A food pre-packaging spraying apparatus

Abstract

The application is suitable for the field of food packaging, and provides a spraying equipment for food pre-packaging, which comprises a vertical plate and a base, the base is fixed with two vertical plates, and further comprises: a guide plate, which is fixed between the two vertical plates and is provided with a guide groove; a threaded shaft, which is rotatably installed between the two vertical plates, one of the vertical plates is fixed with a servo motor in transmission connection with the threaded shaft, the threaded shaft is further threadedly connected with a threaded sleeve, the lower side of the threaded sleeve is fixed with a transmission plate, the transmission plate is slidably connected with a U-shaped frame, the two branches of the U-shaped frame are further fixed with a guide shaft, and the guide shaft passes through the guide groove; a clamping assembly, which is further installed on the U-shaped frame; a spraying assembly and a drying assembly, which are further fixed on the base respectively. The application can realize integrated operation of clamping, feeding, processing (spraying and drying) and unloading of the packaging box, and improve the overall processing efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of food packaging, and particularly relates to a spraying device for food pre-packaging. BACKGROUND

[0002] Food packaging is a component of food commodities. After the production of food packaging boxes is completed, in order to make the packaging boxes more beautiful, the packaging boxes need to be sprayed, the packaging boxes are sprayed with specified paint, and the packaging boxes can be used for food packaging after the paint is completely solidified.

[0003] The existing food packaging spraying device cannot realize the integrated operation of clamping feeding, processing (spraying and drying) and unloading of the packaging box, and the overall processing efficiency is poor. Therefore, in view of the above status, it is urgent to develop a spraying device for food pre-packaging to overcome the deficiencies in current actual applications. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a spraying device for food pre-packaging, which aims to solve the problem that the existing food packaging spraying device cannot realize the integrated operation of clamping feeding, processing (spraying and drying) and unloading of the packaging box.

[0005] The embodiment of the present application is implemented as follows: a spraying device for food pre-packaging, comprising a vertical plate and a base, two vertical plates are fixed on the base, further comprising: a guide plate, a guide plate is fixedly installed between the two vertical plates, a guide groove is formed in the guide plate, the two ends of the guide groove correspond to a feeding area and an unloading area respectively, and the middle of the guide groove corresponds to a spraying and drying area; a threaded shaft, a threaded shaft is also rotatably installed between the two vertical plates, a servo motor in transmission connection with the threaded shaft is fixedly installed on one of the vertical plates, a threaded sleeve is also threadedly connected to the threaded shaft, a transmission plate is fixed to the lower side of the threaded sleeve, a U-shaped frame is slidably connected to the transmission plate, a guide shaft is further fixed between the two branches of the U-shaped frame, the guide shaft passes through the guide groove and is in sliding connection with the guide groove; a clamping assembly, the U-shaped frame further has a clamping assembly installed thereon, and the clamping assembly is further connected with the transmission plate; when the U-shaped frame moves from the end of the feeding area to the spraying and drying area, the clamping assembly clamps the packaging box; when the U-shaped frame is in the spraying and drying area, the clamping assembly always clamps and fixes the packaging box; when the U-shaped frame moves from the end of the spraying and drying area to the unloading area, the clamping assembly releases the packaging box; a spraying assembly and a drying assembly, the base further has a spraying assembly and a drying assembly fixed thereon respectively, the spraying assembly is used for spraying the packaging box in the spraying and drying area, and the drying assembly is used for drying the sprayed packaging box.

[0006] Further technical solutions, the rear branch of the U-shaped frame is in sliding connection with the transmission plate.

[0007] Further technical solutions, the guide groove includes two end inclined portions and a middle horizontal portion, and the inclined portion is arranged downwardly away from the horizontal portion.

[0008] Further technical solutions, the clamping assembly includes an L-shaped rod, a first piston plate, a third hose, a side support rod, a communication pipe, a telescopic air bag, a soft pad, a guide rod and a sliding sleeve, a lower opening cavity is formed in the front branch of the U-shaped frame, the first piston plate is sealingly and slidably arranged in the cavity, the upper side of the first piston plate is fixed with the L-shaped rod, the vertical portion of the L-shaped rod sealingly and slidably extends from the top of the U-shaped frame, the horizontal portion of the L-shaped rod is fixedly connected with the transmission plate, the lower side of the first piston plate is fixed with the guide rod in the cavity, two sliding sleeves are slidably arranged on the guide rod, clamping plates are fixedly arranged on the sliding sleeves, soft pads are arranged on the sides of the two clamping plates close to each other, a communication pipe is arranged between the upper portions of the two clamping plates, and one telescopic air bag is connected to the two sides of the communication pipe, respectively, one end of the telescopic air bag away from the communication pipe is connected with the clamping plate, a plurality of side support rods are circumferentially arranged on the outer side of the communication pipe, and the ends of the side support rods away from the communication pipe are fixedly connected with the cavity wall of the cavity, and the upper end of the communication pipe is connected with the first piston plate through the third hose, and the third hose is in communication with the cavity on the upper side of the first piston plate.

[0009] Further technical solutions, when the U-shaped frame moves from the end of the feeding area to the spraying and drying area, the U-shaped frame moves upward, the cavity on the upper side of the first piston plate increases, the telescopic air bag is suctioned by negative pressure, the two clamping plates move close to each other, so that the two clamping plates cooperate to clamp the packaging box; when the U-shaped frame is in the spraying and drying area, the longitudinal position of the U-shaped frame does not change, and the two clamping plates always cooperate to clamp the packaging box; when the U-shaped frame moves from the end of the spraying and drying area to the discharging area, the U-shaped frame moves downward, the cavity on the upper side of the first piston plate decreases, the telescopic air bag is pressurized, and the two clamping plates move away from each other, so that the two clamping plates cooperate to release the packaging box.

[0010] Further technical solutions, an adjusting cavity is further formed in the front branch of the U-shaped frame on the upper side of the cavity, the lower end of the adjusting cavity is in communication with the cavity, a second piston plate is sealingly and slidably arranged in the adjusting cavity, the upper side of the second piston plate is fixed with a third vertical telescopic cylinder, the cylinder body of the third vertical telescopic cylinder is fixedly connected with the U-shaped frame, a gas hole is further arranged on the upper side of the U-shaped frame, and the adjusting cavity is in communication with the outside through the gas hole.

[0011] Further technical solutions, the spraying assembly comprises a first cylinder support, a first horizontal telescopic cylinder, a first sliding seat, a first vertical telescopic cylinder, a first pipe support, a printing nozzle, a first pipe body, a first hose, a conveying pump, an adding port and a spraying liquid tank, the first horizontal telescopic cylinder is fixed on the base through the first cylinder support, the output end of the first horizontal telescopic cylinder is fixedly provided with the first sliding seat which is slidingly connected with the surface of the base, the upper side of the first sliding seat is fixedly provided with the first vertical telescopic cylinder, the output end of the first vertical telescopic cylinder is fixedly provided with the first pipe support, the first pipe support is horizontally fixed with the first pipe body, one end of the first pipe body is provided with the printing nozzle, the other end of the first pipe body is provided with the first hose, one end of the first hose away from the first pipe body is connected with the outlet of the conveying pump, the conveying pump is fixed on the spraying liquid tank, the inlet of the conveying pump is communicated with the bottom of the inner cavity of the spraying liquid tank, the spraying liquid tank is fixed on the base, and the top of the spraying liquid tank is provided with the adding port.

[0012] Further technical solutions, the drying assembly comprises a temperature control fan, a base, a second hose, a second pipe support, a blowing head, a second pipe, a second vertical telescopic cylinder, a second sliding seat, a second cylinder support and a second horizontal telescopic cylinder, the second horizontal telescopic cylinder is fixed on the base through the second cylinder support, the output end of the second horizontal telescopic cylinder is fixedly provided with the second sliding seat which is slidingly connected with the surface of the base, the upper side of the second sliding seat is fixedly provided with the second vertical telescopic cylinder, the output end of the second vertical telescopic cylinder is fixedly provided with the second pipe support, the second pipe support is horizontally fixed with the second pipe, one end of the second pipe is provided with the blowing head, the other end of the second pipe is provided with the second hose, one end of the second hose away from the second pipe is connected with the outlet of the temperature control fan, the temperature control fan is fixed on the base, and the base is fixed on the base.

[0013] Further technical solutions, the base corresponding to the feeding area is further fixed with an auxiliary feeding assembly, the auxiliary feeding assembly comprises a first hinge support, an inverted T-shaped seat, a telescopic cylinder, an arc-shaped telescopic rod, a fixing bolt, a supporting seat, a second hinge support and a fixing knob, the inverted T-shaped seat is fixed on the base, the telescopic cylinder is hingedly arranged on the vertical part of the inverted T-shaped seat through the first hinge support, the output end of the telescopic cylinder is hingedly connected with the bottom of the supporting seat through the second hinge support, the second hinge support is further provided with the fixing knob for locking and fixing the supporting seat, the arc-shaped telescopic rod is further fixed between the telescopic cylinder and the vertical part of the inverted T-shaped seat, and the fixing bolt for locking the arc-shaped telescopic rod after adjustment is arranged on the arc-shaped telescopic rod.

[0014] Further technical solutions, the supporting seat and the second hinge support are detachably connected, and the top of the supporting seat is provided with a groove for placing the packaging box; the arc-shaped telescopic rod is in a circular arc structure, and the center of the arc-shaped telescopic rod is located on the hinge shaft axis of the first hinge support.

[0015] The food pre-packaging spraying equipment provided by the embodiment of the present application has special limitations of the guide plate, when the threaded sleeve moves along the threaded shaft by the rotation of the threaded shaft driven by the servo motor, the whole composed of the U-shaped frame and the guide shaft is moved along the guide groove of the guide plate by the transmission plate, so that the clamping assembly installed on the U-shaped frame clamps, feeds, processes and unloads the packaging box, and the packaging box is sprayed and dried by the spraying assembly and the drying assembly respectively when in the spraying and drying area, the overall processing efficiency is improved, the layout is reasonable and reliable, and the food pre-packaging spraying equipment is worth promoting. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure schematic view of the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure.

[0017] Figure 2 The left view three-dimensional structure schematic view of the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure. Figure 1

[0018] Figure 3 The enlarged structure schematic view of the A part in the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure. Figure 2

[0019] Figure 4 The enlarged structure schematic view of the spraying assembly part in the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure. Figure 1

[0020] Figure 5 The enlarged structure schematic view of the drying assembly part in the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure. Figure 1

[0021] Figure 6 The front view partial sectional structure schematic view of the U-shaped frame part in the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure.

[0022] Figure 7 The structure schematic view of the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure. Figure 6

[0023] Figure 8 The structure schematic view of the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure. Figure 6

[0024] The structure schematic view of the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure. Figure 9 Figure 1 The structure schematic view of the food pre-packaging spraying equipment provided by the embodiment of the present application is shown in the figure.

[0025] ​​​​​​In the diagram: 1-Servo motor, 2-Upright plate, 3-Threaded shaft, 4-Threaded sleeve, 5-L-shaped rod, 6-Transmission plate, 7-U-shaped frame, 8-Guide plate, 9-Guide groove, 10-Base, 11-Drying assembly, 12-Clamping plate, 13-Packaging box, 14-Spraying assembly, 15-Guide shaft, 16-First cylinder support, 17-First horizontal telescopic cylinder, 18-First slide, 19-First vertical telescopic cylinder, 20-First pipe support, 21-Printing nozzle, 22-First pipe body, 23-First hose, 24-Transfer pump, 25-Adding port, 26-Spraying liquid tank, 27-Temperature control fan, 28-Base, 29-Second hose, 30-Second pipe support 31-Air blowing head, 32-Second pipe fitting, 33-Second vertical telescopic cylinder, 34-Second slide, 35-Second cylinder support, 36-Second horizontal telescopic cylinder, 37-Cavity, 38-First piston plate, 39-Third hose, 40-Side support rod, 41-Connecting pipe, 42-Telescopic airbag, 43-Soft pad, 44-Guide rod, 45-Sliding sleeve, 46-Second piston plate, 47-Air hole, 48-Third vertical telescopic cylinder, 49-Adjusting chamber, 50-Auxiliary feeding assembly, 51-First hinge support, 52-Inverted T-shaped seat, 53-Telescopic cylinder, 54-Arc-shaped telescopic rod, 55-Fixing bolt, 56-Support, 57-Second hinge support, 58-Fixing knob. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] like Figures 1-3 As shown, a spraying device for food pre-packaging provided in one embodiment of the present invention includes a vertical plate 2 and a base 10, wherein two vertical plates 2 are fixed on the base 10, and the device further includes:

[0029] Guide plate 8 is installed and fixed between the two upright plates 2. Guide plate 8 is provided with guide groove 9. The two ends of guide groove 9 correspond to the feeding area and the unloading area, respectively. The middle area of ​​guide groove 9 is the spraying and drying area.

[0030] A threaded shaft 3 is rotatably mounted between the two vertical plates 2. A servo motor 1 that is connected to the threaded shaft 3 is mounted and fixed on one of the vertical plates 2. A threaded sleeve 4 is also threadedly connected to the threaded shaft 3. A transmission plate 6 is fixed to the lower side of the threaded sleeve 4. A U-shaped frame 7 is slidably connected to the transmission plate 6. A guide shaft 15 is fixed between the two branches of the U-shaped frame 7. The guide shaft 15 passes through the guide groove 9 and is slidably connected to the guide groove 9.

[0031] The U-shaped frame 7 is also equipped with a clamping assembly, which is connected to the transmission plate 6. When the U-shaped frame 7 moves from the end of the loading area to the spray drying area, the clamping assembly clamps the packaging box 13. When the U-shaped frame 7 is in the spray drying area, the clamping assembly always clamps and fixes the packaging box 13. When the U-shaped frame 7 moves from the end of the spray drying area to the unloading area, the clamping assembly releases the packaging box 13.

[0032] The base 10 is also equipped with a spraying component 14 and a drying component 11. The spraying component 14 is used to spray the packaging box 13 in the spraying and drying area, and the drying component 11 is used to dry the packaged box 13 after spraying.

[0033] In this embodiment of the invention, by utilizing the special limitation of the guide plate 8, when the servo motor 1 drives the threaded shaft 3 to rotate, the threaded sleeve 4 moves along the threaded shaft 3, thereby using the transmission plate 6 to push the U-shaped frame 7 and the guide shaft 15 together to move along the guide groove 9 of the guide plate 8. This enables the clamping assembly installed on the U-shaped frame 7 to clamp, load, process, and unload the packaging box 13. In the spraying and drying zone, the spraying assembly 14 and the drying assembly 11 respectively spray and dry the packaging box 13. The overall processing efficiency is improved, the layout is reasonable and reliable, and it is worth promoting.

[0034] like Figures 1-3 As shown, in a preferred embodiment of the present invention, the rear branch of the U-shaped frame 7 is slidably connected to the transmission plate 6. Thus, the transmission plate 6 can push the U-shaped frame 7 to move, and the connection between the guide shaft 15 and the guide groove 9 allows the U-shaped frame 7 to rise and fall.

[0035] The guide groove 9 includes inclined portions at both ends and a horizontal portion in the middle. The inclined portion is inclined downward at the end away from the horizontal portion, and the specific angle of inclination can be arranged as needed and is not limited. To improve the smoothness of the connection between the guide shaft 15 and the guide groove 9, the corners of the guide groove 9 are rounded. By limiting the guide groove 9, the U-shaped frame 7 can move horizontally when it is in the horizontal portion; when the U-shaped frame 7 is at both ends of the guide groove 9, the guide groove 9 limits the guide shaft 15, realizing the descent of the U-shaped frame 7, thereby using the clamping assembly to clamp and release the packaging box 13.

[0036] like Figure 1 , 6As shown in Fig. 8, as a preferred embodiment of the present application, the clamping assembly comprises an L-shaped rod 5, a first piston plate 38, a third hose 39, a side support rod 40, a communication pipe 41, an elastic air bag 42, a soft pad 43, a guide rod 44 and a sliding sleeve 45, a lower open cavity 37 is formed in the front branch of the U-shaped frame 7, the first piston plate 38 is sealingly and slidably arranged in the cavity 37, the upper side of the first piston plate 38 is fixed with the L-shaped rod 5, the vertical part of the L-shaped rod 5 sealingly and slidably extends from the top of the U-shaped frame 7, and the horizontal part of the L-shaped rod 5 is fixedly connected with the transmission plate 6, the lower side of the first piston plate 38 is fixed with the guide rod 44 in the cavity 37, two sliding sleeves 45 are slidably arranged on the guide rod 44, the clamping plates 12 are fixedly arranged on the sliding sleeves 45, the soft pads 43 are arranged on the sides of the two clamping plates 12 close to each other, the reliability of clamping the packaging box 13 is improved through the soft pads 43, the communication pipe 41 is arranged between the upper parts of the two clamping plates 12, the elastic air bags 42 are connected to the two sides of the communication pipe 41, respectively, one end of the elastic air bag 42 away from the communication pipe 41 is connected with the clamping plate 12, a plurality of side support rods 40 are circumferentially arranged on the outer side of the communication pipe 41, one end of the side support rod 40 away from the communication pipe 41 is fixedly connected with the cavity wall of the cavity 37, the communication pipe 41 is stably supported through the side support rod 40, and the upper end of the communication pipe 41 is connected with the first piston plate 38 through the third hose 39, and the third hose 39 communicates with the cavity 37 on the upper side of the first piston plate 38.

[0037] In application, when the U-shaped frame 7 moves from the end of the feeding area to the spraying and drying area, the U-shaped frame 7 moves upward, the cavity 37 on the upper side of the first piston plate 38 increases, the elastic air bags 42 are suctioned by negative pressure, the two clamping plates 12 move close to each other, so that the two clamping plates 12 cooperate to clamp the packaging box 13; when the U-shaped frame 7 is in the spraying and drying area, the longitudinal position of the U-shaped frame 7 does not change, and the two clamping plates 12 always cooperate to clamp the packaging box 13; when the U-shaped frame 7 moves from the end of the spraying and drying area to the discharging area, the U-shaped frame 7 moves downward, the cavity 37 on the upper side of the first piston plate 38 decreases, the elastic air bags 42 are pressurized, and the two clamping plates 12 move away from each other, so that the two clamping plates 12 cooperate to release the packaging box 13. In addition, the movement of the clamping plate 12 can be stably guided through the arrangement of the guide rod 44 and the sliding sleeve 45; the elastic air bag 42 can be pneumatically extended and retracted, and is not specifically limited.

[0038] In one embodiment, as shown in Fig. 8, Figure 8As shown, in order to realize the adjustment, the upper side of the cavity 37 is further provided with an adjusting cavity 49 in the front side branch of the U-shaped frame 7, the lower end of the adjusting cavity 49 is communicated with the cavity 37, a second piston plate 46 is further sealingly and slidingly arranged in the adjusting cavity 49, the upper side of the second piston plate 46 is fixed with a third vertical telescopic cylinder 48, the cylinder body of the third vertical telescopic cylinder 48 is fixedly connected with the U-shaped frame 7, the upper side of the adjusting cavity 49 is further provided with an air hole 47 on the U-shaped frame 7, and the adjusting cavity 49 is communicated with the outside through the air hole 47. The position of the second piston plate 46 is controlled by the third vertical telescopic cylinder 48, and the telescopic air bag 42 can be pre-adjusted and controlled to adapt to the clamping operation of different models of the packaging box 13, which is flexible and convenient.

[0039] As shown in the drawings, Figures 4-5 As a preferred embodiment of the present application, the spraying assembly 14 includes a first cylinder support 16, a first horizontal telescopic cylinder 17, a first sliding seat 18, a first vertical telescopic cylinder 19, a first pipe support 20, a printing spray head 21, a first pipe body 22, a first hose 23, a conveying pump 24, an adding port 25 and a spraying liquid tank 26. The first horizontal telescopic cylinder 17 is fixed on the base 10 through the first cylinder support 16, and the output end of the first horizontal telescopic cylinder 17 is fixedly installed with the first sliding seat 18 which is slidingly connected with the surface of the base 10. The upper side of the first sliding seat 18 is fixedly installed with the first vertical telescopic cylinder 19, and the output end of the first vertical telescopic cylinder 19 is fixedly installed with the first pipe support 20. The first pipe support 20 is horizontally fixed with the first pipe body 22, one end of the first pipe body 22 is installed with the printing spray head 21, and the other end of the first pipe body 22 is installed with the first hose 23. The end of the first hose 23 away from the first pipe body 22 is connected with the outlet of the conveying pump 24, the conveying pump 24 is fixed on the spraying liquid tank 26, the inlet of the conveying pump 24 is communicated with the bottom of the inner cavity of the spraying liquid tank 26, the spraying liquid tank 26 is fixed on the base 10, and the top of the spraying liquid tank 26 is provided with the adding port 25. Through the arrangement of this part of structure, the position of the printing spray head 21 can be adjusted by the cooperation of the first horizontal telescopic cylinder 17 and the first vertical telescopic cylinder 19, so that the printing spray head 21 corresponds to the area to be sprayed of the packaging box 13, and then the spraying liquid in the spraying liquid tank 26 is extracted by the conveying pump 24 to be conveyed to the printing spray head 21, thereby realizing the spraying operation.

[0040] The drying assembly 11 comprises a temperature-controlled air blower 27, a base 28, a second hose 29, a second pipe support 30, a blowing head 31, a second pipe 32, a second vertical telescopic cylinder 33, a second sliding seat 34, a second cylinder support 35 and a second horizontal telescopic cylinder 36, the second horizontal telescopic cylinder 36 is fixed on the base 10 through the second cylinder support 35, the output end of the second horizontal telescopic cylinder 36 is fixedly installed with the second sliding seat 34 which is in sliding connection with the surface of the base 10, the upper side of the second sliding seat 34 is fixedly installed with the second vertical telescopic cylinder 33, the output end of the second vertical telescopic cylinder 33 is fixedly installed with the second pipe support 30, the second pipe support 30 is horizontally fixed with the second pipe 32, one end of the second pipe 32 is installed with the blowing head 31, the other end of the second pipe 32 is installed with the second hose 29, one end of the second hose 29 away from the second pipe 32 is connected with the outlet of the temperature-controlled air blower 27, the temperature-controlled air blower 27 is fixed on the base 28, and the base 28 is fixed on the base 10. Through the arrangement of the structure, the position of the blowing head 31 can be adjusted by the cooperation of the second horizontal telescopic cylinder 36 and the second vertical telescopic cylinder 33, so that the blowing head 31 corresponds to the spraying area of the packaging box 13, and then a certain temperature air is transported to the blowing head 31 by the temperature-controlled air blower 27, so as to realize the drying purpose of the spraying area of the packaging box 13.

[0041] As shown in Figure 1 and 9 As a preferred embodiment of the present application, in order to improve the reliability of the clamping assembly in clamping the packaging box 13, an auxiliary feeding assembly 50 is further fixed on the base 10 corresponding to the feeding area, the auxiliary feeding assembly 50 comprises a first hinge support 51, an inverted T-shaped seat 52, a telescopic cylinder 53, an arc-shaped telescopic rod 54, a fixing bolt 55, a supporting seat 56, a second hinge support 57 and a fixing knob 58, the inverted T-shaped seat 52 is fixed on the base 10, the telescopic cylinder 53 is hingedly connected to the vertical part of the inverted T-shaped seat 52 through the first hinge support 51, the output end of the telescopic cylinder 53 is hingedly connected with the bottom of the supporting seat 56 through the second hinge support 57, the second hinge support 57 is further provided with the fixing knob 58 for locking and fixing the supporting seat 56, and the arc-shaped telescopic rod 54 is further fixed between the telescopic cylinder 53 and the vertical part of the inverted T-shaped seat 52, and the arc-shaped telescopic rod 54 is provided with the fixing bolt 55 for adjusting and locking.

[0042] In one embodiment, the supporting seat 56 and the second hinge support 57 are detachably connected, which facilitates the replacement of the supporting seat 56 and facilitates the reliable placement of packaging boxes 13 of different models; the top of the supporting seat 56 is provided with a groove for placing the packaging box 13, so as to avoid the sliding of the packaging box 13; the arc-shaped telescopic rod 54 is in a circular arc structure, and the center of the arc-shaped telescopic rod 54 is located on the hinge shaft axis of the first hinge support 51, so that the telescopic cylinder 53 can be reliably adjusted in angle.

[0043] In application, the inclination of the telescopic cylinder 53 and the guide groove 9 can be adjusted by the arc-shaped telescopic rod 54 (such as parallel), and then the bracket 56 is adjusted horizontally and locked by the fixing knob 58. The structure of the second hinge support 57 and the fixing knob 58 can be realized by the prior art, and is not limited. In this way, in the working process, the clamping assembly can effectively and reliably clamp the packaging box 13 by matching the clamping assembly with the inclined lifting movement of the packaging box 13. In addition, during unloading, the clamping assembly can unload the packaging box 13, without special arrangement.

[0044] The food pre-packaging spraying device provided in the above embodiments of the present application can realize integrated operation of clamping feeding, spraying and drying of the packaging box 13, and the clamping and unloading operations are realized by the inherent movement of the packaging box 13, which is flexible, reliable, energy-saving and environmentally friendly. In addition, the adjustable spraying assembly 14 and drying assembly 11, and the arrangement of the auxiliary feeding assembly 50 can realize reliable spraying operation for different models of packaging boxes 13, which is worth promoting.

[0045] In addition, the control of each component can be realized by the PLC controller disclosed in the prior art, and the model and circuit connection of each component are not specifically limited, and can be flexibly set in actual application.

[0046] The circuits, electronic components and modules involved are all prior art, and those skilled in the art can realize them without further description, and the content protected by the present application does not involve improvement of software and methods.

[0047] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0048] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A food pre-packaging spraying apparatus comprising a vertical plate and a base, two vertical plates are fixed on the base, characterized in that, Also include: The guide plate is fixed between the two said vertical plate, the guide plate is provided with guide slot, the two ends of the guide slot corresponding area is the feeding area and the discharge area respectively, the middle of the guide slot corresponding area is the spraying drying area; The screw shaft is rotatably installed between the two said vertical plate, one of the vertical plate is fixedly installed with a servo motor which is in transmission connection with the screw shaft, the screw shaft is also in threaded connection with a threaded sleeve, the lower side of the threaded sleeve is fixedly installed with a transmission plate, the U-shaped frame is slidably connected to the transmission plate, the guide shaft is fixed between the two branches of the U-shaped frame, the guide shaft passes through the guide slot and is in sliding connection with the guide slot; The clamping assembly is installed on the U-shaped frame and is connected with the transmission plate; When the U-shaped frame moves from the end of the feeding area to the spraying drying area, the clamping assembly clamps the packaging box; When the U-shaped frame is in the spraying drying area, the clamping assembly always clamps the packaging box; When the U-shaped frame moves from the end of the spraying drying area to the discharge area, the clamping assembly releases the packaging box; The spraying assembly and the drying assembly are fixed on the base respectively, the spraying assembly is used for spraying the packaging box in the spraying drying area, and the drying assembly is used for drying the packaging box after spraying; The guide slot includes inclined portions at both ends and a horizontal portion in the middle, and the inclined portions are downwardly inclined away from the horizontal portion; The clamping assembly includes an L-shaped rod, a first piston plate, a third hose, a side support rod, a communication pipe, a stretchable air bag, a soft pad, a guide rod, and a sliding sleeve; A cavity with a lower opening is formed in the front branch of the U-shaped frame, the first piston plate is sealingly and slidably arranged in the cavity, the L-shaped rod is fixed to the upper side of the first piston plate, the vertical portion of the L-shaped rod sealingly and slidably extends from the top of the U-shaped frame, and the horizontal portion of the L-shaped rod is fixedly connected to the transmission plate; The guide rod is fixed to the lower side of the first piston plate in the cavity, two sliding sleeves are slidably arranged on the guide rod, the clamping plates are fixedly installed on the sliding sleeves, and the soft pads are arranged on the sides of the two clamping plates close to each other; The communication pipe is arranged between the upper portions of the two clamping plates, one stretchable air bag is connected to each side of the communication pipe, and the ends of the stretchable air bags away from the communication pipe are connected to the clamping plates; A plurality of side support rods are circumferentially arranged on the outer side of the communication pipe, and the ends of the side support rods away from the communication pipe are fixedly connected to the cavity walls; The upper end of the communication pipe is connected to the first piston plate through the third hose, and the third hose communicates with the cavity on the upper side of the first piston plate; When the U-shaped frame moves from the end of the feeding area to the spraying drying area, the U-shaped frame moves upward, the cavity on the upper side of the first piston plate increases, the stretchable air bags are sucked by negative pressure, and the two clamping plates move close to each other, so that the two clamping plates clamp the packaging box together; When the U-shaped frame is in the spraying drying area, the longitudinal position of the U-shaped frame does not change, and the two clamping plates always clamp the packaging box together. When the U-shaped frame moves from the end of the spraying and drying area to the unloading area, the U-shaped frame moves downward, the cavity on the upper side of the first piston plate is reduced, the telescopic air bag is pressurized, and the two clamping plates are away from each other, so that the two clamping plates cooperate to release the packaging box.

2. The food product pre-pack spraying apparatus of claim 1, wherein, The rear branch of the U-shaped frame is in sliding connection with a transmission plate.

3. The food product pre-pack spraying apparatus of claim 1, wherein, The upper side of the cavity is further provided with an adjusting cavity in the front branch of the U-shaped frame, the lower end of the adjusting cavity is in communication with the cavity, a second piston plate is further sealingly and slidingly arranged in the adjusting cavity, the upper side of the second piston plate is fixed with a third vertical telescopic cylinder, the cylinder body of the third vertical telescopic cylinder is fixedly connected with the U-shaped frame; The upper side of the adjusting cavity is further provided with an air hole on the U-shaped frame, and the adjusting cavity is in communication with the outside through the air hole.

4. A food pre-pack spraying apparatus according to any one of claims 1 to 3, wherein The spraying assembly comprises a first cylinder support, a first horizontal telescopic cylinder, a first sliding seat, a first vertical telescopic cylinder, a first pipe support, a printing nozzle, a first pipe body, a first hose, a conveying pump, an adding port and a spraying liquid tank. The first horizontal telescopic cylinder is fixed on the base through the first cylinder support, the output end of the first horizontal telescopic cylinder is fixedly provided with the first sliding seat in sliding connection with the surface of the base, the upper side of the first sliding seat is fixedly provided with the first vertical telescopic cylinder, the output end of the first vertical telescopic cylinder is fixedly provided with the first pipe support, the first pipe support is horizontally fixed with the first pipe body, one end of the first pipe body is provided with the printing nozzle, the other end of the first pipe body is provided with the first hose, one end of the first hose away from the first pipe body is connected with the outlet of the conveying pump, the conveying pump is fixed on the spraying liquid tank, and the inlet of the conveying pump is in communication with the bottom of the inner cavity of the spraying liquid tank. The spraying liquid tank is fixed on the base, and the top of the spraying liquid tank is provided with the adding port.

5. The food product pre-pack spraying apparatus of claim 4, wherein, The drying assembly comprises a temperature control fan, a base, a second hose, a second pipe support, a blowing head, a second pipe, a second vertical telescopic cylinder, a second sliding seat, a second cylinder support and a second horizontal telescopic cylinder. The second horizontal telescopic cylinder is fixed on the base through the second cylinder support, the output end of the second horizontal telescopic cylinder is fixedly provided with the second sliding seat in sliding connection with the surface of the base, the upper side of the second sliding seat is fixedly provided with the second vertical telescopic cylinder, the output end of the second vertical telescopic cylinder is fixedly provided with the second pipe support, the second pipe support is horizontally fixed with the second pipe, one end of the second pipe is provided with the blowing head, the other end of the second pipe is provided with the second hose, and one end of the second hose away from the second pipe is connected with the outlet of the temperature control fan. The temperature control fan is fixed on the base, and the base is fixed on the base.

6. A food pre-pack spraying apparatus according to any one of claims 1 to 3, wherein An auxiliary feeding assembly is further fixed on the base corresponding to the feeding area, and the auxiliary feeding assembly comprises a first hinge support, an inverted T-shaped seat, a telescopic cylinder, an arc-shaped telescopic rod, a fixing bolt, a supporting seat, a second hinge support and a fixing knob. The inverted T-shaped seat is fixed on the base, the telescopic cylinder is hingedly connected to the vertical part of the inverted T-shaped seat through the first hinge support, the output end of the telescopic cylinder is hingedly connected to the bottom of the supporting seat through the second hinge support, and the second hinge support is further provided with the fixing knob for locking and fixing the supporting seat. The telescopic cylinder and the vertical part of the inverted T-shaped seat are further fixed with the arc-shaped telescopic rod, and the arc-shaped telescopic rod is provided with the fixing bolt for adjusting and locking.

7. The food product pre-pack spraying apparatus of claim 6, wherein, The detachable connection between the support and the second hinge support, and the top of the support is provided with a groove for placing the packaging box; The arc-shaped telescopic rod is a circular arc structure, and the center of the arc-shaped telescopic rod is located on the hinge shaft axis of the first hinge support.

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