Bent pipe forming spine core-pulling mold structure

Abstract

The utility model relates to the technical field of bent pipe forming core-pulling molds, in particular to a bent pipe forming spine core-pulling mold structure which comprises a base, a lower mold body is arranged at the upper end of the base, an upper mold body is arranged at the upper end of the lower mold body, and a supporting plate is fixedly connected to the right end of the lower mold body. A motor is fixedly installed on the right side of the lower end of the supporting plate, an output shaft of the motor is fixedly connected with a screw rod, and the outer side of the screw rod is connected with a connecting frame through threads. Through the arrangement of the upper mold body and the lower mold body, the elbow can be subjected to injection molding, under the structures of the motor, the screw rod and the like, the connecting frame can be driven to drive the end head to move, then the flexible spine body is driven to move, the formed elbow is subjected to core pulling treatment, and under the structures of the positioning holes, the positioning balls and the like, the elbow is subjected to core pulling treatment. And the connecting frame can be limited, so that the extracted flexible spine body is positioned and used.

Description

Technical Field

[0001] The utility model relates to the technical field of core-pulling dies for bending tube forming, in particular to a core-pulling dies structure for bending tube forming spine. Background Art

[0002] A core-pulling die for pipe bending is a mold used to manufacture pipe bends. During the pipe bending process, a core-pulling die is often required to assist in forming the bend. This die can create a hollow or shaped structure in the metal pipe, thereby achieving the desired bend shape and size.

[0003] In the utility model patent with patent authorization announcement number CN214026994U, a core pulling structure of a bending pipe mold is disclosed, which includes a core mold body. The core mold body includes a first slider that can move up and down, a second slider that can move left and right and is arranged perpendicular to the first slider, and a first insert, a second insert and a third insert arranged at the angle between the first slider and the second slider. A first insert positioning groove is provided at the lower end of one side of the first slider, a first insert positioning block that can be inserted into the first insert positioning groove is provided at the upper ends of the first insert and the second insert, a second insert positioning groove is provided at the lower end of the second insert, and a second insert positioning block that can be inserted into the second insert positioning groove is provided at the upper end of the third insert.

[0004] However, the existing bending tube forming spine core pulling mold structure also has certain shortcomings. Although the existing bending tube forming spine core pulling mold structure uses motors, screws and other driving parts to complete the core pulling process of the flexible spine, due to the influence of factors such as inertia, it is easy to cause unnecessary movement of the flexible spine. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a core-pulling die structure for forming a bent tube spine.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A tube bending and forming spine core-pulling die structure comprises a base, a lower die body is provided at the upper end of the base, an upper die body is provided at the upper end of the lower die body, a support plate is fixedly connected to the right end of the lower end of the support plate, a motor is fixedly installed on the right side of the lower end of the support plate, a screw is fixedly connected to the output shaft of the motor, and a connecting frame is connected to the outer side of the screw via a thread;

[0008] The vertical part of the connecting frame is slidably connected to the support plate, and the horizontal part of the connecting frame is fixedly connected to two evenly distributed end heads, each of which is slidably connected to the upper mold body and the lower mold body, and a flexible spine body is provided at the left end of each end head. A positioning mechanism is commonly provided on the support plate and the connecting frame, and a guide mechanism is commonly provided on the lower mold body and the screw.

[0009] In addition, the preferred structure is that the end faces of the two flexible spine bodies are in contact with each other, and each flexible spine body is slidably connected to the upper mold body and the lower mold body. Through the setting of the flexible spine body, it can be used for subsequent bending pipe forming.

[0010] In addition, the preferred structure is that the positioning mechanism includes a positioning hole, a positioning hole is opened at the upper end of the support plate, the horizontal part of the connecting frame is slidably connected to the telescopic rod, the upper end of the telescopic rod is fixedly connected to the connecting plate, a spring is provided on the outside of the telescopic rod, one end of the spring is welded to the connecting plate, and the other end of the spring is welded to the connecting frame, the lower end of the telescopic rod is fixedly connected to a positioning ball, and the positioning ball is slidably connected to the positioning hole. Through the action of the positioning hole, positioning ball and other structures, the connecting frame can be limited, and then the position of the flexible spinal body can be positioned and used.

[0011] In addition, a preferred structure is that a plurality of positioning holes are provided, and the plurality of positioning holes are evenly distributed on the support plate. The provision of the positioning holes facilitates positioning in conjunction with positioning balls.

[0012] In addition, the preferred structure is that the guide mechanism includes a rotating disk, the left end of the screw is fixedly connected to the rotating disk, and the right end of the lower mold body is fixedly connected to two symmetrically distributed fixing ears, and each of the fixing ears is bonded with an elastic block on the end face close to the rotating disk, and the other end of the elastic block is bonded with a guide plate, and the guide plate is in contact with the rotating disk. By setting the guide plate, elastic block and other structures, the rotating disk can be limited in rotation.

[0013] In addition, a preferred structure is that the guide piece is in an arc shape as a whole and is made of a wear-resistant ceramic material. By setting the wear-resistant ceramic material, the guide piece can have a good wear-resistant effect.

[0014] The beneficial effects of the present invention are as follows: through the setting of the upper mold body and the lower mold body, the bent pipe can be injection molded, and under the structure of the motor, screw, etc., the connecting frame can be driven to drive the end head to move, and then drive the flexible spine body to move, and the core of the formed bent pipe can be pulled out, and under the structure of the positioning hole, positioning ball, etc., the connecting frame can be limited, and then the extracted flexible spine body can be positioned for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the overall structure of a core-pulling die structure for forming a bent tube spine proposed in the utility model;

[0016] Figure 2 The utility model proposes a bending tube forming spine core pulling mold structure Figure 1 A bottom-up stereogram;

[0017] Figure 3 The utility model proposes a bending tube forming spine core pulling mold structure Figure 1 A three-dimensional diagram of the upper mold body;

[0018] Figure 4 The utility model proposes a bending tube forming spine core pulling mold structure Figure 1 Three-dimensional view of the upper mold body;

[0019] Figure 5 The utility model proposes a bending tube forming spine core pulling mold structure Figure 1 A three-dimensional diagram of the positioning mechanism;

[0020] Figure 6 The utility model proposes a bending tube forming spine core pulling mold structure Figure 2 A three-dimensional diagram of the guide mechanism.

[0021] In the figure: 1. base; 2. lower mold body; 3. upper mold body; 4. support plate; 5. motor; 6. screw; 7. connecting frame; 8. end; 9. flexible spine body; 10. positioning mechanism; 11. guide mechanism; 101. positioning hole; 102. telescopic rod; 103. connecting plate; 104. spring; 105. positioning ball; 111. rotating disk; 112. fixing ear; 113. elastic block; 114. guide plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 A tube bending forming spine core pulling mold structure includes a base 1, a lower mold body 2 is provided on the upper end of the base 1, an upper mold body 3 is provided on the upper end of the lower mold body 2, a support plate 4 is fixedly connected to the right end of the lower end of the support plate 4, a motor 5 is fixedly installed on the right side of the lower end of the support plate 4, the output shaft of the motor 5 is fixedly connected to a screw 6, and the outer side of the screw 6 is connected to a connecting frame 7 through a thread;

[0024] The vertical part of the connecting frame 7 is slidably connected to the support plate 4, and the horizontal part of the connecting frame 7 is fixedly connected to two evenly distributed end heads 8. Each end head 8 is slidably connected to the upper mold body 3 and the lower mold body 2, and a flexible spine body 9 is provided at the left end of each end head 8.

[0025] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The end faces of the two flexible spine bodies 9 are in contact with each other, and each flexible spine body 9 is slidably connected to the upper mold body 3 and the lower mold body 2. Through the setting of the flexible spine body 9, it can be used for subsequent bending pipe forming.

[0026] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 The support plate 4 and the connecting frame 7 are jointly provided with a positioning mechanism 10, and the positioning mechanism 10 includes a positioning hole 101. The upper end of the support plate 4 is provided with a positioning hole 101, and a plurality of positioning holes 101 are provided. The plurality of positioning holes 101 are evenly distributed on the support plate 4. Through the setting of the positioning holes 101, it is convenient to cooperate with the positioning ball 105 for positioning. The horizontal part of the connecting frame 7 is slidably connected with the telescopic rod 102, and the upper end of the telescopic rod 102 is fixedly connected with the connecting disk 103. The outer side of the telescopic rod 102 is provided with a spring 104, one end of the spring 104 is welded to the connecting disk 103, and the other end of the spring 104 is welded to the connecting frame 7, and the lower end of the telescopic rod 102 is fixedly connected with a positioning ball 105, which is slidably connected to the positioning hole 101. Through the action of structures such as the positioning hole 101 and the positioning ball 105, the connecting frame 7 can be limited, and then the position of the flexible spine body 9 can be positioned.

[0027] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6The lower mold body 2 and the screw 6 are jointly provided with a guide mechanism 11, which includes a rotating disk 111. The left end of the screw 6 is fixedly connected to the rotating disk 111, and the right end of the lower mold body 2 is fixedly connected to two symmetrically distributed fixed ears 112. The end face of each fixed ear 112 close to the rotating disk 111 is bonded with an elastic block 113, and the other end of the elastic block 113 is bonded with a guide piece 114. The guide piece 114 is in contact with the rotating disk 111, and the guide piece 114 is arc-shaped as a whole. The guide piece 114 is made of wear-resistant ceramic material. Through the setting of the wear-resistant ceramic material, the guide piece 114 can have a good wear-resistant effect. Through the setting of the guide piece 114, the elastic block 113 and other structures, the rotation of the rotating disk 111 can be limited.

[0028] The specific implementation process of the utility model is as follows: when in use, the upper mold body 3, the lower mold body 2, the flexible spine body 9 and other structures are used in conjunction with each other to complete the injection molding process of the bent pipe, the motor 5 is started to drive the output shaft to rotate, so as to drive the screw 6 to rotate. Under the relationship of the threaded connection, the connecting frame 7 can be driven to slide along the inner wall of the support plate 4 to drive the end head 8 to move, and then drive the flexible spine body 9 to move, so that the flexible spine body 9 is separated from the upper mold body 3 and the lower mold body 2, and the core pulling process is performed on the formed bent pipe;

[0029] During this process, when the connecting frame 7 moves, it can drive the telescopic rod 102 to move, and then drive the positioning ball 105 to move. Under the pressure of the inner wall of the positioning hole 101, the positioning ball 105 can be pushed up, thereby driving the telescopic rod 102 to slide along the inner wall of the horizontal part of the connecting frame 7, and driving the connecting plate 103 to move, and the spring 104 is deformed, and finally the positioning ball 105 is disengaged from the positioning hole 101. Under the action of the force, the positioning ball 105 moves along the surface of the support plate 4. When the positioning ball 105 slides into the next positioning hole 101, the spring 104 recovers its deformation to pull the positioning ball 105 into the positioning hole 101, thereby limiting the connecting frame 7 and then positioning the flexible spine body 9.

[0030] When the motor 5 drives the output shaft to drive the screw 6 to rotate, the rotating disk 111 can be driven to rotate, so that the rotating disk 111 rotates along the surface of the guide piece 114. Under the action of the guide piece 114, the rotating disk 111 can be guided to rotate, thereby avoiding the centrifugal shaking problem of the excessively long screw 6. Under the action of the elastic block 113 and the fixed ear 112, the guide piece 114 can always be in contact with the rotating disk 111 to ensure the guiding effect of the guide piece 114.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tube bending forming spine core pulling die structure, comprising a base (1), characterized in that: A lower mold body (2) is provided at the upper end of the base (1), an upper mold body (3) is provided at the upper end of the lower mold body (2), a support plate (4) is fixedly connected to the right end of the lower mold body (2), a motor (5) is fixedly installed on the right side of the lower end of the support plate (4), an output shaft of the motor (5) is fixedly connected to a screw rod (6), and the outer side of the screw rod (6) is connected to a connecting frame (7) through a thread; The vertical portion of the connecting frame (7) is slidably connected to the support plate (4), and the horizontal portion of the connecting frame (7) is fixedly connected to two evenly distributed end heads (8), each of which is slidably connected to the upper mold body (3) and the lower mold body (2), and a flexible spine body (9) is provided at the left end of each end head (8), a positioning mechanism (10) is provided on the support plate (4) and the connecting frame (7), and a guiding mechanism (11) is provided on the lower mold body (2) and the screw rod (6).

2. A tube bending and forming spine core pulling die structure according to claim 1, characterized in that: The end faces of the two flexible spine bodies (9) are in contact with each other, and each flexible spine body (9) is slidably connected to the upper mold body (3) and the lower mold body (2).

3. A tube bending and forming spine core pulling die structure according to claim 1, characterized in that: The positioning mechanism (10) includes a positioning hole (101), the upper end of the support plate (4) is provided with a positioning hole (101), the horizontal portion of the connecting frame (7) is slidably connected to a telescopic rod (102), the upper end of the telescopic rod (102) is fixedly connected to a connecting plate (103), a spring (104) is provided on the outer side of the telescopic rod (102), one end of the spring (104) is welded to the connecting plate (103), and the other end of the spring (104) is welded to the connecting frame (7), the lower end of the telescopic rod (102) is fixedly connected to a positioning ball (105), and the positioning ball (105) is slidably connected to the positioning hole (101).

4. A tube bending and forming spine core pulling die structure according to claim 3, characterized in that: A plurality of positioning holes (101) are provided, and the plurality of positioning holes (101) are evenly distributed on the support plate (4).

5. The core-pulling die structure for forming a bent tube spine according to claim 1, characterized in that: The guide mechanism (11) includes a rotating disk (111), the left end of the screw rod (6) is fixedly connected to the rotating disk (111), and the right end of the lower mold body (2) is fixedly connected to two symmetrically distributed fixing ears (112), and the end surface of each fixing ear (112) close to the rotating disk (111) is bonded with an elastic block (113), and the other end of the elastic block (113) is bonded with a guide plate (114), and the guide plate (114) is in contact with the rotating disk (111).

6. A tube bending and forming spine core pulling die structure according to claim 5, characterized in that: The guide piece (114) is in an arc shape as a whole, and is made of a wear-resistant ceramic material.

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