A stackable and transportable sauce cup packaging device

Abstract

The present invention discloses a stackable and transportable sauce cup packaging device, which relates to the technical field of packaging equipment and includes a chassis for stacking sauce cups in batches, wherein a limiting frame is installed inside the chassis, and a fixed platform is slidably connected to the upper side of the limiting frame. The stackable and transportable sauce cup packaging device uses a feeding clamp to flatly stack a predetermined amount of sauce cups on a supporting cup assembly, and at the same time, the supporting cup assembly can prevent the first sauce cup in the stack from bending. After the batch of sauce cups is stacked, the movable platform and the fixed platform are driven by a transposition mechanism to lift the stacked sauce cups to complete an unobstructed horizontal exchange. The cup-taking assembly at the bottom of the three-axis transfer mechanism is used to prevent the quantitatively stacked sauce cups from falling off and clamping them. At the same time, the cup-taking assembly is flipped to keep the quantitatively stacked sauce cups from loosening and breaking and flat on the pushing mechanism, thereby enabling the packaging device to efficiently and stably stack and transport the sauce cups.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to a sauce cup packaging device that can be stacked and transported. Background Art

[0002] Sauce cups for holding seasoning sauces typically consist of a cup body, a lid, and a flexible connector between the two. These cups are typically produced using an injection molding machine. After molding, packaging equipment is required to package the cups in fixed quantities. These packaging typically involves stacking the cups according to the quantity to ensure they meet sales standards.

[0003] In the prior art, the packaging process of sauce cups generally involves manually stacking injection-molded sauce cups in a fixed quantity, then packaging the fixed quantity of sauce cups in packaging bags, and sealing the packaging bags by heat-cutting. However, during the process from stacking to transport packaging, the stacked sauce cups are prone to loosening and breaking, and thus cannot maintain a complete stacking state when they are finally delivered to the packaging bags. Summary of the Invention

[0004] The object of the present invention is to provide a sauce cup packaging device that can be stacked and transported to solve the problems raised by the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stackable and transportable sauce cup packaging device, comprising a chassis for stacking sauce cups in batches, a limiting frame installed inside the chassis, a fixed platform slidably connected to the upper side of the limiting frame, and a movable platform that can be raised and lowered is provided in the middle of the limiting frame, the fixed platform and the movable platform are used to lift and support the stacked sauce cups in batches;

[0006] The limiting frame exchanges the horizontal positions of the fixed platform and the movable platform through a transposition mechanism. Cup assemblies are equidistantly provided on both sides of the top of the fixed platform and the movable platform, and the cup assemblies are used to expand and limit the injection-molded sauce cup product.

[0007] A three-axis transfer mechanism for transferring sauce cups is provided on one side of the top frame of the chassis, a cup-taking assembly for clamping and grabbing the sauce cups is provided at the bottom of the three-axis transfer mechanism, and a pillow-type packaging device for packaging the sauce cups in heat-shrink packaging bags is provided on one side of the chassis.

[0008] Preferably, the cup assembly includes an L-shaped bracket symmetrically mounted on the top surfaces of the fixed platform and the movable platform, and two parallel columns are symmetrically mounted at the center of the bottom of the L-shaped bracket;

[0009] The inner bottom of the column is butted with a special-shaped clamping spring, and the special-shaped clamping spring passes through and extends out of one end of the column to be integrally formed with an elastic strip.

[0010] Preferably, the shifting mechanism includes a servo motor installed on the outside of the limit frame, the output end of the servo motor and the outside of the limit frame are connected to a synchronous wheel, a synchronous belt is wrapped around the outside of the synchronous wheel, and one side of the fixed platform is connected to the upper side of the synchronous belt through a connecting plate.

[0011] Preferably, the transposition mechanism for horizontally exchanging the fixed platform and the movable platform further comprises:

[0012] A bracket is fixed directly below the movable platform, and vertically parallel straight rails are fixed to the four corners of the bottom of the movable platform. The middle part of the limit frame is slidably connected to a movable plate that moves laterally along the lower side of the synchronous belt. The bracket and the straight rails are all connected to the movable plate.

[0013] The guide wheel is connected to the bottom end of the bracket, and a vertical plate is installed on the inner bottom wall of the chassis. The surface of the vertical plate is provided with a guide groove for pulling the guide wheel to move up and down.

[0014] Preferably, the three-axis transfer mechanism includes a guide rail frame installed on the top frame of the chassis, a Y-axis moving mechanism is radially sliding on the guide rail frame, and an X-axis moving mechanism is also provided on the guide rail frame to drive the Y-axis moving mechanism to move back and forth horizontally, and a Z-axis moving mechanism that can be raised and lowered to pick up materials is installed in the middle of the Y-axis moving mechanism.

[0015] Preferably, the cup-taking assembly for gripping and grabbing the sauce cup comprises a driving cylinder mounted at the bottom end of the Z-direction moving mechanism, a gear rod is fixed to the output end of the driving cylinder, and a connecting seat is mounted at the lower end of the driving cylinder;

[0016] A tooth seat is hinged on the lower side of the connecting seat. The tooth seat is composed of a sector-shaped tooth block and a fastening seat. The gear rod is meshed with the sector-shaped tooth block of the tooth seat for transmission.

[0017] Preferably, a clamping cylinder is installed on the side of the fastening seat away from the sector-shaped gear block, and a clamping arm is connected to the output end of the clamping cylinder at a relative position.

[0018] Preferably, a guide block is installed in one group of clamping arms of the clamping cylinder, and a stop rod is installed in the other group of clamping arms of the clamping cylinder.

[0019] Preferably, two parallel sliding rods are provided in the middle of the guide block, and a counterweight block is slidably connected to the sliding rod. A sliding rail is integrally formed on one side of the counterweight block. The counterweight block is slidably connected to the shift bar through the sliding rail, and a tension spring is connected between one end of the sliding rail and the shift bar.

[0020] Preferably, the pillow packaging equipment is equipped with a belt conveyor for conveying sauce cup packaging bags;

[0021] A pushing mechanism is provided between the chassis and the pillow packaging device, the pushing mechanism comprising a horizontal plate mounted on the side of the chassis, a positioning frame for horizontally placing the sauce cups being mounted on the top of the horizontal plate close to the belt conveyor;

[0022] A transverse movement device is further installed on one side of the top of the horizontal plate close to the positioning frame, and a positioning cylinder is provided above the transverse movement device. A push rod for horizontally pushing the sauce cup is installed on the output end of the positioning cylinder.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the stackable and transportable sauce cup packaging device stacks a fixed amount of sauce cups flatly on the cup support assembly through the feeding clamp, and at the same time the cup support assembly can prevent the first stacked sauce cup from bending. After the sauce cups are stacked in batches, the movable table and the fixed table are driven by the switching mechanism to lift the stacked sauce cups to complete unobstructed horizontal exchange. The cup-taking assembly at the bottom of the three-axis transfer mechanism is used to prevent the quantitatively stacked sauce cups from falling off and clamp them. At the same time, the cup-taking assembly is flipped to keep the quantitatively stacked sauce cups from loosening and breaking and place them flat on the pushing mechanism, thereby enabling the packaging device to efficiently and stably stack and transport the sauce cups. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the sauce cup packaging device of the present invention;

[0025] Figure 2 This is a schematic diagram of the first three-dimensional structure of the linkage of the transposition mechanism, the vertical plate and the support cup assembly of the present invention;

[0026] Figure 3 A schematic diagram of a second three-dimensional structure of the present invention showing the linkage of the transposition mechanism, the vertical plate and the support cup assembly;

[0027] Figure 4 This is a schematic diagram of a first three-dimensional structure of the connection between the transposition mechanism and the vertical plate of the present invention;

[0028] Figure 5 A schematic diagram of a second three-dimensional structure of the connection between the transposition mechanism and the vertical plate of the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional cross-section structure of the support cup assembly of the present invention;

[0030] Figure 7 This is a schematic diagram of the three-axis transfer mechanism and the cup removal assembly connected to the present invention;

[0031] Figure 8 It is a schematic diagram of the three-axis transfer mechanism, cup-taking assembly and material-pushing mechanism in linkage with each other in the present invention;

[0032] Figure 9This is a schematic diagram of the three-dimensional structure of the cup-taking assembly of the present invention for gripping a sauce cup;

[0033] Figure 10 This is a schematic diagram of the three-dimensional cross-section structure of the cup-taking assembly of the present invention for gripping a sauce cup;

[0034] Figure 11 This is a schematic diagram of the three-dimensional cross-section structure of the cup-taking assembly of the present invention for transferring a sauce cup;

[0035] Figure 12 It is a schematic diagram of the three-dimensional cross-section structure of the clamping arm of the present invention;

[0036] Figure 13 This is a schematic diagram of a three-dimensional exploded structure of the guide block, the counterweight block and the shift bar connected in the present invention;

[0037] Figure 14 Schematic diagram of the three-dimensional structure of the material pushing mechanism of the present invention;

[0038] Figure 15 This is a schematic diagram of the three-dimensional structure of the sauce cup of the present invention when placed upside down.

[0039] In the figure: 1, chassis; 101, limit frame; 2, fixed table; 3, movable table; 4, transposition mechanism; 401, bracket; 402, guide wheel; 403, straight rail; 404, movable plate; 405, servo motor; 406, synchronous wheel; 407, synchronous belt; 5, vertical plate; 501, guide groove; 6, support cup assembly; 601, L-shaped support seat; 602, column; 603, special-shaped retaining spring; 604, elastic strip; 7, feeding fixture; 701, suction cup; 8, three-axis transfer mechanism; 801, guide rail frame; 802, Y-axis moving mechanism; 8 03. X-axis moving mechanism; 804. Z-axis moving mechanism; 9. Cup picking assembly; 901. Driving cylinder; 902. Gear rod; 903. Connecting seat; 904. Gear seat; 905. Clamping cylinder; 906. Clamping arm; 907. Guide block; 908. Counterweight block; 908a. Slide rail; 908b. Diverter bar; 908c. Tension spring; 909. Stop rod; 10. Pushing mechanism; 1001. Horizontal plate; 1002. Positioning frame; 1003. Transverse movement device; 1004. Positioning cylinder; 1005. Push rod; 11. Pillow packaging equipment. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 5The present invention provides a technical solution: a stackable and transportable sauce cup packaging device, comprising a chassis 1 for stacking sauce cups in batches, a limiting frame 101 installed inside the chassis 1, a fixed platform 2 is slidably connected to the upper side of the limiting frame 101, and a movable platform 3 that can be raised and lowered is provided in the middle of the limiting frame 101, and the fixed platform 2 and the movable platform 3 are used to lift and support the sauce cups stacked in batches.

[0042] See also Figure 1-Figure 3 and Figure 6 , cup assemblies 6 are equidistantly arranged on both sides of the top of the fixed platform 2 and the movable platform 3, and the cup assemblies 6 are used to limit the expansion of the injection-molded sauce cup product. The cup assemblies 6 include an L-shaped bracket 601 symmetrically mounted on the top surfaces of the fixed platform 2 and the movable platform 3, and two parallel columns 602 are symmetrically mounted at the bottom center of the L-shaped bracket 601;

[0043] A special-shaped retaining spring 603 is connected to the inner bottom of the column 602. The special-shaped retaining spring 603 extends through one end of the column 602 and is integrally formed with an elastic strip 604. A strip opening for the elastic strip 604 to pass through is provided on the adjacent sides of two adjacent columns 602, allowing the elastic strip 604 to move within the strip opening when squeezed or reset. The strip opening provided on the adjacent sides of two adjacent columns 602 allows the two elastic strips 604 to move closer to each other.

[0044] See also Figure 6 and Figure 15 The sauce cup consists of a cup body A for holding the sauce, a cup lid B for sealing the cup body A, and a flexible connecting strip C for combining the cup body A and the cup lid B. A stacking space is left between the pillars 602 and the side of the L-shaped bracket 601 for the cup bodies A to be stacked upside down. The end of the bottom of the L-shaped bracket 601 close to the pillars 602 is used to support the cup lid B. The gap left between two adjacent pillars 602 is for the flexible connecting strip C to pass through. The two parallel pillars 602 can separate the cup body A and the cup lid B.

[0045] See also Figure 1-Figure 3 The chassis 1 is provided with a feeding fixture 7 for receiving the sauce cup from the injection molding machine. Suction cups 701 for negative pressure adsorption of the sauce cup are symmetrically installed on both sides of the feeding fixture 7; the feeding fixture 7 is moved by the robotic arm of the palletizing robot. This is a prior art and will not be elaborated on here.

[0046] In this embodiment, when the feeding fixture 7 uses the suction cup 701 to place the sauce cup upside down between the L-shaped bracket 601 and the column 602, the cup body A and the cup cover B of the quantitative sauce cup can be stacked. At the same time, the gap between the two columns 602 is used to limit the position of the soft connecting strip C between the cup body A and the cup cover B, ensuring that the cup body A and the cup cover B can be separated and stacked;

[0047] When the first sauce cup is placed upside down between the L-shaped bracket 601 and the column 602, the special-shaped retaining spring 603 at the bottom of the two columns 602 squeezes the elastic strip 604, so that the two elastic strips 604 can limit and clamp the soft connecting strip C of the first sauce cup, thereby preventing the soft connecting strip C of the first inverted sauce cup from protruding and bending upward, and thus ensuring that the inverted sauce cups are positioned and stacked when subsequent sauce cups are stacked, and the feeding clamp 7 can reduce the stacking gap between the stacked sauce cups by slightly pressing down the sauce cups when driving the suction cup 701 to stack the sauce cups.

[0048] See also Figure 2-Figure 5 The limit frame 101 exchanges the horizontal positions of the fixed platform 2 and the movable platform 3 through the shifting mechanism 4. The shifting mechanism 4 includes a servo motor 405 installed on the outside of the limit frame 101. The output end of the servo motor 405 and the outside of the limit frame 101 are connected to a synchronous wheel 406. A synchronous belt 407 is wrapped around the outside of the synchronous wheel 406. One side of the fixed platform 2 is connected to the upper side of the synchronous belt 407 through a connecting plate.

[0049] In this embodiment, by starting the servo motor 405 outside the limit frame 101 to achieve forward and reverse rotation, the synchronous wheel 406 can be driven to achieve forward and reverse rotation, so that the synchronous wheel 406 can drive the upper and lower sides of the synchronous belt 407 to achieve mutually opposite lateral movement.

[0050] See also Figure 2-Figure 5 The transposition mechanism 4 for horizontally exchanging the fixed platform 2 and the movable platform 3 further includes: a bracket 401 fixed directly below the movable platform 3, vertically parallel straight rails 403 fixed to the four corners of the bottom of the movable platform 3, a movable plate 404 slidably connected to the middle of the limiting frame 101 and moving laterally along the lower side of the synchronous belt 407, and the bracket 401 and the straight rails 403 are all intertwined with the movable plate 404;

[0051] The guide wheel 402 is connected to the bottom end of the bracket 401, and a vertical plate 5 is installed on the inner bottom wall of the chassis 1. The surface of the vertical plate 5 is provided with a guide groove 501 for pulling the guide wheel 402 up and down; the guide groove 501 is composed of upper horizontal grooves at both ends, a lower horizontal groove in the middle, and an inclined groove located between the upper horizontal groove and the lower horizontal groove.

[0052] In this embodiment, when the servo motor 405 is activated to move the synchronous belt 407 forward or reverse, the synchronous belt 407 drives the fixed table 2 and the movable plate 404 to move laterally, which are offset from each other, through the upper and lower sides. When the synchronous belt 407 pulls the movable plate 404 to move forward or reverse, the straight rail 403 follows the movable plate 404 to move laterally. As the movable table 3 moves laterally, the bottom bracket 401 moves along the guide groove 501 via the guide wheel 402.

[0053] The specific movement method is as follows: when the guide wheel 402 moves from the upper horizontal channel of the guide groove 501 to the inclined channel, the guide wheel 402 will pull the movable platform 3 downward through the bracket 401. At this time, the straight rail 403 will move longitudinally along the movable plate 404, so that the movable platform 3 is dislocated and moved to the oblique lower side of the fixed platform 2.

[0054] When the guide wheel 402 moves along the inclined groove of the guide groove 501 to the lower horizontal groove, the guide wheel 402 will pull the movable platform 3 down to the lowest point through the bracket 401, and the sauce cups supported by the movable platform 3 can be staggered with the fixed platform 2 without interfering with each other; when the guide wheel 402 moves from the lower horizontal groove of the guide groove 501 to another inclined groove and the upper horizontal groove, the guide wheel 402 will drive the movable platform 3 to move up to the specified position through the bracket 401, thereby ensuring that the movable platform 3 and the fixed platform 2 can complete the horizontal position exchange without obstruction when supporting the batches of stacked sauce cups;

[0055] It should be noted that when the guide wheel 402 at the bottom end of the bracket 401 rolls and abuts against the upper horizontal channel of the guide groove 501, the top surface of the movable platform 3 and the top surface of the fixed platform 2 are flush with each other, ensuring that the movable platform 3 and the fixed platform 2 can maintain the same height when the sauce cups are stacked in the exchange position;

[0056] At the same time, in order to ensure that the synchronous belt 407 that can move forward and backward can drive the fixed table 2 and the movable table 3 to move to the specified position with precise offset, two induction switches are horizontally installed on the limit frame 101 near the lower side of the synchronous belt 407, and an induction plate is installed on the movable plate 404 near the lower side of the synchronous belt 407. When the induction plate on the side of the movable plate 404 approaches one of the induction switches and generates induction, the servo motor 405 can be driven to stop by the external PLC controller, ultimately ensuring that the synchronous belt 407 can drive the fixed table 2 and the movable table 3 to move to the specified position with precise offset to complete the reception and stacking of the sauce cups and the stacking and transportation of the sauce cups. The induction switch adopts an inductive metal sensor.

[0057] See also Figure 1 、 Figure 7 and Figure 8 A three-axis transfer mechanism 8 for transferring sauce cups is provided on one side of the top frame of the chassis 1. The three-axis transfer mechanism 8 includes a guide rail frame 801 installed on the top frame of the chassis 1. A Y-direction moving mechanism 802 slides radially on the guide rail frame 801. The guide rail frame 801 is also provided with an X-direction moving mechanism 803 that drives the Y-direction moving mechanism 802 to move back and forth. A Z-direction moving mechanism 804 that can be lifted and lowered to take out materials is installed in the middle of the Y-direction moving mechanism 802.

[0058] In this embodiment, the Z-direction moving mechanism 804 can be adjusted for radial displacement in the Y-axis direction through the Y-direction moving mechanism 802, and the Y-direction moving mechanism 802 and the Z-direction moving mechanism 804 can be pulled together by the X-direction moving mechanism 803 to adjust the lateral displacement in the X-axis direction, so that the horizontal position of the Z-direction moving mechanism 804 can be changed by the Y-direction moving mechanism 802 and the X-direction moving mechanism 803, and then the Z-direction moving mechanism 804 can be moved closer to the cup support assembly 6 for stacking the sauce cups in the chassis 1 through X-axis movement and Y-axis movement; the three-axis transfer mechanism 8 is a prior art, and reference can be made to the Chinese patent with the announcement number CN213707013U, which discloses a three-axis robotic arm material picking mechanism.

[0059] See also Figure 1 and Figure 7-11 A cup-taking assembly 9 for clamping and grabbing the sauce cup is provided at the bottom of the three-axis transfer mechanism 8. The cup-taking assembly 9 for clamping and grabbing the sauce cup includes a driving cylinder 901 installed at the bottom end of the Z-direction moving mechanism 804. A gear rod 902 is fixed to the output end of the driving cylinder 901. A connecting seat 903 is installed at the lower end of the driving cylinder 901. A gear seat 904 is hinged on the lower side of the connecting seat 903. The gear seat 904 is composed of a sector-shaped gear block and a fastening seat, and the gear rod 902 is engaged with the sector-shaped gear block of the gear seat 904 for transmission.

[0060] In this example, see Figure 7 、 Figure 9 and Figure 10 When the cup taking assembly 9 is moved downwards towards the cup supporting assembly 6, the gear rod 902 is locked in a retracted state by driving the cylinder 901, so that the gear rod 902 is engaged with the gear seat 904 to limit the position, thereby enabling the cup taking assembly 9 to be in a vertical use state;

[0061] See also Figure 8 and Figure 11 When the cup taking component 9 is driving the sauce cup for transportation, the cylinder 901 is driven to push the gear rod 902 to extend and engage with the gear seat 904, so that the cup taking component 9 can be in a vertically bent use state.

[0062] See also Figures 9-12 A clamping cylinder 905 is installed on the side of the fastening seat away from the sector-shaped tooth block, and a clamping arm 906 is connected to the output end at the opposite position of the clamping cylinder 905; the inner end of the clamping arm 906 away from the clamping cylinder 905 is provided with claws to prevent the cup from falling off, and the claws at the inner ends of the two adjacent groups of clamping arms 906 can limit the outer edge of the cup body A and the outer edge of the cup cover B of the sauce cup.

[0063] In this embodiment, the two sets of clamping arms 906 are pushed away from each other by the clamping cylinder 905. At this time, the Z-direction moving mechanism 804 is activated to drive the cup-taking assembly 9 to move toward the cup-supporting assembly 6 where the sauce cups are stacked. When the cup-taking assembly 9 descends to a position close to the cup-supporting assembly 6, the clamping cylinder 905 retracts the two sets of clamping arms 906 to clamp the sauce cups that have been stacked in a certain quantity.

[0064] When the sauce cup is clamped by the clamping arm 906, the two adjacent groups of clamping arms 906 will clamp the outer edge of the cup body A and the outer edge of the cup cover B of the sauce cup respectively when they are retracted and close together, thereby preventing the cup body A and the cup cover B of the sauce cup from being deformed during transportation, and the claws at the inner end of the clamping arm 906 can be used to limit the outer edge of the cup body A and the outer edge of the cup cover B of the bottom sauce cup to prevent the sauce cup from falling off. When the clamping arm 906 lifts the bottom sauce cup through the claws, the soft connecting strip C of the bottom sauce cup will squeeze the elastic strip 604 to achieve disengagement.

[0065] See also Figures 9-13 A guide block 907 is installed in one group of clamping arms 906 of the clamping cylinder 905, and a stop rod 909 is installed in the other group of clamping arms 906 of the clamping cylinder 905.

[0066] It should be emphasized that when different numbers of sauce cups are stacked, the sauce cups will be stacked into wholes of different lengths. To this end, by changing the installation position of the guide block 907 and the baffle 909 on the clamping arm 906, sauce cups of different stacking numbers can be stably clamped.

[0067] See also Figure 6 、 Figure 10-13 , two parallel sliding rods are provided in the middle of the guide block 907, and a counterweight block 908 is slidably connected to the sliding rods. A sliding rail 908a is integrally formed on one side of the counterweight block 908. The counterweight block 908 is slidably connected to the shift bar 908b through the sliding rail 908a. A tension spring 908c is connected between one end of the sliding rail 908a and the shift bar 908b;

[0068] A clearance opening is provided at the top of the column 602 for the shifting bar 908b to move. When the top position of the stacked sauce cup soft connecting strips C is higher than the clearance opening at the top of the column 602, the downward-pressed shifting bar 908b will not dock with the clearance opening. When the top position of the stacked sauce cup soft connecting strips C is lower than the clearance opening at the top of the column 602, the downward-pressed shifting bar 908b will squeeze the top sauce cup soft connecting strip C along the clearance opening.

[0069] In this embodiment, when the two groups of clamping arms 906 move away from each other on both sides of the clamping cylinder 905 and move longitudinally toward the cup assembly 6, the counterweight block 908 will slide down along the sliding rod in the middle of the guide block 907. At this time, the shift bar 908b on one side of the counterweight block 908 will be located below the stop bar 909. When the claws of the clamping arm 906 descend to the sauce cup at the bottom near the L-shaped bracket 601, the shift bar 908b in one group of clamping arms 906 will press on the soft connecting bar C of the sauce cup at the top. When the lever 908b first presses on the flexible connecting strip C of the top sauce cup and the claws of the clamping arm 906 have not yet descended to the bottom sauce cup, the flexible connecting strip C will push the lever 908b upward, causing the counterweight 908 on the lever 908b to move upward along the sliding rod in the middle of the guide block 907. As a result, the counterweight 908 squeezes the lever 908b to squeeze and limit the flexible connecting strip C of the top sauce cup, so that the lever 908b and the claws can vertically clamp and limit the quantitatively stacked sauce cups.

[0070] Please refer to Figure 11 When the driving cylinder 901 pushes the gear rod 902 to rotate the gear seat 904 90° around the connecting seat 903, the clamping arms 906 of the clamping cylinder 905 can be placed horizontally, and the blocking rod 909 of one set of clamping arms 906 is ensured to be in the upper position, and the counterweight block 908 of the other set of clamping arms 906 is in the lower position;

[0071] When the two sets of clamping arms 906 are placed horizontally, the counterweight block 908 is subjected to the downward gravity and moves downward along the two sliding rods in the middle of the guide block 907. The downward moving counterweight block 908 can drive the upper side of the shift bar 908b to move downward. Because the two sets of clamping arms 906 are clamped, the shift bar 908b on one side of the counterweight block 908 will be located in front of the blocking rod 909. At this time, when the counterweight block 908 moves downward, the blocking rod 909 will prevent the shift bar 908b from retreating. At the same time, the shift bar 908 b will slide with the slide rail 908a on one side of the counterweight 908, thereby stretching the tension spring 908c. Therefore, when the shift bar 908b slides relative to the counterweight 908, it can still block the flexible connecting bar C of the horizontally stacked sauce cups, preventing the sauce cups from loosening when switching from vertical stacking to horizontal stacking. Furthermore, when the sauce cups are rotated, the quantitatively stacked sauce cups can be prevented from being disconnected, ensuring that the quantitatively stacked sauce cups can remain in a complete stacked state when packaged in a packaging bag;

[0072] Please refer to Figure 12 When the two sets of horizontally placed clamping arms 906 move away from each other, the lever 908b on one side of the counterweight 908 will separate from the blocking rod 909, so that the tension spring 908c can pull the lever 908b to reset, and the lever 908b will move away from the sauce cup when resetting.

[0073] See also Figure 1 On one side of the chassis 1 is provided a pillow packaging device 11 for packaging sauce cups through heat shrink packaging bags, and a belt conveyor for conveying sauce cup packaging bags is installed on the pillow packaging device 11; the pillow packaging device 11 rotates and heat-cuts and seals the plastic packaging bags through a hot-cutting knife roller. The pillow packaging device 11 is a prior art. Reference may be made to the Chinese patent publication number CN115043046B, which discloses a design method for the distribution of hot-cutting rollers and heating wheels of a pillow packaging machine based on equal division of the circumference. Reference may also be made to the Chinese patent publication number CN216233382U, which discloses a pillow packaging machine for moon cake production. Both patents disclose the specific operation of hot-cutting and sealing the packaging bags, which will not be elaborated on here.

[0074] See also Figure 1 、 Figure 8 and Figure 14 A pushing mechanism 10 is provided between the chassis 1 and the pillow packaging device 11. The pushing mechanism 10 includes a horizontal plate 1001 installed on the side of the chassis 1. A positioning frame 1002 for horizontally placing the sauce cup is installed on the top of the horizontal plate 1001 near the belt conveyor; a transverse movement device 1003 is also installed on the top of the horizontal plate 1001 near the positioning frame 1002. A positioning cylinder 1004 is provided above the transverse movement device 1003. A push rod 1005 for horizontally pushing the sauce cup is installed on the output end of the positioning cylinder 1004;

[0075] The transverse movement device 1003 includes a bearing seat installed on the top surface of the horizontal plate 1001, and a screw rod is movably connected between the two bearing seats. The outer side of the screw rod is threadedly connected to a sleeve that slides in contact with the top surface of the horizontal plate 1001. The sleeve is connected to the bottom surface of the positioning cylinder 1004. The horizontal plate 1001 is close to the top surface of one of the bearing seats to drive the screw rod to rotate by installing a matching servo motor.

[0076] In this embodiment, when the cup-taking assembly 9 is used to place the quantitatively stacked sauce cups horizontally on the positioning frame 1002, it is necessary to first activate the positioning cylinder 1004 to drive the ejector rod 1005 at the output end toward the transverse movement device 1003. At this time, the cup-taking assembly 9 is placed horizontally on the positioning frame 1002 without colliding or interfering with the ejector rod 1005.

[0077] When the cup-taking component 9 moves away from the positioning frame 1002, the positioning cylinder 1004 drives the push rod 1005 at the output end to move to the position aligned with the positioning frame 1002. At this time, the servo motor of the transverse movement device 1003 is started to drive the screw to rotate, so that the screw drives the sleeve to move forward, so that the sleeve can drive the push rod 1005 at the output end of the positioning cylinder 1004 to push the sauce cups stacked horizontally on the positioning frame 1002, so that the quantitative sauce cups are pushed into the packaging bags on the belt conveyor. When the belt conveyor transports the packaging bags containing the quantitative sauce cups to the inside of the pillow packaging equipment 11, the fixed-length packaging bags can be heat-shrunk and packaged by the pillow packaging equipment 11.

[0078] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stackable and transportable sauce cup packaging device, comprising a chassis (1) for stacking sauce cups in batches, characterized in that: A limiting frame (101) is installed inside the chassis (1), the upper side of the limiting frame (101) is slidably connected to a fixed platform (2), and a movable platform (3) that can be raised and lowered is provided in the middle of the limiting frame (101), and the fixed platform (2) and the movable platform (3) are used to lift and support batches of stacked sauce cups; The limiting frame (101) exchanges the horizontal positions of the fixed platform (2) and the movable platform (3) through the position conversion mechanism (4); cup assemblies (6) are equidistantly provided on both sides of the top of the fixed platform (2) and the movable platform (3); and the cup assemblies (6) are used to expand and limit the injection-molded sauce cup product; A three-axis transfer mechanism (8) for transferring sauce cups is provided on one side of the top frame of the chassis (1); a cup-taking assembly (9) for clamping and grabbing the sauce cups is provided at the bottom of the three-axis transfer mechanism (8); and a pillow-type packaging device (11) for packaging the sauce cups in heat-shrink packaging bags is provided on one side of the chassis (1); The cup assembly (6) comprises an L-shaped support seat (601) symmetrically mounted on the top surfaces of the fixed platform (2) and the movable platform (3), and two parallel columns (602) are symmetrically mounted at the center of the bottom of the L-shaped support seat (601); The inner bottom of the column (602) is butted with a special-shaped retaining spring (603), and the special-shaped retaining spring (603) extends through one end of the column (602) and is integrally formed with an elastic strip (604); The three-axis transfer mechanism (8) includes a guide rail frame (801) mounted on the top frame of the chassis (1); a Y-direction moving mechanism (802) is radially slidably disposed on the guide rail frame (801); an X-direction moving mechanism (803) is further disposed on the guide rail frame (801) for driving the Y-direction moving mechanism (802) to move back and forth; and a Z-direction moving mechanism (804) is mounted in the middle of the Y-direction moving mechanism (802) for lifting and retrieving materials. The cup-taking assembly (9) for gripping and grabbing the sauce cup comprises a driving cylinder (901) mounted at the bottom end of the Z-direction moving mechanism (804), a gear rod (902) being fixed to the output end of the driving cylinder (901), and a connecting seat (903) being mounted at the lower end of the driving cylinder (901); The lower side of the connecting seat (903) is hinged with a tooth seat (904), the tooth seat (904) is composed of a sector-shaped tooth block and a fastening seat, and the gear rod (902) is meshed with the sector-shaped tooth block of the tooth seat (904) for transmission; A clamping cylinder (905) is installed on the side of the fastening seat away from the sector-shaped tooth block, and a clamping arm (906) is connected to the output end at the opposite position of the clamping cylinder (905); A guide block (907) is installed in one set of clamping arms (906) of the clamping cylinder (905), and a stop rod (909) is installed in the other set of clamping arms (906) of the clamping cylinder (905); Two parallel sliding rods are provided in the middle of the guide block (907), and a counterweight block (908) is slidably connected to the sliding rod. A sliding rail (908a) is integrally formed on one side of the counterweight block (908). The counterweight block (908) is slidably connected to the shift bar (908b) through the sliding rail (908a). A tension spring (908c) is connected between one end of the sliding rail (908a) and the shift bar (908b).

2. The stackable and transportable sauce cup packaging device according to claim 1, characterized in that: The shifting mechanism (4) includes a servo motor (405) mounted on the outside of the limiting frame (101), the output end of the servo motor (405) and the outside of the limiting frame (101) are both connected to a synchronous wheel (406), a synchronous belt (407) is wound around the outside of the synchronous wheel (406), and one side of the fixed platform (2) is connected to the upper side of the synchronous belt (407) via a connecting plate.

3. The stackable and transportable sauce cup packaging device according to claim 2, characterized in that: The transposition mechanism (4) for horizontally exchanging the fixed platform (2) and the movable platform (3) further comprises: A bracket (401) is fixed directly below the movable platform (3), and vertically parallel straight rails (403) are fixed at the four corners of the bottom of the movable platform (3). A movable plate (404) that moves laterally along the lower side of the synchronous belt (407) is slidably connected to the middle of the limiting frame (101), and the bracket (401) and the straight rails (403) are both interpenetrating with the movable plate (404); A guide wheel (402) is connected to the bottom end of the bracket (401), and a vertical plate (5) is installed on the inner bottom wall of the chassis (1). A guide groove (501) is provided on the surface of the vertical plate (5) for pulling the guide wheel (402) to move up and down.

4. The stackable and transportable sauce cup packaging device according to claim 1, characterized in that: The pillow packaging equipment (11) is provided with a belt conveyor for conveying sauce cup packaging bags; A material pushing mechanism (10) is provided between the chassis (1) and the pillow packaging device (11), the material pushing mechanism (10) comprising a horizontal plate (1001) mounted on the side of the chassis (1), a positioning frame (1002) for horizontally placing the sauce cups being mounted on the top of the horizontal plate (1001) near the belt conveyor; A transverse movement device (1003) is also installed on one side of the top of the horizontal plate (1001) close to the positioning frame (1002), and a positioning cylinder (1004) is provided above the transverse movement device (1003). A push rod (1005) for horizontally pushing the sauce cup is installed on the output end of the positioning cylinder (1004).

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