Feeding and discharging equipment of automatic carrier roller coating line

Abstract

The utility model belongs to the technical field of carrier roller finished product coating, and particularly provides a feeding and discharging device of an automatic carrier roller coating line, which comprises a lifting platform, a lifting appliance rotating platform, a plurality of clamps and a lifting shifting fork mechanism, the lifting appliance rotating platform is laid on the top of a workshop, and the clamps are hung below the lifting appliance rotating platform. The lifting shifting fork mechanism is assembled on an external front-back telescopic mechanism, the telescopic mechanism is connected with the lifting mechanism, and the clamp is an internal expansion clamping type clamping jaw or an external clamping type clamping jaw. Based on the lifting platform and the lifting appliance rotating platform, the internal expansion clamping type clamping jaw and the external clamping type clamping jaw are arranged, a user can select the corresponding clamping jaw according to a coating product, various requirements for automatic workpiece loading and unloading of a carrier roller coating production line can be met, manual workpiece loading and unloading can be replaced, the requirement for the control precision of a lifting mechanism is low, and the working efficiency is high. And the whole machine cost of the automatic carrier roller coating line is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of supporting roller finished product coating technology, and particularly provide a kind of feeding and discharging equipment of supporting roller automation coating line. BACKGROUND

[0002] Supporting roller is the routine component on the equipment such as conveying belt, and in the production flow of supporting roller, need to be coated after completing shaping.Currently, the automation degree of supporting roller automation coating line appeared on market is limited, carrying and spraying equipment are all automated, but the feeding and discharging link of supporting roller is still mainly manual.

[0003] The clamping mechanism of feeding and discharging device adopts nut cooperation process thread or perforation hanging mode, and the efficiency of feeding and discharging is relatively low, especially when processing heavy supporting roller, there is still security risk, and it is difficult to complete feeding and discharging work in conjunction with automatic feeding and discharging platform.

[0004] Therefore, in order to meet market needs, feeding and discharging gripper tool capable of realizing the above working condition is needed. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a kind of feeding and discharging equipment of supporting roller automation coating line, including lifting platform, sling wheel rotation platform, clamp and lifting fork mechanism, sling wheel rotation platform is laid on the top of workshop, sling wheel rotation platform is hung with multiple clamps below, lifting fork mechanism is assembled on external telescopic mechanism, external telescopic mechanism is connected with external lifting mechanism, that is, lifting fork mechanism can complete up-down lifting action and front-back telescopic action under the drive of external telescopic mechanism and external lifting mechanism, the lifting range of lifting fork mechanism is matched with the hanging height of clamp, the middle section of sling wheel rotation platform is the assembly interval of coating equipment, lifting platform is provided below both ends of sling wheel rotation platform, the outside of clamp is all sleeved with protective sleeve structure;

[0006] During feeding and discharging process, supporting roller is placed on lifting platform;

[0007] The upper surface of lifting platform is provided with multiple supporting roller positioning seats, and supporting roller is inserted into supporting roller positioning seat.

[0008] The clamp is inner-rising clamping type gripper or outer clamping type gripper.

[0009] Further, the lifting fork mechanism is composed of connecting seat and fork head, the connecting seat is "Y" shaped, the number of fork head is two, the longitudinal section of fork head is "U" type, two fork heads are symmetrically distributed on the end face of connecting seat, and the openings of two fork heads are oppositely arranged.

[0010] Further, the clamp is inner-rising clamping type gripper, and is used for clamping shaftless supporting roller.

[0011] The inner expanding clamping jaw comprises a clamping component, a core rod, an adjusting piece and a first hinged seat, the first hinged seat is annular, a plurality of clamping components are arranged concentrically and uniformly, and the top ends of the plurality of clamping components are hinged in the first hinged seat, the core rod penetrates the first hinged seat axially, and the core rod is located between the plurality of clamping components, and the top end of the core rod is provided with a first hook;

[0012] The clamping component is a rod-shaped piece with a fan-shaped cross section;

[0013] The clamping component comprises a claw tip, a conical section and a hinged section, the claw tip and the hinged section are arranged at the lower end and the upper end of the conical section respectively;

[0014] An arc-shaped groove is axially arranged on the side wall of the clamping component, a plurality of arc-shaped grooves are arranged concentrically and uniformly after splicing, and a central groove can be formed after splicing, the size and shape of the central groove and the core rod are matched with each other, and the lower half of the central groove is a variable-diameter groove;

[0015] The lower end of the core rod is provided with a spindle;

[0016] The inner diameter of the variable-diameter groove matches the outer diameter of the top end of the spindle;

[0017] When a plurality of clamping components are rotated to the smallest opening angle, the inner diameter of the top end of the variable-diameter groove is smaller than the maximum outer diameter of the spindle, so that the plurality of clamping components can pass through the perforation on the end surface of the shaftless carrier roller;

[0018] The inner side of the lower end surface of the clamping component is chamfered, so that the spindle can be smoothly inserted between the plurality of clamping components.

[0019] Further, the core rod comprises a main rod body and a variable-diameter rod, the radius of the main rod body matches the inner diameter of the central groove, and the radius of the variable-diameter rod matches the inner diameter of the variable-diameter groove.

[0020] Further, the clamping component is externally sleeved with a protection component, and the protection component comprises two protective covers;

[0021] The upper and lower ends of the side wall of the adjusting piece, the side wall of the first hinged seat and the top end of the claw tip are all provided with an assembly groove, and the assembly groove is used for clamping the protective cover;

[0022] Both of the protective covers are axially sleeved on the outside of the clamping component.

[0023] Further, the clamp is an outer clamping jaw, and is used for clamping the shaft carrier roller.

[0024] The outer clamping jaw comprises a clamping mechanism, a second hinge seat, an inner taper sleeve and a second hook, the clamping mechanism mainly comprises a first jaw, a second jaw and an elastic assembly, the first jaw and the second jaw are mirror images, the upper ends of the first jaw and the second jaw are respectively hinged to the left and right sides of the second hinge seat, the first jaw and the second jaw are opened under the action of the elastic assembly, the inner taper sleeve is sleeved outside the first jaw and the second jaw, and the second hook is assembled at the top of the second hinge seat.

[0025] The bottom end of the first jaw and the second jaw is provided with an arc-shaped clamping jaw hook.

[0026] Further, a flat key groove is arranged in the clamping groove of the first jaw and the second jaw.

[0027] Further, two protective covers are assembled on the outside of the clamping mechanism through an assembling ring, and the two protective covers completely cover the clamping mechanism.

[0028] Further, the two protective covers are respectively a lower cover and an upper cover, and the two ends of the lower cover and the upper cover are provided with annular elastic fasteners.

[0029] The bottom of the outer wall of the first jaw and the second jaw is provided with a main ring groove, the lower surface of the inner taper sleeve is provided with a variable diameter section, and the outer wall of the variable diameter section is provided with a secondary ring groove.

[0030] The top surface of the second hinge seat and the inner taper sleeve is respectively provided with an upper ring and a lower ring.

[0031] The elastic fasteners at the upper and lower ends of the lower cover are respectively embedded in the lower ring and the main ring groove, and the elastic fasteners at the upper and lower ends of the upper cover are respectively embedded in the upper ring and the secondary ring groove.

[0032] Further, the inner wall of the inner taper sleeve is also a tapered surface, and the taper angle is two levels.

[0033] The beneficial effects of the utility model are as follows:

[0034] The inner expanding clamping jaw and the outer clamping jaw are configured based on the lifting platform and the lifting tool wheel rotating platform, the user can select the corresponding clamp according to the coating product, various requirements of the automatic workpiece feeding and discharging of the roller coating production line can be met, manual workpiece feeding and discharging can be replaced, the control precision requirement of the lifting mechanism is low, and the overall cost of the roller automatic coating line is reduced.

[0035] The protective cover covers the outside of the clamp, can effectively avoid that the paint splashes to the hinge and the elastic mechanism of the clamping mechanism, and reduces the failure rate of the clamping mechanism.

[0036] The inner expanding clamping jaw can adapt to most semi-automatic coating equipment on the market, and the coating equipment modification cost is reduced.

[0037] The overall structure is simple, and the opening and closing of the clamping jaw can be controlled through a simple external lifting structure.

[0038] During clamping, the clamping jaw structure forms a self-locking relationship with the carrier roller, and the clamping effect is stable.

[0039] The outer clamping type clamping jaw controls the opening and closing of the clamping mechanism through the lifting control of the inner taper sleeve, the lifting fork structure matched with the inner taper sleeve is simple, and the inner taper sleeve is driven under the self weight and forms a self-locking with the clamping mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is a production line structure schematic view of the utility model;

[0041] Figure 2 It is a structure schematic view of the embodiment two clamp of the utility model;

[0042] Figure 3 It is an axial sectional view of the embodiment two clamp of the utility model;

[0043] Figure 4 It is a structure schematic view of the clamping assembly of the embodiment two clamp of the utility model;

[0044] Figure 5 It is a structure schematic view of the core rod of the embodiment two clamp of the utility model;

[0045] Figure 6 It is a structure schematic view of the clamping assembly of the embodiment two clamp of the utility model in the open state;

[0046] Figure 7 It is a structure schematic view of the embodiment three clamp of the utility model;

[0047] Figure 8 It is an internal structure schematic view of the embodiment three clamp of the utility model in the overhead angle;

[0048] Figure 9 It is an internal structure schematic view of the embodiment three clamp of the utility model in the bottom view angle;

[0049] Figure 10 It is a sectional view of the clamping mechanism of the embodiment three clamp of the utility model;

[0050] Figure 11 It is a variable diameter angle schematic view of the clamping jaw of the embodiment three clamp of the utility model;

[0051] Figure 12 It is a clamping state schematic view of the embodiment three clamp of the utility model;

[0052] Figure 13 It is a structure schematic view of the lifting shift fork mechanism of the utility model;

[0053] The reference signs include:

[0054] 1, lifting platform; 2, roller positioning seat; 3, lifting wheel rotating platform;

[0055] 4, clamp;

[0056] 41, inner expanding clamping jaw;

[0057] 411, clamping assembly; 4111, jaw tip; 4112, conical section; 4113, hinged section; 4114, central groove; 4115, variable-diameter groove;

[0058] 412, core rod; 4121, main rod body; 4122, variable-diameter rod; 4123, spindle;

[0059] 413, adjusting piece; 414, first hinged seat;

[0060] 415, protection assembly; 4151, first protective cover; 4152, second protective cover; 4153, assembly groove;

[0061] 416, first hook; 4161, externally connected table;

[0062] 417, boss;

[0063] 42, outer clamping jaw;

[0064] 421, clamping mechanism; 4211, first jaw; 4212, second jaw; 4213, flat key groove; 4214, assembly seat; 4215, elastic assembly; 4216, main ring groove;

[0065] 422, second hinged seat;

[0066] 423, inner conical sleeve; 4231, secondary ring groove;

[0067] 424, second hook;

[0068] 425, assembly ring; 4251, upper ring; 4252, lower ring;

[0069] 4261, lower cover; 4262, upper cover;

[0070] 5, lifting shift fork mechanism; 501, connecting seat; 502, fork head;

[0071] 6, roller; 61, shaftless roller; 62, shafted roller. DETAILED DESCRIPTION

[0072] The utility model will be described in detail below in combination with the drawings.

[0073] Example one

[0074] Refer to Figure 1 A feeding and discharging device of a carrier roller automatic coating line, comprising a lifting platform 1, a lifting tool wheel rotating platform 3, a clamp 4 and a lifting fork mechanism 5, the lifting tool wheel rotating platform 3 is laid on the top of a workshop, a plurality of clamps 4 are hung below the lifting tool wheel rotating platform 3, the lifting fork mechanism 5 is assembled on an external telescopic mechanism, the external telescopic mechanism is connected with an external lifting mechanism, that is, the lifting fork mechanism 5 can complete the up-down lifting action and the front-rear telescopic action under the driving of the external telescopic mechanism and the external lifting mechanism, the lifting range of the lifting fork mechanism 5 matches the hanging height of the clamp 4, the middle section of the lifting tool wheel rotating platform 3 is a coating device assembly interval, lifting platforms 1 are arranged directly below both ends of the lifting tool wheel rotating platform 3, and protective sleeve structures are sleeved outside the clamps 4.

[0075] During the feeding and discharging process, the carrier roller 6 is placed on the lifting platform 1.

[0076] A plurality of carrier roller positioning seats 2 are arranged on the upper surface of the lifting platform 1, and the carrier roller 6 is inserted into the carrier roller positioning seat 2.

[0077] The clamp 4 is an inner expansion clamping jaw 41 or an outer clamping jaw 42.

[0078] Refer to Figure 13 The lifting fork mechanism 5 is composed of a connecting seat 501 and fork heads 502, the connecting seat 501 is in a "Y" shape, the number of the fork heads 502 is two, the longitudinal section of each fork head 502 is in a "U" shape, the two fork heads 502 are symmetrically distributed on the end face of the connecting seat 501, and the openings of the two fork heads 502 are oppositely arranged.

[0079] A chamfer is arranged on the adjacent surfaces of the two fork heads 502 in the same group.

[0080] Embodiment two

[0081] Compared with embodiment one, the difference of the present embodiment lies in that:

[0082] Refer to Figures 2-6 Specifically, the clamp 4 is an inner expansion clamping jaw 41, which is used for clamping the shaftless carrier roller 61.

[0083] The inner expansion clamping jaw 41 comprises a clamping assembly 411, a core rod 412, an adjusting piece 413 and a first hinged seat 414, the first hinged seat 414 is in an annular structure, a plurality of clamping assemblies 411 are concentrically and uniformly arranged, the top end of each clamping assembly 411 is hinged into the first hinged seat 414, the core rod 412 axially penetrates the first hinged seat 414, and the core rod 412 is located between the plurality of clamping assemblies 411, and a first hook 416 is arranged at the top end of the core rod 412.

[0084] The clamping assembly 411 is a rod-shaped piece with a fan-shaped cross section.

[0085] The clamping assembly 411 comprises a claw tip 4111, a tapered section 4112, and a hinged section 4113, the claw tip 4111 and the hinged section 4113 are respectively arranged at the lower end and the upper end of the tapered section 4112;

[0086] An arc-shaped groove is axially arranged on the side wall of the clamping assembly 411, and a plurality of arc-shaped grooves are concentrically and uniformly distributed after the plurality of clamping assemblies 411 are spliced, so that the plurality of arc-shaped grooves can be spliced into a central groove 4114, the central groove 4114 and the size and shape of the core rod 412 are matched with each other, and the lower half of the central groove 4114 is a variable-diameter groove 4115;

[0087] The lower end of the core rod 412 is provided with a spindle rod 4123;

[0088] The inner diameter of the variable-diameter groove 4115 matches the outer diameter of the top end of the spindle rod 4123;

[0089] When the plurality of clamping assemblies 411 are rotated to the smallest opening angle, the inner diameter of the top end of the variable-diameter groove 4115 is smaller than the maximum outer diameter of the spindle rod 4123, so that the variable-diameter groove 4115 can pass through the perforation on the end surface of the shaftless carrier roller 61;

[0090] The inner side of the lower end surface of the clamping assembly 411 is chamfered, so that the spindle rod can be smoothly inserted between the plurality of clamping assemblies 411.

[0091] In a non-working state:

[0092] The adjusting member 413 is sleeved on the outer periphery of the tapered section 4112, the adjusting member 413 applies pressure to the tapered section 4112 under the action of gravity, and the tapered surface of the tapered section 4112 applies an inward gathering force to the plurality of clamping assemblies 411, so that the plurality of clamping assemblies 411 are maintained in a gathered state, and at this time, the spindle rod 4123 of the core rod 412 is located outside the plurality of clamping assemblies 411;

[0093] In a working state:

[0094] When feeding is needed, the adjusting member 413 is pulled upward to release the hinged restriction of the clamping assembly 411;

[0095] At the same time, the clamping assembly 411 slides downward along the core rod 412 under the action of gravity, and the spindle rod 4123 gradually enters between the plurality of clamping assemblies 411, the tapered surface of the spindle rod 4123 continuously applies an outward separating force to the inner wall of the claw tip 4111 of the plurality of clamping assemblies 411 during the process, and the plurality of clamping assemblies 411 are opened under the action of the spindle rod 4123;

[0096] Among them, the shaftless carrier roller 61 is placed on the liftable feeding and discharging platform;

[0097] When the clamping assembly 411 is in an open state, the outer wall of the claw tip 4111 abuts against the inner wall of the assembly groove of the end surface of the shaftless carrier roller 61;

[0098] The platform at the bottom of the idler roller 61 is lowered, and in this process, the outer wall of the claw tip 4111 and the inner wall of the assembly groove on the end surface of the idler roller 61 are fixed to each other under the action of friction, and the plurality of clamping assemblies 411 further descend under the action of the weight of the idler roller 61, driving the spindle rod 4123 to further intrude between the plurality of claw tips 4111, and the normal pressure of the outer wall of the claw tip 4111 on the inner wall of the assembly groove on the end surface of the idler roller 61 also increases, reaching a self-locking state.

[0099] When it is necessary to unload, the entire device is suspended above the liftable unloading platform, the unloading platform first lifts the idler roller 61, and then pulls the first hinged seat 414 upward, so that the clamping assembly 411 rises with the first hinged seat 414, and in this process, the spindle rod 4123 gradually separates from the plurality of clamping assemblies 411, the plurality of clamping assemblies 411 gradually converge under the tendency of the self-weight and the adjusting member 413, and the claw tip 4111 also separates from the idler roller 61.

[0100] Preferably, the clamping assembly 411 is a 120-degree sector in cross section.

[0101] The number of clamping assemblies 411 is three.

[0102] The central groove 4114 is a tubular cavity with a circular cross section.

[0103] The core rod 412 includes a main rod body 4121 and a variable-diameter rod 4122, the radius of the main rod body 4121 matches the inner diameter of the central groove 4114, and the radius of the variable-diameter rod 4122 matches the inner diameter of the variable-diameter groove 4115.

[0104] The clamping assembly 411 is externally sleeved with a protection assembly 415, and the protection assembly 415 includes two protective covers.

[0105] The upper and lower ends of the side wall of the adjusting member 413, the side wall of the first hinged seat 414, and the top end of the claw tip 4111 are all provided with assembly grooves 4153 for clamping the protective covers.

[0106] The two protective covers are axially sleeved on the outside of the clamping assembly 411.

[0107] Among them, the two protective covers are a first protective cover 4151 and a second protective cover 4152, the first protective cover 4151 is located between the adjusting member 413 and the first hinged seat 414, and the second protective cover 4152 is located between the adjusting member 413 and the claw tip 4111.

[0108] The outer side walls of the adjusting member 413 and the first hinged seat 414 are both provided with bosses 417.

[0109] The bosses 417 can be conveniently docked with the external lifting mechanism.

[0110] The root of the first hook 416 is fixedly installed with an external interface platform 4161.

[0111] The external interface platform 4161 is used for interfacing with the outside.

[0112] Embodiment three

[0113] Compared with embodiment one, the difference of the present embodiment lies in that:

[0114] With reference to Figures 7-12 , specifically, the clamp 4 is an outer clamping type jaw 42, which is specifically used for clamping the shafted carrier roller 62;

[0115] The outer clamping type jaw 42 comprises a clamping mechanism 421, a second hinge seat 422, an inner taper sleeve 423 and a second hook 424, the clamping mechanism 421 mainly consists of a first jaw 4211, a second jaw 4212 and an elastic assembly 4215, the first jaw 4211 and the second jaw 4212 are mirror images, the upper ends of the first jaw 4211 and the second jaw 4212 are respectively hinged to the left and right sides of the second hinge seat 422, the first jaw 4211 and the second jaw 4212 are opened under the action of the elastic assembly 4215, the inner taper sleeve 423 is sleeved outside the first jaw 4211 and the second jaw 4212, and the second hook 424 is assembled at the top of the second hinge seat 422;

[0116] The bottom end of the first jaw 4211 and the second jaw 4212 is provided with an arc-shaped clamping jaw hook.

[0117] In the clamping state, the clamping jaw hook tightly holds the shaft at the end of the shafted carrier roller 62.

[0118] The first jaw 4211 and the second jaw 4212 are provided with a flat key groove 4213 in the clamping groove.

[0119] The shaft side wall of the shafted carrier roller 62 is provided with a uniform standard flat key, and the position of the flat key groove 4213 corresponds to the flat key.

[0120] The assembly seat 4214 in the middle of the inner side wall of the first jaw 4211 and the second jaw 4212 is provided with an embedding groove in the middle of the side wall, which is in the shape of “concave” in the top view, and the elastic assembly 4215 is assembled in the embedding groove of the assembly seat 4214.

[0121] Preferably, the elastic assembly 4215 is a spring.

[0122] The outside of the clamping mechanism 421 is sleeved with two protective covers through an assembly ring 425, and the two protective covers completely cover the clamping mechanism 421.

[0123] Specifically, the two protective covers are a lower cover 4261 and an upper cover 4262, and the two ends of the lower cover 4261 and the upper cover 4262 are provided with annular elastic fasteners;

[0124] The bottom of the outer wall of the first clamping jaw 4211 and the second clamping jaw 4212 is provided with a main ring groove 4216, and the lower surface of the inner taper sleeve 423 is provided with a variable diameter section, and the outer wall of the variable diameter section is provided with a secondary ring groove 4231;

[0125] The top surface of the second hinge seat 422 and the inner taper sleeve 423 is respectively provided with an upper ring 4251 and a lower ring 4252;

[0126] The elastic fasteners at the upper and lower ends of the lower cover 4261 are respectively embedded into the lower ring 4252 and the main ring groove 4216, and the elastic fasteners at the upper and lower ends of the upper cover 4262 are respectively embedded into the upper ring 4251 and the secondary ring groove 4231.

[0127] Preferably, the taper angle of the side wall of the first clamping jaw 4211 and the second clamping jaw 4212 is divided into three levels, and the angle gradually increases from top to bottom;

[0128] The inner wall of the inner taper sleeve 423 is also a taper surface, and the taper angle is divided into two levels.

[0129] Specifically, the three-level taper angles of the side wall taper surfaces of the first clamping jaw 4211 and the second clamping jaw 4212 are angle a, angle b and angle c, and a > b > c;

[0130] The inner wall of the inner taper sleeve 423 is also a taper surface, and the taper angle of the taper surface matches angle b and angle c.

[0131] The above is only a preferred embodiment of the present application, and for those skilled in the art, many changes can be made in the specific implementation and application range according to the idea of the present application, as long as these changes do not deviate from the concept of the present application, and all belong to the protection scope of the present application.

Claims

1. A feeding and discharging device of a carrier roller automatic coating line, characterized in that: It includes a lifting platform, a lifting device rotating platform, clamps, and a lifting fork mechanism. The lifting device rotating platform is laid on the top of the workshop. Multiple clamps are hung on the lifting device rotating platform. The lifting fork mechanism is assembled on an external telescopic mechanism, which is connected to an external lifting mechanism. That is, the lifting fork mechanism can complete the up-and-down lifting and forward-and-backward telescopic movements under the drive of the external telescopic mechanism and the external lifting mechanism. The lifting range of the lifting fork mechanism matches the suspension height of the clamps. The middle section of the lifting device rotating platform is the assembly area for the painting equipment. Lifting platforms are set directly below both ends of the lifting device rotating platform. The clamps are all fitted with protective sleeve structures. During the loading and unloading process, the idler rollers are placed on the lifting platform; The upper surface of the lifting platform is provided with multiple roller positioning seats, and the rollers are inserted into the roller positioning seats. The clamp is either an internally expanding clamping jaw or an externally clamping jaw.

2. The feeding and discharging equipment of the automatic coating line of the carrier roller according to claim 1, characterized in that: The lifting fork mechanism consists of a connecting seat and two fork heads. The connecting seat is Y-shaped, and there are two fork heads. The longitudinal section of the fork heads is U-shaped. The two fork heads are symmetrically distributed on the end face of the connecting seat, and the openings of the two fork heads face each other.

3. The feeding and discharging device of the automatic coating line of the carrier roller according to any one of claims 1 or 2, characterized in that: The clamp is an internally expanding clamping jaw, specifically designed for clamping shaftless idlers; The internally expanding clamping gripper includes a clamping assembly, a core rod, an adjusting component, and a first hinge seat. The first hinge seat has a ring structure. Multiple clamping assemblies are concentrically and evenly distributed, and the top ends of multiple clamping assemblies are hinged to the first hinge seat. The core rod axially passes through the first hinge seat and is located between multiple clamping assemblies. A first hook is provided at the top end of the core rod. The clamping assembly is a rod-shaped component with a fan-shaped cross-section; The clamping assembly includes a claw tip, a tapered section, and a hinged section, with the claw tip and hinged section respectively located at the lower and upper ends of the tapered section; The clamping assembly has an axial arc groove on its side wall. After multiple clamping assemblies are assembled, the multiple arc grooves are concentrically distributed and can be assembled into a central groove. The size and shape of the central groove match the core rod. The lower half of the central groove is a variable diameter groove. A spindle rod is provided at the lower end of the core rod; The inner diameter of the variable diameter groove matches the outer diameter of the top of the spindle rod. When the multiple clamping components are rotated to the minimum opening angle, the inner diameter of the top of the variable diameter groove is smaller than the maximum outer diameter of the spindle rod, which facilitates passing through the perforation on the end face of the shaftless idler roller; The lower end face of the clamping assembly has a chamfer on the inner side, which facilitates the smooth insertion of the spindle rod between multiple clamping assemblies.

4. The feeding and discharging equipment of the automatic coating line of the carrier roller according to claim 3, characterized in that: The core rod includes a main rod body and a variable diameter rod. The radius of the main rod body matches the inner diameter of the central groove, and the radius of the variable diameter rod matches the inner diameter of the variable diameter groove.

5. The feeding and discharging equipment of the automatic coating line of the carrier roller according to claim 3, characterized in that: The clamping assembly is externally fitted with a protective assembly, which includes two protective covers; The upper and lower ends of the side wall of the adjusting component, the side wall of the first hinge seat, and the top of the claw tip are all provided with assembly slots, which are used to attach the protective cover. Both of the protective covers are axially fitted onto the outside of the clamping assembly.

6. The feeding and discharging equipment of the automatic coating line of the carrier roller according to any one of claims 1 or 2, characterized in that: The clamp is an external clamping jaw, specifically designed for clamping shafted rollers; The outer clamping type clamp jaw comprises a clamping mechanism, a second hinging seat, an inner taper sleeve and a second hook, the clamping mechanism mainly comprises a first clamp jaw, a second clamp jaw and an elastic assembly, the first clamp jaw and the second clamp jaw are mirror images, the upper ends of the first clamp jaw and the second clamp jaw are respectively hinged to the left and right sides of the second hinging seat, the first clamp jaw and the second clamp jaw are opened under the action of the elastic assembly, the inner taper sleeve is sleeved outside the first clamp jaw and the second clamp jaw, and the second hook is assembled at the top of the second hinging seat. The bottom end of the first clamp jaw and the second clamp jaw is provided with an arc-shaped clamping jaw hook.

7. The feeding and discharging equipment of the automatic coating line of the carrier roller according to claim 6, characterized in that: A flat key groove is arranged in the clamping groove of the first clamp jaw and the second clamp jaw.

8. The feeding and discharging equipment of the automatic coating line of the carrier roller according to claim 6, characterized in that: Two protective covers are assembled outside the clamping mechanism through the assembling ring, and the two protective covers completely cover the clamping mechanism.

9. The feeding and discharging equipment of the automatic coating line of the carrier roller according to claim 8, characterized in that: The two protective covers are respectively a lower cover and an upper cover, and the two ends of the lower cover and the upper cover are both provided with annular elastic fasteners. A main ring groove is formed in the bottom of the outer wall of the first clamp jaw and the second clamp jaw, a variable diameter section is arranged on the lower surface of the inner taper sleeve, and a secondary ring groove is arranged on the outer wall of the variable diameter section. An upper ring and a lower ring are respectively assembled on the top surfaces of the second hinging seat and the inner taper sleeve. The elastic fasteners at the upper and lower ends of the lower cover are respectively embedded in the lower ring and the main ring groove, and the elastic fasteners at the upper and lower ends of the upper cover are respectively embedded in the upper ring and the secondary ring groove.

10. The feeding and discharging equipment of the automatic coating line of the carrier roller according to claim 6, characterized in that: The inner wall of the inner taper sleeve is also a taper surface, and the taper angle of the taper surface is divided into two levels.

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