Used for the ejection mechanism of the injection mold of the motorcycle front guard

Abstract

The present invention belongs to the field of injection molds, and specifically discloses an ejection mechanism for an injection mold for a front guard plate of a motorcycle, comprising a bracket, wherein a push rod is provided on the bracket; a first push rod is provided on the bracket, and a first pipe passes through the first push rod and the bracket; the first push rod is linked to a gear through a first rack, and a screw with a nut is fixed on the gear; the gear is linked to the second push rod through a second rack, and a second pipe passes through the second push rod and a piece-picking frame; a plurality of suction rods with suction cups are provided on the piece-picking frame, and the suction rods and the suction cups are connected to the second pipe through a branch pipe; the first pipe and the second pipe are connected to the air intake pipe through a three-way interface; the three-way interface is slidably connected with a slider, and the slider is connected to a connecting rod; a semicircular ring is provided on the support rod, and the semicircular ring is connected to the nut, and a cylinder is provided on the support rod, and the cylinder piston rod is connected to the semicircular ring, and the rodless cavity of the cylinder is connected to a cooling pipe, and the pipe mouth of the cooling pipe faces the second suction cup; the purpose of the present invention is to solve the problem of easy burns when manually picking up pieces.

Description

Technical Field

[0001] The invention belongs to the field of injection molds, and particularly discloses an ejection mechanism for an injection mold of a front guard plate of a motorcycle. Background Art

[0002] Injection molds are widely used in the production of plastic parts. They are also the tools that give plastic products their complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped components. The injection mold consists of two parts: a movable mold and a fixed mold. The movable mold is mounted on the moving platen of the injection molding machine, while the fixed mold is mounted on the fixed platen of the injection molding machine. During injection molding, the movable and fixed molds are closed to form the gating system and cavity. The hot melt plastic is injected into the cavity through the gating system and then cooled to form the desired product. When the mold is opened, the movable and fixed molds separate to facilitate the removal of the plastic product.

[0003] Most plastic products have a certain shape of shell or cover inside, with thin side walls and thin ribs and deep holes in the middle of the cover. The plastic parts are tightly wrapped in the dynamic mold core, so it is very easy to damage the plastic parts when ejected after molding. The strong wrapping force and the high pressure on the smaller wall surface will inevitably cause demoulding difficulties, seriously affecting product quality. Flat demoulding will also increase the volume of the mold. Therefore, an ejection mechanism is required to push or pull out the plastic product and the solidified material in the runner to avoid damage to the finished product caused by forced demoulding.

[0004] Although the molded products have been cooled and formed, their temperature is still relatively high and manual removal can easily cause burns. Summary of the Invention

[0005] The purpose of the present invention is to provide an ejection mechanism for an injection mold of a motorcycle front guard plate, so as to solve the problem of easy burns when manually removing the parts.

[0006] To solve the above problems, the basic solution of the present invention is:

[0007] The ejection mechanism of the injection mold for the front guard plate of a motorcycle includes a hollow bracket with three hollow push rods on the bracket, the upper ends of the push rods are bonded with a first suction cup with an opening in the center, and the push rods and the corresponding first suction cups are connected through a first branch pipe; a hollow first push rod is fixed to the lower end of the bracket, and a first pipe passes through the first push rod, the bracket and all the first branch pipes are connected; a first rack is fixed to the side of the first push rod, the first rack is meshed with a gear, a coaxially rotating screw is fixed on the gear, and a nut is threaded on the screw; the gear is meshed with a second rack, a hollow second push rod is fixed on the second rack, the second push rod is connected to a hollow pickup rack, and a second pipe passes through the second push rod and the pickup rack; three hollow suction rods are fixed on the pickup rack, the right ends of the suction rods are bonded with a second suction cup with an opening in the center, the suction rods and the corresponding second suction cups are connected through a second branch pipe, and the second branch pipes are all connected to the second pipe; the first pipe and the second pipe are both connected to the suction pipe through a three-way interface The three-way interface is provided with a through groove, and a slider is slidably connected to the three-way interface; a chamber is provided in the center of the slider, a first through hole is provided on the right side of the chamber to communicate with the first pipeline, a second through hole is provided on the left side of the chamber to communicate with the second pipeline, a first baffle is hinged at the first through hole, the first baffle is connected to the inner wall of the chamber by a torsion spring, a second baffle is hinged at the second through hole, and the second baffle is connected to the inner wall of the chamber by a torsion spring; a first lever is provided on the right side of the three-way interface to face the first lever The first through hole, a second lever is fixed on the left side of the three-way interface facing the second through hole; the slider is connected to a hollow connecting rod, a vent is opened on the connecting rod, and the chamber is connected to the hollow part of the connecting rod; the connecting rod is connected to a support rod through the through groove, and a sealing block is bonded to the connecting rod; a semicircular ring is slidably connected to the support rod, and the semicircular ring is fixed on the nut, and a cylinder is fixed on the right end of the support rod, and the piston rod of the cylinder is fixedly connected to the semicircular ring, and the rodless cavity of the cylinder is connected to a cooling pipe, and the pipe mouth of the cooling pipe faces the second suction cup.

[0008] The basic principle of this solution is: after the front guard plate is formed, the movable mold leaves the fitting state with the fixed mold, and the forward and reverse motors and air pumps are started.

[0009] The forward and reverse motors drive the gears to rotate counterclockwise, and the screw and gear rotate coaxially. The rotation of the screw drives the nut to move forward, and the nut drives the semicircular ring to move forward, and the semicircular ring pushes the piston rod of the cylinder to move; since the friction between the piston plate in the cylinder and the inner wall of the cylinder is large, the semicircular ring drives the entire cylinder to move by pushing the piston rod of the cylinder, and at the same time the cylinder drives the support rod to move forward, and the support rod drives the slider to slide in the three-way interface, and the slider slides to the second pipe to block the second pipe; at this time, the second lever applies a thrust to the second baffle, and the second baffle swings, thereby deforming the second torsion spring, and the second pipe is connected to the outside world through the connecting rod and the vent, while the first baffle remains closed to the first through hole.

[0010] The counterclockwise rotation of the gear drives the first rack to move upward, the first rack drives the first push rod to move upward, the first push rod pushes the bracket and the push rod to move upward, the push rod contacts the formed front guard plate, and then the push rod pushes the front guard plate out of the cavity of the fixed mold; at the same time, the counterclockwise rotation of the gear drives the second rack to move to the right, the second rack drives the second push rod to move to the right, and at the same time the pickup rack also moves to the right, and the pickup rack drives the suction rod to move to the right close to the front guard plate.

[0011] When the slider blocks the second pipe, the semicircular ring continues to pull the cylinder, and the support rod is now blocked by the edge of the through groove and cannot move forward; therefore, the third push rod also stops moving, and since the cylinder is fixed on the third push rod, the cylinder also stops moving forward, but the piston rod of the cylinder is pushed by the semicircular ring, and the piston rod continues to move forward, and the piston rod drives the piston plate to move forward, thereby squeezing the gas in the rodless cavity; the pressure in the rodless cavity increases, and the gas in the rodless cavity flows out from the cooling pipe, and finally the gas is blown onto the front guard plate, and the front guard plate is cooled again.

[0012] Since the slider blocks the second pipe, the air pump extracts the gas in the first pipe and the first branch pipe through the suction pipe. At the same time, the air in the first suction cup is sucked away through the first branch pipe, and the first suction cup forms a negative pressure to adsorb the front guard plate.

[0013] When the suction rod contacts the front guard plate, the forward and reverse motors reverse, and the forward and reverse motors drive the gear to rotate clockwise. The clockwise rotation of the gear drives the screw to rotate clockwise. The screw drives the nut to move backward, and the nut drives the semicircular ring to move backward. The semicircular ring pulls the piston rod of the cylinder to move; due to the large friction between the piston plate and the inner wall of the cylinder in the cylinder, the semicircular ring drives the entire cylinder to move by pulling the piston rod of the cylinder. At the same time, the cylinder drives the support rod to move backward, and the support rod drives the slider to slide in the three-way interface.

[0014] The slider slides toward the first pipe, blocking the first pipe and connecting the second pipe to the intake pipe; at this time, the first lever presses the first baffle, and the first baffle swings, thereby deforming the first torsion spring, and the first pipe is connected to the outside through the connecting rod and the air vent on the connecting rod; at the same time, the second baffle loses the thrust exerted on the second lever, and the second torsion spring begins to recover its deformation. Under the action of the second torsion spring, the second baffle returns to its initial state, closing the second through hole.

[0015] When the slider blocks the first pipe, the semicircular ring continues to pull the cylinder. At this time, the support rod is blocked by the edge of the through groove and cannot continue to move backward; therefore, the third push rod also stops moving. Since the cylinder is fixed on the third push rod, the cylinder also stops moving backward, but the piston rod of the cylinder is pulled by the semicircular ring, and the piston rod continues to move backward. The piston rod drives the piston plate to move backward, thereby reducing the pressure in the rodless chamber, and the external gas enters the rodless chamber through the cooling pipe.

[0016] The air pump draws out the gas in the second pipe and the second branch pipe through the suction pipe, and the air in the second suction cup is sucked away through the second branch pipe at the same time. The second suction cup forms a negative pressure to adsorb the front guard plate; since the first pipe is connected to the outside through the connecting rod and the air vent, the outside gas enters the first pipe, the first branch pipe and the first suction cup, the negative pressure in the first suction cup disappears, and the first suction cup loses its adsorption to the front guard plate.

[0017] The gear rotates counterclockwise to drive the first rack to move downward, the first rack drives the first push rod to move downward, the first push rod pushes the bracket and the push rod to move downward, the push rod breaks away from contact with the front guard plate, and the push rod continues to move downward until it returns to its initial position; at the same time, the gear rotates counterclockwise to drive the second rack to move to the left, the second rack drives the second push rod to move to the left, and the piece picking rack also moves to the left, the piece picking rack drives the suction rod to move to the left, and the suction rod drives the front guard plate to move to the left.

[0018] When the front guard plate moves to above the slide plate, the forward and reverse motors reverse again. After the above linkage process, the slider blocks the second pipe again. The second pipe, the second branch pipe and the second suction cup are connected to the outside world through the vent hole of the connecting rod. The negative pressure in the second suction cup disappears, and the second suction cup loses its adsorption force on the front guard plate. The worker then removes the front guard plate.

[0019] Compared with the existing technology, this solution realizes automatic picking up, reduces labor costs, and at the same time cools down the front guard plate again while picking up the items to avoid burns caused by manual contact; the use of a suction cup to contact the front guard plate can better prevent the front guard plate from swinging when it is ejected, thereby preventing it from falling and being damaged.

[0020] Furthermore, air holes are provided on the air intake pipe.

[0021] When the air pump stops pumping, the outside gas enters through the air holes on the suction pipe, increasing the pressure, so that the second suction cup loses its adsorption on the front guard plate, making it easier for workers to pick up the parts.

[0022] Furthermore, a slide is fixed below the pickup rack, and a collection box is placed below the slide.

[0023] The front guard plates are collected by using a slide plate, which not only facilitates collection but also prevents the front guard plates from falling directly into the collection box and being damaged by impact.

[0024] Furthermore, sealing rings are provided at both ends of the slider to enhance the sealing effect of the slider when blocking the pipeline.

[0025] Furthermore, lubricating oil is applied between the slider and the tee interface to reduce friction and prevent the slider from getting stuck in the tee interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Cross-sectional view in the AA direction;

[0028] Figure 3 for Figure 1 Left view of;

[0029] Figure 4 for Figure 3 A magnified schematic diagram of point B in the middle;

[0030] Figure 5 for Figure 3 Enlarged schematic diagram of point C in the middle;

[0031] Figure 6 for Figure 4 Enlarged schematic diagram of point D in the middle. DETAILED DESCRIPTION

[0032] The following is further described in detail through specific implementation methods:

[0033] The figure marks in the drawings of the specification include: fixed mold 1, bracket 2, push rod 3, first suction cup 4, first branch pipe 5, first push rod 6, first pipeline 7, first rack 8, gear 9, second rack 10, second push rod 11, second pipeline 12, picking rack 13, second suction cup 14, second branch pipe 15, screw 16, nut 17, semicircular ring 18, three-way interface 19, slider 20, connecting rod 21, support rod 22, suction pipe 23, air pump 24, sealing block 25, motor 26, chamber 27, first baffle 28, second baffle 29, first torsion spring 30, second torsion spring 31, first through hole 32, first shift rod 33, second through hole 34, second shift rod 35, cooling pipe 36, cylinder 37, rodless chamber 38, piston rod 39, suction rod 40.

[0034] The embodiment is basically as shown in the attached Figure 1 、 Figure 2 and Figure 3 As shown: an ejection mechanism for an injection mold for a front fender of a motorcycle, comprising a hollow bracket 2, three hollow ejector rods 3 being provided on the bracket 2, the upper ends of the ejector rods 3 being bonded with first suction cups 4 with openings in the center, the ejector rods 3 being connected to the corresponding first suction cups 4 via first branch pipes 5; a hollow first push rod 6 being fixed to the lower end of the bracket 2, a first pipe 7 passing through the first push rod 6, the bracket 2 being connected to all the first branch pipes 5; a first rack 8 being fixed to the side of the first push rod 6, the first rack 8 being meshed with a gear 9, the gear 9 being fixed to the output shaft of a forward and reverse motor 26, a coaxially rotating screw 16 being fixed to the gear 9, the screw 16 being threadedly connected with a nut 17.

[0035] The gear 9 is engaged with a second rack 10, and a hollow second push rod 11 is fixed on the second rack 10. The second push rod 11 is connected to a hollow piece-picking rack 13, and a second pipe 12 runs through the second push rod 11 and the piece-picking rack 13; three hollow suction rods 40 are fixed on the piece-picking rack 13, and the right ends of the suction rods 40 are glued with second suction cups 14 with openings in the center. The suction rods 40 and the corresponding second suction cups 14 are connected by second branch pipes 15, and the second branch pipes 15 are all connected to the second pipe 12; a slide is fixed under the piece-picking rack 13, and a collection box is placed under the slide.

[0036] like Figure 4 and Figure 6 As shown: the first pipe 7 and the second pipe 12 are connected to the suction pipe 23 through a three-way interface 19. The suction pipe 23 has an air hole, and the other end of the suction pipe 23 is connected to the air pump 24; the three-way interface 19 has a through groove, and the three-way interface 19 is slidably connected to the slider 20, and the two ends of the slider 20 are bonded with sealing rings; the center of the slider 20 has a chamber 27, and the right side of the chamber 27 has a first through hole 32 connected to the first pipe 7, and the left side of the chamber 27 has a second through hole 34 connected to the second pipe 12. A first baffle 28 is hinged at the first through hole 32, and a torsion spring is connected to the first baffle 28 and the inner wall of the chamber 27. A second baffle 29 is hinged at the second through hole 34, and a torsion spring is connected to the second baffle 29 and the inner wall of the chamber 27. A first shift rod 33 is provided on the right side of the three-way interface 19 facing the first through hole 32, and a second shift rod 35 is fixed on the left side of the three-way interface 19 facing the second through hole 34. The slider 20 is connected to a hollow connecting rod 21, and a vent is provided on the connecting rod 21. The chamber 27 is connected to the hollow part of the connecting rod 21.

[0037] like Figure 4 and Figure 5 As shown: the connecting rod 21 is connected to the support rod 22 through the through groove, and a sealing block 25 is bonded to the connecting rod 21; a semicircular ring 18 is slidably connected to the support rod 22, and the semicircular ring 18 is fixed on the nut 17. A cylinder 37 is fixed to the right end of the support rod 22, and the piston rod 39 of the cylinder 37 is fixedly connected to the semicircular ring 18. The rodless cavity 38 of the cylinder 37 is connected to the cooling pipe 36, and the pipe mouth of the cooling pipe 36 is facing the second suction cup 14.

[0038] The specific implementation process is as follows: after the mold processing is completed, the movable mold leaves the bonding state with the fixed mold 1, and the forward and reverse motor 26 and the air pump 24 are started.

[0039] The forward and reverse motor 26 drives the gear 9 to rotate counterclockwise, and the screw 16 rotates coaxially with the gear 9. The rotation of the screw 16 drives the nut 17 to move forward, and the nut 17 drives the semi-circular ring 18 to move forward, and the semi-circular ring 18 pushes the piston rod 39 of the cylinder 37 to move; since the friction between the piston plate in the cylinder 37 and the inner wall of the cylinder 37 is large, and the pressure between the rodless cavity 38 and the rod cavity in the cylinder 37 is in a balanced state, the semi-circular ring 18 drives the entire cylinder 37 to move by pushing the piston rod 39 of the cylinder 37, and At this time, the cylinder 37 drives the support rod 22 to move forward, and the support rod 22 drives the slider 20 to slide in the three-way interface 19. The slider 20 slides to the second pipe 12 and blocks the second pipe 12. At this time, the second lever 35 applies a thrust to the second baffle 29, and the second baffle 29 swings, thereby deforming the second torsion spring 31. The second pipe 12 is connected to the outside through the connecting rod 21 and the vent. Since the pressure inside the first through hole 32 is negative pressure, the first baffle 28 keeps the first through hole 32 closed.

[0040] The gear 9 rotates counterclockwise to drive the first rack 8 to move upward, the first rack 8 drives the first push rod 6 to move upward, the first push rod 6 pushes the bracket 2 and the push rod 3 to move upward, the push rod 3 contacts the formed front guard plate, and then the push rod 3 pushes the front guard plate out of the cavity of the fixed mold 1; at the same time, the gear 9 rotates counterclockwise to drive the second rack 10 to move right, the second rack 10 drives the second push rod 11 to move right, and at the same time the pickup rack 13 also moves to the right, and the pickup rack 13 drives the suction rod 40 to move to the right close to the front guard plate.

[0041] When the slider 20 blocks the second pipe 12, the semicircular ring 18 continues to pull the cylinder 37. At this time, the support rod 22 is blocked by the edge of the through groove and cannot continue to move forward; therefore, the third push rod also stops moving. Since the cylinder 37 is fixed on the third push rod, the cylinder 37 also stops moving forward, but the piston rod 39 of the cylinder 37 is pushed by the semicircular ring 18, and the piston rod 39 continues to move forward. The piston rod 39 drives the piston plate to move forward, thereby squeezing the gas in the rodless chamber 38; the pressure in the rodless chamber 38 increases, and the gas in the rodless chamber 38 flows out from the cooling pipe 36, and finally the gas is blown onto the front guard plate, and the front guard plate is cooled again.

[0042] Since the slider 20 blocks the second pipe 12, the air pump 24 extracts the gas in the first pipe 7 and the first branch pipe 5 through the suction pipe 23. At the same time, the air in the first suction cup 4 is extracted through the first branch pipe 5, and the first suction cup 4 forms a negative pressure to adsorb the front guard plate.

[0043] When the suction rod 40 contacts the front guard plate, the forward and reverse motor 26 reverses, and the forward and reverse motor 26 drives the gear 9 to rotate clockwise. The clockwise rotation of the gear 9 drives the screw 16 to rotate clockwise, and the screw 16 drives the nut 17 to move backward. Figure 3 The center left direction is backward, the nut 17 drives the semicircular ring 18 to move backward, and the semicircular ring 18 pulls the piston rod 39 of the cylinder 37 to move; since the friction between the piston plate in the cylinder 37 and the inner wall of the cylinder 37 is large, the semicircular ring 18 drives the entire cylinder 37 to move by pulling the piston rod 39 of the cylinder 37, and at the same time, the cylinder 37 drives the support rod 22 to move backward, and the support rod 22 drives the slider 20 to slide in the three-way interface 19.

[0044] The slider 20 slides toward the first pipe 7, blocking the first pipe 7, so that the second pipe 12 is connected to the intake pipe 23; at this time, the first lever 33 presses the first baffle 28, and the first baffle 28 swings, thereby deforming the first torsion spring 30, and the first pipe 7 is connected to the outside through the connecting rod 21 and the vent hole on the connecting rod 21; at the same time, the second baffle 29 loses the thrust applied to the second lever 35, and the second torsion spring 31 begins to recover its deformation. Under the action of the second torsion spring 31, the second baffle 29 returns to its initial state, closing the second through hole 34.

[0045] When the slider 20 blocks the first pipe 7, the semicircular ring 18 continues to pull the cylinder 37. At this time, the support rod 22 is supported by the edge of the through groove and cannot continue to move backward; therefore, the third push rod also stops moving. Since the cylinder 37 is fixed on the third push rod, the cylinder 37 also stops moving backward, but the piston rod 39 of the cylinder 37 is pulled by the semicircular ring 18, and the piston rod 39 continues to move backward. The piston rod 39 drives the piston plate to move backward, thereby reducing the pressure in the rodless chamber 38, and the external gas enters the rodless chamber 38 through the cooling pipe 36.

[0046] The air pump 24 extracts the gas in the second pipe 12 and the second branch pipe 15 through the suction pipe 23, and the air in the second suction cup 14 is sucked away through the second branch pipe 15. The second suction cup 14 forms a negative pressure to adsorb the front guard plate; since the first pipe 7 is connected to the outside through the connecting rod 21 and the air vent, the outside gas enters the first pipe 7, the first branch pipe 5 and the first suction cup 4, the negative pressure in the first suction cup 4 disappears, and the first suction cup 4 loses its adsorption of the front guard plate.

[0047] The gear 9 rotates counterclockwise to drive the first rack 8 to move downward, the first rack 8 drives the first push rod 6 to move downward, the first push rod 6 pushes the bracket 2 and the push rod 3 to move downward, the push rod 3 breaks away from the contact with the front guard plate, and the push rod 3 continues to move downward until it returns to its initial position; at the same time, the gear 9 rotates counterclockwise to drive the second rack 10 to move left, the second rack 10 drives the second push rod 11 to move left, and at the same time the piece picking rack 13 also moves to the left, the piece picking rack 13 drives the suction rod 40 to move left, and the suction rod 40 drives the front guard plate to move left.

[0048] When the front guard plate moves to above the slide plate, the air pump 24 and the forward and reverse motor 26 are turned off, and the air pump 24 stops extracting gas. Since the pressure in the second pipe 12, the second branch pipe 15 and the second suction cup 14 is negative, the external gas enters through the air holes on the suction pipe 23, increasing the pressure in the second suction cup 14, thereby causing the second suction cup 14 to lose its adsorption of the front guard plate, and the front guard plate falls onto the slide plate and slides into the collection box under the action of its own gravity.

[0049] The above is only an embodiment of the present invention, and common knowledge in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several variations and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Used in the ejection mechanism of the injection mold for the front guard of motorcycles, characterized by: The bracket comprises a hollow bracket, on which are provided a plurality of hollow push rods, the upper ends of the push rods are all bonded with first suction cups with openings in the center, and the push rods and the corresponding first suction cups are all connected through first branch pipes; a hollow first push rod is fixed at the lower end of the bracket, and the first pipe passes through the first push rod, and the bracket is connected with all the first branch pipes; a first rack is fixed on the side of the first push rod, and the first rack is meshed with a gear, which is fixed on the output shaft of the forward and reverse motor, and a coaxially rotating screw is fixed on the gear, and a nut is threaded on the screw; the gear is meshed with a second rack, A hollow second push rod is fixed on the second rack, and a hollow piece-picking rack is connected to the second push rod, and a second pipe runs through the second push rod and the piece-picking rack; a plurality of hollow suction rods are fixed on the piece-picking rack, and a second suction cup with an opening in the center is bonded to the right end of the suction rods, and the suction rods and the corresponding second suction cups are connected through a second branch pipe, and the second branch pipes are connected to the second pipe; the first pipe and the second pipe are both connected to the suction pipe through a three-way interface, and the other end of the suction pipe is connected to an air pump; a through groove is provided on the three-way interface, and a slider is slidably connected in the three-way interface ; A chamber is opened in the center of the slider, a first through hole is opened on the right side of the chamber and is connected to the first pipe, a second through hole is opened on the left side of the chamber and is connected to the second pipe, a first baffle is hinged at the first through hole, the first baffle is connected to the inner wall of the chamber by a torsion spring, a second through hole is hinged at the second baffle, and the second baffle is connected to the inner wall of the chamber by a torsion spring; a first shift rod is provided on the right side of the three-way interface and is opposite to the first through hole, a second shift rod is fixed on the left side of the three-way interface and is opposite to the second through hole; the slider is connected to a hollow connecting rod, a vent is opened on the connecting rod, the chamber is connected to the hollow part of the connecting rod, and the first pipe The air channel and the second air channel are connected to the outside world through the connecting rod and the air vent; the connecting rod is connected to the support rod through the through groove, and the through groove has an edge for blocking the support rod, and a sealing block is bonded to the connecting rod; a semicircular ring is slidably connected to the support rod, and the semicircular ring is fixed on the nut, and a cylinder is fixed on the right end of the support rod, and the piston rod of the cylinder is fixedly connected to the semicircular ring, and the rodless cavity of the cylinder is connected to a cooling pipe, and the pipe mouth of the cooling pipe faces the second suction cup; a slide is fixed under the picking rack, and a collection box is placed under the slide; lubricating oil is applied between the slider and the three-way interface.

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