Automatic positioning servo feeding mechanism for frameless soft extrusion strips

Abstract

The invention relates to a frameless soft extrusion strip automatic positioning servo feeding mechanism which comprises an injection mold bottom plate, a feeding mechanism supporting plate is connected to the injection mold bottom plate, a quick release assembly is arranged on the feeding mechanism supporting plate, a sliding-out type plate is installed on the feeding mechanism supporting plate through the quick release assembly, a supporting plate is fixed to the sliding-out type plate, a sliding plate is installed on the supporting plate, and the sliding plate is provided with a feeding mechanism. A first profiling block, a second profiling block, a third profiling block and a tail end profiling block are sequentially arranged on the sliding plate, a servo electric cylinder is installed on the side wall of the supporting plate, the end of a piston rod of the servo electric cylinder is fixedly connected with the sliding plate through a sliding connecting rod assembly, an air cylinder is installed on one side of the sliding plate, and a cavity inserting plate is arranged on the opposite side of the first profiling block. A rotary connecting rod is hinged between the end of a piston rod of the air cylinder and the cavity inserting plate. The production efficiency is improved, the feeding time is greatly shortened, the forming quality and the qualified rate of products are improved, the labor intensity and the labor cost are reduced, the adaptability with the mold is enhanced, quick disassembly is achieved, and follow-up maintenance and replacement are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of skeleton-free soft extrusion strip loading, and particularly relates to an automatic positioning servo loading mechanism for skeleton-free soft extrusion strips. BACKGROUND

[0002] In the process of automobile manufacturing, a large number of skeleton-free soft sealing strips are produced by injection molding process. As a key production equipment, the production efficiency and product quality of the injection mold are crucial. At present, in the injection molding production line, there are many problems in the loading link of automobile skeleton-free soft extrusion strips.

[0003] Manual loading is still a common way, but the efficiency is very low. Injection molding production usually has strict production rhythm, and manual loading is slow and unstable, which is easily affected by the state of workers, leading to mold waiting for loading, prolonging the production cycle and reducing the overall production efficiency. For example, in mass production, manual loading cannot provide extrusion strips for injection molds in time, which makes the molds idle and increases the time cost. In terms of precision, manual operation cannot guarantee the accurate placement of extrusion strips in the mold. The skeleton-free soft extrusion strip has a complex shape and is overall soft, and the installation position and angle are required to be high, manual placement is prone to deviation, which leads to inaccurate position of the extrusion strip in the injection molding process, affects the product forming quality, and may cause defects such as extrusion strip not fitting the mold cavity, flash, material shortage, etc., reducing the product qualification rate. Moreover, manual loading easily causes damage to the extrusion strip, the sealing strip material is soft, and manual loading is prone to scratching, extrusion and stretching deformation, affecting its performance and appearance, increasing the scrap rate and production cost.

[0004] Some existing automatic loading mechanisms are mostly suitable for skeleton-free hard extrusion strips, because the skeleton-free hard extrusion strips are not easy to deform under stress. The only existing semi-automatic auxiliary loading mechanism for soft strips has poor compatibility with injection molds, cannot accurately load according to the mold opening and closing actions and injection rhythm, and is prone to improper loading time, leading to incorrect placement of the extrusion strip or collision with the mold. Some mechanisms have complex structures, are difficult to disassemble, have high maintenance costs, and have poor universality, and are difficult to adapt to the production needs of skeleton-free soft extrusion strips of different specifications and shapes.

[0005] With the continuous improvement of the requirements of the automobile industry on production efficiency and product quality, it is urgent to develop an automatic loading mechanism for skeleton-free soft extrusion strips which has good adaptability to injection molds and can efficiently and accurately load. SUMMARY

[0006] The present application aims to solve the problems of the prior art and provides an automatic positioning servo loading mechanism for skeleton-free soft extrusion strips.

[0007] To achieve the above-mentioned purpose, the following technical solutions are adopted in the present application:

[0008] The application discloses an automatic positioning servo feeding mechanism for a skeleton-free soft extrusion strip, which comprises an injection mold base plate, a feeding mechanism support plate fixedly connected to the injection mold base plate, a quick-release assembly arranged on the feeding mechanism support plate and used for locking a sliding-out mold plate, a support plate fixedly arranged on the sliding-out mold plate, a sliding plate arranged on the support plate, a first profiling block, a second profiling block, a third profiling block and a terminal profiling block arranged in sequence on the sliding plate, a servo cylinder arranged on a side wall of the support plate, a piston rod end of the servo cylinder fixedly connected to the sliding plate through a sliding link assembly, a cylinder arranged on one side of the sliding plate, a cavity plug plate arranged on the opposite side of the first profiling block, and a rotating link hinged between a piston rod end of the cylinder and the cavity plug plate.

[0009] The quick-release assembly comprises a fixed plate fixed to the feeding mechanism support plate, an eccentric wheel mounting plate fixed to the upper surface of the fixed plate, a side baffle fixed to the side surface of the fixed plate, the sliding-out mold plate arranged on the upper surface of the fixed plate and located between the eccentric wheel mounting plate and the side baffle, an installation groove arranged at the bottom of the side of the eccentric wheel mounting plate close to the sliding-out mold plate and a wedge-shaped pressing plate arranged in the installation groove, wedge-shaped surfaces arranged on the butt-joint ends of the wedge-shaped pressing plate and the sliding-out mold plate and locked through the wedge-shaped surfaces, two limiting pins arranged in the eccentric wheel mounting plate and penetrating through the wedge-shaped pressing plate, springs sleeved on the limiting pins and connected to the side wall of the wedge-shaped pressing plate, an eccentric wheel mounting hole penetrating through the eccentric wheel mounting plate and an eccentric wheel rotatably arranged in the eccentric wheel mounting hole through a rotating shaft sleeve, the side wall of the eccentric wheel in contact with the wedge-shaped pressing plate, a rotating handle arranged on one side of the eccentric wheel, a ball head locking pin penetrating through and arranged on the side wall of the eccentric wheel mounting plate, a locking groove matched with the ball head locking pin arranged on the side wall of the eccentric wheel, the ball head locking pin inserted into the locking groove, and a limiting block arranged on the upper surface of the eccentric wheel mounting plate at one side of the eccentric wheel.

[0010] A linear sliding rail is arranged on the support plate, a sliding block is arranged at the bottom of the sliding plate, and the sliding block is slidingly arranged on the linear sliding rail.

[0011] The terminal profiling block is slidingly arranged on the sliding plate, a jacking block is arranged on the outer side of the terminal profiling block, a jacking rod is arranged on the jacking block, a jacking spring is arranged at the end of the jacking rod facing the terminal profiling block, the jacking spring contacts the outer side of the terminal profiling block, a size adjusting block is connected to the jacking block, an adjusting strip-shaped hole is formed in the size adjusting block, a fixing bolt is arranged in the adjusting strip-shaped hole and locked on the sliding plate through the fixing bolt.

[0012] First and second cylinder brackets are arranged on the side wall of the support plate and correspond to the servo cylinder, and the servo cylinder is arranged between the first and second cylinder brackets.

[0013] The sliding link assembly comprises a first sliding link fixed to the sliding plate and a second sliding link fixed to the piston rod end of the servo cylinder, and the first and second sliding links are fixedly connected.

[0014] The first sensor sensing contact is arranged on the side wall of the sliding plate, and the first inductive sensor is arranged on the side wall of the supporting plate corresponding to the first sensor sensing contact.

[0015] The cylinder support is fixed on the side wall of the sliding plate, and the cylinder is arranged on the cylinder support.

[0016] The U-shaped block is fixed on the end of the piston rod of the cylinder, the two ear plates are arranged on the cavity inserting plate, one end of the rotary connecting rod is hinged between the two side plates of the U-shaped block through the shoulder bolt, and the other end is hinged between the two ear plates through the shoulder bolt.

[0017] The second sensor sensing contact is fixed on the U-shaped block, and the two second inductive sensors are arranged on the side wall of the sliding plate through the support.

[0018] The application has the advantages that the application improves the production efficiency, greatly shortens the feeding time, reduces the mold waiting time, realizes the precise positioning and adjustment function, improves the product forming quality and the qualified rate, reduces the labor intensity and the manpower cost, enhances the adaptability and the quick disassembly of the mold, and is convenient for subsequent maintenance and replacement. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of one direction of the application;

[0020] Figure 2 It is a structural schematic diagram of another direction of the application;

[0021] Figure 3 It is a structural schematic diagram of the quick disassembly assembly;

[0022] Figure 4 It is a schematic diagram of the quick disassembly assembly after omitting the eccentric wheel mounting type plate;

[0023] Figure 5 It is a schematic diagram of the supporting plate and the sliding plate installed through the linear slide rail and the sliding block;

[0024] Figure 6 It is a schematic diagram of the application in use;

[0025] Figure 7 It is a sectional schematic diagram of the boneless soft extruded strip;

[0026] In the figure: 1-injection mold base plate; 2-feeding mechanism support plate; 3-quick release assembly; 4-sliding out mold plate; 5-support plate; 6-sliding plate; 7-first profiling block; 8-second profiling block; 9-third profiling block; 10-end profiling block; 11-servo cylinder; 12-sliding link assembly; 13-cylinder; 14-cavity plug plate; 15-rotary link; 16-linear slide rail; 17-sliding block; 18-tight block; 19-tight rod; 20-tight spring; 21-size adjusting block; 22-adjusting strip hole; 23-fixing bolt; 24-first cylinder bracket; 25-second cylinder bracket; 26-first sensor sensing contact; 27-first inductive sensor; 28-cylinder bracket; 29-U-shaped block; 30-ear plate; 31-second sensor sensing contact; 32-second inductive sensor; 33-boneless soft extruded strip;

[0027] 301-fixed plate; 302-eccentric wheel mounting mold plate; 303-side baffle; 304-wedge-shaped pressing plate; 305-limiting pin; 306-spring; 307-rotary shaft sleeve; 308-eccentric wheel; 309-rotary handle; 310-ball head locking pin; 311-limiting block;

[0028] The present application will be described in detail below with reference to the embodiments thereof. DETAILED DESCRIPTION

[0029] The principles and features of the present application will be described below in conjunction with the accompanying drawings and embodiments. The embodiments are only used to explain the present application and are not intended to limit the scope of the present application. In the following paragraphs, the present application will be described in more detail with reference to the accompanying drawings. The advantages and features of the present application will be more apparent from the following description. It should be noted that the drawings are very simplified and use non-precise proportions, only for the purpose of facilitating and clearly assisting the description of the embodiments of the present application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] The present application will be further described below in conjunction with the accompanying drawings and embodiments:

[0032] A boneless soft extruded strip automatic positioning servo feeding mechanism, such as Figure 1 , Figure 2As shown, including injection mold base plate 1, feeding mechanism support plate 2, quick release assembly 3, slide out plate 4, support plate 5, sliding plate 6, first profiling block 7, second profiling block 8, third profiling block 9, end profiling block 10, servo cylinder 11, sliding link assembly 12, cylinder 13, cavity plug plate 14, rotary link 15, linear slide 16, slider 17, tight block 18, tight rod 19, tight spring 20, size adjusting block 21, adjusting strip hole 22, fixing bolt 23, first cylinder bracket 24, second cylinder bracket 25, first sensor sensing contact 26, first inductive sensor 27, cylinder bracket 28, U-shaped block 29, ear plate 30, second sensor sensing contact 31 and second inductive sensor 32.

[0033] The injection mold base plate 1 is fixedly connected with the feeding mechanism support plate 2, and the feeding mechanism support plate 2 is provided with the quick release assembly 3 and is locked and installed with the slide out plate 4 through the quick release assembly 3.

[0034] The quick release assembly 3, as shown in Figure 3 , Figure 4 , comprises a fixed plate 301, an eccentric wheel mounting plate 302, a side baffle 303, a wedge-shaped pressing plate 304, a limiting pin 305, a spring 306, a rotary shaft sleeve 307, an eccentric wheel 308, a rotary handle 309, a ball head locking pin 310 and a limiting block 311.

[0035] The fixed plate 301 is fixedly connected on the feeding mechanism support plate 2, the upper surface of the fixed plate 301 is fixedly provided with the eccentric wheel mounting plate 302, the side surface of the fixed plate 301 is fixedly provided with the side baffle 303, the slide out plate 4 is arranged on the upper surface of the fixed plate 301 and located between the eccentric wheel mounting plate 302 and the side baffle 303, the side close to the slide out plate 4 of the eccentric wheel mounting plate 302 is provided with a mounting groove and the mounting groove is provided with the wedge-shaped pressing plate 304, the wedge-shaped pressing plate 304 and the butt joint end of the slide out plate 4 are both provided with wedge surfaces and are locked through the wedge surfaces, two limiting pins 305 are arranged in the eccentric wheel mounting plate 302 and pass through the wedge-shaped pressing plate 304, the spring 306 is sleeved on the limiting pin 305 and connected with the side wall of the wedge-shaped pressing plate 304, the eccentric wheel mounting hole is penetrated through the eccentric wheel mounting plate 302 and the eccentric wheel 308 is rotatably arranged in the eccentric wheel mounting hole through the rotary shaft sleeve 307, the side wall of the eccentric wheel 308 is in contact with the wedge-shaped pressing plate 304, the rotary handle 309 is arranged on one side of the eccentric wheel 308, the ball head locking pin 310 is arranged on the side wall of the eccentric wheel mounting plate 302, the locking groove matched with the ball head locking pin 310 is arranged on the side wall of the eccentric wheel 308, the ball head locking pin 310 is inserted into the locking groove, and the limiting block 311 is arranged on the upper surface of the eccentric wheel mounting plate 302 on one side of the eccentric wheel 308.

[0036] The support plate 5 is fixedly arranged on the slide out plate 4, and the sliding plate 6 is arranged on the support plate 5, and the specific structure is as shown inFigure 5 As shown in the figure, the support plate 5 is provided with a linear slide rail 16, and the bottom of the sliding plate 6 is provided with a sliding block 17 which is slidingly installed on the linear slide rail 16.

[0037] The sliding plate 6 is sequentially provided with a first profiling block 7, a second profiling block 8, a third profiling block 9 and a terminal profiling block 10, the terminal profiling block 10 is slidingly installed on the sliding plate 6, the outer side of the terminal profiling block 10 is provided with a jacking block 18, the jacking block 18 is installed with a jacking rod 19, one end of the jacking rod 19 facing the terminal profiling block 10 is provided with a jacking spring 20 which contacts the outer side of the terminal profiling block 10, the jacking block 18 is connected with a size adjusting block 21, the size adjusting block 21 is provided with an adjusting strip-shaped hole 22, the adjusting strip-shaped hole 22 is provided with a fixing bolt 23 and is locked on the sliding plate 6 through the fixing bolt 23.

[0038] The support plate 5 is installed with a servo electric cylinder 11 on the side wall, the support plate 5 is provided with a first electric cylinder support 24 and a second electric cylinder support 25 on the side wall corresponding to the servo electric cylinder 11, and the servo electric cylinder 11 is installed between the first electric cylinder support 24 and the second electric cylinder support 25.

[0039] The end of the piston rod of the servo electric cylinder 11 is fixedly connected with the sliding plate 6 through a sliding link assembly 12, the sliding link assembly 12 includes a first sliding link fixed on the sliding plate 6 and a second sliding link fixed on the end of the piston rod of the servo electric cylinder 11, and the first sliding link and the second sliding link are fixedly connected.

[0040] The sliding plate 6 is installed with a first sensor sensing contact 26 on the side wall, and the support plate 5 is installed with a first inductive sensor 27 on the side wall corresponding to the first sensor sensing contact 26.

[0041] The sliding plate 6 is installed with a pneumatic cylinder 13 on one side, and the sliding plate 6 is fixed with a pneumatic cylinder support 28 on the side wall, and the pneumatic cylinder 13 is installed on the pneumatic cylinder support 28.

[0042] The opposite side of the first profiling block 7 is provided with a cavity inserting plate 14, and a rotating link 15 is hinged between the end of the piston rod of the pneumatic cylinder 13 and the cavity inserting plate 14.

[0043] The end of the piston rod of the pneumatic cylinder 13 is fixed with a U-shaped block 29, the cavity inserting plate 14 is provided with two ear plates 30, one end of the rotating link 15 is hinged between the two side plates of the U-shaped block 29 through a shoulder bolt and the other end is hinged between the two ear plates 30 through a shoulder bolt.

[0044] The U-shaped block 29 is fixed with a second sensor sensing contact 31, and the sliding plate 6 is fixed with two second inductive sensors 32 through supports on the side wall.

[0045] The use state of the present application is as shown in the figure, and the specific operation is as follows: Figure 6 As shown in the figure, the specific operation is as follows:

[0046] Automatic feeding mechanism and rapid disassembly of injection mold: in the case of automatic feeding mechanism Figure 1 , Figure 2 , pull out the ball head locking pin 310, then rotate the handle 309 horizontally to rotate the eccentric wheel 308, rotate 90°, the limit block 311 can limit the rotation angle of the rotating handle 309, after a certain distance between the eccentric wheel 308 and the wedge-shaped pressing plate 304, under the action of the spring 306, the wedge-shaped pressing plate 304 is popped back 15mm, the wedge-shaped pressing plate 304 and the sliding out of the mold plate 4 are wedge-shaped, after the wedge-shaped pressing plate 304 is popped back, the sliding out of the mold plate 4 and all the parts fixed on it can slide out of the fixed plate 301, the above is the disassembly process of the automatic feeding mechanism; When installing, only need to rotate the eccentric wheel 308 back to the initial position, and then insert the ball head locking pin 310 into the eccentric wheel mounting plate 302, the wedge-shaped pressing plate 304 and the sliding out of the mold plate 4 can be clamped and interlocked.

[0047] Feeding process: the cavity plug-in plate 14 is driven by the cylinder 13 to turn over 70° outward, and the section of the skeletonless soft extrusion strip 33 to be fed is as shown in Figure 7 . The operator puts the skeletonless soft extrusion strip 33 in the first profiling block 7, the second profiling block 8, the third profiling block 9 and the end profiling block 10, and the end profiling block 10 simultaneously positions the end of the skeletonless soft extrusion strip 33. The cylinder 13 drives the cavity plug-in plate 14 to turn back to the original position, at this time the skeletonless soft extrusion strip 33 has been completely fixed. The servo cylinder 11 pushes the sliding plate 6 and the first profiling block 7, the second profiling block 8, the third profiling block 9 and the end profiling block 10 above it, and accurately pushes the skeletonless soft extrusion strip 33 into the mold cavity.

[0048] The innovation of the present application lies in the following aspects:

[0049] 1. The automatic feeding mechanism is convenient to disassemble, the spherical rotating handle 309 is connected to the eccentric wheel 308, and the eccentric wheel 308 can realize clamping and releasing parts after rotation, the clamping area is designed in a wedge-shaped clamping mode, so that self-locking and tight cooperation between parts are achieved, which not only meets the convenient disassembly of the automatic feeding mechanism, but also ensures the accuracy of the installation position.

[0050] 2. The design of multiple profiling blocks and the turnable cavity plug-in plate 14 can solve the problems of difficult fixation and easy deformation of the skeletonless soft extrusion strip 33, thereby completely realizing the automatic feeding of the skeletonless soft extrusion strip 33.

[0051] 3. Strong universality, only need to replace the profiling block to adapt to the automatic feeding demand of skeletonless soft extrusion strips 33 of different specifications and shapes.

[0052] The present application improves production efficiency: automated feeding process, combined with precise synchronization with the mold, greatly shortens the feeding time, reduces the mold waiting time, significantly shortens the injection molding production cycle, significantly improves the production efficiency, and greatly improves the production efficiency compared with the traditional manual feeding method.

[0053] The present application improves product quality: precise positioning and adjustment function, ensures accurate placement of skeleton-free soft extruded strip 33 in the mold, reduces injection molding defects caused by inaccurate feeding, improves product forming quality and pass rate. At the same time, it avoids damage to the skeleton-free soft extruded strip 33 by manual operation, and ensures the appearance and performance of the product.

[0054] The present application reduces labor intensity and labor cost: realizes the automation of the feeding process, reduces manual operation, reduces the labor intensity of workers, and also reduces the labor cost investment of enterprises.

[0055] The present application enhances the adaptability and quick disassembly of the mold: it can be quickly and accurately connected with different types of injection molding molds, and can be used after replacing the appropriate profiling block, improving the universality and practicality of the mechanism, and also facilitating subsequent maintenance and replacement.

[0056] The present application has been described above in conjunction with the drawings, and it is obvious that the specific implementation of the present application is not limited by the above method. Any improvement or direct application to other occasions using the method concept and technical solution of the present application is within the protection scope of the present application.

Claims

1. A skeleton-free soft extruded bar automatic positioning servo feeding mechanism, characterized in that, The utility model relates to an injection mold bottom plate (1) is connected with the upper feeding mechanism support plate (2) fixedly, and the upper feeding mechanism support plate (2) is equipped with quick release assembly (3) and is locked with the slide -out type board (4) through quick release assembly (3) and is installed, and the slide -out type board (4) is fixed with the support plate (5), and the support plate (5) is installed with the sliding plate (6), and the sliding plate (6) is equipped with first profiling block (7), second profiling block (8), third profiling block (9) and end profiling block (10) in proper order, and the support plate (5) side wall is installed with servo electric jar (11), and the piston rod end of servo electric jar (11) is fixedly connected with the sliding plate (6) through the sliding link assembly (12), and the one side of sliding plate (6) is installed with the cylinder (13), and the opposite side of first profiling block (7) is equipped with cavity plug -in board (14), and the piston rod end of cylinder (13) is hinged with the cavity plug -in board (14) between and is equipped with rotary link (15).

2. The automatic positioning servo feeding mechanism for skeleton-free soft extruded bar according to claim 1, characterized in that, The utility model relates to an injection mold bottom plate (1) is connected with the upper feeding mechanism support plate (2) fixedly, and the upper feeding mechanism support plate (2) is equipped with quick release assembly (3) and is locked with the slide -out type board (4) through quick release assembly (3) and is installed, and the slide -out type board (4) is fixed with the support plate (5), and the support plate (5) is installed with the sliding plate (6), and the sliding plate (6) is equipped with first profiling block (7), second profiling block (8), third profiling block (9) and end profiling block (10) in proper order, and the support plate (5) side wall is installed with servo electric jar (11), and the piston rod end of servo electric jar (11) is fixedly connected with the sliding plate (6) through the sliding link assembly (12), and the one side of sliding plate (6) is installed with the cylinder (13), and the opposite side of first profiling block (7) is equipped with cavity plug -in board (14), and the piston rod end of cylinder (13) is hinged with the cavity plug -in board (14) between and is equipped with rotary link (15).

3. The automatic positioning servo feeding mechanism for skeleton-free soft extruded bar according to claim 1, characterized in that, The utility model relates to an injection mold bottom plate (1) is connected with the upper feeding mechanism support plate (2) fixedly, and the upper feeding mechanism support plate (2) is equipped with quick release assembly (3) and is locked with the slide -out type board (4) through quick release assembly (3) and is installed, and the slide -out type board (4) is fixed with the support plate (5), and the support plate (5) is installed with the sliding plate (6), and the sliding plate (6) is equipped with first profiling block (7), second profiling block (8), third profiling block (9) and end profiling block (10) in proper order, and the support plate (5) side wall is installed with servo electric jar (11), and the piston rod end of servo electric jar (11) is fixedly connected with the sliding plate (6) through the sliding link assembly (12), and the one side of sliding plate (6) is installed with the cylinder (13), and the opposite side of first profiling block (7) is equipped with cavity plug -in board (14), and the piston rod end of cylinder (13) is hinged with the cavity plug -in board (14) between and is equipped with rotary link (15). The utility model relates to an injection mold bottom plate (1) is connected with the upper feeding mechanism support plate (2) fixedly, and the upper feeding mechanism support plate (2) is equipped with quick release assembly (3) and is locked with the slide -out type board (4) through quick release assembly (3) and is installed, and the slide -out type board (4) is fixed with the support plate (5), and the support plate (5) is installed with the sliding plate (6), and the sliding plate (6) is equipped with first profiling block (7), second profiling block (8), third profiling block (9) and end profiling block (10) in proper order, and the support plate (5) side wall is installed with servo electric jar (11), and the piston rod end of servo electric jar (11) is fixedly connected with the sliding plate (6) through the sliding link assembly (12), and the one side of sliding plate (6) is installed with the cylinder (13), and the opposite side of first profiling block (7) is equipped with cavity plug -in board (14), and the piston rod end of cylinder (13) is hinged with the cavity plug -in board (14) between and is equipped with rotary link (15).

4. The automatic positioning servo feeding mechanism for skeleton-free soft extruded bar according to claim 1, characterized in that, The end profiling block (10) is slidingly installed on the sliding plate (6), the outer side of the end profiling block (10) is provided with a jacking block (18), the jacking block (18) is installed with a jacking rod (19), the jacking rod (19) is provided with a jacking spring (20) at the end facing the end profiling block (10), the jacking spring (20) contacts the outer side of the end profiling block (10), the jacking block (18) is connected with a size adjusting block (21), the size adjusting block (21) is provided with an adjusting strip-shaped hole (22), the adjusting strip-shaped hole (22) is provided with a fixing bolt (23) and is locked on the sliding plate (6) through the fixing bolt (23).

5. The automatic positioning servo feeding mechanism for skeleton-free soft extruded bar according to claim 1, characterized in that, The support plate (5) is provided with a first cylinder support (24) and a second cylinder support (25) on the side wall corresponding to the servo electric cylinder (11), and the servo electric cylinder (11) is installed between the first cylinder support (24) and the second cylinder support (25).

6. The automatic positioning servo feeding mechanism for skeleton-free soft extruded bar according to claim 1, characterized in that, The sliding link assembly (12) comprises a first sliding link fixed on the sliding plate (6) and a second sliding link fixed on the end of the piston rod of the servo electric cylinder (11), and the first sliding link and the second sliding link are fixedly connected.

7. The automatic positioning servo feeding mechanism for skeleton-free soft extruded bar according to claim 1, characterized in that, The sliding plate (6) is provided with a first sensor sensing contact (26) on the side wall, and the support plate (5) is provided with a first inductive sensor (27) on the side wall corresponding to the first sensor sensing contact (26).

8. The automatic positioning servo feeding mechanism for skeleton-free soft extruded bar according to claim 1, characterized in that, The sliding plate (6) is provided with a cylinder support (28) on the side wall, and the cylinder (13) is installed on the cylinder support (28).

9. The automatic positioning servo feeding mechanism for skeleton-free soft extruded bar according to claim 1, characterized in that, The end of the piston rod of the cylinder (13) is fixed with a U-shaped block (29), the mold cavity plug-in plate (14) is provided with two ear plates (30), and the rotary link (15) is hinged between the two side plates of the U-shaped block (29) through a shoulder bolt at one end and is hinged between the two ear plates (30) through a shoulder bolt at the other end.

10. The automatic positioning servo feeding mechanism for skeleton-free soft extruded bar according to claim 9, characterized in that, The U-shaped block (29) is fixed with a second sensor sensing contact (31), and the sliding plate (6) is provided with two second inductive sensors (32) on the side wall through a support.

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