阅读说明：本技术 一种pc拉杆箱壳体吸塑成型方法 (Plastic suction forming method for PC draw-bar box shell ) 是由 邹时新 张静敏 于 2021-01-06 设计创作，主要内容包括：本发明涉及一种PC拉杆箱壳体吸塑成型方法,其使用了一种PC拉杆箱壳体吸塑成型后抛光装置,该PC拉杆箱壳体吸塑成型后抛光装置包括底板、夹持机构和抛光打磨机构,所述的底板中部开设有矩形槽,矩形槽内通过滑动配合的方式安装有夹持机构,夹持机构两侧对称设置有抛光打磨机构,抛光打磨机构安装在底板上。本发明可以解决现有拉杆箱壳体打磨装置不能对拉杆箱稳定的夹持,而且拉杆箱打磨完成后夹板与拉杆箱拆分困难,不能同时对拉杆箱多个面打磨,打磨效率低,打磨头与壳体贴的过紧,打磨时容易使拉杆箱产生变形,影响拉杆箱的美观度,不能及时的将打磨下来的废屑清理的问题。(The invention relates to a plastic suction forming method of a PC (personal computer) draw-bar box shell, which uses a polishing device after the plastic suction forming of the PC draw-bar box shell, wherein the polishing device after the plastic suction forming of the PC draw-bar box shell comprises a bottom plate, a clamping mechanism and polishing and grinding mechanisms, a rectangular groove is formed in the middle of the bottom plate, the clamping mechanism is arranged in the rectangular groove in a sliding fit mode, the polishing and grinding mechanisms are symmetrically arranged on two sides of the clamping mechanism, and the polishing and grinding mechanisms are arranged on the bottom plate. The invention can solve the problems that the prior device for polishing the shell of the draw-bar box can not stably clamp the draw-bar box, the clamp plate and the draw-bar box are difficult to separate after the draw-bar box is polished, a plurality of surfaces of the draw-bar box can not be polished simultaneously, the polishing efficiency is low, the polishing head is too tight to be attached to the shell, the draw-bar box is easy to deform during polishing, the attractiveness of the draw-bar box is influenced, and polished scraps can not be cleaned in time.)

1. The utility model provides a PC draw-bar box casing plastic uptake forming method, its used a polishing device behind PC draw-bar box casing plastic uptake forming, this polishing device behind PC draw-bar box casing plastic uptake forming includes bottom plate (1), fixture (2) and polishing grinding machanism (3), its characterized in that: a rectangular groove is formed in the middle of the bottom plate (1), the clamping mechanisms (2) are installed in the rectangular groove in a sliding fit mode, polishing and grinding mechanisms (3) are symmetrically arranged on two sides of each clamping mechanism (2), and the polishing and grinding mechanisms (3) are installed on the bottom plate (1); wherein:

the clamping mechanism (2) comprises an electric push rod (21), a movable seat (22), sliding balls (23), telescopic rods (24), buffer springs (25), a clamping plate (26), clamping units (27), sucker units (28) and a pressing cylinder (29), the electric push rod (21) is installed in a rectangular groove in the middle of the bottom plate (1), the movable seat (22) is connected to the movable end of the electric push rod (21), the sliding balls (23) are evenly installed on the lower end face of the movable seat (22), the telescopic rods (24) are evenly arranged on the left end face of the movable seat (22), the buffer springs (25) are evenly arranged on the right end face of the movable seat (22), the clamping plate (26) is installed on the upper end face of the movable seat (22), the clamping units (27) are symmetrically installed on the clamping plate (26), and the sucker units (28) are arranged between the two clamping units (27), the sucking disc unit (28) is arranged on the clamping plate (26), a pressing cylinder (29) is arranged in the rectangular groove through a cylinder seat, and the movable end of the pressing cylinder (29) is connected with the clamping plate (26) through a flange;

the polishing and grinding mechanism (3) comprises a support frame (31), a driving unit (32), a grinding unit (33), a sliding plate (34), an Contraband trough plate (35), a rotating motor (36), an adjusting screw rod (37) and a limit nut (38), wherein the support frame (31) is installed in the middle of the bottom plate (1) in a sliding fit mode, the cross section of the support frame (31) is of a U-shaped structure with a downward opening, the driving unit (32) is installed in the middle of the support frame (31), the grinding unit (33) is installed on the driving unit (32), the grinding unit (33) is installed on the sliding plate (34), the sliding plate (34) is installed on the Contraband trough plate (35) in a sliding fit mode, the Contraband trough plate (35) is symmetrically installed on the upper end face of the bottom plate (1), the Contraband trough plate (35) is provided with the rotating motor (36) through a motor base, the adjusting screw rod (37) is connected to an output shaft, the adjusting screw rod (37) is arranged in the middle of the sliding plate (34) in a thread fit mode, and the other end of the adjusting screw rod (37) is provided with a limiting nut (38) for limiting the sliding plate (34);

the polishing device for the PC draw-bar box shell after plastic suction molding comprises the following steps of polishing and grinding the draw-bar box shell;

s1: heating and plastic uptake: heating the plastic sheet cut according to the size of the draw-bar box by a heating device, and carrying out plastic suction molding according to the shape of the draw-bar box after heating;

s2: excess material cutting: cutting redundant waste on the surface of the draw-bar box shell after plastic suction forming, so that the appearance attractiveness of the draw-bar box is improved;

s3: clamping the shell: placing the formed draw-bar box shell on a clamping plate (26), and clamping and fixing the draw-bar box shell through the matching of a clamping unit (27) and a sucking disc unit (28);

s4: shell surface polishing: after the draw-bar box is fixed, the protrusions and burrs on the surface of the draw-bar box after plastic suction molding are polished, polished and leveled by the polishing and polishing mechanism (3), so that the smoothness, fashion and attractiveness of the draw-bar box shell are improved;

s5: assembling and inspecting: the polished shell is taken down from the clamping plate (26), the universal wheels and the pull rods are assembled at the corresponding positions of the shell, and qualified products are collected and managed uniformly through quality inspection of plastic uptake process inspection standards and inspection specifications.

2. The plastic suction molding method for the PC draw-bar box shell according to claim 1, wherein: the clamping unit (27) comprises a T-shaped rod (271), a clamping spring (272), an arc-shaped clamping plate (273) and a clamping pad (274), grooves are symmetrically formed in the clamping plate (26), the T-shaped rod (271) is installed in the grooves in a sliding fit mode, the clamping spring (272) is sleeved on the T-shaped rod (271), the arc-shaped clamping plate (273) is installed at the end of the T-shaped rod (271), and the clamping pad (274) is arranged on the arc-shaped clamping plate (273).

3. The plastic suction molding method for the PC draw-bar box shell according to claim 1, wherein: the sucking disc unit (28) comprises a rubber sucking disc (281), an air bag (282), an air injection rod (283), a trapezoidal sliding block (284), a convex block (285), a pressing plate (286), a clamping block (287) and a return spring (288), grip block (26) on be provided with rubber suction cup (281), rubber suction cup (281) intussuseption is filled with gasbag (282), be provided with inflatable opening on gasbag (282), inflatable opening installs gas injection pole (283) through sliding fit's mode in, gas injection pole (283) lower extreme is installed on trapezoidal slider (284), the symmetry is provided with the ball on trapezoidal slider (284) inclined plane, right side ball and lug (285) roll connection, lug (285) are installed on grip block (26), left side ball and clamp plate (286) roll connection, clamp plate (286) middle part is provided with joint piece (287), reset spring (288) are installed to joint piece (287) bilateral symmetry.

4. The plastic suction forming method for the PC draw-bar box shell according to claim 1, wherein the method comprises the following steps: drive unit (32) include driving motor (321), transmission shaft (322), drive sprocket (323), driven sprocket (324), chain (325) and polish set (326), support frame (31) middle part install driving motor (321) through the motor cabinet, install transmission shaft (322) through the shaft coupling on the output shaft of driving motor (321), drive sprocket (323) is installed through the spline in transmission shaft (322) middle part, drive sprocket (323) bilateral symmetry is provided with driven sprocket (324), is connected through chain (325) between driven sprocket (324) and drive sprocket (323), transmission shaft (322) lower extreme install and polish set (326), polish set (326) down evenly to be provided with a plurality of archs of polishing on the terminal surface.

5. The plastic suction forming method for the PC draw-bar box shell according to claim 1, wherein the method comprises the following steps: polishing unit (33) including transfer line (331), the frame (332) of polishing, the roller (333) of polishing, pole (334) of polishing, expanding spring (335), polish (336) and cleaning brush (337), drive unit (32) on the symmetry install transfer line (331), transfer line (331) lower extreme passes through the bearing and installs on frame (332) of polishing, transfer line (331) mid-mounting has the roller (333) of polishing, polish roller (333) right side and evenly seted up the square groove of polishing, polish rod (334) is installed through sliding fit's mode in the square groove of polishing, polish rod (334) left end and be connected with expanding spring (335), polish rod (334) right-hand member and install polish head (336), polish roller (333) left side outer wall on evenly be provided with cleaning brush (337).

6. The plastic suction forming method for the PC draw-bar box shell according to claim 1, wherein the method comprises the following steps: the cross section of the clamping plate (26) is of an L-shaped structure, the number of the clamping plates (26) is two, the clamping plates are symmetrically arranged on the upper end face of the movable seat (22), the front side clamping plate (26) is fixedly arranged on the movable seat (22), and the rear side clamping plate (26) is arranged on the movable seat (22) in a sliding fit mode.

Technical Field

The invention relates to the technical field of draw-bar boxes, in particular to a plastic suction forming method for a PC draw-bar box shell.

Background

A trolley case refers to a luggage case having a trolley and rollers. The draw-bar box can be conveniently dragged during walking, the burden is greatly reduced, and the draw-bar box is convenient to use and widely used. With the improvement of society and the improvement of living standard of people, the number of people who travel is more and more, and draw-bar box has become the necessary luggage of trip now. The draw-bar box mainly takes a cloth box, an ABS hard box, a leather box, a PC and the like as main materials, and the usability of the draw-bar box is divided into three categories, namely a directional wheel, a universal wheel and a latest detachable universal wheel draw-bar box. The PC accompanying draw-bar box is mainly manufactured by adopting a plastic-suction forming process, and the plastic-suction forming process flow of the draw-bar box can be divided into flows of plastic sheet cutting, sheet fixing and heating, plastic-suction forming, waste material cutting, shell surface polishing, assembly inspection and the like. Because people also can pursue the fashion nature and the aesthetic property of suitcase outward appearance when pursuing practicality now, the draw-bar box surface produces unevenness's plastics arch and burr easily behind the plastic uptake shaping, influences the aesthetic property of suitcase, consequently need polish the draw-bar box shell face after the plastic uptake shaping to improve the smoothness of draw-bar box shell face, has proposed a PC draw-bar box casing plastic uptake shaping method and has specifically related to a polishing device behind the plastic uptake shaping of PC draw-bar box casing and polish the draw-bar box casing.

At present, to current draw-bar box casing grinding device, there is following defect: 1. the conventional trolley case shell polishing device cannot stably clamp the trolley case, and the clamping plate and the trolley case are difficult to split after the trolley case is polished, so that the collection efficiency of the trolley case is influenced; 2. the existing draw-bar box shell grinding device cannot grind a plurality of surfaces of the draw-bar box simultaneously, is low in grinding efficiency, and due to the fact that a grinding head is too tight to be attached to the shell, the draw-bar box is easy to deform during grinding, the attractiveness of the draw-bar box is affected, and waste scraps which cannot be ground can not be cleaned timely.

Disclosure of Invention

Technical problem to be solved

The invention can solve the problems that the prior device for polishing the shell of the draw-bar box can not stably clamp the draw-bar box, the split of the clamp plate and the draw-bar box after the draw-bar box is polished is difficult, and the collection efficiency of the draw-bar box is influenced, and the prior device for polishing the shell of the draw-bar box can not simultaneously polish a plurality of surfaces of the draw-bar box, has low polishing efficiency, has too tight adhesion between a polishing head and the shell, is easy to deform the draw-bar box during polishing, influences the attractiveness of the draw-bar box, and can not timely clean polished scraps.

(II) technical scheme

In order to achieve the purpose, the invention adopts the following technical scheme that the polishing device for the plastic suction forming of the PC draw-bar box shell comprises a bottom plate, a clamping mechanism and polishing and grinding mechanisms, wherein the rectangular groove is formed in the middle of the bottom plate, the clamping mechanism is arranged in the rectangular groove in a sliding fit mode, the polishing and grinding mechanisms are symmetrically arranged on two sides of the clamping mechanism, and the polishing and grinding mechanisms are arranged on the bottom plate.

The clamping mechanism comprises an electric push rod, a movable seat, sliding balls, a telescopic rod, a buffer spring, a clamping plate, clamping units, a sucker unit and a compression cylinder, the electric push rod is installed in a rectangular groove in the middle of the bottom plate, the movable end of the electric push rod is connected with the movable seat, the sliding balls are evenly installed on the lower end face of the movable seat, the telescopic rod is evenly arranged on the left end face of the movable seat, the buffer spring is evenly arranged on the right end face of the movable seat, the clamping plate is installed on the upper end face of the movable seat, the clamping units are symmetrically installed on the clamping plate, the sucker unit is arranged between the two clamping units and installed on the clamping plate, the compression cylinder is installed in the rectangular groove through a cylinder seat, and the movable end of the compression cylinder is connected with.

Polishing grinding machanism include support frame, drive unit, polish unit, sliding plate, Contraband frid, rotate motor, accommodate the lead screw and stop nut, bottom plate middle part install the support frame through sliding fit's mode, the support frame cross-section is opening decurrent U type structure, the support frame mid-mounting has drive unit, the last unit of polishing of installing of drive unit, the unit of polishing is installed on the sliding plate, the sliding plate is installed on Contraband frid through sliding fit's mode, Contraband frid symmetry is installed on the bottom plate up end, Contraband frid on install through the motor cabinet and rotate the motor, there is accommodate the lead screw through splined connection on the output shaft of rotation motor, accommodate the lead screw passes through screw-thread fit's mode and installs at the sliding plate middle part, the accommodate the lead screw other end is installed and is used for the.

The polishing device for the PC draw-bar box shell after plastic suction molding comprises the following steps of polishing and grinding the draw-bar box shell;

s1: heating the sheet: heating the plastic sheet cut according to the size of the draw-bar box by a heating device, and carrying out plastic suction molding according to the shape of the draw-bar box after heating;

s2: excess material cutting: cutting redundant waste on the surface of the draw-bar box shell after plastic suction forming, so that the appearance attractiveness of the draw-bar box is improved;

s3: clamping the shell: placing the formed draw-bar box shell on a clamping plate, and clamping and fixing the draw-bar box shell through the matching of a clamping unit and a sucking disc unit;

s4: shell surface polishing: after the draw-bar box is fixed, the protrusions and burrs on the surface of the draw-bar box after plastic suction molding are polished, polished and leveled by a polishing and grinding mechanism, so that the smoothness, fashion and attractiveness of the draw-bar box shell are improved;

s5: assembling and inspecting: and taking down the polished shell from the clamping plate, assembling the universal wheel and the pull rod at the corresponding position of the shell, and then performing quality inspection of a plastic uptake process inspection standard and an inspection standard to uniformly collect and manage qualified products.

As a preferred technical scheme, the clamping unit comprises a T-shaped rod, a clamping spring, an arc-shaped clamping plate and a clamping pad, wherein grooves are symmetrically formed in the clamping plate, the T-shaped rod is installed in the grooves in a sliding fit mode, the clamping spring is sleeved on the T-shaped rod, the arc-shaped clamping plate is installed at the end part of the T-shaped rod, and the clamping pad is arranged on the arc-shaped clamping plate.

As a preferred technical scheme of the invention, the sucker unit comprises a rubber sucker, an air bag, an air injection rod, a trapezoidal slider, a convex block, a pressing plate, a clamping block and a return spring, the rubber sucker is arranged on the clamping plate, the air bag is filled in the rubber sucker, an air inflation opening is formed in the air bag, the air injection rod is arranged in the air inflation opening in a sliding fit mode, the lower end of the air injection rod is arranged on the trapezoidal slider, balls are symmetrically arranged on the inclined surface of the trapezoidal slider, the right balls are connected with the convex block in a rolling mode, the convex block is arranged on the clamping plate, the left balls are connected with the pressing plate in a rolling mode, the clamping block is arranged in the middle of the pressing plate.

As a preferred technical scheme of the invention, the driving unit comprises a driving motor, a transmission shaft, a transmission chain wheel, a driven chain wheel, a chain and a polishing disc, the driving motor is installed in the middle of the supporting frame through a motor base, the transmission shaft is installed on an output shaft of the driving motor through a coupler, the transmission chain wheel is installed in the middle of the transmission shaft through a spline, the driven chain wheels are symmetrically arranged on two sides of the transmission chain wheel, the driven chain wheel is connected with the transmission chain wheel through the chain, the polishing disc is installed at the lower end of the transmission shaft, and a plurality of polishing bulges are uniformly arranged on the lower end surface of.

According to a preferred technical scheme, the polishing unit comprises a transmission rod, a polishing frame, a polishing roller, a polishing rod, a telescopic spring, a polishing head and a cleaning brush, wherein the transmission rod is installed on the driven chain wheel through a spline, the lower end of the transmission rod is installed on the polishing frame through a bearing, the polishing roller is installed in the middle of the transmission rod, polishing square grooves are evenly formed in the right side of the polishing roller, the polishing rod is installed in each polishing square groove in a sliding fit mode, the telescopic spring is connected to the left end of the polishing rod, the polishing head is installed at the right end of the polishing rod, and the cleaning brush is evenly arranged on the outer wall of the left side of the polishing roller.

As a preferred technical scheme of the invention, the cross section of each clamping plate is of an L-shaped structure, the two clamping plates are symmetrically arranged on the upper end surface of the movable seat, the front clamping plate is fixedly arranged on the movable seat, and the rear clamping plate is arranged on the movable seat in a sliding fit manner.

(III) advantageous effects

1. The invention provides a plastic suction forming method for a PC draw-bar box shell, which can solve the problems that the existing draw-bar box shell polishing device cannot stably clamp a draw-bar box, a clamp plate and the draw-bar box are difficult to separate after the draw-bar box is polished, and the collection efficiency of the draw-bar box is influenced, and can also solve the problems that the existing draw-bar box shell polishing device cannot polish a plurality of surfaces of the draw-bar box simultaneously, the polishing efficiency is low, a polishing head is too tight to be attached to the shell, the draw-bar box is easy to deform during polishing, the attractiveness of the draw-bar box is influenced, and polished scraps cannot be cleaned in time.

2. According to the plastic suction forming method for the PC draw-bar box shell, the clamping units and the sucker units are matched to stably clamp draw-bar boxes with different sizes, so that the applicability of the device is improved, the draw-bar boxes are prevented from shaking relatively during grinding, the polishing and grinding efficiency is improved, and after the draw-bar boxes are ground, the draw-bar boxes can be quickly separated from the arc-shaped clamping plates only by inward contraction of the pressing air cylinders, and the collection and inspection efficiency of the draw-bar boxes is improved.

3. According to the plastic suction molding method for the PC draw-bar box shell, the driving unit and the grinding unit are matched to simultaneously polish and grind a plurality of end faces of the draw-bar box, the cleaning brush can timely clean waste scraps ground off from the shell face of the draw-bar box, so that the smooth effect of the shell face of the draw-bar box is favorably maintained, the grinding efficiency and the grinding effect can be improved, the grinding unit has a buffering effect when the draw-bar box is polished and ground, the situation that the draw-bar box is deformed due to the fact that the grinding head is attached to the shell face of the draw-bar box too tightly can be prevented, the protection of the draw-bar box is increased, and the attractiveness of the polished draw-bar box is favorably improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a flow chart of the work of the plastic suction molding method for the PC draw-bar box shell provided by the invention;

FIG. 2 is a schematic perspective view of a polishing device after plastic-suction forming of a PC draw-bar box housing according to the present invention;

FIG. 3 is a schematic diagram of a transverse cross-sectional structure of a polishing device after plastic-suction forming of a PC draw-bar box shell provided by the invention;

FIG. 4 is an enlarged schematic view of the invention at A in FIG. 3;

FIG. 5 is a schematic longitudinal sectional view of the clamping mechanism of the present invention;

FIG. 6 is an enlarged view of the invention at B of FIG. 5;

FIG. 7 is a schematic view of a horizontal section structure of a polishing device after plastic-suction forming of a PC draw-bar box shell provided by the invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 7, a method for plastic suction molding of a PC draw-bar box shell uses a polishing device after the plastic suction molding of the PC draw-bar box shell, the polishing device after the plastic suction molding of the PC draw-bar box shell comprises a bottom plate 1, a clamping mechanism 2 and a polishing and grinding mechanism 3, a rectangular groove is formed in the middle of the bottom plate 1, the clamping mechanism 2 is installed in the rectangular groove in a sliding fit mode, the polishing and grinding mechanisms 3 are symmetrically arranged on two sides of the clamping mechanism 2, and the polishing and grinding mechanisms 3 are installed on the bottom plate 1.

The clamping mechanism 2 comprises an electric push rod 21, a movable seat 22, a sliding ball 23, an expansion link 24, a buffer spring 25, a clamping plate 26, a clamping unit 27, a suction disc unit 28 and a pressing cylinder 29, the electric push rod 21 is installed in a rectangular groove in the middle of the bottom plate 1, the movable end of the electric push rod 21 is connected with the movable seat 22, the sliding ball 23 is evenly installed on the lower end surface of the movable seat 22, the expansion link 24 is evenly arranged on the left end surface of the movable seat 22, the buffer spring 25 is evenly arranged on the right end surface of the movable seat 22, the clamping plate 26 is installed on the upper end surface of the movable seat 22, the clamping units 27 are symmetrically installed on the clamping plate 26, the suction disc unit 28 is arranged between the two clamping units 27, the suction disc unit 28 is installed on the clamping plate 26, the pressing cylinder 29 is installed in the rectangular groove through a cylinder seat, and the movable end, the cross section of the clamping plate 26 is of an L-shaped structure, the number of the clamping plates 26 is two, the clamping plates are symmetrically arranged on the upper end surface of the movable seat 22, the front side clamping plate 26 is fixedly arranged on the movable seat 22, the rear side clamping plate 26 is arranged on the movable seat 22 in a sliding fit mode, when the device works in detail, the draw-bar box after plastic suction molding is manually placed on the clamping plates 26, the rear side clamping plate 26 is pushed forwards through the pressing air cylinder 29 to enable the two clamping plates 26 to be attached together, so that the draw-bar box with the width incapable of being clamped can be clamped, the applicability of the device can be improved, the draw-bar box can be stably clamped through the clamping unit 27 and the sucking disc unit 28, relative sliding can be caused when the draw-bar box is ground, the grinding efficiency of the draw-bar box is influenced, when the draw-bar box is stably clamped, the movable seat 22 can be pushed forwards and backwards through, efficiency of polishing is improved, sliding seat 22 plays the effect that supports clamping plate 26, and slip ball 23 can reduce the frictional force between sliding seat 22 and the bottom plate 1, is favorable to sliding that sliding seat 22 can be better, and telescopic link 24 and buffer spring 25 can avoid when polishing the draw-bar box shell surface with polishing unit 33 cooperation, and the condition that polishing head 336 and casing laminating tension make the draw-bar box warp appears, is favorable to increasing the protection to the draw-bar box.

The clamping unit 27 comprises a T-shaped rod 271, a clamping spring 272, an arc-shaped clamping plate 273 and a clamping pad 274, wherein grooves are symmetrically formed in the clamping plates 26, the T-shaped rod 271 is installed in the grooves in a sliding fit mode, the clamping spring 272 is sleeved on the T-shaped rod 271, the arc-shaped clamping plate 273 is installed at the end part of the T-shaped rod 271, the clamping pad 274 is arranged on the arc-shaped clamping plate 273, when the clamping unit works specifically, the T-shaped rod 271 is symmetrically installed on the clamping plates 26, when the rear clamping plate 26 slides forwards under the action of the pressing cylinder 29, the distance between the two clamping plates 26 is reduced until the arc-shaped clamping plate 273 is contacted with the draw-bar box, the clamping pad 274 plays a role in protecting the draw-bar box, so that the purpose of clamping the draw bar is realized, at the moment, the clamping spring 272 is in a compressed state, after the draw-bar box is polished, the draw-bar box only, the arc-shaped clamping plate 273 can be quickly separated from the draw-bar box, and the collection and inspection efficiency of the draw-bar box is improved.

The sucking disc unit 28 comprises a rubber sucking disc 281, an air bag 282, an air injection rod 283, a trapezoidal sliding block 284, a convex block 285, a pressing plate 286, a clamping block 287 and a return spring 288, the rubber sucking disc 281 is arranged on the clamping plate 26, the air bag 282 is filled in the rubber sucking disc 281, an air inflation opening is arranged on the air bag 282, the air injection rod 283 is arranged in the air inflation opening in a sliding fit mode, the lower end of the air injection rod 283 is arranged on the trapezoidal sliding block 284, balls are symmetrically arranged on the inclined plane of the trapezoidal sliding block 284, right-side balls are in rolling connection with the convex block 285, the convex block 285 is arranged on the clamping plate 26, left-side balls are in rolling connection with the pressing plate 286, the clamping block 287 is arranged in the middle of the pressing plate 286, the return springs 288 are symmetrically arranged on two sides of the clamping block 287, during specific work, under the effect of the pressing cylinder 29, the, and then can make the trapezoidal slider 284 move upwards, the gas injection pole 283 promotes upwards and can discharge the gas in the gasbag 282, after the gas discharge, the rubber suction cup 281 can contract inwards after losing the support of gasbag 282, and then can suck the draw-bar box placed on the rubber suction cup 281 tightly from the bottom, so as to realize the purpose of stably clamping the draw-bar box with the cooperation of the arc clamping plate 273, when the lug 285 moves upwards, the pressing plate 286 can be extruded to move forwards, and then the clamping block 287 can be clamped on the front clamping plate 26, and then the purpose of attaching the two clamping plates 26 together can be realized, which is beneficial to increasing the stable effect of clamping the draw-bar box, the reset spring 288 plays the role of providing the reset spring force for the pressing plate 286, after the polishing work is finished, the two clamping plates 26 can be rapidly detached, which is beneficial to rapidly separating the draw-bar box from the arc clamping plate 273, is favorable for improving the collection efficiency of the draw-bar box.

The polishing and grinding mechanism 3 comprises a support frame 31, a driving unit 32, a grinding unit 33, a sliding plate 34, an Contraband trough plate 35, a rotating motor 36, an adjusting screw 37 and a limit nut 38, wherein the support frame 31 is installed in the middle of the bottom plate 1 in a sliding fit manner, the cross section of the support frame 31 is of a U-shaped structure with a downward opening, the driving unit 32 is installed in the middle of the support frame 31, the grinding unit 33 is installed on the driving unit 32, the grinding unit 33 is installed on the sliding plate 34, the sliding plate 34 is installed on the Contraband trough plate 35 in a sliding fit manner, the Contraband trough plate 35 is symmetrically installed on the upper end surface of the bottom plate 1, the Contraband trough plate 35 is provided with the rotating motor 36 through a motor base, the output shaft of the rotating motor 36 is connected with the adjusting screw 37 through a spline, the adjusting screw 37 is installed in the middle of the sliding plate 34 in a thread fit manner, during operation, support frame 31 plays the effect of support, drive unit 32 plays and provides the effect of drive power for the unit of polishing, can polish to the draw-bar box up end simultaneously, the unit 33 of polishing can polish to the draw-bar box left and right sides terminal surface simultaneously, drive unit 32 can realize the purpose of polishing simultaneously to a plurality of terminal surfaces of draw-bar box with the unit 33 cooperation of polishing, be favorable to improving the efficiency of polishing of draw-bar box, sliding plate 34 plays the effect of polishing unit 33 support, it can make sliding plate 34 slide in Contraband frid 35 to drive accommodate the lead screw 37 through rotating motor 36 and rotate, and then can make polishing unit 34 slide around, can increase the area of polishing, be favorable to improving the efficiency of polishing, stop nut 38 plays the spacing effect to sliding plate 34, can avoid sliding plate 34 to break away from the gliding condition appearance of Contraband frid 35.

The driving unit 32 comprises a driving motor 321, a transmission shaft 322, a transmission chain wheel 323, a driven chain wheel 324, a chain 325 and a polishing disc 326, the driving motor 321 is installed in the middle of the supporting frame 31 through a motor base, the transmission shaft 322 is installed on an output shaft of the driving motor 321 through a coupler, the transmission chain wheel 323 is installed in the middle of the transmission shaft 322 through a spline, the driven chain wheels 324 are symmetrically arranged on two sides of the transmission chain wheel 323, the driven chain wheels 324 are connected with the transmission chain wheel 323 through the chain 325, the polishing disc 326 is installed at the lower end of the transmission shaft 322, a plurality of polishing bulges are uniformly arranged on the lower end face of the polishing disc 326, the polishing unit 33 comprises a transmission rod 331, a polishing frame 332, a polishing roller 333, a polishing rod 334, a telescopic spring 335, a polishing head 336 and a cleaning brush 337, the transmission rod 331 is installed on the driven chain wheel 324 through, the middle part of the transmission rod 331 is provided with a grinding roller 333, the right side of the grinding roller 333 is uniformly provided with a grinding square groove, the grinding rod 334 is arranged in the grinding square groove in a sliding fit mode, the left end of the grinding rod 334 is connected with an expansion spring 335, the right end of the grinding rod 334 is provided with a grinding head 336, the outer wall of the left side of the grinding roller 333 is uniformly provided with a cleaning brush 337, when the device works specifically, the driving motor 321 drives the transmission shaft 322 to rotate, the driving chain wheel 323 and the grinding disc 326 which are arranged on the transmission shaft 322 can be driven to rotate, the driven chain wheel 324 is driven to rotate under the action of chain transmission, the driven chain wheel 324 is connected with the transmission rod 331 and can drive the transmission rod 331 to rotate, further, the purpose of simultaneously rotating the grinding disc 326 and the grinding roller 333 can be realized, the grinding frame 332 plays a role of supporting the grinding roller 333, the purpose of simultaneously grinding, the polishing head 336 and the cleaning brush 337 can be intermittently in contact with the surface of the draw-bar box shell when the polishing roller 333 rotates, the polishing head 336 and the surface of the draw-bar box shell are in contact with plastics and burrs which are uneven during plastic suction molding, the cleaning brush 337 and the surface of the draw-bar box shell are in contact with each other, the polished scraps can be timely cleaned away from the surface of the draw-bar box shell, the smooth effect of the surface of the draw-bar box shell is favorably maintained, the polishing efficiency and the polishing effect can be improved simultaneously, the expansion spring 335 and the polishing rod 334 are matched to prevent the polishing head 337 and the shell from being excessively tightly contacted to extrude and deform the shell, and the protection of the draw-bar box and the attractiveness of the polished draw-bar box are favorably improved.

The polishing device for the housing of the PC draw-bar box after plastic suction molding comprises the following steps of polishing and grinding the housing of the draw-bar box;

s1: heating the sheet: heating the plastic sheet cut according to the size of the draw-bar box by a heating device, and carrying out plastic suction molding according to the shape of the draw-bar box after heating;

s2: excess material cutting: cutting redundant waste on the surface of the draw-bar box shell after plastic suction forming, so that the appearance attractiveness of the draw-bar box is improved;

s3: clamping the shell: placing the formed draw-bar box shell on a clamping plate 26, and clamping and fixing the draw-bar box shell through the matching of a clamping unit 27 and a sucking disc unit 28;

s4: shell surface polishing: after the draw-bar box is fixed, the protrusions and burrs on the surface of the draw-bar box after plastic suction molding are polished, polished and leveled by the polishing and grinding mechanism 3, so that the smoothness, fashion and attractiveness of the draw-bar box shell are improved;

s5: assembling and inspecting: the polished shell is taken down from the clamping plate 26, the universal wheels and the pull rods are assembled at the corresponding positions of the shell, and qualified products are collected and managed uniformly through quality inspection of plastic uptake process inspection standards and inspection specifications.

Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described in detail herein. Such variations do not affect the essence of the present invention and are not described herein.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; it will be understood by those skilled in the art that various changes and modifications may be made, or equivalents may be modified, without departing from the spirit of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.