An inner packaging paper folding machine for Pu-erh tea cakes

Abstract

A folding machine for the inner packaging of Pu-erh tea cakes, comprising a frame, a tissue paper equalizing mechanism and several folding manipulators. A supporting flat plate is provided on the frame, and a through hole is opened in the center of the supporting flat plate. The tissue paper equalizing mechanism is provided directly above the through hole, and a first lifting driving mechanism for driving it to move in the vertical direction is correspondingly provided on the tissue paper equalizing mechanism. A supporting disc that can move in the vertical direction is provided directly below the through hole, and several of the folding manipulators are equidistantly provided on the peripheral side surface of the supporting disc. A pressing block for pressing all the folded papers into the grooves of the Pu-erh tea cakes is also provided directly above the through hole. The folding machine for the inner packaging of Pu-erh tea cakes of the present invention has a simple structure, simulates the manual paper folding action, and can quickly complete the paper folding of the inner packaging of Pu-erh tea cakes on the premise of ensuring the paper folding quality, greatly improving the paper folding efficiency.

Description

Technical Field

[0001] The present invention relates to a tea packaging device, and more specifically to an inner packaging paper folding machine for Pu-erh tea cakes. Background Art

[0002] The packaging of Pu-erh tea cakes not only requires aesthetics, nor is it only for the convenience of transportation. Its packaging must also be suitable for subsequent aging. Therefore, most Pu-erh tea cakes are packaged with cotton paper, and the cotton paper is folded along the circumference of the Pu-erh tea cake to form fan-shaped leaves with certain rules. The traditional method is manual folding, which is inefficient and requires a large amount of human resources.

[0003] To solve the above problems, a Chinese utility model patent with the authorization announcement number CN 206087427U discloses an actuator of an inner packaging machine for Pu-erh tea cakes, including a cake pushing mechanism, an upper paper folding disk, packaging cotton paper, a lower paper folding disk, an aperture paper folding mechanism, and a cake topping mechanism. The packaging cotton paper is placed between the upper paper folding disk and the lower paper folding disk. The cake pushing mechanism is placed above the upper paper folding disk. A cake topping mechanism is provided below the aperture paper folding mechanism. The aperture paper folding mechanism includes a paper folding handle, an upper cover, a lower part of the paper folding mechanism, and paper folding blades. Both the upper and lower sides of the paper folding blades are provided with protrusions. The paper folding blades are connected to the grooves of the lower part of the paper folding mechanism through the protrusion II on the lower side. A small hole is opened on the paper folding handle, and the protrusion I on the upper side of the paper folding blade is placed in the small hole opened on the paper folding handle. The upper cover is riveted to the lower part of the paper folding mechanism and covers the paper folding handle and the paper folding blades inside it.

[0004] For the above-mentioned inner packaging machine for Pu-erh tea cakes of the utility model, the paper folding is mainly completed by the contraction of the paper folding blades to move the cotton paper radially. This paper folding method requires pre-folding the cotton paper into fan-shaped folds with certain rules. However, since the cotton paper needs to place the tea cake and move downward after pre-folding, the cotton paper is prone to deformation or displacement, resulting in the subsequent paper folding being affected and unable to ensure the paper folding quality of the cotton paper. Summary of the Invention

[0005] The present invention provides an inner packaging paper folding machine for Pu-erh tea cakes, and its main purpose is to overcome the disadvantages that the existing inner packaging paper folding mechanism for Pu-erh tea cakes needs to pre-fold the cotton paper into fan-shaped folds with certain rules, but the cotton paper is prone to deformation when placing the tea cake and moving downward, and the paper folding quality of the cotton paper cannot be guaranteed.

[0006] The present invention adopts the following technical solutions:

[0007] A folding machine for the inner packaging of Pu-erh tea cakes, comprising a frame, a tissue paper equalizing mechanism, and several folding manipulators. A support flat plate is provided on the frame, and a through hole is opened in the center of the support flat plate. The tissue paper equalizing mechanism is provided directly above the through hole, and a lifting drive mechanism I for driving it to move in the vertical direction is correspondingly provided on the tissue paper equalizing mechanism. A support disc that can move in the vertical direction is provided directly below the through hole. Several of the folding manipulators are equidistantly provided on the peripheral side surface of the support disc. A pressing block for pressing all the folded papers into the grooves of the Pu-erh tea cakes is also provided directly above the through hole.

[0008] Specifically, the tissue paper equalizing mechanism includes a flange and several equalizing folding plates. Several of the equalizing folding plates are annularly and matrix-arranged on the bottom circumferential surface of the flange.

[0009] Furthermore, the cross-section of each of the equalizing folding plates is L-shaped. The equalizing folding plate includes a vertical standing plate and a vertical baffle plate connected to the inner side of the vertical standing plate. A gap is left between every two adjacent vertical baffle plates.

[0010] Preferably, the lifting drive mechanism I includes a connecting bracket for the tissue paper equalizing mechanism, vertical guide rods, vertical guide sleeves, and a lifting cylinder I. Two of the vertical guide rods are fixedly connected to the top surface of the flange. The connecting bracket for the tissue paper equalizing mechanism is respectively sleeved on the vertical guide rods through two vertical guide sleeves. The lifting cylinder I is vertically fixed on the connecting bracket for the tissue paper equalizing mechanism. The piston rod of the lifting cylinder I is connected to the center of the top surface of the flange through a connecting plate and a hollow connecting sleeve.

[0011] Furthermore, the pressing block is provided directly below the center of the bottom of the flange. The pressing block is connected to a lifting cylinder II through a lifting rod. The lifting rod vertically passes through the hollow connecting sleeve. The lifting cylinder II is fixed on the connecting bracket for the tissue paper equalizing mechanism.

[0012] Furthermore, a lateral drive mechanism for driving the tissue paper equalizing mechanism to move left and right is also provided on the frame. The lateral drive mechanism includes a lateral guide rail and a lateral drive cylinder. The connecting bracket for the tissue paper equalizing mechanism is slidably provided on the lateral guide rail through a lateral slider. The lateral drive cylinder is fixed on the frame and is connected to the connecting bracket for the tissue paper equalizing mechanism.

[0013] Furthermore, a bearing plate is provided on the frame. The support disc is provided in the middle of the bearing plate. A lifting drive mechanism II for driving the support disc to move in the vertical direction is provided below the bottom of the bearing plate.

[0014] Preferably, the second lifting drive mechanism includes a lead screw motor, a lead screw, and a lifting guide rod. The lead screw motor is fixed on the frame. The lead screw is connected to the lead screw motor through a lead screw nut. The top end of the lead screw is fixedly connected to the center of the bottom of the support disc. A guide sleeve is fixedly provided on the bearing plate. The lifting guide rod passes through the guide sleeve, and the lifting guide rod is fixedly connected to the bottom of the support disc.

[0015] Preferably, the origami manipulator includes an openable and closable clamping arm, an opening and closing air cylinder for opening or closing the clamping arm, a flipping air cylinder for driving the clamping arm to rotate up and down in the vertical plane, and a rotating motor for driving the clamping arm to rotate left and right in the horizontal plane. The flipping air cylinder is fixed through an air cylinder fixing seat. Two connecting parts extend forward from both sides of the front end of the air cylinder fixing seat. The front ends of the connecting parts are connected with two connecting arms through pin shafts. Each connecting arm is correspondingly hinged with one clamping arm. An opening and closing air cylinder is also fixedly provided in the connecting part. The opening and closing air cylinder is connected with a push block. Two bent inclined blocks are respectively connected to both sides of the push block. The bent part of each bent inclined block is hinged on the connecting part. The end of the bent inclined block is correspondingly connected with one connecting arm through a long hole. The piston rod of the flipping air cylinder is hinged with the upper part of the clamping arm through a connecting rod and a hinge. The rotating motor is fixed on the motor fixing seat. The main shaft of the rotating motor is connected with a driving gear. The rear end of the air cylinder fixing seat is fixedly connected with a driven gear, and the driven gear is meshed with the driving gear.

[0016] Furthermore, a manipulator guide rail fixed on the bearing plate is correspondingly provided below each origami manipulator. The bottom of each motor fixing seat is slidably arranged on the manipulator guide rail through an axial slider.

[0017] From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

[0018] 1. For the inner packaging paper folding machine of Pu-erh tea cakes of the present invention, first raise the support disc to a position slightly lower than the support plate, then sequentially convey the tissue paper and the Pu-erh tea cakes to above the through holes of the support plate by their respective conveying mechanisms. Next, lower the tissue paper equalizing mechanism until it contacts the tea cake, and the support disc descends synchronously. Under the action of the tissue paper equalizing mechanism, the tissue paper is equally spaced into several arc pieces on the outer circumference of a cylinder. Then, the paper folding manipulators beside each arc piece clamp the arc pieces to form sector-shaped blades. Subsequently, move the tissue paper equalizing mechanism upward, and all the paper folding manipulators fold the sector-shaped blades in the same clockwise direction. One ends of all the sector-shaped blades away from the paper folding manipulators are sequentially stacked at the center of the support disc. Finally, under the action of the pressing block, they are pressed into the central groove of the Pu-erh tea cake. Therefore, the inner packaging paper folding machine of Pu-erh tea cakes of the present invention has a simple structure, simulates the manual paper folding action, and can quickly complete the paper folding of the inner packaging of Pu-erh tea cakes on the premise of ensuring the paper folding quality, greatly improving the paper folding efficiency.

[0019] 2. The tissue paper equalizing mechanism of the present invention not only equally divides the paper on a circumferential surface, but also presses on the Pu-erh tea cake when the paper folding manipulator operates, preventing the Pu-erh tea cake from shifting and causing deviation in the paper folding, which may lead to non-compliance with the quality requirements of the paper folding or even damage to the tissue paper.

[0020] 3. The paper folding manipulator of the present invention is provided with a flipping cylinder that drives the clamping arm to rotate up and down in a vertical plane, which can clamp the tissue paper from the upper part to the lower part and shape it downward to ensure the folding quality of the tissue paper in the longitudinal direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention.

[0022] Figure 2 is a schematic structural diagram of the tissue paper equalizing mechanism and the first lifting drive mechanism of the present invention.

[0023] Figure 3 is Figure 2 exploded schematic diagram of

[0024] Figure 4 is a top view of the carrier plate and the folding plate manipulator of the present invention.

[0025] Figure 5 is a front view of the carrier plate, the second lifting drive mechanism and the folding plate manipulator of the present invention.

[0026] Figure 6 is a schematic structural diagram of the folding plate manipulator of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following describes the specific embodiments of the present invention with reference to the accompanying drawings. To fully understand the present invention, many details are described below, but for those skilled in the art, the present invention can be implemented without these details.

[0028] A packaging paper folding machine for Pu-erh tea cakes, referring to Figure 1 , includes a machine frame 1, a tissue paper equalizing mechanism 20 and several paper folding manipulators 30. Among them, a support flat plate 11 is provided on the machine frame 1, a through hole 110 is opened in the center of the support flat plate 11, and the diameter of the through hole 110 is larger than the outer diameter of the Pu-erh tea cake. A tissue paper equalizing mechanism 20 is provided directly above the through hole 110, and a first lifting drive mechanism 40 for driving it to move in the vertical direction is correspondingly provided on the tissue paper equalizing mechanism 20.

[0029] Referring to Figure 1 , a bearing plate 12 is provided on the above-mentioned machine frame 1 below the support flat plate 11, a support disc 13 is installed in the middle of the bearing plate 12, and several of the above-mentioned paper folding manipulators 30 are equidistantly arranged on the peripheral side of the support disc 13. Preferably, there are eighteen paper folding manipulators 30. A second lifting drive mechanism 50 for driving the support disc 13 to move in the vertical direction is provided below the bottom of the bearing plate 12.

[0030] Referring to Figure 2 and Figure 3 , the above-mentioned tissue paper equalizing mechanism 20 includes a flange plate 21 and several equalizing folding plates 22. Preferably, there are eighteen equalizing folding plates 22. Several of the above-mentioned equalizing folding plates 22 are arranged in an annular matrix on the bottom circumferential surface of the flange plate 21. The cross-section of each of the equalizing folding plates 22 is L-shaped. The equalizing folding plate includes a vertical standing plate 221 and a vertical baffle 222 connected to the inner side of the vertical standing plate 221, and a gap is left between every two adjacent vertical baffles 222.

[0031] Referring to Figure 2 and Figure 3 , the first lifting drive mechanism 40 includes a tissue paper equalizing mechanism connecting bracket 41, a vertical guide rod 42, a vertical guide sleeve 43, and a first lifting cylinder 44. Two of the above-mentioned vertical guide rods 42 are fixedly connected to the top surface of the flange plate 21. The tissue paper equalizing mechanism connecting bracket 41 is respectively sleeved on the vertical guide rods 42 through two vertical guide sleeves 43. The first lifting cylinder 44 is vertically fixed on the tissue paper equalizing mechanism connecting bracket 41, and the piston rod of the first lifting cylinder 44 is connected to the center of the top surface of the flange plate 21 through a connecting plate 45 and a hollow connecting sleeve 46.

[0032] Referring to Figures 1 to 3 , a pressing block 14 for pressing all the folded papers in the groove of the Pu-erh tea cake is also provided directly above the through hole 110. The pressing block 14 is arranged below the center of the bottom of the flange plate 21. The pressing block 14 is connected to a second lifting cylinder 16 through a lifting rod 15. The lifting rod 15 vertically passes through the hollow connecting sleeve 46, and the second lifting cylinder 16 is fixed on the tissue paper equalizing mechanism connecting bracket 41.

[0033] Reference Figure 1 and Figure 2 As described above, a lateral driving mechanism for driving the tissue paper equalizing mechanism 20 to move left and right is further provided on the frame 1. The lateral driving mechanism includes a lateral guide rail 61 and a lateral driving cylinder (not shown in the figure). The connecting bracket 41 of the tissue paper equalizing mechanism is slidably provided on the lateral guide rail 61 through a lateral slider 62. The lateral driving cylinder is fixed on the frame 1 and is connected to the connecting bracket 41 of the tissue paper equalizing mechanism.

[0034] Reference Figure 1 、 Figure 4 and Figure 5 As described above, the second lifting driving mechanism 50 includes a lead screw motor 51, a lead screw 52 and a lifting guide rod 53. The lead screw motor 52 is fixed on the frame 1. The lead screw 52 is connected to the lead screw motor 51 through a lead screw nut. The top end of the lead screw 52 is fixedly connected to the bottom center of the support disc 13. A guide sleeve 121 is fixedly provided on the bearing plate 12. The lifting guide rod 53 is inserted through the guide sleeve 121, and the top end of the lifting guide rod 53 is fixedly connected to the bottom of the support disc 13.

[0035] Reference Figure 6 As described above, the folding manipulator 30 includes an openable and closable clamping arm 31, an opening and closing cylinder 32 for opening or closing the clamping arm 31, a turning cylinder 33 for driving the clamping arm 31 to rotate up and down in a vertical plane, and a rotating motor 34 for driving the clamping arm 31 to rotate left and right in a horizontal plane. The turning cylinder 33 is fixed through a cylinder fixing seat 331. Two connecting parts 332 are respectively extended forward from both sides of the front end of the cylinder fixing seat 331. The front ends of the connecting parts 332 are connected with two connecting arms 333 through pin shafts. Each connecting arm 333 is correspondingly hinged with a clamping arm 31, and the connecting arm 333 is connected to the lower part of the clamping arm 31.

[0036] Reference Figure 6 As described above, an opening and closing cylinder 32 is further fixed in the connecting part 332. The opening and closing cylinder 32 is connected with a push block 321. Two bent inclined blocks 322 are respectively connected to both sides of the push block 321. The bent parts of each bent inclined block 322 are hinged on the connecting part 332, and the ends of the bent inclined blocks 322 are correspondingly connected with a connecting arm 333 through long holes; the piston rod of the turning cylinder 33 is hinged to the upper part of the clamping arm 31 through a connecting rod 334 and a hinge 335; the rotating motor 34 is fixed on a motor fixing seat 341. The main shaft of the rotating motor 34 is connected with a driving gear 342, and the rear end of the cylinder fixing seat 331 is fixedly connected with a driven gear 343, and the driven gear 343 is meshed and connected with the driving gear 342.

[0037] The opening and closing cylinder 32 moves forward, and the pushing block pushes the two bent inclined blocks 322 to move to both sides, separating the two connecting arms 333, thereby driving the two clamping arms 31 to open. Conversely, the clamping arms 31 are closed. When the piston rod of the flipping cylinder 33 retracts backward, the clamping arms 31 are pulled to flip upward through the connecting rod 334 and the hinge 335. Conversely, they flip downward. When the rotating cylinder 34 rotates, the driving gear 342 drives the driven gear 343 to rotate, thereby causing the cylinder fixing seat 331 connected to the driven gear 343 to rotate.

[0038] Referring to Figure 1 , a manipulator guide rail 35 fixed to the carrier plate 12 is correspondingly provided below each origami manipulator 30, and the bottom of each motor fixing seat 341 is slidably disposed on the manipulator guide rail 35 through an axial slider 341.

[0039] The working process of the inner packaging origami machine for Pu-erh tea cakes of the present invention is as follows:

[0040] 1. The vertical lifting drive mechanism II operates, causing the support disc to rise to slightly below the support flat plate.

[0041] 2. The tissue paper and the Pu-erh tea cake are respectively conveyed to above the through holes of the support flat plate in sequence by their respective conveying mechanisms, and the tissue paper equalizing mechanism is lowered to contact the tea cake and align with the outer peripheral edge of the tea cake.

[0042] 3. The support disc synchronously descends. Under the action of the tissue paper equalizing mechanism, the tissue paper is equally spaced and separated into several arc-shaped pieces on the outer circumference of a cylinder.

[0043] 4. The origami manipulators beside each arc-shaped piece clamp the arc-shaped piece to form a fan-shaped blade. Subsequently, the tissue paper equalizing mechanism moves upward, and all the origami manipulators fold the fan-shaped blade in the same clockwise direction. The ends of all the fan-shaped blades away from the origami manipulators are sequentially stacked at the center of the support disc.

[0044] 5. The pressing block acts downward, pressing the folded paper at the superposition of the ends of all the fan-shaped blades into the central groove of the Pu-erh tea cake to complete the origami action.

[0045] 6. Finally, the pressing block moves upward, and the support disc moves upward to above the origami manipulator, and the Pu-erh tea cake is sent out for labeling.

[0046] The above is only the specific embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification made to the present invention using this concept shall fall within the scope of infringement of the protection of the present invention.

Claims

1. A folding machine for the inner packaging of Pu-erh tea cakes, characterized in that: it includes a frame, a tissue paper equalizing mechanism and several folding manipulators. A support flat plate is provided on the frame. A through hole is opened in the center of the support flat plate. The tissue paper equalizing mechanism is provided directly above the through hole. A first lifting drive mechanism for driving it to move in the vertical direction is correspondingly provided on the tissue paper equalizing mechanism. A support disc that can move in the vertical direction is provided directly below the through hole. Several of the folding manipulators are equidistantly provided on the peripheral side surface of the support disc. A pressing block for pressing all the folded papers into the grooves of the Pu-erh tea cakes is also provided directly above the through hole. The tissue paper equalizing mechanism includes a flange plate and several equalizing folding plates. Several of the equalizing folding plates are annularly and matrix-arranged on the bottom circumferential surface of the flange plate. The folding manipulator includes an openable and closable clamping arm, an opening and closing air cylinder for opening or closing the clamping arm, a flipping air cylinder for driving the clamping arm to rotate up and down in the vertical plane, and a rotating motor for driving the clamping arm to rotate left and right in the horizontal plane. The flipping air cylinder is fixed through a cylinder fixing seat. Two connecting parts are respectively extended forward on both sides of the front end of the cylinder fixing seat. The front ends of the connecting parts are connected with two connecting arms through pin shafts. Each connecting arm is correspondingly hinged with one of the clamping arms. An opening and closing air cylinder is also fixedly provided in the connecting part. The opening and closing air cylinder is connected with a push block. Both sides of the push block are respectively connected with a bent inclined block. The bent part of each bent inclined block is hinged on the connecting part. The end of the bent inclined block is correspondingly connected with one of the connecting arms through a long hole. The piston rod of the flipping air cylinder is hinged with the upper part of the clamping arm through a connecting rod and a hinge. The rotating motor is fixed on a motor fixing seat. The main shaft of the rotating motor is connected with a driving gear. The rear end of the cylinder fixing seat is fixedly connected with a driven gear. The driven gear is meshed and connected with the driving gear.

2. A folding machine for the inner packaging of Pu-erh tea cakes according to claim 1, characterized in that: the cross section of each of the equalizing folding plates is L-shaped. The equalizing folding plate includes a vertical standing plate and a vertical baffle plate connected to the inner side of the vertical standing plate. A gap is left between every two adjacent vertical baffle plates.

3. A folding machine for the inner packaging of Pu-erh tea cakes according to claim 1, characterized in that: the first lifting drive mechanism includes a tissue paper equalizing mechanism connecting bracket, a vertical guiding rod, a vertical guiding sleeve, and a first lifting air cylinder. Two vertical guiding rods are fixedly connected to the top surface of the flange plate. The tissue paper equalizing mechanism connecting bracket is respectively sleeved on the vertical guiding rods through two vertical guiding sleeves. The first lifting air cylinder is vertically fixed on the tissue paper equalizing mechanism connecting bracket. The piston rod of the first lifting air cylinder is connected to the center of the top surface of the flange plate through a connecting plate and a hollow connecting sleeve.

4. A folding machine for the inner packaging of Pu-erh tea cakes according to claim 3, characterized in that: the pressing block is arranged directly below the center of the bottom of the flange plate. The pressing block is connected with a second lifting air cylinder through a lifting rod. The lifting rod vertically penetrates through the hollow connecting sleeve. The second lifting air cylinder is fixed on the tissue paper equalizing mechanism connecting bracket.

5. A folding machine for the inner packaging of Pu-erh tea cakes as described in claim 3, characterized in that: A transverse driving mechanism for driving the left and right movement of the tissue paper equalizing mechanism is further provided on the frame. The transverse driving mechanism includes a transverse guide rail and a transverse driving cylinder. The connecting bracket of the tissue paper equalizing mechanism is slidably arranged on the transverse guide rail through a transverse slider. The transverse driving cylinder is fixed on the frame and connected to the connecting bracket of the tissue paper equalizing mechanism.

6. A folding machine for the inner packaging of Pu-erh tea cakes as described in claim 1, characterized in that: A bearing plate is provided on the frame. The support disc is arranged in the middle of the bearing plate. An elevating driving mechanism II for driving the support disc to move in the vertical direction is provided below the bottom of the bearing plate.

7. A folding machine for the inner packaging of Pu-erh tea cakes as described in claim 6, characterized in that: The elevating driving mechanism II includes a screw motor, a screw rod and an elevating guide rod. The screw motor is fixed on the frame. The screw rod is connected to the screw motor through a screw nut. The top end of the screw rod is fixedly connected to the center of the bottom of the support disc. A guide sleeve is fixedly provided on the bearing plate. The elevating guide rod passes through the guide sleeve, and the elevating guide rod is fixedly connected to the bottom of the support disc.

8. A folding machine for the inner packaging of Pu-erh tea cakes as described in claim 6, characterized in that: A manipulator guide rail fixed on the bearing plate is correspondingly provided below each folding manipulator. The bottom of each motor fixing seat is slidably arranged on the manipulator guide rail through an axial slider.

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