A plastic plate finishing machine

Abstract

The application relates to the field of plastic processing, in particular to a plastic plate finishing machine, which comprises a conveying unit, the conveying unit is used for conveying plastic plates to be polished, a stabilizing assembly is arranged above the conveying unit, and the stabilizing assembly is used for stabilizing the plastic plates during polishing; one side of the conveying unit is provided with a polishing unit, the polishing unit is used for polishing the edges of the plastic plates; the other side of the conveying unit is provided with a discharging assembly; the discharging assembly is used for discharging the polished plastic plates; the plastic plate finishing machine polishes and removes the burrs and corners of the edges of the upper plate bodies of the stools, can improve the removal effect of the burrs and edges, guarantees the appearance and safety of products, is more efficient compared with manual removal, and polishes more finely, and the upper plate bodies of the stools are collected and uniformly polished, the labor of the material taking personnel is reduced, the material taking personnel can focus on the material taking action, and production safety can be improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of plastic processing, and particularly relates to a plastic plate finishing machine. BACKGROUND

[0002] Plastic plates are generally produced through injection molding, and then cut and polished to finally produce finished products. Some plastic plates are processed through recycled materials, which can not only save production costs, but also realize recycling of resources. For example, a common stool in life, the upper plate body of the stool is a recycled plastic product, and the supporting legs of the stool are steel supporting frames. The stool can be stacked up and down to save space.

[0003] The upper plate body of the stool is formed through injection molding. The edge position of the product formed through injection molding has burrs and corners, which not only affects the appearance of the product, but also may injure the assembly personnel of the stool or the user.

[0004] At present, the burrs and corners on the upper plate body of the stool are removed in the material taking link of injection molding. Generally, the material taking personnel takes down the upper plate body of the stool from the injection molding equipment with one hand, and holds a scalpel with the other hand to cut the burrs and corners along the edge of the upper plate body of the stool. However, the removal is limited and all burrs and corners cannot be removed. Meanwhile, the material taking personnel also needs to prepare the material taking of the next upper plate body of the stool. The whole operation process makes the attention of the personnel in a relatively concentrated state, and long time operation will make the personnel feel tired.

[0005] Therefore, the plastic plate finishing machine is provided for the above problems. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem in the background art.

[0007] The technical scheme adopted by the application to solve the technical problems is that the plastic plate finishing machine comprises a conveying unit, the conveying unit is used for conveying plastic plates to be polished, a stabilizing assembly is arranged above the conveying unit, and the stabilizing assembly is used for stabilizing the plastic plates during polishing; a polishing unit is arranged on one side of the conveying unit, and the polishing unit is used for polishing the edges of the plastic plates; a discharging assembly is arranged on the other side of the conveying unit, and the discharging assembly is used for discharging the polished plastic plates.

[0008] Preferably, the conveying unit comprises a runway-shaped track, a horizontal chain is arranged in the track, sprockets are arranged at both ends of the inner ring of the track, and the sprockets mesh with the chain; a plurality of pin shafts of the chain are rotationally connected with vertical rods, the upper ends of the vertical rods are fixedly connected with a support disc, a plurality of positioning rods are arranged in a circumferential array on the support disc, the support disc is arranged with the plastic plates to be polished, and the positioning rods are inserted into through holes in the plastic plates.

[0009] A gear is fixed on the outer ring of the vertical rod, the gear engages with a rack, and the rack is located at the inner side of one side of the track.

[0010] Preferably, the stabilizing assembly comprises two inner and outer stabilizing rings, the shapes of the two stabilizing rings match the shape of the track, the outer surface of the inner stabilizing ring and the inner surface of the outer stabilizing ring are provided with annular grooves; the vertical rod is fixed with a stabilizing block, the stabilizing block is located above the gear, and the stabilizing block is slidingly connected in the groove.

[0011] Preferably, the polishing unit comprises two groups of polishing motors, the two groups of polishing motors are arranged at the inner and outer sides of one side of the track, and the output ends of the two polishing motors in the same group are drivingly connected with an annular sand belt, and the annular sand belt is attached to the edge of the plastic plate for transmission.

[0012] Preferably, the discharging assembly comprises two groups of air cylinders, the two groups of air cylinders are symmetrically arranged at the inner and outer sides of the other side of the track, the output ends of the two air cylinders in each group are fixed with a push plate, and the output stroke of the air cylinder located at the inner side of the track is greater than that of the air cylinder located at the outer side of the track.

[0013] Preferably, the upper side of each annular sand belt is provided with a strip-shaped pressing plate, the pressing plate is arranged along the length of the annular sand belt, one end of the pressing plate is obliquely upwardly raised, and a plurality of rolling balls are rotatably connected to the lower surface of the pressing plate and are pressed on the upper surface of the plastic plate.

[0014] Preferably, the lower end of the polishing motor is fixed with a sleeve, the sleeve is provided with a fan blade, and the fan blade is fixed to the lower end output end of the polishing motor; one side of the sleeve is communicated with a suction pipe, the end of the suction pipe extends below the annular sand belt, and the end of the suction pipe is fixed with a suction plate, the upper surface of the suction plate is concave, a plurality of suction holes are arranged on the concave surface, and the suction holes are communicated with the suction pipe.

[0015] The upper surface of the pressing plate is supported and fixed by a hollow pipe, the hollow pipe is communicated with an external air pump through a hose, and a plurality of air jet holes are arranged on the lower surface of the pressing plate, and the air jet direction of the air jet holes is towards the contact position of the annular sand belt and the plastic plate.

[0016] Preferably, the upper surface of each supporting disc is uniformly provided with a plurality of sliding grooves, a plurality of limiting grooves are vertically arranged in the groove of each sliding groove; a rectangular block is slidingly connected in the sliding groove, and a positioning rod is fixed to the upper end surface of the rectangular block; a gap slot is arranged in the lower half of the positioning rod, a clamping plate is arranged in the gap slot, the upper surface of the clamping plate is connected to the top surface in the gap slot through a spring, and the two sides of the clamping plate are vertically embedded in the limiting grooves.

[0017] Preferably, the lower half of each positioning rod is symmetrically provided with a notch, and a spring piece is arranged in the notch and protrudes outward.

[0018] Preferably, a plurality of pressure relief holes are formed in the outer ring of the upper end of the sleeve.

[0019] The present application has the advantages of:

[0020] 1. The plastic plate finishing machine can polish and remove the burr edges of the upper plate body of the stool, which can improve the removal effect of the burrs and ensure the appearance and safety of the product. Compared with manual removal, the efficiency is higher and the polishing is more precise. The upper plate body of the stool is collected and polished uniformly, reducing the labor of the material taking personnel, and the material taking personnel can focus on the material taking action, which can also improve the production safety.

[0021] 2. The output end of the air cylinder quickly and synchronously pushes the upper plate body of the stool away from the support disc. Since the output stroke of the air cylinder located on the inner side of the track is greater than that of the air cylinder located on the outer side of the track, the output end of the inner side air cylinder tilts outward to push out the upper plate body of the stool, pushing the upper plate body of the stool away from the plastic plate finishing machine, and then the output end of the air cylinder resets. The arrangement of the air cylinder facilitates the discharge of the upper plate body of the stool material and reduces manual operation. At the same time, the different stroke settings of the output end of the air cylinder make the upper plate body of the stool smoothly push away from the plastic plate finishing machine. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a first perspective view of the plastic plate finishing machine in the present application;

[0023] Figure 2 It is a second perspective view of the plastic plate finishing machine in the present application;

[0024] Figure 3 It is a perspective view of the conveying unit in the present application;

[0025] Figure 4 It is a top view of the plastic plate finishing machine in the present application;

[0026] Figure 5 It is a perspective view of the cooperation of the stabilizing block and the stabilizing ring in the present application;

[0027] Figure 6 It is a perspective view of the cooperation of the chain and the vertical rod in the present application;

[0028] Figure 7 It is a perspective view of the pressing plate in the present application;

[0029] Figure 8 It is a first perspective view of the polishing unit in the present application;

[0030] Figure 9 It is a second perspective view of the polishing unit in the present application;

[0031] Figure 10 It is a perspective view of the support disc in the present application;

[0032] Figure 11 Figure 1 is a perspective view of the positioning rod in the present application.

[0033] In the figure: 101, plastic plate; 1, track; 2, chain; 3, chain wheel; 4, vertical rod; 5, support disc; 6, positioning rod; 7, gear; 8, rack; 9, stabilizing ring; 10, groove; 11, stabilizing block; 12, polishing motor; 13, annular sand belt; 14, air cylinder; 15, push plate; 16, pressing plate; 17, ball; 18, sleeve; 19, fan blade; 20, adsorption tube; 21, adsorption plate; 22, hollow tube; 23, air jet hole; 24, sliding groove; 25, limiting groove; 26, rectangular block; 27, accommodation groove; 28, clamping plate; 29, notch; 30, spring piece; 31, pressure relief hole. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application will be further described below in conjunction with specific embodiments.

[0035] REFERENCE Figures 1-11 A plastic plate finishing machine, comprising a conveying unit for conveying plastic plates 101 to be polished, a stabilizing assembly arranged above the conveying unit for stabilizing the plastic plates 101 during polishing, a polishing unit arranged on one side of the conveying unit for polishing the edges of the plastic plates 101, and a discharging assembly arranged on the other side of the conveying unit for discharging the polished plastic plates 101.

[0036] The plastic plate finishing machine provided in the embodiment is used for polishing the edges of the plastic plates 101, i.e. polishing the edges of the upper plate bodies of the stools. Specifically, the upper plate bodies of the stools molded by injection are placed one by one on the conveying unit, the conveying unit conveys the upper plate bodies of the stools to the polishing unit, the polishing assembly polishes and grinds the edges of the upper plate bodies of the stools, the burrs and corners of the edges of the upper plate bodies of the stools are polished and removed, and at the same time, the upper plate bodies of the stools are constrained by the stabilizing assembly, so that the upper plate bodies of the stools can move stably along the conveying unit, which helps the polishing unit to polish the edges of the upper plate bodies of the stools accurately, and after polishing, the upper plate bodies of the stools are conveyed to the discharging assembly by the conveying unit, and the discharging assembly discharges the upper plate bodies of the stools.

[0037] The plastic plate finishing machine polishes and removes the burrs and corners of the edges of the upper plate bodies of the stools, which can improve the removal effect of the burrs and edges, ensure the appearance and safety of the products, and has higher efficiency and more accurate polishing compared with manual removal. In addition, the upper plate bodies of the stools are collected and polished uniformly, which reduces the labor of the material taking personnel, and the material taking personnel can focus on the material taking action, which also improves the production safety.

[0038] With reference to Figures 1-6 , the conveying unit comprises a runway-shaped track 1, a horizontally placed chain 2 is arranged in the track 1, sprocket wheels 3 are arranged at both ends of the inner ring of the track 1, and the sprocket wheels 3 engage the transmission chain 2; a plurality of pin shafts of the chain 2 are rotationally connected with vertical rods 4, upper ends of the vertical rods 4 are fixedly connected with support discs 5, a plurality of positioning rods 6 are arranged in a circumferential array on the support discs 5, a plastic plate 101 to be polished is placed on the support discs 5, and the positioning rods 6 are inserted into through holes of the plastic plate 101;

[0039] A gear 7 is fixedly connected to an outer ring of the vertical rod 4, the gear 7 engages a rack 8, and the rack 8 is located at an inner side position of one side of the track 1; the sprocket wheel 3 is connected with a speed reducer, the sprocket wheel 3 engages the transmission chain 2 to rotate slowly, so as to facilitate an operator to place the bench board body on the support disc 5 stably; the operator places the bench board body on the support disc 5 one by one, then the chain 2 drives the vertical rod 4 to move horizontally, the bench board body is moved to a polishing unit position, at the same time, the gear 7 on the vertical rod 4 engages the rack 8, so as to drive the gear 7 to rotate together with the vertical rod 4, the vertical rod 4 drives the bench board body to rotate through the support disc 5, at this time, the bench board body not only moves linearly, but also rotates itself, and the slow linear movement ensures the polishing and removing effect of burrs and corners on the bench board body.

[0040] With reference to Figures 1-6 , the stabilizing assembly comprises two inner and outer stabilizing rings 9, shapes of the two stabilizing rings 9 are matched with a shape of the track 1, and annular grooves 10 are arranged on outer surfaces of the inner stabilizing rings 9 and inner surfaces of the outer stabilizing rings 9; a stabilizing block 11 is fixedly connected to the vertical rod 4, the stabilizing block 11 is located above the gear 7, and the stabilizing block 11 is slidingly connected in the groove 10; the vertical rod 4 moves along a path of the track 1, an upper half part of the vertical rod 4 is constrained by the stabilizing assembly, the stability of the bench board body is improved, and the polishing unit can stably polish the bench board body; the vertical rod 4 moves horizontally along the path of the track 1, the stabilizing block 11 on the vertical rod 4 is slidingly connected in the groove 10, and the groove 10 constrains swinging of the stabilizing block 11, and also constrains swinging of the bench board body.

[0041] With reference to Figures 1-9The polishing unit comprises two groups of polishing motors 12 arranged at the inner and outer sides of one side of the track 1, and the output ends of the two polishing motors 12 in the same group are drivingly connected with a ring-shaped abrasive belt 13 which is attached to the edge of the plastic plate 101 for transmission; when the upper plate body of the stool moves to the polishing unit position, that is, the upper plate body of the stool moves between the two ring-shaped abrasive belts 13, the polishing motor 12 drives the ring-shaped abrasive belt 13 to rotate at high speed, and the burr edge on the edge of the upper plate body of the stool is polished and removed, and as for the surface polishing quality, the two ring-shaped abrasive belts 13 can be selected to have different particle sizes, for example, the ring-shaped abrasive belt 13 on the inner side of the track 1 can be selected to have larger particles, and the ring-shaped abrasive belt 13 on the outer side of the track 1 can be selected to have smaller particles, and in order to further improve the polishing quality, the length of the ring-shaped abrasive belt 13 with larger particles is smaller than that of the ring-shaped abrasive belt 13 with smaller particles, and in this way, when the upper plate body of the stool is separated from the polishing unit, the edge of the upper plate body of the stool is finally in contact with the ring-shaped abrasive belt 13 with smaller particles, so that the smoothness after polishing is ensured.

[0042] With reference to Figure 2 and Figure 4 The discharging assembly comprises two groups of air cylinders 14 which are symmetrically arranged at the inner and outer sides of the other side of the track 1, the output ends of the two air cylinders 14 in each group are fixedly connected with a push plate 15, and the output stroke of the air cylinder 14 located on the inner side of the track 1 is greater than that of the air cylinder 14 located on the outer side of the track 1; when the upper plate body of the stool which is polished is conveyed to the discharging assembly position, the output ends of the air cylinders 14 quickly and synchronously push the push plate 15 and the upper plate body of the stool, and the upper plate body of the stool is pushed away from the support disc 5, and since the output stroke of the air cylinder 14 located on the inner side of the track 1 is greater than that of the air cylinder 14 located on the outer side of the track 1, the output end of the inner side air cylinder 14 is inclined outward to push out the upper plate body of the stool, and the upper plate body of the stool is pushed away from the plastic plate finishing machine, and then the output ends of the air cylinders 14 are reset; the arrangement of the air cylinders 14 facilitates the discharging of the material of the upper plate body of the stool, reduces manual operation, and the different stroke amounts of the output ends of the air cylinders 14 make the upper plate body of the stool be able to be smoothly pushed away from the plastic plate finishing machine.

[0043] With reference to Figure 1 and Figure 7 A strip-shaped pressing plate 16 is arranged above each ring-shaped abrasive belt 13, the pressing plate 16 is arranged along the length of the ring-shaped abrasive belt 13, one end of the pressing plate 16 is obliquely upwardly raised, a plurality of rolling balls 17 are rotationally connected to the lower surface of the pressing plate 16, and the rolling balls 17 are pressed on the upper surface of the plastic plate 101; the arrangement of the pressing plate 16 stably presses the upper plate body of the stool which is conveyed to the polishing unit position on the support disc 5, so as to prevent the transmission of the ring-shaped abrasive belt 13 from driving the upper plate body of the stool to swing up and down and cause polishing failure.

[0044] With reference to Figure 1 , Figure 8 andFigure 9 The lower end of the polishing motor 12 is fixedly connected with a sleeve 18, the sleeve 18 is provided with a fan blade 19, the fan blade 19 is fixedly connected with the lower end output end of the polishing motor 12; one side of the sleeve 18 is communicated with a suction pipe 20, the end of the suction pipe 20 extends to the lower side of the annular sand belt 13, and the end of the suction pipe 20 is fixedly connected with a suction plate 21, the upper surface of the suction plate 21 is concave, and a plurality of suction holes are arranged in the concave surface, the suction holes are communicated with the suction pipe 20;

[0045] The upper surface of the pressing plate 16 is supported and fixed by a hollow pipe 22, the hollow pipe 22 is communicated with an external air pump through a hose, a plurality of air jet holes 23 are arranged on the lower surface of the pressing plate 16, the air jet direction of the air jet holes 23 is towards the contact position of the annular sand belt 13 and the plastic plate 101; the debris particles generated during polishing will pollute the working environment, therefore, the suction plate 21 and the suction pipe 20 which can adsorb the debris particles are arranged, the rotor of the polishing motor 12 has two output ends, one of the output ends drives the annular sand belt 13, and the other output end drives the fan blade 19 to rotate, the rotation of the fan blade 19 promotes the generation of negative pressure in the sleeve 18, the debris particles generated during polishing are sucked into the suction plate 21, and then are adsorbed into the sleeve 18 through the suction pipe 20, finally, the debris particles are discharged from the working environment along the sleeve 18, thereby providing a good working environment for the workers.

[0046] With reference to Figure 10 and Figure 11 The upper surface of each support disc 5 is uniformly provided with a plurality of sliding grooves 24, and a plurality of limiting grooves 25 are vertically arranged in the groove of each sliding groove 24; a rectangular block 26 is slidably connected in the sliding groove 24, and the upper end surface of the rectangular block 26 is fixedly connected with a positioning rod 6; a gap slot 27 is arranged in the lower half part of the positioning rod 6, a clamping plate 28 is arranged in the gap slot 27, the upper surface of the clamping plate 28 is connected with the top surface in the gap slot 27 through a spring, and the two sides of the clamping plate 28 are vertically embedded in the limiting groove 25; the sliding groove 24 is arranged to facilitate the adjustment of the diameter of the circle surrounded by the plurality of positioning rods 6, and should be adapted to the positioning of the upper plate body of the stool of different specifications; the specific adjustment process of the position of the positioning rod 6 is as follows: pull the clamping plate 28 upwards, the clamping plate 28 extrudes the spring upwards, and is separated from the limiting groove 25, then the positioning rod 6 is moved, so that the positioning rod 6 can surround a regular circle, then the clamping plate 28 is released, and the two ends of the clamping plate 28 are embedded in the limiting groove 25 again, so as to realize the fixation of the positioning rod 6.

[0047] With reference to Figure 10 and Figure 11 A recess 29 is symmetrically arranged in the lower half part of each positioning rod 6, and a spring piece 30 is arranged in the recess 29, and the spring piece 30 is protrudingly arranged outward from the recess 29; the positioning rod 6 is inserted into the through hole of the upper plate body of the stool, and the spring piece 30 extrudes the inner ring of the through hole, so that the upper plate body of the stool is in a relatively stable state during the whole process of feeding, polishing and discharging, so as to prevent the upper plate body of the stool from being skewed during transmission.

[0048] Referring to Figure 8 and Figure 9 , a plurality of pressure relief holes 31 are formed on the outer ring of the upper end of the sleeve 18; the pressure relief holes 31 are arranged so that air from the outside is sucked into the sleeve 18 without affecting the adsorption of the debris particles, and the adsorption of the outside air can flush away the debris particles adhering to the surface of the fan blade 19.

[0049] Working principle: the embodiment provides a plastic plate finishing machine, which processes and polishes the edges of the plastic plate 101, that is, processes and polishes the edges of the upper plate body of the stool; the specific operation is that the upper plate body of the stool after injection molding is placed on the conveying unit one by one, the conveying unit conveys the upper plate body of the stool to the polishing unit position, the polishing assembly polishes and polishes the edge of the upper plate body of the stool, and the burr edge of the upper plate body of the stool is polished and removed, and at the same time, the upper plate body of the stool is constrained by the stabilizing assembly, so that the upper plate body of the stool can move stably along the conveying unit, which helps the polishing unit to accurately polish the edge of the upper plate body of the stool, and after polishing is completed, the conveying unit is conveyed to the unloading assembly position, and the unloading assembly unloads the upper plate body of the stool;

[0050] The plastic plate finishing machine polishes and removes the burr edge of the upper plate body of the stool, which can improve the removal effect of the burr edge, ensure the appearance and safety of the product, has higher efficiency compared with manual removal, and polishes more finely; after the upper plate body of the stool is collected and polished uniformly, the labor of the material taking personnel is reduced, and the material taking personnel can focus on the material taking action, which can also improve the production safety;

[0051] The sprocket 3 is connected with the speed reducer, the sprocket 3 meshes with the transmission chain 2 to rotate slowly, which facilitates the operator to place the upper plate body of the stool stably on the support disc 5; the operator places the upper plate body of the stool on the support disc 5 one by one, then the chain 2 drives the vertical rod 4 to move horizontally, the upper plate body of the stool moves to the polishing unit position, and at the same time, the gear 7 on the vertical rod 4 meshes with the rack 8, which drives the gear 7 to rotate together with the vertical rod 4, and the vertical rod 4 drives the upper plate body of the stool to rotate through the support disc 5; at this time, the upper plate body of the stool not only moves in a straight line, but also rotates itself, slowly moves in a straight line, and ensures the polishing and removal effect of the burr edge of the upper plate body of the stool;

[0052] The vertical rod 4 moves along the path of the track 1, the upper half of the vertical rod 4 is constrained by the stabilizing assembly to improve the stability of the upper plate body of the stool, and the polishing unit can stably polish the upper plate body of the stool; the vertical rod 4 moves horizontally along the path of the track 1, the stabilizing block 11 on the vertical rod 4 is slidingly connected in the groove 10, and the groove 10 constrains the swing of the stabilizing block 11, which is also a swing constraint for the upper plate body of the stool;

[0053] When the plate body on the stool moves to the polishing unit position, that is, the plate body on the stool moves between the two annular abrasive belts 13, the polishing motor 12 drives the annular abrasive belts 13 to rotate at high speed, and the burr edges on the edges of the plate body on the stool are polished and removed. As for the surface polishing quality, the two annular abrasive belts 13 can be selected to have different particle sizes, for example, the annular abrasive belt 13 on the inner side of the track 1 can be selected to have a larger particle size, and the annular abrasive belt 13 on the outer side of the track 1 can be selected to have a smaller particle size. In order to further improve the polishing quality, the length of the abrasive belt with larger particles is smaller than the length of the abrasive belt with smaller particles. In this way, when the plate body on the stool is separated from the polishing unit, the edge of the plate body on the stool is finally in contact with the abrasive belt with smaller particles, which ensures the smoothness after polishing.

[0054] When the plate body on the stool is conveyed to the unloading assembly position, the output end of the air cylinder 14 quickly and synchronously pushes the plate 15 on the stool, and pushes the plate body on the stool away from the support disc 5. Since the output stroke of the air cylinder 14 located on the inner side of the track 1 is greater than the output stroke of the air cylinder 14 located on the outer side of the track 1, the output end of the inner side air cylinder 14 is inclined outward to push the plate body on the stool away from the plastic plate finishing machine, and then the output end of the air cylinder 14 is reset. The setting of the air cylinder 14 facilitates the unloading of the plate body on the stool, reduces manual operation, and at the same time, the different setting of the output stroke of the air cylinder 14 enables the plate body on the stool to be smoothly pushed away from the plastic plate finishing machine.

[0055] By setting the pressing plate 16, the pressing plate 16 stabilizes the plate body on the stool transmitted to the polishing unit position on the support disc 5, preventing the transmission of the annular abrasive belt 13 from driving the plate body on the stool to swing up and down, resulting in polishing failure. The debris particles generated by polishing will pollute the working environment. Therefore, the adsorption plate 21 and the adsorption pipe 20 which can adsorb debris particles are set. The rotor of the polishing motor 12 has two output ends, one of which drives the annular abrasive belt 13, and the other drives the fan blade 19 to rotate. The rotation of the fan blade 19 promotes the generation of negative pressure in the sleeve 18, and the debris particles generated by polishing are adsorbed into the adsorption plate 21, and then adsorbed into the sleeve 18 through the adsorption pipe 20, and finally discharged from the working environment along the sleeve 18, providing a good working environment for the workers.

[0056] The sliding groove 24 is arranged to facilitate the adjustment of the diameter of the circle surrounded by the plurality of positioning rods 6, which should be adapted to the positioning of the upper plate body of the bench of different specifications; the specific adjustment process of the position of the positioning rod 6 is as follows: pull the clamping plate 28 upwards, press the spring upwards, and then move the positioning rod 6 so that the positioning rod 6 can surround a regular circle, then release the clamping plate 28, and the two ends of the clamping plate 28 are embedded in the limiting groove 25 again to fix the positioning rod 6; the positioning rod 6 is inserted into the through hole of the upper plate body of the bench, and the spring piece 30 is pressed into the inner ring of the through hole, so that the upper plate body of the bench is in a relatively stable state during the whole process of feeding, polishing and discharging, so as to prevent the upper plate body of the bench from being skewed during transmission.

[0057] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A plastic sheet finishing machine characterized by: Including conveying unit, conveying unit is used for conveying the plastic plate (101) to be polished, the conveying unit is equipped with stabilizing assembly above, stabilizing assembly is used for stabilizing plastic plate (101) in polishing process;The conveying unit one side is equipped with polishing unit, and the polishing unit is used for polishing the edge of plastic plate (101);The conveying unit other side is equipped with blanking assembly;The blanking assembly is used for the plastic plate (101) of polishing completion blanking; The conveying unit includes runway-shaped track (1), and the track (1) is equipped with horizontally placed chain (2) inside, and the track (1) inner ring both ends are equipped with sprocket (3), and the sprocket (3) engages transmission chain (2);A plurality of pin shafts on the chain (2) are rotatably connected with vertical rods (4), and the upper end of the vertical rod (4) is fixedly connected with a support disc (5), and a plurality of positioning rods (6) are circularly arranged on the support disc (5), and the plastic plate (101) to be polished is placed on the support disc (5), and the positioning rod (6) is inserted into the through hole on the plastic plate (101). The outer circle of the vertical rod (4) is fixedly connected with a gear (7), and the gear (7) is engaged with a rack (8), and the rack (8) is located at the inner side of the track (1) on one side. The upper surface of each support disc (5) is uniformly provided with a plurality of sliding grooves (24), and a plurality of limiting grooves (25) are vertically provided in the slot of each sliding groove (24). The sliding groove (24) is slidably connected with a rectangular block (26), and the upper end surface of the rectangular block (26) is fixedly connected with the positioning rod (6). The lower half of the positioning rod (6) is provided with a recess (27), and the recess (27) is provided with a clamping plate (28), and the upper surface of the clamping plate (28) is connected to the top surface of the recess (27) through a spring. The clamping plate (28) is vertically embedded in the limiting groove (25) on both sides. The lower half of each positioning rod (6) is symmetrically provided with a notch (29), and the notch (29) is provided with a spring piece (30), and the spring piece (30) protrudes outward from the notch (29).

2. A plastic sheet finishing machine according to claim 1, characterized in that: The stabilizing assembly includes two inner and outer stabilizing rings (9), and the shapes of the two stabilizing rings (9) are matched with the shape of the track (1). The outer surface of the inner stabilizing ring (9) and the inner surface of the outer stabilizing ring (9) are provided with a recess (10) in the shape of a ring. The vertical rod (4) is fixedly connected with a stabilizing block (11), and the stabilizing block (11) is located above the gear (7) and is slidably connected in the recess (10).

3. The plastic sheet finishing machine according to claim 1, characterized in that: The polishing unit includes two groups of polishing motors (12), and the two groups of polishing motors (12) are arranged on the inner and outer sides of the track (1) on one side. The output ends of the two polishing motors (12) in the same group are drivingly connected with a ring-shaped sand belt (13), and the ring-shaped sand belt (13) is attached to the edge of the plastic plate (101) for transmission.

4. The plastic sheet finishing machine according to claim 2, wherein: The blanking assembly includes two groups of air cylinders (14), and the two groups of air cylinders (14) are symmetrically arranged on the inner and outer sides of the other side of the track (1). The output ends of the two air cylinders (14) in each group are fixedly connected with a push plate (15), and the output stroke of the air cylinder (14) located on the inner side of the track (1) is greater than that of the air cylinder (14) located on the outer side of the track (1).

5. The plastic sheet finishing machine according to claim 3, wherein: The upper side of each annular abrasive belt (13) is provided with a strip-shaped pressing plate (16) arranged along the length direction of the annular abrasive belt (13), one end of the pressing plate (16) is arranged in an upwardly inclined manner, and a plurality of rolling balls (17) are rotatably connected to the lower surface of the pressing plate (16) and are pressed against the upper surface of the plastic plate (101).

6. A plastic sheet finishing machine according to claim 5, characterized in that: A sleeve (18) is fixedly connected to the lower end of the polishing motor (12), the sleeve (18) is internally provided with a fan blade (19) fixedly connected to the lower end output end of the polishing motor (12); one side of the sleeve (18) is communicated with a suction pipe (20), the end of the suction pipe (20) extends below the annular abrasive belt (13), and the end of the suction pipe (20) is fixedly connected with a suction plate (21), the upper surface of the suction plate (21) is concave, and a plurality of suction holes are arranged on the concave surface, the suction holes are communicated with the suction pipe (20); The upper surface of the pressing plate (16) is supported and fixed by a hollow tube (22), the hollow tube (22) is communicated with an external air pump through a hose, and a plurality of air injection holes (23) are arranged on the lower surface of the pressing plate (16), the air injection direction of the air injection holes (23) is towards the contact position of the annular abrasive belt (13) and the plastic plate (101).

7. A plastic sheet finishing machine according to claim 6, characterized in that: A plurality of pressure relief holes (31) are arranged on the outer ring of the upper end of the sleeve (18).

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