CN114055937A

CN114055937A - Code spraying device

Info

Publication number: CN114055937A
Application number: CN202111527819.XA
Authority: CN
Inventors: 黄葆钧
Original assignee: Guangzhou Beiyun Technology Co ltd
Current assignee: Guangzhou Beiyun Technology Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-02-18

Abstract

The invention discloses a code spraying device, which comprises a conveying component, a sensing component and a code spraying component, wherein the conveying component is used for conveying products; the sensing assembly comprises a first sensing piece, and the first sensing piece is used for acquiring the height value of a product to be code-sprayed on the conveying assembly; spout a yard subassembly and include code spraying device, code spraying device and first sensing piece electric connection, spout code spraying device and can remove according to the relative conveying component of altitude value to make code spraying device and wait to be between the product of spouting the sign indicating number and predetermine the interval setting. Treat the product of spouting the sign indicating number when first sensor spare flows through, first sensor spare acquires the altitude value of the product of waiting to spout the sign indicating number, judge whether the interval between code spraying device and the product is the preset interval when the product reachs code spraying device through the altitude value, if not the preset interval, make code spraying device and wait to spout the interval between the product of sign indicating number for the preset interval, so that all products are roughly equivalent with code spraying device's distance when spouting the sign indicating number, ensure that code spraying device is the same to the product information size that the sign indicating number back formed on to the product, clearly can discern.

Description

Code spraying device

Technical Field

The invention relates to the technical field of product code spraying, in particular to a code spraying device.

Background

In the non-woven fabric processing industry, because products are generally softer, the problems that the sizes of the products after being sealed are different no matter the products are manually packaged into bags and sealed bags or automatically packaged into bags and sealed bags by machines exist.

Although the jet printing technology is mature, the size of the product after bag sealing is different, so that the size of the information of the jet printed product is different during jet printing, and even the problem that the information of the product is difficult to identify can be caused, thereby bringing great trouble to manufacturers.

Disclosure of Invention

Based on this, there is a need for an inkjet printing apparatus; when the code spraying device sprays codes to a product to be sprayed with codes, the distance between the code spraying device and the product is approximately equal, so that the information of the product sprayed and printed on the product by the code spraying device is consistent in size and can be clearly distinguished.

The technical scheme is as follows:

one embodiment provides a code spraying apparatus, including:

a transport assembly for transporting a product;

the sensing assembly comprises a first sensing piece, and the first sensing piece is used for acquiring the height value of the product to be code-sprayed on the conveying assembly;

spout a yard subassembly, it includes the code spraying device to spout a yard subassembly, the code spraying device with first sensing piece electric connection, the code spraying device can be based on the altitude value is relative conveying component removes, so that the code spraying device with wait to spout a yard be preset interval setting between the product.

According to the code spraying device, products to be sprayed with codes are conveyed through the conveying assembly, when the products flow through the first sensing piece, the first sensing piece acquires the height value of the products to be sprayed with the codes, then whether the distance between the code spraying device and the products is the preset distance when the products reach the position of the code spraying device is judged through the height value of the products, if the distance is the preset distance, the position of the code spraying device does not need to be adjusted, the products to be sprayed with the codes are directly sprayed with the codes, if the distance is not the preset distance, the position of the code spraying device needs to be adjusted through movement, the distance between the code spraying device and the products to be sprayed with the codes is ensured to be the preset distance, so that the distances between all the products and the code spraying device are approximately equal when the codes are sprayed with the codes, the product information formed after the codes are ensured to be the same in size and clearly identifiable by the code spraying device, and the product information after the codes are not different in size due to the fact that the product information is different in size, are difficult to distinguish.

The technical solution is further explained below:

in one embodiment, the conveyor assembly includes a first frame and a conveyor disposed on the first frame for conveying the product;

the code spraying assembly comprises a first driving piece, the first driving piece is connected with the code spraying device, the first driving piece can drive the code spraying device to move relative to the first support according to the height value, and therefore the code spraying device and the product to be sprayed with the codes are arranged at a preset interval.

In one embodiment, the first sensor is further configured to acquire a position of the product to be code-printed on the conveying assembly; the code spraying assembly further comprises a second driving piece, the second driving piece can enable the code spraying device to move relative to the first support according to the position of the product to be sprayed with the codes, and therefore the position of the code spraying device corresponds to the position of the product to be sprayed with the codes.

In one embodiment, the code spraying assembly further comprises a second bracket, and the second bracket is arranged on the first bracket;

the second driving piece is arranged on the second support and can drive the first driving piece to move along a first direction, so that the position of the code spraying device corresponds to the position of the product to be sprayed with the code;

the first driving piece can drive the code spraying device to move along a second direction, so that the code spraying device and the product to be sprayed with the codes are arranged at a preset interval.

In one embodiment, the code spraying assembly further comprises a guide frame, the guide frame is in sliding fit with the second support, the first driving piece is arranged on the guide frame, and the second driving piece can drive the guide frame to move on the second support along the first direction, so that the position of the code spraying device corresponds to the position of the product to be sprayed with the code.

In one embodiment, the guide frame is provided with a guide groove extending along the second direction, and the first driving member is in guiding fit with the guide frame through the guide groove or the code sprayer is in guiding fit with the guide frame through the guide groove so as to enable the code sprayer to move along the second direction.

In one embodiment, the conveyor comprises a conveyor belt and a third driving member, the conveyor belt is arranged on the first support, and the third driving member is fixed on the first support and is used for driving the conveyor belt to move, so that the products to be code-printed are conveyed on the conveyor belt;

the sensing assembly further comprises a third support, the third support is arranged on the first support, and the first sensing piece is arranged on the third support and located above the conveyor to obtain the height value of the product to be sprayed on the conveyor.

In one embodiment, the conveying assembly further comprises a first guardrail and a second guardrail, the first guardrail and the second guardrail are arranged on the first bracket and extend along the conveying direction of the conveying assembly, and the first guardrail and the second guardrail are respectively positioned at two opposite sides of the conveyor;

one end of the first guardrail is provided with a first flow guide part, one end of the second guardrail is provided with a second flow guide part, and the second flow guide part is matched with the first flow guide part to form a flow guide structure so as to guide the product to be sprayed to the conveying area of the conveyor.

In one embodiment, the sensing assembly further includes a second sensing element, the second sensing element is used for determining whether the product to be code-printed on the conveying assembly is to be code-printed, and the second sensing element, the first sensing element and the code-printing assembly are sequentially arranged along a conveying direction of the product on the conveying assembly.

In one embodiment, the code spraying device further comprises a control box and a controller arranged in the control box, and the conveying assembly, the sensing assembly and the code spraying assembly are all electrically connected with the controller;

the first sensing piece is a 3D laser sensor; the second sensing piece is a diffuse reflection sensor.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Furthermore, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements in the drawings are drawn only by way of example, and not necessarily to true scale.

Fig. 1 is a schematic view of an overall structure of a code spraying device in the embodiment of the invention;

FIG. 2 is a side view of the overall structure of the inkjet printing apparatus in the embodiment of FIG. 1;

FIG. 3 is a front view of the overall structure of the inkjet printing apparatus in the embodiment of FIG. 1;

fig. 4 is a bottom view of the overall structure of the code spraying device in the embodiment of fig. 1.

Reference is made to the accompanying drawings in which:

110. a first bracket; 120. a conveyor; 130. a first guardrail; 131. a first flow guide part; 140. a second guard rail; 141. a second flow guide part; 210. a first sensing member; 220. a second sensing member; 230. a third support; 310. a code spraying device; 320. a second bracket; 330. a second driving member; 340. a guide frame; 400. and a control box.

Detailed Description

Embodiments of the present invention are described in detail below with reference to the accompanying drawings:

in order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 to 4, an embodiment provides a code spraying apparatus, including:

a transport assembly for transporting a product;

the sensing assembly comprises a first sensing element 210, and the first sensing element 210 is used for acquiring the height value of the product to be code-sprayed on the conveying assembly;

spout a yard subassembly, spout a yard subassembly includes code spraying device 310, code spraying device 310 with first sensing element 210 electric connection, code spraying device 310 can be according to the altitude value is relative conveying component removes, so that code spraying device 310 with wait to spout be the interval setting of predetermineeing between the product.

When the code spraying device works, products to be sprayed with codes are conveyed through the conveying assembly, when the products flow through the first sensing member 210, the first sensing member 210 acquires the height value of the products to be sprayed with the codes, then whether the distance between the code spraying device 310 and the products is the preset distance is judged through the height value of the products when the products reach the position of the code spraying device 310, if the distance is the preset distance, the position of the code spraying device 310 does not need to be adjusted, the products to be sprayed with the codes are directly sprayed with the codes, if the distance is not the preset distance, the position of the code spraying device 310 needs to be adjusted through movement, the distance between the code spraying device 310 and the products to be sprayed with the codes is ensured to be the preset distance, so that the distances between all the products and the code spraying device 310 during code spraying are approximately equal, the product information formed after code spraying by the code spraying device 310 is ensured to be the same in size and clear, and the product information formed after code spraying by the products is not different in size, and the product information after code spraying is further is not different in size, are difficult to distinguish.

The product of waiting to spout the sign indicating number can be the non-woven fabrics, because the non-woven fabrics is softer, after going into the bagging-off envelope, probably has the condition of variation in size, and mainly shows that the height of product is inequality. When the products with different heights are conveyed to the lower part of the code spraying device 310 on the conveying assembly to spray codes, the distance between the code spraying device 310 and the products is unequal, so that the product information of the code spraying device 310 sprayed on different products is easily different in size and even difficult to distinguish.

Therefore, through the setting of the first sensing piece 210, the first sensing piece 210 acquires the height value of the product to be sprayed with the code, the height value of the product to be sprayed with the code can be compared with the data in the first sensing piece 210, the data can also be directly transmitted to the controller through the first sensing piece 210, whether the position of the code sprayer 310 needs to be adjusted is judged, whether the distance between the code sprayer 310 and the product when the product to be sprayed with the code reaches the lower part of the code sprayer 310 is the preset distance is determined, if not, the adjustment is needed, otherwise, the adjustment is not needed.

So set up for all reach the product of code spraying device 310 below and spout the interval between the code spraying device 310 and all be preset distance, thereby make code spraying device 310 spout the product information size on the sign indicating number product and be equivalent, clearly can discern, avoid examining product information appear after the size differs still need wipe again and spout the production efficiency who leads to the fact again low, the recruitment cost increases the scheduling problem.

It should be noted that:

the preset distance between the code spraying device 310 and the product to be sprayed with the code can be a certain fixed value or a certain interval so as to be approximately kept within a certain distance range, and the product information after code spraying is ensured to be of a same size and be clear and distinguishable.

In one embodiment, referring to fig. 1 to 3, the conveying assembly includes a first frame 110 and a conveyor 120, and the conveyor 120 is disposed on the first frame 110 and is used for conveying the product.

As shown in fig. 1, the first support 110 is used to support a conveyor 120, and the conveyor 120 may be a conveyor belt or a conveyor chain, etc., to form a code spraying line.

In one embodiment, the code spraying assembly includes a first driving member, the first driving member is connected to the code sprayer 310, and the first driving member can drive the code sprayer 310 to move relative to the first support 110 according to the height value, so that a preset distance is formed between the code sprayer 310 and the product to be sprayed.

The first driving member can lift or lower the code sprayer 310 to adjust the height of the code sprayer 310 so that the interval between the height of the code sprayer 310 and the product to be code-sprayed is a preset interval.

In one embodiment, the first sensor 210 is further configured to obtain the position of the product to be code-printed on the conveyor assembly.

Since the products to be code-printed may be located at different positions of the conveyor 120 after arriving at the conveyor 120, in order to ensure that the code-spraying device 310 can code the product information onto the products, the first sensing element 210 needs to acquire the positions of the products on the conveying assembly to determine whether the positions correspond to the code-spraying device 310.

In one embodiment, referring to fig. 1 to 3, the code spraying assembly further includes a second driving member 330, and the second driving member 330 can move the code sprayer 310 relative to the first bracket 110 according to the position of the product to be sprayed, so that the position of the code sprayer 310 corresponds to the position of the product to be sprayed.

In the embodiment shown in fig. 1, the second driving member 330 can move the code sprayer 310 relative to the first carriage 110 so that the position of the code sprayer 310 corresponds to the position of the product to be sprayed.

It should be noted that:

here, the code sprayer 310 is moved relative to the first support 110, the code sprayer 310 is not connected to the first support 110, and the movement of the code sprayer 310 will be described with reference to the first support 110, which is not described again.

In one embodiment, referring to fig. 1 to 3, the inkjet printing assembly further includes a second bracket 320, and the second bracket 320 is disposed on the first bracket 110.

Alternatively, the second carriage 320 is a gantry, and the second carriage 320 straddles above the first carriage 110 such that the inkjet printer 310 is located above the conveyor 120.

In one embodiment, the second driving member 330 is disposed on the second bracket 320 and can drive the first driving member to move along a first direction, so that the position of the code spraying device 310 corresponds to the position of the product to be code-sprayed.

The second driving member 330 is fixed on the second bracket 320 and can drive the first driving member to move, so that the first driving member drives the code spraying device 310 to adjust the position, and finally the position of the code spraying device 310 corresponds to the position of the product to be code-sprayed.

In one embodiment, the first driving member can drive the code sprayer 310 to move along a second direction, so that the code sprayer 310 and the product to be sprayed are arranged at a preset interval.

As shown in fig. 1, if the first direction is a left-right direction, the second direction is an up-down direction, and the conveying direction of the conveyor 120 is a front-back direction, the second driving member 330 is disposed on the second support 320 and can drive the first driving member to move left and right on the second support 320, so that the position of the code spraying device 310 on the first driving member corresponds to the position of the product to be code-sprayed conveyed on the conveyor 120; the first driving member drives or drives the code spraying device 310 to move up and down, so that the distance between the code spraying device 310 and a product to be sprayed with a code is a preset distance.

In one embodiment, referring to fig. 1 to 3, the code spraying assembly further includes a guide frame 340, the guide frame 340 is slidably engaged with the second support 320, the first driving member is disposed on the guide frame 340, and the second driving member 330 is capable of driving the guide frame 340 to move on the second support 320 along the first direction, so that the position of the code sprayer 310 corresponds to the position of the product to be sprayed.

As shown in the embodiment of fig. 1, the guide frame 340 can move left and right relative to the second support 320, and the first driving element is disposed on the guide frame 340, so that when the second driving element 330 drives the guide frame 340 to move left and right, the first driving element can move left and right, and the inkjet printer 310 can move left and right.

It can be understood that:

the code sprayer 310 may be directly connected to the first driving member to perform height adjustment by the telescopic movement of the first driving member; of course, the inkjet printer 310 may also be disposed on the guiding frame 340 to drive the inkjet printer 310 to adjust the height through the telescopic movement of the first driving member, which is not described again.

In one embodiment, the guide frame 340 is provided with a guide slot extending along the second direction, and the first driving member is in guiding fit with the guide frame 340 through the guide slot or the code sprayer 310 is in guiding fit with the guide frame 340 through the guide slot, so that the code sprayer 310 moves along the second direction.

Optionally, the first and second drivers 330 are both servo motors or electric push rods.

In one embodiment, the conveyor 120 includes a conveyor belt disposed on the first support 110 and a third driving element fixed on the first support 110 for driving the conveyor belt to move, so that the product to be code-printed is conveyed on the conveyor belt.

Alternatively, the third driving member may be a servo motor capable of outputting a rotational motion to move the conveyor belt.

In one embodiment, referring to fig. 1 and 3, the sensing assembly further includes a third bracket 230, the third bracket 230 is disposed on the first bracket 110, and the first sensing member 210 is disposed on the third bracket 230 and above the conveyor 120 to obtain a height value of the product to be code-printed on the conveyor 120.

In the embodiment shown in fig. 1, the third frame 230 is a gantry, the third frame 230 straddles the first frame 110, and the first sensor 210 is disposed on the third frame 230 such that the first sensor 210 is located above the conveyor 120.

In one embodiment, referring to fig. 1 and 3, the conveying assembly further includes a first guard rail 130 and a second guard rail 140, the first guard rail 130 and the second guard rail 140 are both disposed on the first support 110 and extend along a conveying direction of the conveying assembly, and the first guard rail 130 and the second guard rail 140 are respectively located on two opposite sides of the conveyor 120.

Due to the arrangement of the first guardrail 130 and the second guardrail 140, products to be code-printed on the conveyor 120 and the code-printed products are not easy to slide off the conveyor 120.

In one embodiment, referring to fig. 1 and 3, one end of the first guardrail 130 is provided with a first diversion part 131, one end of the second guardrail 140 is provided with a second diversion part 141, and the second diversion part 141 and the first diversion part 131 cooperate to form a diversion structure so as to divert the product to be code-sprayed to the conveying area of the conveyor 120.

To ensure that the product to be code-sprayed can be located in the middle area of the conveyor 120 after reaching the conveyor 120, the first flow guide part 131 and the second flow guide part 141 are provided to guide the product to be code-sprayed to the middle of the conveyor 120, so as to reduce or avoid the position adjustment range of the subsequent code sprayer 310.

Alternatively, the first deflector 131 may be a first deflector provided on the first guard rail 130. Similarly, the second diversion part 141 may be a second diversion plate provided on the second protection fence 140.

In one embodiment, referring to fig. 1 and fig. 2, the sensing assembly further includes a second sensing element 220, the second sensing element 220 is used for determining whether the code is to be printed on the product on the conveying assembly, and the second sensing element 220, the first sensing element 210 and the code printing assembly are sequentially arranged along a conveying direction of the product on the conveying assembly.

The second sensing member 220 is used for determining whether the product to be code-printed on the conveying assembly is to be code-printed, so as to prevent the first sensing member 210 and the code-printing assembly from performing unnecessary actions. For example, if the conveying assembly does not have the product to be code-printed being conveyed, the first sensor 210 does not need to work, and the code printer 310 does not need to perform the position adjustment, the height adjustment and the code-printing operation.

Optionally, a second sensing member 220 is provided on the first support 110 and on the side of the conveyor 120.

In an embodiment, referring to fig. 1 to 4, the code spraying apparatus further includes a control box 400 and a controller disposed in the control box 400, and the conveying assembly, the sensing assembly and the code spraying assembly are electrically connected to the controller.

Optionally, the control box 400 is fixed to a side of the first bracket 110, and the controller is a PLC.

In one embodiment, the first sensing element 210 is a 3D laser sensor.

In one embodiment, the second sensing element 220 is a diffuse reflectance sensor.

When a product to be code-sprayed is conveyed on the conveyor 120, the diffuse reflection sensor is triggered, a triggered signal of the diffuse reflection sensor is transmitted to the 3D laser sensor through the PLC, the 3D laser sensor starts to work to acquire the height value and the position of the product to be code-sprayed and is compared with a preset value, if the height value and the position of the product to be code-sprayed do not accord with the preset value, an adjustment amount is calculated through the difference between the acquired height value and the preset value and is transmitted to the second driving piece 330 and the first driving piece through the PLC, the second driving piece 330 adjusts the position of the code sprayer 310 to enable the position of the code sprayer 310 to correspond to the position of the product to be code-sprayed, the first driving piece adjusts the height of the code sprayer 310 according to the adjustment amount to enable the distance between the code sprayer 310 and the product to be a preset distance, and the size of the product information after code spraying is equivalent and clear and distinguishable.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A code spraying device is characterized by comprising:

a transport assembly for transporting a product;

2. The code spraying device of claim 1, wherein the conveying assembly comprises a first bracket and a conveyor, and the conveyor is arranged on the first bracket and is used for conveying the products;

3. The code spraying device of claim 2, wherein the first sensor is further configured to obtain a position of the product to be sprayed on the conveyor assembly; the code spraying assembly further comprises a second driving piece, the second driving piece can enable the code spraying device to move relative to the first support according to the position of the product to be sprayed with the codes, and therefore the position of the code spraying device corresponds to the position of the product to be sprayed with the codes.

4. The code spraying device of claim 3, wherein the code spraying assembly further comprises a second bracket, and the second bracket is arranged on the first bracket;

5. The code spraying device of claim 4, wherein the code spraying assembly further comprises a guide frame, the guide frame is in sliding fit with the second support, the first driving member is arranged on the guide frame, and the second driving member can drive the guide frame to move on the second support along the first direction, so that the position of the code spraying device corresponds to the position of the product to be sprayed.

6. A code spraying device according to claim 5, wherein the guide frame is provided with a guide groove extending along the second direction, and the first driving member is in guiding fit with the guide frame through the guide groove or the code spraying device is in guiding fit with the guide frame through the guide groove so as to move the code spraying device along the second direction.

7. A code spraying device according to claim 2, wherein the conveyor comprises a conveyor belt and a third driving member, the conveyor belt is arranged on the first bracket, and the third driving member is fixed on the first bracket and is used for driving the conveyor belt to move so as to convey the products to be sprayed on the conveyor belt;

8. The code spraying device of claim 2, wherein the conveying assembly further comprises a first guardrail and a second guardrail, the first guardrail and the second guardrail are arranged on the first support and extend along the conveying direction of the conveying assembly, and the first guardrail and the second guardrail are respectively positioned at two opposite sides of the conveyor;

9. The code spraying device according to any one of claims 1 to 8, wherein the sensing assembly further comprises a second sensing member, the second sensing member is used for judging whether the products to be sprayed on the conveying assembly are to be sprayed, and the second sensing member, the first sensing member and the code spraying assembly are sequentially arranged along the conveying direction of the products on the conveying assembly.

10. The code spraying device of claim 9, further comprising a control box and a controller arranged in the control box, wherein the conveying assembly, the sensing assembly and the code spraying assembly are electrically connected with the controller;