Background
The powder spraying coating process is one surface treating process to spray, fix, cure and form powder paint onto workpiece based on electrostatic adsorption principle. The process comprises the following general steps of workpiece pretreatment, spraying, solidification and cooling. The process has a wide application range, and is applicable to plastic parts, metal parts and wood materials.
On the other hand, the relatively advanced and efficient powder spraying coating process is generally on-line, namely, a workpiece is mounted on a conveying line through a hanger and then sequentially passes through the areas corresponding to the steps, so that the basic powder spraying coating effect can be realized.
In addition, the above-mentioned "accumulation type" word means that the conveyor line is not a conventional constant-speed conveyor line. Compared with a common conveying line, the accumulation conveying line has the main difference in function that on the premise that the conveying line is not stopped, workpieces are allowed to wait temporarily at required positions for a plurality of accumulation, and then enter each processing area according to the required number and the required speed. Otherwise, the driving motor of the conveying line needs to be frequently switched on and off to match the conveying speed and the operation time of each processing area, and the service life of the driving motor can be greatly shortened.
Generally, the accumulation conveyor line is provided with a special engagement device between the conveyor line and the hanger, i.e. when the engagement relationship is not triggered, the conveyor line can be made to continue to advance, but the hanger is stopped in front of the processing area to be paused together with the workpiece.
Or a movable connecting device is arranged between the conveying line and the hanging tool, and a blocking device is arranged at the entrance of the processing area. The blocking strength of the blocking device is sufficient to separate the conveyor line from the articulating mechanism such that the conveyor line advances but the articulating mechanism is stationary. Finally, the blocking device is used for 'putting in' the required number of workpieces according to the preset number, interval time and other parameters.
At this time, the entrance of the processing area will generally stop waiting for a plurality of workpieces, and finally, a plurality of operation areas with different processing speeds are ensured, and one conveyor belt can be shared.
Correspondingly, the special hanging tool for the accumulation type conveying line is required to have a certain distance separating function, so that harmful impact and collision damage between two adjacent workpieces waiting for accumulation are avoided.
For example, chinese patent publication No. CN205151519U and publication No. 2016.04.13 discloses a general hanger for a power and free hanging chain type quenching and tempering furnace, which structurally comprises a hanger framework and a hanger, wherein the hanger framework consists of a hinged support, a hanging shaft, a double-hook beam and a lifting lug, and the hanger is formed by sequentially connecting one or more C-shaped chain links and S-shaped hooks.
The hanger has the advantages of simple structure, simple operation, convenient use, convenient management, strong interchangeability and high benefit.
However, in the practical use process, the hanger has at least the following 2 defects, and is also the technical problem to be solved by the utility model, namely:
Firstly, the conveying direction blocking limiting structure is lack, when the workpieces on the accumulation type conveying line are accumulated and waiting in a waiting area, the workpieces are easy to squeeze and collide, and the problem is particularly obvious on the workpieces with relatively large sizes;
Second, its chain link structure is when the work piece gets to put, can be inclined together with the work piece, and then improves the convenience of work piece getting to put the operation, but this characteristic that allows the slope is unfavorable when work piece normal transportation, especially in the waiting place district of power and free formula transfer chain, damages adjacent work piece more easily.
Therefore, in summary, a novel hanger with an anti-collision function for adjacent workpieces is urgently needed at present, and the novel hanger is specially used for various accumulation type conveying lines, so that the processes of powder spraying, coating and the like can be safely carried out.
Disclosure of utility model
The utility model provides a hanging tool for powder spraying coating by accumulation and release, which can ensure that 1, when workpieces accumulate in a waiting area, the workpieces have enough and adjustable spacing distance in the conveying direction, so as to ensure that the workpieces are not easy to damage, 2, the combined pipe unit has 2-gear limiting strength, ensures that the workpieces have enough inclination amplitude when being taken and placed, and has smaller swing amplitude when being transported, and finally still avoids the workpiece damage.
The utility model solves the problems by adopting the technical scheme that the hanger for the powder spraying coating of the power and free type structurally comprises a chain hook, a sling and a workpiece hook, and further comprises a main body frame unit, wherein the upper end and the lower end of the main body frame unit are respectively used for installing the chain hook and the sling, a vertical blocking plate unit and a horizontal blocking frame unit are respectively arranged at two side positions on the main body frame unit and used for increasing the distance between two adjacent workpieces, and a combined pipe unit is arranged on the main body frame unit and used for sleeving the sling.
The main body frame unit comprises a bottom plate for installing the sling and the vertical blocking plate unit, 2 vertical plates which are respectively arranged at two side positions on the bottom plate and used for installing the hooks on the chains and the transverse blocking frame unit, and a reinforcing transverse plate with two ends respectively arranged on the two vertical plates and used for installing the vertical blocking plate unit.
The further preferable technical scheme is that the vertical blocking plate unit comprises 2 transverse protruding plates respectively arranged on the bottom plate and the reinforcing transverse plate, and vertical plates arranged on the two transverse protruding plates and used for blocking the transverse blocking frame units of the adjacent hanging tool.
The further preferable technical scheme is that the transverse blocking frame unit comprises 2 transverse pipe bodies respectively arranged on the two vertical plates, 2 inserting rods respectively arranged on the two transverse pipe bodies, and a movable transverse plate which is arranged on the two inserting rods and used for blocking the vertical blocking plate units adjacent to the hanging tool.
The further preferable technical scheme is that the combined pipe unit comprises a fixed pipe which is arranged on the bottom plate and sleeved with the sling, and an extension pipe which is sleeved on the outer ring surface of the fixed pipe and used for sleeving the sling in a sliding manner when the workpiece is moved and conveyed.
The further preferable technical scheme is that the main body frame unit further comprises a hanging hole for adding the weight, which is arranged on the bottom plate.
The further preferable technical scheme is that the transverse blocking frame unit further comprises a plurality of adjusting holes arranged on the transverse tube body, mounting holes arranged on the inserted link, and adjusting rods arranged on the adjusting holes and the mounting holes.
The further preferable technical scheme is that the transverse blocking frame unit further comprises an anti-falling block arranged on the upper end face of the adjusting rod.
The further preferable technical scheme is that the combined pipe unit further comprises a protrusion block for waiting for supporting the extension pipe and a clamping groove for sliding, wherein the protrusion block for waiting for supporting is arranged on the fixed pipe, and the clamping groove for sliding is arranged on the extension pipe and used for inserting the protrusion block for waiting for supporting.
The further preferable technical scheme is that the combined pipe unit further comprises a holding rod for sliding downwards, and the holding rod is arranged on the outer ring surface of the extension pipe.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of a main body frame unit in the present utility model.
FIG. 3 is a schematic view of the position structure of the combined pipe unit in the present utility model.
FIG. 4 is a schematic view of the position of the stand-by bump according to the present utility model.
Fig. 5 is a schematic view showing the position structure of the vertical barrier unit in the present utility model.
Fig. 6 is a schematic structural view of the transverse barrier unit according to the present utility model.
FIG. 7 is a schematic view of the position of the hanger in the waiting area of the present utility model.
In the figures, the meaning of each label is as follows:
a workpiece a, a powder spraying coating operation room b, a conveying belt c, a slipping connecting piece d and a baffle rod e;
a chain hook 11, a sling 12 and a workpiece hook 13;
a main body frame unit 1, a vertical blocking plate unit 2, a horizontal blocking frame unit 3 and a combined pipe unit 4;
the floor 101, the vertical plate 102, the reinforcing horizontal plate 103, the horizontal protruding plate 201, the vertical plate 202, the horizontal pipe body 301, the inserting rod 302, the movable horizontal plate 303, the fixed pipe 401, the extension pipe 402, the hanging hole 104 for adding the weight, the adjusting hole 304, the mounting hole 305, the adjusting rod 306, the anti-falling block 307, the protruding block 403 for waiting, the clamping groove 404 for sliding down, the holding rod 405 for sliding down, and the anti-slip strip 406.
Detailed Description
The following description is of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model.
As shown in figures 1-7, the hanger for the power-assisted spray coating structurally comprises a chain hook 11, a sling 12 and a workpiece hook 13, and is characterized by further comprising a main body frame unit 1, wherein the upper end and the lower end of the main body frame unit are respectively used for installing the chain hook 11 and the sling 12, a vertical blocking plate unit 2 and a horizontal blocking frame unit 3 are respectively arranged at two side positions on the main body frame unit 1 and used for increasing the distance between two adjacent workpieces a, and a combined pipe unit 4 is arranged on the main body frame unit 1 and used for sleeving the sling 12.
In this embodiment, the hanger is used with a slidable connector d and a lever e. The latter two are commercial devices, which function to allow the rack to be accumulated and placed as needed upstream of the powder coating booth b, along with the work piece a.
The sliding connecting piece d is movably connected with the conveying belt c, and the sliding connecting piece d and the conveying belt c can be separated from each other as long as the resistance on the hanger is enough. The gear lever e is connected with the motor and the control circuit, and can be used for placing a proper number of workpieces a at required time as required, so that the accumulation conveyor line can be finally ensured to effectively run.
In addition, the protruding function of the hanger mainly comprises the following 4 points.
The first and two adjacent hanging tools are blocked by the vertical blocking plate unit 2 of one hanging tool and the horizontal blocking frame unit 3 of the other hanging tool, so that workpieces a are not easy to damage even in the conveying line accumulation waiting area with the highest workpiece density.
Second, the blocking distance is adjustable, when the size of a batch of workpieces a is relatively small, the blocking distance can be shortened, and then the workpiece accumulation capacity of the accumulation waiting area is increased on the premise of being difficult to damage.
Thirdly, in the accumulation waiting area with the largest requirement of avoiding swinging and preventing collision, the combined pipe unit 4 can be greatly sleeved with the sling 12, so that the swinging difficulty of the sling 12 is increased, and the workpiece a is further protected.
Fourth, the above-mentioned range of cup jointing, when work piece a gets from the hanger and puts, prevent promptly when the demand of colliding with is lower, can reduce and cup joint spacing intensity, allow hoist cable 12 swing relatively great amplitude, and then make things convenient for work piece a's getting to put the operation.
Finally, the on-chain hook 11, the sling 12 and the workpiece hook 13 are all commercial products, the on-chain hook 11 and the workpiece hook 13 can be S-shaped or J-shaped, and the sling 12 is a steel rope, a rope and a circular ring chain.
The main body frame unit 1 includes a base plate 101 for mounting the slings 12 and the vertical blocking plate units 2, 2 risers 102 respectively provided at both side positions on the base plate 101 and for mounting the on-chain hooks 11 and the horizontal blocking frame units 3, and reinforcing cross plates 103 respectively provided at both ends on the two risers 102 and for mounting the vertical blocking plate units 2.
In this embodiment, the base plate 101, the vertical plate 102 and the reinforcing cross plate 103 are integrally formed. The whole is fixedly connected with the hooks 11, the slings 12, the vertical blocking plate units 2 and the horizontal blocking frame units 3 on the chain, so that enough suspension strength is ensured.
The vertical blocking plate unit 2 includes 2 lateral protruding plates 201 provided on the base plate 101 and the reinforcing cross plate 103, respectively, and a vertical plate 202 provided on both the lateral protruding plates 201 and for blocking the lateral blocking frame unit 3 of the adjacent hanger.
In this embodiment, the vertical blocking plate unit 2 is integrally formed with the main body frame unit 1 or is welded and fixed at a later stage.
When the hanger is mounted on the conveying belt c, the vertical blocking plate units 2 are required to be guaranteed to have uniform orientations, namely all the vertical blocking plate units are oriented to the conveying front or all the vertical blocking plate units are oriented to the conveying rear, and therefore, the situation that the vertical blocking plate units 2 are propped against the transverse blocking frame units 3 is guaranteed between two adjacent hangers.
The blocking mode for separating the workpiece a is higher in blocking effect effectiveness than the blocking mode for blocking two vertical blocking plate units 2 or two horizontal blocking frame units 3, and even if the hanger swings slightly in the front-back direction and the left-right direction, the blocking effect is not affected.
The lateral blocking frame unit 3 includes 2 lateral pipe bodies 301 respectively disposed on the two vertical plates 102, 2 insert rods 302 respectively disposed on the two lateral pipe bodies 301, and a movable lateral plate 303 disposed on the two insert rods 302 and used for blocking the vertical blocking plate units 2 of the adjacent hanger.
In this embodiment, the lateral pipe 301 is integrally formed with or welded to the main body frame unit 1.
The insert rod 302 can be inserted into and pulled out of the transverse pipe 301, so as to ensure that a sufficient and as small as possible spacing distance exists between the accumulated workpieces a, and finally, the workpiece accumulation capacity of the accumulation waiting area is increased.
Accordingly, a sufficient and appropriate plug-in clamping strength is required between the plug-in rod 302 and the lateral tube body 301.
The combined pipe unit 4 comprises a fixed pipe 401 which is arranged on the bottom plate 101 and sleeved with the sling 12, and an extension pipe 402 which is sleeved on the outer ring surface of the fixed pipe 401 and is used for sleeving the sling 12 in a sliding manner when the workpiece a is moved and conveyed.
In this embodiment, the fixing tube 401 is integrally formed with or welded to the main body frame unit 1.
The extension pipe 402 can allow the sling 12 to have a larger swing amplitude when the extension pipe is substantially sleeved on the fixing pipe 401. At this time, the corresponding hanger state is that the workpiece a is being taken and put, and the sling 12 is inclined, so that the workpiece taking and putting operation is more convenient. Of course, there is little need for damage prevention in the accumulation area where the work a is being transported on the conveyor belt c at a relatively sparse position.
The extension tube 402 is small enough to fit over the fixed tube 401 when the former has been slid down. The sling 12, even if it is swung, allows a relatively small amplitude, avoiding damage between adjacent workpieces a. This is particularly important in the above-mentioned accumulation zone.
The sliding action of the extension tube 402 may be manually performed by an operator after the workpiece a is hung.
The main body frame unit 1 further includes a weight-increasing hanging hole 104 provided on the base plate 101.
In this embodiment, the function of adding the hanging hole 104 for weight is to additionally attach a weight block with proper weight, so that the hanger has a basic anti-shake function.
The transverse blocking frame unit 3 further comprises a plurality of adjusting holes 304 formed in the transverse tube body 301, a mounting hole 305 formed in the insert rod 302, and an adjusting rod 306 formed in the adjusting holes 304 and the mounting hole 305.
In this embodiment, the adjusting holes 304 are arranged in pairs, with the number of 4-8 pairs, so as to ensure that the lateral blocking frame unit 3 has a plurality of blocking effects with different protruding magnitudes.
Generally, if the workpiece a is large in size and the striking operation is relatively easy, the adjusting rod 306 needs to be inserted into the adjusting hole 304 relatively outside, and the movable cross plate 303 is relatively far away from the main body frame unit 1, and vice versa.
The lateral blocking frame unit 3 further includes a drop-preventing block 307 provided on an upper end surface of the adjusting lever 306.
In this embodiment, the adjusting rod 306 and the anti-drop block 307 form a "T-shaped" structure, and the latter is larger than the adjusting hole 304, so as to ensure that the transverse barrier frame unit 3 does not retract spontaneously and shorten without external force.
Wherein the number of the mounting holes 305 is 1, and a pair of the adjusting holes 304 are optionally aligned for insertion, so that the movable transverse plate 303 can be fully abutted against the vertical plate 202.
The combination pipe unit 4 further includes a stand-by projection 403 provided on the fixing pipe 401 for supporting the extension pipe 402, and a slide-down clip groove 404 provided on the extension pipe 402 for inserting the stand-by projection 403.
In this embodiment, the positioning protruding block 403 is disposed relatively below the fixing tube 401, and the sliding clamping groove 404 is opened upward from the lower surface of the extension tube 402, and cannot penetrate the entire extension tube 402. The vertical length of the sliding-down slot 404 is the maximum sliding-down dimension of the extension tube 402.
When the standing protruding block 403 enters the sliding-down slot 404, it is generally located at the highest position in the sliding-down slot 404, so as to ensure that the extension tube 402 is sleeved with the fixing tube 401, and limit the sling 12.
The above-mentioned limiting strength mainly depends on the material rigidity of the combined pipe unit 4 and the coupling accuracy of the extension pipe 402 and the fixing pipe 401. The combined pipe unit 4 cannot completely stop the swing of the sling 12, and only properly reduces the swing amplitude of the sling 12 together with the workpiece a, so as to avoid the collision of the workpiece a as much as possible.
The combination tube unit 4 further includes a grip lever 405 for sliding down provided on the outer circumferential surface of the extension tube 402.
In this embodiment, the grip lever 405 is used to rotate, slide down, open the extension tube 402, or raise, rotate, and retract the extension tube 402 relatively conveniently after being gripped.
In addition, the anti-slip strip 406 made of common rubber is further provided on the lower surface of the extension pipe 402, so as to prevent the extension pipe 402 from falling after spontaneously rotating when the work a is normally taken and put and the sling 12 is inclined with a high probability.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various modifications may be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model. These are all non-inventive modifications which are intended to be protected by the patent laws within the scope of the appended claims.