Injection-molding lens barrel shearing machine and working method thereof

Abstract

The present application relates to a kind of injection lens barrel shearing machines, including rack, the rack is provided with straight vibration feeding mechanism, the side of straight vibration feeding mechanism is provided with shearing mechanism, feeding mechanism is provided between straight vibration feeding mechanism and shearing mechanism, the lower side of shearing mechanism is provided with receiving box.This injection lens barrel shearing machine is fed by straight vibration feeding mechanism, and lens barrel injection parts are grabbed to shearing mechanism by mechanical hand, and the water mouth connecting part is sheared by shearing mechanism, and finished product and waste are collected by receiving box.Cut quality is high, product is beautiful, does not affect assembly, and shearing efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of injection molding lens barrel shearing machine and its working method, to the processing field of optical lens barrel. BACKGROUND

[0002] At present, injection molding machine demand in optical industry is also increasing, for example, the injection molding of lens barrel, the lens barrel injection molding piece after forming is fixed with several pins formed by sprue at the circumferential nozzle connecting portion of lens barrel, the lens barrel is finished product, the pin is waste product, and the finished product and waste product need to be separated by reprocessing to obtain the required finished product accessory.

[0003] Most of the lens barrel injection molding pieces in the prior art are removed by manual line, which not only affects the assembly and the efficiency of manual processing, but also is not suitable for high requirements of shearing. SUMMARY

[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the present application is to provide an injection molding lens barrel shearing machine and its working method.

[0005] To solve the above technical problems, the technical scheme of the present application is: an injection molding lens barrel shearing machine, comprising a rack, a straight vibration feeding mechanism is arranged on the rack, a shearing mechanism is arranged beside the straight vibration feeding mechanism, a mechanical hand for feeding is arranged between the straight vibration feeding mechanism and the shearing mechanism, and a receiving box is arranged below the shearing mechanism.

[0006] Preferably, the straight vibration feeding mechanism comprises a straight vibration feeder, a straight vibration track is fixedly connected to the vibration piece at the top of the straight vibration feeder, a feeding channel extending straight from front to back is arranged on the straight vibration track, a material blocking block is fixedly connected to the rear end of the feeding channel, and the material blocking surface of the material blocking block is a V-shaped isosceles inclined plane with the tip pointing to the rear end side.

[0007] Preferably, the bottom surface of the straight vibration feeder is fixedly connected to an X-axis adjustable plate, a first installation groove strip extending left and right is formed in the X-axis adjustable plate, and the X-axis adjustable plate is locked at the top of a scissor type lifting platform through bolts passing through the first installation groove strip, the bottom of the scissor type lifting platform is installed on a Y-axis adjustable plate, a second installation groove strip extending front and back is formed in the Y-axis adjustable plate, and the Y-axis adjustable plate is locked on the rack through bolts passing through the second installation groove strip.

[0008] Preferably, the left and right sides of the feeding channel are provided with side retaining walls, the top of the feeding channel is provided with an upper cover plate, the upper cover plate is fixedly connected with the top of the left or right side retaining wall, the edge of the upper cover plate is provided with a third mounting groove strip extending left and right, and the upper cover plate is locked at the top of the left or right side retaining wall through bolts penetrating the third mounting groove strip; the upper cover plate does not completely close the opening between the top of the left and right side retaining walls, and the upper cover plate leaves a gap extending forward and backward on the opening.

[0009] Preferably, the shearing mechanism comprises a shearing jig fixedly connected to the rack, a shearing station of the lens barrel injection molding part is arranged on the shearing jig, a lifting knife rod is arranged above the shearing station, a plurality of cutters are fixedly connected to the bottom end of the lifting knife rod, a lifting pressure rod is vertically arranged in the lifting knife rod, and a pressure head is fixedly arranged at the bottom end of the lifting pressure rod.

[0010] Preferably, the number of cutters is the same as the number of nozzle connecting parts of the periphery of the lens barrel injection molding part, and the positions are one-to-one corresponding; the cutting edges of the cutters all face downward, a vertical cutter mounting groove strip is arranged on each cutter, a groove part for mounting the cutter is arranged on the periphery of the lifting knife rod, a plurality of internal threaded holes are vertically arranged in the groove part, and the cutter is locked in one of the internal threaded holes through a bolt penetrating the cutter mounting groove strip; a vertical pressure rod penetrating hole is arranged in the lifting knife rod, and the outer diameter of the pressure head is equal to the outer diameter of the lens barrel of the lens barrel injection molding part.

[0011] Preferably, the shearing jig comprises a material collecting block, a finished product collecting opening and a waste product collecting opening are arranged on the material collecting block, the waste product collecting opening has a plurality of waste product collecting openings and is distributed on the outer peripheral side of the finished product collecting opening, a radially telescopic shutter is arranged in the finished product collecting opening, the peripheral part of the finished product collecting opening below the shutter is connected to the peripheral part of the waste product collecting opening through a downwardly inclined waste material guide groove, and the slot of the waste material guide groove penetrates the material collecting block upwardly; the finished product collecting opening and the waste product collecting opening form a shearing station; the material collecting block is mounted on the upper surface of the base, the finished product collecting opening and the waste product collecting opening penetrate the base, the bottom surface of the material collecting block and the top surface of the base are in contact with each other, a conversion plate is fixedly arranged on the top of the peripheral side of the material collecting block, the conversion plate and the base are connected through an XY axis displacement platform; a plurality of notches are arranged on the top surface of the material collecting block within the circumferential inner edge of the finished product collecting opening, so as to accommodate the protruding part on the outer peripheral side of the lens barrel; a radially extending insertion groove is arranged on the inner peripheral part of the finished product collecting opening of the material collecting block, the shutter is inserted into the insertion groove, the outer end part of the shutter is connected to a telescopic air cylinder, so as to drive the shutter to telescope in the insertion groove; the inner end part of the shutter is aligned with the high end of one of the waste material guide grooves and is provided with an inclined surface, and the inclined surface is inclined from top to bottom along the direction from the shutter to the aligned waste material guide groove.

[0012] Preferably, the collecting box comprises a box body, the inside of the box body is divided into a waste product collecting chamber and a finished product collecting chamber by a horizontal partition plate, the waste product collecting chamber is above, and the finished product collecting chamber is below, the top of the waste product collecting chamber is open and aligned with the waste product collecting opening above, a finished product collecting pipe is arranged through the horizontal partition plate, the top end of the finished product collecting pipe is connected with the finished product collecting opening, and the bottom end of the finished product collecting pipe is connected with the finished product collecting chamber through the horizontal partition plate.

[0013] Preferably, the side of the waste product collecting chamber is provided with a waste product discharging opening, a downwardly-inclined discharging chute plate is arranged on the waste product discharging opening; the side of the finished product collecting chamber is provided with a pulling opening, the inside of the finished product collecting chamber is provided with a finished product collecting cylinder which is arranged to enter and exit the finished product collecting chamber through the pulling opening, the cylinder opening of the finished product collecting cylinder is upwardly directed and aligned with the bottom end of the finished product collecting pipe; and a pulling handle is fixedly arranged on the cylinder wall of the finished product collecting cylinder.

[0014] A working method of an injection-molded lens barrel shearing machine, which is performed according to the following steps: (1) a plurality of lens barrel injection-molded parts on a feeding channel are conveyed from front to back to the position of a blocking block by a straight-vibration feeder, wherein the blocking surface of the blocking block is a V-shaped isosceles inclined plane with a tip pointing to the rear end side, when any pin of the lens barrel injection-molded part touches the V-shaped isosceles inclined plane, one pin of the lens barrel injection-molded part can be moved to the tip corner of the V-shaped isosceles inclined plane under the high-frequency straight vibration of the straight-vibration feeder and the guidance of the V-shaped isosceles inclined plane, the posture of the lens barrel injection-molded part can be adjusted to wait for the clamping of a mechanical hand, and the pin of the lens barrel injection-molded part conveyed to the shearing process is determined in direction; (2) the gate plate of a shearing jig is extended to block the finished product collecting opening, the mechanical hand clamps the lens barrel injection-molded part and places it on the gate plate of the finished product collecting opening, the pin of the lens barrel injection-molded part corresponds to the high end of the waste material guide groove of the waste product collecting opening one by one; the lifting pressure rod is first lowered to drive the pressure head to press the top end of the lens barrel, then the lifting cutter rod is lowered to drive the cutter to downwardly cut the water port connecting part one by one, when the water port connecting part is cut, the pin is separated from the lens barrel and slides into the corresponding waste product collecting opening along the corresponding waste material guide groove, then the gate plate is retracted to unblock the finished product collecting opening, and the lens barrel falls along the finished product collecting opening; (3) when the waste product falls along the waste product collecting opening, it falls into the waste product collecting chamber below to be collected; when the finished product falls along the finished product collecting opening, it falls into the finished product collecting cylinder of the finished product collecting chamber along the finished product collecting pipe.

[0015] Compared with the prior art, the injection-molded lens barrel shearing machine has the following beneficial effects: the injection-molded lens barrel shearing machine feeds through a straight-vibration feeding mechanism, clamps the lens barrel injection-molded part to the shearing mechanism through a mechanical hand, cuts the water port connecting part through the shearing mechanism, and collects the finished product and the waste product through a collecting box. The cut quality is high, the product is beautiful, the assembly is not affected, and the shearing efficiency is high.

[0016] The application will be further described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 This is a schematic diagram illustrating the structure of an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a linear vibratory feeding mechanism.

[0019] Figure 3 This is a schematic diagram of the construction of a linear vibration track.

[0020] Figure 4 This is a schematic diagram of the shearing mechanism.

[0021] Figure 5 This is a schematic diagram of a partial structure of the shearing mechanism.

[0022] Figure 6 This is a schematic diagram of the overall structure of the shearing fixture.

[0023] Figure 7 This is a schematic diagram of a partial structure of a shearing fixture.

[0024] Figure 8 Schematic diagram of the working state of the shearing fixture Figure 1 .

[0025] Figure 9 Schematic diagram of the working state of the shearing fixture Figure 2 .

[0026] Figure 10 Schematic diagram of the receiving box Figure 1 .

[0027] Figure 11 Schematic diagram of the receiving box Figure 2 . Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] like Figures 1-11The embodiment shown provides a shearing machine for injection molding lens barrel, which comprises a frame 1, a straight-vibration feeding mechanism 2 arranged on the frame, a shearing mechanism 3 arranged beside the straight-vibration feeding mechanism, a mechanical hand 4 for feeding arranged between the straight-vibration feeding mechanism and the shearing mechanism, and a receiving box 5 arranged below the shearing mechanism.

[0032] In the embodiment, the straight-vibration feeding mechanism comprises a straight-vibration feeder 1A, a straight-vibration track 2A fixedly connected to the vibrator at the top of the straight-vibration feeder, a feeding channel 3A extending straight from front to back arranged on the straight-vibration track, and a material blocking block 4A fixedly connected to the rear end of the feeding channel, wherein the material blocking surface of the material blocking block is a V-shaped isosceles inclined plane 5A with the tip pointing to the rear end side.

[0033] In the embodiment, the bottom surface of the straight-vibration feeder is fixedly connected to an X-axis adjustable plate 6A, a first installation groove strip 7A extending left and right is arranged on the X-axis adjustable plate, and the X-axis adjustable plate is locked at the top of a scissor-type lifting platform 8A through a bolt penetrating the first installation groove strip, the bottom of the scissor-type lifting platform is installed on a Y-axis adjustable plate 9A, a second installation groove strip 10A extending front and back is arranged on the Y-axis adjustable plate, and the Y-axis adjustable plate is locked on the frame through a bolt penetrating the second installation groove strip. The position of the straight-vibration feeder can be adjusted in front, back, left, right, up and down directions.

[0034] In the embodiment, side blocking walls 11A are fixedly arranged on the left and right sides of the feeding channel, an upper cover plate 17A is arranged on the top of the feeding channel, and the upper cover plate is fixedly connected to the top of the side blocking wall on the left side or the right side; a third installation groove strip 12A extending left and right is arranged on the edge of the upper cover plate, and the upper cover plate is locked at the top of the side blocking wall on the left side or the right side through a bolt penetrating the third installation groove strip; the upper cover plate does not completely close the opening between the top of the left and right side blocking walls, and a gap 13A extending front and back is left on the opening.

[0035] The upper cover plate is used to limit the upward movement of the lens barrel injection molding part, and the gap is used to facilitate the intervention operation when the lens barrel injection molding part is stuck in the feeding channel. The lens barrel injection molding part is uniformly fixedly arranged with three pins 16A formed by a sprue on the outer circumference of the lens barrel 14A and the circumference of the sprue connecting part 15A.

[0036] In the embodiment, the width of the feeding channel is adapted to the maximum width of the lens barrel injection molding part, so as to allow a single lens barrel injection molding part to pass straight. The straight-vibration feeder and the scissor-type lifting platform are prior art, which will not be described in detail here.

[0037] The several lens barrel injection molding pieces on the feeding channel are transported from front to back to the position of the material blocking block by the straight vibration feeder, wherein the material blocking surface of the material blocking block is a V-shaped isosceles inclined plane with a tip pointing to the rear end side, when any pin of the lens barrel injection molding piece touches the V-shaped isosceles inclined plane, with the high-frequency straight vibration of the straight vibration feeder and the guidance of the V-shaped isosceles inclined plane, one pin of the lens barrel injection molding piece can be moved to the tip corner of the V-shaped isosceles inclined plane, the posture of the lens barrel injection molding piece can be adjusted to wait for the clamping of the mechanical hand, and the pin of the lens barrel injection molding piece transported to the shearing process is determined to face.

[0038] In the embodiment of the present application, the shearing mechanism comprises a shearing jig 1C fixed on the rack, a shearing station of the lens barrel injection molding piece is arranged on the shearing jig, a lifting cutter bar 2C is arranged above the shearing station, a plurality of cutters 3C are fixed on the bottom end of the lifting cutter bar, a lifting pressure rod 4C is vertically arranged in the lifting cutter bar, and a pressure head 5C is fixed on the bottom end of the lifting pressure rod.

[0039] In the embodiment of the present application, the number of the cutters is the same as the number of the nozzle connecting parts of the lens barrel injection molding piece, and the positions of the cutters correspond to the positions of the nozzle connecting parts one by one; the cutting edges of the cutters all face downward, a vertical cutter mounting groove 6C is arranged on each of the cutters, a recessed groove part 7C for mounting the cutters is arranged on the periphery of the lifting cutter bar, a plurality of internal threaded holes 8C are vertically arranged in the recessed groove part, the cutters are locked in one of the internal threaded holes by a bolt passing through the cutter mounting groove, and the height of the cutters is adjustable; a vertical pressure rod passing hole 9C is arranged in the lifting cutter bar, and the outer diameter of the pressure head is equal to the outer diameter of the lens barrel of the lens barrel injection molding piece.

[0040] In the embodiment of the present application, the lifting cutter bar and the lifting pressure rod are respectively driven to lift by the air cylinder.

[0041] In the embodiment of the present application, the shearing jig comprises a material collecting block 1B, a finished product collecting port 2B and a waste product collecting port 3B are arranged on the material collecting block, the waste product collecting port has a plurality of parts and is distributed on the outer periphery of the finished product collecting port, a radial retractable shutter 4B is arranged in the finished product collecting port, the periphery of the finished product collecting port below the shutter is connected to the periphery of the waste product collecting port through a downwardly inclined waste material guide groove 5B, and the groove openings of the waste material guide grooves all pass through the material collecting block upwardly; the finished product collecting port and the waste product collecting port form the shearing station; the material collecting block is mounted on the upper surface of a base 6B, the finished product collecting port and the waste product collecting port both pass through the base, the bottom surface of the material collecting block and the top surface of the base are in contact with each other, a conversion plate 7B is fixed on the top of the periphery of the material collecting block, and the conversion plate and the base are connected through an XY axis displacement platform 8B.

[0042] In the embodiment of the present application, the brand of the XY axis displacement platform is Qinxin, and the model is XY axis manual sliding table steel ball type LGY.

[0043] In the embodiment of the present application, the top surface of the material collecting block is provided with a plurality of notches 9B at the edge of the periphery of the finished product collecting port, for allowing the protruding part 10B on the periphery of the lens barrel to be positioned; the material collecting block is provided with a radially extending insertion slot 11B at the inner periphery of the finished product collecting port, the shutter is inserted into the insertion slot, the outer end of the shutter is connected to the telescopic air cylinder 12B, for driving the shutter to extend and retract in the insertion slot; the inner end of the shutter is aligned with the high end of one of the waste material guide slots and is provided with an inclined surface 13B, which is inclined downward from top to bottom along the direction of the shutter to the aligned waste material guide slot.

[0044] In the embodiment of the present application, the finished product collecting port leads to a finished product collecting bin, and the waste product collecting port leads to a waste product collecting bin.

[0045] In the embodiment of the present application, the material collecting box comprises a box body 1D, the inside of the box body is divided into a waste product collecting bin 3D and a finished product collecting bin 4D by a horizontal partition 2D, the waste product collecting bin is above, and the finished product collecting bin is below, the top of the waste product collecting bin is open and is aligned with the waste product collecting port above, the horizontal partition is provided with a finished product collecting pipe 5D, the top end of the finished product collecting pipe is connected to the finished product collecting port, and the bottom end of the finished product collecting pipe leads to the finished product collecting bin after penetrating through the horizontal partition.

[0046] In the embodiment of the present application, the side of the waste product collecting bin is provided with a waste product discharging port 6D, the waste product discharging port is provided with a downwardly inclined discharging chute plate 7D; the side of the finished product collecting bin is provided with a pulling opening 8D, the inside of the finished product collecting bin is provided with a finished product collecting cylinder 9D which enters and exits the finished product collecting bin through the pulling opening, the cylinder opening of the finished product collecting cylinder is upwardly directed and is aligned with the bottom end of the finished product collecting pipe; the cylinder wall of the finished product collecting cylinder is fixedly provided with a pulling handle 10D. When the waste product falls along the waste product collecting port, the waste product falls into the waste product collecting bin below for collection; when the finished product falls along the finished product collecting port, the finished product falls into the finished product collecting bin through the finished product collecting pipe, so that the finished product and the waste product are classified and collected, and the finished product and the waste product are prevented from being mixed together.

[0047] The working method of the injection molding lens barrel shearing machine is carried out according to the following steps: (1) a plurality of lens barrel injection molding parts on the feeding channel are transported from front to back to the position of the material blocking block by the straight vibration feeder, wherein the material blocking surface of the material blocking block is a V-shaped isosceles inclined plane with a tip pointing to the rear end side, when any pin of the lens barrel injection molding part touches the V-shaped isosceles inclined plane, one pin of the lens barrel injection molding part can be moved to the tip corner of the V-shaped isosceles inclined plane under the high-frequency straight vibration of the straight vibration feeder and the guidance of the V-shaped isosceles inclined plane, the posture of the lens barrel injection molding part can be adjusted to wait for the clamping of the manipulator, and the pin of the lens barrel injection molding part transported to the shearing process is determined in direction; (2) the shutter of the shearing jig extends to block the finished product material receiving port, the manipulator clamps the lens barrel injection molding part and places it on the shutter of the finished product material receiving port, the pin of the lens barrel injection molding part corresponds to the high end of the waste material guide groove of the waste product material receiving port one by one; the lifting pressure rod first descends to drive the pressure head to press down the top end of the lens barrel, then the lifting knife rod descends to drive the cutter one by one to align with the water gap connecting part to complete the shearing, when the water gap connecting part is sheared, the pin is separated from the lens barrel and slides into the corresponding waste product material receiving port along the corresponding waste material guide groove, then the shutter retracts the finished product material receiving port to be unblocked, and the lens barrel falls along the finished product material receiving port; (3) when the waste product falls along the waste product material receiving port, it falls into the waste product material receiving bin below for collection; when the finished product falls along the finished product material receiving port, it falls into the finished product collecting cylinder of the finished product material receiving bin along the finished product material receiving tube.

[0048] The above is only the preferred embodiment of the present application, and does not limit other forms of the present application. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical solution of the present application, and according to the technical essence of the present application, still belong to the protection scope of the technical solution of the present application.

Claims

1. An injection barrel shearing machine characterized by: The utility model provides a kind of lens barrel injection molding piece cutting device, including rack, the rack is provided with straight vibration feeding mechanism, the straight vibration feeding mechanism is provided with shearing mechanism in the side, the straight vibration feeding mechanism is provided with the mechanical hand of feeding between shearing mechanism, the lower of shearing mechanism is provided with receiving box;The shearing mechanism includes shearing fixture fixed on rack, the shearing fixture is provided with the shearing station of lens barrel injection molding piece, the top of shearing station is provided with lifting cutter bar, the bottom end of lifting cutter bar is fixed with several cutting knives, the inside of lifting cutter bar is vertically provided with lifting pressure rod, the bottom end of lifting pressure rod is fixed with pressure head;The number of cutting knife is same with the number of nozzle connecting portion of lens barrel injection molding piece periphery, and position also one-to-one correspondence;The cutting edge of cutting knife is all downward, the cutting knife is all provided with vertical cutting knife installation groove, the periphery of lifting cutter bar is all provided with recess portion for installing cutting knife, the recess portion is vertically provided with multiple internal thread holes, and cutting knife is locked in one internal thread hole by bolt passing through cutting knife installation groove;The inside of lifting cutter bar is provided with vertical pressure rod through hole, and the outer diameter of pressure head is equal to the lens barrel outer diameter of lens barrel injection molding piece;The shearing fixture includes receiving block, the receiving block is provided with up-and-down through finished product receiving port and waste receiving port, the waste receiving port has several and is distributed in the outer circumferential side of finished product receiving port, the inside of finished product receiving port is provided with radially telescopic shutter, and the periphery of finished product receiving port below shutter is connected to the periphery of waste receiving port by downwardly inclined waste guide groove, and the slot of waste guide groove is all upwardly through receiving block;Finished product receiving port and waste receiving port form shearing station;The receiving block is installed on the upper surface of base, and finished product receiving port and waste receiving port are all through base, and the bottom surface of receiving block and the top surface of base are in contact with each other, and the top of periphery of receiving block is fixed with one adapter plate, and the adapter plate is connected with base by XY axis displacement platform;The top surface of receiving block is provided with several notches in the circumferential inner edge of finished product receiving port, to let the convex portion of lens barrel outer circumferential side;The receiving block is provided with radially extending insertion slot in the inner periphery of finished product receiving port, the shutter is inserted in insertion slot, and the outer end of shutter is connected with telescopic pneumatic cylinder, to drive shutter telescopic in insertion slot;The inner end of shutter is aligned with the high end of one waste guide groove and is provided with inclined surface, and the inclined surface is inclined from top to bottom along the direction of shutter to aligned waste guide groove.

2. The injection barrel shearing machine of claim 1, wherein: The straight vibration feeding mechanism includes straight vibration feeder, the vibration piece on the top of straight vibration feeder is fixed with straight vibration track, the feeding channel extending straight from front is provided on the straight vibration track, the rear end of feeding channel is fixed with material blocking block, and the material blocking surface of material blocking block is V-shaped isosceles inclined plane with tip towards rear end side.

3. The injection barrel shearing machine of claim 2, wherein: The bottom surface of the straight-vibration feeder is fixed on an X-axis adjustable plate, a first installation groove strip extending left and right is formed on the X-axis adjustable plate, and the X-axis adjustable plate is locked on the top of a scissor-type lifting platform through bolts passing through the first installation groove strip, the bottom of the scissor-type lifting platform is installed on a Y-axis adjustable plate, a second installation groove strip extending front and back is formed on the Y-axis adjustable plate, and the Y-axis adjustable plate is locked on a rack through bolts passing through the second installation groove strip.

4. The injection barrel shearing machine of claim 2, wherein: The left and right sides of the feeding channel are fixedly provided with side blocking walls, the top of the feeding channel is provided with an upper cover plate, and the upper cover plate is fixedly connected with the top of the side blocking wall on the left side or the right side; a third installation groove strip extending left and right is formed on the edge of the upper cover plate, and the upper cover plate is locked on the top of the side blocking wall on the left side or the right side through bolts passing through the third installation groove strip; the upper cover plate does not completely close the opening between the top of the left and right side blocking walls, and the upper cover plate leaves a gap extending front and back on the opening.

5. The injection barrel shearing machine of claim 1, wherein: The material collecting box comprises a box body, the inside of the box body is divided into a waste product collecting bin and a finished product collecting bin by a horizontal partition plate, the waste product collecting bin is above, and the finished product collecting bin is below, the top of the waste product collecting bin is open and aligned with the waste product collecting opening above, a finished product collecting pipe is arranged through the horizontal partition plate, the top end of the finished product collecting pipe is connected with the finished product collecting opening, and the bottom end of the finished product collecting pipe passes through the horizontal partition plate and leads to the finished product collecting bin.

6. The injection barrel shearing machine of claim 5, wherein: A waste product discharging opening is arranged on the side of the waste product collecting bin, and an inclined discharging chute plate is arranged on the waste product discharging opening; a pulling opening is arranged on the side of the finished product collecting bin, a finished product collecting cylinder is arranged in the finished product collecting bin and can enter and exit the finished product collecting bin through the pulling opening, the cylinder opening of the finished product collecting cylinder faces upwards and is aligned with the bottom end of the finished product collecting pipe; and a pulling handle is fixedly arranged on the cylinder wall of the finished product collecting cylinder.

7. A method of operating an injection moulded barrel cutting machine as claimed in any one of claims 1 to 6, characterised in that, The following steps are performed: (1) a plurality of lens barrels on the feeding channel are conveyed from front to back to the position of the blocking block by the straight-vibration feeder, wherein the blocking surface of the blocking block is a V-shaped isosceles inclined plane with a tip pointing to the rear end side, when any pin of the lens barrel contacts the V-shaped isosceles inclined plane, one pin of the lens barrel can be moved to the tip corner of the V-shaped isosceles inclined plane under the high-frequency straight vibration of the straight-vibration feeder and the guidance of the V-shaped isosceles inclined plane, the posture of the lens barrel can be adjusted, and the lens barrel waits to be gripped by the manipulator, so that the pin of the lens barrel conveyed to the shearing process is determined in direction; (2) the shutter plate of the shearing jig protrudes to block the finished product collecting opening, the manipulator grips the lens barrel and places it on the shutter plate of the finished product collecting opening, the pin of the lens barrel corresponds to the high end of the waste material guide groove of the waste product collecting opening one by one; the lifting pressure rod first descends to drive the pressure head to press down the top end of the lens barrel, then the lifting knife rod further descends to drive the cutter to cut down the water port connecting part one by one, when the water port connecting part is cut, the pin is separated from the lens barrel and slides into the corresponding waste product collecting opening along the corresponding waste material guide groove, then the shutter plate retracts to unblock the finished product collecting opening, and the lens barrel falls along the finished product collecting opening; (3) when the waste product falls along the waste product collecting opening, it falls into the waste product collecting bin below for collection; when the finished product falls along the finished product collecting opening, it falls into the finished product collecting cylinder of the finished product collecting bin along the finished product collecting pipe.

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