Semi-automatic U-shaped elbow forming machine

Abstract

The utility model discloses a semi-automatic U-shaped elbow forming machine which comprises an iron stand, a pedal is arranged at the bottom of the iron stand, a linear bearing is arranged at the top of the iron stand, two opposite elbow dies which can be spliced detachably penetrate through the linear bearing, and the pedal is connected with one of the elbow dies through a transmission mechanism. And the pedal is pressed downwards to drive the two elbow molds to approach relatively. According to the utility model, semi-automatic butt-joint press-fit of the elbow mold is realized through simple pedaling action, a molten hose in a high-heat state is shaped, and compared with pure manual pressing, the efficiency and the precision are higher; compared with pure automatic equipment, the operability is higher; the equipment can be further improved into full-automatic equipment, and the operation flexibility is better; the die can be detached and replaced to meet different production requirements; and later maintenance is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of glass tube bending, and more specifically, to a semi-automatic U-shaped elbow forming machine. Background Art

[0002] Glass tubes can be divided into four types: standard glass tubes, chemical glass tubes, neutral glass tubes and high borosilicate glass tubes. They are resistant to acid, alkali, water and corrosion, and have good thermal stability and electrical properties. They are indispensable instruments in product research and development and chemical production. The quality of glass tubes has an important impact on subsequent production tests. Glass tubes are divided into straight glass tubes, glass tube elbows and special-shaped glass tubes. For the latter two, the glass tubes need to be heated at high temperature before bending.

[0003] At present, the bending of glass tubes mostly relies on manual operation. Workers need to press down and bend the heated tubes manually, which is extremely inefficient. Moreover, the sizes of the bent tubes produced in the same batch vary and the precision is poor. In addition, the bending operations that can be performed are also limited to glass tubes of a certain size and model, which is very restrictive. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a semi-automatic U-shaped elbow forming machine to solve one or more of the above-mentioned problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A semi-automatic U-shaped elbow forming machine comprises an iron frame, a pedal is provided at the bottom of the iron frame, a linear bearing is provided at the top of the iron frame, two opposite and assembleable elbow molds are detachably penetrated on the linear bearing, the pedal is connected to one of the elbow molds through a transmission mechanism, and the pedal is pressed down to drive the two elbow molds to be relatively close.

[0007] Furthermore, the pedal is rotatably connected to the support leg of the iron frame through a connecting frame, and the rotation direction of the pedal is aligned with the movement direction of the elbow mold on the linear bearing.

[0008] Furthermore, the transmission mechanism includes at least two loop heads, a fixed pulley and a steel wire rope, the fixed pulley is arranged on the side of the iron frame connected to the connecting frame, one of the loop heads is arranged on the pedal or the connecting frame, and the other loop head is arranged on the back side of the elbow mold away from the fixed pulley, and the steel wire rope passes through the loop head at the lower end, the fixed pulley and the loop head at the upper end in sequence.

[0009] Furthermore, a slider with a support plate is provided on the back of the elbow mold, and the slider is slidably arranged on the linear bearing, and the support plate is vertically connected to and supports the elbow mold to stand upright.

[0010] Furthermore, an auxiliary bearing is fixedly inserted into the bottom of one of the sliders, and a through hole is opened at the bottom of the other slider, and the auxiliary bearing is aligned and inserted into the through hole, and the auxiliary bearing is parallel to the linear bearing.

[0011] Furthermore, a support frame is provided on the side of the iron frame away from the fixed pulley, and a spring is provided on the support frame, and the spring is connected to the back side of the elbow mold away from the fixed pulley.

[0012] Furthermore, the support frame is a tripod, the interior of the hypotenuse section of the support frame is hollow, and the spring is inserted into the hypotenuse section of the support frame.

[0013] Furthermore, the number of the linear bearings is at least two, and the number of the sliding blocks is at least two groups.

[0014] In summary, the utility model has the following beneficial effects: semi-automatic docking and pressing of the elbow mold is realized through a simple foot-operated action, and the molten hose under high heat is shaped, which is more efficient and accurate than pure manual pressing; it is more operable than pure automated equipment; it can also be further improved into fully automated equipment with better operational flexibility; the mold can be disassembled and replaced to meet different production needs; and later maintenance is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of an implementation method provided by the utility model;

[0016] Figure 2 A schematic diagram of a usage state of an implementation mode provided by the utility model.

[0017] In the figure: 10, iron frame; 11, linear bearing; 12, support leg; 13, support frame; 14, spring; 20, pedal; 21, connecting frame; 30, transmission mechanism; 31, ring head; 32, fixed pulley; 33, wire rope; 40, elbow mold; 41, support plate; 42, slider; 43, auxiliary bearing; 50, hand-held blowtorch. DETAILED DESCRIPTION

[0018] Example:

[0019] The following is combined with Figure 1-2 The utility model is described in further detail.

[0020] Semi-automatic U-shaped elbow forming machine, such as Figure 1As shown, the main body is an iron frame 10 with a support leg 12, and a rotatable connecting frame 21 is provided on the outer side of the left rear support leg 12 of the iron frame 10, and the connection frame 21 is arranged at the bottom of the iron frame 10, and a pedal 20 is fixed at the right end of the connection frame 21. The pedal 20 moves synchronously with the connection frame 21, and rotates synchronously to press down or lift up.

[0021] The top of the iron frame 10 is also provided with two horizontally aligned linear bearings 11, on which two opposite elbow molds 40 are inserted, and the elbow molds 40 are docked with the linear bearings 11 through detachable components. The elbow molds 40 can slide on the linear bearings 11, and the two elbow molds 40 are slid and assembled to form an elbow groove, which is used for subsequent shaping of the pipe fittings in the heated state. The back of the two elbow molds 40, that is, the non-opposite surface, is provided with two groups of sliders 42 with support plates 41. There are four sliders 42 in the two groups, which are correspondingly arranged on the two linear bearings 11. First, the slider 42 can slide on the corresponding linear bearings 11. Secondly, the support plate 41 on the slider 42 is in a vertical state, docking with the back of the elbow mold 40, playing the role of docking and correction. After docking, the slider 42, the support plate 41 and the elbow mold 40 move synchronously, and the support plate 41 supports the elbow mold 40 to prevent the elbow mold 40 from being skewed, thereby causing the elbow pipe fitting processing error to become larger. In addition, in order to further regulate the sliding of the elbow mold 40, two auxiliary bearings 43 are set, which are respectively set at the bottom of the two left-right aligned sliders 42 on the corresponding sides. The bottom of the right slider 42 is fixed with an auxiliary bearing 43, and the bottom of the left slider 42 is provided with aligned through holes, and the auxiliary bearing 43 and the linear bearing 11 are aligned and parallel. The auxiliary bearing 43 can also be installed on the left slider 42, and the right slider 42 is provided with through holes. The elbow mold 40 slides in the left and right directions, so the most labor-saving design should be that the pedal 20 also rotates in the vertical plane, and the swinging direction of the pedal 20 corresponds best to the movement direction of the elbow mold 40 on the linear bearing 11.

[0022] The pedal 20 or the connecting frame 21 is connected to the slider 42 on the back of one of the elbow molds 40 through the transmission mechanism 30, so that the downward pressure of the pedal 20 can drive the two elbow molds 40 to be relatively close. The transmission mechanism 30 includes two loop heads 31, a fixed pulley 32 and a wire rope 33. The fixed pulley 32 is arranged on the side of the iron frame 10 where the connecting frame 21 is arranged, that is, the middle section of the left rear support leg 12 of the iron frame 10. One of the loop heads 31 is arranged on the right side of the pedal 20 or the connecting frame 21, and the other loop head 31 is arranged on the slider 42 on the back of the right elbow mold 40. The wire rope 33 passes through the lowermost loop head 31, the fixed pulley 32 and the uppermost loop head 31 in sequence.

[0023] A support frame 13 is provided on the side of the right rear leg of the iron frame 10. The support frame 13 is a right-angled tripod, and the right-angle side is installed on the leg. The inside of the hypotenuse section is hollow and one end of the spring 14 is inserted. The other end of the spring 14 is folded and connected to the slider 42 on the back of the right elbow mold 40. When the pedal 20 is pressed down, the elbow mold 40 slides against each other, and the spring 14 is stretched; when the pedal 20 is released, the elbow mold 40 is automatically contracted by the spring 14 and driven to reset and separate, and at the same time drives the pedal 20 to reset.

[0024] When using Figure 2 As shown, the straight pipe is clamped and fixed by other devices, and the bending area is continuously heated by a hand-held blowtorch 50 until it softens. The softened pipe is moved to the groove of the elbow mold 40 on the fixed side. The operator presses the pedal 20, and the elbow template at the other end is continuously approached until the two elbow templates are butted and fitted, and the pipe is automatically pressed into a specified curvature size. The pipe will not break during the whole process, and the state is maintained for a period of time until the pipe is out of the softened state. The pedal 20 is released, and the elbow template at the movable end automatically resets and leaves under the pull of the spring 14, and the manufactured elbow pipe is taken out. If it is necessary to process pipes of other shapes and sizes, just replace the mold, and the working principle is similar. If the connection object or connection position of the transmission component is replaced according to the situation, that is, the movable end is replaced or the fulcrum is adjusted, the overall working principle remains unchanged.

[0025] It should be noted that this specific embodiment is merely an explanation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art can make non-creative modifications to the present embodiment as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A semi-automatic U-shaped elbow forming machine, comprising an iron frame (10), characterized in that: A pedal (20) is provided at the bottom of the iron frame (10), and a linear bearing (11) is provided at the top of the iron frame (10). Two opposite and assembleable elbow molds (40) are detachably inserted on the linear bearing (11). The pedal (20) is connected to one of the elbow molds (40) through a transmission mechanism (30). The pedal (20) is pressed downward to drive the two elbow molds (40) to move relatively close.

2. The semi-automatic U-shaped elbow forming machine according to claim 1, characterized in that: The pedal (20) is rotatably connected to the support leg (12) of the iron frame (10) via a connecting frame (21), and the rotation direction of the pedal (20) is aligned with the movement direction of the elbow mold (40) on the linear bearing (11).

3. The semi-automatic U-shaped elbow forming machine according to claim 2, characterized in that: The transmission mechanism (30) comprises at least two loop heads (31), a fixed pulley (32) and a steel wire rope (33); the fixed pulley (32) is arranged on a side of the iron frame (10) connected to the connecting frame (21); one of the loop heads (31) is arranged on the pedal (20) or the connecting frame (21); the other loop head (31) is arranged on the back side of the elbow mold (40) away from the fixed pulley (32); the steel wire rope (33) passes through the loop head (31) at the lower end, the fixed pulley (32) and the loop head (31) at the upper end in sequence.

4. The semi-automatic U-shaped elbow forming machine according to claim 3, characterized in that: A slider (42) with a support plate (41) is provided on the back of the elbow mold (40). The slider (42) is slidably inserted into the linear bearing (11). The support plate (41) vertically docks and supports the elbow mold (40) to stand upright.

5. The semi-automatic U-shaped elbow forming machine according to claim 4, characterized in that: An auxiliary bearing (43) is fixedly inserted into the bottom of one of the sliders (42), and a through hole is opened at the bottom of the other slider (42). The auxiliary bearing (43) is aligned and inserted into the through hole, and the auxiliary bearing (43) is parallel to the linear bearing (11).

6. The semi-automatic U-shaped elbow forming machine according to claim 3, characterized in that: A support frame (13) is provided on the side of the iron frame platform (10) away from the fixed pulley (32), and a spring (14) is provided on the support frame (13). The spring (14) is connected to the back side of the elbow mold (40) away from the fixed pulley (32).

7. The semi-automatic U-shaped elbow forming machine according to claim 6, characterized in that: The support frame (13) is a tripod, the interior of the oblique side section of the support frame (13) is hollow, and the spring (14) is inserted into the oblique side section of the support frame (13).

8. The semi-automatic U-shaped elbow forming machine according to claim 4, characterized in that: The number of the linear bearings (11) is at least two, and the number of the sliding blocks (42) is at least two groups.

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