Dry ice cleaning machine and using method thereof

Abstract

The invention discloses a dry ice cleaning machine and a using method thereof, and relates to the technical field of cleaning, the dry ice cleaning machine comprises a machine body, a feeding conveying line, a discharging conveying line, a carrier used for bearing workpieces, a positioning jacking mechanism, a dry ice cleaning mechanism and a transfer carrying mechanism; the feeding conveying line is used for conveying a carrier carrying a workpiece to the positioning jacking mechanism; the positioning jacking mechanism is used for positioning and fixing the carrier; the dry ice cleaning mechanism is used for cleaning the workpiece positioned and fixed by the positioning and jacking mechanism; the discharging conveying line is used for outputting the cleaned workpieces. The middle transfer mechanism is used for synchronously transferring the carriers and the workpieces at the tail end of the feeding conveying line to the discharging conveying line so that transferring and normal discharging of the workpieces can be achieved. By the adoption of the technical scheme, feeding, positioning, cleaning, transferring and discharging of workpieces can be completed, automatic cleaning of the workpieces is achieved, the workpieces can be accurately positioned and stably fixed, and therefore the cleaning effect and the cleaning quality of the workpieces are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dry ice cleaning machines, and in particular to a dry ice cleaning machine and a method for using the same. Background Art

[0002] Dry ice cleaning technology uses solid carbon dioxide (dry ice) to impact surfaces under high-pressure airflow. This technology removes dirt through a triple effect: thermal stripping (-78.5°C embrittles contaminants), sublimation expansion (dry ice vaporization generates micro-explosive force), and kinetic impact. It offers the advantages of being chemical-free, contactless, and environmentally friendly. This technology has been gradually adopted in the electronics manufacturing industry, for example, for cleaning precision components such as PCBA circuit boards and flexible OLED panel wiring areas. It effectively removes flux residue, tin beads, and fine dust contaminants, while avoiding the scratches, corrosion, and VOC emissions associated with traditional brushes or chemical solvents.

[0003] In the related art, dry ice cleaning methods include manual dry ice cleaning and dry ice cleaning device cleaning. Manual dry ice cleaning means that the staff cleans the workpiece with a handheld dry ice spray gun, and dry ice cleaning device cleaning means that the workpiece is cleaned by a dry ice cleaning device. The existing dry ice cleaning device mainly includes a frame, a conveying mechanism and a dry ice cleaning mechanism. During cleaning, the conveying mechanism transports the workpiece to be cleaned to the dry ice cleaning mechanism, and the dry ice cleaning mechanism cleans the workpiece to be cleaned. After cleaning is completed, the conveying mechanism transports the workpiece to be unloaded.

[0004] However, manual dry ice cleaning is not only inefficient, but also difficult to ensure consistent cleaning quality. When using a dry ice cleaning device for cleaning, since the dry ice cleaning device mainly relies on a conveying mechanism to position and fix the workpiece, it is difficult to achieve precise positioning and firm fixation of the workpiece, resulting in poor cleaning effect and low cleaning quality. Summary of the Invention

[0005] The purpose of this application is to provide a dry ice cleaning machine and a method of using the same, which can achieve precise positioning and firm fixation of workpieces, thereby improving the cleaning effect and cleaning quality.

[0006] In one aspect, the present invention provides a dry ice cleaning machine, which adopts the following technical solution: a dry ice cleaning machine comprising a machine body, a loading conveyor line and a unloading conveyor line disposed on the machine body, a carrier disposed on the loading conveyor line for carrying workpieces, a positioning and lifting mechanism disposed on the loading conveyor line, a dry ice cleaning mechanism located above the positioning and lifting mechanism, and an intermediate transfer mechanism disposed between the loading conveyor line and the unloading conveyor line; The loading conveyor line is used to convey the carrier carrying the workpiece to the positioning and lifting mechanism; The positioning and jacking mechanism is used to position and fix the carrier, including a first positioning frame fixed to the machine body, a first positioning frame installed on the positioning frame, a jacking plate liftably arranged on the first positioning frame and located below the positioning plate, and a jacking cylinder for driving the jacking plate to rise and fall, the positioning plate is located above the feeding conveyor line, and a gap is formed between the two for the carrier carrying the workpiece to pass through, the positioning plate is provided with a through hole adapted to the workpiece, and the jacking cylinder is used to drive the jacking plate to rise and fall vertically relative to the positioning frame, so that the jacking plate can lift the carrier in the gap upward, so that the workpiece on the carrier passes through the through hole of the positioning plate and at least partially protrudes from the upper surface of the positioning plate; The dry ice cleaning mechanism is used to clean the workpiece after it is positioned and fixed by the positioning and lifting mechanism; The intermediate transfer mechanism is used to synchronously transfer the carrier and workpiece at the end of the loading conveyor line to the unloading conveyor line to achieve the transfer and normal unloading of the workpiece; The unloading conveying line is used to output the workpieces after cleaning.

[0007] Optionally, the positioning and lifting mechanism also includes a second positioning frame fixed on the machine body, a feed sensor provided on the second positioning frame, and a cleaning blocking assembly provided on the second positioning frame. The second positioning frame is located on the side of the first positioning frame facing the intermediate transfer mechanism. The feed sensor is used to sense whether the carrier enters the gap between the feeding conveyor line and the positioning plate. The cleaning blocking assembly is used to block the carrier entering the gap so that the lifting plate can lift the carrier smoothly.

[0008] Optionally, the cleaning and blocking assembly includes a mounting plate fixedly mounted on the second positioning frame, a blocking bracket mounted on the mounting plate, a blocking rod hingedly connected to the blocking bracket, a blocking wheel mounted on the blocking rod, and a cleaning and blocking cylinder for driving the blocking rod to rotate relative to the blocking bracket so that the blocking wheel blocks the carrier; When the feed sensor to the carrier enters the gap between the positioning plate and the loading conveyor line, the cleaning blocking cylinder drives the blocking rod to rotate relative to the blocking bracket, driving the blocking rod to rotate, so that the blocking wheel can block and limit the carrier.

[0009] Optionally, a plurality of positioning columns are provided on the lifting plate, and corresponding positioning grooves cooperating with the positioning columns are provided on the carrier.

[0010] Optionally, the dry ice cleaning mechanism includes a dry ice cleaning bracket fixed on a frame, a dry ice cleaning spray gun arranged on the dry ice cleaning bracket, and a three-axis moving module for driving the dry ice cleaning spray gun to move.

[0011] Optionally, the intermediate transfer mechanism includes a first lifting seat provided at the end of the loading conveyor line for lifting the carrier relative to the loading conveyor line, a second lifting seat provided at the starting end of the unloading conveyor line for receiving the carrier, a transfer assembly provided between the loading conveyor line and the unloading conveyor line for transferring the carrier on the first lifting seat to the second lifting seat, and a first lifting cylinder and a second lifting cylinder for driving the first lifting seat and the second lifting seat to vertically lift and lower respectively.

[0012] Optionally, the transfer assembly includes a transfer track arranged between the loading conveyor line and the unloading conveyor line, a push plate arranged above the transfer track, and a transfer cylinder for driving the push plate to move back and forth between the loading conveyor line and the unloading conveyor line to push the carrier on the first lifting seat to the second lifting seat via the transfer track.

[0013] Optionally, a chamber is opened inside the machine body, and a loading port and a unloading port connected to the chamber are opened on the side wall of the machine body, the loading port and the unloading port are located on the same side of the machine body, the loading conveyor line is arranged parallel to the unloading conveyor line, the starting end of the loading conveyor line is located at the loading port, the end of the loading conveyor line extends into the chamber, the starting end of the unloading conveyor line is located at the end of the loading conveyor line, and the end of the unloading conveyor line extends to the unloading port.

[0014] Optionally, a cleaning cover and a waste residue chamber connected to the cleaning cover are provided in the machine body, and the positioning jacking mechanism, the dry ice cleaning mechanism, the end of the loading conveyor line and the beginning of the unloading conveyor line are all accommodated in the cleaning cover; The waste residue chamber is located below the cleaning cover. A blower is provided in the waste residue chamber to suck the residue and residual glue dropped during cleaning into a preset position through the blower.

[0015] The present application also provides a method for using a dry ice cleaning machine, based on the dry ice cleaning machine described above, comprising the following steps: Place the carrier carrying the workpiece on the loading conveyor line through the loading port to complete the loading of the workpiece; The carrier and the workpiece are transported to the positioning and lifting mechanism through the loading conveyor line. The positioning and lifting mechanism positions the carrier and lifts the carrier at the same time, so that the workpiece on the carrier passes through the through hole of the positioning plate and protrudes from the upper surface of the positioning plate; The dry ice cleaning mechanism cleans the workpiece. After the cleaning is completed, the positioning jacking mechanism drives the carrier down and returns the carrier to the loading conveyor line. The loading conveyor line transports the carrier to the end of the loading conveyor line, the intermediate transfer mechanism transfers the carrier to the unloading conveyor line, and the unloading conveyor line transports the carrier to the unloading port to complete the unloading of the workpiece.

[0016] After adopting the above technical solution, the beneficial effects of the present invention are: During cleaning, the present application transports the carrier carrying the workpiece to the bottom of the positioning plate through the loading conveyor line, and the lifting cylinder drives the lifting plate to position the carrier. The carrier is then lifted so that the workpiece on the carrier passes through the through hole of the positioning plate and protrudes from the upper surface of the positioning plate, thereby achieving precise positioning of the workpiece. At this time, the workpiece is cleaned by the dry ice cleaning mechanism. Since the workpiece has been precisely positioned and firmly fixed, the cleaning effect is better and the consistency of the cleaning quality is also higher. After cleaning is completed, the lifting cylinder drives the carrier to descend, so that the carrier and the workpiece return to the loading conveyor line. Subsequently, the loading conveyor line continues to transport the carrier and the workpiece until they reach the end of the loading conveyor line. Finally, the carrier and the workpiece are synchronously transferred to the unloading conveyor line through the intermediate transfer mechanism, and the unloading conveyor line is used to transport and unload the cleaned workpiece, thereby completing the loading, positioning, cleaning, transfer and unloading of the workpiece, thereby achieving automated cleaning of the workpiece. Compared with the existing dry ice cleaning method, the present application can achieve precise positioning and firm fixation of the workpiece, thereby improving the cleaning effect and cleaning quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 Schematic diagram of the overall structure of this embodiment; Figure 2 This is a diagram showing the embodiment after the housing is removed; Figure 3 yes Figure 2 Display picture after removing the cleaning cover; Figure 4 This is a schematic diagram showing the positional relationship between the loading conveyor line, the unloading conveyor line, the positioning and lifting mechanism, the dry ice cleaning mechanism, and the intermediate transfer mechanism in this embodiment; Figure 5 This is a schematic diagram showing the positional relationship between the loading blocking assembly, the unloading blocking assembly, the RFID detector, the loading conveyor line, and the unloading conveyor line in this embodiment; Figure 6 It is a schematic diagram used to reflect the coordination relationship between the positioning and lifting mechanism and the feeding conveyor line; Figure 7 yes Figure 6 Enlarged view of part A; Figure 8This is a schematic diagram illustrating the coordination relationship between the positioning plate, the carrier, the workpiece, and the cleaning blocking mechanism in this embodiment; Figure 9 is a diagram showing the carrier and workpiece in this embodiment; Figure 10 This is a diagram showing the dry ice cleaning mechanism in this embodiment; Figure 11 This is a schematic diagram illustrating the coordination relationship between the intermediate transfer mechanism, the loading conveyor line, and the unloading conveyor line in this embodiment; Figure 12 is a flow chart of a method for using the dry ice cleaning machine provided in this embodiment; Figure 13 This is a flowchart between step 101 and step 102 in this embodiment.

[0019] Explanation of reference numerals: 100, machine body; 101, loading port; 102, unloading port; 103, cleaning cover; 104, waste residue chamber; 105, blower; 10, loading conveyor line; 11, loading blocking assembly; 12, RFID detector; 20, unloading conveyor line; 21, unloading blocking assembly; 30, carrier; 31, positioning groove; 40, workpiece; 50, positioning and lifting mechanism; 51, first positioning frame; 52, positioning plate; 521, through hole; 53, lifting plate; 531, positioning column; 54, lifting cylinder; 55, second positioning frame; 56 , feeding sensor; 57, cleaning blocking assembly; 571, mounting plate; 572, blocking bracket; 573, blocking rod; 574, blocking wheel; 575, cleaning blocking cylinder; 60, dry ice cleaning mechanism; 61, dry ice cleaning bracket; 62, dry ice cleaning spray gun; 63, three-axis moving module; 70, intermediate transfer mechanism; 71, first lifting seat; 72, second lifting seat; 73, transfer assembly; 731, transfer track; 732, push plate; 733, transfer cylinder; 74, first lifting cylinder; 75, second lifting cylinder; 80, control mechanism. DETAILED DESCRIPTION

[0020] The following is a combination of the embodiments of the present invention Figures 1-13 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] This embodiment provides a dry ice cleaning machine. Figures 1-13 The dry ice cleaning device includes a machine body 100, a loading conveyor line 10 and a unloading conveyor line 20 arranged on the machine body 100, a carrier 30 arranged on the loading conveyor line 10 for carrying a workpiece 40, a positioning and lifting mechanism 50 configured on the loading conveyor line 10, a dry ice cleaning mechanism 60 located above the positioning and lifting mechanism 50, and an intermediate transfer mechanism 70 arranged between the loading conveyor line 10 and the unloading conveyor line 20.

[0024] Among them, a chamber is opened inside the body 100, and a loading port 101 and a loading port 102 connected to the chamber are opened on the side wall of the body 100. In this embodiment, the loading port 101 and the loading port 102 are located on the same side of the body 100. In other embodiments, the loading port 101 and the loading port 102 can be correspondingly set on different sides or other positions of the body 100 according to actual conditions, and no further limitations are made here.

[0025] The loading conveyor line 10 is used to transport the carrier 30 carrying the workpiece 40 to the positioning and lifting mechanism 50, and the unloading conveyor line 20 is used to output the workpiece 40 after cleaning. The loading conveyor line 10 is arranged parallel to the unloading conveyor line 20, and the starting end of the loading conveyor line 10 and the end of the unloading conveyor line 20 are respectively located at the loading port 101 and the unloading port 102, and the end of the loading conveyor line 10 and the starting end of the unloading conveyor line 20 are both located in the chamber.

[0026] It should be noted that in this embodiment, the workpiece 40 is a carrier plate. In other embodiments, the workpiece 40 can also be other items, and the workpiece 40 is fixed on the carrier 30. During the loading, positioning, cleaning, transferring, and unloading processes, the carrier 30 and the workpiece 40 move synchronously and will not separate.

[0027] The positioning and lifting mechanism 50 is used to position and fix the carrier 30, the dry ice cleaning mechanism 60 is used to clean the workpiece 40 after being positioned and fixed by the positioning and lifting mechanism 50, and the intermediate transfer mechanism 70 is used to synchronously transfer the carrier 30 and the workpiece 40 at the end of the loading conveyor line 10 to the unloading conveyor line 20 to realize product transfer and normal unloading.

[0028] During cleaning, the carrier 30 carrying the workpiece 40 is first placed on the loading conveyor line 10, and the carrier 30 is transported to the positioning and lifting mechanism 50 through the loading conveyor line 10. The positioning and lifting mechanism 50 positions and fixes the carrier 30, and then the workpiece 40 on the carrier 30 is cleaned by the dry ice cleaning mechanism 60. After cleaning is completed, the positioning and lifting mechanism 50 returns to its initial state, so that the carrier 30 returns to the loading conveyor line 10. When the loading conveyor line 10 transports the carrier 30 to the end of the loading conveyor line 10, the intermediate transfer mechanism 70 transfers the carrier 30 at the end of the loading conveyor line 10 to the unloading conveyor line 20, and finally the unloading conveyor line 20 outputs the carrier 30 for unloading, thereby completing the loading, positioning, cleaning, transferring and unloading processes of the workpiece 40, and realizing automatic cleaning of the workpiece 40.

[0029] In addition, in order to improve the cleaning effect and prevent dry ice from splashing during the cleaning process, a cleaning cover 103 is provided in the cavity of the machine body 100, and the positioning lifting mechanism 50, the dry ice cleaning mechanism 60, the end of the loading conveyor line 10 and the beginning of the unloading conveyor line 20 and the intermediate transfer mechanism 70 are all accommodated in the cleaning cover 103.

[0030] In some preferred embodiments, a waste residue chamber 104 is further provided in the body 100, and a blower 105 is provided in the waste residue chamber 104. The blower 105 is located below the cleaning cover 103, and the bottom side of the cavity corresponding to the cleaning cover 103 is connected to the waste residue chamber 104, so that the residue and residual glue dropped during cleaning can be sucked into a preset position through the blower 105.

[0031] Furthermore, the positioning and lifting mechanism 50 includes a first positioning frame 51 fixed on the machine body 100, a positioning plate 52 installed on the first positioning frame 51, a lifting plate 53 that can be lifted and lowered on the first positioning frame 51 and located below the positioning plate 52, and a lifting cylinder 54 for driving the lifting plate 53, wherein the positioning plate 52 is located above the loading conveyor line 10, and a gap is formed between the positioning plate 52 and the loading conveyor line 10 for the carrier 30 carrying the workpiece 40 to pass through. A through hole 521 adapted to the workpiece 40 is provided on the positioning plate 52, and the lifting cylinder 54 is used to drive the lifting plate 53 to rise and fall vertically relative to the positioning frame, so that the lifting plate 53 can lift the carrier 30 in the gap upward, so that the workpiece 40 on the carrier 30 passes through the through hole 521 of the positioning plate 52 and at least partially protrudes from the upper surface of the positioning plate 52.

[0032] As will be appreciated, when the loading conveyor line 10 transports the carrier 30 carrying the workpiece 40 to the gap between the lifting plate 53 and the loading conveyor line 10, the lifting plate 53 is driven upward by the lifting cylinder 54. When the carrier 30 is lifted by the lifting plate 53, the workpiece 40 passes through the through hole 521 and at least partially protrudes from the top surface of the positioning plate 52, achieving precise positioning of the workpiece 40. This not only improves positioning accuracy but also effectively prevents shaking or misalignment of the workpiece 40 during the cleaning process, ensuring a consistent and stable cleaning effect.

[0033] It should be noted that the loading conveyor line 10 and the unloading conveyor line 20 have the same structure, both including two symmetrically and parallelly arranged conveyor belts. There is a certain distance between the two conveyor belts. The width of the carrier 30 is greater than the distance between the two conveyor belts, so that the two conveyor belts can transport the carrier 30. At the same time, the width of the lifting plate 53 is smaller than the distance, so that the lifting plate 53 can pass through the gap upward and lift the carrier 30.

[0034] Furthermore, the positioning and lifting mechanism 50 also includes a second positioning frame 55 fixed on the machine body 100, a feed sensor 56 provided on the second positioning frame 55, and a cleaning blocking assembly 57 provided on the second positioning frame 55. The second positioning frame 55 is located on the side of the first positioning frame 51 facing the intermediate transfer mechanism 70. The feed sensor 56 is used to sense whether the carrier 30 enters the gap between the loading conveyor line 10 and the positioning plate 52. The cleaning blocking assembly 57 is used to block the carrier 30 entering the gap so that the lifting plate 53 can smoothly lift the carrier 30.

[0035] As can be understood, when carrier 30 is transported by loading conveyor line 10 to a position close to positioning plate 52, feed sensor 56 sensitively senses the presence of carrier 30 and immediately issues a signal. At this point, cleaning block assembly 57 quickly responds, appropriately blocking carrier 30 and preventing it from moving forward or deviating due to inertia during the ascent of lifting plate 53. This not only enhances the stability of the lifting process but also further improves the accuracy of workpiece 40 positioning, laying a solid foundation for subsequent dry ice cleaning steps.

[0036] Furthermore, the cleaning blocking assembly 57 includes a mounting plate 571 fixed on the second positioning plate 52, a blocking bracket 572 provided on the mounting plate 571, a blocking rod 573 hinged on the blocking bracket 572, a blocking wheel 574 provided on the blocking rod 573, and a cleaning blocking cylinder 575 for driving the blocking rod 573 to rotate relative to the blocking bracket 572 so that the blocking wheel 574 blocks the carrier 30.

[0037] When the feeding sensor 56 senses that the carrier 30 is in the gap between the positioning plate 52 and the loading conveyor line 10, the cleaning blocking cylinder 575 is actuated and drives the blocking rod 573 to rotate relative to each other, driving the blocking rod 573 to rotate, so that the blocking wheel 574 on the blocking rod 573 can block and limit the carrier 30.

[0038] It should be noted that when the blocking wheel 574 abuts against the outside of the carrier 30 and blocks and limits the carrier 30, the loading conveyor line 10 will stop running. At the same time, the lifting plate 53 starts to rise and steadily lifts the carrier 30 to a preset height.

[0039] In some preferred embodiments, a loading blocking assembly 11 and a unloading blocking assembly 21 are also provided on the loading conveyor line 10 and the unloading conveyor line 20. The loading blocking assembly 11 and the unloading blocking assembly 21 are both located outside the cleaning cover 103. The loading blocking assembly 11 and the unloading blocking assembly 21 have the same structure as the cleaning blocking assembly 57, and the loading blocking assembly 11 is used to block the carrier 30 on the loading conveyor line 10, and the unloading blocking assembly 21 is used to block the carrier 30 on the unloading conveyor line 20. When the loading conveyor line 10 transports the carrier 30 to the positioning and lifting mechanism 50 in the cleaning cover 103, the loading blocking assembly 11 blocks the carrier 30 outside the cleaning cover 103 to prevent two or more carriers 30 from entering the cleaning cover 103 at the same time. When the unloading conveyor line 20 transports the carrier 30 out of the cleaning cover 103, the unloading blocking assembly 21 blocks the carrier 30 to prevent multiple carriers 30 from being transported to the unloading port 102 at the same time, causing the unloading port 102 to be blocked.

[0040] In addition, a FRID detector 12 is provided below the loading conveyor line 10. The FRID detector 12 is located between the loading port 101 and the loading blocking assembly 11. The detection end of the FRID detector 12 is set upward, and the FRID detector 12 is used to detect and identify the carrier 30 to ensure that each carrier 30 undergoes strict identity verification before entering the cleaning process.

[0041] Furthermore, the dry ice cleaning mechanism 60 includes a dry ice cleaning bracket 61 fixed on the frame, a dry ice cleaning gun 62 provided on the dry ice cleaning bracket 61 , and a three-axis moving module 63 for driving the dry ice cleaning gun 62 to move.

[0042] The dry ice cleaning lance 62 is used to spray dry ice particles uniformly and at high speed onto the surface of the workpiece 40. The three-axis motion module 63 is responsible for controlling the precise movement of the dry ice cleaning lance 62 in three dimensions, achieving comprehensive cleaning of the complex surface of the workpiece 40. Furthermore, the dry ice cleaning mechanism 60 is equipped with an intelligent control system that automatically adjusts the spray speed and volume of dry ice based on the material, size, and cleaning requirements of the workpiece 40 to achieve the optimal cleaning effect. Since the dry ice cleaning lance 62 and the three-axis motion module 63 are conventional techniques in the art and are not improvements of this application, they will not be described in detail in this application.

[0043] Furthermore, the intermediate transfer mechanism 70 includes a first lifting seat 71 provided at the end of the loading conveyor line 10 for lifting the carrier 30 relative to the loading conveyor line 10, a second lifting seat 72 provided at the starting end of the unloading conveyor line 20 for receiving the carrier 30, a transfer assembly 73 provided on the loading conveyor line 10 and the unloading conveyor line 20 and used for transferring the carrier 30 on the first lifting seat 71 to the second lifting seat 72, and a first lifting cylinder 74 and a second lifting cylinder 75 for respectively driving the first lifting seat 71 and the second lifting seat 72 to rise and fall vertically.

[0044] When the carrier 30 is delivered to the end of the loading conveyor line 10, the first lifting cylinder 74 drives the first lifting seat 71 upward, lifting the carrier 30. The transfer assembly 73 then activates, smoothly transferring the carrier 30 from the first lifting seat 71 to the second lifting seat 72. Next, the second lifting cylinder 75 drives the second lifting seat 72 downward, placing the carrier 30 on the unloading conveyor line 20, completing the transfer process. This not only improves cleaning efficiency but also ensures the stability and safety of the carrier 30 during the transfer process.

[0045] Furthermore, the transfer assembly 73 includes a transfer rail 731 provided at the end of the loading conveyor line 10 and the beginning of the unloading conveyor line 20, a push plate 732 provided above the transfer rail 731, and a transfer cylinder 733 for driving the push plate 732 to move back and forth between the loading conveyor line 10 and the unloading conveyor line 20 to push the carrier 30 on the first lifting seat 71 to the second lifting seat 72 via the transfer rail 731.

[0046] After the first lifting seat 71 lifts the carrier 30, the push plate 732 moves to the top of the first lifting seat 71 and gently pushes the carrier 30 onto the transfer track 731. Subsequently, the push plate 732 continues to move along the transfer track 731, pushing the carrier 30 smoothly onto the second lifting seat 72. The entire transfer process is smooth and fast, ensuring the stability and safety of the carrier 30 during the transfer process. At the same time, the design of the transfer track 731 makes the transfer path more direct and efficient, further improving the cleaning efficiency. Compared with the traditional manipulator transfer method, the transfer transfer mechanism 70 of the present application has a compact structure, occupies little space, is suitable for various production environments, and reduces production costs.

[0047] Furthermore, the dry ice cleaning machine provided in the present application also includes a control mechanism 80, and the loading conveyor line 10, the unloading conveyor line 20, the positioning and lifting mechanism 50, the dry ice cleaning mechanism 60 and the intermediate transfer mechanism 70 are all electrically connected to the control mechanism 80, so that the control mechanism 80 controls the coordinated work of the above-mentioned mechanisms to realize automatic cleaning of the workpiece 40.

[0048] The present application also provides a method for using a dry ice cleaning machine, based on the dry ice cleaning machine described above, comprising the following steps: Step 101 , placing the carrier 30 carrying the workpiece 40 on the loading conveyor line 10 through the loading port 101 to complete loading of the workpiece 40 ; Step 102: The carrier 30 and the workpiece 40 are transported to the positioning and lifting mechanism 50 via the loading conveyor line 10. The positioning and lifting mechanism 50 positions the carrier 30 and simultaneously lifts the carrier 30 so that the workpiece 40 on the carrier 30 passes through the through hole 521 of the positioning plate 52 and at least partially protrudes from the upper surface of the positioning plate 52. Step 103: The dry ice cleaning mechanism 60 cleans the workpiece 40. After the cleaning is completed, the positioning and lifting mechanism 50 drives the carrier 30 to descend, so that the carrier 30 returns to the loading conveyor line 10. In step 104 , the loading conveyor line 10 conveys the carrier 30 to the end of the loading conveyor line 10 , the intermediate transfer mechanism 70 transfers the carrier 30 to the unloading conveyor line 20 , and the unloading conveyor line 20 conveys the carrier 30 to the unloading port 102 , completing unloading of the workpiece 40 .

[0049] Furthermore, between step 101 and step 102, the following steps are further included: Step 1011, the carrier 30 on the loading conveyor line 10 is blocked by the loading blocking component 11, and the control mechanism 80 synchronously controls the loading conveyor line 10 to stop running. At the same time, the RFID detector 12 scans the RFID information on the carrier 30 and transmits the RFID information to the control mechanism 80 to confirm the identity information and cleaning requirements of the carrier 30.

[0050] Step 1012: After the RFID information is scanned and processed, the control mechanism 80 controls the loading blocking assembly 11 to move away, and the loading conveyor line 10 continues to run and transports the carrier 30 and the workpiece 40 to the positioning and lifting mechanism 50 in the cleaning cover 103 for subsequent operations.

[0051] In this embodiment, after the RFID detector 12 scans the RFID information on the carrier 30, the control mechanism 80 first decodes and verifies the RFID information. If the RFID information matches the information in a preset database, the control mechanism 80 automatically adjusts the parameters of the dry ice cleaning mechanism 60, such as the cleaning time and dry ice spray volume, based on the carrier 30's identity information and cleaning requirements to ensure optimal cleaning results and efficiency. If the RFID information is incorrect or missing, the control mechanism 80 immediately issues an alarm and pauses the entire cleaning process, pending manual intervention and correction. This design not only increases the automation level of the cleaning process but also significantly enhances operational safety and accuracy.

[0052] Working Principle: When the loading conveyor line 10 receives a carrier 30 carrying a workpiece 40, it automatically transports the carrier 30 and workpiece 40 to the positioning and lifting mechanism 50. The positioning and lifting mechanism 50 precisely positions and secures the carrier 30, while also lifting it to ensure that the workpiece 40 can pass through the through-hole 521 of the positioning plate 52 and at least partially protrude above the upper surface of the positioning plate 52. The dry ice cleaning mechanism 60 then activates, efficiently and accurately cleaning the workpiece 40. After cleaning is complete, the positioning and lifting mechanism 50 returns to its initial position, driving the carrier 30 downward and returning it to the loading conveyor line 10. The loading conveyor line 10 then transports the carrier 30 to the end, where the intermediate transfer mechanism 70 intervenes to smoothly transfer the carrier 30 to the unloading conveyor line 20. Finally, the unloading conveyor line 20 transports the carrier 30 and the cleaned workpiece 40 to the unloading port 102, completing the cleaning process. This process fully embodies the characteristics of automation and intelligence, greatly improving cleaning efficiency and quality.

[0053] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A dry ice cleaning machine, characterized in that: The invention comprises a machine body (100), a loading conveyor line (10) and a unloading conveyor line (20) arranged on the machine body (100), a carrier (30) arranged on the loading conveyor line (10) for carrying a workpiece (40), a positioning and lifting mechanism (50) arranged on the loading conveyor line (10), a dry ice cleaning mechanism (60) located above the positioning and lifting mechanism (50), and an intermediate transfer mechanism (70) arranged between the loading conveyor line (10) and the unloading conveyor line (20); The loading conveyor line (10) is used to convey the carrier (30) carrying the workpiece (40) to the positioning and lifting mechanism (50); The positioning and lifting mechanism (50) is used to position and fix the carrier (30), and includes a first positioning frame (51) fixed on the machine body (100), a positioning plate (52) installed on the first positioning frame (51), a lifting plate (53) movably arranged on the first positioning frame (51) and located below the positioning plate (52), and a lifting cylinder (54) for driving the lifting plate (53) to move. The positioning plate (52) is located above the feeding conveyor line (10). A gap is formed between the carrier (30) carrying the workpiece (40) and the positioning plate (52), and a through hole (521) adapted to the workpiece (40) is provided on the positioning plate (52). The lifting cylinder (54) is used to drive the lifting plate (53) to vertically lift relative to the positioning frame, so that the lifting plate (53) can lift the carrier (30) in the gap upward, so that the workpiece (40) on the carrier (30) passes through the through hole (521) of the positioning plate (52) and at least partially protrudes from the upper surface of the positioning plate (52); The dry ice cleaning mechanism (60) is used to clean the workpiece (40) after being positioned and fixed by the positioning and lifting mechanism (50); The intermediate transfer mechanism (70) is used to synchronously transfer the carrier (30) and the workpiece (40) at the end of the loading conveyor line (10) to the unloading conveyor line (20) to achieve the transfer and normal unloading of the workpiece (40); The unloading conveying line (20) is used to output the workpiece (40) after cleaning.

2. The dry ice cleaning machine according to claim 1, characterized in that: The positioning and lifting mechanism (50) further comprises a second positioning frame (55) fixedly mounted on the machine body (100), a feeding sensor (56) mounted on the second positioning frame (55), and a cleaning and blocking assembly (57) mounted on the second positioning frame (55). The second positioning frame (55) is located on a side of the first positioning frame (51) facing the intermediate transfer mechanism (70). The feeding sensor (56) is used to sense whether the carrier (30) enters the gap between the feeding conveyor line (10) and the positioning plate (52). The cleaning and blocking assembly (57) is used to block the carrier (30) that enters the gap so that the lifting plate (53) can smoothly lift the carrier (30).

3. The dry ice cleaning machine according to claim 2, characterized in that: The cleaning blocking assembly (57) comprises a mounting plate (571) fixedly mounted on the second positioning frame (55), a blocking bracket (572) mounted on the mounting plate (571), a blocking rod (573) hingedly connected to the blocking bracket (572), a blocking wheel (574) mounted on the blocking rod (573), and a cleaning blocking cylinder (575) for driving the blocking rod (573) to rotate relative to the blocking bracket (572) so that the blocking wheel (574) blocks the carrier (30). When the feeding sensor (56) to the carrier (30) enters the gap between the positioning plate (52) and the feeding conveyor line (10), the cleaning blocking cylinder (575) drives the blocking rod (573) to rotate relative to the blocking bracket (572), driving the blocking rod (573) to rotate, so that the blocking wheel (574) can block and limit the carrier (30).

4. The dry ice cleaning machine according to claim 2, characterized in that: The lifting plate (53) is provided with a plurality of positioning columns (531), and the carrier (30) is correspondingly provided with positioning grooves (31) that cooperate with the positioning columns (531).

5. The dry ice cleaning machine according to claim 1, characterized in that: The dry ice cleaning mechanism (60) comprises a dry ice cleaning bracket (61) fixedly mounted on a frame, a dry ice cleaning spray gun (62) mounted on the dry ice cleaning bracket (61), and a three-axis moving module (63) for driving the dry ice cleaning spray gun (62) to move.

6. The dry ice cleaning machine according to claim 1, characterized in that: The intermediate transfer mechanism (70) comprises a first lifting seat (71) provided at the end of the loading conveyor line (10) for lifting the carrier (30) relative to the loading conveyor line (10), a second lifting seat (72) provided at the beginning of the unloading conveyor line (20) for receiving the carrier (30), a transfer assembly (73) provided between the loading conveyor line (10) and the unloading conveyor line (20) for transferring the carrier (30) on the first lifting seat (71) to the second lifting seat (72), and a first lifting cylinder (74) and a second lifting cylinder (75) for respectively driving the first lifting seat (71) and the second lifting seat (72) to vertically lift.

7. The dry ice cleaning machine according to claim 6, characterized in that: The transfer assembly (73) includes a transfer track (731) provided between the loading conveyor line (10) and the unloading conveyor line (20), a push plate (732) provided above the transfer track (731), and a transfer cylinder (733) for driving the push plate (732) to move back and forth between the loading conveyor line (10) and the unloading conveyor line (20) so as to push the carrier (30) on the first lifting seat (71) to the second lifting seat (72) via the transfer track (731).

8. The dry ice cleaning machine according to claim 1, characterized in that: A chamber is provided inside the machine body (100), and a loading port (101) and a unloading port (102) communicating with the chamber are provided on a side wall of the machine body (100), the loading port (101) and the unloading port (102) are located on the same side of the machine body (100), the loading conveyor line (10) and the unloading conveyor line (20) are arranged in parallel, the starting end of the loading conveyor line (10) is located at the loading port (101), and the end of the loading conveyor line (10) extends into the chamber, the starting end of the unloading conveyor line (20) is located at the end of the loading conveyor line (10), and the end of the unloading conveyor line (20) extends to the unloading port (102).

9. The dry ice cleaning machine according to claim 8, characterized in that: A cleaning cover (103) and a waste residue chamber (104) in communication with the interior of the cleaning cover (103) are provided in the machine body (100); the positioning and lifting mechanism (50), the dry ice cleaning mechanism (60), the end of the loading conveyor line (10), the beginning of the unloading conveyor line (20), and the intermediate transfer mechanism (70) are all accommodated in the cleaning cover (103); The waste residue chamber (104) is located below the cleaning cover (103), and a blower (105) is provided in the waste residue chamber (104) so ​​as to suck the residue and residual glue dropped during cleaning into a preset position through the blower (105).

10. A method for using a dry ice cleaning machine, based on the dry ice cleaning machine according to any one of claims 1 to 9, characterized in that: The steps include: The carrier (30) carrying the workpiece (40) is placed on the loading conveyor line (10) through the loading port (101) to complete the loading of the workpiece (40); The carrier (30) and the workpiece (40) are transported to the positioning and lifting mechanism (50) via the loading conveyor line (10). The positioning and lifting mechanism (50) positions the carrier (30) and simultaneously lifts the carrier (30) so that the workpiece (40) on the carrier (30) passes through the through hole (521) of the positioning plate (52) and protrudes from the upper surface of the positioning plate (52); The dry ice cleaning mechanism (60) cleans the workpiece (40). After the cleaning is completed, the positioning lifting mechanism (50) drives the carrier (30) to descend, so that the carrier (30) returns to the loading conveyor line (10); The loading conveyor line (10) conveys the carrier (30) to the end of the loading conveyor line (10), the intermediate transfer mechanism (70) transfers the carrier (30) to the unloading conveyor line (20), and the unloading conveyor line (20) conveys the carrier (30) to the unloading port (102), completing the unloading of the workpiece (40).

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