A pen holder collecting device and a pen holder collecting method

Abstract

The present application relates to a pen collection device and a collection method thereof, which includes a frame, a conveying member, and a guide assembly. The guide assembly includes a plurality of guide tubes, an upper limit member, and a lower limit member. The upper end of the guide tube is fixed to the upper limit member. The upper end of the guide tube is arranged along the arrangement direction of the pen held by the manipulator. The lower end of the guide tube is inserted into the lower limit member and fixed to the lower limit member. The lower end of the guide tube is arranged along the arrangement direction of the groove for placing the pen in the collection box. The manipulator places the pen straight in the guide tube, and then the pen moves along the guide tube and rotates to a horizontal state. Then the pen detaches from the guide tube and enters the collection box, so that the pen can automatically fall into the groove of the collection box. The manipulator does not need to rotate the pen to a horizontal state during the material removal process, thereby reducing the working steps of the manipulator and making the process of placing the pen in the collection box more efficient.

Description

Technical Field

[0001] The present application relates to the technical field of cosmetic pen production equipment, and in particular to a pen holder collecting device and a collecting method thereof. Background Art

[0002] Cosmetic brushes are usually composed of a pen holder and bristles or other components. In order to improve production efficiency, the pen holder is usually produced separately, and then the produced pen holder is combined with other components as needed. After the pen holder is produced, it is usually placed in a collection box, which is used to transport the pen holder.

[0003] Currently, a robot is usually used to collect the pen shafts and then directly put them into a collection box. However, when the robot clamps the pen shafts from the injection molding machine, the pen shafts are in a vertical state, while the pen shafts in the collection box are usually in a horizontal state. Therefore, the robot needs to rotate to a horizontal state before placing the pen shafts in the collection box, which results in a slower overall speed.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above problems. Summary of the invention

[0005] In order to make the collection of pen holders more efficient, the present application provides a pen holder collection device and a collection method thereof.

[0006] The present application provides a pen holder collection device and a collection method thereof, which adopts the following technical solutions:

[0007] A pen holder collection device and a collection method thereof, comprising a frame, a conveying member arranged on the frame for conveying a collection box, and a guide assembly arranged on the frame for guiding the pen holders into the collection box, the guide assembly comprising a plurality of guide tubes for guiding the movement of the pen holders, an upper limit member for limiting the upper end position of the guide tubes, and a lower limit member for limiting the lower end position of the guide tubes, the upper end of the guide tube is fixed to the upper limit member, the upper end of the guide tube is arranged along the arrangement direction of the pen holders grasped by a manipulator, the lower end of the guide tube is passed through the lower limit member and fixed to the lower limit member, the lower end of the guide tube is arranged along the arrangement direction of the grooves in the collection box for placing the pen holders, the lower end of the guide tube is arranged above the collection box, and the upper limit member and the lower limit member are both fixed to the frame.

[0008] By adopting the above technical solution, the robot places the pen shaft vertically in the guide tube, and then the pen shaft moves along the guide tube and rotates to a horizontal state, and then the pen shaft detaches from the guide tube and enters the collection box, so that the pen shaft can automatically fall into the groove of the collection box. The robot does not need to rotate the pen shaft to a horizontal state during the unloading process, thereby reducing the working steps of the robot and making the process of placing the pen shaft in the collection box more efficient.

[0009] Optionally: the frame is also provided with a first stacking assembly for stacking the collection boxes, the first stacking assembly is respectively arranged on both sides of the conveying direction of the conveying member, the first stacking assembly includes a vertical stacking member vertically sliding on the frame, a vertical stacking driving member driving the vertical stacking member to move vertically, a horizontal stacking member horizontally sliding on the vertical stacking member and a horizontal stacking driving member driving the horizontal stacking member to move horizontally, the horizontal stacking driving member abuts against the side wall of the collection box, and the adjacent first stacking assemblies jointly clamp the collection box and drive the collection box to move vertically.

[0010] By adopting the above technical solution, after completing the collection of the pen shafts in one collection box, the collection box full of pen shafts can be moved to the bottom of the other collection boxes full of pen shafts, so that multiple collection boxes full of pen shafts can be stacked, so that multiple collection boxes can be moved simultaneously during subsequent movement, making the transportation process of the collection boxes more convenient.

[0011] Optionally: the frame is also provided with a return assembly for moving the collection box from which the pen shafts are taken away to the input direction of the conveying member, the return assembly includes a return member for driving the collection box for transportation, and a reciprocating conveying member for driving the collection box to move upward, the return member is arranged below the conveying member and the conveying directions of the two are opposite, the reciprocating conveying member is arranged at the output end of the return member, the reciprocating conveying member can also be vertically arranged on the frame, the frame is provided with a sliding drive member for driving the reciprocating conveying member to move vertically, the upper end of the reciprocating conveying member can be flush with the upper end of the return member, and the upper end of the reciprocating conveying member can also be flush with the upper end of the conveying member.

[0012] By adopting the above technical solution, after the pen holders in the collection box are taken out, the return assembly can move the collection box with the pen holders taken out to the side of the lower end of the guide tube away from the first stacking assembly, so that the collection box can be moved back to the bottom of the guide tube and collect the pen holders.

[0013] Optionally: A second stacking assembly is also provided on the frame, the structure of the second stacking assembly is the same as that of the first stacking assembly, and the second stacking assembly is arranged on both sides of the conveying direction of the reciprocating conveyor after being lifted upward.

[0014] By adopting the above technical solution, the collection boxes that are in a stacked state and collect the pen holders can be placed one by one on the conveying member using the second stacking assembly, so that the collection boxes can pass under the guide tube and collect the pen holders.

[0015] Optionally: A limit assembly that hinders the movement of the pen shaft is provided on the lower limit member, and the limit assembly includes a limit rod that slides through the lower limit member and a limit driving member that pushes the limit rod to move back and forth, and the limit rod is provided at the lower end opening of the guide tube.

[0016] By adopting the above technical solution, after the pen holder enters the guide tube and the collecting box below the guide tube has not yet moved into place, the limiting assembly can hinder the pen holder from continuing to move, so that the pen holder will not fall directly onto the conveying member.

[0017] Optional: The upper end of the guide tube is respectively provided with an adjustment component for adjusting its position, and the adjustment component includes a mounting block sleeved on the upper end of the guide tube, and a limit bolt threadedly connected to the mounting block, the side wall of the upper limit positioning piece passes through the limit groove, the side wall of the mounting block with the limit bolt abuts against the upper limit positioning piece, and the limit bolt passes through the limit groove and is connected to the mounting block.

[0018] By adopting the above technical solution, the position of the upper end opening of the guide tube can be adjusted according to the change of the position of the pen shaft, so that after the spacing of the pen shafts changes, the pen shafts can still enter the guide tube.

[0019] Optionally: the frame is also provided with a guide assembly for guiding the pen shaft to fall into the groove of the collection box, the guide assembly includes a guide block slidably arranged on the frame and a guide drive member for driving the guide block to move vertically, a plurality of guide grooves are arranged on the end surface of the guide block close to the lower end of the guide tube, the guide grooves penetrate the lower end of the guide block, the lower end openings of the guide grooves respectively face the grooves of a collection box, the guide block can move into the collection box and abut against the upper end surface of the collection box, and the upper end of the guide groove is higher than the lower end opening of the guide tube.

[0020] By adopting the above technical solution, after the pen holder enters the guide groove, it can stably enter the groove of the collection box under the guidance of the guide groove, so that the pen holder will not be unable to fall into the groove, so that in the subsequent stacking of collection boxes, the collection box located above will not directly squeeze the pen holder.

[0021] Optional: The guide block is provided with a pushing assembly for pushing the pen shaft to move completely into the guide groove, the pushing assembly includes two guide rods slidably arranged on the end of the guide block close to the guide tube, a pushing plate arranged at the end of the guide rod away from the guide block, and a pushing driving member for driving the pushing plate to reciprocate, the pushing plate is also fixed to the ends of the two guide rods away from the guide block, the upper end of the pushing plate is flush with the lower end of the guide block, the height of the pushing plate is smaller than the diameter of the pen shaft, and the guide rods are respectively arranged at the outermost sides of the guide grooves.

[0022] By adopting the above technical solution, when the pen shaft collides with the end face of the guide groove and moves toward the guide tube, the push plate is used to drive the pen shaft to sink completely into the guide groove, so that when the subsequent guide block continues to abut against the upper end of the collection box, the guide block will not press on the pen shaft, so that the surface quality of the pen shaft is not easily affected.

[0023] A pen collection method comprises the following steps:

[0024] S1, take the pen holder out of the injection molding machine and place it vertically in the upper opening of the guide tube;

[0025] S2, the guide block moves downward until it abuts against the upper end of the collection box, the pen holder moves into the guide groove and falls into the groove of the collection box, the push plate moves toward the guide groove and makes the pen holder completely located in the guide groove;

[0026] S3, the guide block is separated from the collection box, the collection box is moved until the pen holder is separated from the bottom of the guide block, the collection box is filled with the pen holder and then the filled collection box is transferred.

[0027] By adopting the above technical solution, after the pen shaft enters the guide tube straightly, the pen shaft moves along the guide tube and rotates to a horizontal state, and then the pen shaft detaches from the guide tube and enters the collection box, so that the pen shaft can automatically fall into the groove of the collection box.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The manipulator places the pen holder straightly in the guide tube, and then the pen holder moves along the guide tube and rotates to a horizontal state, and then the pen holder detaches from the guide tube and enters the collection box, so that the pen holder can automatically fall into the groove of the collection box. The manipulator does not need to rotate the pen holder to a horizontal state during the unloading process, thereby reducing the working steps of the manipulator and making the process of placing the pen holder in the collection box more efficient;

[0030] 2. The collection box after taking out the pen holder can be moved back to the bottom of the guide tube under the drive of the return assembly to continue collecting the pen holder. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0032] Figure 2 This is a schematic diagram for illustrating the structure of a guide assembly according to an embodiment of the present application;

[0033] Figure 3 for Figure 1 A magnified view of part A;

[0034] Figure 4 This is a schematic diagram for illustrating the structure of a guide component according to an embodiment of the present application.

[0035] In the figure, 1, frame; 11, conveying member; 2, guide assembly; 21, guide tube; 22, upper limit member; 221, limit groove; 23, lower limit member; 3, adjustment assembly; 31, mounting block; 32, limit bolt; 4, limit assembly; 41, limit rod; 42, limit drive member; 5, first stacking assembly; 51, vertical stacking member; 52, vertical stacking drive member; 53, horizontal stacking member; 54, horizontal stacking drive member; 55, second stacking assembly; 6, blocking assembly; 61, blocking plate; 62, blocking drive member; 7, return assembly; 71, return member; 72, reciprocating conveying member; 73, sliding seat; 74, sliding drive member; 8, guide assembly; 81, guide block; 811, guide groove; 82, guide drive member; 9, pushing assembly; 91, pushing plate; 92, pushing drive member; 93, guide rod. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings.

[0037] The present application discloses a pen holder collecting device, such as Figure 1 and Figure 2 As shown, it includes a frame 1, a conveying member 11 disposed on the frame 1 for conveying a collection box, and a guide assembly 2 disposed on the frame 1 for guiding the pen holder into the collection box. The conveying member 11 in this embodiment is a belt conveyor, and the collection box is disposed on the conveying member 11 for conveying. The guide assembly 2 includes a plurality of guide tubes 21 for guiding the movement of the pen holder, an upper limit member 22 fixed to the frame 1 with bolts, and a lower limit member 23 fixed to the frame 1 with bolts. The upper end of the guide tube 21 is connected to the upper limit member 22, and the lower end of the guide tube 21 is connected to the lower limit member 23. The upper limit member 22 is parallel to the arrangement direction of the pen holders clamped by the manipulator. In this embodiment, the guide tube 21 is a transparent hose, and the upper end of the guide tube 21 is arranged along the length direction of the upper limit member 22. The lower limit member 23 is arranged perpendicular to the conveying direction of the conveying member 11. The lower ends of the guide tubes 21 are all passed through the lower limit member 23 and are arranged along the length direction of the lower limit member 23. The lower ends of the guide tubes 21 are higher than the collection box arranged on the conveying member 11. After the pen holder falls into the guide tube 21, the pen holder can be turned horizontally and fall into the groove of the collection box under the guidance of the guide tube 21, so that there is no need for the manipulator to rotate to a horizontal position and then place the pen holder in the collection box, thereby making the collection process of the pen holder in the collection box faster.

[0038] like Figure 2As shown, since the arrangement spacing of pen holders of different diameters in the injection molding machine is different, the spacing between adjacent pen holders will also change when the manipulator takes out the pen holder from the injection molding machine. Therefore, the upper end of the guide tube 21 is provided with an adjustment component 3 for adjusting the spacing between adjacent guide tubes 21. The adjustment component 3 includes a mounting block 31 sleeved on the upper end of the guide tube 21, and a limit bolt 32 threadedly connected to the mounting block 31. The guide tube 21 is bonded and fixed to the mounting block 31. A limit groove 221 parallel to the length direction of the upper limit member 22 is penetrated through the horizontal side wall of the upper limit member 22. The mounting block 31 abuts against the side wall of the upper limit member 22 where the limit groove 221 is provided. The limit bolt 32 is penetrated through the limit groove 221 and connected to the mounting block 31, and the head of the limit bolt 32 abuts against the upper limit member 22. The upper end of the guide tube 21 can be adjusted along the upper limit member 22 through the limit assembly 4, so that the spacing of the upper ends of the guide tube 21 can be adjusted. After the spacing of the pen barrels changes, the pen barrels can still smoothly enter the guide tube 21.

[0039] Since the collecting box below the guide tube 21 may not be moved into place when the manipulator moves the pen holder into the guide tube 21 and the pen holder moves downward along the guide tube 21, a limiting assembly 4 for blocking the pen holder is also provided on the lower limiting member 23. The limiting assembly 4 includes a limiting rod 41 passing through the lower limiting member 23 and a limiting driving member 42 for pushing the limiting rod 41 to move. The limiting rod 41 is slidably matched with the lower limiting member 23, and the limiting rod 41 can move to the lower end opening of the guide tube 21 to block the pen holder from extending out of the guide tube 21. The limiting driving member 42 is a cylinder in this embodiment, and the cylinder body of the limiting driving member 42 is fixed on the lower limiting member. The piston rod of the limiting driving member 42 is fixedly installed with the limiting rod 41, so as to drive the limiting rod 41 to switch between blocking the movement of the pen holder and not blocking the movement of the pen holder.

[0040] like Figure 3As shown, in the process of transporting the collection box, a plurality of collection boxes are usually stacked, so that a plurality of collection boxes are transported at the same time. Therefore, the frame 1 is also provided with a first stacking assembly 5 for driving the collection box to move vertically for stacking. The first stacking assembly 5 is respectively arranged on both sides of the conveying direction of the conveying member 11, and the first stacking assembly 5 is arranged on the side of the lower end opening of the guide tube 21 facing the collection box, and is used to lift the collection box filled with pens upward. The first stacking assembly 5 includes a vertical stacking member 51 that slides vertically on the frame 1, a vertical stacking driving member 52 that drives the vertical stacking member 51 to move vertically, a horizontal stacking member 53 that slides horizontally on the vertical stacking member 51, and a horizontal stacking driving member 54 that drives the horizontal stacking member 53 to move horizontally. In this embodiment, the vertical stacking driving member 52 uses a cylinder, and the cylinder body of the vertical stacking driving member 52 is installed on the frame 1 and arranged above the vertical stacking member 51, and the piston rod of the vertical stacking driving member 52 is fixedly installed with the upper end of the vertical stacking member 51. The horizontal stacking member 53 is arranged on the side of the vertical stacking member 51 close to the collection box. The horizontal stacking driving member 54 in this embodiment is a cylinder. The cylinder body of the horizontal stacking driving member 54 is fixedly mounted on the lower end of the vertical stacking driving member 52. The piston rod of the horizontal stacking driving member 54 is fixedly mounted on the horizontal stacking member 53. When the collection box moves between the two first stacking members, the horizontal stacking members 53 approach each other and clamp the collection box and lift it upward by the thickness of one collection box. Then, the next collection box moves to the bottom of the lifted collection box so that the collection boxes can be stacked upward in sequence.

[0041] The frame 1 is also provided with a blocking assembly 6 for preventing the collection box from continuing to move. The blocking assembly 6 is respectively provided on both sides of the conveyor and is located at one end of the first stacking assembly 5 away from the guide assembly 2. The blocking assembly 6 includes a blocking plate 61 that slides horizontally on the frame 1 and a blocking driving member 62 that drives the blocking plate 61 to move. The blocking driving member 62 is a cylinder in this embodiment, and the cylinder body of the blocking driving member 62 is fixedly mounted on the frame 1. The piston rod of the blocking driving member 62 is fixedly mounted on the blocking plate 61, driving the blocking plate 61 to move horizontally and preventing the collection box from moving.

[0042] like Figure 1As shown, after the pen holder in the collection box is taken out in the subsequent work, the collection box with the pen holder taken out needs to be moved back to the side of the lower end of the guide tube 21 away from the first stacking assembly 5. Therefore, a return assembly 7 is also provided on the frame 1, and the return assembly 7 includes a return member 71 for driving the collection box to be transported back, and a reciprocating conveying member 72 for driving the collection box to move upward. In this embodiment, the return member 71 and the reciprocating conveying member 72 are both selected from belt conveyors. The conveying direction of the return member 71 is opposite to the conveying direction of the conveying member 11, and the return member 71 is arranged below the conveying member 11. The conveying direction of the reciprocating conveying member 72 can be switched between two conveying directions. A sliding seat 73 capable of vertical movement is also provided on the frame 1. A sliding driving member 74 capable of driving the sliding seat 73 to move vertically is also provided on the frame 1. The sliding driving member 74 is selected from a cylinder in this embodiment, and the reciprocating conveying member 72 is arranged on the sliding seat 73. After the reciprocating conveyor 72 moves upward, its upper end can be flush with the upper end of the conveying member 11, so that the stacked collection boxes can be conveyed to the conveying member 11. After the reciprocating conveying member 11 moves downward, its upper end can move to be flush with the upper end of the return conveying member 71, so that the collection boxes can be moved from the return conveying member 71 to the reciprocating conveying member 11.

[0043] Since the collection box needs to be in a single state when passing the collection box under the guide tube 21, the frame 1 is also provided with a second stacking assembly 55 having the same structure as the first stacking assembly 5, and the second stacking assembly 55 is arranged on both sides of the reciprocating conveyor 72 and is located above the reciprocating conveyor 72 that moves upward, so as to move the stacked collection boxes upward and enable the collection boxes to pass under the guide tube 21 in a single state.

[0044] like Figure 4 As shown, the frame 1 is also provided with a guide assembly 8 for guiding the pen holder to stably fall into the groove of the collection box. The guide assembly 8 includes a guide block 81 slidably arranged on the frame 1 and a guide driving member 82 for driving the guide block 81 to move vertically. The guide driving member 82 is a cylinder in this embodiment. The guide driving member 82 is installed on the frame 1, and the piston rod of the guide driving member 82 is fixedly installed with the upper end of the guide block 81. The guide block 81 is arranged at one end of the guide tube 21 away from the reciprocating transmission member 72. A guide groove 811 is provided on the end surface of the guide block 81 close to the guide tube 21. The guide groove 811 penetrates the lower end surface of the guide block 81, and the guide groove 811 corresponds to the groove in the collection box one by one. The lower end of the guide block can abut against the upper end of the collection box, and the upper end of the guide groove 811 is higher than the upper end of the lower end opening of the guide tube 21, so that after the pen holder falls into the guide groove 811, the pen holder can directly fall into the groove of the collection box under the guidance of the guide groove 811.

[0045] Since multiple pen holders are placed in the same groove, when the pen holder collides with the guide groove 811, it will move a certain distance toward the guide tube 21. After the collection box moves a certain distance, the guide block 81 will abut against the pen holder when it is pressed down. Therefore, the guide block 81 is also provided with a pushing assembly 9 for pushing the pen holder to completely enter the guide groove 811. The pushing assembly 9 includes two guide rods 93 passing through the guide block 81, a pushing plate 91 fixed to the ends of the two guide rods 93 close to the guide tube 21, and a pushing driving member 92 for driving the pushing plate 91 to move. The pushing driving member 92 is a cylinder in this embodiment. The two guide rods are respectively arranged on the two sides farthest from the groove, and the guide rod 93 is slidably matched with the guide block 81. The pushing driving member 92 is installed at the end of the guide block 81 away from the guide tube 21. The guide rod 93 passes through the guide block 81 and is fixed with an extension plate. The extension plate is fixed to the piston rod of the pushing driving member 92. The lower end of the push plate 91 is flush with the lower end of the guide block 81 , and the height of the push plate 91 is smaller than the diameter of the pen shaft, so that the pen shaft can enter the guide groove 811 from above the push plate 91 , and then the push plate 91 moves so that the pen shaft completely enters the guide groove 811 .

[0046] The implementation principle of this embodiment is as follows: the robot moves the pen holder in the injection molding machine to the top of the guide tube 21, and then the pen holder falls into the guide tube 21 and enters the collection box along the guide tube 21. The collection box moves to abut against the limit plate under the conveying of the conveying member 11, and then the first stacking assembly 5 gradually moves the collection box upward to achieve stacking of the collection box. The collection box with the pen holder removed is moved to the reciprocating conveying member 72 through the return conveying member 71, and the reciprocating conveying member 72 moves upward to be flush with the conveying member 11, and the second stacking assembly 55 lifts the collection box upward so that the collection boxes are moved one by one to the lower end of the guide tube 21.

[0047] A pen collection method comprises the following steps:

[0048] S1, taking the pen holder out of the injection molding machine and placing it vertically in the upper end opening of the guide tube 21;

[0049] S2, the guide block 81 moves downward until it abuts against the upper end of the collection box, the pen holder moves into the guide groove 811 and falls into the groove of the collection box, and the push plate 91 moves toward the guide groove 811 and makes the pen holder completely located in the guide groove 811;

[0050] S3, the guide block 81 is separated from the collection box, the collection box is moved until the pen holder is separated from the bottom of the guide block 81, the collection box is filled with the pen holder and then the filled collection box is transferred.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pen holder collection device, characterized in that: The invention comprises a frame (1), a conveying member (11) arranged on the frame (1) for conveying a collection box, and a guide assembly (2) arranged on the frame (1) for guiding a pen holder into the collection box, wherein the guide assembly (2) comprises a plurality of guide tubes (21) for guiding the movement of the pen holder, an upper limit member (22) for limiting the upper end position of the guide tube (21), and a lower limit member (23) for limiting the lower end position of the guide tube (21), wherein the upper end of the guide tube (21) is fixed to the upper limit member (22), the upper end of the guide tube (21) is arranged along the arrangement direction of the pen holders grasped by the manipulator, the lower end of the guide tube (21) is inserted into the lower limit member (23) and is fixed to the lower limit member (23), and the lower end of the guide tube (21) is fixed to the lower limit member (23). The guide tube (21) is arranged along the arrangement direction of the grooves for placing the pen holders in the collection box, the lower end of the guide tube (21) is arranged above the collection box, and the upper limit member (22) and the lower limit member (23) are both fixed on the frame (1); the upper end of the guide tube (21) is respectively provided with an adjustment component (3) for adjusting its position, the adjustment component (3) comprises a mounting block (31) sleeved on the upper end of the guide tube (21), and a limit bolt (32) threadedly connected to the mounting block (31), the side wall of the upper limit member (22) passes through the limit groove (221), the side wall of the mounting block (31) provided with the limit bolt (32) abuts against the upper limit member (22), the limit bolt (32) passes through the limit groove (221) and is screwed to the mounting block (31). The frame (1) is connected to a block (31); a guide assembly (8) for guiding the pen rod to fall into the groove of the collection box is also provided on the frame (1), the guide assembly (8) comprises a guide block (81) slidably provided on the frame (1) and a guide driving member (82) for driving the guide block (81) to move vertically, a plurality of guide grooves (811) are provided on the end surface of the guide block (81) close to the lower end of the guide tube (21), the guide groove (811) penetrates the lower end of the guide block (81), the lower end openings of the guide grooves (811) respectively face the grooves of a collection box, the guide block (81) can move into the collection box and abut against the upper end surface of the collection box, and the upper end of the guide groove (811) is higher than the lower end opening of the guide tube (21); The guide block (81) is provided with a pushing assembly (9) for pushing the pen holder to move completely into the guide groove (811), the pushing assembly (9) comprising two guide rods (93) slidably arranged at one end of the guide block (81) close to the guide tube (21), a pushing plate (91) arranged at one end of the guide rods (93) away from the guide block (81), and a pushing driving member (92) for driving the pushing plate (91) to move back and forth, the pushing plate (91) is fixed to one end of the two guide rods (93) away from the guide block (81), the upper end of the pushing plate (91) is flush with the lower end of the guide block (81), the height of the pushing plate (91) is less than the diameter of the pen holder, and the guide rods (93) are respectively arranged at the outermost sides of the guide grooves (811).

2. The pen holder collection device according to claim 1, characterized in that: The frame (1) is also provided with a first stacking assembly (5) for stacking the collection boxes. The first stacking assembly (5) is respectively arranged on both sides of the conveying direction of the conveying member (11). The first stacking assembly (5) comprises a vertical stacking member (51) that slides vertically on the frame (1), a vertical stacking driving member (52) that drives the vertical stacking member (51) to move vertically, a horizontal stacking member (53) that slides horizontally on the vertical stacking member (51), and a horizontal stacking driving member (54) that drives the horizontal stacking member (53) to move horizontally. The horizontal stacking driving member (54) abuts against the side wall of the collection box. The adjacent first stacking assemblies (5) jointly clamp the collection box and drive the collection box to move vertically.

3. The pen holder collection device according to claim 2, characterized in that: The frame (1) is also provided with a return assembly (7) for moving the collection box from which the pen holders are taken away to the input direction of the conveying member (11). The return assembly (7) includes a return assembly (71) for driving the collection box to be transported, and a reciprocating conveying member (72) for driving the collection box to move upward. The return assembly (71) is arranged below the conveying member (11) and the conveying directions of the two are opposite. The reciprocating conveying member (72) is arranged at the output end of the return assembly (71). The reciprocating conveying member (72) can also be arranged vertically on the frame (1). A sliding driving member (74) for driving the reciprocating conveying member (72) to move vertically is arranged on the frame (1). The upper end of the reciprocating conveying member (72) can be flush with the upper end of the return assembly (71), and the upper end of the reciprocating conveying member (72) can also be flush with the upper end of the conveying member (11).

4. A pen holder collecting device according to claim 3, characterized in that: The frame (1) is also provided with a second stacking assembly (55), the structure of the second stacking assembly (55) being the same as that of the first stacking assembly (5), and the second stacking assembly (55) being arranged on both sides of the conveying direction of the reciprocating conveying member (72) after being lifted upward.

5. The pen holder collection device according to claim 1, characterized in that: The lower limit member (23) is provided with a limit assembly (4) for preventing the movement of the pen holder, the limit assembly (4) comprising a limit rod (41) slidably arranged on the lower limit member (23) and a limit driving member (42) for pushing the limit rod (41) to reciprocate, the limit rod (41) being arranged at the lower end opening of the guide tube (21).

6. A penholder collection method, using the penholder collection device according to any one of claims 1 to 5, characterized in that: The steps include: S1, taking the pen holder out of the injection molding machine and placing it vertically in the upper opening of the guide tube (21); S2, the guide block (81) moves downward until it abuts against the upper end of the collection box, the pen holder moves into the guide groove (811) and falls into the groove of the collection box, and the push plate (91) moves toward the guide groove (811) and makes the pen holder completely located in the guide groove (811); S3, the guide block (81) is separated from the collection box, the collection box is moved until the pen holder is separated from the bottom of the guide block (81), the collection box is filled with the pen holder, and then the filled collection box is transferred.

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