Double-track plastic dipping production line

Abstract

The utility model relates to the technical field of plastic dipping production lines, and provides a double-track plastic dipping production line which comprises a driving track, a conveying track, a lifting track, a plastic dipping pool, a lifting appliance and a moving piece, the driving track and the conveying track are arranged side by side, the lifting track is arranged in a lifting sliding mode relative to the conveying track, and the plastic dipping pool is arranged below the lifting track. The lifting appliance is movably arranged relative to the length direction of the conveying track and used for lifting workpieces, the moving part is movably arranged relative to the length direction of the driving track, the moving part is detachably connected with the lifting appliance and used for driving the lifting appliance to move, the conveying track is provided with a notch, and after being lifted, the lifting track enters the notch and is spliced with the conveying track; or the lifting appliance is separated from the notch and driven to approach the plastic dipping pool. By means of the technical scheme, the problems that in the prior art, a plastic dipping production line needs to drive a plastic dipping pool to ascend and descend for plastic dipping, the size and weight are too large, and ascending and descending are inconvenient are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dip plastic production line technical field, specifically, relates to a double track dip plastic production line. BACKGROUND

[0002] In industrial production, dip plastic process is widely used in the surface treatment of various metal products to give the product good protective, decorative and other special properties. The traditional dip plastic production line mostly adopts single track design, and its operation principle mainly depends on the chain transmission system. Under this structure, the chain as a power transmission medium drives the lifting appliance installed thereon to run stably. The lifting appliance undertakes the task of hanging the workpiece and ensures that the workpiece can move along the predetermined track in the production process.

[0003] Most dip plastic production lines need to stop the lifting appliance above the dip plastic tank, drive the dip plastic tank to rise, and immerse the workpiece in the dip plastic tank. However, due to the need to accommodate a sufficient amount of dip plastic liquid to meet the dip plastic demand of the workpiece, the dip plastic tank is often large in size and heavy in weight. In the selection and design of the lifting mechanism, the power device and transmission structure capable of bearing the huge weight of the dip plastic tank need to be considered, which not only increases the manufacturing cost of the equipment, but also makes the structure of the entire production line complex.

[0004] The large weight of the dip plastic tank makes it difficult to accurately control the lifting speed during the lifting process. Too fast lifting speed may cause the dip plastic liquid to splash out, resulting in waste of dip plastic liquid and pollution of the production environment; and too slow speed will seriously affect the production efficiency and increase the production cost. Frequent lifting operation of the dip plastic tank also has a negative impact on the stability and service life of the production line, increasing the maintenance cost and downtime of the equipment.

[0005] In summary, the traditional single track dip plastic production line has limitations due to the large size, heavy weight, and inconvenient lifting of the dip plastic tank, which gradually exposes its limitations in the pursuit of high efficiency, stability, and low cost production process in modern industrial production. Therefore, there is an urgent need for a new dip plastic production line structure to solve these problems, and the double track dip plastic production line emerges as the times require. SUMMARY

[0006] The utility model provides a double track dip plastic production line, solves the problem that the dip plastic production line needs to drive the dip plastic tank to lift for dip plastic in the related art, and the size and weight are too large and inconvenient to lift.

[0007] The technical scheme of the utility model is as follows: a double track dip plastic production line, comprising a driving track, a conveying track, a lifting track, a dip plastic tank, a lifting appliance and a moving piece, the driving track and the conveying track are arranged side by side, the lifting track is arranged to slide up and down relative to the conveying track, the dip plastic tank is arranged below the lifting track,

[0008] The lifting appliance is movably arranged relative to the length direction of the conveying track, and is used for lifting a workpiece.

[0009] The conveying track has a gap, and the lifting track enters the gap and is connected with the conveying track after lifting, or the lifting track is separated from the gap and drives the lifting appliance to approach the plastic dipping pool.

[0010] Optionally, the lifting appliance comprises a support, a roller, a connecting piece, a lifting frame and a lifting ring, the support is movably arranged in the conveying track, the roller is rotatably arranged on the support, the connecting piece is hingedly connected with the support and the lifting frame at two ends respectively, the connecting piece is at least two, and the lifting ring is arranged on the lifting frame.

[0011] Optionally, the conveying track and the lifting track are both hollow square tubes, and the bottom wall of each of the hollow square tubes has a through groove penetrating along the length direction of the hollow square tube, and the roller is rotatably arranged on the two sides of the support and abuts against the inner wall of the conveying track or the lifting track.

[0012] Optionally, the machine frame, a vertical moving frame, a horizontal moving frame, a longitudinal moving frame and a driving rod are further included, the vertical moving frame is movably arranged on the machine frame in the vertical direction, the horizontal moving frame is movably arranged on the machine frame in the horizontal direction, the longitudinal moving frame is movably arranged on the machine frame in the longitudinal direction, the driving rod is arranged on the longitudinal moving frame, the driving rod has a plurality of clamping portions, the lifting ring is rotatably arranged relative to the lifting frame, a toothed plate is coaxially arranged on the lifting ring, the clamping portions are used for engaging with the toothed plate, and the longitudinal moving frame is used for driving the lifting ring to rotate after moving.

[0013] Optionally, a connecting rod is further included, and the connecting rod is swingably arranged on the lifting frame, and the lifting ring is rotatably arranged on the connecting rod.

[0014] Optionally, the lifting ring is V-shaped.

[0015] Optionally, a lifting frame, a lifting chain and a lifting sprocket are further included, the lifting frame is slidably arranged on the machine frame in the lifting direction, the lifting track is arranged on the lifting frame, the lifting sprocket is rotatably arranged on the machine frame, the lifting sprocket is a plurality of, the lifting chain is sleeved on the plurality of lifting sprockets, one end of the lifting chain is connected with the lifting track, and the other end of the lifting chain is connected with a winch driving unit.

[0016] Optionally, a counterweight is further included, and the counterweight is arranged on the lifting chain, and the counterweight and the lifting frame are located on two sides of the machine frame respectively.

[0017] Optionally, a swing lock is further included, a middle portion of the swing lock is hinged to the lifting track, the swing lock has a first end and a second end, the first end has a lock portion, a top wall of the lifting track has a lock hole, after the swing lock swings, the lock portion enters or leaves the lock hole, and the swing lock is used for blocking the roller in the lifting track.

[0018] Optionally, a cross beam is further included, the cross beam is arranged on the rack, and after the lifting track lifts, the cross beam abuts against or cancels abutting against the second end of the swing lock, and the cross beam is used for driving the swing lock to swing.

[0019] The working principle and beneficial effects of the utility model are as follows:

[0020] In the actual operation process of the double-track plastic dipping production line, firstly, the motor drives the moving part (preferably a driving chain) to move in the driving track along the length direction thereof. When the moving part is in the connected state with the lifting tool, the moving part drives the lifting tool to move synchronously on the conveying track, at this time, the lifting tool suspends the workpiece to be dipped in plastic. When the lifting tool reaches the position above the notch of the conveying track, that is, the position of the lifting track, the operation of the moving part is stopped. Then, the detachable connection between the moving part and the lifting tool is released, and the lifting tool is stably stopped on the lifting track. Then, the lowering driving device of the lifting track is started, the lifting track gradually lowers with the lifting tool and the workpiece, until the workpiece is completely dipped in the dipping liquid in the dipping pool, the dipping liquid is evenly attached to the surface of the workpiece to form a protective and decorative layer. After the dipping reaches the predetermined time, the lifting track rises to the initial height, and the conveying track is reconnected to form a complete track structure. Then, the moving part is connected with the lifting tool again, the moving part is restarted, and drives the lifting tool and the workpiece after the dipping to continue moving along the conveying track, and enters the subsequent solidification, cooling and other process links, thereby completing a complete dipping production cycle, and the production line can continuously circulate and operate, and a large number of workpieces can be efficiently processed.

[0021] By adopting the double-track design, the large and heavy dipping pool lifting mechanism in the traditional dipping production line is abandoned. Only a relatively small and simple lifting track needs to be arranged at a specific position of the conveying track, the requirements for the power device and the transmission structure are greatly reduced, thereby the manufacturing cost of the equipment is significantly reduced. The double-track structure makes the layout of the components of the production line more reasonable, the overall structure is more compact and simple, and the complexity of the production line is reduced, thereby the installation, debugging and maintenance are facilitated.

[0022] The detachable connection structure of the chain and the lifting tool can use a jaw mechanism driven by a telescopic component, install a telescopic component and a jaw on the chain, and drive the jaw to open and close to clamp or unclamp the lifting tool, so that the detachable connection is realized. A lock plate and a lock column structure can also be used, the lock plate is arranged on the chain, the lock plate is provided with a lock groove, and the lock column is arranged on the lifting tool. After the lifting track is lifted, the lock column can enter or leave the lock groove.

[0023] In the normal operation process of the double-track dipping production line, the driving chain moves in the driving track to drive the lifting tool connected therewith to move stably on the conveying track. At this time, the lock column on the lifting tool is in the lock groove of the driving chain lock plate, and the two are closely matched to ensure effective transmission of power. When the lifting tool moves above the lifting track and the lifting track starts to descend for dipping operation, the lock column on the lifting tool gradually leaves the lock groove of the driving chain lock plate as the lifting track descends. After the lock column completely leaves the lock groove, the lifting tool can independently descend into the dipping pool along with the lifting track without being limited by the driving chain. In the dipping pool, the workpiece can be smoothly dipped. After dipping, the lifting track starts to rise and reset. When the lifting track rises to be flush with and butt against the conveying track, the lock column accurately re-enters the lock groove, and at this time, the driving chain can drive the lifting tool to continue moving along the conveying track to convey the dipped workpiece to subsequent curing, inspection and other process links. The whole process is closely connected and smooth, ensuring efficient and continuous operation of the production line.

[0024] The cooperation mechanism of the lock column and the lock groove ensures the effective separation and reconnection of the lifting tool and the driving chain during lifting of the lifting track. Since the connection mode of the lock column and the lock groove is simple and reliable, it does not add too much load to the driving chain, and reduces the high failure rate caused by complex connection structure. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above characteristics, technical features, advantages and implementation modes of the present application will be further described in the following preferred embodiments in a clear and understandable manner combined with the drawings.

[0026] Figure 1 It is a top view schematic diagram of a double-track dipping production line;

[0027] Figure 2 It is a structural schematic diagram of one angle of the rack;

[0028] Figure 3 It is Figure 2 It is an enlarged view of A in the middle;

[0029] Figure 4 It is a structural schematic diagram of another angle of the rack;

[0030] Figure 5 It isFigure 4 Enlarged view at B;

[0031] Figure 6 Structure diagram of another angle of the rack;

[0032] Figure 7 Figure 6 Enlarged view at C;

[0033] Figure 8 Structure diagram of the lifting tool.

[0034] In the figure: 1, driving track, 2, conveying track, 3, lifting track, 4, plastic dipping pool, 5, lifting tool, 6, moving piece, 501, support, 502, roller, 503, connecting piece, 504, lifting bracket, 505, lifting ring, 7, rack, 8, vertical moving frame, 9, horizontal moving frame, 10, longitudinal moving frame, 11, driving rod, 12, clamping part, 13, toothed plate, 14, connecting rod, 15, lifting frame, 16, lifting chain, 17, lifting sprocket, 18, counterweight, 19, swing locking piece, 20, locking part, 21, locking hole, 22, cross beam. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings and other embodiments according to these drawings without creating any creative labor.

[0036] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0037] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting" and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] ​In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] Referring to Figures 1-8 For the first embodiment of the utility model, a double track plastic dipping production line is provided, which comprises a driving track 1, a conveying track 2, a lifting track 3, a plastic dipping pool 4, a lifting appliance 5 and a moving part 6, the driving track 1 and the conveying track 2 are arranged side by side, the lifting track 3 is arranged to slide up and down relative to the conveying track 2, the plastic dipping pool 4 is arranged below the lifting track 3,

[0040] The lifting appliance 5 is arranged to move relative to the length direction of the conveying track 2 and is used for lifting workpieces, the moving part 6 is arranged to move relative to the length direction of the driving track 1, the moving part 6 is detachably connected with the lifting appliance 5 and is used for driving the lifting appliance 5 to move,

[0041] The conveying track 2 has a gap, after the lifting track 3 is lifted, enters the gap and is spliced with the conveying track 2, or is separated from the gap and drives the lifting appliance 5 to approach the plastic dipping pool 4.

[0042] In the actual operation process of the double track plastic dipping production line in the embodiment, first, the motor drives the moving part 6 (preferably a driving chain) to move in the driving track 1 along the length direction thereof. When the moving part 6 is in the connected state with the lifting appliance 5, the moving part 6 drives the lifting appliance 5 to move synchronously on the conveying track 2, at this time, the workpieces to be dipped are hung on the lifting appliance 5. When the lifting appliance 5 reaches the position above the gap of the conveying track 2 along with the movement of the moving part 6, that is, the position where the lifting track 3 is located, the operation of the moving part 6 is stopped. Then, the detachable connection between the moving part 6 and the lifting appliance 5 is released, so that the lifting appliance 5 is stably stopped on the lifting track 3. Then, the lowering driving device of the lifting track 3 is started, the lifting track 3 gradually descends with the lifting appliance 5 and the workpieces, until the workpieces are completely immersed in the dipping liquid in the plastic dipping pool 4, the dipping liquid is evenly attached to the surface of the workpieces to form a protective and decorative layer. After the dipping reaches the predetermined time, the lifting track 3 rises to the initial height and is spliced with the conveying track 2 to form a complete track structure again. Then, the moving part 6 is connected with the lifting appliance 5 again, the moving part 6 is restarted to drive the lifting appliance 5 and the workpieces after dipping to continue to move along the conveying track 2, enter the subsequent solidification, cooling and other process links, thus a complete dipping production cycle is completed, and the production line can continuously circulate and operate to efficiently process a large number of workpieces.

[0043] By adopting the double-track design, the lifting mechanism of the huge and heavy impregnation tank 4 in the traditional impregnation production line is abandoned. Only a relatively small and simple lifting track 3 is arranged at a specific position of the conveying track 2, which greatly reduces the requirements for the power device and the transmission structure, thereby significantly reducing the manufacturing cost of the equipment. The double-track structure makes the layout of the components of the production line more reasonable, and the overall structure more compact and simple, thereby reducing the complexity of the production line and facilitating installation, debugging and maintenance.

[0044] The detachable connection structure of the chain and the lifting tool 5 can use a jaw mechanism driven by a telescopic component. The telescopic component and the jaw are installed on the chain. The jaw is opened and closed by the telescopic component to clamp or unclamp the lifting tool 5, so as to realize detachable connection. The structure of a lock plate and a lock post can also be used. The lock plate is arranged on the chain, and the lock plate has a lock groove. The lock post is arranged on the lifting tool 5. After the lifting track 3 is lifted, the lock post can enter or leave the lock groove.

[0045] During the normal operation of the double-track impregnation production line, the driving chain moves in the driving track 1 to drive the lifting tool 5 to move stably on the conveying track 2. At this time, the lock post on the lifting tool 5 is in the lock groove of the driving chain lock plate, and the two are tightly matched to ensure effective transmission of power. When the lifting tool 5 moves above the lifting track 3, and the lifting track 3 starts to descend for impregnation operation, the lock post on the lifting tool 5 gradually leaves the lock groove of the driving chain lock plate as the lifting track 3 descends. After the lock post completely leaves the lock groove, the lifting tool 5 can independently descend into the impregnation tank 4 along with the lifting track 3 without being restricted by the driving chain. In the impregnation tank 4, the workpiece can be smoothly impregnated. After impregnation, the lifting track 3 starts to rise and reset. When the lifting track 3 rises to the level of the conveying track 2 and is connected, the lock post accurately re-enters the lock groove, and at this time the driving chain can again drive the lifting tool 5 to continue moving along the conveying track 2, conveying the impregnated workpiece to the subsequent curing, inspection and other process links. The whole process is closely connected and smooth, ensuring efficient and continuous operation of the production line.

[0046] The cooperation mechanism of the lock post and the lock groove ensures the effective separation and reconnection of the lifting tool 5 and the driving chain during the lifting of the lifting track 3. Since the connection mode of the lock post and the lock groove is simple and reliable, it does not add too much load to the driving chain, and at the same time reduces the high failure rate caused by the complex connection structure.

[0047] Further, the lifting tool 5 comprises a support 501, a roller 502, a connecting piece 503, a hanger 504 and a lifting ring 505, the support 501 is movably arranged in the conveying track 2, the roller 502 is rotatably arranged on the support 501, the connecting piece 503 is hingedly connected with the support 501 and the hanger 504 at two ends respectively, the connecting piece 503 is at least two, and the lifting ring 505 is arranged on the hanger 504.

[0048] In the embodiment, the roller 502 effectively reduces the friction of the lifting tool 5 during movement due to its good rotation performance, so that the lifting tool 5 can smoothly travel on the conveying track 2 at a set speed. When the lifting tool 5 reaches the position of the lifting track 3 and stops moving, the connection between the chain and the lifting tool 5 is released at this time, and the lifting tool 5 will have a certain tendency to sway due to inertia. However, since the connecting piece 503 is hingedly connected with the support 501 and the hanger 504, this hinged structure allows the hanger 504 to slightly swing within a certain range relative to the support 501. Through the buffering of the hinged structure, the swaying energy is effectively dispersed, avoiding excessive impact on the overall structure of the lifting tool 5. Moreover, since at least two connecting pieces 503 are provided, stable connection and support can be provided to the hanger 504 from different positions.

[0049] Further, the conveying track 2 and the lifting track 3 are both hollow square tubes, and the bottom walls both have through grooves extending along the length direction thereof. The rollers 502 are rotatably arranged on both sides of the support 501, and the rollers 502 abut against the inner walls of the conveying track 2 or the lifting track 3.

[0050] In the embodiment, when the lifting tool 5 is driven by the chain, the rollers 502 on both sides of the support 501 of the lifting tool 5 roll along the inner wall of the conveying track 2. The lifting tool 5 carrying the parts moves on the conveying track 2 at a stable speed, and the rolling friction between the rollers 502 and the inner wall of the conveying track 2 ensures the stability of the movement of the lifting tool 5, and almost no jamming or deviation phenomenon occurs. The hollow square tube structure of the conveying track 2 wraps the rollers 502 and the support 501 therein, effectively blocking the interference of dust, debris and other impurities in the external environment. When the lifting tool 5 moves to the gap of the conveying track 2 and transitions above the lifting track 3, the rollers 502 on both sides of the support 501 smoothly contact and start to roll along the inner wall of the lifting track 3.

[0051] Whether on the conveying track 2 or the lifting track 3, the rollers 502 on both sides of the support 501 can support and position the lifting tool 5, avoiding the lifting tool 5 from swaying or tilting. The through grooves in the bottom walls of the conveying track 2 and the lifting track 3 provide sufficient space for the connecting piece 503 to adjust its posture freely within the range of the through grooves, so as to adapt to the dynamic changes of the overall lifting tool 5 during movement.

[0052] Further, the rack 7, the vertical moving rack 8, the horizontal moving rack 9, the longitudinal moving rack 10 and the driving rod 11 are further included, the vertical moving rack 8 is arranged on the rack 7 and moves vertically, the horizontal moving rack 9 is arranged on the rack 7 and moves horizontally, the longitudinal moving rack 10 is arranged on the rack 7 and moves longitudinally, the driving rod 11 is arranged on the longitudinal moving rack 10, the driving rod 11 has a plurality of clamping portions 12, the lifting ring 505 is arranged rotatably on the lifting frame 504, the lifting ring 505 is coaxially provided with a toothed plate 13, the clamping portions 12 are used for engaging with the toothed plate 13, and the longitudinal moving rack 10 is used for driving the lifting ring 505 to rotate after moving.

[0053] In the embodiment, when the lifting tool 5 carries the workpiece and slowly immerses into the dipping tank 4 under the action of the lifting rail 3, the vertical moving rack 8 is first started and is raised or lowered by a certain distance to adjust the position of the driving rod 11 in the vertical direction, so that the driving rod 11 is close to the height of the lifting ring 505 of the lifting tool 5. Then, the horizontal moving rack 9 starts to work and drives the driving rod 11 to be accurately positioned in the horizontal direction, so that the clamping portions 12 on the driving rod 11 engage with the toothed plate 13 on the lifting ring 505. Subsequently, the longitudinal moving rack 10 drives the driving rod 11 to move forward and backward. Due to the engagement relationship between the clamping portions 12 and the toothed plate 13, the toothed plate 13 starts to drive the lifting ring 505 to rotate under the pushing of the clamping portions 12. The lifting ring 505 further drives the lifting frame 504 and the whole workpiece to rotate at a constant speed in the dipping liquid. In the rotating process, each surface of the workpiece can fully contact with the dipping liquid, so that the thickness of the dipping layer is more uniform, thereby improving the dipping quality and protection performance of the product and reducing the rate of defective products caused by uneven dipping.

[0054] Further, the connecting rod 14 is further included, the connecting rod 14 is swingably arranged on the lifting frame 504, and the lifting ring 505 is rotatably arranged on the connecting rod 14.

[0055] The lifting ring 505 is V-shaped.

[0056] In the embodiment, at the moment when the clamping portions 12 on the driving rod 11 contact with the toothed plate 13 on the lifting ring 505, the connecting rod 14 is swingably arranged on the lifting frame 504. The connecting rod 14 can automatically swing slightly according to the slight impact force generated when the clamping portions 12 approach, so as to effectively buffer the impact force generated at the moment when the clamping portions 12 contact with the toothed plate 13.

[0057] With the buffering of the connecting rod 14, the clamping portions 12 and the toothed plate 13 can stably engage. Then, the longitudinal moving rack 10 continues to move and drives the lifting ring 505 to rotate through the engagement relationship between the clamping portions 12 and the toothed plate 13. The lifting ring 505 drives the workpiece to stably rotate in the dipping liquid, so that the dipping liquid uniformly wraps the surface of the workpiece.

[0058] When the hook needs to be installed on the lifting ring 505 for suspending the workpiece, due to the V-shaped structure of the lifting ring 505, the connecting part of the hook is placed in the groove of the lifting ring 505, and the hook can be kept in a relatively fixed position in the lifting ring 505 and is not easy to fall off or deviate.

[0059] Further, the lifting frame 15, the lifting chain 16 and the lifting sprocket 17 are further included, the lifting frame 15 is arranged on the frame 7 in a sliding manner, the lifting rail 3 is arranged on the lifting frame 15, the lifting sprocket 17 is arranged on the frame 7 in a rotating manner, the lifting sprocket 17 is a plurality of, the lifting chain 16 is sleeved on the plurality of lifting sprockets 17, one end of the lifting chain 16 is connected with the lifting rail 3, and the other end is used for connecting the winch driving unit.

[0060] In the embodiment, when the lifting rail 3 needs to be driven to lift, the motor of the winch driving unit is started, and one end of the lifting chain 16 connected with the motor starts to be wound or unwound. The lifting chain 16 is sleeved between a plurality of lifting sprockets 17 rotating on the frame 7, and since one end of the lifting chain 16 is connected with the lifting frame 15 on which the lifting rail 3 is arranged, with the movement of the chain, the lifting frame 15 starts to stably lift along the frame 7. When the workpiece needs to be immersed in the dipping tank 4, the lifting frame 15 stably descends under the traction of the lifting chain 16. At this time, the lifting rail 3 descends together with the lifting frame 15, so that the workpiece on the lifting tool 5 can accurately enter the dipping tank 4.

[0061] During the whole descending process, the lifting frame 15 and the lifting rail 3 will not shake or deviate due to the support and guiding effect of the plurality of lifting sprockets 17 on the lifting chain 16. After the dipping is completed, the winch driving unit is reversed, the lifting chain 16 moves reversely, the lifting frame 15 drives the lifting rail 3 to ascend at a stable speed, and returns to the initial position, so that the next dipping operation can be performed.

[0062] Further, the counterweight 18 is further included, the counterweight 18 is arranged on the lifting chain 16, and the counterweight 18 and the lifting frame 15 are located on the two sides of the frame 7 respectively.

[0063] In the embodiment, when the dipping task is processed, with the descending of the lifting frame 15, one side of the lifting chain 16 moves downward, and at this time, the counterweight 18 located on the other side of the frame 7 moves upward along the frame 7. During the whole lifting process, the frame 7 always keeps stable under force, so that the problems of deformation of the frame 7 and uneven wear of the chain due to uneven force are avoided, thereby ensuring the long-term stable operation and production precision of the production line.

[0064] Further, a swing lock 19 is provided, the middle part of the swing lock 19 is hinged to the lifting track 3, the swing lock 19 has a first end and a second end, the first end has a lock part 20, the top wall of the lifting track 3 has a lock hole 21, after the swing of the swing lock 19, the lock part 20 enters or leaves the lock hole 21, and is used for blocking the roller 502 in the lifting track 3.

[0065] Further, a cross beam 22 is arranged on the rack 7, the cross beam 22 abuts or cancels the abutment of the second end of the swing lock 19 after the lifting of the lifting track 3, and is used for driving the swing of the swing lock 19.

[0066] In the embodiment, under the running state of the double-track plastic dipping production line, the cross beam 22 abuts against the second end of the swing lock 19, at this time, the first end of the swing lock 19 is lifted, the lock part 20 is located above the lock hole 21 and does not enter the lock hole 21, and the roller 502 can freely roll in the lifting track 3.

[0067] When the lifting track 3 starts to descend for plastic dipping operation, with the descent of the lifting track 3, the cross beam 22 gradually leaves the contact with the second end of the swing lock 19, and when the lifting track 3 descends to a certain distance, the cross beam 22 no longer presses the second end of the swing lock 19. At this time, the swing lock 19 starts to swing around the middle hinged point under the action of the gravity of the lock part 20, the lock part 20 gradually enters the lock hole 21, thereby effectively blocking the roller 502 in the lifting track 3, so that the lifting appliance 5 is fixed at the current position during the lifting process, and the shaking during the lifting process is avoided.

[0068] After the plastic dipping is completed, the lifting track 3 starts to rise, when rising to a certain height, the cross beam 22 again contacts and presses the second end of the swing lock 19, so that the first end of the swing lock 19 is lifted, the lock part 20 leaves the lock hole 21, and the roller 502 can again freely roll in the lifting track 3, and the lifting appliance 5 can smoothly rise with the lifting track 3 and move to the subsequent process position.

[0069] The cooperation of the swing lock 19 and the cross beam 22 realizes the automatic stabilization of the lifting appliance 5 during the lifting process. When the lifting track 3 descends, no additional power or complex control device is needed, and the lock part 20 can be automatically inserted into the lock hole 21 by the gravity of the swing lock 19, the roller 502 is blocked, and it is ensured that the lifting appliance 5 will not move in the lifting track 3 due to accidental external force or shaking. The design structure is relatively simple, which is composed of only the swing lock 19, the cross beam 22 and the lock hole 21 on the lifting track 3, and there is no complex electronic control or hydraulic driving system, so that the failure rate and maintenance cost of the equipment are reduced.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A twin track dip molding production line characterized in that, The device comprises a driving track (1), a conveying track (2), a lifting track (3), a dipping pool (4), a lifting tool (5) and a moving part (6), the driving track (1) and the conveying track (2) are arranged side by side, the lifting track (3) is arranged to slide up and down relative to the conveying track (2), the dipping pool (4) is arranged below the lifting track (3), the lifting tool (5) is arranged to move relative to the length direction of the conveying track (2) and is used to lift a workpiece, the moving part (6) is arranged to move relative to the length direction of the driving track (1), the moving part (6) is detachably connected with the lifting tool (5) and is used to drive the lifting tool (5) to move, the conveying track (2) has a gap, after the lifting track (3) is lifted, the lifting track (3) enters the gap and is connected with the conveying track (2), or the lifting track (3) is separated from the gap and drives the lifting tool (5) to move close to the dipping pool (4).

2. A twin track dip molding production line according to claim 1, characterized in that, The lifting tool (5) comprises a support (501), a roller (502), a connecting part (503), a lifting frame (504) and a lifting ring (505), the support (501) is arranged to move in the conveying track (2), the roller (502) is arranged to rotate on the support (501), the connecting part (503) is used to be hingedly connected with the support (501) and the lifting frame (504) at two ends respectively, the connecting part (503) is at least two, and the lifting ring (505) is arranged on the lifting frame (504).

3. A twin track dip molding production line according to claim 2, characterized in that, The conveying track (2) and the lifting track (3) are both hollow square tubes and have through grooves in the bottom walls along the length directions of the bottom walls, the rollers (502) are arranged to rotate on the two sides of the support (501), and the rollers (502) abut against the inner walls of the conveying track or the lifting track (3).

4. A twin track dip molding production line according to claim 3, characterized in that, The device further comprises a rack (7), a vertical moving frame (8), a horizontal moving frame (9), a longitudinal moving frame (10) and a driving rod (11), the vertical moving frame (8) is arranged to move vertically on the rack (7), the horizontal moving frame (9) is arranged to move horizontally on the rack (7), the longitudinal moving frame (10) is arranged to move longitudinally on the rack (7), the driving rod (11) is arranged on the longitudinal moving frame (10), the driving rod (11) has a plurality of clamping parts (12) thereon, the lifting ring (505) is arranged to rotate relative to the lifting frame (504), a toothed plate (13) is coaxially arranged on the lifting ring (505), the clamping parts (12) are used to engage with the toothed plate (13), and the longitudinal moving frame (10) is used to drive the lifting ring (505) to rotate after moving.

5. A twin track dip molding production line according to claim 4, characterized in that, The device further comprises a connecting rod (14), the connecting rod (14) is arranged to swing on the lifting frame (504), and the lifting ring (505) is arranged to rotate on the connecting rod (14).

6. A twin track dip molding production line according to claim 4, characterized in that, The lifting ring (505) is V-shaped.

7. A twin track dip molding production line according to claim 4, characterized in that, Further comprising a lifting frame (15), a lifting chain (16) and a lifting sprocket (17), the lifting frame (15) is arranged on the frame (7) to slide up and down, the lifting track (3) is arranged on the lifting frame (15), the lifting sprocket (17) is arranged on the frame (7) to rotate, the lifting sprocket (17) is a plurality of, the lifting chain (16) is sleeved on the plurality of lifting sprockets (17), one end of the lifting chain (16) is connected with the lifting track (3), and the other end is used for connecting a winch driving unit.

8. A twin track dip molding production line according to claim 7, characterized in that, Further comprising a counterweight (18), the counterweight (18) is arranged on the lifting chain (16), and the counterweight (18) and the lifting frame (15) are respectively located on two sides of the frame (7).

9. A twin track dip molding production line according to claim 4, characterized in that, Further comprising a swing lock (19), the middle part of the swing lock (19) is hinged to the lifting track (3), the swing lock (19) has a first end and a second end, the first end has a lock portion (20), the top wall of the lifting track (3) has a lock hole (21), after the swing lock (19) swings, the lock portion (20) enters or leaves the lock hole (21), and the roller (502) in the lifting track (3) is blocked.

10. A twin track dip molding production line according to claim 9, characterized in that, Further comprising a cross beam (22), the cross beam (22) is arranged on the frame (7), after the lifting track (3) is lifted, the cross beam (22) abuts against or cancels abutting against the second end of the swing lock (19), and the swing lock (19) is driven to swing.

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