CN219817721U - Automobile chassis longitudinal beam mould - Google Patents

Abstract

The utility model discloses an automobile chassis longitudinal beam mold, which comprises: the female die and the male die can move relatively to each other so as to perform die assembly and die opening, one end of the bottom of the female die forming groove is provided with a mounting groove, the groove wall of the mounting groove is provided with a communicating groove, and the communicating groove is communicated with the outer part of the female die; the demoulding assembly comprises a demoulding module and a driving rod, the demoulding module is arranged in the mounting groove and is provided with a propping surface which is flush with the wall of the bottom of the forming groove and is configured to prop against the formed workpiece; one end of the driving rod penetrates through the communication groove and is rotationally connected with the demolding block, and the driving rod is used for driving the demolding block to move upwards, so that when the demolding module pushes the molded workpiece out of the molding groove, the demolding module can rotate along with the rotation of the workpiece, and the propping surface is kept attached to the surface of the workpiece. The technical scheme of the utility model can prevent the formed workpiece from being scratched when being taken out.

Description

Automobile chassis longitudinal beam mould

Technical Field

The utility model relates to the technical field of stamping, in particular to an automobile chassis longitudinal beam die.

Background

Automobile stringers are important load bearing components in automobiles. When the longitudinal beam is produced, the longitudinal beam is usually punched by using alloy steel plates. In the related art, after a workpiece is stamped and formed, a butt joint rod is arranged at the bottom of a female die, and the cross beam is propped out of the female die through the butt joint rod, but when the butt joint rod is propped against the cross beam, scratches are easy to appear on the surface of the cross beam, and the quality of the cross beam is affected.

Disclosure of Invention

The utility model mainly aims to provide an automobile chassis longitudinal beam die, and aims to solve the technical problem that scratches appear when a cross beam is taken out.

In order to achieve the above object, the present utility model provides an automobile chassis longitudinal beam mold, comprising:

the female die and the male die can move relatively to each other so as to perform die assembly and die opening;

a mounting groove is formed at one end of the bottom of the female die forming groove, a communicating groove is formed on the groove wall of the mounting groove, and the communicating groove is communicated with the mounting groove and the outside of the female die;

the demoulding assembly comprises a demoulding module and a driving rod, the demoulding block is arranged in the mounting groove and is provided with a propping surface which is flush with the bottom wall of the forming groove, and the propping surface is configured to prop against a formed workpiece;

one end of the driving rod penetrates through the communication groove and is rotationally connected with the demolding block, the driving rod is used for driving the demolding block to move upwards, and when the demolding block pushes a molded workpiece out of the molding groove, the demolding block can rotate along with the rotation of the workpiece, so that the propped surface is kept in fit with the surface of the workpiece.

Optionally, the demolding block is provided with a rotating cavity, and a cavity opening of the rotating cavity is positioned on the abutting surface;

the demolding assembly further comprises a roller, the roller is rotatably arranged in the rotating cavity, and the peripheral surface of the roller is tangent to the extending area of the abutting surface.

Optionally, the number of the rotating cavities is multiple, the rotating cavities are arranged at intervals along the length direction of the abutting surface, and the rotating cavities extend along the width direction of the abutting surface;

the number of the rollers is multiple, and the rollers are in rotatable fit with the rotating cavity.

Optionally, the demolding block comprises a block body and an abutting plate, the block body is provided with a containing groove and a rotating groove, an opening of the containing groove is positioned at the top of the block body, the opening area of the containing groove is larger than that of the rotating groove, and the rotating groove is positioned in a concave area of the containing groove;

the abutting plate is arranged in the accommodating groove and covers the notch of the rotating groove so that the block body and the abutting plate are enclosed to form a rotating cavity; the abutting surface is positioned at one side of the abutting plate, which is away from the accommodating cavity, and the abutting plate is provided with an avoidance groove which is communicated with the rotating cavity and the outside of the demolding block;

the demolding assembly further comprises a roller, the roller is rotatably arranged in the rotating cavity, and the roller is exposed through the avoidance groove.

Optionally, the width of the mounting groove is consistent with the width of the forming groove, and the width of the stripping module is matched with the width of the mounting groove.

Optionally, the mounting groove is provided with two guide surfaces which are oppositely arranged, the two guide surfaces are respectively arranged towards the length direction of the forming groove, and the two guide surfaces are obliquely arranged from the bottom of the mounting groove to the groove edge of the mounting groove so that the notch of the mounting groove is larger than the bottom of the mounting groove.

Optionally, the demolding block has a guiding surface facing the guiding surface, and the guiding surface is in surface fit with the guiding surface.

Optionally, the groove depth direction of the communicating groove is perpendicular to the length direction of the forming groove, and the communicating groove extends along the height direction of the female die.

Optionally, the driving rod comprises a connecting section and a rotating section, the rotating section comprises a connecting part, a first movable end and a second movable end which are respectively arranged at two ends of the connecting part, and the connecting part is rotationally connected with the female die;

one end of the connecting section is rotatably connected with the removing module by penetrating through the communicating groove, and the other end of the connecting section is fixedly connected with the first movable end.

Optionally, the groove depth direction of the communicating groove is perpendicular to the length direction of the forming groove, and the communicating groove extends along the height direction of the female die; the communication groove is arranged in an arc shape, and the arc of the communication groove is parallel to the arc formed by rotation of the first movable end by taking the connecting part as an axis; and/or the number of the groups of groups,

the driving rod further comprises a handle, and the handle is fixedly connected with the second movable end; and/or the number of the groups of groups,

the female die is provided with a rotating shaft, the connecting part is provided with a rotating hole, and the rotating shaft is in running fit with the rotating hole; the longitudinal beam mold further comprises a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected with the first movable end, the other end of the torsion spring is connected with the bottom of the female mold, and the torsion spring is used for driving the demolding block to enter the mounting groove.

According to the longitudinal beam mold, the mounting groove is formed in one end of the bottom of the female mold forming groove, the communicating groove which is communicated with the mounting groove and the outside of the groove is formed in the groove wall of the mounting groove, the demolding block is arranged in the mounting groove, one end of the driving rod penetrates through the communicating groove and is in rotary connection with the demolding block, and therefore when the driving rod moves, the demolding module can move along with the driving rod, and a formed workpiece can be propped out of the forming groove. Because the driving rod is rotationally connected with the demoulding block, the demoulding module can rotate along with the rotation of the workpiece in the process of propping against the formed workpiece, and the propping surface of the demoulding module is always attached to the surface of the formed workpiece, so that the formed workpiece is prevented from being scratched, and the surface of the formed workpiece is prevented from being sunken due to the rotation of the formed workpiece.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a structure of an ejector-type workpiece for a longitudinal beam mold of an automobile chassis;

FIG. 2 is a schematic view of a cross-sectional structure of a workpiece formed by abutting a stripper block against an embodiment of an automotive chassis stringer mold in accordance with the present utility model;

FIG. 3 is an enlarged view of a portion of the portion I of FIG. 2;

FIG. 4 is a schematic drawing of a demolding explosion structure of the automobile chassis longitudinal beam mold of the present utility model;

FIG. 5 is a schematic diagram of the structure of the female die and stripper assembly of the chassis stringer mold of the present utility model;

FIG. 6 is a schematic diagram of an assembled structure of a stripping module in an automotive chassis stringer mold according to the present utility model;

fig. 7 is a schematic diagram of an exploded structure of a stripping module in an automobile chassis longitudinal beam mold according to the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The longitudinal beam mold is mainly used for demolding a workpiece from the mold so as to improve the demolding efficiency.

The specific structure of the stringer mold will be mainly described below.

Referring to fig. 1 to 7, in an embodiment of the present utility model, the stringer mold includes:

the female die and the male die 1 can move relatively to each other so as to perform die assembly and die opening; a mounting groove 22 is formed at one end of the bottom of the female die forming groove 21, a communicating groove 23 is formed on the groove wall of the mounting groove 22, and the communicating groove 23 communicates the mounting groove 22 with the outside of the female die; a stripper assembly comprising a stripper block 31 and a drive rod 32, the stripper block 31 being disposed in the mounting slot 22, the stripper block 31 having a top abutment surface 311 flush with the bottom wall of the forming slot 21, the top abutment surface 311 being configured to abut a formed workpiece; one end of the driving rod 32 passes through the communication groove 23 and is rotationally connected with the demolding block 31, the driving rod 32 is used for driving the demolding block 31 to move upwards, so that when the demolding block 31 pushes the molded workpiece 100 out of the molding groove 21, the demolding block 31 can rotate along with the rotation of the workpiece, and the propping surface 311 keeps fit with the surface of the workpiece.

Specifically, in the present embodiment, the stringer mold includes a male mold 1 and a female mold. The female die is used for bearing a workpiece, and the workpiece placed in the female die is punched into a required shape under the cooperation of the male die 1. The female die can be arranged on a workbench of the punch press. The male die 1 can be directly arranged on an output shaft of a hydraulic cylinder of the punch press, and can also be indirectly connected with a cam of the punch press, but the male die 1 needs to be arranged corresponding to the female die. When the male die 1 is indirectly connected with the cam, the male die 1 is arranged on a slide block capable of sliding up and down, and the slide block is arranged on the punch press through a slide rail. The male die 1 is connected with the cam through the connecting rod, namely one end of the connecting rod is rotatably connected with the cam, and the other end of the connecting rod is rotatably connected with the male die 1, so that the cam adjusts the power for driving the male die 1 to move up and down through the rotating force of the cam through the connecting rod, and the male die 1 can be combined with the female die and opened when moving up and down.

The overall shape of the stripping module 31 may be square, circular, or rectangular, etc., but the stripping module 31 needs to be adapted to the mounting groove 22 so that the stripping module 31 can be mounted to the mounting groove 22. In order to avoid interference of the punch 1 to the molding of the workpiece when the workpiece is punched, the abutting surface 311 of the stripper block 31 needs to be flush with the bottom wall surface of the molding groove 21. The driving rod 32 is used to drive the stripping module 31 against the formed workpiece 100 to withdraw from the forming groove 21, and the power of the driving rod 32 may be generated manually, or may be generated by an air cylinder, a hydraulic cylinder, a linear motor, or the like, which is not particularly limited herein. One end of the driving rod 32 is rotatably connected with the demoulding block 31 outside the groove through the communication groove 23 entering the mounting groove 22, so that the demoulding block 31 can push a formed workpiece out of the forming groove 21 along with the movement of the driving rod 32 under the action of the driving rod 32.

According to the longitudinal beam mold, the mounting groove 22 is formed at one end of the bottom of the female mold forming groove 21, the communication groove 23 which is used for communicating the mounting groove 22 with the outside of the groove is formed in the groove wall of the mounting groove 22, the stripping module 31 is arranged in the mounting groove 22, and one end of the driving rod 32 penetrates through the communication groove 23 to be rotationally connected with the stripping block 31, so that the stripping block 31 can push the formed workpiece 100 out of the forming groove 21 along with the movement of the driving rod 32 when the driving rod 32 moves. Because the driving rod 32 is rotationally connected with the demoulding block 31, the demoulding block 31 can rotate along with the rotation of the workpiece in the process of propping against the formed workpiece 100, and the propping surface of the demoulding block 31 is always attached to the surface of the formed workpiece 100, so that the formed workpiece 100 is prevented from being scratched and the surface of the formed workpiece 100 is prevented from being sunken due to the rotation of the formed workpiece 100.

In some examples, as shown in fig. 2-7, the stripper block 31 has a rotating cavity with a cavity opening located on the abutment surface 311; the demolding assembly further comprises a roller 33, the roller 33 is rotatably arranged in the rotating cavity, and the peripheral surface of the roller 33 is tangent to the extending area of the abutting surface 311.

The rotating cavity 312 is used for installing the roller 33, and the length of the rotating cavity 312 may extend along the width direction of the supporting surface 311 or the length direction of the supporting surface, but after the roller 33 is installed in the rotating cavity 312, the surface of the roller 33 is required to face the length direction of the forming groove 21. For example, when the rotating cavity 312 extends along the width direction of the abutting surface 311, the length direction of the rotating cavity 312 is perpendicular to the length direction of the forming groove 21, and the roller 33 may be cylindrical, so that the contact area between the peripheral surface of the roller 33 and the surface of the forming workpiece 100 may be increased when the roller 33 abuts against the forming workpiece 100 after being disposed in the rotating cavity 312 along the length direction of the rotating cavity 312. In order to avoid the roller 33 interfering with the punch 1 to punch the workpiece, the peripheral surface of the roller 33 is tangential to the extension area of the abutment surface 311, that is, after the roller 33 is disposed in the rotation cavity 312, the peripheral surface of the roller 33 may abut against the surface of the molded workpiece 100 when the molded workpiece 100 is not abutted by the abutment block. After the roller 33 is mounted in the rotating cavity 312, the peripheral surface of the roller 33 may be slidably engaged with the cavity wall of the rotating cavity 312, or may be spaced from the cavity wall of the rotating cavity 312, which is not particularly limited herein. The circumferential surface of the roller 33 is tangential to the extending area of the abutting surface 311, which is beneficial to reducing friction between the forming workpiece 100 and the abutting surface 311 when the forming workpiece 100 and the abutting surface 311 generate relative displacement. Specifically, in some examples, the two end walls of the rotation cavity 312 in the length direction are provided with assembly grooves, and the assembly grooves respectively communicate the cavity opening of the rotation cavity with the external space of the demolding block 31. The opposite ends of the roller 33 are provided with mounting shafts which are used for being in running fit with the assembly grooves, so that when the roller 33 is arranged in the rotation cavity 312, the roller 33 is matched with the assembly grooves through the mounting shafts, the circumferential surface of the roller 33 is prevented from being abutted with the cavity wall of the rotation cavity 312, and friction force between the roller 33 and the demoulding block 31 is reduced.

In some examples, as shown in fig. 7, the number of the rotating cavities 312 is plural, the rotating cavities 312 are arranged at intervals along the length direction of the abutting surface 311, and the rotating cavities 312 extend along the width direction of the abutting surface 311; the number of the rollers 33 is plural, and the rollers 33 are rotatably engaged with the rotation chamber 312. The rollers 33 and the rotating cavities 312 further reduce friction between the abutting surface 311 and the workpiece when the formed workpiece 100 and the abutting surface 311 are relatively displaced, thereby further protecting the formed workpiece 100.

In some examples, as shown in fig. 7, the demolding block 31 includes a block body and an abutment plate 35, the block body is provided with a receiving groove 34 and a rotating groove 312, an opening of the receiving groove 34 is positioned at the top of the block body, an opening area of the receiving groove 34 is larger than an opening area of the rotating groove 312, and the rotating groove 312 is positioned in a concave area of the receiving groove 34; the abutting plate 35 is disposed in the accommodating groove 34 and covers the notch of the rotating groove 312, so that the block body and the abutting plate 35 enclose a rotating cavity; the abutting surface 311 is located at one side of the abutting plate 35 away from the accommodating cavity, and the abutting plate 35 has an avoiding groove for communicating the rotating cavity with the exterior of the demolding block 31; the demolding assembly further comprises a roller 33, the roller 33 is rotatably arranged in the rotating cavity, and the roller 33 is exposed through the avoidance groove. The size of the abutment plate 35 corresponds to the notch of the accommodating groove 34, and when the abutment plate 35 is disposed in the accommodating groove 34, the abutment surface 311 of the abutment plate 35 is flush with the upper surface of the block body, that is, the thickness of the abutment plate 35 corresponds to the groove depth of the accommodating groove 34. In addition, in order to improve the stability of the abutting plate 35, the abutting plate 35 is tightly fitted with the accommodating groove 34. In some examples, the receiving groove 34 and the rotating groove 312 extend in the width direction of the block body, that is, the length direction of the receiving groove 34 and the rotating groove 312 are perpendicular to the length direction of the molding groove 21 after the ejector block 31 is mounted in the receiving groove 34. Thus, when the roller 33 is cylindrical, the roller 33 extends along the width of the demolding block 31, and the roller 33 can fully utilize the width of the demolding block 31, that is, when the roller 33 is disposed in the rotating cavity, the contact area between the peripheral surface of the roller 33 and the surface of the molded workpiece 100 can be increased. The escape groove extends in the width direction of the abutment plate 35, that is, the length direction of the escape groove coincides with the extending direction of the accommodation chamber. In some examples, the abutment plate 35 is provided with two avoidance inclined planes 352 on one side facing the roller 33, the two avoidance inclined planes 352 are located on opposite groove walls of the avoidance groove 351, the two avoidance inclined planes 352 extend from one end of the avoidance groove 351 away from the roller 33 toward one end of the avoidance groove 351 adjacent to the roller 33, so that an opening of the avoidance groove 351 adjacent to one end of the roller 33 is larger than an opening of the avoidance groove 351 away from one end of the roller 33, and when the peripheral surface of the roller 33 is exposed through the avoidance groove 351, the avoidance inclined planes 352 can avoid the roller 33, so that the opening of the avoidance groove 351 can be fully utilized by the roller 33. Further, the avoiding inclined plane 352 is an arc inclined plane, the arc of the arc inclined plane is parallel to the arc of the roller 33, and meanwhile, the radius of the arc of the avoiding inclined plane 352 is larger than that of the roller 33. When the peripheral surface of the roller 33 is exposed through the avoiding groove 351, the peripheral surface of the roller 33 needs to be tangent to the extending area of the abutting surface 311, or the peripheral surface of the roller 33 is slightly higher than the extending area of the abutting surface 311, so that the peripheral surface of the roller 33 can abut against the surface of the forming workpiece 100.

In some examples, as shown in fig. 5, the width of the mounting groove 22 corresponds to the width of the forming groove 21, and the width of the stripper block 31 is adapted to the width of the mounting groove 22. In this way, the demolding block 31 can fully utilize the width of the accommodating groove 34, the area of the propping surface 311 propping against the molded workpiece 100 is increased, and the protection of the workpiece is further improved.

In some examples, as shown in fig. 2 and 4, the mounting groove 22 has two oppositely disposed guide surfaces 221, the guide surfaces 221 being disposed toward the longitudinal direction of the forming groove 21, respectively, and the guide surfaces 221 being disposed obliquely from the bottom of the mounting groove 22 to the groove of the mounting groove 22 so that the notch of the mounting groove 22 is larger than the bottom of the mounting groove 22. The guide surfaces 221 which are obliquely arranged are beneficial to avoiding the rotation of the stripping module 31 when the stripping module 31 abuts against a workpiece, and meanwhile, when the stripping module 31 retreats to the mounting groove 22, the guide surfaces 221 can guide the stripping module 31 to retreat to the mounting groove 22, so that the convenience in use is improved.

In some examples, as shown in fig. 6, the demolding block 31 has a guiding surface 313 facing the guiding surface 221, and the guiding surface 313 is in surface contact with the guiding surface 221. The slope of the guide surface 313 is the same as the slope of the guide surface 221, thus facilitating the engagement of the guide surface 313 with the guide surface 221. Since the guide surface 313 and the guide surface 221 are both inclined, the convenience in retracting the knock out block 31 to the mounting groove 22 is further improved.

In some examples, as shown in fig. 4, the depth direction of the communication groove 23 is perpendicular to the length direction of the molding groove 21, and the communication groove 23 extends in the height direction of the female die. Because the groove depth direction of the communicating groove 23 is perpendicular to the length direction of the forming groove 21, the driving rod 32 can extend into the mounting groove 22 from the side edge of the female die, so that the overall thickness of the female die is reduced, and the overall weight of the female die is reduced.

In some examples, as shown in fig. 4 and 5, the driving rod 32 includes a connection section 321 and a rotation section 322, the rotation section 322 includes a connection portion 3221, and a first movable end 3222 and a second movable end 3223 respectively disposed at two ends of the connection portion 3221, and the connection portion 3221 is rotatably connected with the female die; one end of the connecting section 321 is rotatably connected with the demolding block 31 through the communicating groove 23, and the other end is fixedly connected with the first movable end 3222. The connection portion 3221 is used for being rotationally connected with a female die, the connection portion 3221 can be connected with the female die through a shaft, and the first movable end 3222 and the second movable end 3223 are respectively located at two ends of the connection portion 3221, so that the first movable end 3222 and the second movable end 3223 can rotate around the connection portion 3221 as the shaft. The first movable end 3222 is fixedly connected to the connection section 321, such that the first movable end 3222 can transmit a force to the connection section 321 when the first movable end 3222 rotates about the connection section 3221. In some examples, the length of first movable end 3222 is less than the length of second movable end 3223, such that when disengagement module 31 is actuated to move, second movable end 3223 requires less force to actuate disengagement module 31 to move.

In some examples, as shown in fig. 4, the depth direction of the communicating groove 23 is perpendicular to the length direction of the molding groove 21, and the communicating groove 23 extends in the height direction of the female die; the communication groove 23 is arc-shaped, and the arc of the communication groove 23 is parallel to the arc formed by the rotation of the first movable end 3222 around the connection portion 3221; and/or the number of the groups of groups,

the driving rod 32 further comprises a handle 323, and the handle 323 is fixedly connected with the second movable end 3223; and/or the number of the groups of groups,

the female die is provided with a rotating shaft 4, the connecting part 3221 is provided with a rotating hole, and the rotating shaft 4 is in running fit with the rotating hole; the longitudinal beam mold further comprises a torsion spring 5, the torsion spring 5 is sleeved on the rotating shaft 4, one end of the torsion spring 5 is connected with the first movable end 3222, the other end of the torsion spring is connected with the female mold, and the torsion spring is used for driving the demolding block 31 to enter the mounting groove 22. The depth direction of the communication groove 23, that is, the direction in which the communication groove 23 communicates with the mounting groove 22. The circular arc of the communication groove 23 is parallel to the circular arc formed by the rotation of the first movable end 3222 with the connecting portion 3221 as an axis, so that the interference between the groove wall of the communication groove 23 and the connecting section 321 can be avoided when the first movable end 3222 rotates, and the width of the communication groove 23 is reduced. The handle 323 is cylindrical, one end of the handle 323 is connected with the second movable end 3223, and the handle 323 is located at one side of the second movable end 3223 away from the female die, so that the operation is convenient for an operator. The torsion spring 5 drives the stripping module 31 to reset, so that the convenience of use is improved.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. An automotive chassis stringer mold, the stringer mold comprising:

the female die and the male die can move relatively to each other so as to perform die assembly and die opening;

a mounting groove is formed at one end of the bottom of the female die forming groove, a communicating groove is formed on the groove wall of the mounting groove, and the communicating groove is communicated with the mounting groove and the outside of the female die;

the demoulding assembly comprises a demoulding module and a driving rod, the demoulding block is arranged in the mounting groove and is provided with a propping surface which is flush with the bottom wall of the forming groove, and the propping surface is configured to prop against a formed workpiece;

one end of the driving rod penetrates through the communication groove and is rotationally connected with the demolding block, the driving rod is used for driving the demolding block to move upwards, and when the demolding block pushes a molded workpiece out of the molding groove, the demolding block can rotate along with the rotation of the workpiece, so that the propped surface is kept in fit with the surface of the workpiece.

2. The stringer mold of claim 1, wherein said ejector block has a rotating cavity with a cavity opening located on said abutment surface;

the demolding assembly further comprises a roller, the roller is rotatably arranged in the rotating cavity, and the peripheral surface of the roller is tangent to the extending area of the abutting surface.

3. The stringer mold of claim 2, wherein a plurality of said rotational cavities are provided, said plurality of rotational cavities being spaced apart along a length of said abutment surface, said plurality of rotational cavities extending along a width of said abutment surface;

the number of the rollers is multiple, and the rollers are in rotatable fit with the rotating cavity.

4. The stringer mold of claim 1, wherein the demolding block comprises a block body and an abutment plate, the block body is provided with a receiving groove and a rotating groove, an opening of the receiving groove is positioned at the top of the block body, an opening area of the receiving groove is larger than an opening area of the rotating groove, and the rotating groove is positioned in a concave area of the receiving groove;

the abutting plate is arranged in the accommodating groove and covers the notch of the rotating groove so that the block body and the abutting plate are enclosed to form a rotating cavity; the abutting surface is positioned at one side of the abutting plate, which is away from the accommodating cavity, and the abutting plate is provided with an avoidance groove which is communicated with the rotating cavity and the outside of the demolding block;

the demolding assembly further comprises a roller, the roller is rotatably arranged in the rotating cavity, and the roller is exposed through the avoidance groove.

5. The stringer mold of any of claims 1 to 4, wherein a width of said mounting groove is identical to a width of said molding groove, and a width of said stripper block is adapted to a width of said mounting groove.

6. The side member mold according to any one of claims 1 to 4, wherein the mounting groove has two oppositely disposed guide surfaces, the guide surfaces being disposed toward the longitudinal direction of the molding groove, respectively, the guide surfaces being disposed obliquely from the bottom of the mounting groove toward the groove of the mounting groove so that the notch of the mounting groove is larger than the bottom of the mounting groove.

7. The stringer mold of claim 6, wherein said ejector block has a guide surface facing said guide surface, said guide surface conforming to said guide surface.

8. The side member mold according to claim 1, wherein a groove depth direction of the communicating groove is perpendicular to a length direction of the molding groove, and the communicating groove extends in a height direction of the female die.

9. The stringer mold of claim 1, wherein the driving rod includes a connecting section and a rotating section, the rotating section includes a connecting portion, and a first movable end and a second movable end respectively provided at both ends of the connecting portion, the connecting portion being rotatably connected to the female die;

one end of the connecting section is rotatably connected with the removing module by penetrating through the communicating groove, and the other end of the connecting section is fixedly connected with the first movable end.

10. The side member mold according to claim 9, wherein a groove depth direction of the communicating groove is perpendicular to a length direction of the molding groove, the communicating groove extending in a height direction of the female die; the communication groove is arranged in an arc shape, and the arc of the communication groove is parallel to the arc formed by rotation of the first movable end by taking the connecting part as an axis; and/or the number of the groups of groups,

the driving rod further comprises a handle, and the handle is fixedly connected with the second movable end; and/or the number of the groups of groups,

the female die is provided with a rotating shaft, the connecting part is provided with a rotating hole, and the rotating shaft is in running fit with the rotating hole; the longitudinal beam mold further comprises a torsion spring, and the torsion spring is sleeved on the rotary mold

One end of the torsion spring is connected with the first movable end, the other end is connected with the bottom of the female die,

the torsion spring is used for driving the demolding block to enter the mounting groove.