Spraying cleaning machine

Abstract

The utility model discloses a spraying cleaning machine which comprises a machine frame, a conveying device, a spraying device and a clamping device, and a conveying piece is driven by a conveying power unit to be conveyed from a feeding port to a discharging port to be installed on the machine frame in a reciprocating motion mode. A cleaning channel is formed between the feed port and the discharge port, and the nozzles are driven by the spraying power unit to spray at least part of the sucked spraying liquid to the surface of a workpiece conveyed to the cleaning channel; the clamping piece is located between the feeding port and the discharging port, and the clamping piece is configured to clamp / release workpieces in the cleaning channel under driving of the clamping power unit. The cleaning device at least has the advantages that continuous and uninterrupted cleaning is achieved, and the working efficiency is guaranteed; during cleaning, the workpiece is clamped by the clamping piece, and the posture and the position of the workpiece relative to the conveying piece are not changed.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning equipment technical field especially relates to a spray cleaning machine. BACKGROUND

[0002] In industrial or consumer fields, dust, liquid droplets and other foreign matters often adhere to an object. In order to strip the foreign matters from the adhered object surface, a series of means are adopted, such as air blowing, centrifugal throwing, spraying (such as CN211683519U adopts water, ethanol, acetone, isopropyl alcohol or propylene carbonate cleaning solution), using a device similar to a brush (such as CN213056015U discloses a cleaning brush), and sometimes various means are combined (such as CN219505459U adopts a spray head and a cleaning brush).

[0003] However, the common cleaning method can only clean one or several objects at a time. After cleaning is completed, the cleaned objects need to be taken out and new objects to be cleaned are put in. Therefore, continuous operation cannot be realized, the cleaning operation efficiency is low, and it is not suitable for continuous, large-scale and efficient operation. At the same time, the cleaned liquid cannot be recycled, resulting in material waste and not meeting the needs of energy saving and emission reduction.

[0004] Therefore, in order to solve the above problems, the utility model provides a spray cleaning machine. SUMMARY

[0005] In order to realize continuous and uninterrupted cleaning and ensure operation efficiency, the position and posture of the workpiece relative to the conveying member remain constant during conveying, the utility model embodiment provides a spray cleaning machine, which comprises:

[0006] a rack;

[0007] a conveying device comprising a conveying power unit and a conveying member, which is reciprocally movably installed on the rack from a feeding port to a discharging port under the driving of the conveying power unit;

[0008] a spraying device comprising a spraying power unit, a nozzle, a container and a filter, a cleaning channel being formed between the feeding port and the discharging port, spraying liquid in the container being sprayed to the surface of a workpiece conveyed to the cleaning channel through the nozzle under the driving of the spraying power unit, the inlet of the filter being arranged towards the dripping spraying liquid, and the outlet of the filter being communicated to the container; and

[0009] a clamping device comprising a clamping power unit and a clamping member, the clamping member being located between the feeding port and the discharging port, and being configured to clamp / release the workpiece in the cleaning channel under the driving of the clamping power unit.

[0010] Further, the conveying power unit comprises a first motor, a first driving pulley, a first conveying belt and a first driven pulley connected in sequence.

[0011] The first driving pulley is arranged at one end of the discharge port, and the first driven pulley is arranged at one end of the feeding port.

[0012] The first conveying belt is a plurality of belts and is arranged transversely and spaced.

[0013] Further, the first conveying belt is a round belt.

[0014] Further, the nozzle comprises:

[0015] A top nozzle vertically above the cleaning channel and transversely centered, the top nozzle being a 360° rotary nozzle;

[0016] A left nozzle and a right nozzle arranged transversely one left and one right on both sides of the cleaning channel and vertically at the same height as the workpiece arranged on the conveying member, the left nozzle and the right nozzle being rotary nozzles that can reciprocate within a range of not more than 180°; and

[0017] A bottom nozzle vertically above the cleaning channel and transversely centered, the bottom nozzle being a 360° rotary nozzle.

[0018] Further, the top nozzle comprises a first swing motor, a first swing belt and a rotary joint, wherein:

[0019] The first swing motor drives the shell of the rotary joint to rotate through the first swing belt;

[0020] The internal cavities of at least two sub-nozzles fixed to the shell of the rotary joint are in communication with the internal flow channel of the rotary joint.

[0021] Further, the bottom nozzle comprises a second swing motor, a second swing belt and a rotary joint, wherein:

[0022] The second swing motor drives the shell of the rotary joint to rotate through the second swing belt;

[0023] The internal cavities of at least two sub-nozzles fixed to the shell of the rotary joint are in communication with the internal flow channel of the rotary joint.

[0024] Further, the left nozzle comprises a third swing motor and a rocker arm mechanism, wherein:

[0025] The rocker mechanism comprises an eccentric rod, a rocker and a swing arm which are sequentially hinged, the eccentric rod is hingedly connected to the power output end of the third swing motor eccentrically, and the swing arm is hingedly connected to the outer shell of the rotary joint of the left nozzle at one end of the rocker.

[0026] Further, the position to which the left nozzle swings is mirror-symmetrical to the position to which the right nozzle swings with respect to the longitudinal section of the cleaning channel.

[0027] Further, the clamping member comprises a second motor, a second driving pulley, a second conveying belt and a second driven pulley which are sequentially drivingly connected and are respectively installed on the clamping support, wherein:

[0028] The second driving pulley is arranged at one end of the discharge port, and the second driven pulley is arranged at one end of the feeding port;

[0029] The second conveying belt is a plurality of belts which are arranged in transverse intervals.

[0030] Further, the clamping power unit comprises a push rod motor and a clamping swing arm, wherein:

[0031] The first end of the clamping swing arm is hingedly connected to the rack, and the second end of the clamping swing arm is hingedly connected to the clamping support;

[0032] The push rod motor drives the clamping swing arm to rotate around the hinged shaft of the first end of the clamping swing arm, so as to drive the clamping swing arm hingedly connected to the second end of the clamping swing arm to rotate.

[0033] The beneficial effects of the embodiments of the utility model at least include:

[0034] 1. Continuous and uninterrupted cleaning, ensuring operation efficiency

[0035] The conveying power unit drives the conveying member to reciprocate between the feeding port and the discharge port. When the conveying member moves from the feeding port to the discharge port, the workpiece is sent into the conveying member from the feeding port, cleaned by the spraying device on the cleaning channel, and then sent out from the discharge port, so that continuous and uninterrupted cleaning is formed, the workpiece loading and unloading can be carried out without stopping, so that continuous and uninterrupted cleaning is realized, and operation efficiency is ensured.

[0036] 2. During cleaning, the workpiece is clamped by the clamping member, and the posture and position of the workpiece relative to the conveying member do not change

[0037] The position and posture of the workpiece are relatively fixed during cleaning, and do not change greatly under the impact of the spraying device, so that the workpiece can be conveyed from the feeding port to the discharge port without falling, the spraying liquid jet of the spraying device can be directed to the workpiece, and the cleaning effect is improved.

[0038] 3. The spraying liquid can be recycled, energy saving and emission reduction

[0039] The sprayed liquid that drips can be recycled and reused after filtration in the filter, thereby avoiding material waste and saving energy and reducing emissions. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0041] Figure 1 It is a stereoscopic structure schematic diagram of the first perspective of an embodiment of the spraying cleaning machine;

[0042] Figure 2 It is a stereoscopic structure schematic diagram of the second perspective of an embodiment of the spraying cleaning machine; Figure 1 It is a stereoscopic structure schematic diagram of the second perspective, in which the cover is not drawn in order to show the internal structure;

[0043] Figure 3 It is a stereoscopic structure schematic diagram of the first perspective of an embodiment of the conveying device, in which the side baffle is not drawn in;

[0044] Figure 4 It is a stereoscopic structure schematic diagram of the first perspective of an embodiment of the conveying device, in which the side baffle is drawn in;

[0045] Figure 5 It is a working principle diagram of the spraying cleaning, in which the pipeline for conveying the spraying liquid is represented by a dashed line;

[0046] Figure 6 It is a stereoscopic structure schematic diagram of an embodiment of the clamping device.

[0047] In the drawings:

[0048] 11, rack; 12, side baffle; 121, notch; 13, material blocking piece; 14, cover;

[0049] 2, conveying device; 21, conveying power unit; 211, first motor; 212, first driving pulley; 213, first conveying belt; 214, first driven pulley; 22, conveying piece;

[0050] 3, spraying device; 31, spraying power unit; 32, nozzle; 321, top nozzle; 3211, first swing motor; 3212, first swing belt; 322, left nozzle; 3221, third swing motor; 3222, rocker arm mechanism; 32221, eccentric rod; 32222, rocker arm; 32223, swing arm; 323, right nozzle; 324, bottom nozzle; 3241, second swing motor; 3242, second swing belt; 33, container; 34, filter;

[0051] 4, clamping device; 41, clamping power unit; 411, push rod motor; 412, clamping swing arm; 42, clamping piece; 421, second motor; 422, second driving pulley; 423, second conveying belt; 424, second driven pulley; 43, clamping support;

[0052] 51, feed inlet; 52, cleaning channel; 53, discharge outlet;

[0053] 6, workpiece. DETAILED DESCRIPTION

[0054] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.

[0055] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0056] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" 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, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0057] The utility model discloses a kind of spray cleaning machines, see Figures 1 to 6 It includes rack 11, conveying device 2, spraying device 3 and clamping device 4.Conveying device 2 includes conveying power unit 21 and conveying piece 22, conveying piece 22 is reciprocatingly installed in rack 11 under the drive of conveying power unit 21 from feed port 51 to discharge port 53.

[0058] Continue to see Figure 1 And Figure 2 Conveying power unit 21 drives conveying piece 22 to reciprocate between feed port 51 and discharge port 53, when path movement of feed port 51→discharge port 53, workpiece 6 is sent into conveying piece 22 from feed port 51, cleaned by spraying device 3 on cleaning channel 52, then sent out from discharge port 53, to form continuous, uninterrupted cleaning, and workpiece 6 can be loaded and unloaded without stopping, to realize continuous, uninterrupted cleaning, and ensure operation efficiency.

[0059] Continue to see Figure 5 Spraying device 3 includes spraying power unit 31 and nozzle 32, and the space between feed port 51 and discharge port 53 forms cleaning channel 52, and nozzle 32 is configured to spray at least part of the sprayed liquid to the surface of workpiece 6 conveyed to cleaning channel 52 under the drive of spraying power unit 31. The surface of workpiece 6 is sprayed by nozzle 32, so that the surface of workpiece 6 is cleaned.

[0060] Regarding the sprayed liquid, spraying power unit 31 (such as various medium pumps) can be connected to water (such as tap water), or can be connected to a specially configured container 33 (container 33 is filled with a configured cleaning liquid, such as the cleaning liquid disclosed in CN211683519U, which is a mixture of water, ethanol, acetone, isopropyl alcohol or propylene carbonate). Of course, considering recycling, the sprayed liquid can also be collected and filtered (such as filter 34 shown in the figure, especially bag filter 34) after flowing down from cleaning channel 52, and then sucked by spraying power unit 31, to complete recycling.

[0061] Continue to see Figure 1 The periphery of cleaning channel 52 can be provided with a housing 14, and the housing 14 is fixed to the rack 11, so that the cleaning channel 52 is covered inside, and the nozzle 32 of the spraying device 3 can also be covered inside. Thus, a space is formed inside the cleaning channel 52, which is isolated from the outside (except for the feed port 51 and the discharge port 53). The bottom of the housing 14 is provided with a flow channel to flow into the filter 34, and the filtered sprayed liquid can be pumped by the spraying power unit 31 for reuse, see Figure 5 To complete the recycling of the recycled sprayed liquid.

[0062] Continue to seeFigure 6 The clamping device 4 comprises a clamping power unit 41 and a clamping member 42, the clamping member 42 is located between the feeding port 51 and the discharging port 53, and the clamping member 42 is configured to clamp / release the workpiece 6 in the cleaning channel 52 under the drive of the clamping power unit 41. Through the arrangement of the clamping device 4, the position and posture of the workpiece 6 are relatively fixed during cleaning, and will not change greatly under the impact of the spray liquid jet from the nozzle, which ensures that the workpiece 6 can be transported from the feeding port 51 to the discharging port 53 without falling, so that the spray liquid jet of the spray device 3 can be directed to the workpiece 6, and the cleaning effect is improved.

[0063] Continuing to refer to Figure 3 and Figure 4 , the conveying power unit 21 embodiment can include a first motor 211, a first driving pulley 212, a first conveying belt 213 and a first driven pulley 214 connected in sequence. The first motor 211 works to drive the first driving pulley 212, the first conveying belt 213 and the second driving pulley in sequence. The first conveying belt 213 will vibrate slightly in working state, and the workpiece 6 placed thereon will also vibrate slightly, which is beneficial to the separation of foreign matter, spray liquid and mixture of foreign matter and spray liquid attached to the workpiece 6, especially in the scene with relatively large adhesion, such as various parts (such as shoes, etc.) made of light-cured resin through 3D printing, the liquid resin attached to the surface thereof has large viscosity and strong adhesion, and the use of the first conveying belt 213 can separate the resin with strong adhesion.

[0064] Continuing to refer to Figure 3 and Figure 4 , the first driving pulley 212 is arranged at one end of the discharging port 53, and the first driven pulley 214 is arranged at one end of the feeding port 51. This arrangement makes the upper part of the first conveying belt 213 be in tension and the lower part be in relaxation, ensuring that the first conveying belt 213 will not jump greatly on the premise of slight vibration, and ensuring the normal conveying of the workpiece 6.

[0065] It should be further pointed out that the linear speed of the first conveying belt 213 should not be too large to ensure the normal conveying of the workpiece 6.

[0066] Continuing to refer to Figure 3 and Figure 4 , the first conveying belt 213 is a plurality of belts and is arranged transversely and spaced apart, so that the foreign matter, spray liquid or mixture of the two separated from the workpiece 6 can roll down along the apertures between the first conveying belts 213, further improving the cleaning effect.

[0067] Continuing to refer to Figure 3 and Figure 4 , an embodiment of the first conveying belt 213 is a round belt, and the use of the round belt allows the first conveying belt 213 to twist.

[0068] With reference to the foregoing Figure 2 and Figure 5 , in order to further improve the cleaning effect, a plurality of nozzles 32 are arranged, respectively including a top nozzle 321, a bottom nozzle 322, a left side nozzle 323 and a right side nozzle 324 located above, below, left and right of the cleaning channel 52, which can respectively spray cleaning liquid from the above, below, left and right directions to the workpiece 6, thereby improving the cleaning effect.

[0069] With reference to the foregoing Figure 5 , the top nozzle 321 is horizontally centered, and the top nozzle 321 is a 360° rotating nozzle 32, which sprays cleaning liquid from top to bottom through continuous or intermittent rotation of the top nozzle 321.

[0070] With reference to the foregoing Figure 5 , the left side nozzle 323 and the right side nozzle 324 are arranged horizontally one left and one right on both sides of the cleaning channel 52, and vertically at the same height as the workpiece 6 on the conveying member 22. The left side nozzle 323 and the right side nozzle 324 are rotating nozzles 32 that can reciprocate within a range of not more than 180°, and the left side nozzle 323 and the right side nozzle 324 respectively spray cleaning liquid from the left and right sides to the workpiece 6, thereby cleaning the workpiece 6 from both sides. The swing range of the two nozzles 32 is not more than 180°, and the middle position is perpendicular to the extension direction of the cleaning channel 52, which ensures that the two nozzles 32 only spray cleaning liquid into the cleaning channel 52 and do not spray cleaning liquid outside the cleaning channel 52.

[0071] With reference to the foregoing Figure 5 , the bottom nozzle 322 is horizontally centered, and the bottom nozzle 322 is a 360° rotating nozzle 32. Through continuous or intermittent rotation of the top nozzle 321, cleaning liquid is sprayed from below.

[0072] The spray cleaning machine embodiment can further include a controller configured to automatically adjust the clamping degree according to at least one of the following parameters:

[0073] The size of the workpiece 6 to be clamped in the dimension;

[0074] The clamping force provided by the clamping member 42;

[0075] The preset program.

[0076] By automatically adjusting the clamping degree, the clamping degree is moderate, avoiding insufficient clamping to cause changes in the position and posture of the workpiece 6, and also avoiding excessive clamping to exert excessive clamping force on the workpiece 6 (which may cause indentations, irreversible deformation of the workpiece 6, or even cause the covered area to be blocked and cleaned insufficiently due to the clamping member 42 covering part of the surface of the workpiece 6, but the use of the first conveying belt 213 of the circular belt can greatly reduce the blocking effect).

[0077] The input quantity for automatic adjustment of the clamping degree can be at least one of the size of the dimension to be clamped of the workpiece 6 (such as the height of the shoe when the workpiece 6 is a shoe), the clamping force provided by the clamping member 42 (such as by arranging a force sensor between the clamping member 42 and the workpiece 6 or between the clamping member 42 and the clamping support 43, and dynamically adjusting by comparing the actual clamping force with the preset clamping force size range in real time), and the preset program (such as by controlling the stroke of the clamping member 42).

[0078] In addition, the controller automatically adjusts the clamping degree according to the size of the dimension to be clamped of the workpiece 6, wherein:

[0079] The clamping degree parameter (the lower stop point to which the clamping member 42 moves after descending) is generated based on the size of the dimension to be clamped (such as the height of the shoe described above);

[0080] The clamping power unit 41 drives the clamping member 42 to clamp the workpiece 6 according to the clamping degree parameter, that is, the clamping member 42 stops moving after moving to the corresponding lower stop point.

[0081] Each nozzle 32 can adopt a self-rotating structure, which has been widely used in industries such as green irrigation, such as the self-rotating structures disclosed in CN117514167A, CN221386924U, CN220004478U and CN115846070A; it can also be a power-driven structure.

[0082] When the rotation of each nozzle 32 is driven by an additional power mechanism, referring to Figure 5 The rotation of the top nozzle 321 is driven by a power-driven structure, the first swing motor 3211 drives the rotation of the shell of the rotating joint through the first swing belt 3212, and three sub-nozzles are fixed to the shell of the rotating joint and the internal flow channels thereof are communicated with the internal flow channels of the rotating joint. The structure of the bottom nozzle 322 includes a second swing motor 3241 and a second swing belt 3242, which have the same structure and working principle as the top nozzle 321, and will not be repeated. The left nozzle 323 and the right nozzle 324 have the same structure, and the left nozzle 323 is taken as an example to illustrate that it includes a third swing motor 3221 and a rocker arm mechanism 3222, the rocker arm mechanism 3222 includes an eccentric rod 32221, a rocker arm 32222 and a swing arm 32223 which are hingedly connected in sequence, and the third swing motor 3221 drives the rotation of the eccentric rod 32221, the rocker arm 32222 and the swing arm 32223 in sequence, thereby driving the rotation of the corresponding shell of the rotating joint, thereby realizing swinging, and the swing amplitude, the starting position and the ending position of the swing can be parameterized designed by the length of the eccentric rod 32221, the rocker arm and the swing arm 32223 and the rotation angle of the third swing motor 3221.

[0083] In particular, the power mechanism driving the left nozzle 322 and the right nozzle 323 can be connected with the controller signal, so as to realize the width adjustment of the cleaning channel 52.

[0084] The inventor finds that when the spraying operation is not needed (such as when a batch of workpieces 6 is cleaned, etc.), the width of the cleaning channel 52 is reduced to less than the corresponding dimension of the workpiece 6, so as to partially close the cleaning channel 52, so that the workpiece 6 is blocked at the inlet 51, and one way to realize this idea is to continue referring to Figure 4 The left and right sides of the cleaning channel 52 are respectively provided with side plates 12 by floating installation of elastic members (not shown in the figure, which can be various springs); the controller is further configured to automatically adjust the spraying flow of the left nozzle 323 and the right nozzle 324 based on the width of the workpiece 6, and adjust the distance between the two side plates 12 by compressing the elastic members. For example, if it is detected that the width of the workpiece 6 is 15 cm, and the lower limit of the set width of the cleaning channel 52 can be slightly larger than 15 cm, such as a range of 15.5 cm ± 0.3 cm, so as to ensure the smooth passing of the workpiece 6, and the small gap between the workpiece 6 and the side plate 12 can also play a limiting and guiding role, preventing the workpiece 6 from being deflected.

[0085] In order to avoid the side plates 12 from blocking the cleaning liquid sprayed by the left nozzle 323 and the right nozzle 324, continue to refer to Figure 4 The side plates are provided with notches 121 at positions corresponding to the left nozzle 322 and the right nozzle 323, so that the cleaning liquid can be sprayed to the surface of the workpiece 6 through the notches 121, ensuring the cleaning effect. At the same time, in order to avoid the guiding effect of the workpiece 6 being reduced or lost due to the notches 121, a plurality of material blocking members 13 (such as ropes, etc.) of elongated structure are arranged at the notches 121, and the plurality of material blocking members 13 are kept apart, thereby providing space for the cleaning liquid jet to pass through.

[0086] In addition, the position to which the left nozzle 323 swings and the position to which the right nozzle 324 swings are mirror-symmetrical about the longitudinal section of the cleaning channel 52. The spraying liquid jet flowing out of the left nozzle 323 and the right nozzle 324 has the same impact on the workpiece 6, thereby being canceled in the transverse direction, so that the workpiece 6 can be stably kept on the conveying member 22, ensuring the cleaning effect.

[0087] A specific way of the clamping member 42 is shown in Figure 6, which includes a second motor 421, a second driving pulley 422, a second conveying belt 423 and a second driven pulley 424 connected in sequence and respectively installed on the clamping support 43. The second motor 421 drives the second driving pulley 422 to rotate, and the second conveying belt 423 drives the second driven pulley 424 to rotate. The second conveying belt 423 and the first conveying belt 213 press the workpiece 6 from the top and the bottom, respectively, so as to press the workpiece 6 therebetween. This pressing manner ensures that the workpiece 6 is stably pressed and the "slight shaking" is not lost, thereby further improving the cleaning effect.

[0088] Of course, it is known to those skilled in the art that the movement speed of the second conveying belt 423 can be substantially the same as that of the first conveying belt 213, so as to maintain a stable clamping effect; or the movement speed of the second conveying belt 423 can be slightly smaller than that of the first conveying belt 213 (for example, the ratio between them is 0.98-0.95), so as to increase the amplitude of the "slight shaking" and make the foreign matter, the spraying liquid and the mixture of the foreign matter and the spraying liquid attached to the workpiece 6 more thoroughly separated from the workpiece 6.

[0089] Continuing to refer to Figure 6 , the second driving pulley 422 is arranged at one end of the discharge port 53, and the second driven pulley 424 is arranged at one end of the feeding port 51. The second driving pulley 422 rotates from bottom to top, so that the second conveying belt 423 forms a tension side on the lower side and a slack side on the upper end. Therefore, the lower side of the second conveying belt 423 in contact with the workpiece 6 is always kept in a tension state, avoiding the accumulation of elastic recovery force after bending and stacking, which may suddenly release under certain working conditions (such as vibration) and exert sudden friction force on the workpiece 6 (which is extremely likely to drive the workpiece 6 to move at a different speed from the first conveying belt 213), thereby further ensuring the stable conveying of the workpiece 6 in the clamped state by the first conveying belt 213 and the second conveying belt 423.

[0090] Continuing to refer to Figure 2 and Figure 6 , the second conveying belt 423 is a plurality of belts and is arranged transversely and spaced apart. The gaps between the second conveying belts 423 facilitate the spraying liquid of the top nozzle to pass through and spray onto the surface of the workpiece 6.

[0091] One implementation of the clamping power unit 41 includes a push rod motor 411 and a clamping swing arm 412, wherein:

[0092] The first end of the clamping swing arm 412 is hinged to the rack 11, and the second end of the clamping swing arm 412 is hinged to the clamping support 43.

[0093] The push rod motor 411 drives the clamping swing arm 412 to rotate around the hinge shaft of the first end thereof, thereby driving the clamping swing arm 412 hinged to the second end thereof to rotate.

[0094] The clamping swing arms 412 arranged in one of the left and right sides are at least one, and the other side is at least two, which are driven to rotate around the intersection axis of the second end of the clamping swing arm 412 through the extension of the push rod motor 411, so as to adjust the distance between the clamping support 43 (the second conveying belt 423) and the first conveying belt 213, thereby adjusting the height of the conveying channel.

[0095] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A spray cleaning machine characterized by, The utility model relates to a cleaning device for workpiece, comprising: a rack; a conveying device comprising a conveying power unit and a conveying piece, the conveying piece being reciprocally movable from a feeding port to a discharging port under the driving of the conveying power unit and being installed on the rack; a spraying device comprising a spraying power unit, a nozzle, a container and a filter, a cleaning channel being formed between the feeding port and the discharging port, the spraying liquid in the container being sprayed to the surface of the workpiece conveyed to the cleaning channel through the nozzle under the driving of the spraying power unit, the inlet of the filter being arranged towards the dripping spraying liquid, and the outlet of the filter being communicated to the container; and a clamping device comprising a clamping power unit and a clamping piece, the clamping piece being located between the feeding port and the discharging port and being configured to clamp / release the workpiece in the cleaning channel under the driving of the clamping power unit. The conveying power unit comprises a first motor, a first driving pulley, a first conveying belt and a first driven pulley which are sequentially drivingly connected, wherein:

2. The in-line spray washer of claim 1, wherein, the first driving pulley is arranged at one end of the discharging port, and the first driven pulley is arranged at one end of the feeding port; the first conveying belt is a plurality of belts and is arranged in transverse direction with intervals. The first conveying belt is a round belt.

3. The in-line spray washer of claim 2 wherein, The nozzle comprises:

4. The in-line spray washer of claim 1 wherein, a top nozzle which is vertically located above the cleaning channel and is horizontally centered, the top nozzle being a 360° rotary nozzle; a left nozzle and a right nozzle which are arranged on the left and right sides of the cleaning channel in horizontal direction, respectively, and are vertically arranged at the same height as the workpiece on the conveying piece, the left nozzle and the right nozzle being rotary nozzles which can reciprocally swing within a range of not more than 180°; and a bottom nozzle which is vertically located below the cleaning channel and is horizontally centered, the bottom nozzle being a 360° rotary nozzle. The top nozzle comprises a first swing motor, a first swing belt and a rotary joint, wherein:

5. The in-line spray washer of claim 4 wherein, the first swing motor drives the shell of the rotary joint to rotate through the first swing belt; the internal cavities of at least two sub-nozzles fixed to the shell of the rotary joint are communicated with the internal flow channel of the rotary joint. The bottom nozzle comprises a second swing motor, a second swing belt and a rotary joint, wherein:

6. The in-line spray washer of claim 4 wherein, the second swing motor drives the shell of the rotary joint to rotate through the second swing belt; the internal cavities of at least two sub-nozzles fixed to the shell of the rotary joint are communicated with the internal flow channel of the rotary joint. The left nozzle comprises a third swing motor and a rocker arm mechanism, wherein:

7. The in-line spray washer of claim 4 wherein, the rocker arm mechanism comprises an eccentric rod, a rocker arm and a swing arm which are sequentially hinged, the eccentric rod is eccentrically hinged to the power output end of the third swing motor, and the swing arm is hinged to the shell of the rotary joint of the left nozzle at one end of the rocker arm. The position to which the left nozzle swings and the position to which the right nozzle swings are mirror-symmetrical about the longitudinal section of the cleaning channel.

8. The in-line spray washer of claim 7 wherein, The clamping piece comprises a second motor, a second driving pulley, a second conveying belt and a second driven pulley which are sequentially drivingly connected and are respectively installed on a clamping support, wherein:

9. The in-line spray washer of any one of claims 1 to 8, wherein, ​ The second driving pulley is arranged at one end of the discharge port, and the second driven pulley is arranged at one end of the feeding port. The second conveying belt is multiple and arranged transversely and spaced.

10. The in-line spray washer of claim 9 wherein, The clamping power unit comprises a push rod motor and a clamping swing arm, wherein: The first end of the clamping swing arm is hinged to the frame, and the second end of the clamping swing arm is hinged to the clamping support. The push rod motor drives the clamping swing arm to rotate around the hinge shaft of the first end, thereby driving the clamping swing arm hinged to the second end to rotate.

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