An automatic sterilization device for food packaging room equipment

Abstract

This invention relates to the field of workshop sterilization technology, specifically to an automated sterilization device for food packaging equipment. It includes a base and a first slide rail installed below the conveyor belt of a food processing equipment. Two movable bases are slidably mounted on the first slide rail, and a first linear actuator drives the movable bases to move perpendicular to the conveyor belt's conveying direction. Each movable base is equipped with an arc-shaped slide rail, and each arc-shaped slide rail is equipped with an ultraviolet (UV) lamp. The UV lamp is slidably mounted on the inner wall of the arc-shaped slide rail via a mounting base. One of the UV lamp's mounting bases is equipped with a first drive unit that drives the mounting base to move along the arc-shaped slide rail. Both mounting bases are equipped with connecting parts. In this technical solution, the first drive unit drives the mounting base to move along the arc-shaped slide rail, allowing the two UV lamps to irradiate the upper and lower surfaces of the conveyor belt comprehensively, one at a higher elevation and the other at a lower elevation, thereby achieving automated sterilization of the conveyor belt.

Description

Technical Field

[0001] The invention relates to the technical field of workshop sterilization, and in particular to an automatic sterilization device for equipment in a food packaging room. Background Art

[0002] Due to the special nature of food, food packaging rooms are very prone to odor and bacteria growth. The effectiveness of existing protective measures in food workshops is not high, and most of them are disinfection and sterilization treatments for the operators themselves. There are no good double sterilization measures during work in the workshop and after work.

[0003] Chinese patent CN209221098U discloses a multifunctional sterilization device for a food workshop, including a load-bearing plate, a purification box and a disinfection box. The disinfection box is installed with bolts at both ends of the bottom of the load-bearing plate, and the purification box is installed between the disinfection boxes through a connecting plate. An air inlet is opened on one side of the bottom of the purification box, and an air outlet is opened on the other side of the bottom of the purification box. An air intake fan is installed in the air inlet by bolts, a dust filter group is installed on one side of the purification box through a sealing groove, and a formaldehyde removal filter group is installed on one side of the dust filter group.

[0004] The equipment discharges negative oxygen ions into the air flow to be discharged from the air outlet through an oxygen ion generator, and the first ultraviolet sterilization lamp sterilizes the passing air flow, and then cleans and sterilizes the circulating air. However, sterilizing the air alone cannot comprehensively sterilize the packaging and conveying devices of the food to be processed in the workshop. When the conveying device transports the food to be processed to the food processing device, bacteria on the surface of the food to be processed may remain on the working surface of the conveying device and contaminate the subsequent food to be processed. Summary of the invention

[0005] In view of the above problems, it is necessary to provide an automatic sterilization device for equipment in a food packaging room to address the problems of the prior art.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] The automatic sterilization device for equipment in a food packaging room comprises a base installed below a conveyor belt of a food processing equipment, a horizontal first slide rail being arranged on the base, two movable bases being slidably mounted on the first slide rail, and a first linear drive driving the movable base to move in a direction perpendicular to the conveying direction of the conveyor belt; an arcuate slide rail is installed on each movable base, the two arcuate slide rail openings are arranged opposite to each other, the arcuate slide rails are spliced ​​together to form a circular ring surrounding the circumference of the conveyor belt, an ultraviolet lamp is arranged on each arcuate slide rail, the working end of the ultraviolet lamp faces the center of the arcuate slide rail, the ultraviolet lamp is slidably mounted on the inner wall of the arcuate slide rail through a mounting seat, a first driving unit driving the mounting seat to move along the arcuate slide rail is arranged on the mounting seat of one of the ultraviolet lamps, connecting pieces are arranged on both mounting seats, and when the arcuate slide rails are spliced ​​together, the connecting pieces on the two mounting seats are connected; a positioning unit for fixing the initial position of the ultraviolet lamp on the arcuate slide rail is also arranged on the movable base.

[0008] Preferably, one side of the mounting seat that fits the inner wall of the arc-shaped slide rail is a arc-shaped fitting surface, the arc-shaped fitting surface has the same curvature as the inner wall of the arc-shaped slide rail, and an extension block extending radially along the arc-shaped slide rail is provided on the arc-shaped fitting surface, and the extension block extends to one side of the outer wall of the arc-shaped slide rail through a limiting hole groove provided on the arc-shaped slide rail; the first driving unit includes a driving gear rotatably mounted on the extension block, and a rotating driver driving the driving gear to rotate, and the rotating driver is fixedly mounted on the extension block; the axis of the driving gear is parallel to the axis of the arc-shaped slide rail, and the outer wall of the arc-shaped slide rail is provided with a tooth groove, and the driving gear is meshingly connected with the tooth groove.

[0009] Preferably, the connecting piece is a semicircular arc-shaped connecting plate, and the openings of the arc-shaped connecting plate on the mounting seats on both sides are arranged relatively to each other, the arc-shaped connecting plate is limited and installed in a limit frame set on the side wall of the arc-shaped slide rail, and the arc-shaped connecting plate and the mounting seat are fixedly connected by a frame plate; one of the arc-shaped connecting plates is provided with protruding plugs at both ends, and the plug extends along the length direction of the first slide rail, and the other arc-shaped connecting plate is provided with slots with the same width as the plug at both ends, and when the arc-shaped connecting plates are spliced ​​together, the plugs are inserted into the slots.

[0010] Preferably, the movable base is provided with a vertical connecting frame, which is fixedly connected to a side of the arc-shaped slide rail away from the limit frame; the connecting frame is provided with a second slide rail extending along the axial direction of the arc-shaped slide rail, the positioning unit includes a slide seat slidably installed in the second slide rail, a positioning rod is provided at one end of the slide seat facing the arc-shaped slide rail, and a positioning hole with the same diameter as the positioning rod is provided at one end of the mounting seat facing the slide seat, and when the first driving unit drives the ultraviolet lamp to move to the middle of the arc-shaped slide rail, the positioning hole and the positioning rod are in the same straight line; the positioning unit also includes a second driving unit that drives the slide seat to move along the second slide rail.

[0011] Preferably, a light shield is also installed on the slide seat, and when the positioning rod is inserted into the positioning hole, the light shield covers the working end of the arc-shaped slide rail.

[0012] The top of the driving mechanism is connected with the first gear of the driving member, and the transmission gear is connected with the gear of the driving member, and the transmission gear is connected with the gear of the driving member, and the transmission gear is connected with the gear of the driving member, and the transmission gear is connected with the gear of the driving member.

[0013] Preferably, the push plate is provided with a plurality of guide holes, the axes of the guide holes extend along the length direction of the first slide rail, and the movable base is provided with a first guide rod which is in the same straight line as the guide holes, and the first guide rod is inserted into the guide hole; a first spring is sleeved on the first guide rod, and the first spring elastically connects the movable base and the push plate, and the elastic force of the first spring causes the movable base to move away from the push plate.

[0014] Preferably, the connecting frames on the two push plates are arranged in parallel with the second slide rails.

[0015] Preferably, the side of the second rack away from the second transmission gear is connected to a second guide rod parallel to the second rack, the second guide rod is inserted in a guide sleeve, the guide sleeve is fixedly mounted on the movable base, and a second spring is sleeved on the second guide rod, the second spring elastically connects the guide sleeve and the second rack, and the elastic force of the second spring causes the first transmission gear to move toward the center direction of the first slide rail.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Firstly, two movable bases are slidably mounted on the base in the present invention, and the movable bases can move away from each other, so that the arc-shaped slide rail and the ultraviolet lamp on the arc-shaped slide rail are away from the conveyor belt of the food processing device, so as to avoid affecting the conveyor belt conveying the processed food. When the movable base moves to the arc-shaped slide rail and is spliced ​​together, a circular slide rail surrounding the circumference of the conveyor belt is formed. During the movement of the mounting base around the arc-shaped slide rail, the two ultraviolet lamps, one high and one low, respectively fully irradiate the upper and lower surfaces of the conveyor belt, thereby realizing automatic sterilization of the conveyor belt and preventing contamination during the subsequent transportation of the processed food.

[0018] Secondly, the mounting seat in the present invention is connected to the connecting parts, and the connecting parts are automatically spliced ​​together when the arc slide rails are spliced ​​together. When the first driving unit drives one of the connecting parts to move, it can drive the other connecting part to move in the limit frame through the connection between the plug and the slot, thereby realizing the synchronous movement of the two mounting seats, reducing the number of rotating drives and reducing production costs.

[0019] Thirdly, the slide seat in the present invention can move along the second slide rail so that the positioning rod is inserted into the positioning hole on the mounting seat, and the mounting seat is fixed in the middle of the arc-shaped slide rail. When the positioning rod supports the mounting seat, the rotary drive can stop working, avoiding causing greater pressure on the working end of the rotary drive, thereby increasing the service life of the rotary drive. It can also ensure that the openings of the arc-shaped connecting plates on both sides are relative and keep the plug and the slot in a horizontal state, which is convenient for the arc-shaped connecting plates to be connected.

[0020] Fourthly, in the present invention, the movable base and the push plate are elastically connected, and through the transmission connection of the first rack, the first transmission gear, the second transmission gear and the second rack, the positioning of the positioning rod on the mounting seat is automatically released when the arc slide rail is spliced ​​together, which is convenient for subsequent mobile irradiation and sterilization by the ultraviolet lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional picture of an automatic sterilization device for food packaging room in working condition;

[0022] Figure 2 yes Figure 1 A local enlarged view of point A;

[0023] Figure 3 It is a three-dimensional automatic sterilization device for food packaging room. Figure 1 ;

[0024] Figure 4 yes Figure 3 A partial enlarged view of point B;

[0025] Figure 5 It is a three-dimensional automatic sterilization device for food packaging room. Figure 2;

[0026] Figure 6 yes Figure 5 A partial enlarged view of point C;

[0027] Figure 7 yes Figure 5 A partial enlarged view of point D;

[0028] Figure 8 A three-dimensional structural analysis of an automated sterilization device for food packaging rooms Figure 1 ;

[0029] Fig. 9 yes Figure 8 A local enlarged view of point E;

[0030] Fig.10 A three-dimensional structural analysis of an automated sterilization device for food packaging rooms Figure 2 .

[0031] The numbers in the figure are: 1, base; 11, first slide rail; 12, mobile base; 121, connecting frame; 122, second slide rail; 123, first guide rod; 124, first spring; 13, first linear drive; 14, push plate; 141, top head; 142, top plate; 143, guide hole; 2, arc-shaped slide rail; 21, limit hole groove; 22, tooth groove; 23, limit frame; 3, ultraviolet lamp; 31, mounting seat; 311, arc-shaped fitting surface; 312, extension block; 313, positioning socket; 32, first drive unit Element; 321, driving gear; 322, rotating driver; 33, connecting piece; 331, arc-shaped connecting plate; 332, frame plate; 333, plug; 334, slot; 4, positioning unit; 41, slide seat; 411, positioning rod; 412, light shield; 413, first rack; 42, second driving unit; 421, shaft; 422, first transmission gear; 423, second transmission gear; 424, second rack; 425, contact plate; 426, second guide rod; 427, guide sleeve; 428, second spring. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Reference Figures 1 to 10 :

[0034] An automatic sterilization device for food packaging room equipment comprises a base 1 installed under the conveyor belt of food processing equipment, a horizontal first slide rail 11 is arranged on the base 1, two movable bases 12 are slidably installed on the first slide rail 11, and a first linear drive 13 drives the movable base 12 to move along a direction perpendicular to the conveying direction of the conveyor belt; each movable base 12 is installed with an arcuate slide rail 2, the two arcuate slide rails 2 are arranged with openings facing each other, the arcuate slide rails 2 are spliced ​​together to form a ring surrounding the circumference of the conveyor belt, and each arcuate slide rail 2 is provided with an ultraviolet light Spotlight 3, the working end of the ultraviolet lamp 3 is facing the center of the arc slide rail 2, and the ultraviolet lamp 3 is slidably installed on the inner wall of the arc slide rail 2 through a mounting seat 31. A first driving unit 32 for driving the mounting seat 31 to move along the arc slide rail 2 is provided on one of the mounting seats 31 of the ultraviolet lamp 3, and a connecting piece 33 is provided on both mounting seats 31. When the arc slide rail 2 is spliced ​​together, the connecting pieces 33 on the two mounting seats 31 are connected; a positioning unit 4 for fixing the initial position of the ultraviolet lamp 3 on the arc slide rail 2 is also provided on the mobile base 12.

[0035] The base 1 of the sterilization device in the present invention is installed under the conveyor belt of the food processing equipment. When the food processing equipment is in working state, the first linear drivers 13 at both ends of the base 1 drive the mobile base 12 to move to both ends of the base 1, so that the arc-shaped slide rail 2 and the ultraviolet lamp 3 on the arc-shaped slide rail 2 are away from the conveyor belt of the food processing device to avoid affecting the conveyor belt to transport the processed food. When the food processing is completed, the first linear driver 13 drives the two mobile bases 12 to approach each other until the arc-shaped slide rails 2 on the mobile base 12 are spliced ​​together to form a circular slide rail surrounding the circumference of the conveyor belt. At this time, the two arc-shaped slide rails 2, the connecting pieces 33 arranged on the mounting seats 31 for mounting the ultraviolet lamps 3 are spliced ​​together. When the first driving unit 32 drives one of the mounting seats 31 to reciprocate along the inner wall of the arc-shaped slide rail 2, the other mounting seat 31 drives the ultraviolet lamp 3 to move synchronously. The working end of the ultraviolet lamp 3 in this embodiment is toward the center of the arc-shaped slide rail 2. Therefore, in the process of the mounting seat 31 moving around the arc-shaped slide rail 2, the two ultraviolet lamps 3, one high and one low, respectively, fully irradiate the upper and lower surfaces of the conveyor belt, thereby realizing automatic sterilization of the conveyor belt and preventing contamination during the subsequent transportation of the processed food.

[0036] In order to solve the problem of how the first driving unit 32 drives the mounting seat 31 to move along the arc-shaped slide rail 2, the following features are specifically set:

[0037] One side of the mounting seat 31 that fits the inner wall of the arc-shaped slide rail 2 is an arc-shaped fitting surface 311, and the arc-shaped fitting surface 311 has the same curvature as the inner wall of the arc-shaped slide rail 2. An extension block 312 extending radially along the arc-shaped slide rail 2 is provided on the arc-shaped fitting surface 311, and the extension block 312 passes through the limiting hole groove 21 provided on the arc-shaped slide rail 2 and extends to one side of the outer wall of the arc-shaped slide rail 2; the first driving unit 32 includes a driving gear 321 rotatably mounted on the extension block 312, and a rotating driver 322 driving the driving gear 321 to rotate, and the rotating driver 322 is fixedly mounted on the extension block 312; the axis of the driving gear 321 is parallel to the axis of the arc-shaped slide rail 2, and the outer wall of the arc-shaped slide rail 2 is provided with a tooth groove 22, and the driving gear 321 is meshed and connected with the tooth groove 22.

[0038] The mounting seat 31 in this embodiment fits the inner wall of the arcuate slide rail 2 through the arcuate fitting surface 311, and the extension block 312 on the arcuate fitting surface 311 extends through the limiting hole groove 21 on the arcuate slide rail 2 to the outside of the arcuate slide rail 2. The driving gear 321 rotatably installed on the extension block 312 is meshed and connected with the tooth groove 22 on the outer wall of the arcuate slide rail 2. Therefore, when the rotary driver 322 drives the driving gear 321 to rotate, it can drive the driving gear 321 to move along the tooth groove 22, drive the mounting seat 31 to fit the inner wall of the arcuate slide rail 2 and move, and keep the working end of the ultraviolet lamp 3 toward the center of the arcuate slide rail 2 during movement to ensure irradiation of the conveyor belt. The rotary driver 322 in this embodiment can be a servo motor. When the mounting seat 31 moves, the extension block 312 moves in the limiting hole groove 21 of the arcuate slide rail 2 to keep the moving path stable.

[0039] In order to solve the problem of how to drive the two mounting seats 31 to move synchronously in the arc-shaped slide rail 2 through a rotary driver 322, the following features are specifically set:

[0040] The connecting member 33 is a semicircular arc-shaped connecting plate 331, and the openings of the arc-shaped connecting plates 331 on the mounting seats 31 on both sides are arranged opposite to each other. The arc-shaped connecting plate 331 is limitedly installed in the limit frame 23 set on the side wall of the arc-shaped slide rail 2, and the arc-shaped connecting plate 331 and the mounting seat 31 are fixedly connected by a frame plate 332; one of the arc-shaped connecting plates 331 is provided with a protruding plug 333 at both ends, and the plug 333 extends along the length direction of the first slide rail 11, and the other arc-shaped connecting plate 331 is provided with a slot 334 with the same width as the plug 333 at both ends. When the arc-shaped connecting plates 331 are spliced ​​together, the plug 333 is inserted into the slot 334.

[0041] The mounting seat 31 in this embodiment is connected to the arc-shaped connecting plate 331 through a frame plate 332. The arc-shaped connecting plate 331 has the same curvature as the arc-shaped slide rail 2 and is limitedly installed in the limit frame 23 on the side of the arc-shaped slide rail 2. The mobile base 12 is provided with a positioning unit 4 for positioning the initial position of the mounting seat 31. The positioning unit 4 fixes the mounting seat 31 at the center position of the arc-shaped slide rail 2, so that the two arc-shaped connecting plates 331 maintain an opening relative to each other. When the arc-shaped slide rail 2 follows the mobile base 12 to move horizontally to be spliced ​​together, the limit frames 23 on the arc-shaped slide rail 2 are spliced ​​together, and the arc-shaped connecting plates 331 in the limit frames 23 are spliced ​​together. Together, the plugs 333 at both ends of one arc-shaped connecting plate 331 are horizontally inserted into the slots 334 at both ends of the other arc-shaped connecting plate 331. Therefore, when the mounting seat 31 moves subsequently, the mounting seat 31 can drive the arc-shaped connecting plate 331 to rotate and move in the limit frame 23 through the frame plate 332, and at the same time drive the other connecting piece 33 to move in the limit frame 23 through the connection between the plug 333 and the slot 334, thereby realizing the synchronous movement of the two mounting seats 31 and performing comprehensive irradiation and sterilization on the conveyor belt. The presence of the connecting piece 33 in this embodiment reduces the number of rotating drivers 322 that drive the mounting seat 31 to move, thereby reducing production costs.

[0042] In order to solve the problem of how the positioning unit 4 fixes the initial position of the ultraviolet lamp 3, the following features are specifically set:

[0043] A vertical connecting frame 121 is provided on the movable base 12, and the connecting frame 121 is fixedly connected to the side of the arc-shaped slide rail 2 away from the limit frame 23; a second slide rail 122 extending along the axial direction of the arc-shaped slide rail 2 is provided on the connecting frame 121, and the positioning unit 4 includes a slide seat 41 slidably installed in the second slide rail 122, and a positioning rod 411 is provided at one end of the slide seat 41 facing the arc-shaped slide rail 2, and a positioning hole 313 with the same diameter as the positioning rod 411 is provided at one end of the mounting seat 31 facing the slide seat 41. When the first driving unit 32 drives the ultraviolet lamp 3 to move to the middle of the arc-shaped slide rail 2, the positioning hole 313 and the positioning rod 411 are in the same straight line; the positioning unit 4 also includes a second driving unit 42 that drives the slide seat 41 to move along the second slide rail 122.

[0044] The arc slide rail 2 in this embodiment is installed on the top of the connecting frame 121 set on the mobile base 12. The connecting frame 121 is located on the side of the arc slide rail 2 away from the limit frame 23 to avoid affecting the movement of the connecting member 33 in the limit frame 23. The slide seat 41 is slidably installed in the second slide rail 122 set on the connecting frame 121. The slide seat 41 can move along the second slide rail 122 to insert the positioning rod 411 into the positioning hole 313 on the mounting seat 31 to fix the mounting seat 31 in the middle of the arc slide rail 2. When the positioning rod 411 supports the mounting seat 31, the rotating driver 322 can stop working to avoid causing greater pressure on the working end of the rotating driver 322. The service life of the rotary driver 322 is improved, and the openings of the arc-shaped connecting plates 331 on both sides are ensured to be relative and keep the plug 333 and the slot 334 in a horizontal state. When the arc-shaped slide rail 2 is separated, the plug 333 can be disengaged from the slot 334 of the arc-shaped connecting plate 331 on the other side, thereby realizing the separation of the connecting piece 33. When the ultraviolet lamp 3 is needed to work, the slide seat 41 moves along the second slide rail 122 to disengage the positioning rod 411 from the positioning socket 313 of the mounting seat 31, so that the mounting seat 31 can drive the ultraviolet lamp 3 to move and irradiate the conveyor belt. After the sterilization is completed, the first drive unit 32 drives the mounting seat 31 to reset, and the slide seat 41 resets to fix the mounting seat 31.

[0045] In order to solve the problem of how to prevent a large amount of dust from adhering to the surface of the ultraviolet lamp 3 and affecting the sterilization effect, the following features are specifically set:

[0046] A light shield 412 is also installed on the slide seat 41 . When the positioning rod 411 is inserted into the positioning hole 313 , the light shield 412 covers the working end of the arc-shaped slide rail 2 .

[0047] A light shield 412 is also installed on the slide seat 41 in this embodiment. When the positioning rod 411 is inserted into the positioning hole 313 to lock the mounting seat 31, the light shield 412 covers the working end of the ultraviolet lamp 3 to prevent dust from adhering to the working end of the ultraviolet lamp 3. The light shield 412 can move with the slide seat 41. When the light shield 412 is separated from the working end of the ultraviolet lamp 3, the positioning rod 411 also releases the lock on the mounting seat 31, and the ultraviolet lamp 3 can be moved for sterilization.

[0048] In order to solve the problem of how to drive the positioning unit 4 to automatically unlock the mounting seat 31 after the arc-shaped slide rails 2 are spliced ​​together, the following features are specifically set:

[0049] The second driving unit 42 includes a shaft rod 421 rotatably mounted on the connecting frame 121, the axis of the shaft rod 421 is vertically arranged, a first transmission gear 422 is coaxially arranged on the top of the shaft rod 421, the first transmission gear 422 is meshed with a first rack 413 fixedly connected to the slide seat 41, and the first rack 413 extends along the length direction of the second slide rail 122; a second transmission gear 423 is coaxially arranged on the bottom of the shaft rod 421, the second transmission gear 423 is meshed with a second rack 424 slidably mounted on the mobile base 12, the second rack 424 extends along the length direction of the first slide rail 11, and the second rack 424 faces the other side. A contact plate 425 is provided at one end of the side movable base 12; the working end of the first linear drive 13 is fixedly connected to the push plate 14, and the push plate 14 includes a top head 141 extending along the length direction of the first slide rail 11, and a top plate 142 fixedly installed on the top head 141 at an end away from the push plate 14. The push plate 14 is elastically installed on the movable base 12. After the arc slide rail 2 is fitted, the top plate 142 continues to move toward the other side movable base 12 to push the second rack 424 to move to a position away from the center of the first slide rail 11. The rotation of the second transmission gear 423 and the first transmission gear 422 drives the light shield 412 to move in a direction away from the arc slide rail 2.

[0050] A plurality of guide holes 143 are provided on the push plate 14, and the axes of the guide holes 143 extend along the length direction of the first slide rail 11; a first guide rod 123 which is in the same straight line as the guide holes 143 is provided on the movable base 12, and the first guide rod 123 is inserted into the guide hole 143; a first spring 124 is sleeved on the first guide rod 123, and the first spring 124 elastically connects the movable base 12 and the push plate 14, and the elastic force of the first spring 124 causes the movable base 12 to move away from the push plate 14.

[0051] The connecting frame 121 and the second slide rail 122 on the two push plates 14 are arranged in parallel.

[0052] The side of the second rack 424 away from the second transmission gear 423 is connected to the second guide rod 426 parallel to the second rack 424, the second guide rod 426 is inserted in the guide sleeve 427, the guide sleeve 427 is fixedly mounted on the movable base 12, and the second guide rod 426 is sleeved with a second spring 428, the second spring 428 elastically connects the guide sleeve 427 and the second rack 424, and the elastic force of the second spring 428 causes the first transmission gear 422 to move toward the center direction of the first slide rail 11.

[0053] The first linear drive 13 in the present embodiment can be a cylinder, an oil cylinder or an electric push rod, etc. The first linear drive 13 is fixedly mounted at both ends of the base 1 and the working end is connected to the push plate 14 on the movable base 12. The push plate 14 is slidably mounted on the first guide rod 123 on the movable base 12 through the guide hole 143. When the working end of the first linear drive 13 pushes the push plate 14 to move toward the center of the base 1, the elastic force of the push plate 14 and the first spring 124 drives the movable base 12 and the movable base 12 to move synchronously. When the two movable bases 12 move to the arc slide rail 2 and are spliced ​​together, the movable base 12 cannot move. Therefore, the first linear drive 13 continues to push the push plate 14 to move, which can make the push plate 14 compress the first spring 124, and the push plate 14 moves relative to the movable base 12. The top plate 142 at the top of the head 141 contacts the contact plate 425 on the movable base 12 on the other side. The movement of the top plate 142 to the movable base 12 on the other side can drive the contact plate 425 and the second rack 424. The second rack 424 moves synchronously, and the movement of the second transmission gear 423, the first transmission gear 422 and the shaft 421 rotates. The rotation of the shaft 421 drives the first rack 413 on the slide 41 to move, so that the slide 41 moves in the second slide rail 122, so that the positioning rod 411 is separated from the positioning hole 313 of the mounting seat 31, and the first rack 413 is separated from the ultraviolet lamp 3, and the mounting seat 31 is automatically released, which is convenient for the subsequent movement and sterilization of the ultraviolet lamp 3; when the sterilization is completed The first driving unit 32 drives the mounting seat 31 to reset, and then the first linear drive 13 pulls the push plate 14 to reset. During the resetting process, the push plate 14 releases the pressure on the contact plate 425, and the second rack 424 is reset under the elastic force of the second spring 428, and at the same time drives the second transmission gear 423 and the first transmission gear 422 to rotate synchronously in the opposite direction, driving the slide 41 to reset, and the positioning rod 411 is reinserted into the positioning hole 313, and the first rack 413 covers the ultraviolet lamp 3 again.

[0054] Working principle: When the food processing equipment is in working state, the first linear drive 13 at both ends of the base 1 drives the mobile base 12 to move to the two ends of the base 1, so that the arc slide rail 2 and the ultraviolet lamp 3 on the arc slide rail 2 are away from the conveyor belt of the food processing device. When the food processing is completed, the first linear drive 13 drives the two mobile bases 12 to approach each other until the arc slide rails 2 on the mobile base 12 are spliced ​​together to form a circular slide rail surrounding the circumference of the conveyor belt. The positioning unit 4 releases the positioning of the mounting seat 31 for installing the ultraviolet lamp 3, and the connecting pieces 33 arranged on the two mounting seats 31 are spliced ​​together. When the first driving unit 32 drives one of the mounting seats 31 to move along the inner wall of the arc slide rail 2, the other mounting seat 31 drives the ultraviolet lamp 3 to move synchronously. In the process of the mounting seat 31 moving around the arc slide rail 2, the two ultraviolet lamps 3, one high and one low, respectively irradiate the upper and lower surfaces of the conveyor belt comprehensively, thereby realizing automatic sterilization of the conveyor belt.

[0055] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An automatic sterilization device for food packaging room, characterized in that: It comprises a base installed under the conveyor belt of the food processing equipment, a horizontal first slide rail is arranged on the base, two movable bases are slidably installed on the first slide rail, and a first linear drive driving the movable base to move in a direction perpendicular to the conveying direction of the conveyor belt; An arc-shaped slide rail is installed on each mobile base, and the openings of the two arc-shaped slide rails are arranged opposite to each other. The arc-shaped slide rails are spliced ​​together to form a ring surrounding the circumference of the conveyor belt. An ultraviolet lamp is arranged on each arc-shaped slide rail, and the working end of the ultraviolet lamp faces the center of the arc-shaped slide rail. The ultraviolet lamp is slidably installed on the inner wall of the arc-shaped slide rail through a mounting seat. A first driving unit for driving the mounting seat to move along the arc-shaped slide rail is arranged on the mounting seat of one of the ultraviolet lamps. Connecting pieces are arranged on the two mounting seats. When the arc-shaped slide rails are spliced ​​together, the connecting pieces on the two mounting seats are connected; The mobile base is also provided with a positioning unit for fixing the initial position of the ultraviolet irradiation lamp on the arc-shaped slide rail; A vertical connecting frame is provided on the mobile base, and the connecting frame is fixedly connected to a side of the arc-shaped slide rail away from the limiting frame; The connecting frame is provided with a second slide rail extending along the axis direction of the arc-shaped slide rail, the positioning unit includes a slide seat slidably mounted in the second slide rail, a positioning rod is provided at one end of the slide seat facing the arc-shaped slide rail, and a positioning hole with the same diameter as the positioning rod is provided at one end of the mounting seat facing the slide seat, and when the first driving unit drives the ultraviolet irradiation lamp to move to the middle of the arc-shaped slide rail, the positioning hole and the positioning rod are in the same straight line; The positioning unit also includes a second driving unit for driving the slide to move along the second slide rail; A light shield is also installed on the slide seat. When the positioning plug rod is inserted into the positioning plug hole, the light shield covers the working end of the arc-shaped slide rail.

2. The automatic sterilization device for food packaging room according to claim 1, characterized in that: One side of the mounting seat that fits the inner wall of the arc-shaped slide rail is an arc-shaped fitting surface, the arc-shaped fitting surface has the same curvature as the inner wall of the arc-shaped slide rail, and an extension block extending radially along the arc-shaped slide rail is provided on the arc-shaped fitting surface, and the extension block passes through the limiting hole groove provided on the arc-shaped slide rail and extends to one side of the outer wall of the arc-shaped slide rail; The first driving unit includes a driving gear rotatably mounted on the extension block, and a rotary driver driving the driving gear to rotate, wherein the rotary driver is fixedly mounted on the extension block; The axis of the driving gear is parallel to the axis of the arc-shaped slide rail, the outer wall of the arc-shaped slide rail is provided with tooth grooves, and the driving gear is meshed and connected with the tooth grooves.

3. The automatic sterilization device for food packaging room according to claim 2, characterized in that: The connecting piece is a semicircular arc-shaped connecting plate, the arc-shaped connecting plate openings on the mounting seats on both sides are arranged opposite to each other, the arc-shaped connecting plate is limitedly installed in a limit frame arranged on the side wall of the arc-shaped slide rail, and the arc-shaped connecting plate is fixedly connected to the mounting seat through a frame plate; One of the arc-shaped connecting plates is provided with protruding plugs at both ends, and the plugs extend along the length direction of the first slide rail. The other arc-shaped connecting plate is provided with slots with the same width as the plugs at both ends. When the arc-shaped connecting plates are spliced ​​together, the plugs are inserted into the slots.

4. The automatic sterilization device for food packaging room according to claim 1, characterized in that: The second driving unit includes a shaft rod rotatably mounted on the connecting frame, the axis of the shaft rod is vertically arranged, a first transmission gear is coaxially arranged on the top end of the shaft rod, the first transmission gear is meshedly connected with a first rack fixedly connected to the slide seat, and the first rack extends along the length direction of the second slide rail; A second transmission gear is coaxially arranged at the bottom of the shaft rod, and the second transmission gear is meshed and connected with a second rack slidably mounted on the movable base. The second rack extends along the length direction of the first slide rail, and a contact plate is arranged at one end of the second rack facing the movable base on the other side; The working end of the first linear drive is fixedly connected to a push plate, and the push plate includes a top head extending along the length direction of the first slide rail, and a top plate fixedly installed at an end of the top head away from the push plate. The push plate is elastically installed on a movable base. After the arc slide rail is fitted, the top plate continues to move toward the other side of the base, pushing the second rack to move to a position away from the center of the first slide rail. The rotation of the second transmission gear and the first transmission gear drives the light shield to move in a direction away from the arc slide rail.

5. The automatic sterilization device for food packaging room equipment according to claim 4, characterized in that: The push plate is provided with a plurality of guide holes, the axes of the guide holes extend along the length direction of the first slide rail, the movable base is provided with a first guide rod which is in the same straight line as the guide holes, and the first guide rod is inserted into the guide hole; A first spring is sleeved on the first guide rod, and the first spring elastically connects the movable base and the push plate. The elastic force of the first spring causes the movable base to move in a direction away from the push plate.

6. The automatic sterilization device for food packaging room according to claim 4, characterized in that: The connecting frames on the two push plates are arranged in parallel with the second slide rails.

7. The automatic sterilization device for food packaging room according to claim 4, characterized in that: The side of the second rack away from the second transmission gear is connected to a second guide rod parallel to the second rack, the second guide rod is inserted in the guide sleeve, the guide sleeve is fixedly installed on the movable base, and a second spring is sleeved on the second guide rod, the second spring elastically connects the guide sleeve and the second rack, and the elastic force of the second spring causes the first transmission gear to move toward the center direction of the first slide rail.

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