Straightening machine

Abstract

The invention provides a straightening machine which comprises a straightening mechanism, a supporting frame and two conveying chains installed on the supporting frame, and the conveying chains are located below the straightening mechanism. A first motor used for driving the conveying chain to rotate discontinuously is arranged on the supporting frame. A plurality of tooth grooves used for installing shaft rod type products are formed in the conveying chain at equal intervals. A discharging device for automatically discharging shaft rod type products is arranged above the head ends of the two conveying chains. The discharging device lowers the shaft rod type products to the two conveying chains, the conveying chains convey the shaft rod type products to the position below the straightening mechanism, and the straightening mechanism presses and straightens the shaft rod type products. The discharging device is arranged at the head end of the conveying chain, shaft rod type products are automatically discharged to the conveying chain, a worker only needs to add the shaft rod type products into the discharging device at set intervals, the shaft rod type products do not need to be manually placed on the conveying chain one by one, the worker can also easily consider multiple straightening machines, and the labor intensity of the worker is reduced. And the labor is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of strip metal straightening machinery, in particular to a straightening machine. Background Art

[0002] The straightening machine is an automatic detection and straightening device designed for the bending deformation of shaft and rod products after heat treatment. It is a high-tech product that integrates mechanical, electrical, hydraulic, pneumatic, and computer measurement, control and analysis. It has excellent technical performance, which is concentrated in the advantages of high measurement accuracy, fast production cycle, and strong workpiece adaptability. It can accurately measure the radial runout of pure circular sections, D-type sections of shaft and rod workpieces, and the pitch circle of gears or splines.

[0003] The existing straightening machines can already automatically transport shaft products through conveyor belts, but they still require manual intervention and are not fully automated. For example, during the operation of the straightening machine, the shaft products cannot be automatically added to the conveyor belt, and the shaft products need to be placed one by one on the tooth grooves of the conveyor belt. Under normal circumstances, one worker can only take care of the operation of two straightening machines at most, which has low work efficiency and requires additional labor costs. Summary of the invention

[0004] The purpose of the present invention is to provide a straightening machine which can solve the problem in the prior art that the straightening machine cannot automatically add shaft rod products to the conveyor belt.

[0005] The objective of the present invention is achieved through the following technical solutions: A straightening machine comprises a straightening mechanism, a support frame and two conveyor chains mounted on the support frame, wherein the conveyor chains are located below the straightening mechanism; a first motor is arranged on the support frame for driving the conveyor chains to rotate intermittently. A plurality of tooth grooves for mounting shaft products are arranged at equal intervals on the conveyor chains. A feeding device for automatically lowering shaft products is arranged above the head ends of the two conveyor chains. The feeding device lowers the shaft products onto the two conveyor chains, and the conveyor chains convey them to the bottom of the straightening mechanism, and the straightening mechanism presses and straightens the shaft products.

[0006] Preferably, the unloading device includes a lifting assembly arranged on a support frame and a box body for storing shaft rod products.

[0007] Preferably, the bottom of the box body is in an inverted triangle shape and is provided with an outlet channel, in which an automatic material unloading component is provided.

[0008] Preferably, the automatic unloading assembly includes a second motor disposed on the outer wall of the outlet channel and a rotating shaft connected to the output end of the second motor. The rotating shaft is disposed in the outlet channel, and two arc grooves are symmetrically provided on the outer wall of the rotating shaft. In a static state, the two arc grooves are respectively oriented upward and downward, and the shaft products fall into the arc grooves under the action of gravity.

[0009] Preferably, the minimum width of the outlet channel is equal to the diameter of the rotating shaft.

[0010] Preferably, the width of the box body is the same as the width of the support frame.

[0011] Preferably, two inner plates having the same size as the side surfaces of the box body and an adjustment component for adjusting the distance between the two inner plates are arranged inside the box body.

[0012] Preferably, the adjustment assembly includes a screw rod and a slide rod disposed inside the box body, and threads in opposite directions are disposed at both ends of the screw rod. One side of the two inner side plates is respectively connected to the two ends of the screw rod by threads, and the other side is slidably mounted on the slide rod; the screw rod is rotatably connected to the inner wall of the box body, and one end of the screw rod extends outside the box body and is provided with a knob.

[0013] Preferably, the lifting assembly includes a threaded barrel, a support frame, and threaded columns arranged on both sides of the bottom of the support frame. The threaded barrel is rotatably connected to the support frame, threads are arranged on the inner wall of the threaded barrel, and the threaded columns are installed in the threaded barrel through the threads.

[0014] Preferably, the support frame is in a rectangular shape and is used to support the box body.

[0015] Preferably, the support frame comprises two guard plates and a plurality of vertical poles arranged outside the guard plates. Two conveyor chains are arranged between the two guard plates.

[0016] Preferably, the top of the guard plate is higher than the highest point of the conveyor chain.

[0017] Preferably, the straightening mechanism includes a piston rod and a pressure head, and the piston rod pushes the pressure head downward to press the shaft rod product.

[0018] Preferably, a support block is disposed on the outer sides of the two guard plates, and the bottom of the threaded barrel is rotatably connected to the support block.

[0019] The present invention automatically lowers shaft rod products onto the conveyor chain by arranging a feeding device at the head end of the conveyor chain. Workers only need to add shaft rod products to the feeding device at regular intervals, and there is no need to manually place the shaft rod products on the conveyor chain one by one. Workers can also easily take care of multiple straightening machines, which saves manpower and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural schematic diagram of a straightening machine of the present invention.

[0021] Figure 2 A top view of the support frame and conveyor chain.

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the lifting component.

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the middle box.

[0024] Figure 5 for Figure 1 A top view of the middle box.

[0025] Figure 6 for Figure 5 Schematic diagram of the structure of the transfer shaft.

[0026] Figure 7 for Figure 3 Schematic diagram of the vertical section of the connection between the middle threaded barrel and the support block.

[0027] The following are the descriptions of the reference numerals: 1: straightening mechanism, 2: support frame, 3: conveyor chain, 4: unloading device, 11: piston rod, 12: pressure head, 21: guard plate, 22: vertical rod, 23: first motor, 31: tooth groove, 41: lifting assembly, 42: box body, 411: threaded cylinder, 412: support frame, 413: threaded column, 421: outlet channel, 422: automatic unloading assembly, 423: internal test version, 424: adjustment assembly, 4221: second motor, 4222: rotating shaft, 42221: arc groove, 4241: screw, 4242: sliding rod, 4243: knob, 211: support block. DETAILED DESCRIPTION

[0028] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0029] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand the advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0030] Embodiment 1

[0031] The present invention automatically lowers the shaft rod products onto the conveyor chain 3 by arranging a feeding device 4 at the head end of the conveyor chain 3. Workers only need to add the shaft rod products to the feeding device 4 at regular intervals, and there is no need to manually place the shaft rod products one by one on the conveyor chain 3. Workers can also easily take care of multiple straightening machines, which saves manpower and improves work efficiency.

[0032] like Figure 1-2 As shown, a straightening machine includes a straightening mechanism 1, a support frame 2, and two conveyor chains 3 installed on the support frame 2, and the conveyor chains 3 are located below the straightening mechanism 1. A first motor 23 for driving the conveyor chain 3 to rotate intermittently is provided on the support frame 2. A plurality of tooth grooves 31 for installing shaft products are equidistantly provided on the conveyor chain 3. A unloading device 4 for automatically lowering shaft products is provided above the head ends of the two conveyor chains 3. The unloading device 4 lowers the shaft products onto the two conveyor chains 3, and the conveyor chains 3 convey them to the bottom of the straightening mechanism 1, and the straightening mechanism 1 presses and straightens the shaft products. The two ends of the shaft products are placed on the two conveyor chains 3, respectively.

[0033] It should be noted that the first motor 23 and the second motor 4221 described below can be individually adjusted to the same driving frequency and start and stop, so that the conveyor chain 3 and the rotating shaft 4222 rotate intermittently, and the first motor 23 and the second motor 4221 can also be controlled to operate synchronously through an external control platform, such as a PLC system.

[0034] Furthermore, the unloading device 4 includes a lifting assembly 41 arranged on the support frame 2 and a box body 42 for storing shaft products.

[0035] like Figure 3-6 As shown, further, the bottom of the box body 42 is in an inverted triangle shape and is provided with an outlet channel 421. An automatic unloading component 422 is provided in the outlet channel 421.

[0036] Furthermore, the automatic unloading assembly 422 includes a second motor 4221 disposed on the outer wall of the outlet channel 421 and a rotating shaft 4222 connected to the output end of the second motor 4221. The rotating shaft 4222 is disposed in the outlet channel 421, and two arc grooves 42221 are symmetrically provided on the outer wall of the rotating shaft 4222. In a static state, the two arc grooves 42221 are respectively oriented upward and downward, and the shaft products fall into the arc grooves 42221 under the action of gravity.

[0037] Furthermore, the minimum width of the outlet channel 421 is equal to the diameter of the rotating shaft 4222 , ensuring that shaft products can just fall into the arc groove 42221 and avoiding a large gap between the outlet channel 421 and the rotating shaft 4222 so that shaft products cannot accurately fall into the arc groove 42221 .

[0038] Furthermore, the width of the box body 42 is the same as the width of the support frame 2 , so that the shaft-like products dropped from the box body 42 can be exactly on the two conveyor chains 3 .

[0039] Furthermore, the box body 42 is provided with two inner side plates 423 of the same size as the side of the box body 42 and an adjustment assembly 424 for adjusting the distance between the two inner side plates 423. The distance between the two inner side plates 423 is adjusted to accommodate shaft products of different lengths, so as to prevent the shaft products from being tilted and piled up in the box body 42, resulting in the shaft products not being able to fall horizontally onto the conveyor chains 3, and not being able to ensure that both ends of the shaft products fall exactly onto the two conveyor chains 3.

[0040] Furthermore, the adjustment assembly 424 includes a screw rod 4241 and a slide rod 4242 disposed inside the box body 42, and the two ends of the screw rod 4241 are provided with threads in opposite directions; one side of the two inner side plates 423 is respectively connected to the two ends of the screw rod 4241 by threads, and the other side is slidably mounted on the slide rod 4242; the screw rod 4241 is rotatably connected to the inner wall of the box body 42, and one end of the screw rod 4241 extends outside the box body 42 and is provided with a knob 4243. By rotating the knob 4243, the two inner side plates 423 move in opposite directions, away from or close to each other, thereby adjusting the distance between the two inner side plates 423.

[0041] Furthermore, the lifting assembly 41 includes a threaded barrel 411, a support frame 412, and threaded columns 413 arranged on both sides of the bottom of the support frame 412. The threaded barrel 411 is rotatably connected to the support frame 2, and the inner wall of the threaded barrel 411 is provided with threads. The threaded columns 413 are installed in the threaded barrel 411 through threads. By adjusting the lifting assembly 41, the outlet channel 421 at the bottom of the box body 42 is made closer to the two conveying chains 3, so that the shaft products fall on the two conveying chains 3 more accurately.

[0042] Furthermore, the support frame 412 is rectangular in shape and is used to support the box body 42 .

[0043] Furthermore, the support frame 2 includes two guard plates 21 and a plurality of vertical poles 22 arranged on the outside of the guard plates 21. The two conveyor chains 3 are arranged between the two guard plates 21. In this embodiment, a plurality of connecting rods are rotatably connected between the two guard plates 21, and each connecting rod is provided with two gears respectively meshing with the two conveyor chains 3. The two conveyor chains 3 are installed in this way, and the first motor 23 is connected to one or more connecting rods through a belt or chain to drive the connecting rods to rotate, thereby driving the two conveyor chains 3 to rotate. The structure of the conveyor chain 3 driven by the motor can be various, and the rotation method and structure of the conveyor chain 3 are all prior art, which will not be repeated here.

[0044] Furthermore, the top of the guard plate 21 is higher than the highest point of the conveyor chain 3 , so as to prevent shaft products from falling off the support frame 2 .

[0045] Furthermore, the straightening mechanism 1 includes a piston rod 11 and a pressure head 12, and the piston rod 11 pushes the pressure head 12 to press the shaft rod product downward.

[0046] Furthermore, a support block 211 is disposed on the outer side of each of the two guard plates 21, and the bottom of the threaded cylinder 411 is rotatably connected to the support block 211, referring to Figure 3 The connection method of the two can refer to Figure 7 , the rotation connection method is not limited to Figure 7 The structure in the figure may also be other structures, and the rotating connection method is a prior art and is known to the public, so it will not be described in detail.

[0047] Working principle: Before the equipment is put into operation, the worker first adjusts the distance between the two inner plates 423 to accommodate the length of the shaft products that need to be straightened, and then rotates the threaded cylinder 411 to adjust the height of the support frame 412 to make the outlet channel 421 closer to the two conveyor chains 3. Before the first motor 23 and the second motor 4221 are started, the worker fills the box body 42 with shaft products, and the shaft products fall into the arc-shaped groove 42221 facing upward under the action of gravity.

[0048] Start the first motor 23 and the second motor 4221. The first motor 23 drives the two conveyor chains 3 to rotate intermittently, and the second motor 4221 also intermittently drives the rotating shaft 4222 to rotate 180°. The shaft products located directly above and facing the arc groove 42221 are rotated to the bottom and fall onto the two conveyor chains 3 due to gravity.

[0049] When the shaft-type products are conveyed by the conveyor chain 3 to the bottom of the straightening mechanism 1, the piston rod 11 drives the pressure head 12 to press the shaft-type products downward to straighten the bent shaft-type products. It should be noted that in order to detect that the shaft-type products are conveyed by the conveyor chain 3 to the bottom of the straightening mechanism 1, a sensor can be provided on the straightening mechanism 1. This method of detecting objects is a prior art and will not be described in detail here. After the shaft-type products are straightened, the conveyor chain 3 continues to convey the next shaft-type product, and the shaft-type products that have been straightened will be intermittently conveyed to the end of the conveyor chain 3 and loaded with boxes or other containers.

[0050] In the description of the present invention, it is necessary to understand that the terms "middle", "length", "up", "down", "front", "back", "vertical", "horizontal", "inside", "outside", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0051] In the present invention, unless otherwise clearly specified and limited, the first feature "on" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. "Multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The above is only for explaining the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention without creative work should be included in the protection scope of the present invention.

Claims

1. A straightening machine, comprising a straightening mechanism (1), a support frame (2), and two conveyor chains (3) mounted on the support frame (2), wherein the conveyor chains (3) are located below the straightening mechanism (1); a first motor (23) is provided on the support frame (2) for driving the conveyor chains (3) to rotate intermittently; characterized in that: A plurality of tooth grooves (31) for mounting shaft products are arranged at equal intervals on the conveyor chains (3); a material unloading device (4) for automatically unloading shaft products is arranged above the head ends of the two conveyor chains (3); the material unloading device (4) unloads the shaft products onto the two conveyor chains (3), and the conveyor chains (3) convey them to the bottom of the straightening mechanism (1), and the straightening mechanism (1) presses and straightens the shaft products.

2. The straightening machine according to claim 1, characterized in that: The unloading device (4) comprises a lifting assembly (41) arranged on a support frame (2) and a box body (42) for storing shaft products.

3. The straightening machine according to claim 2, characterized in that: The bottom of the box body (42) is in an inverted triangle shape and is provided with an outlet channel (421); an automatic material discharge component (422) is provided in the outlet channel (421).

4. The straightening machine according to claim 3, characterized in that: The automatic unloading component (422) comprises a second motor (4221) arranged on the outer wall of the outlet channel (421) and a rotating shaft (4222) connected to the output end of the second motor (4221); the rotating shaft (4222) is arranged in the outlet channel (421), and two arc-shaped grooves (42221) are symmetrically formed on the outer wall of the rotating shaft (4222); in a static state, the two arc-shaped grooves (42221) are respectively oriented upward and downward, and shaft products fall into the arc-shaped grooves (42221) under the action of gravity.

5. The straightening machine according to claim 4, characterized in that: The minimum width of the outlet channel (421) is equal to the diameter of the rotating shaft (4222).

6. The straightening machine according to claim 2, characterized in that: The width of the box body (42) is the same as the width of the support frame (2).

7. The straightening machine according to claim 2, characterized in that: Two inner plates (423) having the same size as the side surfaces of the box body (42) and an adjustment component (424) for adjusting the distance between the two inner plates (423) are arranged inside the box body (42).

8. The straightening machine according to claim 7, characterized in that: The adjustment assembly (424) comprises a screw rod (4241) and a slide rod (4242) which are arranged inside the box body (42); two ends of the screw rod (4241) are provided with threads in opposite directions; one side of the two inner side plates (423) is respectively connected to the two ends of the screw rod (4241) by threads, and the other side is slidably mounted on the slide rod (4242); the screw rod (4241) is rotatably connected to the inner wall of the box body (42); one end of the screw rod (4241) extends outside the box body (42) and is provided with a knob (4243).

9. The straightening machine according to claim 2, characterized in that: The lifting assembly (41) comprises a threaded barrel (411), a support frame (412), and threaded columns (413) arranged on both sides of the bottom of the support frame (412). The threaded barrel (411) is rotatably connected to the support frame (2). The inner wall of the threaded barrel (411) is provided with threads, and the threaded columns (413) are installed in the threaded barrel (411) through the threads.

10. The straightening machine according to claim 9, characterized in that: The supporting frame (412) is rectangular in shape and is used to support the box body (42).

11. The straightening machine according to claim 9, characterized in that: The support frame (2) comprises two guard plates (21) and a plurality of vertical poles (22) arranged outside the guard plates (21); and two conveyor chains (3) are arranged between the two guard plates (21).

12. The straightening machine according to claim 11, characterized in that: The top of the guard plate (21) is higher than the highest point of the conveyor chain (3).

13. The straightening machine according to claim 1, characterized in that: The straightening mechanism (1) comprises a piston rod (11) and a pressure head (12), and the piston rod (11) pushes the pressure head (12) to press the shaft rod product downward.

14. The straightening machine according to claim 11, characterized in that: A support block (211) is disposed on the outer sides of the two guard plates (21), and the bottom of the threaded cylinder (411) is rotatably connected to the support block (211).

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