CN216334997U - A bar production line - Google Patents

Abstract

The utility model provides a bar production line. The bar production line comprises a chain conveyor (3) and a rotating device (5) arranged in sequence, and a guide vertical plate (301) is arranged at the outlet of the chain conveyor (3). ) and a stopper device (10), the stopper device (10) includes a stopper arm (102), and the stopper arm (102) can stop the bar (11) leaving the chain conveyor (3) from continuing to move forward. A guide channel (12) for guiding the falling of the bar (11) can be formed between the material arm (102) and the material guide vertical plate (301), and the falling bar (11) can enter the rotating device from the lower end of the guide channel (12). (5) in the receiving area (502). The bar production line can effectively prevent the random steel situation when the bars are collected in bundles, improve the quality of the products and reduce the labor intensity.

Description

A bar production line

technical field

The utility model relates to the technical field of iron and steel production, in particular to a bar production line.

Background technique

Bar is an indispensable material in civil engineering projects such as houses, bridges and roads. With the continuous expansion of urbanization construction, a large amount of investment in infrastructure, and the vigorous development of the real estate industry, the market demand for bars is becoming stronger and stronger. Its delivery status has also become more stringent.

In existing bar production lines, sizing rods are transported downstream for baling, baling and weighing for collection. For example, the roller table accepts the fixed-length bars, and the steel transfer device transfers the rows of bars from the roller table to the multi-segment chain conveyor. The bars travel along the first material flow direction on the chain conveyor, and the chain The set position of the conveyor is usually arranged with a counter device. After passing through the counter device, the set number of bars will continue to be conveyed downstream by the chain conveyor. With the conveying of the chain conveyor, the flat bar will drop directly to its downstream and wait for it. On the receiving arm of the swivel device for receiving materials, after a bundle of materials is received, the slewing device starts, and through its revolving motion, the bundled bars are placed on the baling roller table, and then baled by the baler. The bundled bars continue to be conveyed downstream by the roller table, and the bars travel in the direction of the second material flow. The lifting chain conveyor and the traversing chain conveyor of the finished product collection platform transfer the bundles of bars from the roller table to the finished product collection platform. During this process, the weighing device weighs the bundles.

The upstream incoming material received by the chain conveyor itself will be skewed, coupled with the inevitable speed difference during the movement of each group of conveyor chains, when the bar is transported to the blanking point, the head and tail are skewed. The situation is more prominent. In this way, during the falling process of the bar, there will be tail flicking, crossover, and entanglement. The direct bundling quality effect is poor, which affects the product quality, and manual intervention increases the labor intensity.

Utility model content

In order to solve the problem of random steel caused by the deflection of the nod and tail of the bar during blanking, the utility model provides a bar production line, which can effectively prevent the random steel (flick, cross, etc.) when the bars are collected in bundles. winding, etc.), which improves the quality of the product and reduces the labor intensity.

The technical scheme adopted by the utility model to solve its technical problems is:

A bar production line, comprising a chain conveyor and a rotating device arranged in sequence, the exit part of the chain conveyor is provided with a material guide vertical plate and a material stopper, the material stopper includes a mounting bracket and a material stopper arm, and the material stopper arm can block The bar leaving the chain conveyor continues to move forward, a guide channel for guiding the falling of the bar can be formed between the stopper arm and the guide vertical plate, and the falling bar can enter the receiving area of the rotary device from the lower end of the guiding channel .

The stopper arm is a strip-shaped curved structure, and the stopper device contains multiple stopper arms, and the multiple stopper arms are arranged in the same direction as the multiple chain conveyors.

The stopper arm includes a connecting section, a curved section and a guiding section which are connected sequentially from top to bottom, and the material guide vertical plate includes a horizontal section and an upright section that are connected up and down, and the guiding section and the upright section can form a guiding channel.

The bar production line includes a plurality of chain conveyors, the stopper arms are in one-to-one correspondence with the chain conveyors, and the connecting section of the stopper arms is located above the horizontal section of the guide vertical plate.

The lower end of the guide channel is located in the material receiving area of the rotary device, the lower part of the guide channel matches the diameter of the bar, and the width of the guide channel gradually decreases in the direction from top to bottom.

The entrance of the guide channel is located at the upper part of the guide channel, the outlet of the guide channel is located at the lower part of the guide channel, the stopper arm can be rotated relative to the mounting bracket, and the width of the guide channel can be adjusted.

The mounting bracket contains uprights and beams, the beam is located above the chain conveyor, and the stopper arm is connected to the beam through a connecting assembly.

The connecting assembly includes a connecting plate and a bracket plate. The connecting plate is fixed on the beam, two parallel bracket plates are connected and fixed with the connecting plate, and the retaining arm is located between the two bracket plates. There are three bracket plates and the retaining arm. In the above pin holes, the material stopper arm is connected with two bracket plates through two pins, and the distance between the material guide vertical plate and the material stopper arm can be adjusted.

The material of the stopper arm is a flexible material, the stopper arm is in a suspended state, one side of the stopper arm faces the chain conveyor, the other side of the stopper arm faces the rotary device, and the lower end of the stopper arm is provided with a counterweight, or The other side of the stopper arm is externally connected with an elastic reset component.

The beneficial effects of the utility model are: the added material blocking device has a simple structure, is easy to operate, and has strong flexibility. Through the stopper device, the bar falling from the chain conveyor can only fall from the set guide channel, which greatly reduces the occurrence of random steel phenomenon such as tail flicking, crossing, winding and so on during the falling process of the bar. Improves the quality of bundled bars and improves delivery quality.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

FIG. 1 is a schematic top view of the bar production line according to the present invention.

FIG. 2 is a schematic cross-sectional view along the direction A-A in FIG. 1 .

FIG. 3 is a schematic diagram of the direction B in FIG. 2 .

FIG. 4 is an enlarged schematic view of the stopper device in FIG. 2 .

Figure 5 is a schematic front view of the connection assembly.

Figure 6 is a schematic left side view of the connection assembly.

Figure 7 is a schematic view of the stop arm.

Fig. 8 is a schematic diagram of the stopper device at the first opening degree.

FIG. 9 is a schematic diagram of the stopper device at the second opening degree.

Fig. 10 is a schematic diagram of the stopper device at the third opening degree.

Fig. 11 is a schematic diagram when the material of the stopper arm is a flexible material and the guide channel is closed.

Fig. 12 is a schematic diagram when the material of the stopper arm is a flexible material and the guide channel is opened.

1. Roller table; 2. Steel moving device; 3. Chain conveyor; 4. Counter device; 5. Rotary device; 6. Baling roller table; 7. Baler; Heavy device; 10. Blocking device; 11. Bar; 12. Guide channel;

101, mounting bracket; 102, material stop arm; 103, connecting assembly; 104, elastic reset component;

301. Material guide vertical plate;

501. Material receiving arm; 502, Material receiving area;

1011, column; 1012, beam;

1021, connecting segment; 1022, bending segment; 1023, guiding segment;

1031, connecting plate; 1032, bracket plate; 1033, pin hole; 1034, pin; 1035, positioning pin hole; 3011, horizontal section; 3012, upright section.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

A bar production line, comprising a chain conveyor 3 and a rotating device 5 arranged in sequence, the outlet of the chain conveyor 3 is provided with a material guide vertical plate 301 and a material stopper 10, and the material stopper 10 includes a mounting bracket 101 and a material stopper The arm 102, the stopper arm 102 can stop the bar 11 leaving the chain conveyor 3 from continuing to move forward, the stopper arm 102 and the guide vertical plate 301 can form a guide channel 12 for guiding the falling of the bar 11, and the falling bar 11 The material receiving area 502 of the rotary device 5 can be entered from the lower end of the guide channel 12 , as shown in FIGS. 1 to 4 .

The bar production line also includes a roller table 1, a steel moving device 2, a counter device 4, a baling roller table 6, a baler 7, a finished product collection platform 8 and a weighing device 9, which can be understood as the utility model of the utility model. The novel point is that a material stopper 10 is added to the existing bar production line. The material stopper arm 102 of the material stopper 10 and the material guide vertical plate 301 of the chain conveyor 3 can form a guide channel 12 for guiding the falling of the bar material 11. The falling bar 11 can enter the material receiving area 502 of the rotary device 5 from the lower end of the guide channel 12, which greatly reduces the occurrence of random steel phenomena such as tail flicking, crossing, winding and so on during the falling process of the bar, thereby improving the production efficiency. The quality of the bundled bars improves the delivery quality.

In this embodiment, the material of the stopper arm 102 can be a rigid material (including solid metal materials, such as steel or copper), the stopper arm 102 is a strip-shaped curved structure, and the stopper device 10 includes a plurality of stopper arms 102, The arrangement direction of the stopper arms 102 is the same as that of the chain conveyor 3 . That is, the stopper device 10 includes a plurality of stopper arms 102 , the multiple stopper arms 102 are arranged at intervals along the left-right direction, and the multiple chain conveyors 3 are arranged at intervals along the left-right direction, as shown in FIG. 1 . Alternatively, the stopper arm 102 may be an elongated plate-like structure, and the cross-section of the elongated plate-like structure is the same as that of the stopper arm 102 shown in FIG. 4 , that is, only the stopper device 10 contains one stopper arm 102 .

Preferably, the stopper device 10 includes a plurality of stopper arms 102, the stopper arms 102 include a connecting segment 1021, a curved segment 1022 and a guide segment 1023 connected in sequence from top to bottom, and the guide vertical plate 301 includes a horizontal segment 3011 connected up and down and the upright section 3012 (the outlet of the chain conveyor 3 is provided with a material guide upright 301 in the prior art), the guiding section 1023 and the upright section 3012 form the guiding channel 12 .

In this embodiment, the bar production line includes a plurality of chain conveyors 3 and a plurality of rotating devices 5, the number of the stopper arms 102, the number of the chain conveyors 3 and the number of the rotating devices 5 are the same, and the number of stopper arms 102 There is a one-to-one correspondence with the chain conveyor 3 , and a one-to-one correspondence between the stopper arms 102 and the rotary device 5 . The connecting segment 1021 of the stopper arm 102 is located above the horizontal segment 3011 of the guide vertical plate 301 , the guide segment 1023 of the stopper arm 102 is located in front of the upright segment 3012 of the guide plate 301 , the guide segment 1023 and the upright segment 3012 There is a gap between.

In this embodiment, the lower end of the guide section 1023 is higher than the lower end of the upright section 3012 , the lower end of the guide channel 12 is located in the material receiving area 502 of the material receiving arm 501 of the swivel device 5 , and the lower part of the guide channel 12 is connected with the rod 11 . The diameters are matched, in order to reduce the number of the following adjustment pin holes, simplify the structure, and reduce the adjustment workload, the width of one guide channel 12 can be suitable for bars of several specifications. The width of the guide channel 12 should be larger than the diameter of the maximum specification bar to pass through, otherwise, there may be a situation of jamming. At the same time, the width of the guide channel 12 should also be less than 2 times the diameter of the minimum specification bar to avoid the channel width being too large. , and affect the guiding effect. Of course, this width can also be adjusted according to the actual situation of the site, in order to achieve the best material guiding effect, so as to avoid the above-mentioned random steel phenomenon such as tail flicking, crossing and winding. In addition, the width of the guide channel 12 gradually decreases in the direction from top to bottom. The width is the dimension in the left-right direction in FIG. 4 .

In this embodiment, the mounting bracket 101 includes a column 1011 and a beam 1012, the column 1011 is located at both ends of the beam 1012, the beam 1012 is located above the chain conveyor 3, and the retaining arm 102 is connected to the beam 1012 through the connecting assembly 103. Generally, the fixed lengths of the finished bar products are 6 meters, 9 meters, and 12 meters, so the stopper device 10 must be able to meet the smooth passage of the finished products with a maximum length of 12 meters. Except for the support of the columns 1011 on both sides, there is no other Support, the entire 12-meter range is the passing area, and at the same time, there is an appropriate margin on the outside of the steel wire in the passing area.

Considering the problems of processing and transportation at the same time, the beam 1012 is made of a split structure. The beam 1012 includes a plurality of component beam segments arranged along the length direction. The end of each component beam segment is provided with an end plate. The end plates are connected by bolts. At the same time, reinforcing ribs are designed on the beam 1012 to ensure that it has sufficient rigidity within a length range of more than 12 meters to support various components installed on it.

In this embodiment, the stopper arms 102 are connected to the connecting assembly 103 in one-to-one correspondence. The connecting assembly 103 includes a connecting plate 1031 and a bracket plate 1032, the connecting plate 1031 is fixed on the beam 1012, and two parallel bracket plates 1032 and the connecting plate 1031 is connected and fixed, the stopper arm 102 is located between the two bracket plates 1032, and the stopper arm 102 is connected with the bracket plate 1032 by bolts or pins, as shown in FIG. 4 to FIG. 7 .

A space is left between the two bracket plates 1032 for installing the stopper arm 102 . The stopper arm 102 is made of a steel plate with a predetermined thickness. After the stopper arm 102 is installed between the two bracket plates 1032, there are appropriate gaps on both sides of the stopper arm 102, and the stopper arm 102 can flexibly rotate without shaking. The stopper arm 102 is a strip-shaped curved structure, which forms a transition of the mouth. The support plate 1032 and the blocking arm 102 are provided with a plurality of pin holes. For example, the support board 1032 and the blocking arm 102 are provided with more than three pin holes 1033 .

In the present embodiment, the inlet of the guide channel 12 is located at the upper part of the guide channel 12, and the outlet of the guide channel 12 is located at the lower part of the guide channel 12. It can be rotated relative to the mounting bracket 101 , and the distance between the guide section 1023 of the stopper arm 102 and the upright section 3012 of the material guide vertical plate 301 can be adjusted, that is, the width of the guide channel 12 can be adjusted.

The bracket plate 1032 can be provided with a number of pin holes 1033, one pin hole 1033 is a positioning pin hole 1035, the other pin holes 1033 are adjusting pin holes, the material blocking arm 102 can be provided with a number of pin holes 1033, one pin hole 1033 is a positioning pin hole The pin holes 1035 and the other pin holes 1033 are adjustment pin holes. The stopper arm 102 is connected to the two bracket plates 1032 through two pins 1034. The stopper arm 102 can rotate around the axis of the positioning pin hole 1035. The axis of the positioning pin hole 1035 is parallel to the left and right direction, the distance between the material guide vertical plate 301 and the material blocking arm 102 can be adjusted, and the number and position of the adjustment pin hole can be determined according to actual needs. As shown in Figures 4 to 7, adjusting the number of pin holes in the figures is not the only solution. Alternatively, the beam 1012 can also be changed to a shaft type part, and the opening degree (distance) between the material guide vertical plate 301 and the material stopper arm 102 can be automatically adjusted by means of hydraulic or electric driving.

For example, one pin passes through the positioning pin hole 1035 of the bracket plate 1032 and the positioning pin hole 1035 of the stopper arm 102, and the other pin passes through the corresponding or non-corresponding adjustment pin holes on the support plate 1032 and the stopper arm 102, thereby adjusting The distance between the guide section 1023 of the stopper arm 102 and the upright section 3012 of the guide vertical plate 301 is to adjust the width of the lower part of the guide channel 12. For example, the width of the lower part of the guide channel 12 can be the first opening degree x1 (eg 8), the second opening degree x2 (as shown in FIG. 9), the third opening degree x3 (as shown in FIG. 10), or the fourth opening degree (not shown in the figure).

Specifically, when another pin passes through the No. 1 adjusting pin hole on the bracket plate 1032 and the No. 1 adjusting pin hole on the stopper arm 102 , the width of the lower part of the guide channel 12 can be the first opening degree x1 (as shown in FIG. 8). When another pin passes through the No. 2 adjusting pin hole on the bracket plate 1032 and the No. 2 adjusting pin hole on the stopper arm 102 , the width of the lower part of the guide channel 12 can be the second opening degree x2 (as shown in FIG. 9 ) ). When another pin passes through the No. 3 adjusting pin hole on the bracket plate 1032 and the No. 3 adjusting pin hole on the stopper arm 102, the width of the lower part of the guide channel 12 can be the third opening degree x3 (as shown in FIG. 10 ) ). When another pin passes through the No. 4 adjusting pin hole on the bracket plate 1032 and the No. 4 adjusting pin hole on the stopper arm 102 , the width of the lower part of the guide channel 12 can be the fourth opening degree.

Alternatively, another pin can also pass through the No. 1 adjusting pin hole on the bracket plate 1032 and the No. 2 adjusting pin hole, No. 3 adjusting pin hole or No. 4 adjusting pin hole on the stopper arm 102; the other pin can also pass through Through the No. 2 adjusting pin hole on the bracket plate 1032 and the No. 1 adjusting pin hole, No. 3 adjusting pin hole or No. 4 adjusting pin hole on the stopper arm 102; another pin can also pass through the No. 3 adjusting pin hole on the bracket plate 1032 Adjusting pin hole and No. 1 adjusting pin hole, No. 2 adjusting pin hole or No. 4 adjusting pin hole on the stopper arm 102; another pin can also pass through the No. 4 adjusting pin hole on the bracket plate 1032 and the stopper arm 102 Adjustment pin hole No. 1, Adjustment pin hole No. 2, or Adjustment pin hole No. 3 on the By selecting different arrangements and combinations of the adjustment pin holes on the bracket plate 1032 and the retaining arm 102, the width of the lower part of the guide channel 12 can be more open. For example, the bracket plate 1032 and the retaining arm 102 are provided with 4 By adjusting the pin holes, the width of the lower part of the guide channel 12 can obtain at most 16 different opening degrees, so that it can be suitable for rods 11 with more specifications and diameters. The specific positions of the adjustment pin holes on the bracket plate 1032 and the stopper arm 102 can be obtained through a limited number of experiments or computer software simulations.

By adjusting the distance between the material guide vertical plate 301 and the material blocking arm 102, the distance between the material guiding vertical plate 301 and the material blocking arm 102 is slightly larger than the diameter of the rod 11, and there is an appropriate gap, so that the rod 11 can be guaranteed. During the falling process, the axis of the bar 11 is always close to parallel to the left and right directions, which greatly reduces the occurrence of random steel phenomena such as tail flicking, crossing, winding and so on during the falling process of the bar, thereby improving the bundled bar. The quality of the material improves the quality of delivery.

In addition, the material of the stopper arm 102 can also be a flexible material (such as rubber), for example, the stopper arm 102 can be a rubber strip or a rubber plate, the stopper arm 102 is in a suspended state, the upper end of the stopper arm 102 and the beam 1012 directly or The indirect connection is fixed. In the front and rear direction, the stopper arm 102 and the material guide vertical plate 301 can overlap. As shown in FIG. 11, the chain conveyor 3 transports the bar 11 forward. After the bar 11 hits the stopper arm 102, the stopper The material arm 102 and the material guide vertical plate 301 form a guide channel 12 for guiding the falling of the bar 11, the bar 11 enters the guide channel 12, and the falling bar 11 enters the material receiving area 502 of the rotary device 5 from the lower end of the guide channel 12, As shown in Figure 12. That is, when the bar 11 enters between the stopper arm 102 and the material guide vertical plate 301, the guide channel 12 is formed (it can also be understood that the guide channel 12 is opened), and when the bar 11 does not enter the stopper arm 102 and the material guide vertical plate 301 The guide channel 12 is not formed therebetween (it can also be understood that the guide channel 12 is closed).

When a flexible material is selected for the stopper arm 102, the blocking effect of the stopper arm 102 on the bar 11 may sometimes be unsatisfactory. A counterweight can be fixedly connected to the lower end of the stopper arm 102, and the weight of the counterweight can be determined according to a limited number of experiments. get. Alternatively, an elastic reset member 104 can also be installed on the stopper arm 102. For example, one side of the stopper arm 102 faces the chain conveyor 3, and the other side of the stopper arm 102 faces the turning device 5. The elastic return member 104 is located at the stopper arm 102. Outside the other side of the material arm 102 , the elastic restoring member 104 can provide restoring force to the material stopper arm 102 . The counterweight can also be located outside the other side of the stop arm 102 .

The following introduces a method for preventing the bar material from falling out of random steel. The method for preventing the bar material from falling out of random steel adopts the above-mentioned bar production line. The method for preventing the bar material from falling out of random steel includes the following steps:

The bars 11 travel in the first flow direction C on the chain conveyor 3 . A stopper device 10 is provided at the exit of the chain conveyor 3. The stopper device 10 includes a mounting bracket 101 and a stopper arm 102. The stopper arm 102 blocks the bar 11 leaving the chain conveyor 3 from continuing to move forward. A guide channel 12 for guiding the falling of the bar 11 can be formed between the 102 and the guide vertical plate 301 , and the falling bar 11 enters the material receiving area 502 of the rotating device 5 from the lower end of the guide channel 12 . After a bundle of materials is received, the rotary device 5 is activated, and through its rotary motion, the bundled bars are placed on the baling roller table 6, and then bundled by the baler 7. The bundled bars continue to be conveyed downstream by the roller table, and the bars travel along the second material flow direction D, as shown in Figure 1.

In order to facilitate understanding and description, the present utility model adopts the absolute positional relationship to describe, unless otherwise specified, the orientation word "up" means that it is perpendicular to the paper surface of Fig. 1 and points to the outside direction of the paper surface, and the orientation word "down" Indicates that it is perpendicular to the paper surface of Figure 1 and points to the inside of the paper surface, the orientation word "left" represents the left direction in Figure 1, the orientation word "right" represents the right direction in Figure 1, and the orientation word "front" represents the figure The lower direction in 1, the orientation word "rear" means the upper direction in Fig. 1 . The present invention is described using the viewing angle of a reader or user, but the above-mentioned orientation words cannot be understood or interpreted as limiting the protection scope of the present invention.

The above descriptions are only specific examples of the present invention, and cannot limit the scope of implementation of the present invention. Therefore, the replacement of the equivalent components, or the equivalent changes and modifications made according to the scope of the patent protection of the present invention should still belong to the scope of the present invention. Scope covered by this patent. In addition, technical features and technical features, technical features and technical solutions, and technical solutions and technical solutions in the present invention can be freely combined and used.

Claims (9)

1. A bar production line, characterized in that the bar production line comprises a chain conveyor (3) and a rotary device (5) arranged in turn, and the outlet of the chain conveyor (3) is provided with a guide vertical plate ( 301) and a stopper device (10), the stopper device (10) comprising a mounting bracket (101) and a stopper arm (102), the stopper arm (102) capable of blocking the bar (11) leaving the chain conveyor (3) ) continues to move forward, a guide channel (12) for guiding the falling of the bar (11) can be formed between the stopper arm (102) and the guide vertical plate (301), and the falling bar (11) can pass through the guide channel ( The lower end of 12) enters the material receiving area (502) of the rotary device (5). 2. The bar production line according to claim 1, characterized in that, the material stopper arm (102) is a strip-shaped curved structure, and the material stopper device (10) comprises a plurality of material stopper arms (102), a plurality of material stopper arms The arrangement direction of (102) is the same as the arrangement direction of the plurality of chain conveyors (3). 3. The bar production line according to claim 2, wherein the stopper arm (102) comprises a connecting section (1021), a bending section (1022) and a guiding section (1023) which are connected in sequence from top to bottom, and the guiding section (1023) The material vertical plate (301) includes a horizontal section (3011) and an upright section (3012) connected up and down, and the guide section (1023) and the upright section (3012) can form a guide channel (12). 4. The bar production line according to claim 3, characterized in that, the bar production line comprises a plurality of chain conveyors (3), and the stopper arms (102) correspond to the chain conveyors (3) one-to-one, and the stopper arms (102) correspond to the chain conveyors (3). The connecting section (1021) of the material arm (102) is located above the horizontal section (3011) of the material guide vertical plate (301). 5. The bar production line according to claim 1, characterized in that the lower end of the guide channel (12) is located in the material receiving area (502) of the rotary device (5), and the lower part of the guide channel (12) is connected to the bar (502). The diameters of 11) are matched, and the width of the guide channel (12) gradually decreases in the direction from top to bottom. 6. The bar production line according to claim 1, wherein the inlet of the guide channel (12) is located at the upper part of the guide channel (12), the outlet of the guide channel (12) is located at the lower part of the guide channel (12), and the blocking The material arm (102) can be rotated relative to the mounting bracket (101), and the width of the guide channel (12) can be adjusted. 7. The bar production line according to claim 1, characterized in that the mounting bracket (101) comprises a column (1011) and a beam (1012), the beam (1012) is located above the chain conveyor (3), and the stopper arm (102) is connected with the beam (1012) through the connecting assembly (103). 8. The bar production line according to claim 7, wherein the connecting assembly (103) comprises a connecting plate (1031) and a bracket plate (1032), the connecting plate (1031) is fixed on the beam (1012), and two The parallel support plates (1032) are connected and fixed with the connecting plate (1031), the stopper arm (102) is located between the two support plates (1032), and the support plate (1032) and the stopper arm (102) are provided with three The above pin holes (1033), the stopper arm (102) is connected to the two bracket plates (1032) through two pins (1034), and the distance between the material guide vertical plate (301) and the stopper arm (102) can be adjust. 9. The bar production line according to claim 1, wherein the material of the stopper arm (102) is a flexible material, the stopper arm (102) is in a suspended state, and one side of the stopper arm (102) faces the chain Conveyor (3), the other side of the stopper arm (102) faces the slewing device (5), the lower end of the stopper arm (102) is provided with a counterweight, or the other side of the stopper arm (102) is externally connected There is a resilient reset member (104).

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