CN211109560U - Catenary chain conveying assembly and hot-dip galvanizing production line - Google Patents

Abstract

The utility model discloses a catenary type conveying assembly belongs to zinc-plating processing technology field. The utility model discloses a: a support; the annular track is fixedly arranged on the bracket and is provided with a lifting track, and the lifting track comprises a plurality of descending tracks and ascending tracks which are arranged at intervals and connected in sequence; a chain assembly disposed within the annular track; and the hanging frame is arranged on the chain assembly or the annular track. Moreover, the utility model also provides a hot-dip galvanizing production line. The automatic lifting of the workpiece is realized through the downlink rail and the uplink rail which are connected in sequence in the production line, so that manual operation is not needed, and the production efficiency is improved.

Description

Catenary chain conveying assembly and hot-dip galvanizing production line

Technical Field

The utility model belongs to the technical field of the zinc-plating processing, concretely relates to catenary type hot dip galvanizing production line.

Background

At present, in actual production, the hot dip galvanizing adopts a suspension galvanizing type hot dip galvanizing production mode, and particularly, batch hoisting of workpieces is performed through a traveling straight production line or an electric hoist circulating production line to perform intermittent galvanizing processing operation.

However, in the process of implementing the technical solution of the embodiment of the present application, the inventors of the embodiment of the present application find that the prior art has at least the following problems: the hoisting equipment used in the procedures of rinsing, plating assisting, zinc dipping, cooling, passivation and the like of the hanging plating type hot dip galvanizing production line is manually operated, so that the production efficiency is low, the number of operating workers is increased, the requirement on manual technology is high, the possibility of misoperation is increased, and the problems of influencing the product quality, the factory safety and the like are caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, the embodiment of the application provides a catenary conveyor assembly and a hot-dip galvanizing production line, wherein the production line realizes automatic lifting of workpieces through a descending rail and an ascending rail which are sequentially connected, so that manual operation is not needed, and the production efficiency is improved.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

in a first aspect, embodiments of the present application provide a catenary conveyor assembly, comprising:

a support;

the annular track is fixedly arranged on the bracket and is provided with a lifting track, and the lifting track comprises a plurality of descending tracks and ascending tracks which are arranged at intervals and connected in sequence;

a chain assembly disposed within the annular track; and

the hanging frame is arranged on the chain assembly or the annular track.

Optionally, the central axis of the landing rail is arranged on a vertical plane.

Optionally, the downstream track and/or the upstream track each include a transition track, and the transition track smoothly connects the downstream track and the upstream track that are adjacent to each other.

Optionally, the central axis of the landing track is an S-shaped curve or a cosine function curve.

Optionally, the circular track further includes a circulating track, two ends of the circulating track are respectively connected with two ends of the lifting track, and a central axis of the circulating track is arranged on a horizontal plane.

Compared with the prior art, the embodiment of the application provides a catenary type conveying assembly, hoisting equipment such as an electric hoist is omitted, an ascending rail and a descending rail are directly constructed in the rail, so that workpieces mounted on the conveying assembly are forced to rise and fall through the ascending rail and the descending rail, and the required rising and falling movement is completed. Thereby improving the conveying efficiency and reducing the potential safety hazard.

In a second aspect, embodiments of the present application provide a hot-dip galvanizing line including:

the catenary conveyor assembly as described above; and

the plurality of galvanizing process pools are positioned below the catenary type conveying assembly, the plurality of galvanizing process pools are sequentially arranged along the feeding and discharging directions of the lifting track, and each galvanizing process pool in the plurality of galvanizing process pools is arranged in one-to-one correspondence with a group of sequentially connected descending tracks and ascending tracks;

wherein the workpieces on the hanger bracket in the catenary conveyor assembly can be fully or at least partially immersed in the galvanizing process tank at the bottom end of the descending track and the ascending track.

Optionally, the plurality of galvanizing process pools comprise a rinsing pool, a plating assisting pool, a hot-dip zinc pot, a cooling pool and a passivation pool which are sequentially arranged.

Optionally, the circular track of the catenary conveying assembly is provided with a hanging part position and a picking part position;

the hanger is arranged corresponding to the position of the hanger; the pickup table is arranged corresponding to the pickup position.

Optionally, the device further comprises a zinc smoke collecting device and a dust removing device.

Compared with the prior art, the hot-dip galvanizing production line provided by the embodiment of the application replaces the existing hoisting equipment such as the electric hoist through the ascending rail and the descending rail, so that the workpiece is only required to be manually hung or taken down, the number of required workers is greatly reduced, and the safety performance is also improved. And the hot-dip galvanizing production line provided by the embodiment of the application is carried out through the closed catenary conveying assembly, and the continuous circulating operation is continuously carried out, so that batch workpieces are automatically immersed in the zinc liquid and are taken away from the zinc liquid in the conveying process. The ultrahigh frequency zinc dipping processing can be adopted, the working efficiency is greatly improved, and the productivity is increased. The workpiece is in a relative motion state in the zinc liquid, so that the solidified zinc is melted again, and the zinc dipping time is shortened compared with the prior art. The usage amount of zinc is reduced, and the cost is reduced.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present application;

FIG. 2 is a schematic view of workpiece immersion in accordance with a preferred embodiment of the present application;

in the figure, 1-a rinsing pool, 2-a plating assisting pool, 3-a hot-dip zinc pot, 4-a cooling pool, 5-a passivation pool, 10-a chain component and 20-a hanging rack.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The existing annular catenary type conveying device is generally provided with an electric hoist on a chain, and workpieces are hoisted through the electric hoist. But the conveying device needs to manually control the hoisting action of each electric hoist through a controller. Not only needs to be equipped with more human resources, but also is easy to cause various production accidents caused by manual negligence.

Therefore, the embodiment of the application provides a catenary type conveying assembly, which omits hoisting equipment such as an electric hoist and the like, and directly constructs an uplink rail and a downlink rail in the rails, so that a workpiece mounted on the conveying assembly is forced to rise and fall through the uplink rail and the downlink rail, and the required rising and falling motion is completed.

The technical solutions of the embodiments of the present application are further described below with reference to some preferred embodiments.

A catenary conveyor assembly, comprising: a bracket (not shown), an endless track (not shown), a chain assembly 10, and a hanger bracket 20.

Wherein, the support is frame construction, including stand and the support body that is located the stand top. The columns are secured to the ground or work surface by anchor bolts or the like as is known in the art. The support frame body is fixedly connected to the top end of the upright post through connecting pieces such as angle steel and bolt sets. The upright posts also support the support frame at a certain height from the ground.

The endless track is fixedly disposed on the support by angle steel, bolt sets, and other techniques known in the art. In particular to a support frame body. The chain assembly 10 and the hanger bracket 20 are mounted within the endless track. The hanger brackets 20 are used for hanging workpieces, and the chain assembly 10 connects each hanger bracket 20 and drives each hanger bracket 20 to move forward along the circular track, and enables the hanger brackets 20 to keep synchronous operation.

Specifically, the annular track is provided with a lifting track, and the lifting track comprises a plurality of descending tracks and ascending tracks which are arranged at intervals and connected in sequence. The endless track has a basic conveying plane, which is typically a horizontal plane. In the horizontal plane, the hanger bracket 20 drives the workpiece to move in space mainly, so as to move the workpiece to a preset position of each process. The part of the circular track corresponding to the preset position is the lifting track, and the lifting track specifically comprises a descending track and an ascending track. After the workpiece moves from the conveying plane to the inlet end of the descending track, the workpiece enters the descending track. In the descending track, the hanger bracket 20 and the workpiece loaded thereon perform a combined motion in a space formed by forward movement driven by the chain and descending in a vertical plane. The forward movement may be a linear or curvilinear movement in a horizontal plane. The hanger bracket 20 and the workpiece loaded thereon are driven by the chain to move continuously into the ascending rail. In the ascending rail, the hanger bracket 20 and the workpiece loaded thereon perform a combined motion in a space formed by forward movement driven by the chain and ascending in a vertical plane.

Compared with the existing lifting mode that workpieces are mainly lifted by lifting equipment such as an electric hoist, the lifting mode needs to manually stop the rail car, then the electric hoist is manually controlled to drop and put down the workpieces transported in the air, in the embodiment, the workpieces are hung on the hanging piece frame 20 and then do spatial conforming motion along with the hanging piece frame 20 to finish lifting on a vertical surface, and the preset process is finished in the lifting process. The rail parking operation is not needed, and the conveying efficiency is improved. And manual control is not needed, and an additional control system is not needed to be additionally arranged for control, so that the probability of production accidents is reduced.

When a plurality of preset positions required by the working procedures exist, the lifting track comprises a plurality of descending channels and ascending channels which are sequentially connected at intervals. So that a workpiece completes a plurality of lifting movements as it follows the hanger frame 20 in its travel within the circular path.

In particular, the particular construction and connection to the endless track of the chain assembly 10, and the connection of the chain to the hanger bracket 20, is not important to the present application, and those skilled in the art will know how to implement, for example, the endless track may be constructed of I-steel, in which case the chain is located below the endless track, and the hanger bracket 20 is constructed as a trolley suspended from the endless track, the trolley sliding on the upper end face of the floor of the endless track via small wheels. And the bottom of the trolley is connected with the chain. Or the annular track is a rectangular pipeline with a hollow interior and an opening at the bottom along the length direction of the annular track, at the moment, the hanging rack 20 is a trolley arranged in the annular track, the trolley is also connected with a chain, the trolley moves in the annular track through wheels at the bottom of the trolley, and the bottom of the trolley is provided with a workpiece hanging rack extending out of the hole in the annular track. Accordingly, the specific construction and connection to the endless track of the chain assembly 10, and the connection of the chain to the hanger bracket 20, will not be described in detail herein.

And as will be readily appreciated, referring to fig. 1 and 2, the path shape of the chain assembly matches the endless track arrangement, i.e., the chain assembly 10 also has a plurality of down segments and up segments spaced from each other and connected in series corresponding to the landing tracks. And the descending section corresponds to the descending track and the ascending section corresponds to the ascending track.

Referring to fig. 1 and 2, in order to save the space occupied by the catenary conveyor assembly, the central axis of the landing rail is disposed on a vertical plane. Namely, the projection of the lifting rail on the horizontal plane is a straight line, so that the phenomenon that the workpiece hung on the hanging frame 20 is centrifugally moved by the feeding motion of the lifting rail in the left and right directions along the feeding direction in the space is avoided, and safety accidents such as workpiece falling, collision with other equipment in a workshop and the like caused by the centrifugal motion of the workpiece are avoided.

In order to avoid the situation that the workpiece is mounted on the pendant frame 20 and advances along with the pendant frame 20, in some embodiments, the connection between the downlink track and the uplink track is subjected to severe shaking, jamming and the like, which are prone to safety accidents, and the downlink track and/or the uplink track each include a transition track which smoothly connects the downlink track and the uplink track adjacent to each other.

Specifically, as shown in fig. 2, the transition track is configured at both ends of the descending track and the ascending track, and the center line of the transition track is configured as an arc. Or the transition track is constructed at one end of the down track or the up track.

In some embodiments, the central axis of the landing rail is an S-shaped curve or a cosine function curve, which allows for smoother engagement between the upper and lower rails and facilitates smooth advancement of the workpiece and the chain assembly 10.

In some embodiments, the circular track further includes a circulating track, two ends of the circulating track are respectively connected to two ends of the lifting track, and a central axis of the circulating track is disposed on a horizontal plane. The endless track is here intended to mean an endless track on the aforementioned transport plane.

The embodiment of the application also provides a hot-dip galvanizing production line, which comprises: a catenary conveyor assembly as previously described and a plurality of galvanizing process tanks.

The plurality of galvanizing process pools are located below the catenary type conveying assembly, the galvanizing process pools are sequentially arranged along the feeding direction to the discharging direction of the lifting rail, and each galvanizing process pool in the plurality of galvanizing process pools is in one-to-one correspondence with a group of descending rails and ascending rails which are sequentially connected.

And the workpieces on the hanger brackets 20 in the catenary conveyor assembly can be fully or at least partially immersed in the galvanizing process tank at the bottom ends of the descending rails and the ascending rails.

Specifically, in a hot-dip galvanizing production line, the plurality of galvanizing process pools comprise a rinsing pool, a plating assisting pool, a hot-dip galvanizing pot, a cooling pool and a passivation pool which are sequentially arranged.

The annular track of the catenary type conveying assembly is provided with a hanging part position and a picking part position; the hanger is arranged corresponding to the position of the hanger; the pickup table is arranged corresponding to the pickup position. The hot-dip galvanizing production line provided by the embodiment only needs to manually mount the workpiece on the pendant frame 20 or take the workpiece off the pendant table and the workpiece taking table, so that the manual work is greatly reduced, and the safety performance is also improved.

Also comprises a zinc fume collecting device and a dust removing device. Zinc smoke collection device and dust collector are not the main points of this application protection, and the skilled person knows how to implement simultaneously, and the no longer redundant description here.

Referring to fig. 1, the rinsing bath 1, the plating assistant bath 2, the hot-dip galvanizing kettle 3, the cooling bath 4 and the passivation bath 5 are arranged along a first straight line in the working area of the workshop, and then the catenary type conveying assembly is installed in the galvanizing workshop, and the projection straight line of the lifting rail on the ground is parallel to or collinear with the first straight line. And one trough formed by each descending track and each ascending track corresponds to one pool.

Thus, when the workpiece moves forward in the annular track along with the pendant frame 20, the workpiece descends from the descending track until the joint of the descending track and the ascending track, and the workpiece is completely immersed under the liquid level of the pool. Then, the workpiece is moved forward continuously along the ascending rail, and the workpiece is separated from the pool, so that the working procedure corresponding to the pool is completed. Meanwhile, in each step of the process, the workpiece is always kept in motion, not in a static state in the prior art.

Specifically, at the position of a hot-dip galvanizing pot, a workpiece in an existing suspension galvanizing type hot-dip galvanizing production line is in a relatively static state in a zinc liquid, but solidified zinc needs to be melted again for a long time, and the requirement is met by adopting a mode that the workpiece stays in the zinc liquid for a longer time in the prior art.

However, the zinc dipping time is prolonged, so that the zinc loading of the workpiece is rapidly improved, the cost is not reduced, and the problems of poor zinc plating quality, unattractive appearance and the like of the product are also generated.

Meanwhile, because the existing hot dip galvanizing action is discontinuous, the temperature of the zinc liquid is changed sharply when each batch of workpieces are immersed in the zinc liquid. However, the temperature difference of the zinc liquid is too large, which is not beneficial to the protection of the equipment and has great influence on the service life of the equipment. In addition, in order to increase the temperature of the zinc liquid to ensure the zinc immersion of each batch, the power of the heating equipment needs to be increased, which is not beneficial to energy conservation and consumption reduction.

Meanwhile, the existing intermittent batch production workpieces intermittently generate a large amount of zinc smoke during dip coating, and the zinc smoke is high in rising speed and large in smoke volume and is not easy to collect and treat. In the prior art, the power of the dust removal equipment and the zinc fume collection equipment is increased to meet the requirement, but the equipment is idle at high power and wastes energy when zinc dipping is not carried out.

The hot-dip galvanizing production line provided by the embodiment is continuously and circularly operated by the closed catenary conveying assembly, and continuously immerses the batch of workpieces into the zinc liquid and takes away the workpieces from the zinc liquid. The ultrahigh frequency zinc dipping processing can be adopted, the working efficiency is greatly improved, and the productivity is increased. The workpiece is in a relative motion state in the zinc liquid, so that the solidified zinc is melted again, and the zinc dipping time is shortened compared with the prior art. The usage amount of zinc is reduced, and the cost is reduced.

In addition, the temperature difference of the zinc liquid in the zinc pot is reduced due to the high-frequency uninterrupted zinc dipping, so that the service life of the zinc pot equipment is prolonged.

And because the workpiece zinc dipping frequency is improved, the quantity of zinc dipping workpieces in each batch can be reduced. At the moment, the zinc pot heating system can uniformly heat zinc without large-power rapid heating because of the small-batch high-frequency uninterrupted zinc dipping. Thereby reducing the temperature difference of the zinc liquid in the zinc pot and further prolonging the service life of the equipment. Because the zinc dipping batches of each batch are not large, the method is more favorable for completely dripping and draining the liquid zinc left on the workpiece through a collision vibration process, reduces the zinc cost and reduces the polishing process. In this embodiment, during the galvanization, the production of zinc cigarette belongs to incessant even a small amount of production, and it is more convenient that zinc cigarette is collected to this can reduce dust collecting equipment and reduce zinc cigarette collecting equipment motor power and reduce the energy consumption, does benefit to the environmental protection.

Any numerical value recited herein includes all values from the lower value to the upper value that are incremented by one unit, provided that there is a separation of at least two units between any lower value and any higher value. For example, if it is stated that the number of a component or a value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, it is intended that equivalents such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also expressly enumerated in this specification. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are only examples of what is intended to be explicitly recited, and all possible combinations of numerical values between the lowest value and the highest value that are explicitly recited in the specification in a similar manner are to be considered.

Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. The use of "about" or "approximately" with a range applies to both endpoints of the range. Thus, "about 20 to about 30" is intended to cover "about 20 to about 30", including at least the endpoints specified.

All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.

A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter that is disclosed herein is not intended to forego such subject matter, nor should the inventors be construed as having contemplated such subject matter as being part of the disclosed inventive subject matter.

Claims (9)

1. A catenary conveyor assembly, comprising:

a support;

the annular track is fixedly arranged on the bracket and is provided with a lifting track, and the lifting track comprises a plurality of descending tracks and ascending tracks which are arranged at intervals and connected in sequence;

a chain assembly disposed within the annular track; and

the hanging frame is arranged on the chain assembly or the annular track.

2. The catenary conveyor assembly of claim 1, wherein the central axis of the landing rail is disposed in a vertical plane.

3. The catenary conveyor assembly of claim 1, wherein the down-track and/or the up-track each comprise a transition track smoothly connecting the down-track and the up-track adjacent to each other.

4. A catenary conveyor assembly according to claim 1 or 3, wherein the central axis of the landing rail is an S-curve or a cosine function curve.

5. The catenary type conveyor assembly according to claim 1, wherein the endless track further comprises an endless track, both ends of the endless track are connected to both ends of the lifting track, respectively, and a central axis of the endless track is disposed on a horizontal plane.

6. A hot-dip galvanizing line, comprising:

the catenary delivery assembly of any of claims 1-5;

the plurality of galvanizing process pools are positioned below the catenary type conveying assembly, the plurality of galvanizing process pools are sequentially arranged along the feeding and discharging directions of the lifting track, and each galvanizing process pool in the plurality of galvanizing process pools is arranged in one-to-one correspondence with a group of sequentially connected descending tracks and ascending tracks;

wherein the workpieces on the hanger bracket in the catenary conveyor assembly can be fully or at least partially immersed in the galvanizing process tank at the bottom end of the descending track and the ascending track.

7. The hot-dip galvanizing line according to claim 6, wherein the plurality of galvanizing process tanks include a rinsing tank, a plating assistant tank, a hot-dip galvanizing kettle, a cooling tank and a passivation tank which are arranged in sequence.

8. A hot dip galvanizing line according to claim 6, characterized in that the endless track of the catenary conveyor assembly has a hanging position and a picking position;

the hanger is arranged corresponding to the position of the hanger; the pickup table is arranged corresponding to the pickup position.

9. The hot-dip galvanizing line according to claim 6, further comprising a zinc fume collecting device and a dust removing device.

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