Supporting and positioning mechanism for bedspread processing

Abstract

The utility model belongs to the field of bedspread processing, and particularly relates to a supporting and positioning mechanism for bedspread processing, which comprises a processing table, the top surface of the processing table is fixedly connected with side plates in axial symmetry, the side surfaces of the side plates are fixedly connected with electric push rods, and one ends of the electric push rods penetrate through the side plates and are fixedly connected with positioning components. The side face of the machining table is fixedly connected with a control assembly. A positioning assembly driven by an electric push rod is arranged and matched with a driving motor to drive a positive and negative lead screw to drive a sliding block to move in a sliding groove in a two-way mode, so that a frame connected to the tail end of a universal joint can conduct multi-direction traction stretching on the four corners of a bedspread, and a screwing rod in threaded connection is used for driving a raised grain rubber block and a groove in the bottom face of the frame to form three-point clamping; automatic flattening and positioning of bedspread folds are achieved, the problem that efficiency is low due to the fact that a traditional device needs to pre-spread a bedspread manually is solved, and the machining and positioning automation degree is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bed cover processing, and specifically relates to a supporting and positioning mechanism for bed cover processing. BACKGROUND

[0002] Bed cover is one of the textiles used on beds. According to raw materials and processing methods, it is divided into woven bed cover, crepe bed cover, tufted bed cover and cotton-filled bed cover, etc.

[0003] In the prior art, for example, in the patent with the publication number CN219297790U, a supporting and positioning mechanism for bed cover processing is disclosed, which comprises an operating table, four load-bearing columns arranged at the bottom of the operating table, a sliding assembly arranged on both sides of the operating table, and a positioning assembly arranged above the sliding assembly and located on both sides of the operating table. The positioning assembly comprises a cylinder, a driving block and a driven block. The cylinder is arranged above the sliding assembly, and the cylinder is fixedly connected with the driving block through an output end. The utility model increases the sliding assembly and the positioning assembly on both sides of the inherent operating table, can realize full-automatic positioning, and the driving block is driven to stretch and retract by the cylinder. The driven block is driven to move downward by the two connecting rods, so as to drive the positioning plate to abut against the surface of the operating table to complete positioning, reduce positioning error, and improve production efficiency.

[0004] Although the above-mentioned patent can automatically position the bed cover through the sliding assembly and the positioning assembly, the bed cover needs to be manually placed in order before positioning operation, and the accumulated bed cover cannot be automatically flattened. In addition, the structure lacks monitoring of the positioning force of the bed cover, which may damage the bed cover due to excessive force. Therefore, a supporting and positioning mechanism for bed cover processing is proposed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the shortcomings of the prior art, the bed cover needs to be manually placed in order before positioning operation, and the accumulated bed cover cannot be automatically flattened. In addition, the structure lacks monitoring of the positioning force of the bed cover, which may damage the bed cover due to excessive force. Therefore, a supporting and positioning mechanism for bed cover processing is proposed to solve the above-mentioned problems.

[0006] The technical solution adopted by the utility model to solve the technical problems is as follows: the utility model discloses a supporting and positioning mechanism for bed cover processing, which comprises a processing table, a side plate fixedly connected with the top surface of the processing table in an axisymmetric manner, an electric push rod fixedly connected with the side surface of the side plate, a positioning assembly fixedly connected with one end of the electric push rod and penetrating through the side plate, and a control assembly fixedly connected with the side surface of the processing table.

[0007] The positioning assembly comprises a sliding groove fixedly connected to one end of the electric push rod, a sliding block axially symmetrically and slidably connected in the sliding groove, a forward-reverse screw rod threadedly connected in the sliding block, one end of the forward-reverse screw rod fixedly connected to an output end of a driving motor, a universal joint fixedly connected to a side surface of the sliding block, a tension sensor fixedly connected to one end of the universal joint, a frame fixedly connected to a side surface of the tension sensor, a threaded hole formed in a top surface of the frame, and a screw rod threadedly connected in the threaded hole, and a rubber block fixedly connected to a bottom end of the screw rod.

[0008] The control assembly comprises a device box fixedly connected to a side surface of the processing table, and a controller sleeved in the device box.

[0009] Preferably, one end of the sliding groove is provided with a limiting block matched with the sliding block, and the shell of the driving motor is fixedly connected to the end of the sliding groove through bolts.

[0010] Preferably, one end of the universal joint is fixedly connected to a side surface of the sliding block, and the other end is connected to a detection end of the tension sensor through a threaded connection mode.

[0011] Preferably, a wave-shaped anti-skid line is arranged on a bottom surface of the rubber block, and a groove corresponding to the rubber block is laid on a bottom surface of the frame.

[0012] Preferably, a display screen is embedded on a front surface of the controller, and the controller is electrically connected with the electric push rod, the driving motor and the tension sensor through wires.

[0013] Preferably, the controller is configured to dynamically adjust the extension stroke of the electric push rod and the rotation direction of the driving motor according to a real-time tension value detected by the tension sensor.

[0014] The utility model discloses the beneficial effect lies in:

[0015] 1. The utility model discloses a positioning assembly driven by an electric push rod, a driving motor drives a forward-reverse screw rod to drive a sliding block to move bidirectionally in a sliding groove, so that a frame connected to the end of the universal joint can implement multidirectional traction and stretching on the four corners of the bed cover, a screw rod connected by threads drives a wave-shaped rubber block and a groove on the bottom surface of the frame to form three-point clamping, the automatic flattening and positioning of the bed cover wrinkles are realized, the problem of low efficiency caused by manual pre-laying of the bed cover in the traditional device is solved, and the degree of automation of processing and positioning is significantly improved.

[0016] 2.The utility model discloses a tension sensor is connected in series in the universal joint end, and real -time tension data is fed back to the controller, when detecting that the tension of certain direction exceeds the preset threshold value, the controller immediately reverses the telescopic amount of electric push rod and the steering of drive motor, forms closed -loop force control system, effectively avoid the bed cover tearing or deformation caused by the overload of traditional mechanical positioning, especially through the flexible contact structure of frame and rubber block further guarantee the surface integrity of precision fabric in the process of strong stretching. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, below description in the drawing only some embodiments of the utility model, for those of ordinary skill in the art come, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0018] Figure 1 It is the overall structure schematic diagram of the utility model;

[0019] Figure 2 It is the positioning assembly structure schematic diagram of the utility model;

[0020] Figure 3 It is the control assembly structure schematic diagram of the utility model;

[0021] Figure 4 It is the split structure schematic diagram of the utility model.

[0022] In the drawing: 1, processing platform;2, side plate;3, electric push rod;4, positioning assembly;41, sliding groove;42, sliding block;43, positive and negative screw;44, drive motor;45, universal joint;46, tension sensor;47, frame;48, twist rod;49, rubber block;5, control assembly;51, equipment box;52, controller. DETAILED DESCRIPTION

[0023] Below, combining the drawing in the embodiment of the utility model, the technical scheme in the embodiment of the utility model is clearly and completely described, obviously, the described embodiment only is a part of the embodiment of the utility model, instead of all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0024] Please refer to Figures 1-4As shown, a kind of support positioning mechanism for bed cover processing includes processing table 1, the top surface of processing table 1 is fixedly connected with side plate 2 in axial symmetry, the side surface of side plate 2 is fixedly connected with electric push rod 3, one end of electric push rod 3 penetrates through side plate 2 and is fixedly connected with positioning assembly 4, the side surface of processing table 1 is fixedly connected with control assembly 5;Positioning assembly 4 includes sliding slot 41 fixedly connected to one end of electric push rod 3, the inside of sliding slot 41 is slidably connected with sliding block 42 in axial symmetry, the inside of sliding block 42 is threadedly connected with positive and negative screw rod 43, one end of positive and negative screw rod 43 is fixedly connected to the output end of drive motor 44, the side surface of sliding block 42 is fixedly connected with universal joint 45, one end of universal joint 45 is fixedly connected with tension sensor 46, the side surface of tension sensor 46 is fixedly connected with frame 47, the top surface of frame 47 is provided with threaded hole, the inside of threaded hole is threadedly connected with screw rod 48, the bottom end of screw rod 48 is fixedly connected with rubber block 49;

[0025] When working, the operator places the four corners of the bed cover to be processed into the four frames 47 respectively, rotates the screw rod 48 at the top of each frame 47, so that the rubber block 49 connected by threads is pressed downward along the threaded hole, and the bed cover edge is clamped by the cooperation of the wave-shaped anti-skid lines and the grooves on the bottom surface of the frame 47;After starting the control assembly 5, the controller 52 controls the electric push rod 3 to push the sliding slot 41 to move outward of the processing table 1, and simultaneously drives the drive motor 44 to rotate the positive and negative screw rod 43, so that the symmetrically distributed sliding blocks 42 slide in opposite directions along the sliding slot 41, and the frame 47 pulls the four corners of the bed cover to apply multi-directional stretching force, automatically eliminates the wrinkles of the bed cover and realizes accurate positioning, wherein the limiting block at the end of the sliding slot 41 restricts the movement range of the sliding block 42, to ensure that the stretching process is stable and controllable.

[0026] Further, the control assembly 5 includes the equipment box 51 fixedly connected to the side surface of the processing table 1, the inside of the equipment box 51 is sleeved with the controller 52, the front surface of the controller 52 is embedded with the display screen, and the controller 52 is electrically connected with the electric push rod 3, the drive motor 44 and the tension sensor 46 through wires;

[0027] When working, when the universal joint 45 detects that the stretching force in a certain direction exceeds the preset safety threshold, the controller 52 with model Siemens S7-1200 series PLC controller immediately reduces the extension speed of the corresponding electric push rod 3 through the built-in algorithm, and reverses the direction of the drive motor 44 to reduce the displacement of the sliding block 42, to form a closed-loop control system of real-time force feedback regulation;At the same time, the flexible buffer layer laid on the bottom surface of the frame 47 and the elastic contact structure of the rubber block 49 disperse local stress in the process of strong stretching, to avoid indentation or wear on the surface of the bed cover due to rigid extrusion, and the display screen on the front surface of the equipment box 51 displays the values of each tension sensor 46 and the equipment running state in real time, to facilitate the operator to monitor and intervene in abnormal working conditions.

[0028] Further, one end of the sliding groove 41 is provided with a limiting block matched with the sliding block 42, and the shell of the driving motor 44 is fixedly connected to the end of the sliding groove 41 by bolts;

[0029] In operation, the end of the sliding groove 41 is fixedly installed with the driving motor 44 by bolts, and the shell thereof is tightly attached to the end face of the sliding groove 41 to ensure that the positive and negative screw rods 43 are centered with the axis of the sliding groove 41. The limiting block arranged on the inner side of the sliding groove 41 is in contact with the side edge of the sliding block 42, and when the driving motor 44 drives the positive and negative screw rods 43 to rotate, the symmetrically distributed sliding blocks 42 move towards or away from each other along the sliding groove 41 and automatically stop at the limiting block to prevent the sliding blocks 42 from coming out of the sliding groove 41. This structure realizes quick disassembly, maintenance and assembly of the driving motor 44 through modular bolt connection, and the limiting block limits the stroke of the sliding block 42 to avoid deformation of the bed cover due to excessive stretching and ensure the safety of the equipment operation.

[0030] Further, one end of the universal joint 45 is fixedly connected to the side face of the sliding block 42, and the other end is connected to the detection end of the tension sensor 46 through threaded connection;

[0031] In operation, one end of the universal joint 45 is rigidly fixed to the side face of the sliding block 42 by welding or flange, and the other end is screwed to the inner thread of the detection end of the tension sensor 46 through external thread, forming a detachable force transmission structure. The multi-directional hinging feature of the universal joint 45 allows the frame 47 to adapt to the angle changes of the four corners of the bed cover during stretching, ensuring that the tension sensor 46 always detects the tension in the tangential direction of the bed cover edge. This design simplifies the sensor replacement process through threaded connection, and combined with the flexible steering function of the universal joint 45, it accurately feedbacks the actual tension values in all directions, avoiding measurement errors caused by angle deviation and improving positioning control accuracy.

[0032] Further, the bottom surface of the rubber block 49 is provided with a wavy anti-skid pattern, and the bottom surface of the frame 47 is paved with a groove corresponding to the rubber block 49;

[0033] In operation, the wavy anti-skid pattern on the bottom surface of the rubber block 49 is embedded in the pre-fabricated groove on the bottom surface of the frame 47, and when the twist rod 48 is screwed into the threaded hole, the rubber block 49 presses down to press the edge of the bed cover into the groove, and the wavy pattern increases the friction force of the contact surface. The flexible buffer layer laid in the groove is made of silica gel or sponge material, which disperses local pressure during clamping of the rubber block 49 to prevent indentation on the surface of the bed cover. This structure enhances the clamping stability through the physical locking of the pattern and the groove, and protects the fabric structure of the bed cover with flexible materials, efficiently fixing while avoiding mechanical damage, especially suitable for delicate processing scenes such as embroidery or printing.

[0034] Working principle: after the operator embeds the four corners of the bed cover into the four frames 47 respectively, rotates the twist rod 48 at the top of each frame 47, makes the bottom rubber block 49 press down through threaded transmission, clamps the edge of the bed cover by the cooperation of the wavy anti-skid lines and the groove on the bottom surface of the frame 47; then, the electric push rod 3 at the side of the processing table 1 pushes the sliding groove 41 to move horizontally to the preset working position along the side plate 2, the driving motor 44 is started synchronously and drives the lead screw 43 to rotate, the symmetrically distributed sliding blocks 42 slide in opposite directions in the sliding groove 41, the frame 47 is pulled to the bed cover through the universal joint 45 to apply multi-directional stretching force; in this process, the tension sensor 46 at the end of the universal joint 45 detects the tensile data in each direction in real time and transmits it to the controller 52 in the equipment box 51, when the detection value exceeds the preset threshold value, the controller 52 immediately dynamically adjusts the extension speed of the electric push rod 3 and the steering of the driving motor 44, forms a closed-loop force control system, ensures that the bed cover is both wrinkle-free and tear-free when it is flattened and positioned; after the stretching is completed, the flexible clamping structure of the frame 47 and the rubber block 49 maintains a fixed state until the processing is completed.

[0035] The above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, similar improvement, etc. within the theoretical and principle content of the present application shall be included in the protection scope of the present application.

Claims

1. A support positioning mechanism for bedskirt processing, characterized by: Including processing platform (1), the top surface of processing platform (1) is fixedly connected with side plate (2) in axial symmetry, the side surface of side plate (2) is fixedly connected with electric push rod (3), one end of electric push rod (3) penetrates side plate (2) and is fixedly connected with positioning assembly (4), the side surface of processing platform (1) is fixedly connected with control assembly (5); The positioning assembly (4) includes a chute (41) fixedly connected to one end of the electric push rod (3), the inside of the chute (41) is axially symmetrically connected with a sliding block (42), the inside of the sliding block (42) is threadedly connected with a positive and negative screw rod (43), one end of the positive and negative screw rod (43) is fixedly connected to the output end of a drive motor (44), the side surface of the sliding block (42) is fixedly connected with a universal joint (45), one end of the universal joint (45) is fixedly connected with a tension sensor (46), the side surface of the tension sensor (46) is fixedly connected with a frame (47), the top surface of the frame (47) is provided with a threaded hole, the inside of the threaded hole is threadedly connected with a screw rod (48), the bottom end of the screw rod (48) is fixedly connected with a rubber block (49); The control assembly (5) includes a device box (51) fixedly connected to the side surface of the processing platform (1), and a controller (52) is sleeved in the inside of the device box (51).

2. A support positioning mechanism for bed cover processing according to claim 1, characterized in that: One end of the chute (41) is provided with a limiting block matched with the sliding block (42), and the shell of the drive motor (44) is fixedly connected to the end of the chute (41) by bolts.

3. A support positioning mechanism for bed cover processing according to claim 1, characterized in that: One end of the universal joint (45) is fixedly connected to the side surface of the sliding block (42), and the other end is connected with the detection end of the tension sensor (46) by a threaded connection mode.

4. The support positioning mechanism for bedskirt processing of claim 1, wherein: The bottom surface of the rubber block (49) is provided with a wave-shaped anti-skid line, and the bottom surface of the frame (47) is paved with a groove corresponding to the rubber block (49).

5. A support positioning mechanism for bed sheet processing according to claim 1, wherein: The front surface of the controller (52) is embedded with a display screen, and the controller (52) is electrically connected with the electric push rod (3), the drive motor (44) and the tension sensor (46) by wires respectively.

6. A support positioning mechanism for bedskirt processing according to claim 1, wherein: The controller (52) is configured to dynamically adjust the extension stroke of the electric push rod (3) and the rotation direction of the drive motor (44) according to the real-time tension value detected by the tension sensor (46).

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