable large three-way die forging device and a die forging method thereof, which can randomly adjust the angle of a branch pipeline of a die within a certain range according to the requirements of actual production or special equipment, and compensate the length of a local part to ensure the normal production of three ways with various angles.

The technical purpose of the invention is realized by the following technical scheme: the large three-way die forging device with the adjustable angle comprises a bottom plate, wherein the bottom plate is provided with a main propelling device, a first plugging device, a second plugging device, a first push-pull device, a second push-pull device, a third push-pull device, a fourth push-pull device and a main die;

the main die comprises an upper cover plate, a first main vertical plate, a second main vertical plate, a first swinging vertical plate hinged to the end part of the first main vertical plate, a fourth swinging vertical plate hinged to the end part of the second main vertical plate, and two second swinging vertical plates and a third swinging vertical plate which are mutually hinged, wherein the first main vertical plate, the second main vertical plate, the first swinging vertical plate, the second swinging vertical plate, the third swinging vertical plate and the fourth swinging vertical plate surround a Y-shaped cavity in a surrounding manner, the Y-shaped cavity is divided into a main cavity and two branch cavities, the first swinging vertical plate, the second swinging vertical plate, the third swinging vertical plate and the fourth swinging vertical plate are vertically arranged in the axial direction in a rotating manner, and the first main vertical plate and the second main vertical plate are fixedly connected to the bottom plate;

the main propelling device comprises a propelling main machine box body fixedly connected to the bottom plate, a propelling hydraulic push rod arranged on the propelling main machine box body, a push plate arranged on the propelling hydraulic push rod and a punch head arranged on the push plate, the moving direction of the propelling hydraulic push rod moves towards the length direction of the first main vertical plate, and the punch head can be inserted into the main cavity;

the first plugging device comprises a plugging chassis arranged on the bottom plate, a plugging host box body which is arranged on the plugging chassis and rotates relative to the plugging chassis, a plugging rotating shaft connected between the plugging chassis and the plugging host box body, a plugging hydraulic push rod arranged on the plugging host box body, a plugging plate arranged at one end, far away from the plugging host box body, of the plugging hydraulic push rod, and a plug arranged on the plugging plate and capable of being arranged between the first swing vertical plate and the second swing vertical plate in a penetrating manner, wherein the plugging plate is rotatably connected to the plugging hydraulic push rod, and the axial rotating directions of the plugging plate and the plugging host box body are both vertically arranged; the structure of the second plugging device is consistent with that of the first plugging device, and a plug in the second plugging device can be arranged between the third swinging vertical plate and the fourth swinging vertical plate in a penetrating manner;

the first push-pull device comprises a push-pull chassis arranged on the bottom plate, a push-pull host box body arranged on the push-pull chassis and rotating relative to the push-pull chassis, a push-pull rotating shaft connected between the push-pull chassis and the push-pull host box body, and a push-pull hydraulic push rod arranged on the push-pull host box body, wherein one end of the push-pull hydraulic push rod, far away from the push-pull host box body, is rotatably connected to the side wall of the first swinging vertical plate and drives the first swinging vertical plate to rotate relative to the first main vertical plate, and the axial direction of rotation of the push-; the structures of the second push-pull device, the third push-pull device and the fourth push-pull device are consistent with the structure of the first push-pull device, and push-pull hydraulic push rods of the second push-pull device, the third push-pull device and the fourth push-pull device are respectively connected with the fourth swinging vertical plate, the second swinging vertical plate and the third swinging vertical plate.

The invention is further provided with: the push-pull hydraulic push rod is provided with a connecting piece at one end far away from the push-pull main machine box body, the connecting piece is rotatably connected with a sliding block, and the first swinging vertical plate, the second swinging vertical plate, the third swinging vertical plate and the fourth swinging vertical plate are all provided with sliding grooves for sliding corresponding to the sliding block.

The invention is further provided with: the first swing vertical plate is connected with a movable plate which can stretch out and draw back relative to the first swing vertical plate in a sliding mode, a groove for the movable plate to stretch out and draw back is formed in the first swing vertical plate, the first swing vertical plate is provided with a motor for driving the movable plate to stretch out and draw back, a gear is arranged at the output end of the motor, a rack meshed with the gear is arranged on the movable plate, the movable plate can be separated from the hinged end of the first swing vertical plate and the hinged end of the first main vertical plate in a back-to-back mode, and the structures of the second swing vertical plate, the third swing vertical plate and the fourth swing vertical plate are.

The invention is further provided with: the end of the plugging plate, which is far away from the plug, is provided with a connecting bulge, the upper end face and the lower end face of the connecting bulge are both provided with a pin shaft which is vertically arranged, and the plugging hydraulic push rod is provided with an installation part which is rotatably connected with the pin shaft.

The invention is further provided with: impel hydraulic push rod and set up to a plurality of, a plurality of impels hydraulic push rod be around the drift equipartition and with the push pedal is connected.

The invention is further provided with: the push plate can be inserted between the first main vertical plate and the second main vertical plate, and two side walls of the push plate are attached to the opposite side walls of the first main vertical plate and the second main vertical plate.

The invention is further provided with: a die forging method of a large three-way die forging device with an adjustable angle comprises the following steps: step 1, adjusting the angles and the lengths of a first swinging vertical plate, a second swinging vertical plate, a third swinging vertical plate and a fourth swinging vertical plate in a main die;

step 2, heating a metal blank material to be extruded to 1200 ℃ in a heating furnace, and then clamping and placing the metal blank material into a main cavity formed by a first main vertical plate, a second main vertical plate and a bottom plate by a clamp;

step 3, closing the upper cover plate, and simultaneously starting the main propelling device, the first plugging device and the second plugging device to work; the lower surface of the upper cover plate covers the upper surfaces of the first main vertical plate, the second main vertical plate, the first swinging vertical plate, the second swinging vertical plate, the third swinging vertical plate and the fourth swinging vertical plate, and the top of the upper cover plate is pressed by an external press to prevent the upper cover plate from being pushed open or moving upwards in the process; a hydraulic mechanism in the main propelling device drives four propelling hydraulic push rods, a push plate, a punch and the like to move forwards, so that the front end face of the push plate is flush with the outer end face of the main cavity of the main die, the hydraulic mechanisms of the first plugging device and the second plugging device drive the front end face of the plugging plate to be attached and pressed with the outer end face of the corresponding branch cavity of the main die, and the plug extends into the corresponding branch cavity;

step 4, starting extrusion, driving four pushing hydraulic push rods, a push plate and a punch to move forwards by a hydraulic mechanism in the main propelling device, enabling the push plate and the punch to enter the main cavity, contacting and extruding a high-temperature metal material to deform the high-temperature metal material, enabling the material to flow to two branch cavities continuously after being extruded and deformed, filling the spaces of the branch cavities until the main propelling device is propelled forwards to a preset position, filling the main cavity and the branch cavities with the extruded metal material, and stopping continuous propelling;

and 5, after the metal is cooled, respectively driving a push plate, a punch, a blocking plate, a plug and the like of each hydraulic mechanism of the main pushing device, the first blocking device and the second blocking device to retreat away from a die cavity, moving the main pushing device, the blocking plate, the plug and the like to the outside of the main die, moving a pressing device at the top of an upper cover plate, moving the upper cover plate, taking out the extruded Y-shaped tee joint, transferring the Y-shaped tee joint to a machining area to perform further machining work such as drilling, reaming, finishing and the like, and finally completely forming the product.

The invention is further provided with: in the step 1, when the die forging of Y-shaped tee joints with different angles is needed, the first push-pull device, the second push-pull device, the third push-pull device and the fourth push-pull device start to work, a hydraulic mechanism in a push-pull host box drives a push-pull hydraulic push rod and a connecting piece to move forwards together, namely, a slide block is pushed forwards to force the slide block to slide towards the direction of the blocking plate in a track, and the corresponding first swinging vertical plate, the second swinging vertical plate, the third swinging vertical plate and the fourth swinging vertical plate rotate by taking the hinged ends thereof as centers and are adjusted to corresponding positions; a motor in the push-pull chassis drives the push-pull main machine box body to rotate through a push-pull rotating shaft, ensures that the first swing vertical plate, the second swing vertical plate, the third swing vertical plate and the fourth swing vertical plate are positioned and fixed at corresponding positions, and completes the adjustment of the positions of the two branch cavities relative to the main cavity; then motors in the first swinging vertical plate, the second swinging vertical plate, the third swinging vertical plate and the fourth swinging vertical plate work to drive the corresponding moving plates to move outwards to extend out corresponding lengths so as to ensure that the corresponding blocking plates cover the branch cavities;

the invention is further provided with: in step 4, after the angular positions of the first swing vertical plate, the second swing vertical plate, the third swing vertical plate and the fourth swing vertical plate are changed, the motor in the plugging chassis drives the plugging host box body to rotate by a corresponding angle, and then the hydraulic mechanism in the plugging host box body drives the plugging plate to attach and press the outer end face of the branch cavity.

In conclusion, the invention has the following beneficial effects:

when the extrusion die is used, a metal blank material to be extruded is heated to the temperature in a heating furnace, is placed into the main cavity, is covered with the upper cover plate and is fixed through an external press. The hydraulic mechanism in the main propelling device drives four propelling hydraulic push rods, the push plate, the punch and the like to move forwards, so that the front end face of the push plate is flush with the outer end face of the main cavity of the main die, the hydraulic mechanisms of the first plugging device and the second plugging device drive the front end face of the plugging plate to be attached and pressed with the outer end face of the corresponding branch cavity of the main die, and the plug extends into the corresponding branch cavity. Then, the four pushing hydraulic push rods, the push plate and the punch are driven by a hydraulic mechanism in the main pushing device to move forwards completely, so that the push plate and the punch enter the main cavity, contact and extrude the high-temperature metal material to deform the high-temperature metal material, the material flows into the two branch cavities continuously after being extruded and deformed to fill the spaces of the branch cavities until the main pushing device pushes the main pushing device to a preset position, the main cavity and the branch cavities are filled with the extruded metal material, the pushing is stopped, and the large tee joint is processed.

After the angular positions of the first swing vertical plate, the second swing vertical plate, the third swing vertical plate and the fourth swing vertical plate are adjusted, the end parts of the branch cavities are not neat, the blocking plate is difficult to block the end faces of the branch cavities, and the moving plate is driven by the corresponding motor to extend, so that the blocking plate can block the corresponding end faces of the branch cavities.

According to the method and the device, the angle of the die branch pipeline can be adjusted randomly within a certain range according to the requirements of actual production or special equipment, the length compensation is carried out on the local part, and the normal production of the tee joint with various angles is guaranteed. Therefore, a plurality of large Y-shaped tees with different branch angles can be produced by only one set of equipment, the production and manufacturing cost is reduced, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a plan view of embodiment 1;

FIG. 3 is a schematic view of embodiment 1 with the upper cover plate hidden;

FIG. 4 is a schematic view of a master mold;

FIG. 5 is a schematic view of a partial structure of a main mold;

FIG. 6 is a cross-sectional view of the slide and runner;

FIG. 7 is a schematic view of the mounting structure of the moving plate;

FIG. 8 is a schematic structural view of the operating principle of the moving plate;

FIG. 9 is a schematic view of a main propulsion apparatus;

FIG. 10 is a schematic view of a closure plate and plug;

FIG. 11 is a schematic view of a first occluding device;

FIG. 12 is a schematic view of a plugging chassis and a plugging rotating shaft;

figure 13 is a schematic view of a first push-pull device;

FIG. 14 is a schematic view of the push-pull chassis and the push-pull rotating shaft;

FIG. 15 is a schematic view of a large Y-site.

The corresponding part names indicated by the numbers in the figures: 000. a base plate; 100. a main propulsion device; 101. pushing the main machine box body; 102. propelling a hydraulic push rod; 103. pushing the plate; 104. a punch; 200. a first occlusion device; 201. plugging the main machine box body; 202. blocking the rotating shaft; 203. plugging the chassis; 204. plugging the hydraulic push rod; 205. a mounting member; 206. a pin shaft; 207. a connecting projection; 208. a blocking plate; 209. a plug; 300. a second occluding device; 400. a first push-pull device; 401. pushing and pulling the main machine box body; 402. pushing and pulling the rotating shaft; 403. pushing and pulling the chassis; 404. push-pull hydraulic push rod, 405, connecting piece; 500. a second push-pull device; 600. a third push-pull device; 700. a fourth push-pull device; 800. a main mold; 801. an upper cover plate; 802. a first main vertical plate; 803. a first swing vertical plate; 8031. a slider; 8032. a chute; 8033. moving the plate; 8034. a rack; 8035. a gear; 8036. a motor; 804. a second main vertical plate; 805. a second swing vertical plate; 806. a third swing vertical plate; 807. and a fourth swing vertical plate.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the invention is further described with reference to the figures and the specific embodiments.