CN118877738A - A hoisting mechanism for extrusion die - Google Patents

Abstract

The present invention discloses a hoisting mechanism for an extrusion die, comprising an extrusion die located on a frame, wherein a support plate and a connecting plate are arranged on the frame, a side of the support plate away from the frame is connected to the extrusion die, the connecting plate is located on one side of the support plate and is connected to the support plate, a connecting block and a transmission mechanism are arranged on the connecting plate, and a threaded groove is arranged on the connecting block; the present invention has a simple structure, a reasonable design and a simple structure, when the extrusion die is arranged vertically, the extrusion die processes the raw material into a workpiece, and when the raw material is processed, the inclination angle of the extrusion die is adjusted through the transmission mechanism until the extrusion die is rotated to a set angle, thereby facilitating the cleaning of the inner side wall of the extrusion die, without the need for the staff to manually rotate the extrusion die, thus saving the workload of the staff, saving time and effort, and improving the efficiency of production, processing and cleaning.

Description

A hoisting mechanism for extrusion die

Technical Field

The invention relates to the technical field of extrusion dies, in particular to a hoisting mechanism for an extrusion die.

Background Art

Extrusion dies are key equipment used in the extrusion process. Extrusion dies are designed with specific shapes and sizes to control the flow and shaping of materials. Extrusion dies are usually used for processing raw materials such as plastics, metals or rubber. The working principle of extrusion dies is to extrude the heated and melted raw materials through the outlet of the die to form a continuous workpiece with a certain cross-sectional shape. For example, plastic pipes, profiles and films are all produced by extrusion dies.

Deficiencies of existing technology:

For the above-mentioned extrusion die, when processing the raw materials, the staff needs to adjust the extrusion die to a vertical setting. After the staff completes the processing of the raw materials, the staff needs to clean the inner wall of the extrusion die. At this time, the staff needs to manually rotate the extrusion die to make the extrusion die rotate to a set angle, thereby cleaning the inner wall of the extrusion die. During this process, due to the large mass of the extrusion die, it is time-consuming and laborious for the staff to rotate the extrusion die, which seriously affects the normal processing and cleaning efficiency.

Summary of the invention

The object of the present invention is to provide a hoisting mechanism for an extrusion die to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solution: a hoisting mechanism for an extrusion die, comprising an extrusion die located on a frame, the frame being provided with a support plate and a connecting plate, the support plate being connected to the extrusion die at a side away from the frame, the connecting plate being located at one side of the support plate and connected to the support plate, the connecting plate being provided with a connecting block and a transmission mechanism, the connecting block being provided with a threaded groove, and the transmission mechanism comprising:

A transmission plate, the transmission plate is located on a side of the connecting plate away from the supporting plate, one end of the transmission plate is connected to the connecting plate, and the other end of the transmission plate is connected to the extrusion die, a transmission block is provided on one end of the transmission plate close to the extrusion die, and a threaded groove is provided on one side of the transmission block close to the connecting block;

A transmission screw, one end of which is threadedly connected to the thread groove on the connection block, and the other end of which is threadedly connected to the thread groove on the transmission plate;

A driving source is located on the connecting plate, and the driving source is connected to the transmission screw and is used to drive the transmission screw to rotate.

Preferably, a transmission groove is provided on the side wall of the transmission screw at one end away from the extrusion die, and the driving source includes:

A driving shaft, the driving shaft is coaxially arranged with the transmission screw, a driving groove is formed on the driving shaft, and a side wall of the driving groove on the driving shaft is slidably connected with a side wall of the transmission screw;

A transmission shaft, wherein the transmission shaft is located in the driving groove, and one end of the transmission shaft passes through the transmission groove and is connected to the inner side wall of the driving shaft;

A driving motor is located on the connecting plate and connected to the connecting plate, and an output shaft of the driving motor is coaxially connected to an end of the driving shaft away from the transmission screw rod.

Preferably, a rotating plate is provided on the side of the transmission block away from the transmission plate, a sliding groove is provided on the side of the rotating plate close to the transmission plate, the length direction of the sliding groove is consistent with the axial direction of the transmission screw, a slider, a cross plate and a cross bar are provided on the rotating plate, one side of the slider is located in the sliding groove and is slidably connected to the rotating plate, the other side of the slider is connected to the side wall of the cross plate, one side of the cross plate is connected to an end of the transmission screw away from the driving shaft, the other side of the cross plate is connected to the cross bar, the cross bar and the transmission screw are coaxially arranged, and a detection component is provided on the end of the cross bar away from the vertical plate, and the detection component is used to detect the moving distance of the cross bar.

Preferably, a lifting cylinder and a lifting rod are provided on the rotating plate. The lifting cylinder is located on the side of the horizontal plate away from the transmission screw. The cylinder body of the lifting cylinder is connected to the rotating plate. The piston rod of the lifting cylinder is coaxially connected to the lifting rod. The end of the lifting rod away from the lifting cylinder is used to contact the side wall of the horizontal plate.

Preferably, the detection component includes a controller and a displacement sensor, the controller is connected to the displacement sensor, the displacement sensor is used to detect the displacement of the cross bar, and the controller is used to send a control signal when the displacement of the cross bar exceeds a set value, and the control signal is used to control the start of the lifting cylinder.

Preferably, an abutment plate and a spring are provided on the cross bar, the abutment plate is sleeved on the cross bar and slidably connected to the side wall of the cross bar, the abutment plate is connected to the transmission plate, the spring sleeve is located on one side of the cross bar, one end of the spring is connected to the side wall of the abutment plate, and the other end of the spring is connected to the side wall of the cross plate.

Preferably, a limiting ring and a limiting member are provided on the transmission screw, the limiting ring is sleeved on the transmission screw, and the inner side wall of the limiting ring is slidably connected to the side wall of the transmission screw, the limiting member is located on the transmission plate, and the limiting member is connected to the limiting ring and is used to limit the limiting ring.

Preferably, the limiting member includes:

A limiting plate, the limiting plate is located at the bottom of the limiting ring and connected to the limiting ring, the bottom of the limiting plate is slidably connected to the top of the rotating plate, a plurality of limiting grooves are opened on the side wall of the limiting plate, the plurality of limiting grooves are evenly distributed along the length direction of the limiting plate, and the length direction of each limiting groove is consistent with the width direction of the limiting plate;

The limit cylinder is located on the rotating plate, the cylinder body of the limit cylinder is connected to the rotating plate, and the piston rod of the limit cylinder is used for sliding connection with the limit groove on the limit plate.

Preferably, a plurality of ball groups are arranged on the side wall of the transmission shaft, and the plurality of ball groups are evenly distributed along the axial direction of the transmission shaft. Each of the ball groups includes a plurality of balls, and the plurality of balls are evenly distributed along the circumference of the transmission shaft. One side of each of the balls is connected to the side wall of the transmission shaft, and the other side of each of the balls is slidably connected to the side wall of the transmission groove.

Preferably, a flexible layer is provided on a side of the transverse plate close to the lifting rod, and the flexible layer is used to contact the end of the lifting rod.

Compared with the prior art, the present invention has the following beneficial effects:

1. A hoisting mechanism for an extrusion die. When the extrusion die has finished processing the raw material, the transmission plate and the connection plate are rotated in a direction away from or close to each other through the driving source, the transmission screw, the connection block and the transmission block on the connection plate, so that the extrusion die is adjusted from a vertical setting to an inclined setting, so that it is convenient for the staff to adjust the discharge port of the extrusion die to a set angle, so that it is convenient for the staff to clean the inner side wall of the extrusion die, so that the staff does not need to manually rotate the extrusion die, saving the workload of the staff, saving time and effort;

2. The hoisting mechanism of the extrusion die is provided with a controller and a displacement sensor. When the extrusion die rotates to a set angle, the cross bar is transmitted to a set position. When the displacement sensor detects that the displacement of the cross bar exceeds the set value, the displacement sensor sends a control signal to the controller. The controller is used to control the start of the lifting cylinder, so that the piston rod of the lifting cylinder drives the lifting rod to move synchronously until the end of the lifting rod away from the lifting cylinder contacts the side wall of the cross plate, thereby limiting the contact of the cross plate, so that the transmission screw is not easy to continue to move, thereby limiting the extrusion die, and thus improving the stability of the extrusion die;

3. The hoisting mechanism of the extrusion die converts the sliding friction between the side wall of the transmission shaft and the side wall of the transmission groove into rolling friction through the balls arranged on the transmission shaft, thereby reducing the friction between the transmission shaft and the transmission groove, thereby reducing the wear between the transmission shaft and the transmission groove and extending the service life of the transmission shaft.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a partial structural schematic diagram of the present invention, mainly showing the transmission plate;

FIG3 is an exploded schematic diagram of a part of the structure of the present invention, mainly showing the driving source;

FIG4 is a partial structural schematic diagram of the present invention, mainly showing the limiter;

FIG5 is an exploded schematic diagram of a part of the structure of the present invention, mainly showing the ball bearing;

FIG6 is a partial structural schematic diagram of the present invention, mainly showing the spring;

FIG. 7 is an exploded schematic diagram of a partial structure of the present invention, mainly showing the slider.

In the figure: 1. frame; 11. extrusion die; 12. feed pipe; 13. connecting plate; 14. connecting block; 15. transmission block; 2. support plate; 21. first support plate; 22. second support plate; 3. transmission mechanism; 31. transmission plate; 32. transmission screw; 4. driving source; 41. driving shaft; 42. transmission shaft; 43. driving motor; 5. rotating plate; 51. slide groove; 52. slider; 53. cross plate; 54. flexible layer; 55. cross bar; 56. lifting cylinder; 57. lifting rod; 58. abutment plate; 59. spring; 6. limiting ring; 7. limiting member; 71. limiting plate; 72. limiting cylinder; 81. limiting groove; 91. transmission groove; 92. driving groove; 93. ball bearing.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integrated connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

Please refer to Figures 1-7, a technical solution of a hoisting mechanism for an extrusion die provided by the present invention:

A hoisting mechanism for an extrusion die includes a support plate 2, a connecting plate 13, a transmission plate 31, a transmission mechanism 3 and an extrusion die 11 located on a frame 1. There are two support plates 2, two connecting plates 13, two transmission plates 31 and two transmission mechanisms 3, and the two support plates 2, two connecting plates 13, two transmission plates 31 and two transmission mechanisms 3 are respectively located on both sides of the extrusion die 11, and each support plate 2, connecting plate 13, two transmission plates 31 and two transmission mechanisms 3 correspond to each other. Each transmission mechanism 3 includes a transmission plate 31, a transmission screw 32 and a driving source 4.

The support plate 2 includes a first support plate 21 and a second support plate 22. The vertically arranged first support plate 21 is L-shaped. One end of the first support plate 21 is fixedly connected to the frame 1, and the other end of the first support plate 21 is rotatably connected to the second support plate 22. The vertically arranged second support plate 22 is L-shaped and located on one side of the first support plate 21. One end of the second support plate 22 away from the first support plate 21 is hinged to the side wall of the extrusion die 11. The vertically arranged connecting plate 13 is L-shaped and located on one side of the first support plate 21. One end of the connecting plate 13 is fixedly connected to the frame 1, and the other end of the connecting plate 13 is rotatably connected to the transmission plate 31. A connecting block 14 is installed on the side away from each other of the two connecting plates 13. The horizontally arranged connecting block 14 is rotatably connected to the connecting plate 13. The vertically arranged transmission plate 31 is L-shaped and located on one side of the connecting plate 13. One end of the transmission plate 31 away from the connecting plate 13 is hinged to the extrusion die 11. A feeding pipe 12 for feeding is installed on the extrusion die 11 , and the end of the feeding pipe 12 is rotatably connected to the top of the extrusion die 11 , so that it is convenient for the staff to transfer the raw materials into the extrusion die 11 through the feeding pipe 12 .

A transmission block 15 is installed on the side of the two transmission plates 31 away from each other, and the horizontally arranged transmission block 15 is rotatably connected to the transmission plate 31. One end of the transmission screw 32 is threaded through the connection block 14, and the other end of the transmission screw 32 is threaded through the transmission block 15. A transmission groove 91 is formed on the end of the transmission screw 32 away from the transmission block 15, and the transmission groove 91 penetrates the transmission screw 32 along the radial direction of the transmission screw 32. The driving source 4 includes a driving motor 43, a driving shaft 41 and a transmission shaft 42. The driving motor 43 is located at the end of the transmission screw 32 away from the transmission block 15. The driving motor 43 is fixedly connected to the connecting block 14. The output shaft of the driving motor 43 is coaxially fixedly connected to the driving shaft 41. A driving groove 92 is coaxially opened on the side of the driving shaft 41 away from the driving motor 43. The side wall of the driving groove 92 is used to contact the side wall of the transmission screw 32. The transmission shaft 42 is located in the driving groove 92, and the axial direction of the driving shaft 42 is perpendicular to the axial direction of the driving shaft 41. One end of the driving shaft 42 is fixedly connected to the side wall of the driving groove 92, and the other end of the driving shaft 42 passes through the transmission groove 91 on the transmission screw 32 and is fixedly connected to the side wall of the driving groove 92. A plurality of ball roller groups 93 are mounted on the transmission shaft 42, and the plurality of ball roller groups 93 are evenly distributed along the axial direction of the transmission shaft 42. Each ball roller group 93 includes a plurality of ball rollers 93, and the plurality of ball rollers 93 are evenly distributed along the circumference of the transmission shaft 42. One side of each ball roller 93 is rotatably connected to the side wall of the transmission shaft 42, and the other side of each ball roller 93 is used to contact the transmission groove 91 on the transmission screw 32.

After the staff transmits the raw material to the extrusion die 11 through the feed pipe 12, the staff starts the drive motor 43. The output shaft of the drive motor 43 rotates to drive the drive shaft 41 to rotate synchronously. The transmission shaft 42 contacts the side wall of the transmission groove 91, and the transmission screw 32 rotates synchronously, thereby driving the transmission block 15 to move in a direction close to or away from the connecting block 14, thereby driving the transmission plate 31 to rotate in a direction close to or away from the connecting plate 13, thereby driving the extrusion die 11 to rotate, so that the extrusion die 11 is rotated to a vertical setting, which is convenient for the staff to process the raw material into a set shape and size. When the staff completes the processing of the raw material, in order to facilitate the cleaning of the inner wall of the extrusion die 11, the staff needs to rotate the extrusion die 11 to a set angle. At this time, the staff starts the drive motor 43 again, and drives the extrusion die 11 to rotate through the transmission screw 32, so that the discharge port of the extrusion die 11 is tilted, so that the staff can clean the inside of the extrusion die 11, so that the staff does not need to manually rotate the extrusion die 11, which saves time and effort and improves processing and cleaning efficiency.

Each transmission plate 31 is provided with a rotating plate 5, which is vertically arranged and fixedly connected to the transmission plate 31. A sliding groove 51 is provided on the side of the rotating plate 5 close to the transmission plate 31, and the length direction of the sliding groove 51 is consistent with the length direction of the rotating plate 5. A slider 52, a cross plate 53 and an abutting plate 58 are provided on the rotating plate 5. The bottom of the slider 52 is located in the sliding groove 51 and is slidably connected to the side wall of the sliding groove 51. The top of the slider 52 extends outside the sliding groove 51 and is fixedly connected to the bottom of the cross plate 53. One side of the cross plate 53 is rotatably connected to the end of the transmission screw 32 away from the driving source 4. A flexible layer 54 and a cross bar 55 are provided on the other side of the cross plate 53. The flexible layer 54 is made of rubber material and is bonded to the cross plate 53. The cross bar 55 is located on the side of the flexible layer 54 away from the transmission screw 32, and the cross bar 55 is coaxially arranged with the transmission screw 32. The end of the cross bar 55 is fixedly connected to the side wall of the flexible layer 54. The abutment plate 58 is located on the side of the transverse plate 53 away from the transmission screw 32, and the bottom of the abutment plate 58 is fixedly connected to the rotating plate 5. A spring 59 is installed on the side of the abutment plate 58 close to the transverse plate 53, and a lifting cylinder 56 and a lifting rod 57 are installed on the side of the abutment plate 58 away from the transverse plate 53. There are two inclined springs 59, and the two springs 59 are distributed on both sides of the transverse rod 55. One side of each spring 59 is fixedly connected to the side wall of the transverse plate 53, and the other end of each spring 59 is fixedly connected to the side wall of the abutment plate 58. The elastic potential energy of the spring 59 is used to buffer the transverse plate 53. The lifting cylinder 56 is located on the side of the abutment plate 58 away from the cross plate 53, and the cylinder body of the lifting cylinder 56 is fixedly connected to the rotating plate 5. The axial direction of the piston rod of the lifting cylinder 56 is consistent with the length direction of the rotating plate 5. The piston rod of the lifting cylinder 56 is coaxially fixedly connected to the lifting rod 57. The other end of the lifting rod 57 passes through the abutment plate 58 and is slidably connected to the abutment plate 58. The lifting rod 57 is used to contact the flexible layer 54 on the cross plate 53. A detection part is installed on the cross bar 55. The detection part includes a displacement sensor and a controller. The displacement sensor is connected to the controller. The displacement sensor is used to detect the displacement of the cross bar 55. The controller is used to send a control signal when the displacement of the cross bar 55 exceeds a set value. The control signal is used to control the start of the lifting cylinder 56.

The rotating plate 5 provides support for the slider 52, the cross plate 53, the abutment plate 58 and the lifting cylinder 56. The displacement sensor compares the displacement of the cross bar 55 with the set displacement, that is, the rotation angle of the transmission plate 31 is calculated through a series of trigonometric conversions based on the displacement of the cross bar 55, and then the rotation angle of the extrusion die 11 is calculated. The staff starts the drive motor 43, and the drive shaft 41 rotates to drive the transmission screw 32 to rotate synchronously, thereby driving the cross plate 53 and the cross bar 55 to move synchronously. When the cross bar 55 is transmitted to the set displacement, that is, when the extrusion mold 11 is transmitted to the set angle, the controller sends a control signal to start the lifting cylinder 56. The piston rod of the lifting cylinder 56 is extended and retracted to drive the lifting rod 57 to move synchronously until the end of the lifting rod 57 contacts the side wall of the flexible layer 54, thereby limiting the cross plate 53, and then limiting the transmission plate 31 and the transmission screw 32. At this time, after the transmission plate 31 drives the extrusion mold 11 to rotate to the set position, the extrusion mold 11 is limited, so that the extrusion mold 11 is not easy to shake at will, thereby improving the stability of the extrusion mold 11, so that it is convenient to clean the inner wall of the extrusion mold 11.

The transmission screw 32 is provided with a limit ring 6 and a limit member 7, the limit member 7 comprises a limit plate 71 and a limit cylinder 72, the limit ring 6 is sleeved on the transmission screw 32 and is coaxially fixedly connected with the transmission screw 32, the limit plate 71 is located at the bottom of the limit ring 6, and the top of the limit plate 71 is rotatably connected with the limit ring 6 through a bearing, the bottom of the limit plate 71 is slidably connected with the rotating plate 5 along the length direction of the rotating plate 5, and a plurality of limit grooves 81 are provided on the side of the limit plate 71 away from the extrusion die 11, and the plurality of limit grooves 81 are provided. 1 is evenly distributed along the length direction of the limiting plate 71, the limiting cylinder 72 is located on one side of the limiting plate 71, the cylinder body of the limiting cylinder 72 is fixedly connected to the rotating plate 5, the axial direction of the piston rod of the limiting cylinder 72 is consistent with the length direction of the rotating plate 5, and the piston rod of the limiting cylinder 72 is used to extend into the limiting groove 81 and contact with the bottom wall of the limiting groove 81, so as to limit the limiting plate 71 and the transmission screw 32, and then limit the transmission plate 31 and the extrusion mold 11, so as to improve the stability of the extrusion mold 11.

The working principle of the present invention is as follows:

When the hoisting mechanism of an extrusion die of the present embodiment is in use, after the staff transfers the raw material into the extrusion die 11 through the feed pipe 12, the staff starts the drive motor 43, and the output shaft of the drive motor 43 rotates to drive the drive shaft 41 to rotate synchronously, and the transmission screw 32 rotates synchronously through the transmission shaft 42 and the transmission groove 91, so that the transmission screw 32 moves along the axial direction of the drive shaft 41, and then drives the transmission block 15 to move in a direction close to or away from the connecting block 14, thereby driving the transmission plate 31 to move synchronously, and the rotation of the transmission plate 31 drives the extrusion die 11 to rotate synchronously, so that the extrusion die 11 is adjusted to a vertical setting, thereby facilitating the transmission of raw materials from the discharge port on the extrusion die 11, thereby facilitating the processing and forming of the workpiece.

When the extrusion die 11 has finished processing the raw material, in order to facilitate the cleaning of the inner wall of the extrusion die 11, the staff will start the driving motor 43 again, so that the transmission screw 32 rotates in the opposite direction, so that the transmission plate 31 rotates synchronously, and then drives the discharge port of the extrusion die 11 to rotate synchronously, until the extrusion die 11 is adjusted from a vertical setting to an inclined setting. When the cross bar 55 is transmitted to the set displacement, that is, when the discharge port of the extrusion die 11 rotates to the set angle, the lifting cylinder 56 is started through the displacement sensor and the controller, and the piston rod of the lifting cylinder 56 is extended and retracted to drive the lifting rod 57 to move synchronously until the lifting and lowering The end of the rod 57 abuts against the flexible layer 54 on the cross plate 53, thereby abutting and limiting the cross plate 53, and then synchronously limiting the transmission screw 32 and the transmission plate 31. At the same time, the piston rod of the limiting cylinder 72 contacts the set limiting groove 81 on the limiting plate 71, further limiting the limiting plate 71, thereby limiting the transmission screw 32 and the transmission plate 31, improving the stability of the transmission plate 31, and then improving the stability of the extrusion mold 11, so that the extrusion mold 11 is not easy to shake at will during cleaning, and it is convenient for the staff to clean the inner wall of the extrusion mold 11, saving time and effort, and improving the processing and cleaning efficiency.

The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims (10)

1. The utility model provides a hoist mechanism of extrusion tooling, includes extrusion tooling (11) that are located on frame (1), its characterized in that: be provided with backup pad (2) and connecting plate (13) on frame (1), one side that frame (1) was kept away from to backup pad (2) is connected with extrusion tooling (11), connecting plate (13) are located one side of backup pad (2) and are connected with backup pad (2), be provided with connecting block (14) and transport mechanism (3) on connecting plate (13), the screw thread groove has been seted up on connecting block (14), transport mechanism (3) are including:

The conveying plate (31), the conveying plate (31) is located one side of the connecting plate (13) far away from the supporting plate (2), one end of the conveying plate (31) is connected with the connecting plate (13), the other end of the conveying plate (31) is connected with the extrusion die (11), a conveying block (15) is arranged at one end, close to the extrusion die (11), of the conveying plate (31), and a thread groove is formed in one side, close to the connecting block (14), of the conveying block (15);

One end of the transmission screw (32) is in threaded connection with a threaded groove on the connecting block (14), and the other end of the transmission screw (32) is in threaded connection with a threaded groove on the transmission plate (31);

The driving source (4) is positioned on the connecting plate (13), and the driving source (4) is connected with the transmission screw (32) and is used for driving the transmission screw (32) to rotate.

2. The hoisting mechanism of an extrusion die according to claim 1, wherein: the side wall of one end of the transmission screw (32) far away from the extrusion die (11) is provided with a transmission groove (91), and the driving source (4) comprises:

the driving shaft (41) is coaxially arranged with the transmission screw (32), a driving groove (92) is formed in the driving shaft (41), and the side wall of the driving groove (92) on the driving shaft (41) is in sliding connection with the side wall of the transmission screw (32);

the transmission shaft (42) is positioned in the driving groove (92), and one end of the transmission shaft (42) passes through the transmission groove (91) and then is connected with the inner side wall of the driving shaft (41);

the driving motor (43), driving motor (43) are located on connecting plate (13) and are connected with connecting plate (13), the output shaft of driving motor (43) and one end of drive shaft (41) far away from transmission screw (32) coaxial coupling.

3. The hoisting mechanism of an extrusion die according to claim 1, wherein: the utility model discloses a transmission board, including transmission board (31) and transmission block (15), be provided with rotation board (5) on one side that transmission board (31) was kept away from to transmission block (15), spout (51) have been seted up on one side that rotation board (5) are close to transmission board (31), the length direction of spout (51) is unanimous with the axial of transmission screw (32), be provided with slider (52), diaphragm (53) and horizontal pole (55) on rotation board (5), one side of slider (52) is located spout (51) and with rotation board (5) sliding connection, the opposite side of slider (52) is connected with the lateral wall of diaphragm (53), one side and the one end that transmission screw (32) kept away from drive shaft (41) of diaphragm (53) are connected, the opposite side and horizontal pole (55) are connected, horizontal pole (55) and the coaxial setting of transmission screw (32), be provided with the detection piece on the one end that the riser was kept away from to horizontal pole (55), the detection piece is used for detecting the travel distance of horizontal pole (55).

4. A lifting mechanism for an extrusion die according to claim 3, wherein: be provided with lift cylinder (56) and lifter (57) on rotating plate (5), lift cylinder (56) are located one side that transmission screw (32) were kept away from to diaphragm (53), the cylinder body of lift cylinder (56) is connected with rotating plate (5), the piston rod and the lifter (57) coaxial coupling of lift cylinder (56), the one end that lifter (57) kept away from lift cylinder (56) is used for contacting with the lateral wall of diaphragm (53).

5. A lifting mechanism for an extrusion die according to claim 3, wherein: the detection part comprises a controller and a displacement sensor, the controller is connected with the displacement sensor, the displacement sensor is used for detecting the displacement of the cross rod (55), the controller is used for sending a control signal when the displacement of the cross rod (55) exceeds a set value, and the control signal is used for controlling the lifting cylinder (56) to start.

6. A lifting mechanism for an extrusion die according to claim 3, wherein: be provided with butt board (58) and spring (59) on horizontal pole (55), butt board (58) cover is located on horizontal pole (55) and is connected with the lateral wall sliding of horizontal pole (55), butt board (58) are connected with transmission board (31), spring (59) cover is located one side of horizontal pole (55), the one end of spring (59) is connected with the lateral wall of butt board (58), the other end of spring (59) is connected with the lateral wall of diaphragm (53).

7. The hoisting mechanism of an extrusion die according to claim 1, wherein: be provided with spacing ring (6) and locating part (7) on transmission screw (32), on transmission screw (32) was located to spacing ring (6) cover, just the inside wall of spacing ring (6) and the lateral wall sliding connection of transmission screw (32), locating part (7) are located on transmission plate (31), locating part (7) are connected and are used for spacing ring (6) with spacing ring (6).

8. The hoisting mechanism of an extrusion die as claimed in claim 7, wherein: the limiting piece (7) comprises:

the limiting plate (71), the limiting plate (71) is located at the bottom of the limiting ring (6) and is connected with the limiting ring (6), the bottom of the limiting plate (71) is connected with the top of the rotating plate (5) in a sliding mode, a plurality of limiting grooves (81) are formed in the side wall of the limiting plate (71), the plurality of limiting grooves (81) are uniformly distributed along the length direction of the limiting plate (71), and the length direction of each limiting groove (81) is consistent with the width direction of the limiting plate (71);

the limiting cylinder (72), limiting cylinder (72) are located on the rotating plate (5), the cylinder body of limiting cylinder (72) is connected with the rotating plate (5), and the piston rod of limiting cylinder (72) is used for being connected with limiting grooves (81) on the limiting plate (71) in a sliding mode.

9. The hoisting mechanism of an extrusion die according to claim 2, wherein: be provided with a plurality of ball (93) group on the lateral wall of transmission shaft (42), a plurality of ball (93) group is along the axial evenly distributed of transmission shaft, every ball (93) group all includes a plurality of balls (93), and a plurality of ball (93) are along the circumference evenly distributed of transmission shaft (42), every one side of ball (93) is connected with the lateral wall of transmission shaft (42), every the opposite side of ball (93) is connected with the lateral wall sliding of transmission groove (91).

10. The hoisting mechanism of an extrusion die according to claim 4, wherein: a flexible layer (54) is arranged on one side of the transverse plate (53) close to the lifting rod (57), and the flexible layer (54) is used for being in contact with the end part of the lifting rod (57).