A kind of cooked food sealing packaging equipment

Abstract

The present invention relates to the field of sealed packaging of cooked food, specifically to a sealed packaging device for cooked food, comprising a workbench, a material transfer disc is rotatably mounted on the upper end of the workbench, and a capping unit and a heat sealing unit are provided on the upper end of the workbench, which are respectively located on the left and rear sides of the material transfer disc. The capping unit used in the present invention can guide and limit the adsorption, transfer and placement process of the cap, ensuring that the cap can be accurately placed in the correct position on the packaging box to avoid offset or misalignment, thereby improving the accuracy of heat sealing, and at the same time, it can also prevent the cap from shaking during movement, so that the cap can be stably placed on the packaging box, avoiding positioning deviation caused by shaking, ensuring that the placement position of each cap is consistent, thereby improving the quality consistency of the product.

Description

Technical Field

[0001] The invention relates to the field of sealed packaging of cooked food, in particular to a sealed packaging device for cooked food. Background Art

[0002] Sealed packaging of cooked food refers to a packaging method in which cooked food is placed in a packaging container under a sterile or clean environment and immediately sealed to prevent the entry of outside air, bacteria or contaminants. This packaging method can extend the shelf life of food, reduce the risk of food contamination during storage and transportation, and maintain the freshness and taste of food. Sealed packaging methods for cooked food mainly include vacuum packaging and heat-sealed packaging, among which heat-sealed packaging mainly refers to placing food in a packaging box or other container, then covering it with a layer of sealing material or plastic material and heating it to seal.

[0003] However, the following problems still exist in the process of heat-sealing cooked food: (1) The cap is easily misplaced during the process of the equipment adsorbing the cap and transferring it to the packaging box, which affects the docking accuracy between the cap and the packaging box, and then affects the final sealing effect and the consistency of the product packaging.

[0004] (2) Since the cover is light and easy to deform, if the cover placed on the packaging box is uneven, such as with wrinkles, it will not only affect the tightness of the fit between the cover and the edge of the packaging box, but also affect the appearance quality of the packaging.

[0005] Therefore, in order to solve the problems existing in the heat-sealed packaging process of cooked food, the present invention provides a sealed packaging device for cooked food. Summary of the invention

[0006] The present invention provides a cooked food sealing packaging device, comprising a workbench, a material transfer disc is rotatably installed on the upper end of the workbench, and a capping unit and a heat-sealing unit are respectively arranged on the left and rear sides of the material transfer disc; the capping unit comprises an electric push rod, a connecting plate is installed on the lower end of the pushing end of the electric push rod, and fixed plates are installed on both the front and rear ends of the connecting plate, and guide blocks evenly arranged in the circumferential direction are installed on the outside of the fixed plate, and an electric-controlled suction cup for adsorbing the cap is arranged on the lower end of the fixed plate, a bottom plate located on the rear side of the rotating column is installed on the upper end of the workbench, and two holding cylinders distributed on the left and right are installed on the upper end of the bottom plate, and the holding cylinders are provided with guide blocks and connecting plates evenly arranged in the circumferential direction and corresponding to the guide blocks and connecting plates A guide groove that slides together up and down, and a guide piece for guiding and limiting the downward movement of the electric-controlled suction cup is arranged on the upper end of the material transfer disc; a smoothing component for smoothing the cover is arranged on the rear side of the upper end of the material transfer disc, and the smoothing component includes two groups of adjustment parts distributed on the left and right and located above the corresponding circular through holes, and the adjustment parts include two moving rollers distributed on the left and right, and a control part for controlling the synchronous reverse movement of the two moving rollers is arranged between the left and right moving rollers; the heat sealing unit includes a heat sealing machine arranged on the upper end of the workbench and located on the rear side of the material transfer disc, and two moving columns distributed on the left and right and located above the corresponding adjustment parts are arranged on the front side of the heat sealing machine, an auxiliary pressing part is arranged inside the moving column, and an electric heating plate is arranged at the lower end of the moving column.

[0007] In one possible implementation, the upper end of the material transfer disc is provided with a plurality of groups of placement pieces evenly arranged circumferentially, the placement pieces include two circular through holes opened on the material transfer disc and symmetrically distributed about the center of the material transfer disc, and two baffles symmetrically distributed about the circular through holes are installed at positions corresponding to the circular through holes on the upper end of the material transfer disc.

[0008] In one possible implementation, a rotating column located on the left side of the material transfer disc is rotatably installed on the workbench, a rotating plate is installed on the upper end of the rotating column, an electric push rod is installed on the right end of the rotating plate, and a supporting circular plate rotatably connected to the rotating plate is installed on the upper end of the workbench. An arc-shaped through groove is provided on the supporting circular plate, which is slidably connected to the fixed section of the electric push rod, and the supporting circular plate and the arc-shaped through groove are both concentric with the rotating column.

[0009] In one possible implementation, the guide member includes a guide column, a support plate is installed on the connecting plate, a clamping block is installed at the position of the upper end of the material transfer disc corresponding to the placement piece, the clamping block is located on the side of the corresponding placement piece away from the center of the material transfer disc, a guide column is installed on the upper end of the clamping block, and a rotating ring fixedly mounted on the outside of the rotating column is provided at the upper end of the workbench, and a limiting rod is installed on the outer side of the rotating ring.

[0010] In one possible implementation, the auxiliary pressure piece includes an inner rod, and circular grooves are provided at the lower ends of the left and right movable columns. The inner rod is rotatably installed inside the circular groove, and two pressure rollers symmetrically distributed about the center of the movable column are rotatably installed at the lower end of the inner rod.

[0011] In one possible implementation, the heat sealing machine is provided with two vertical guide rails distributed on the left and right sides at the front side, an electric slide plate is slidably installed on the vertical guide rails, a horizontal plate is installed between the front ends of the left and right electric slide plates, a side plate is connected between the left and right movable columns, a fixed rod fixedly connected to the lower end surface of the horizontal plate is installed on the side of the left and right movable columns away from the side plate, a rotating shaft that rotates and passes through the corresponding movable column is installed in the middle of the upper ends of the left and right inner rods, a driven gear rotatably installed under the horizontal plate is installed on the upper end of the rotating shaft, a driving gear rotatably installed on the upper end of the side plate is meshed between the left and right driven gears, and the upper end surface of the driving gear is connected to the output shaft of the motor 1 installed on the horizontal plate.

[0012] In one possible implementation, the adjustment member also includes an inverted shaped plate, and the movable rollers are rotatably installed between the front and rear vertical sections of the corresponding inverted shaped plate. The control member includes a connecting rod. The front sides of the upper ends of the horizontal sections of the left and right inverted shaped plates in the same group of adjustment members are hinged with connecting rods through pins, and the other ends of the two connecting rods are hinged together at the lower end of the control block. The left and right control blocks are installed at the lower end of the same push plate, and a number of inverted shaped plates are slidably installed left and right at the lower end of the same rectangular frame. The front and rear sides of the rectangular frame are provided with strip-shaped through grooves connected to the pins for left and right sliding.

[0013] In one possible implementation, a support plate is installed at the front end of the rectangular frame, a cylindrical guide rail is installed in the middle of the upper end of the support plate, an automatic sliding block fixedly connected to the push plate is slidably installed on the cylindrical guide rail, two automatic telescopic rods distributed on the left and right are installed at the lower end of the support plate, the automatic telescopic rods are installed on a support seat located at the upper end of the material moving disc, a bottom column that rotates and passes through the center of the material moving disc is installed at the lower end of the support seat, two movable grooves symmetrically distributed along the circumference of the circular through hole are opened at the position of the upper end of the material moving disc corresponding to the circular through hole, and the front and rear vertical sections of the inverted plate are slidably connected to the corresponding movable grooves.

[0014] In one possible implementation, a circular through groove coaxial with the material transfer disc is opened at the lower end of the workbench, a linkage assembly is connected between the cover laying unit and the smoothing assembly, the linkage assembly includes a connecting pulley, the lower ends of the rotating column and the bottom column are both equipped with connecting pulleys located below the workbench, a belt 1 is connected between the left and right connecting pulleys, the lower end of the connecting pulley on the left is connected to the output shaft of motor 2, and motor 2 is installed at the lower end of the workbench through a support.

[0015] In one possible implementation, a sleeve is installed on the lower end of the material transfer disc and is sleeved on the outside of the base column. A matching pulley is installed on the lower end of the sleeve. A rotating pulley is rotatably installed on the lower right end of the workbench. The matching pulley is connected to the rotating pulley through belt 2. The lower end of the rotating pulley is connected to the output shaft of motor 3. Motor 3 is installed on the lower end of the workbench through a mounting seat.

[0016] Beneficial effects of the present invention: 1. The cap laying unit adopted in the present invention can guide and limit the adsorption, transfer and placement processes of the cap, ensuring that the cap can be accurately placed in the correct position on the packaging round box to avoid offset or misalignment, thereby improving the accuracy of heat sealing. At the same time, it can also prevent the cap from shaking during movement, so that the cap can be placed stably on the packaging round box to avoid positioning deviation caused by shaking, ensure that the placement position of each cap is consistent, thereby improving the quality consistency of the product.

[0017] 2. The present invention smoothes and presses the cover placed on the packaging box through a smoothing component to ensure the flatness of the cover surface and avoid wrinkles, thereby improving the appearance quality of the packaging and ensuring that the cover can be better and tightly combined with the edge of the packaging box during heat sealing, thereby improving the sealing effect and sealing quality.

[0018] 3. The auxiliary pressing piece used in the present invention can dynamically roll the joint between the cover and the packaging box through a circumferentially rotating pressure roller, so as to improve the heat sealing quality. At the same time, the pressure roller can provide uniform pressure distribution on the entire circumference of the joint between the cover and the packaging box, so that the cover and the packaging box are in closer contact, which is conducive to forming a consistent sealing effect, avoiding poor sealing due to insufficient local pressure, and further helping to increase the sealing strength.

[0019] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a cooked food sealed packaging device provided by an embodiment of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the cover laying unit of the present invention.

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the guide member and the linkage assembly of the present invention.

[0024] Figure 4It is a schematic diagram of the three-dimensional structure of the smoothing component of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the adjusting member and the control member of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the heat sealing unit of the present invention.

[0027] Figure 7 It is a schematic diagram of the half-section plan structure of the auxiliary pressing piece, the round packaging box and the sealing cover of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the auxiliary pressing piece of the present invention.

[0029] In the figure: 1. workbench; 11. material transfer disc; 111. baffle; 112. circular groove; 113. sleeve; 114. matching pulley; 115. rotating pulley; 116. belt two; 117. motor three; 121. moving roller; 122. inverted plate; 123. connecting rod; 124. control block; 125. push plate; 126. rectangular frame; 127. strip groove; 128. support plate; 129. cylindrical guide rail; 131. automatic slider; 132. automatic telescopic rod; 133. support seat; 134. moving groove; 135. connecting pulley; 136. bottom column; 137. belt one; 138. motor two; 2. capping laying unit; 211. Rotating column; 212, rotating plate; 213, electric push rod; 214, supporting circular plate; 215, arc-shaped through groove; 216, fixing plate; 217, guide block; 218, electric control suction cup; 219, holding cylinder; 221, guide groove; 222, guide column; 223, supporting plate; 224, clamping block; 225, limiting rod; 3, heat sealing unit; 31, heat sealing machine; 311, vertical guide rail; 312, electric slide plate; 313, horizontal plate; 314, moving column; 315, side plate; 316, electric heating plate; 317, inner rod; 318, circular groove; 319, pressure roller; 321, rotating shaft; 322, driven gear; 323, driving gear; 324, motor 1. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] See also Figure 1A cooked food sealed packaging equipment comprises a workbench 1, a material transfer disc 11 is rotatably installed on the upper end of the workbench 1, a capping unit 2 and a heat sealing unit 3 are respectively arranged on the left and rear sides of the material transfer disc 11 on the upper end of the workbench 1, the front side of the workbench 1 is a loading station for loading packaging round boxes and cooked food, and the right side of the workbench 1 is a unloading station for unloading sealed and packaged cooked food (the existing equipment involved in the loading station and the unloading station are not shown in the figure).

[0032] See also Figure 1 , Figure 2 and Figure 3 The upper end of the material transfer disc 11 is provided with multiple groups of placement pieces that are evenly arranged in the circumferential direction. The placement pieces include two circular through holes opened on the material transfer disc 11 and symmetrically distributed about the center of the material transfer disc 11. The circular through holes are used to place packaging round boxes. Two baffles 111 symmetrically distributed about the circular through holes are installed at the positions corresponding to the circular through holes on the upper end of the material transfer disc 11. A circular through groove 112 concentric with the material transfer disc 11 is opened at the lower end of the workbench 1. A sleeve 113 is installed at the lower end of the material transfer disc 11. A matching pulley 114 is sleeved at the lower end of the sleeve 113. A rotating pulley 115 is rotatably installed at the lower right end of the workbench 1. The matching pulley 114 is transmission-connected to the rotating pulley 115 through a belt 2 116. The lower end of the rotating pulley 115 is connected to the output shaft of a motor 3 117. The motor 3 117 is installed at the lower end of the workbench 1 through a mounting seat.

[0033] During operation: First, two packaging round boxes need to be placed into the corresponding circular through holes located in front of the material transfer disc 11 at the loading station, and the lower side of the edge of the upper end of the packaging round box fits with the upper end face of the material transfer disc 11. At the same time, the edge protrusions on both sides of the packaging round box can be placed between the corresponding two baffles 111. The edge protrusions of the packaging round box are for the convenience of subsequent opening, and the cover does not stick to the upper end face of the packaging round box here. The baffle 111 can be used to limit the placement of the packaging round box and unify the orientation of the packaging round box to ensure that the subsequent packaging round box can be accurately and consistently matched with the cover. After the placement of the packaging round box is completed, the prepared cooked food can be put into the corresponding packaging round box through existing equipment.

[0034] Next, the rotating pulley 115 can be driven by motor three 117 to rotate clockwise, and the rotating pulley 115 drives the matching pulley 114 to rotate synchronously through belt two 116, and the matching drive drives the material transfer disc 11 to rotate synchronously through sleeve 113, until the material transfer disc 11 drives the packaging round box containing cooked food to rotate ninety degrees clockwise, and the motor three 117 stops working. At this time, the packaging round box containing cooked food is just located at the position of the cover laying unit 2. Subsequently, the material transfer disc 11 can be controlled to rotate intermittently by motor three 117 in the same way, and the loading of the packaging round box and cooked food, the laying of the cover, the heat sealing of the packaging box and the cover, and the unloading of the cooked food after sealed packaging are completed in sequence.

[0035] See also Figure 1 , Figure 2 and Figure 3 The capping laying unit 2 includes a rotating column 211 which is rotatably mounted on the upper end of the workbench 1 and is located on the left side of the material transfer disc 11. A rotating plate 212 is mounted on the upper end of the rotating column 211, and an electric push rod 213 is mounted on the right end of the rotating plate 212. A supporting circular plate 214 which is rotatably connected to the rotating plate 212 is mounted on the upper end of the workbench 1. An arc-shaped through groove 215 which is slidably connected to the fixed section of the electric push rod 213 is provided on the supporting circular plate 214. The supporting circular plate 214 and the arc-shaped through groove 215 are both concentric with the rotating column 211. A connecting plate is mounted on the lower end of the pushing end of the electric push rod 213. Fixed plates 216 are mounted on both the front and rear ends of the connecting plate. Guide blocks 217 arranged evenly in the circumferential direction are mounted on the outside of the fixed plate 216. An electrically controlled suction cup 218 for adsorbing the cap is arranged at the lower end of the fixed plate 216. The workbench A bottom plate located at the rear side of the rotating column 211 is installed at the upper end of the bottom plate, and two holding cylinders 219 distributed on the left and right are installed at the upper end of the bottom plate. The holding cylinders 219 are provided with guide grooves 221 that are evenly arranged in the circumferential direction and slide up and down with the corresponding guide blocks 217 and the connecting plate. A guide member for guiding and limiting the downward movement of the electric control suction cup 218 is provided at the upper end of the material transfer disc 11. The guide member includes a guide column 222, and a support plate 223 is installed on the connecting plate. A clamping block 224 is installed at the position of the corresponding placement piece at the upper end of the material transfer disc 11. The clamping block 224 is located on the side of the corresponding placement piece away from the center of the material transfer disc 11, and a guide column 222 is installed at the upper end of the clamping block 224. A rotating ring fixedly sleeved on the outside of the rotating column 211 is provided at the upper end of the workbench 1, and a limiting rod 225 is installed on the outer side of the rotating ring.

[0036] See also Figure 1 , Figure 4 and Figure 5A smoothing component for smoothing the cover is provided at the rear side of the upper end of the material transfer disc 11, and the smoothing component includes two groups of adjustment parts distributed on the left and right and located above the corresponding circular through holes, and the adjustment parts include two moving rollers 121 distributed on the left and right, and the moving rollers 121 are rotatably installed between the front and rear vertical sections of the inverted shaped plate 122, and a control part for controlling the synchronous reverse movement of the two is provided between the left and right moving rollers 121, and the control part includes a connecting rod 123, and the connecting rod 123 is hinged to the front side of the upper end of the horizontal section of the left and right inverted shaped plates 122 in the same group of adjustment parts through a pin shaft, and the other ends of the two connecting rods 123 are hinged to the lower end of the control block 124 together, and the left and right control blocks 124 are installed at the lower end of the same push plate 125, and a plurality of inverted shaped plates 122 are slidably installed at the lower end of the same rectangular frame 126. The front and rear sides of 26 are provided with strip-shaped through grooves 127 which are slidably connected to the pin shaft left and right. A support plate 128 is installed at the front end of the rectangular frame 126. A cylindrical guide rail 129 is installed in the middle of the upper end of the support plate 128. An automatic slider 131 fixedly connected to the push plate 125 is slidably installed on the cylindrical guide rail 129. Two automatic telescopic rods 132 distributed on the left and right are installed at the lower end of the support plate 128. The automatic telescopic rods 132 are installed on a support seat 133 located at the upper end of the material shifting disc 11. A bottom column 136 which rotates through the center of the material shifting disc 11 and is located inside the sleeve 113 is installed at the lower end of the support seat 133. Two movable grooves 134 which are symmetrically distributed along the circumference of the circular through hole are opened at the position corresponding to the circular through hole at the upper end of the material shifting disc 11. The front and rear vertical sections of the inverted plate 122 are slidably connected to the corresponding movable grooves 134.

[0037] See also Figure 3 and Figure 4 A linkage assembly is connected between the capping laying unit 2 and the smoothing assembly, and the linkage assembly includes a connecting pulley 135. The lower ends of the rotating column 211 and the bottom column 136 are both equipped with connecting pulleys 135 located below the workbench 1. A belt 137 is connected between the left and right connecting pulleys 135. The lower end of the connecting pulley 135 on the left is connected to the output shaft of the motor 2 138. The motor 2 138 is installed at the lower end of the workbench 1 through a support.

[0038] During operation: In the initial state, the electric push rod 213, the connecting plate, the fixed plate 216 and the electric control suction cup 218 are all located above the containing cylinder 219. A number of sealing caps are stacked and placed in the left and right containing cylinders 219. In the process of placing the packaging round box and cooked food, the electric push rod 213 can push the fixed plate 216 and the electric control suction cup 218 to move down to the corresponding containing cylinder 219 synchronously through the connecting plate. The electric control suction cup 218 moved down to the containing cylinder 219 can adsorb the sealing cap located at the top. After the sealing cap is firmly adsorbed by the electric control suction cup 218, the electric push rod 213 The movable push rod 213 can drive the fixed plate 216, the electric-controlled suction cup 218 and the adsorbed cap to move up and reset synchronously to a position away from the containing cylinder 219 through the connecting plate. In the above process, the fixed plate 216 can move up and down along the guide groove 221 on the corresponding containing cylinder 219 through the connecting plate and the guide blocks 217 evenly arranged circumferentially. The cooperation between the guide blocks 217, the connecting plate and the guide groove 221 can guide and limit the up and down movement of the fixed plate 216 and the electric-controlled suction cup 218, thereby ensuring the accuracy and stability of the electric-controlled suction cup 218 in the process of adsorbing the cap.

[0039] In the process of the material transfer disc 11 transferring the packaging round box containing cooked food to the position of the cover laying unit 2, the circumferentially evenly arranged block 224 rotates synchronously with the material transfer disc 11. At the same time, the connecting pulley 135 on the left side can be driven by the motor 2 138 to rotate clockwise by 90 degrees. The connecting pulley 135 on the left side drives the rotating plate 212 and the electric push rod 213 to rotate synchronously through the rotating column 211, and the rotating ring and the limiting rod 225 rotate synchronously therewith. In this process, the electric push rod 213 can rotate clockwise along the arc through groove 215, and the movement of the electric push rod 213 can be guided and limited by the arc through groove 215, which can ensure that the fixed plate 21 6 and the accuracy of the moving position of the electric-controlled suction cup 218, and can also improve the stability of the electric-controlled suction cup 218 in the process of adsorbing the cover and moving. The electric push rod 213 drives the fixed plate 216, the electric-controlled suction cup 218 and the cover to rotate clockwise by 90 degrees synchronously through the connecting plate to be located above the material transfer disc 11. The corresponding clamping block 224 that rotates 90 degrees clockwise with the material transfer disc 11 just conflicts with the limiting rod 225 that has been rotated to the corresponding position. At this time, the electric-controlled suction cup 218 and the cover are just located above the corresponding packaging box. The cooperation between the limiting rod 225 and the clamping block 224 can be used to limit the intermittent rotation of the material transfer disc 11, thereby improving the accuracy of the packaging box transfer.

[0040] Subsequently, the electric push rod 213 can push the fixing plate 216, the electric control suction cup 218 and the cover to move downward synchronously through the connecting plate, and the support plate 223 gradually moves downward with the connecting plate to slide up and down with the guide column 222. The cooperation between the support plate 223 and the guide column 222 can guide and limit the downward movement of the cover, ensuring that the cover can be accurately placed in the correct position on the packaging round box to avoid offset or misalignment, thereby improving the accuracy of subsequent heat sealing, and at the same time, it can also prevent the electric control suction cup 218 from moving. Shake to place the cap steadily on the packaging box to avoid positioning deviation caused by shaking, ensure that each cap is placed in the same position, thereby improving the quality consistency of the product. After the cap is close to the packaging box, the electric suction cup 218 can release the adsorption of the cap and place the cap on the upper end of the packaging box. The cap can completely cover the opening of the packaging box, and then the fixing plate 216 and the electric suction cup 218 can be reset to above the containing cylinder 219 through the cooperation between the electric push rod 213 and the motor 2 138.

[0041] In the initial state, the smoothing component is located above the left side of the material transfer disc 11. When the motor 2 138 drives the connecting pulley 135 on the left side to rotate, the connecting pulley 135 on the right side rotates synchronously therewith through the belt 1 137. The connecting pulley 135 on the right side drives the supporting seat 133, the automatic telescopic rod 132, the support plate 128, the rectangular frame 126, the control part and the adjustment part to rotate synchronously as a whole through the bottom column 136. When the cover is placed on the packaging box, the smoothing component is located above the rear side of the material transfer disc 11. After the fixing plate 216 and the electric control suction cup 218 are reset to the corresponding holding cylinder 219, the smoothing component is just located above the packaging round box with the cover. During this process, the two automatic telescopic rods 132 can simultaneously drive the supporting plate 128 and the rectangular frame 126 to move downward, and the rectangular frame 126 drives the control member and the adjustment member to move downward synchronously until the moving rollers 121 in different adjustment members move downward at the same time to fit with the corresponding cover, and the front and rear vertical sections of the inverted plate 122 enter the corresponding moving grooves 134, and then the automatic slider can be used to move the supporting plate 128 and the rectangular frame 126 downward. The push plate 125 is driven to move downward along the cylindrical guide rail 129 by the push plate 125, and the push plate 125 pushes the two control blocks 124 to move downward synchronously, and the control blocks 124 drive the corresponding two connecting rods 123 to move downward synchronously and rotate accordingly, and the two connecting rods 123 in the same control member can move synchronously in the opposite direction along the strip-shaped through grooves 127 on the front and rear sides of the rectangular frame 126 through the pin shaft, and the inverted plate 122 drives the moving roller 121 to move synchronously with the corresponding connecting rod 123, and moves the moving roller 121 to the edge where the cover and the packaging box are attached, and moves the concave plate 122 to the edge where the cover and the packaging box are attached. The groove 134 can support and guide the movement of the inverted plate 122 to ensure that the moving roller 121 can move stably in close contact with the cover. The two moving rollers 121 on the same packaging box and the cover can rotate at the same time when they move in opposite directions in close contact with the cover, so as to smoothly smooth and press the cover on the packaging box from the middle to both sides. The smoothing process can ensure that the surface of the cover is smooth and flat to avoid wrinkles, and ensure that the cover can be better and tightly combined with the edge of the packaging box during subsequent heat sealing, thereby improving the sealing effect and the quality of the packaging appearance.

[0042] During the process of smoothing the cap by the smoothing component, the electrically controlled suction cup 218 can again absorb the cap in the containing cylinder 219 in the same way to prepare for the next cap laying. At the same time, a new packaging box can be placed in the circular through hole corresponding to the material transfer disc 11 at the loading station again, and the cooked food can be placed in the corresponding packaging box. Then, the material transfer disc 11 can be driven by motor three 117 to rotate ninety degrees clockwise. At the same time, the cap laying unit 2 and the smoothing component can be driven by motor two 138 to rotate ninety degrees clockwise synchronously. During this process, the moving roller 121 always keeps the state of pressing the corresponding cap. The smoothed and pressed cap, packaging box and smoothing component are synchronously moved to the position of the heat sealing unit 3, and then the packaging box with cooked food can be sealed by the heat sealing unit 3.

[0043] See also Figure 1 , Figure 6 , Figure 7 and Figure 8 The heat sealing unit 3 includes a heat sealing machine 31 arranged at the upper end of the workbench 1 and located at the rear side of the material transfer disc 11, two vertical guide rails 311 distributed on the left and right are arranged on the front side of the heat sealing machine 31, an electric slide 312 is slidably installed on the vertical guide rail 311, a horizontal plate 313 is installed between the front ends of the left and right electric slides 312, and two moving columns 314 distributed on the left and right and located above the corresponding adjustment parts are arranged at the lower end of the horizontal plate 313, a side plate 315 is connected between the left and right moving columns 314, and a fixing rod fixedly connected to the lower end surface of the horizontal plate 313 is installed on the side of the left and right moving columns 314 away from the side plate 315, an electric heating plate 316 is arranged at the lower end of the moving column 314, and the diameter of the electric heating plate 316 is larger than the diameter of the cover. An auxiliary pressure piece is arranged inside 314, and the auxiliary pressure piece includes an inner rod 317. A circular groove 318 is opened at the lower end of the left and right moving columns 314, and the inner rod 317 is rotatably installed inside the circular groove 318. Two pressure rollers 319 symmetrically distributed about the center of the moving column 314 are rotatably installed at the lower end of the inner rod 317. A rotating shaft 321 that rotates and passes through the corresponding moving column 314 is installed in the middle of the upper end of the left and right inner rods 317. A driven gear 322 rotatably installed below the cross plate 313 is installed on the upper end of the rotating shaft 321. A driving gear 323 rotatably installed on the upper end of the side plate 315 is meshed between the left and right driven gears 322, and the upper end surface of the driving gear 323 is connected to the output shaft of a motor 324 installed on the cross plate 313.

[0044] See also Figure 1-Figure 8When working: the left and right electric slides 312 simultaneously drive the horizontal plate 313 to move downward along the corresponding vertical guide rails 311, and the horizontal plate 313 drives the left and right moving columns 314 and the electric heating plate 316 to move downward synchronously through the fixed rod, and the motor 1 324, the side plate 315, the driven gear 322 and the driving gear 323 move downward synchronously. Before the electric heating plate 316 moves down to contact with the cover, the push plate 125 can be driven to continue to move downward by the automatic slider 131, and the two moving rollers 121 pressed on the same cover continue to move synchronously in the opposite direction to leave the cover, so as to avoid the adjustment part and the control part affecting the downward movement of the electric heating plate 316. In the process of the moving roller 121 leaving the cover, the moving column 314 drives the electric heating plate 316 to move down to fit the cover, and the electric heating plate 316 has been adjusted to a suitable temperature in advance. At this time, the electric heating plate 316 melts the hot melt adhesive at the junction between the cover and the packaging box, so that the cover and the packaging box are bonded together.

[0045] During the process of the electric heating plate 316 pressing the cover, the motor 324 can also drive the driving gear 323 to rotate quickly, and the driving gear 323 drives the driven gears 322 on both sides thereof to rotate synchronously, and the driven gear 322 drives the corresponding inner rod 317 and the pressure roller 319 to rotate synchronously around the circular groove 318 through the rotating shaft 321. In addition, the pressure roller 319 spans the fitting area between the cover and the edge of the packaging box, so the pressure roller 319 can apply circumferential extrusion force to the joint between the cover and the packaging box through the electric heating plate 316 during the heat sealing process. The pressure roller 319 can provide uniform pressure distribution on the entire circumference of the joint between the cover and the packaging box, so that the cover and the packaging box are in closer contact, which is conducive to forming a consistent sealing effect, avoiding poor sealing due to insufficient local pressure, and effectively increasing the sealing strength.

[0046] After the sealing cover and the packaging box are bonded together, the two moving columns 314 and the electric heating plate 316 can be driven by the left and right electric slides 312 to move upward and reset synchronously away from the material transfer disc 11, so that the heat-sealed area can be cooled naturally to ensure that the sealing cover and the packaging box are firmly bonded together. At the same time, the automatic telescopic rod 132 can be used to push the support plate 128 to move upward and reset. The support plate 128 drives the control part and the adjustment part to move upward and reset synchronously through the rectangular frame 126, so that the moving roller 121 is away from the heat-sealed packaging box, and the vertical section of the inverted plate 122 is separated from the moving groove 134 on the material transfer disc 11. Then, the two moving rollers 121 in the two groups of adjustment parts and the inverted plate 122 can be driven to move toward each other synchronously and reset synchronously through the cooperation between the automatic slider 131, the push plate 125 and the control part. During the process, the absorbed cap can be laid on the packaging round box on the corresponding workstation in the same manner as described above, and then the cap laying unit 2 and the smoothing component can be synchronously rotated counterclockwise by ninety degrees. At this time, the cap laying unit 2 can again absorb the cap through the electrically controlled suction cup 218, and the smoothing component can level the cap placed on the packaging round box at this time. Then, the material transfer disc 11, the cap laying unit 2 and the smoothing component are rotated clockwise again in the above manner. At this time, the smoothed and pressed cap and the packaging round box are moved to the position of the heat sealing unit 3, and the sealed packaging round box can be moved to the unloading workstation with the material transfer disc 11. The two sealed packaging round boxes can be removed at the same time through the existing equipment, so that the sealed cooked food can be obtained. Subsequently, the assembly line sealed packaging operation of the cooked food is completed according to the above.

[0047] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed packaging device for cooked food, comprising a workbench (1), a material transfer disc (11) being rotatably mounted on the upper end of the workbench (1), characterized in that: The upper end of the workbench (1) is provided with a capping unit (2) and a heat sealing unit (3) which are respectively located on the left side and the rear side of the material transfer disc (11); The capping laying unit (2) comprises an electric push rod (213), a connecting plate is installed at the lower end of the pushing end of the electric push rod (213), a fixing plate (216) is installed at both the front and rear ends of the fixing plate, a guide block (217) arranged evenly in the circumferential direction is installed outside the fixing plate (216), an electric control suction cup (218) for adsorbing the cap is arranged at the lower end of the fixing plate (216), a bottom plate located at the rear side of the rotating column (211) is installed at the upper end of the workbench (1), two holding cylinders (219) distributed on the left and right are installed at the upper end of the bottom plate, the holding cylinders (219) are provided with guide grooves (221) arranged evenly in the circumferential direction and slidably matched with the corresponding guide blocks (217) and the connecting plate, and a guide member for guiding and limiting the downward movement of the electric control suction cup (218) is arranged at the upper end of the material transfer disc (11); A smoothing component for smoothing the cover is arranged at the rear side of the upper end of the material transfer disc (11), the smoothing component comprising two groups of adjustment parts distributed on the left and right and located above the corresponding circular through holes, the adjustment parts comprising two moving rollers (121) distributed on the left and right, and a control part for controlling the synchronous reverse movement of the two moving rollers (121) is arranged between the two moving rollers (121); The heat sealing unit (3) comprises a heat sealing machine (31) arranged at the upper end of the workbench (1) and located at the rear side of the material transfer disc (11); two movable columns (314) are arranged on the front side of the heat sealing machine (31) and are distributed on the left and right and are located above the corresponding adjustment parts; an auxiliary pressing part is arranged inside the movable column (314); and an electric heating plate (316) is arranged at the lower end of the movable column (314); The auxiliary pressing member comprises an inner rod (317), and a circular groove (318) is provided at the lower ends of the left and right movable columns (314), the inner rod (317) is rotatably installed inside the circular groove (318), and two pressing rollers (319) symmetrically distributed about the center of the movable column (314) are rotatably installed at the lower end of the inner rod (317); The front side of the heat sealing machine (31) is provided with two vertical guide rails (311) distributed on the left and right, an electric slide plate (312) is slidably installed on the vertical guide rails (311), a horizontal plate (313) is installed between the front ends of the left and right electric slide plates (312), a side plate (315) is connected between the left and right moving columns (314), and a fixing rod fixedly connected to the lower end surface of the horizontal plate (313) is installed on the side of the left and right moving columns (314) away from the side plate (315). A rotating shaft (321) rotatably penetrating the corresponding moving column (314) is installed at the middle of the upper end of each inner rod (317); a driven gear (322) rotatably installed below the horizontal plate (313) is installed at the upper end of the rotating shaft (321); a driving gear (323) rotatably installed on the upper end of the side plate (315) is meshed between the left and right driven gears (322); and the upper end surface of the driving gear (323) is connected to the output shaft of a motor 1 (324) installed on the horizontal plate (313).

2. The cooked food sealing packaging equipment according to claim 1, characterized in that: The upper end of the material transfer disc (11) is provided with a plurality of groups of placement pieces evenly arranged in the circumferential direction, the placement pieces comprising two circular through holes opened on the material transfer disc (11) and symmetrically distributed about the center of the material transfer disc (11), and two baffles (111) symmetrically distributed about the circular through holes are installed at positions corresponding to the circular through holes on the upper end of the material transfer disc (11).

3. The cooked food sealing packaging equipment according to claim 1, characterized in that: A rotating column (211) is rotatably mounted on the workbench (1) and is located on the left side of the material transfer disc (11). A rotating plate (212) is mounted on the upper end of the rotating column (211). An electric push rod (213) is mounted on the right end of the rotating plate (212). A supporting circular plate (214) rotatably connected to the rotating plate (212) is mounted on the upper end of the workbench (1). An arc-shaped through groove (215) is provided on the supporting circular plate (214) and is slidably connected to a fixed section of the electric push rod (213). The supporting circular plate (214) and the arc-shaped through groove (215) are both coaxial with the rotating column (211).

4. The cooked food sealing packaging equipment according to claim 3, characterized in that: The guide member comprises a guide column (222), a support plate (223) is installed on the connecting plate, a clamping block (224) is installed at the position of the upper end of the material transfer disc (11) corresponding to the placement member, the clamping block (224) is located on the side of the corresponding placement member away from the center of the material transfer disc (11), the guide column (222) is installed on the upper end of the clamping block (224), and a rotating ring fixedly sleeved on the outside of the rotating column (211) is provided at the upper end of the workbench (1), and a limit rod (225) is installed on the outer side of the rotating ring.

5. The cooked food sealed packaging equipment according to claim 1, characterized in that: The adjusting member also includes an inverted shaped plate (122), and the moving rollers (121) are rotatably mounted between the front and rear vertical sections of the corresponding inverted shaped plate (122). The control member includes a connecting rod (123), and the front sides of the upper ends of the horizontal sections of the left and right inverted shaped plates (122) in the same group of adjusting members are both hinged with the connecting rod (123) through a pin shaft, and the other ends of the two connecting rods (123) are hinged to the lower end of a control block (124). The left and right control blocks (124) are mounted on the lower end of the same push plate (125), and a plurality of inverted shaped plates (122) are slidably mounted on the lower end of the same rectangular frame (126) in a left-right sliding manner. The front and rear sides of the rectangular frame (126) are both provided with a strip-shaped through groove (127) connected to the pin shaft for left-right sliding.

6. The cooked food sealed packaging equipment according to claim 5, characterized in that: A support plate (128) is installed at the front end of the rectangular frame (126), a cylindrical guide rail (129) is installed at the middle of the upper end of the support plate (128), an automatic sliding block (131) fixedly connected to the push plate (125) is slidably installed on the cylindrical guide rail (129), two automatic telescopic rods (132) distributed on the left and right are installed at the lower end of the support plate (128), the automatic telescopic rods (132) are installed on a support seat (133) located at the upper end of the material transfer disc (11), a bottom column (136) rotatably penetrating the center of the material transfer disc (11) is installed at the lower end of the support seat (133), two movable grooves (134) symmetrically distributed along the circumference of the circular through hole are opened at the position corresponding to the circular through hole at the upper end of the material transfer disc (11), and the front and rear vertical sections of the inverted plate (122) are slidably connected to the corresponding movable grooves (134).

7. The cooked food sealed packaging equipment according to claim 3, characterized in that: The lower end of the workbench (1) is provided with a circular through groove (112) which is coaxial with the material transfer disc (11); a linkage assembly is connected between the cover laying unit (2) and the smoothing assembly, and the linkage assembly includes a connecting pulley (135); the lower ends of the rotating column (211) and the bottom column (136) are both provided with connecting pulleys (135) located below the workbench (1); a belt 1 (137) is connected between the left and right connecting pulleys (135); the lower end of the connecting pulley (135) on the left is connected to the output shaft of the second motor (138); and the second motor (138) is installed at the lower end of the workbench (1) through a support.

8. The cooked food sealed packaging equipment according to claim 6, characterized in that: The lower end of the material transfer disc (11) is provided with a sleeve (113) sleeved on the outside of a bottom column (136), the lower end of the sleeve (113) is sleeved with a matching pulley (114), a rotating pulley (115) is rotatably installed at the lower right end of the workbench (1), the matching pulley (114) is transmission-connected to the rotating pulley (115) via a second belt (116), the lower end of the rotating pulley (115) is connected to the output shaft of a third motor (117), and the third motor (117) is installed at the lower end of the workbench (1) via a mounting seat.

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