Folding spoon and lid closing mechanism

Abstract

The present invention discloses a folding spoon and lid closing mechanism, which comprises a mechanism frame, a lifting drive device, a rotating drive device, a lifting frame, a receiving device, a lid closing device, a first folding spoon device and a second folding spoon device. The mechanism frame has a seat plate and a vertical arm, the lifting frame is slidably mounted on the vertical arm, the lid closing device is mounted on the seat plate, the receiving device is located directly above the lid closing device, the rotating drive device is mounted on the lifting frame and drives the receiving device to rotate; the lifting drive device is mounted on the mechanism frame and drives the lifting frame to slide; the first folding spoon device is mounted at the receiving device and aligned with the spoon folding section of the plastic cover, the first folding spoon device folds the spoon folding section along the spoon fixed section, the second folding spoon device is mounted on the seat plate and aligned with the spoon folding section of the plastic cover, the second folding spoon device folds the spoon folding section back and overlaps the spoon fixed section during the closing process of the lid closing device and the receiving device in the second position, so as to achieve the purpose of automatic folding spoon and lid closing of the plastic cover.

Description

Technical Field

[0001] The invention relates to the field of plastic cover production, and in particular to a spoon-folding and cover-closing mechanism. Background Art

[0002] As we all know, the bottle caps of chewing gum, milk powder and health care products seen in our daily life are generally plastic caps, which include a cover surface and a cover base connected to each other. The cover base is installed on a container (such as a bottle or a can), and the cover surface and the cover base are covered with each other, so that users can conveniently take and put items in the container through the cover surface and the cover base. Therefore, plastic caps are widely used.

[0003] Among them, for containers used to package nutritional health powder or milk powder, the plastic cover on the container includes not only a cover surface and a cover base, but also a spoon connected to the cover base, so that the user can remove the spoon from the cover base when opening the cover for the first time, so that the user can use the spoon to take out the nutritional health powder or milk powder in the container. In the case where the outer diameter of the container remains unchanged and the depth increases, the length of the spoon is determined by the outer diameter of the container, so that the length of the spoon cannot be adjusted according to the change of the depth, so that the spoon cannot take out the nutritional health powder or milk powder at the bottom of the container. Therefore, the spoon is designed to be a folding structure.

[0004] For the injection molded plastic cover with folding spoon, the plastic cover needs to be closed due to the subsequent process requirements; due to the folding spoon, the folding spoon must be folded before closing the cover. However, the existing closing equipment cannot adapt to the plastic cover that can only be closed after the folding spoon is folded, and can only be completed manually by workers, so there is a defect of low efficiency.

[0005] Therefore, there is an urgent need for a folding spoon and lid closing mechanism that can realize automatic folding spoon and lid closing of the plastic lid to overcome the above-mentioned defects. Summary of the invention

[0006] The object of the present invention is to provide a spoon folding and lid closing mechanism which can realize automatic spoon folding and lid closing of a plastic lid.

[0007] In order to achieve the above-mentioned purpose, the folding spoon and lid closing mechanism of the present invention is suitable for folding and closing the spoon of an injection-molded plastic cover, wherein the plastic cover comprises a cover seat, a spoon fixing section connected to the cover seat, a spoon folding section connected to the spoon fixing section, and a cover surface connected to the cover seat, and the folding spoon and lid closing mechanism of the present invention comprises a mechanism frame, a lifting drive device, a rotating drive device, a lifting frame, a receiving device for vacuum sucking the cover surface and the cover seat of the plastic cover in an open state, a lid closing device for making the cover surface and the cover seat cover each other, a first folding spoon device, and a second folding spoon device. The mechanism frame comprises a seat plate and a vertical arm assembled and connected with the seat plate, the lifting frame is located directly above the seat plate and can be slidably mounted on the vertical arm in an up-and-down manner, the cover closing device is mounted on the seat plate, the receiving device is located directly above the cover closing device, the rotation drive device is mounted on the lifting frame and drives the receiving device to switch between a first position and a second position, when the receiving device rotates to the first position, the sucked plastic cover is flipped to the top, and when the receiving device rotates to the second position, the sucked plastic cover is flipped to the bottom, the lifting drive device is mounted on the mechanism frame and drives the lifting frame together with the The receiving device and the rotating drive device slide together towards or away from the base plate, so that the lid closing device and the receiving device in the second position can open and close together; the first folding spoon device is installed at the receiving device and is aligned with the spoon folding section of the plastic cover sucked by the receiving device, and the first folding spoon device folds the spoon folding section along the edge of the spoon fixed section; the second folding spoon device is installed on the base plate and is aligned with the spoon folding section of the plastic cover flipped to the bottom, and the second folding spoon device folds the spoon folding section and overlaps it on the spoon fixed section during the closing process of the lid closing device and the receiving device in the second position.

[0008] Preferably, the first folding spoon device includes a folding spoon block, a mounting base mounted on the receiving device, a connecting rod swinging mechanism mounted on the mounting base, and a push-pull driver having a cylinder body and a piston rod, wherein the cylinder body is mounted on the mounting base with an up and down tilt, the piston rod is connected to one end of the connecting rod swinging mechanism, the folding spoon block is mounted on the other end of the connecting rod swinging mechanism, and the push-pull driver drives the folding spoon block to perform a rotating folding spoon motion through the connecting rod swinging mechanism.

[0009] Preferably, one of the connecting rod swing mechanism and the mounting base is provided with an arc-shaped guide slot, and the other of the connecting rod swing mechanism and the mounting base is provided with a guide protrusion located in the arc-shaped guide slot and sliding in the arc-shaped guide slot.

[0010] Preferably, the receiving device includes a receiving frame, a first suction nozzle for vacuum adsorption of the spoon fixing section and a second suction nozzle for vacuum adsorption of the cover surface, the first suction nozzle and the second suction nozzle are installed on the receiving frame, and the mounting base is built into the middle part of the receiving frame.

[0011] Preferably, the second folding spoon device includes a pushing block and a pushing driver having a cylinder body and a piston rod, the cylinder body is installed on the base plate, the piston rod is arranged upward, and the pushing block is installed on the piston rod. The pushing block is driven by the pushing driver to lift and slide to push the folding section of the spoon to fold back and overlap on the fixed section of the spoon.

[0012] Preferably, the closing device comprises a box cover fixed plate, a closing movable plate, a closing frame, a closing driver and a closing nozzle, the closing frame is installed on the base plate, the closing fixed plate is installed on the closing frame, the closing nozzle is installed on the closing fixed plate, the closing movable plate is hinged to the closing fixed plate, the middle part of the closing movable plate is provided with an escape space for the push block to pass through during the lifting process, and the closing driver is installed on the closing frame and drives the closing movable plate and the closing fixed plate to close or open each other.

[0013] Preferably, the lid closing driver is a motor or a rotary cylinder, and the motor or the rotary cylinder drives the lid closing movable plate to rotate through belt drive, chain drive or gear drive.

[0014] Preferably, the rotary drive device comprises a rotary shaft and a rotary driver, the rotary shaft is rotatably inserted into the lifting frame, the receiving device is mounted on the rotary shaft, and the rotary driver is mounted on the lifting frame. The rotary driver drives the rotary shaft and the receiving device to rotate together through belt drive, chain drive or gear drive, so that the receiving device switches between the first position and the second position.

[0015] Preferably, the receiving device, the first folding spoon device, the lid closing device and the second folding spoon device are the same in number and are arranged in a matrix.

[0016] Preferably, the vertical arms are respectively located on both sides of the seat plate and are aligned with each other, the end of the lifting frame is slidably mounted on the vertical arms, the lifting drive device comprises a lifting drive, a transmission shaft, transmission wheels respectively mounted on both ends of the transmission shaft, a distribution wheel located just above the transmission wheel and rotatably mounted on the vertical arm, and a rotary transmission member wound around the transmission wheel and the distribution wheel, the transmission shaft is located below the seat plate and rotatably mounted on the seat plate, the lifting drive is located below the seat plate and fixedly connected to the seat plate, the lifting drive also drives the transmission shaft to rotate, and the rotary transmission member is fixedly connected to the lifting frame.

[0017] Compared with the prior art, since the first folding spoon device is installed at the receiving device and is aligned with the spoon folded section of the plastic cover sucked by the receiving device, when the receiving device keeps sucking the plastic cover, the first folding spoon device makes the spoon folded section folded along the spoon fixed section, and the second folding spoon device is installed on the seat plate and is aligned with the spoon folded section of the plastic cover flipped to the bottom, and the second folding spoon device makes the spoon folded section folded and overlapped on the spoon fixed section during the closing process of the cover closing device and the receiving device in the second position; therefore, the folding spoon and cover closing mechanism of the present invention can realize the automated operation process of folding the spoon first and then closing the cover, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the folding spoon and lid closing mechanism of the present invention when the receiving device is in the first position.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the folding spoon and closing lid mechanism of the present invention when the receiving device is in the second position.

[0020] Figure 3 yes Figure 1 The illustrated schematic diagram is a three-dimensional structural diagram of the folding spoon and lid closing mechanism after the mechanism frame, the lid closing device and the second folding spoon device are hidden.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the receiving device and the first folding spoon device in the folding spoon and lid closing mechanism of the present invention when they are assembled together.

[0022] Figure 5 yes Figure 4 The shown diagram is a planar structural diagram of the receiving device and the first folding spoon device after they are partially moved away from the receiving frame.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the lid closing device and the second folding spoon device in the folding spoon and lid closing mechanism of the present invention when they are assembled together.

[0024] Figure 7a It is a schematic diagram of the spoon-folding and lid-closing mechanism of the present invention after the receiving device receives the plastic cover.

[0025] Figure 7b It is a schematic diagram of the state of the folding spoon and lid closing mechanism of the present invention after the first folding spoon device has bent the folding spoon return section in the plastic cover to a certain angle.

[0026] Figure 7c yes Figure 7b The folding spoon and lid closing mechanism is a schematic diagram of the state after being flipped 180 degrees.

[0027] Figure 7d yes Figure 7cThe folding spoon cover closing mechanism in the state shown is a schematic diagram of the state in which the receiving device and the cover closing device are closed and the second folding spoon device makes the folding spoon folding section in the plastic cover completely fold back into the folding spoon fixing section.

[0028] Figure 7e yes Figure 7d The state shown is a schematic diagram of the folding spoon and lid closing mechanism after the receiving device and the first folding spoon device are moved away from the lid closing device.

[0029] Figure 8a A schematic diagram showing the receiving device, the first folding spoon device and the third folding spoon device in the folding spoon and lid closing mechanism of the present invention in a coordinated state, the figure shows that the folding spoon return section is folded back by the first folding spoon device at a certain angle.

[0030] Figure 8b A schematic diagram showing another matching state of the receiving device, the first folding spoon device and the third folding spoon device in the folding spoon and lid closing mechanism of the present invention is shown, and the figure shows a schematic diagram of a state in which the folding spoon return section is completely folded within the folding spoon fixed section.

[0031] Figure 9a The schematic diagram is a state diagram of a plastic cover formed by an injection mold when the folding spoon folding section is not folded relative to the folding spoon fixed section.

[0032] Figure 9b yes Figure 9a The plastic cover is shown in a schematic diagram of a state where the folding spoon folding section is folded within the folding spoon fixed section.

[0033] Fig.9c yes Figure 9a The plastic cover is shown in a schematic diagram of the state after the cover surface and the cover base are closed. DETAILED DESCRIPTION

[0034] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0035] See also Figure 1 , Figure 2 and Figure 6 The spoon folding and lid closing mechanism 100 of the present invention is suitable for folding and closing the spoon of the plastic lid 200 formed by injection molding. Figures 9a to 9c As shown, the plastic cover 200 includes a cover base 210, a spoon fixing section 220 connected to the cover base 210, a spoon folding section 230 connected to the spoon fixing section 220, and a cover surface 240 connected to the cover base 210. Since the angle between the cover surface 240 and the cover base 210 of the injection-molded plastic cover 200 is 180 degrees, and the spoon folding section 230 is perpendicular to the spoon fixing section 220 connected to the cover base 210, the spoon folding and cover closing mechanism 100 of the present invention needs to fold the spoon first and then close the cover.

[0036] The folding spoon lid closing mechanism 100 of the present invention comprises a mechanism frame 10, a lifting drive device 20, a rotating drive device 30, a lifting frame 80, a receiving device 40 for vacuum sucking the cover surface 240 and the cover seat 210 of the plastic cover 200 in an opened state, a lid closing device 50 for making the cover surface 240 and the cover seat 210 cover each other, a first folding spoon device 60 and a second folding spoon device 70. The mechanism frame 10 has a seat plate 11 and a vertical arm 12 assembled and connected to the seat plate 11. The lifting frame 80 is located directly above the seat plate 11 and can be slidably disposed on the vertical arm 12 in an upward and downward manner. Preferably, the vertical arm 12 is respectively located on both sides of the seat plate 11 (for example, Figure 1 and Figure 2 The left and right sides of the spoon are aligned with each other, and the end of the lifting frame 80 is slidably mounted on the vertical arm 12, which increases the connection strength between the vertical arm 12 and the lifting frame 80 on the one hand, and makes the assembly between the lifting frame 80 and the vertical arm 12 more compact and reasonable on the other hand, but is not limited to this; the cover closing device 50 is installed on the seat plate 11, and is used to cover the cover surface 240 and the cover seat 210 after the spoon is folded (that is, the spoon folded section 230 is folded in the spoon fixed section 220); the receiving device 40 is located directly above the cover closing device 50, and is used to transfer the plastic cover 200 to the cover closing device 50; the rotation driving device 20 is installed on the lifting frame 80 and drives the receiving device 40 to move in the following manner: Figure 1 The first position shown and Figure 2 When the receiving device 40 rotates to the first position, the sucked plastic cover 200 is turned upward, and the state is shown in FIG. Figure 7a As shown, when the receiving device 40 rotates to the second position, the sucked plastic cover 200 is turned downward. Figure 7cAs shown, the plastic cover 200 of the receiving device 40 is transferred to the cover closing device 50; the lifting drive device 20 is installed on the mechanism frame 10 and drives the lifting frame 80 together with the receiving device 40 and the rotating drive device 20 to slide close to or away from the seat plate 11, so that the cover closing device 50 and the receiving device 40 in the second position are opened and closed together to meet the first folding spoon device 60 to fold the spoon return section 230 of the plastic cover 200 at the receiving device 40; the first folding spoon device 60 is installed at the receiving device 40 and is aligned with the spoon return section 230 of the plastic cover 200 sucked by the receiving device 40, and the first folding spoon device 60 makes the spoon return section 230 move along the spoon fixing section 22 near the spoon. 0 folds back to perform the first folding action on the spoon folding section 230; the second folding spoon device 70 is installed on the seat plate 11 and is aligned with the spoon folding section 230 of the plastic cover 200 that is flipped to the bottom. The second folding spoon device 70 folds the spoon folding section 230 back and overlaps the spoon fixing section 220 during the closing process of the cover closing device 50 and the receiving device 40 in the second position, so as to achieve the purpose of the complete folding action of the plastic cover 200; therefore, after the plastic cover 200 is completely folded, the receiving device 40 moves away from the cover closing device 50 while being adsorbed on the cover closing device 50, and the cover closing device 50 continues to close the cover surface 240 and the cover seat 210 of the plastic cover 200, so as to achieve the purpose of automatic cover closing. More specifically, as follows:

[0037] like Figures 3 to 5 As shown, the first folding spoon device 60 comprises a folding spoon block 63, a mounting base 62 mounted on the receiving device 40, a connecting rod swing mechanism 61 mounted on the mounting base 61, and a push-pull driver 64 having a cylinder body 641 and a piston rod 642. The cylinder body 641 is mounted on the mounting base 62 in an up-and-down tilted manner, and the mounting base 62 provides support and fixation for the push-pull driver 64; the piston rod 642 is connected to one end of the connecting rod swing mechanism 61, and the folding spoon block 63 is mounted on the other end of the connecting rod swing mechanism 61, so that the push-pull driver 64 drives the folding spoon block 63 to perform a rotating folding spoon motion through the connecting rod swing mechanism 61; for example, in Figure 8a In the process, the piston rod 642 of the push-pull actuator 64 performs a straight-line sliding movement, and the sliding direction is shown in FIG. Figure 8a The arrow next to the piston rod 642 points to the direction of the piston rod 642, and then under the action of the connecting rod swing mechanism 61, the linear sliding of the piston rod 642 is converted into a rotational motion that drives the folding spoon block 63. Figure 8a As indicated by the middle arrow, the rotating folding spoon block 63 folds the plastic cover 200 sucked by the receiving device 40 so that the spoon folding section 230 is folded. The movement direction of the spoon folding section 230 is shown in FIG. Figure 8aIndicated by the middle arrow. In order to make the movement of the folding spoon block 63 smoother, the mounting base 62 is provided with an arc-shaped guide slot 621, and the connecting rod swing mechanism 61 is provided with a guide protrusion 611 located in the arc-shaped guide slot 621 and sliding in the arc-shaped guide slot 621. Of course, according to actual needs, the arc-shaped guide slot 621 can be provided in the connecting rod swing mechanism 61, and the guide protrusion 611 is provided in the mounting base 62, so it is not limited to the above description; for example, the guide protrusion 611 is a pin shaft member, but it is not limited to this example. It can be understood that the push-pull driver 64 is a cylinder or a hydraulic cylinder.

[0038] like Figures 3 to 6 As shown, the receiving device 40 includes a receiving frame 41, a first suction nozzle 42 for vacuum adsorption of the spoon fixing section 220, and a second suction nozzle 43 for vacuum adsorption of the cover surface 240; the first suction nozzle 42 and the second suction nozzle 43 are installed on the receiving frame 41, and the receiving frame 41 provides support for the first suction nozzle 42 and the second suction nozzle 43 respectively; the mounting base 62 is built into the middle part of the receiving frame 41, so that the first folding spoon device 60 is built into the middle part of the receiving frame 41, so the structure is more compact.

[0039] like Figure 6 , Figure 8a and Figure 8b As shown, the second folding spoon device 70 includes a push block 71 and a push driver 72 having a cylinder body 721 and a piston rod 722. The cylinder body 721 of the push driver 72 is installed on the base plate 11, and the base plate 11 provides support and fixation for the push driver 72; the piston rod 722 of the push driver 72 is arranged upward, so that the piston rod 722 can move up and down and slide in the cylinder body 721; the push block 71 is installed on the piston rod 722, so that the push block 71 can move up and down and slide under the drive of the push driver 72, so as to push the spoon folding section 230 to fold back and overlap on the spoon fixed section 220, as shown in the state Figure 8b and Figure 9b It is understandable that the push drive 72 is a pneumatic cylinder or a hydraulic cylinder.

[0040] like Figure 6As shown, the cover closing device 50 comprises a box cover fixing plate 51, a cover closing movable plate 52, a cover closing frame 53, a cover closing driver 54 and a cover closing suction nozzle 55. The cover closing frame 53 is installed at the base plate 11, and the base plate 11 provides support and fixing for the cover closing frame 53; the cover closing plate 51 is installed on the cover closing frame 53, and the cover closing frame 53 provides support and fixing for the cover closing plate 51; the cover closing suction nozzle 55 is installed on the cover closing plate 51, and is used for vacuum adsorption of the cover surface 240 of the plastic cover 200 transferred by the receiving device 40; the cover closing movable plate 52 is hinged with the cover closing plate 51, and the cover seat 210 of the plastic cover 200 transferred by the receiving device 40 is supported by the cover closing movable plate 52; the middle part of the cover closing movable plate 52 is provided with a push block 7 The avoidance space 521 passed through during the lifting process is convenient for the pushing block 71 to push the spoon folding section 230 from below to continue to close to the spoon fixing section 220 and fold it into the spoon fixing section 220; the cover closing driver 54 is installed on the cover closing frame 51, and the cover closing frame 51 provides support and fixing for the cover closing driver 54; the cover closing driver 54 also drives the cover closing movable plate 52 and the cover closing fixed plate 51 to cover or open each other, so as to achieve the purpose of closing the cover device 50 after the spoon folding section 230 is folded into the spoon fixing section 220 and then closing the cover surface 240 and the cover base 210 together. For example, the cover driver 54 is a rotary cylinder, so that the cover moving plate 52 and the cover fixing plate 51 can be closed or opened very quickly. Of course, according to actual needs, the cover driver 54 can also be a motor. Regardless of whether the cover driver 54 is a rotary cylinder or a motor, it can drive the cover moving plate 52 to rotate through a belt drive, a chain drive or a gear drive. Figure 6 In the embodiment, the cover closing driver 54 drives the cover closing movable plate 52 to rotate through a belt transmission, but the present invention is not limited thereto.

[0041] like Figure 3 As shown, the rotary drive device 20 includes a rotary shaft 21 and a rotary driver 22. The rotary shaft 21 is rotatably inserted into the lifting frame 80. The lifting frame 80 provides support for the rotary shaft 21 and enables the rotary shaft 21 to rise and fall with the lifting frame 80. The receiving device 40 is installed on the rotary shaft 21, and specifically, the receiving frame body 41 of the receiving device 40 is installed on the rotary shaft 21. The rotary driver 22 is installed on the lifting frame 80, and the rotary driver 22 drives the rotary shaft 21 to rotate together with the receiving device 40 through belt drive, chain drive or gear drive, so that the receiving device 40 can be rotated as shown in FIG. Figure 1 The first position shown and Figure 2 For example, the rotary driver 32 is a rotary cylinder or a motor, and the first position and the second position differ by 180 degrees, but the present invention is not limited thereto.

[0042] like Figure 3As shown, the lifting drive device 20 includes a lifting drive 21, a transmission shaft 22, transmission wheels 23 respectively installed at both ends of the transmission shaft 22, a distribution wheel 24 located directly above the transmission wheel 23 and rotatably installed on the vertical arm 12, and a rotary transmission member 25 wound around the transmission wheel 23 and the distribution wheel 24. The transmission shaft 22 is located below the seat plate 11 and is rotatably mounted on the seat plate 11. The lifting drive 21 is located below the seat plate 11 and is fixedly connected to the seat plate 11, so that the transmission shaft 22 and the lifting drive 21 are arranged below the seat plate 11 to achieve a compact structure. The lifting drive 21 also drives the transmission shaft 22 to rotate. Preferably, the lifting drive 21 drives the transmission shaft 22 to rotate through a belt drive. Of course, a chain drive or a gear drive can be used to drive the transmission shaft 22 to rotate according to actual needs. The rotary transmission member 25 is fixedly connected to the lifting frame 80. The lifting drive 21 drives the lifting frame 80 to rise through the transmission shaft 22, the transmission wheel 23, the distribution wheel 24 and the rotary transmission member 25. For example, the lifting drive 21 is a motor, the transmission wheel 23 and the distribution wheel 24 are pulleys, and the rotary transmission member 25 is a belt, but it is not limited thereto.

[0043] Among them, Figure 1 and Figure 2 As shown, in order to improve work efficiency, the receiving device 40, the first folding spoon device 60, the lid closing device 50 and the second folding spoon device 70 are the same in number and are arranged in a matrix. For example, the receiving device 40, the first folding spoon device 60, the lid closing device 50 and the second folding spoon device 70 are four in number respectively. Correspondingly, the rotary drive 30 has two rotating shafts 31, and each rotating shaft 31 is installed with two receiving devices 40, but this is not limited to the above description.

[0044] Combination Figures 7a to 9c , the working principle of the spoon folding and lid closing mechanism of the present invention is explained: when the receiving device 40 receives the plastic cover 200 transferred from the injection mold, the plastic cover 200 is in an open state, that is, the angle between the cover surface 240 of the plastic cover 200 and the cover seat 210 is 180 degrees, and the spoon folding section 230 is perpendicular to the spoon fixing section 220, the state is shown in FIG. Figure 7a and Figure 9a Before the receiving device 40 is rotated from the first position to the second position by the rotation driving device 30, the first folding spoon device 60 folds the spoon folding section 230 back along the spoon fixed section 220 to achieve the first folding of the spoon folding section 230 relative to the spoon fixed section 220, which can be called pre-folding spoon. The specific process of pre-folding spoon is that the piston rod 642 of the push-pull driver 64 makes a straight line slide, and the sliding direction is shown in FIG. Figure 8a The arrow next to the piston rod 642 points to the direction of the piston rod 642, and then under the action of the connecting rod swing mechanism 61, the linear sliding of the piston rod 642 is converted into a rotational motion that drives the folding spoon block 63. Figure 8a As indicated by the middle arrow, the rotating spoon folding block 63 folds the spoon folding section 230 of the plastic cover 200 sucked by the receiving device 40 (i.e., the first suction nozzle 42 of the receiving device 40 vacuum absorbs the spoon fixing section 220 and the second suction nozzle 43 sucks the cover surface 240). The movement direction of the spoon folding section 230 is shown in FIG. Figure 8a The middle arrow points to the folded state. Figure 7b and Figure 8a When the rotary drive device 30 drives the receiving device 40 to rotate to the second position, the spoon return section 230 is located at the bottom and the spoon fixed section 220 is located at the top, the state is shown Figure 7c As shown, the lifting driver 20 drives the rotating driving device 30 and the receiving device 40 to approach the lid closing device 50 through the lifting frame 30 until the receiving device 40 and the lid closing device 50 are closed. At this time, with the cooperation of the receiving device 40, the second spoon folding device 70 causes the spoon folding section 230 to continue to fold close to the spoon fixing section 220 so that the spoon folding section 230 is folded inside the spoon fixing section 220. Figure 7d , Figure 8b and Figure 9b When the spoon folding section 230 is folded in the spoon fixing section 220, the lifting drive 20 drives the rotary drive device 30 and the receiving device 40 to move away from the cover closing device 50 through the lifting frame 30 until the receiving device 40 and the cover closing device 50 are opened. Figure 7e At this time, the cover closing device 50 covers the cover surface 240 and the cover seat 210 of the plastic cover 200 of the spoon folding section 230 overlapped on the spoon fixing section 220, and the state is shown Fig.9c As shown, the purpose of the automatic operation of the spoon folding and lid closing mechanism 100 of the present invention of first folding the spoon and then closing the lid is achieved.

[0045] Compared with the prior art, since the first spoon folding device 60 is installed at the receiving device 40 and is aligned with the spoon folding section 230 of the plastic cover 200 sucked by the receiving device 40, when the receiving device 40 keeps sucking the plastic cover 200, the first spoon folding device 60 makes the spoon folding section 230 fold back along the spoon fixed section 220, and the second spoon folding device 70 is installed on the seat plate 11 and is aligned with the spoon folding section 230 of the plastic cover 200 flipped to the bottom, and the second spoon folding device 70 makes the spoon folding section 230 fold back and overlap on the spoon fixed section 220 during the closing process of the cover closing device 50 and the receiving device 40 in the second position; therefore, the spoon folding and cover closing mechanism 100 of the present invention can realize the automated operation process of folding the spoon first and then closing the cover, thereby improving production efficiency.

[0046] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A folding spoon and lid closing mechanism, suitable for folding and closing a plastic cover formed by injection molding, the plastic cover comprising a lid seat, a spoon fixing section connected to the lid seat, a spoon folding section connected to the spoon fixing section, and a lid surface connected to the lid seat, the folding spoon and lid closing mechanism comprising a mechanism frame, a lifting drive device, a rotating drive device, a lifting frame, a receiving device for vacuum sucking the lid surface and the lid seat of the plastic cover in an open state, and a lid closing device for closing the lid surface and the lid seat with each other, the mechanism frame having a seat plate and a vertical arm assembled and connected to the seat plate, the lifting frame being located directly above the seat plate and being slidably arranged on the vertical arm so as to be lifted and lowered, and the lid closing device being installed On the seat plate, the receiving device is located directly above the cover closing device, the rotation drive device is installed on the lifting frame and drives the receiving device to switch between a first position and a second position, and when the receiving device rotates to the first position, the sucked plastic cover is flipped upward, and when the receiving device rotates to the second position, the sucked plastic cover is flipped downward, and the lifting drive device is installed on the mechanism frame and drives the lifting frame together with the receiving device and the rotation drive device to slide close to or away from the seat plate, so that the cover closing device and the receiving device in the second position are opened and closed together, characterized in that The folding spoon and lid closing mechanism further comprises a first folding spoon device and a second folding spoon device, wherein the first folding spoon device is installed at the receiving device and aligned with the spoon folding section of the plastic cover sucked by the receiving device, the first folding spoon device folds the spoon folding section back along the spoon fixed section, the second folding spoon device is installed at the seat plate and aligned with the spoon folding section of the plastic cover flipped to the bottom, and the second folding spoon device folds the spoon folding section back and overlaps the spoon fixed section during the closing process of the lid closing device and the receiving device in the second position; Wherein, the first folding spoon device comprises a folding spoon block, a mounting base mounted on the receiving device, a connecting rod swing mechanism mounted on the mounting base, and a push-pull driver having a cylinder body and a piston rod, wherein the cylinder body is mounted on the mounting base in an up-and-down tilted manner, the piston rod is connected to one end of the connecting rod swing mechanism, the folding spoon block is mounted on the other end of the connecting rod swing mechanism, and the push-pull driver drives the folding spoon block to perform a rotating folding spoon motion through the connecting rod swing mechanism; The second folding spoon device includes a pushing block and a pushing driver having a cylinder body and a piston rod, wherein the cylinder body is mounted on the base plate, the piston rod is arranged upward, and the pushing block is mounted on the piston rod. The pushing block is driven by the pushing driver to lift and slide to push the folding section of the spoon to fold back and overlap on the fixed section of the spoon.

2. The folding spoon and lid closing mechanism according to claim 1, characterized in that: One of the connecting rod swing mechanism and the mounting base is provided with an arc-shaped guide slot, and the other of the connecting rod swing mechanism and the mounting base is provided with a guide protrusion located in the arc-shaped guide slot and sliding in the arc-shaped guide slot.

3. The folding spoon and lid closing mechanism according to claim 1, characterized in that: The receiving device includes a receiving frame, a first suction nozzle for vacuum adsorbing the fixed section of the spoon, and a second suction nozzle for vacuum adsorbing the cover surface. The first suction nozzle and the second suction nozzle are installed on the receiving frame, and the mounting base is built into the middle part of the receiving frame.

4. The folding spoon and lid closing mechanism according to claim 1, characterized in that: The cover closing device comprises a box cover fixing plate, a cover closing movable plate, a cover closing frame, a cover closing driver and a cover closing nozzle, the cover closing frame is installed on the base plate, the cover closing fixing plate is installed on the cover closing frame, the cover closing nozzle is installed on the cover closing fixing plate, the cover closing movable plate is hinged to the cover closing fixing plate, an escape space is provided in the middle of the cover closing movable plate for the push block to pass through during the lifting process, and the cover closing driver is installed on the cover closing frame and drives the cover closing movable plate and the cover closing fixing plate to close or open each other.

5. The folding spoon and lid closing mechanism according to claim 4, characterized in that: The lid closing driver is a motor or a rotary cylinder, and the motor or the rotary cylinder drives the lid closing movable plate to rotate through belt transmission, chain transmission or gear transmission.

6. The folding spoon and lid closing mechanism according to claim 1, characterized in that: The rotary drive device comprises a rotary shaft and a rotary driver. The rotary shaft is rotatably inserted into the lifting frame. The receiving device is mounted on the rotary shaft. The rotary driver is mounted on the lifting frame. The rotary driver drives the rotary shaft and the receiving device to rotate together through belt drive, chain drive or gear drive, so that the receiving device switches between the first position and the second position.

7. The folding spoon and lid closing mechanism according to claim 6, characterized in that: The receiving device, the first folding spoon device, the lid closing device and the second folding spoon device are the same in number and are arranged in a matrix.

8. The folding spoon and lid closing mechanism according to claim 1, characterized in that: The vertical arms are respectively located on both sides of the seat plate and are aligned with each other, the end of the lifting frame is slidably mounted on the vertical arms, the lifting drive device includes a lifting drive, a transmission shaft, transmission wheels respectively mounted on both ends of the transmission shaft, a distribution wheel located just above the transmission wheel and rotatably mounted on the vertical arm, and a rotary transmission member wound around the transmission wheel and the distribution wheel, the transmission shaft is located below the seat plate and rotatably mounted on the seat plate, the lifting drive is located below the seat plate and is fixedly connected to the seat plate, the lifting drive also drives the transmission shaft to rotate, and the rotary transmission member is fixedly connected to the lifting frame.

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