Square tube bar extrusion discharging guide device and extrusion discharging system

Abstract

The embodiment of the utility model provides a square tube bar extrusion discharging guiding device and an extrusion discharging system, and relates to the technical field of bar forming, the square tube bar extrusion discharging guiding device is provided with a guiding pad and a guiding groove, one side of the guiding pad is attached to a discharging port of an extrusion die, and the other side of the guiding pad is attached to a discharging port of the extrusion die. The guide groove is formed in the other side of the guide pad, the guide groove is communicated with the discharge port through the guide pad, and bars enter the guide pad and the guide groove through the discharge port after being extruded. The guide pad and the guide groove serve as transition parts after the bars are discharged, adapt to the shapes of the bars after the bars are discharged and are used for bearing the bars, scratching of the bars and bending caused by self weight are reduced, and the qualified rate of the bars is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bar forming, and particularly relates to a square tube bar extrusion discharging guiding device and an extrusion discharging system. Background Art

[0002] In the field of copper alloy extrusion forming, the extrusion of round tube bars is mainly carried out. After extrusion, the round bars directly reach the discharging platform from the discharging port. Compared with round tube bars, after the square bars are extruded and discharged, due to their square characteristics, they are prone to abrasion with the discharging platform. And after discharging, since the temperature of the bars reaches above 500°C, the high-temperature strength of the bars is relatively low, and it is extremely easy for the discharged bars to bend due to their own gravity, thereby affecting the straightness of the products and resulting in a relatively high rejection rate. Summary of the Utility Model

[0003] An embodiment of the utility model provides a square tube bar extrusion discharging guiding device and an extrusion discharging system to solve the technical problem of relatively high rejection rate caused by abrasion and bending during the extrusion discharging of square bars in the related art.

[0004] In a first aspect, an embodiment of the utility model provides a square tube bar extrusion discharging guiding device, including:

[0005] A guiding pad, one side of the guiding pad is attached to the discharging port of the extrusion die;

[0006] A guiding groove, the guiding groove is arranged on the other side of the guiding pad, and the guiding groove is communicated with the discharging port through the guiding pad.

[0007] In some embodiments, the guiding groove is a U-shaped groove.

[0008] In some embodiments, the guiding pad has a square through hole, the square through hole is communicated with the discharging port and the guiding groove, and the cross-sectional edge of the square through hole is parallel to the cross-sectional edge of the discharging port.

[0009] In some embodiments, the cross-section of the square through hole is larger than the cross-section of the discharging port.

[0010] In some embodiments, it further includes: a plurality of conveying rollers, and each conveying roller is arranged on the guiding groove at intervals.

[0011] In some embodiments, the guiding pad and the guiding groove are welded.

[0012] In some embodiments, the front end of the guiding groove has an inclination angle with the discharging port.

[0013] In a second aspect, an extrusion discharging system is provided, including the foregoing square tube bar extrusion discharging guiding device.

[0014] In some embodiments, it further includes: an extrusion die, and the extrusion die includes an extrusion mold, a pad behind the mold, an intermediate pad and a mold pad;

[0015] The square through holes of the extrusion mold, the pad behind the mold, the intermediate pad, the mold pad and the guide pad are communicated.

[0016] In some embodiments, the extrusion die further includes: an intermediate sleeve and a mold sleeve;

[0017] Both the extrusion mold and the pad behind the mold are placed in the intermediate sleeve, and the intermediate sleeve is placed in the mold sleeve.

[0018] The beneficial effects brought by the technical solution provided by the present utility model include:

[0019] The embodiment of the present utility model provides a square tube and bar extrusion discharging guiding device and an extrusion discharging system. The square tube and bar extrusion discharging guiding device is provided with a guide pad and a guide groove. One side of the guide pad is attached to the discharging port of the extrusion die. The guide groove is arranged on the other side of the guide pad. The guide groove is communicated with the discharging port through the guide pad. After the bar is extruded, it enters the guide pad and the guide groove through the discharging port. The guide pad and the guide groove of the present utility model are used as transition components after the bar is discharged, adapt to the shape of the bar after discharging, are used to support the bar, reduce the abrasion of the bar and the bending caused by its own weight, and improve the qualified rate of the bar. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0021] Figure 1 It is the front view of a square tube and bar extrusion discharging guiding device provided by the embodiment of the present utility model;

[0022] Figure 2 It is the top view of a square tube and bar extrusion discharging guiding device provided by the embodiment of the present utility model;

[0023] Figure 3 It is the side view of a square tube and bar extrusion discharging guiding device provided by the embodiment of the present utility model;

[0024] Figure 4 It is a schematic diagram of a square tube and bar extrusion discharging guiding device provided by the embodiment of the present utility model;

[0025] Reference Signs:

[0026] 1. Transfer roller

[0027] 2. Guide pad; 21. Square through-hole

[0028] 3. Guide groove

[0029] 4. Extrusion die; 41. Extrusion die; 42. Pad behind die; 43. Intermediate sleeve; 44. Die sleeve; 45. Intermediate pad; 46. Die pad; 47. Discharge port Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] The embodiment of the present utility model provides a square tube and bar extrusion discharge guiding device, which can solve the technical problem of high rejection rate caused by scratches and bending during the extrusion and discharge of bars in the prior art.

[0032] See Figure 1 As shown, a square tube and bar extrusion discharge guiding device provided by the embodiment of the present utility model is provided with a guide pad 2 and a guide groove 3.

[0033] One side of the guide pad 2 is in contact with and communicated with the discharge port 47 of the extrusion die 4, the guide groove 3 is connected to the other side of the guide pad 2, and the guide groove 3 is communicated with the discharge port 47 through the guide pad 2. The guide pad 2 and the guide groove 3 serve as transition components after the bar is extruded, support the bar, and the guide pad 2 and the guide groove 3 adapt to the shape of the bar after extrusion, reducing scratches on the bar and bending caused by its own weight during the discharge process, and improving the qualification rate.

[0034] The embodiment of the present utility model provides a square tube and bar extrusion discharge guiding device, which is provided with a guide pad and a guide groove. One side of the guide pad is in contact with the discharge port of the extrusion die, the guide groove is arranged on the other side of the guide pad, and the guide groove is communicated with the discharge port through the guide pad. The guide pad and the guide groove of the present utility model support and guide after the bar is extruded from the discharge port, reduce scratches on the bar and bending caused by its own weight during the discharge process, and improve the qualification rate.

[0035] As an optional implementation manner, in an embodiment of the utility model, see Figure 4As shown, the guiding groove 3 is a U-shaped groove. During the process of extruding and discharging the bar material, it is easy to cause bruises or abrasions. In the present utility model, the guiding groove 3 adopts a U-shaped groove. The two side walls of the guiding groove 3 and the bottom of the guiding groove 3 form an opening greater than 90 degrees, which is suitable for square and circular extruded bar materials, reducing the bruises and abrasions of the bar material on the side walls of the guiding groove, reducing the rejection rate, and making the discharging process smoother.

[0036] As an alternative implementation manner, in an embodiment of a utility model, refer to Figure 1 and Figure 3 As shown, the guiding pad 2 is provided with a square through hole 21. One side of the square through hole 21 communicates with the discharging port 47, and the other side of the square through hole 21 communicates with the guiding groove 3. The cross-sectional edge of the square through hole 21 is parallel to the cross-sectional edge of the discharging port 47. When the internal through hole of the guiding pad is not suitable for the shape of the bar material, during the process of extruding and discharging the bar material, when passing through the guiding device, it is easy to cause abrasions with the guiding device. The guiding pad of the present utility model makes the installation and positioning of the guiding groove and the die pad more accurate. The through hole provided in the guiding pad and parallel to the cross-sectional edge of the discharging port can avoid bruises and abrasions when the bar material passes through, reducing the rejection rate.

[0037] As an alternative implementation manner, in an embodiment of a utility model, refer to Figure 1 and Figure 3 As shown, the cross-section of the square through hole 21 is larger than the cross-section of the discharging port 47. The diameter of the circular arc part of the cross-section of the square through hole 21 is larger than the diameter of the corresponding position of the discharging port 47. The bottom of the cross-section of the square through hole 21 is lower than the discharging port 47. After the bar material is just extruded, due to the high temperature of the bar material, reaching above 500 °C, the high-temperature strength of the bar material is low. During the process of extruding and discharging, it is extremely easy for the discharged bar material to bend due to its own gravity, resulting in a reduction in straightness. The diameter of the square through hole is larger than the diameter of the discharging port 47, which is convenient for the bar material to be smoothly extruded from the discharging port 47, improving the efficiency of the guiding device. In this embodiment, the diameter difference between the square through hole 21 and the discharging port 47 is not less than 10 mm. A diameter difference of not less than 10 mm enables the bar material to be smoothly extruded from the discharging port 47 and the square through hole 21. Due to a certain degree of bending generated when the bar material is extruded, when the diameter difference is less than 10 mm, the bar material is not convenient to be smoothly extruded from the discharging port 47. Setting a diameter difference of not less than 10 mm is convenient for the bar material to be smoothly extruded from the discharging port 47 into the guiding pad 2, improving the efficiency of the guiding device.

[0038] As an alternative implementation manner, in an embodiment of a utility model, refer to Figure 1 and Figure 2As shown, a plurality of conveying rollers 1 are provided, each of which is arranged at intervals on the guide groove 3. Each of the conveying rollers 1 causes the material in contact with it to move along the guide groove 3 through synchronous rolling, thereby improving the working efficiency of the guide device.

[0039] As an optional implementation, in one utility model embodiment, the guide pad 2 and the guide groove 3 are welded, and the guide groove 3 is rigidly connected to the guide pad 2 by welding, thereby improving the stability of the guide device.

[0040] As an optional implementation, in a utility model embodiment, see Figure 1 As shown, the front end of the guide groove 3 and the discharge port 47 have an inclination angle, and the angle of the inclination angle is set according to the height difference between the discharge port 47 and the rear end platform of the guide groove 3 to improve the efficiency of the guide device.

[0041] The embodiment of the utility model further provides an extrusion discharging system, comprising the aforementioned square tube and rod extrusion discharging guide device, wherein the square tube and rod extrusion discharging guide device is provided with a guide pad 2 and a guide groove 3.

[0042] One side of the guide pad 2 is in contact with and communicated with the discharge port 47, the guide groove 3 is connected to the other side of the guide pad 2 and the guide groove 3 is communicated with the discharge port 47 through the guide pad 2, the guide pad 2 and the guide groove 3 serve as transition parts after the rod is extruded, supporting the rod, the guide pad 2 and the guide groove 3 adapt to the shape of the rod after extrusion, reduce the abrasion of the rod and the bending caused by its own weight during the discharge process, and improve the qualified rate.

[0043] As an optional implementation, in a utility model embodiment, see Figure 4 As shown, the guide groove 3 is a U-shaped groove. During the extrusion and discharging process of the rod, it is easy to produce bumps or scratches. The guide groove 3 in the utility model adopts a U-shaped groove. The two side walls of the guide groove 3 and the bottom of the guide groove 3 are opened at an angle greater than 90 degrees, which is suitable for square and round extruded rods, reduces the bumps and scratches between the rod and the side walls of the guide groove, reduces the scrap rate, and makes the discharging process smoother.

[0044] As an optional implementation, in a utility model embodiment, see Figure 1 and Figure 3As shown, the guiding pad 2 is provided with a square through-hole 21. One side of the square through-hole 21 communicates with the discharge port 47, and the other side of the square through-hole 21 communicates with the guiding groove 3. The cross-sectional edge of the square through-hole 21 is parallel to the cross-sectional edge of the discharge port 47. When the through-hole inside the guiding pad does not match the shape of the bar, during the process of extruding the bar, when passing through the guiding system, it is easy to cause abrasion with the guiding system. The guiding pad of the present utility model makes the installation and positioning of the guiding groove and the die pad more accurate. The through-hole provided inside the guiding pad and parallel to the cross-sectional edge of the discharge port can avoid bruising and abrasion when the bar passes through, reducing the rejection rate.

[0045] As an optional implementation manner, in an embodiment of a utility model, refer to Figure 1 and Figure 3 As shown, the cross-section of the square through-hole 21 is larger than the cross-section of the discharge port 47. The diameter of the circular arc part of the cross-section of the square through-hole 21 is larger than the diameter of the corresponding position of the discharge port 47. The bottom of the cross-section of the square through-hole 21 is lower than the discharge port 47. After the bar is just extruded, due to the high temperature of the bar, reaching above 500 °C, the high-temperature strength of the bar is low, and it is extremely easy for the extruded bar to bend due to its own gravity during the extrusion process, resulting in a decrease in straightness. The diameter of the square through-hole is larger than the diameter of the discharge port 47, facilitating the smooth extrusion of the bar from the discharge port 47 and improving the efficiency of the guiding device. In this embodiment, the diameter difference between the square through-hole 21 and the discharge port 47 is not less than 10 mm. The diameter difference of not less than 10 mm enables the bar to be smoothly extruded from the discharge port 47 and the square through-hole 21. Due to a certain degree of bending generated when the bar is extruded, when the diameter difference is less than 10 mm, the bar is not easily extruded smoothly from the discharge port 47. Setting a diameter difference of not less than 10 mm facilitates the smooth extrusion of the bar from the discharge port 47 into the guiding pad 2, improving the efficiency of the guiding device.

[0046] As an optional implementation manner, in an embodiment of a utility model, refer to Figure 1 and Figure 2 As shown, a plurality of conveying rollers 1 are further provided. Each conveying roller 1 is spaced on the guiding groove 3. Each conveying roller 1 makes the discharged material in contact with it move along the guiding groove 3 through synchronous rolling, improving the working efficiency of the guiding device.

[0047] As an optional implementation manner, in an embodiment of a utility model, the guiding pad 2 and the guiding groove 3 are welded, and the guiding groove 3 is rigidly connected to the guiding pad 2 by welding, improving the stability of the guiding system and reducing the rejection rate.

[0048] As an optional implementation manner, in an embodiment of a utility model, refer to Figure 1As shown, the front end of the guiding groove 3 is connected to the discharge port 47 through an inclination angle, and the angle of the inclination angle is set according to the height difference between the discharge port 47 and the rear platform of the guiding groove 3. Adjusting the angle of the inclination angle can adapt to different height differences and improve the efficiency of the guiding system.

[0049] As an alternative implementation, in an embodiment of a utility model, refer to Figure 1 As shown, it further includes an extrusion die, and the extrusion die includes an extrusion die 41, a die rear pad 42, an intermediate sleeve 43, a die sleeve 44, an intermediate pad 45, and a die pad 46;

[0050] The extrusion die 41 and the die rear pad 42 are placed in the intermediate sleeve 43, the intermediate sleeve 43 is placed in the die sleeve 44, the square through holes 21 of the extrusion die 41, the die rear pad 42, the intermediate pad 45, the die pad 46, and the guiding pad 2 communicate with each other. The extrusion die 41 is connected to the die rear pad 42 through a connecting pin, the intermediate pad 45 is positioned through a connecting pin, the intermediate sleeve 43 and the intermediate pad 45 are positioned with the die sleeve 44 through a flat key, the die sleeve 44 and the die pad 46 are positioned through a connecting flat key. The extrusion die is firmly connected and has a high extrusion and discharging efficiency.

[0051] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] It should be noted that in the present utility model, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0053] The above are only specific embodiments of the present utility model, enabling those skilled in the art to understand or implement the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features of the present utility model.

Claims

1. A square tube and bar extrusion discharging guide device, characterized in that: include: A guide pad (2), one side of the guide pad (2) being in contact with a discharge port (47) of an extrusion die (4); A guide groove (3), the guide groove (3) being arranged on the other side of the guide pad (2), the guide groove (3) being connected to the discharge port (47) through the guide pad (2); The guide pad (2) has a square through hole (21), the square through hole (21) is connected to the discharge port (47) and the guide groove (3), and the cross-sectional edge of the square through hole (21) is parallel to the cross-sectional edge of the discharge port (47); The cross section of the square through hole (21) is larger than the cross section of the discharge port (47); The front end of the guide groove (3) and the discharge port (47) have an upward inclination angle.

2. A square tube and bar extrusion discharging guide device according to claim 1, characterized in that: The guide groove (3) is a U-shaped groove.

3. The square tube and rod extrusion discharging guide device according to claim 1, characterized in that: Also includes: A plurality of conveying rollers (1), each of the conveying rollers (1) being arranged on the guide groove (3) at intervals.

4. The square tube and rod extrusion discharging guide device according to claim 1, characterized in that: The guide pad (2) and the guide groove (3) are welded.

5. An extrusion discharging system, characterized in that: It comprises a square tube and rod extrusion discharging guide device as described in claim 1.

6. An extrusion discharging system according to claim 5, characterized in that: Also includes: An extrusion die (4), wherein the extrusion die (4) comprises an extrusion die (41), a rear die pad (42), an intermediate pad (45) and a die pad (46); The square through holes (21) of the extrusion die (41), the rear die pad (42), the middle pad (45), the die pad (46) and the guide pad (2) are connected.

7. An extrusion discharging system according to claim 6, characterized in that: The extrusion die (4) further comprises: an intermediate sleeve (43) and a die sleeve (44); The extrusion die (41) and the back-of-die pad (42) are both placed in the middle sleeve (43), and the middle sleeve (43) is placed in the die sleeve (44).

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