Short ruler removing device for short and small factory building
By setting up a short ruler removal device in a short factory building, and using a short ruler removal electromagnet suspended on the transverse conveying platform for magnetic removal, the problem of difficult to efficiently remove medium and short ruler rods in small and medium rod production lines is solved, and the effect of reducing workers' labor intensity and avoiding production line extension is achieved.
Patent Information
- Application Number
- CN202420748982.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-11
AI Technical Summary
In the production line of small and medium rods, due to single weight fluctuations in raw material blanks, blank cross-section errors and intermediate shear errors, the finished rods are mixed with uncertain rulers or short rulers. The existing technology is difficult to efficiently remove, and the setting of short ruler removal devices in short factory buildings is limited.
A short ruler removal device is designed for a short factory building. By hanging the short ruler removal electromagnet at a distance on the transverse conveying rig, the energized electromagnets magnetically absorb and overcome the gravity of the short ruler rod, causing them to leave the conveying rig and be fixed, achieving self-magnetic removal.
It effectively reduces the labor intensity of workers, avoids lengthening of the production line, and does not need to renovate existing equipment or civil engineering foundations, ensures the normal operation of the workshop, and improves the efficiency of removing short ruler bars.
Smart Images
Figure CN222724523U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel rolling machinery and equipment, in particular to a short-length rejecting device used in short and small workshops. Background Art
[0002] The small and medium-sized bar products produced by the hot-rolled small and medium-sized bar workshop are usually delivered in fixed lengths. However, in actual production, due to the fluctuations in the unit weight of the upstream raw material billets, the cross-sectional errors of the billets and the intermediate shearing errors, small and medium-sized bar products will produce a certain number of irregular or short-length bars. Moreover, when the diameter of the finished bar is between 50 and 100 mm, due to the combined influence of the billet length and the matching of the multiple lengths of the cooling bed, smaller-sized small and medium-sized bar products are more likely to be mixed with short-length bars.
[0003] At present, the early construction of small and medium-sized rod production lines are not equipped with short-length rejection devices, or the length of the small and medium-sized rod production lines is limited due to the limited length of the factory building, so short-length rejection devices are not installed. Therefore, short-length rods need to be rejected manually, and the labor intensity of workers is high.
[0004] Some also install the short-length rejecting device at the end of the small and medium-sized rod production line, but it can only reject the short-length rods mixed in the tail batch of a row of materials conveyed by the conveyor roller. If there are individual short-length rods mixed in the middle batch, they still need to be rejected manually. Therefore, the overall rejection effect is limited, and the length of the production line is lengthened, which is not conducive to flexible layout, and is especially difficult to use in short and small factories. Utility Model Content
[0005] To this end, in order to solve the above-mentioned problem, the utility model provides a short-length rejecting device for short and small factories. The short-length rejecting electromagnets are suspended above the transverse conveying platform at intervals to achieve self-magnetic rejection of short-length bars mixed in the finished bars, thereby reducing the labor intensity of workers and avoiding lengthening the original production line. There is no need to modify the existing equipment or civil engineering foundation, and the original normal operation of the workshop is not affected.
[0006] To achieve the above purpose, the technical solution provided by the utility model is as follows:
[0007] The utility model provides a short-length rejecting device for a short and small factory building. In the conveying direction of the bar rolled products, a conveying roller for collecting and conveying the finished bar and a transverse conveying platform connected to the conveying roller are sequentially arranged. The utility model also includes a short-length rejecting electromagnet for magnetically rejecting the short-length bar mixed in the finished bar; the short-length rejecting electromagnet is suspended above the transverse conveying platform at intervals, the arrangement direction of the short-length rejecting electromagnet is parallel to the length direction of the short-length bar, and the center distance between two adjacent short-length rejecting electromagnets corresponds to the length of the short-length bar; the energized short-length rejecting electromagnets are magnetically attracted to the two ends of the short-length bar transferred from the conveying roller to the transverse conveying platform, and overcome the gravity of the short-length bar itself, so that the short-length bar leaves the transverse conveying platform, and is then attracted and fixed by the short-length rejecting electromagnet, so as to reject the short-length bar mixed in the finished bar.
[0008] Furthermore, the length of the short-length rod is 3 to 6 m, and the length of the short-length rod is greater than the center distance between two adjacent short-length rejection electromagnets.
[0009] Furthermore, the distance between the magnetic surface of the short-rule rejection electromagnet and the surface of the transverse conveying stand is 500 to 700 mm.
[0010] Furthermore, the magnetic force formed when the short-length rejecting electromagnet is energized is greater than the self-gravity of a single short-length bar; or the magnetic force formed when the short-length rejecting electromagnet is energized is greater than the self-gravity of multiple short-length bars, and the magnetic force formed when the short-length rejecting electromagnet is energized is less than the self-gravity of a single finished bar of a fixed size.
[0011] Furthermore, plant columns for support are respectively arranged on both sides of the transverse conveying platform, a crane beam is arranged between the plant columns, and the short-length rejecting electromagnet is suspended on the crane beam.
[0012] Furthermore, a bundling mechanism for bundling finished bars or short-length bars is provided at one end of the transverse conveying platform away from the conveying roller.
[0013] The technical solution provided by the utility model has the following beneficial effects:
[0014] By suspending the short-length rejecting electromagnets at intervals above the transverse conveying platform, the energized short-length rejecting electromagnets are magnetically attracted to the two ends of the short-length bars transferred from the conveying roller to the transverse conveying platform, and overcome the gravity of the short-length bars themselves, so that the short-length bars leave the transverse conveying platform, and are then attracted and fixed by the short-length rejecting electromagnets, so as to achieve self-magnetic rejection of short-length bars mixed in the finished bars, thereby reducing the labor intensity of workers, avoiding lengthening of the original production line, and eliminating the need to modify existing equipment or civil engineering foundations, and not affecting the original normal operation of the workshop. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 Shown is a schematic diagram of a short-length rejecting device for a short and small factory building in an embodiment;
[0016] Figure 2 Shown Figure 1 Sectional view of AA in the middle;
[0017] Figure 3 Shown Figure 1 Cross-sectional view of the middle BB;
[0018] Figure 4 for Figure 3 Enlarged schematic diagram of area C in the middle. DETAILED DESCRIPTION
[0019] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0020] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.
[0021] Reference Figures 1 to 3 As shown, this embodiment provides a short-length rejection device for a short and small factory building (hereinafter referred to as the short-length rejection device), in which a conveying roller 1 for collecting and conveying finished bars 6 and a transverse conveying platform 2 connected to the conveying roller 1 are sequentially arranged in the conveying direction of the bar rolled product, and also includes a short-length rejection electromagnet 7 for magnetically rejecting short-length bars 9 mixed in the finished bars 6. The short-length rejection electromagnets 7 are suspended above the transverse conveying platform 2 at intervals, and the arrangement direction of the short-length rejection electromagnets 7 is parallel to the length direction of the short-length bars 9, and the center distance between two adjacent short-length rejection electromagnets 7 corresponds to the length of the short-length bars 9. The energized short-length rejection electromagnets 7 are magnetically attracted to the two ends of the short-length bars 9 transferred from the conveying roller 1 to the transverse conveying platform 2, and overcome the gravity of the short-length bars 9 themselves, so that the short-length bars 9 leave the transverse conveying platform 2, and are then attracted and fixed by the short-length rejection electromagnets 7 to reject the short-length bars 9 mixed in the finished bars 6.
[0022] In this embodiment, Figure 2As shown, the number of short-length rejecting electromagnets 7 is 3, and plant columns 8 for support are respectively arranged on both sides of the transverse conveying platform 2, and a crane beam 5 is arranged between the plant columns 8. The short-length rejecting electromagnet 7 is suspended on the crane beam 5 to make full use of the idle space above the transverse conveying platform 2, thereby avoiding lengthening the original production line. At the same time, there is no need to modify the existing equipment or civil engineering foundation, and it does not affect the original normal operation of the workshop.
[0023] Specifically, the length of the short-length bar 9 is 3 m, and the center distance between two adjacent short-length rejecting electromagnets 7 is 3.5 m, so as to ensure that the two adjacent short-length rejecting electromagnets 7 magnetically fix the two ends of the same short-length bar 9 respectively.
[0024] Moreover, the length of the finished bar 6 of fixed-length specifications is 6 to 12 meters, and the mass of a single finished bar 6 of fixed-length specifications is much greater than the mass of a single short-length bar 9. Therefore, the corresponding gravity of the two is also quite different. Then, the short-length rejection electromagnet 7 provides a certain magnetic force to cooperate so as to select the short-length bar 9 with smaller mass to complete the rejection operation.
[0025] The conveying direction of the conveying roller 1 is perpendicular to the conveying direction of the transverse conveying platform 2 to form an L-shaped arrangement to further shorten the length of the production line to ensure that the short-length rejecting device is suitable for a short factory building.
[0026] The finished rods 6 mixed with short-length rods 9 are first conveyed to the conveyor roller 1, and then conveyed to the transverse conveying platform 2 through the conveyor roller 1. At the same time, the short-length rejection electromagnet 7 is energized to form a magnetic field above the transverse conveying platform 2, so as to form a magnetic attraction on the short-length rods 9 conveyed on the transverse conveying platform 2, thereby achieving the purpose of sucking the short-length rods 9 away from the transverse conveying platform 2 and being sucked and fixed by the short-length rejection electromagnet 7 to remove the short-length rods 9 mixed in the finished rods 6. At the same time, the finished rods 6 of fixed length without short-length rods 9 continue to be conveyed to the subsequent process by the transverse conveying platform 2.
[0027] By suspending the short-length rejecting electromagnets 7 above the transverse conveying platform 2 at intervals, the energized short-length rejecting electromagnets 7 are magnetically attracted to the two ends of the short-length bars 9 transferred from the conveying roller 1 to the transverse conveying platform 2, and overcome the gravity of the short-length bars 9 themselves, so that the short-length bars 9 leave the transverse conveying platform 2, and are then attracted and fixed by the short-length rejecting electromagnets 7, so as to realize self-magnetic rejection of the short-length bars 9 mixed in the finished bars 6, so as to reduce the labor intensity of the workers, avoid lengthening the length of the original production line, do not need to modify the existing equipment or civil engineering foundation, and do not affect the original normal operation of the workshop.
[0028] In another preferred embodiment, Figure 4As shown, the magnetic surface of the short-length rejecting electromagnet 7 is 500 to 700 mm away from the surface of the transverse conveying platform 2 to ensure that the magnetic force between the short-length rejecting electromagnet 7 and the short-length bar 9 is large enough, and at the same time to ensure that the finished bar 6 of a fixed length specification will not be magnetically attracted to the short-length rejecting electromagnet 7.
[0029] In specific implementation, the magnetic force formed by the short-length rejecting electromagnet 7 being energized is greater than the self-weight of multiple short-length bars 9, and the magnetic force formed by the short-length rejecting electromagnet 7 being energized is less than the self-weight of a single finished bar 6 of a fixed length.
[0030] If the length of the short-length bar 9 is less than 3m, the upstream production line will shear or saw the short-length bar 9 less than 3m into waste by cold shearing or grinding wheel sawing, and send it into the waste hopper for scrapping.
[0031] If the length of the short-length bar 9 is more than 3 m, additional shearing or sawing will affect the original production rhythm. Therefore, the short-length bar 9 is sent to the transverse conveying platform 2 through the conveying roller 1.
[0032] When short-length bars 9 appear in large quantities in rows, the operator needs to increase the current of the short-length rejection electromagnet 7 to ensure that the magnetic force of the short-length rejection electromagnet 7 is sufficient to attract all the short-length bars 9 in rows, and the magnetic force of the short-length rejection electromagnet 7 is less than the self-weight of a single fixed-length finished bar 6.
[0033] When individual or a small amount of short-length bars 9 are mixed in the finished bars 6 of fixed length, the operator reduces the current value of the short-length rejection electromagnet 7 in advance to ensure that the short-length rejection electromagnet 7 only attracts the short-length bars 9 to its surface, while minimizing the impact on the normal transportation of the finished bars 6 of fixed length.
[0034] Of course, the magnetic force generated by the short-length rejecting electromagnet 7 being energized is also smaller than the self-weight of a single short-length bar 9 .
[0035] In another preferred embodiment, Figure 1 As shown, a bundling mechanism 3 for bundling finished bars 6 or short-length bars 9 is provided at one end of the transverse conveying platform 2 facing away from the conveying roller 1 .
[0036] When the finished bar materials 6 of fixed length and specification are transported to the bundling station of the transverse transport platform 2 , the bundling mechanism 3 will bundle and hoist the finished bar materials 6 of fixed length and specification.
[0037] When there are enough short-length bars 9 magnetically attracted to the short-length rejection electromagnet 7, the operator will reduce the current on the short-length rejection electromagnet 7 to reduce the corresponding magnetic force during the production interval, and let the short-length bars 9 fall back onto the transverse conveying platform 2, and then the transverse conveying platform 2 will convey the short-length bars 9 to the bundling station, and the bundling mechanism 3 will bundle and lift the short-length bars 9 at this time.
[0038] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.
Claims
1. A short-length rejecting device for a short factory building, wherein a conveying roller for collecting and conveying finished bars and a transverse conveying platform connected to the conveying roller are sequentially arranged in the conveying direction of the bar rolled product, and the characteristics are: It also includes a short-length rejecting electromagnet for magnetically rejecting short-length bars mixed in the finished bars; The short-length rejecting electromagnets are suspended above the transverse conveying platform at intervals, the arrangement direction of the short-length rejecting electromagnets is parallel to the length direction of the short-length bars, and the center distance between two adjacent short-length rejecting electromagnets corresponds to the length of the short-length bars; The energized short-length rejecting electromagnets magnetically attract the two ends of the short-length bars transferred from the conveying roller to the transverse conveying platform, and overcome the gravity of the short-length bars themselves, so that the short-length bars leave the transverse conveying platform, and are then attracted and fixed by the short-length rejecting electromagnets to reject the short-length bars mixed in the finished bars.
2. The short-length rejecting device for a short and small factory building according to claim 1 is characterized in that: The length of the short-length bar is 3 to 6 m, and the length of the short-length bar is greater than the center distance between two adjacent short-length rejecting electromagnets.
3. The short-length rejecting device for a short and small factory building according to claim 1 is characterized in that: The distance between the magnetic surface of the short-rule rejection electromagnet and the surface of the transverse conveying stand is 500 to 700 mm.
4. The short-length rejecting device for a short and small factory building according to any one of claims 1 to 3, characterized in that: The magnetic force formed by the short-length rejection electromagnet when it is energized is greater than the self-gravity of a single short-length bar; or the magnetic force formed by the short-length rejection electromagnet when it is energized is greater than the self-gravity of multiple short-length bars, and the magnetic force formed by the short-length rejection electromagnet when it is energized is less than the self-gravity of a single finished bar of a fixed length.
5. The short-length rejecting device for a short and small factory building according to any one of claims 1 to 3, characterized in that: Factory columns for support are respectively arranged on both sides of the transverse conveying platform, a crane beam is arranged between the factory columns, and the short-length rejecting electromagnet is suspended on the crane beam.
6. The short-length rejecting device for a short and small factory building according to any one of claims 1 to 3, characterized in that: A bundling mechanism for bundling finished bars or short-length bars is arranged at one end of the transverse conveying platform away from the conveying roller.