Radius elbow forming die

Abstract

The utility model relates to the technical field of radius elbow forming dies, and discloses a radius elbow forming die which comprises a rack, a lower die, a hydraulic rod and an upper die, the lower die is assembled at the bottom of the inner side of the rack, the hydraulic rod is assembled at the top of the inner side of the rack, the upper die is assembled at the bottom of the hydraulic rod, the outer portion of the upper die is connected with a cross arm, and the cross arm is connected with the rack. Stock bins are connected to the two sides of the interior of the rack correspondingly, discharging grooves are formed in the bottoms of the stock bins, feeding mechanisms are connected to the two sides of the interior of the rack correspondingly, each feeding mechanism comprises a short cylinder, a trapezoidal block is slidably connected to the top of each short cylinder, and a first spring is connected between each trapezoidal block and the corresponding short cylinder. According to the radius elbow forming die, metal columns do not need to be frequently compensated for a device and a metal pipe, so that the elbow machining speed is increased again, the upper die returns to drive the cross arm to rub with the stock bin, the stock bin vibrates, and therefore the situation that the metal columns cannot be normally discharged in the stock bin is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to radius elbow forming die technical field, concretely is radius elbow forming die. BACKGROUND

[0002] Radius elbow, according to its curvature radius, is mainly divided into long radius elbow and short radius elbow two, and is widely used in sewage treatment, chemical industry, heat, pharmacy, aerospace, electric power, papermaking and other industries;

[0003] The radius elbow in the prior art can be formed by hot pushing, stamping and cold and hot bending, wherein the stamping is mainly to extrude the copper pipe by a stamping head, and a metal column is inserted into the inner part of the light pipe before the metal pipe is stamped to avoid the two ends of the metal pipe being bent, and the mold is placed in the inside of the stamping machine for processing after the metal column is inserted first, thereby delaying the processing speed and reducing the forming speed of the elbow. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a radius elbow forming die to solve the technical problem that the metal pipe needs to be inserted into the metal column before being stamped, to avoid the two ends of the metal pipe being bent, and the mold is placed in the inside of the stamping machine for processing after the metal column is inserted first, thereby delaying the processing speed and reducing the forming speed of the elbow.

[0006] (II) technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a radius elbow forming die, comprising: a rack, a lower die, a hydraulic rod and an upper die, the lower die is assembled to the inner bottom of the rack, the hydraulic rod is assembled to the inner top of the rack, the upper die is assembled to the bottom of the hydraulic rod, the outside of the upper die is connected with a cross arm, the inside of the rack is connected with a stock bin on both sides, a discharge chute is formed in the bottom of the stock bin, a feeding mechanism is connected with the inside of the rack on both sides, the feeding mechanism comprises a short cylinder, a trapezoidal block is slidably connected to the top of the short cylinder, a first spring is connected between the trapezoidal block and the short cylinder, a cross connecting arm is connected to the outside of the short cylinder, a connecting rod is connected to the top of the cross connecting arm through a hinge, and the other end of the connecting rod is connected to a hollow column through a hinge, a T-shaped arm is slidably connected to the top of the hollow column, a sliding block is connected to the outside of the hollow column, a slotted block is slidably connected to the outside of the sliding block, the slotted block is connected with the rack, the sliding block and the bottom of the T-shaped arm are both connected with a second spring, and the second spring is connected with the slotted block and the hollow column respectively.

[0008] Preferably, the frame has transverse grooves on both sides, and a guide block is slidably connected inside the transverse groove. The guide block is connected to the short cylinder, and the transverse groove and the guide block can guide the short cylinder to move linearly.

[0009] Preferably, the bottom of the lower mold is equipped with an electric ejector pin, the output end of which is inserted into the interior of the lower mold. The electric ejector pin can eject the bent part inside the lower mold and discharge the material. The electric ejector pin is an ejection device in existing processing molds.

[0010] Preferably, vertical grooves are provided on both sides of the outer side of the hopper, and the interior of the vertical grooves is connected to the horizontal arm through a slider. The vertical grooves and the sliders can guide the horizontal arm to move in a straight line.

[0011] Preferably, the discharge chute is connected to the lower mold, and a rubber sleeve is embedded inside the discharge chute. The discharge chute can discharge the metal column inside the hopper into the metal tube inside the lower mold, and the rubber sleeve prevents the discharge chute from being damaged by friction with the trapezoidal block.

[0012] Preferably, the discharge trough has a trapezoidal opening, and the height of the end of the discharge trough near the lower mold is 20mm, while the height of the end of the discharge trough away from the lower mold is 15mm. The design of the discharge trough being higher on one side and lower on the other side avoids the metal column inside the hopper being discharged through the outlet at the end of the hopper away from the lower mold when the discharge trough returns to its original position.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a radius elbow forming mold, which has the following beneficial effects:

[0015] This radius elbow forming die features an added feeding mechanism that automatically feeds metal pillars into the metal tube during the elbow stamping process. This simplifies the preparation work before elbow stamping and significantly increases the elbow forming speed. At the same time, the hopper can store a large number of metal pillars, eliminating the need for frequent replenishment of metal pillars to the device and metal tube, thereby further increasing the elbow processing speed. Additionally, the upper die returns to its original position, causing friction between the horizontal arm and the hopper, which generates vibration in the hopper and prevents the metal pillars from failing to exit properly. Attached Figure Description

[0016] Figure 1 This is a front view of the present utility model;

[0017] Figure 2 This is a front view of the frame of this utility model;

[0018] Figure 3 This is a front view of the hopper of this utility model;

[0019] Figure 4 This is a partial sectional view of the hopper of this utility model;

[0020] Figure 5 This is a partial sectional view of the feeding mechanism of this utility model.

[0021] In the diagram: 1. Frame; 11. Horizontal groove; 12. Guide block; 2. Lower mold; 21. Electric ejector pin; 3. Hydraulic rod; 4. Upper mold; 41. Horizontal arm; 5. Material bin; 51. Vertical groove; 52. Discharge groove; 6. Feeding mechanism; 61. Short cylinder; 62. Trapezoidal block; 63. First spring; 64. Horizontal connecting arm; 65. Connecting rod; 66. Hollow column; 67. T-shaped arm; 68. Slotted block; 69. Sliding block; 610. Second spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a technical solution, please refer to [link / reference]. Figure 1 and Figure 2 The radius bend forming die includes: frame 1, lower die 2, hydraulic rod 3 and upper die 4. The frame 1, lower die 2, hydraulic rod 3 and upper die 4 are common stamping machines in the prior art. The frame 1 is used to support the lower die 2 and hydraulic rod 3. The hydraulic rod 3 is used to drive the upper die 4. The lower die 2 is assembled on the inner bottom of the frame 1.

[0024] The hydraulic rod 3 is mounted on the top inner side of the frame 1, the upper mold 4 is mounted on the bottom of the hydraulic rod 3, the upper mold 4 is connected to the outside of the horizontal arm 41, and the inner sides of the frame 1 are connected to the hopper 5. The bottom of the hopper 5 is provided with a discharge chute 52, and the interior of the vertical chute 51 can store metal columns.

[0025] Please see Figure 3 and Figure 4 The internal sides of the frame 1 are connected to the feeding mechanism 6. The feeding mechanism 6 includes a short cylinder 61. A trapezoidal block 62 is slidably connected to the top of the short cylinder 61. A first spring 63 is connected between the trapezoidal block 62 and the short cylinder 61. A cross arm 64 is connected to the outside of the short cylinder 61. A connecting rod 65 is connected to the top of the cross arm 64 through a hinge. The other end of the connecting rod 65 is connected to a hollow column 66 through a hinge.

[0026] A T-shaped arm 67 is slidably connected to the top of the hollow column 66, a sliding block 69 is connected to the outside of the hollow column 66, a slotted block 68 is slidably connected to the outside of the sliding block 69, the slotted block 68 is connected to the frame 1, and a second spring 610 is connected to the bottom of both the sliding block 69 and the T-shaped arm 67.

[0027] The second spring 610 is connected to the slotted block 68 and the hollow column 66 respectively. The short cylinder 61 can support the trapezoidal block 62. The trapezoidal design of the trapezoidal block 62 can prevent the trapezoidal block 62 from driving the metal column to move when returning to its original position. The cross arm 64 can make the connecting rod 65 drive the short cylinder 61 to move.

[0028] The hollow column 66 can guide the T-shaped arm 67. At the same time, the hollow column 66 is inserted into the inside of the frame 1 and can slide up and down on the inner bottom of the frame 1. The T-shaped arm 67 can retract into the inside of the hollow column 66. The slotted block 68 and the sliding block 69 can guide the hollow column 66 to move linearly. The second spring 610 can drive the hollow column 66 and the T-shaped arm 67 to return to their original positions after the movement is completed.

[0029] Please see Figure 5 The machine frame 1 has horizontal grooves 11 on both sides inside. A guide block 12 is slidably connected inside the horizontal groove 11. The guide block 12 is connected to the short cylinder 61. The horizontal groove 11 and the guide block 12 can guide the short cylinder 61 to move linearly. The bottom of the lower mold 2 is equipped with an electric ejector pin 21. The output end of the electric ejector pin 21 is inserted into the lower mold 2.

[0030] The electric ejector pin 21 can eject the material from the bent part inside the lower mold 2. The electric ejector pin 21 is an ejection device in the existing processing mold. Vertical grooves 51 are provided on both sides of the outer side of the material bin 5. The interior of the vertical groove 51 is connected to the horizontal arm 41 through a slider. The vertical groove 51, together with the slider, can guide the horizontal arm 41 to move linearly. The discharge groove 52 is connected to the lower mold 2, and a rubber sleeve is embedded inside the discharge groove 52.

[0031] The discharge chute 52 can discharge the metal column inside the hopper 5 into the metal tube inside the lower mold 2. The rubber sleeve prevents the discharge chute 52 from rubbing against the trapezoidal block 62 and causing damage. The discharge chute 52 has a trapezoidal opening, and the height of the end of the discharge chute 52 near the lower mold 2 is 20mm, and the height of the end of the discharge chute 52 away from the lower mold 2 is 15mm. The design of the discharge chute 52 with one side higher and the other side lower prevents the metal column inside the hopper 5 from being discharged through the outlet of the end of the hopper 5 away from the lower mold 2 when the discharge chute 52 returns to its original position.

[0032] This scheme first places the metal tube into the lower mold 2, then activates the hydraulic rod 3 to drive the upper mold 4 to descend. The upper mold 4 presses the T-arm 67 through the horizontal arm 41, and then drives the hollow column 66 to descend through the second spring 610. The hollow column 66 drives the horizontal connecting arm 64 to move through the connecting rod 65, thereby pushing the short cylinder 61 and the trapezoidal block 62 from the bottom of the hopper 5, pushing the metal column inside the hopper 5 into the lower mold 2, thus supporting the metal tube. When the upper mold 4 continues to descend, as the hollow column 66 and the sliding block 69 move to the bottom of the slotted block 68, the test T-arm 67 descends inside the hollow column 66 and will no longer drive the trapezoidal block 62 to move. At this time, the upper mold 4 stamps the metal tube inside the lower mold 2. At the same time, the upper mold 4 returns to its original position through the hydraulic rod 3, and the feeding mechanism 6 also returns to its original position. The electric ejector pin 21 drives the elbow formed inside the lower mold 2 to discharge the material.

[0033] When the elbow is being stamped, the added feeding mechanism 6 automatically feeds the metal column into the metal tube, which simplifies the preparation work before the elbow is stamped and greatly improves the speed of elbow forming. At the same time, the hopper 5 can store a large number of metal columns, so there is no need to frequently replenish the metal columns to the device and the metal tube, thereby further improving the elbow processing speed. In addition, the return of the upper mold 4 drives the horizontal arm 41 to rub against the hopper 5, causing the hopper 5 to vibrate, thereby preventing the metal column from being unable to be discharged normally inside the hopper 5.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Radius elbow forming mold, including: The machine consists of a frame (1), a lower mold (2), a hydraulic rod (3), and an upper mold (4). The lower mold (2) is mounted on the inner bottom of the frame (1), the hydraulic rod (3) is mounted on the inner top of the frame (1), and the upper mold (4) is mounted on the bottom of the hydraulic rod (3). The upper mold (4) is externally connected to a cross arm (41). Both sides of the frame (1) are connected to hoppers (5), with a discharge chute (52) at the bottom of each hopper. Both sides of the frame (1) are connected to a feeding mechanism (6). The feeding mechanism (6) includes a short cylinder (61), with a trapezoidal block (62) slidably connected to the top of the short cylinder (61). The trapezoidal block (62) and the short cylinder (61) are connected... A first spring (63) is connected to the short cylinder (61). A cross arm (64) is connected to the outside of the short cylinder (61). A connecting rod (65) is connected to the top of the cross arm (64) by a hinge. A hollow column (66) is connected to the other end of the connecting rod (65) by a hinge. A T-shaped arm (67) is slidably connected to the top of the hollow column (66). A sliding block (69) is connected to the outside of the hollow column (66). A slotted block (68) is slidably connected to the outside of the sliding block (69). The slotted block (68) is connected to the frame (1). A second spring (610) is connected to the bottom of both the sliding block (69) and the T-shaped arm (67). The second spring (610) is connected to the slotted block (68) and the hollow column (66) respectively.

2. The radius elbow forming mold according to claim 1, characterized in that: The frame (1) has transverse grooves (11) on both sides inside. A guide block (12) is slidably connected inside the transverse groove (11), and the guide block (12) is connected to the short cylinder (61).

3. The radius elbow forming mold according to claim 1, characterized in that: The bottom of the lower mold (2) is equipped with an electric ejector pin (21), and the output end of the electric ejector pin (21) is inserted into the interior of the lower mold (2).

4. The radius elbow forming mold according to claim 1, characterized in that: Vertical grooves (51) are provided on both sides of the outer side of the hopper (5), and the interior of the vertical grooves (51) is connected to the horizontal arm (41) by a slider.

5. The radius elbow forming mold according to claim 1, characterized in that: The discharge trough (52) is connected to the lower mold (2), and a rubber sleeve is embedded inside the discharge trough (52).

6. The radius elbow forming mold according to claim 1, characterized in that: The discharge trough (52) is a trapezoidal opening, and the height of the end of the discharge trough (52) near the lower mold (2) is 20mm, and the height of the end of the discharge trough (52) away from the lower mold (2) is 15mm.

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