CN115385292B - Screen cloth assembling process for seat frame - Google Patents
Screen cloth assembling process for seat frame Download PDFInfo
- Publication number
- CN115385292B CN115385292B CN202211015755.XA CN202211015755A CN115385292B CN 115385292 B CN115385292 B CN 115385292B CN 202211015755 A CN202211015755 A CN 202211015755A CN 115385292 B CN115385292 B CN 115385292B
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- Prior art keywords
- seat frame
- plate
- frame body
- positioning
- mesh
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G7/00—Making upholstery
- B68G7/12—Other elements specially adapted for fastening, fixing, or finishing, in upholstery work
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a mesh assembly process of a seat frame body, which comprises the following steps of: step one, connecting a mesh part on a seat frame in advance; connecting the mesh cloth with the upper edge, the lower edge and the first side edge of one side of the seat frame body; the second side edge of the other side of the seat frame body is not connected with the mesh cloth temporarily; step two, mounting the whole seat frame body in a tooling fixture for assisting in net closing in a lateral direction, and enabling the second side edge of the seat frame body to face upwards horizontally; the positioning clamping assembly is positioned at the upper part of the tool clamp and horizontally clamps the screen cloth at the upper end; step three, the bottom end of the seat frame body is positioned in a positioning supporting plate and a sinking plate of the positioning sinking assembly up and down; the bottom end of the seat frame body is embedded in a supporting table on the positioning supporting plate; positioning the sinking assembly to sink so as to drive the mesh cloth at the integral opposite upper end of the seat frame body to sink; step five, connecting the mesh cloth on the second side edge to finish the assembly of the mesh cloth; and step six, taking the seat frame body out of the fixture clamp.
Description
Technical Field
The invention relates to the field of seats, in particular to a mesh assembly process of a seat frame body.
Background
At present, the use demands of people on chairs are increasing, and various types of chairs are mainly derived according to the demands; such as leisure chairs, office chairs, dining chairs, and the like; in addition, the existing chairs have not only riding functions, but also unique appearance and ergonomic design, use of breathable materials, and comfort in reclining. The mesh chair is one of the chairs, and in order to improve air permeability and heat dissipation, save materials and reduce cost, the mesh cloth is matched with a seat frame body to be combined and formed, and the chairs are collectively called as the mesh chair.
The prior art mesh chair mainly comprises a frame body and mesh cloth, wherein the mesh cloth is tightly wrapped on the frame body and is fixed on the frame body through a pressing strip, a fastening piece or a fastening piece; however, the assembly process of tightening and fixing the mesh cloth on the frame body is generally completed manually, and an operator needs to clamp and press the edge of the mesh cloth inwards along the outer periphery of the frame body to be embedded and fixed in the frame body; and still need on one side constantly with the screen cloth taut for the screen cloth can be finally in the connection of tightening form on the seat. Specifically: the general seat frame body is provided with an upper end part, a lower end part, a left side part and a right side part which are required to be connected with the mesh cloth; in the connecting process, the initial operation of the net is usually easy and labor-saving, and the net cloth is basically in a loose state at the moment, so that the net cloth can be easily connected with the seat frame body. However, with the subsequent operation, when most of the mesh is connected with the frame body, only the part on one side of the frame body is left to be connected with the mesh; at this time, the mesh cloth basically covers the seat frame body; the rest part to be connected requires the operators to take great effort to tighten the mesh cloth, and then the stretched part is finally connected to the frame body; however, in one process, the operator has to connect all the remaining mesh at one time, or if only a part of the mesh is embedded and then the mesh is released, the connected mesh is easily separated from the frame again under the action of the self-tensioning elastic force. Therefore, one hand of an operator is required to pull the mesh cloth all the time, and the other hand is required to connect the mesh cloth with the frame body by using a tool; there are clearly difficulties in that the operation is laborious and the difficulty coefficient is high.
In addition, due to the limitation of the operation experience and the operation level of workers, the tightness degree of the frame body for wrapping the mesh cloth, the wrapping accuracy and other chair quality are difficult to control; in addition, if an operator grabs the mesh cloth by hand to stretch the mesh cloth, the stress on the mesh cloth is uneven, and the mesh cloth is possibly torn due to concentrated local stress; even if the operator performs a few successful operations, the operator continuously spends effort tensioning the mesh cloth, which results in very sour hands, and the success rate of the subsequent operations is reduced; the assembly efficiency is reduced.
Aiming at the problems, a screen cloth assembling process is continuously provided, and automatic or semi-automatic connection of screen cloth can be realized; the problem of net tightening can be solved, and the physical strength of the operating human body is released.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a mesh assembly process of a seat frame body; when the seat frame body is covered with the net, the net cloth is connected with the seat frame body in advance, so that only the second side edge needs to be connected with the net cloth; then, clamping the mesh cloth at the position, close to the second side edge, of the seat frame body by using a fixture clamp, wherein the fixture clamp can drive the seat frame body to sink relative to the mesh cloth; the mesh cloth is correspondingly tensioned, and the upper end of the mesh cloth is upwards beyond the second side edge; the mesh cloth can be easily connected with the second side edge to complete the assembly of the mesh cloth; the mesh cloth on the seat frame body is clamped and stretched through the tool clamp, and an operator does not need to manually stretch the mesh cloth, so that a ring with the most laborious mesh-closing operation in the prior art is solved; thereby greatly releasing the labor force of operators and improving the net-closing efficiency of the seat frame body.
The technical scheme of the invention is realized as follows:
a mesh assembly process of a seat frame body comprises the following steps:
step one, connecting a mesh part on a seat frame in advance; connecting the mesh cloth with the upper edge, the lower edge and the first side edge of one side of the seat frame body; the second side edge of the other side of the seat frame body is not connected with the mesh cloth temporarily;
step two, mounting the whole seat frame body in a tooling fixture for assisting in net closing in a lateral direction, and enabling the second side edge of the seat frame body to face upwards horizontally; the bottom end of the seat frame body is supported by a positioning sinking component positioned at the lower part of the tool clamp; the positioning clamping component is positioned at the upper part of the tool clamp and horizontally clamps the mesh cloth close to the second side edge; the main positioning clamping plate, the first positioning clamping plate and the second positioning clamping plate of the positioning clamping assembly clamp the mesh cloth to enable the side section outline of the mesh cloth to be matched with the side section outline of the seat frame;
step three, the bottom end of the seat frame body is positioned in a positioning supporting plate and a sinking plate of the positioning sinking assembly up and down; the bottom end of the seat frame body is embedded in a supporting table on the positioning supporting plate; a first lower pressure plate on the sinking plate above the support table moves towards the seat frame to vertically position the back side frame of the seat frame bottom between the support table and the first lower pressure plate; a second lower pressing plate on the sinking plate moves towards the seat frame body to vertically position a seat side frame at the bottom of the seat frame body between the supporting table and the second lower pressing plate;
step four, positioning the sinking assembly to sink so as to drive the seat frame body to sink integrally, and enabling the second side edge of the seat frame body positioned at the upper end to move downwards relative to the mesh cloth at the upper end; the upper end of the mesh cloth will be upwards beyond the second side edge;
step five, connecting the mesh cloth positioned at the upper end on the second side edge of the seat frame body to finish the assembly of the mesh cloth;
step six, taking the seat frame body out of the fixture clamp; the positioning clamping assembly loosens the mesh cloth; the positioning sinking assembly is lifted and reset, and the first lower pressing plate and the second lower pressing plate are respectively moved and reset; so that the seat frame body can be separated from the fixture.
Preferably, in the second and third steps, the fixture comprises an upper substrate located right above the positioning sinking assembly, and the upper substrate is provided with a hollowed first avoidance groove for avoiding the lateral passage of the seat frame; the bottom end of the sinking plate is attached to the upper end of the supporting table, and a hollowed-out second avoidance groove exposing the supporting table is formed in the sinking plate; the first avoidance groove, the second avoidance groove and the supporting table are overlapped up and down; the seat frame body is kept laterally, sequentially passes through the first avoidance groove and the second avoidance groove from top to bottom and is embedded in the supporting table. Thereby make seat box body can very convenient install in frock clamp.
Preferably, the positioning clamping assembly is arranged at the upper end of the upper substrate, and the main positioning clamping plate, the first positioning clamping plate and the second positioning clamping plate are enclosed at the first avoiding groove; the outer peripheral outline of the main positioning clamp plate at the first avoidance groove is matched with the side section outline of the seat frame body; the outer periphery of the main locating clamp plate, which is positioned at the first avoidance groove, comprises a seat part blank holder, a back part blank holder and an arc-shaped blank holder formed between the seat part blank holder and the back part blank holder. The design makes the outer periphery of main location splint can just laminate with the longitudinal section profile of screen cloth on the seat framework to the tight screen cloth of clamp that can be stable, and make the tight tensile force of clamp everywhere even.
Preferably, the first positioning clamping plate is right opposite to one side of the back pressing edge of the main positioning clamping plate, a first pressing edge is arranged on the outer periphery of the first avoiding groove, and the outline of the first pressing edge is matched with the outline of the back pressing edge and the outline of the partial arc pressing edge. So that the first locating clamping plate can be combined and clamped with the main locating clamping plate to horizontally clamp the mesh cloth positioned on the back of the seat frame body.
Preferably, the second locating clamping plate is right opposite to the seat part side of the main locating clamping plate, the second locating clamping plate is provided with a second pressing edge at the outer periphery of the first avoiding groove, and the outline of the second pressing edge is matched with the outline of the seat part pressing edge and part of the arc pressing edge. The second locating clamping plate can be combined and clamped with the main locating clamping plate to horizontally clamp the mesh cloth of the seat frame body positioned at the seat.
Preferably, the main locating clamp plate, the first locating clamp plate and the second locating clamp plate are positioned at the same horizontal height; the main positioning clamping plate is detachably connected with the upper substrate; the first positioning clamp plate and the second positioning clamp plate are configured to be capable of sliding horizontally relative to the upper substrate. The first locating clamping plate and the second locating clamping plate can be far away from the main locating clamping plate so that the seat frame body can pass through the first avoiding groove; the first locating clamping plate and the second locating clamping plate are combined with the main locating clamping plate to clamp the mesh cloth, and the operation is convenient.
Preferably, the first positioning clamping plate is provided with a first push-pull assembly capable of driving the first positioning clamping plate to horizontally move, and the first push-pull assembly comprises a first push-pull electric cylinder arranged on the first positioning clamping plate; the second locating clamping plate is provided with a second push-pull assembly capable of driving the second locating clamping plate to horizontally move, and the second push-pull assembly comprises a second push-pull electric cylinder arranged on the second locating clamping plate. The first positioning clamping plate and the second positioning clamping plate can be stably driven to move by the first push-pull electric cylinder and the second push-pull electric cylinder, so that the device operates stably.
Preferably, the main locating clamp plate, the first locating clamp plate and the second locating clamp plate are all made of metal plates. The clamping effect is good, and the structure is stable after clamping; when the seat frame body sinks, the mesh cloth can be stably tensioned.
Preferably, the supporting platform is arranged at the upper end of the positioning supporting plate and protrudes upwards, and the supporting platform is provided with a caulking groove which can enable the side end of the seat frame body to be integrally embedded. The lower end of the seat frame body is embedded in the caulking groove of the supporting table, the mesh cloth is in press fit with the back side frame and the seat side frame at the lower end of the seat frame body, and then, when the seat frame body sinks, the mesh cloth cannot separate from the first side edge.
Preferably, in the third step, the outer peripheral edge contour of the first lower pressure plate coincides with the back side frame contour of the seat frame; a first pressing block protruding downwards is arranged at the end part of the first lower pressing plate along the outline of the outer periphery of the first lower pressing plate, and the first lower pressing plate moves towards the direction of the seat frame body so that the first pressing block is pressed on the upper end of the back side frame of the seat frame body; the outer peripheral outline of the second lower pressing plate is matched with the outline of the seat side frame of the seat frame body; a second pressing block protruding downwards is arranged at the end part of the second lower pressing plate along the outer peripheral outline of the second lower pressing plate; the second lower pressing plate moves towards the direction of the seat frame body to enable the second pressing block to be pressed on the upper end of the seat side frame of the seat frame body. The seat frame body is clamped between the caulking groove and the first pressing block and the second pressing block, so that the seat frame body keeps a stable positioning state.
Preferably, the saddle, the first pressing block and the second pressing block are all made of plastic materials. The bottom end of the seat frame body is positioned between the caulking groove of the supporting table and the first pressing block and the second pressing block; because the seat frame body is usually made of plastic materials, then the supporting table, the first pressing block and the second pressing block are made of plastic materials, and the seat frame body is prevented from being damaged when being positioned and pressed up and down.
Preferably, the first lower pressing plate is located right below the first locating clamping plate, and the second lower pressing plate is located right below the second locating clamping plate. When the seat frame moves downwards, the mesh cloth only receives stretching force in the longitudinal direction, and the stretching effect is better; and the clamping and stretching force applied to the screen cloth everywhere is uniform and is not easy to damage.
Preferably, the first lower pressing plate and the second lower pressing plate are both arranged at the upper end of the sinking plate in a sliding manner; and a first lower driving cylinder capable of driving the first lower pressing plate to slide horizontally and a second lower driving cylinder capable of driving the second lower pressing plate to slide horizontally are arranged on the sinking plate. The first lower pressing plate and the second lower pressing plate can be stably controlled to slide, and the operation is stable.
Preferably, the fixture further comprises a supporting base at the bottom, and the positioning sinking assembly and the upper substrate are sequentially arranged above the supporting base; a first lifting assembly is arranged between the upper base plate and the sinking plate; a second lifting assembly is arranged between the supporting base and the positioning supporting plate; in the fourth and sixth steps, the first lifting assembly is configured to drive the sinking plate to sink and rise; the second lifting assembly is configured to enable the positioning pallet to descend following the sinking plate and to drive the positioning pallet up and back again.
Preferably, the first lifting assembly comprises hydraulic cylinders arranged at two sides of the upper base plate in a mirror image manner; the upper end of the hydraulic oil cylinder is fixedly connected with the upper base plate, and a piston rod of the hydraulic oil cylinder is vertically downward and connected with the sinking plate; the hydraulic cylinder is configured to drive the sinking plate to sink and rise. The hydraulic oil cylinder is adopted, so that the sinking plate can be stably driven to move up and down relative to the upper base plate; and the load is high.
Preferably, the second lifting assembly comprises a cylinder arranged on the support base; the air rod at the upper end of each air cylinder is connected to the bottom of the positioning supporting plate; the cylinder is configured to enable the positioning pallet to descend along with the sinking plate and to drive the positioning pallet to ascend and reset again. When the sinking plate sinks, the first lower pressing plate and the second lower pressing plate are pressed downwards to act on the seat frame body together, and downward acting force is applied to the positioning supporting plate; so that the air rod is correspondingly contracted; when the sinking plate rises, the air rod can be reset to drive the positioning support plate to rise and reset again.
Preferably, longitudinal support guide rods are respectively arranged at the periphery of the support base, penetrate through the sinking plate and are connected to the upper substrate, and the support guide rods are configured to support the upper substrate; and the sinking plate is in sliding fit with the supporting guide rod. So that the sinking plate can stably move up and down relative to the upper substrate.
Preferably, the support base is further provided with a sliding rod which is upwards and sequentially penetrated on the positioning support plate and the sinking plate, and the positioning support plate can stably slide longitudinally along the sliding rod. So that the positioning support plate can stably slide up and down.
Preferably, the sinking distance of the seat frame body is between 2 cm and 15 cm.
Further, the sinking distance of the seat frame body is between 5cm and 10 cm.
The design starting point, the idea and the beneficial effects of the invention adopting the technical scheme are as follows:
1. according to the screen cloth assembly process of the seat frame body, when the seat frame body is subjected to screen printing operation; the operator connects the mesh cloth with the upper edge, the lower edge and the first side edge of the seat frame body in advance, so that only the second side edge needs to be connected with the mesh cloth; at this time, the mesh cloth is not completely connected with the seat frame body, and the mesh cloth is not required to be tensioned, so that the operation in the step is easier. Then the seat frame body is arranged in the working clamp, and the second side edge is horizontally upwards; clamping the mesh cloth at the position, close to the second side edge, of the seat frame body by using a fixture clamp, and positioning the sinking assembly to enable the whole seat frame body to sink relative to the upper end of the mesh cloth; the mesh cloth is correspondingly tensioned, and the upper end of the mesh cloth is upwards beyond the second side edge; then, operators can easily connect the upper end of the mesh with the second side edge to finish the assembly of the mesh; the mesh cloth on the seat frame body is clamped and stretched through the tool clamp, so that an operator does not need to manually stretch the mesh cloth, and the problem of the most laborious mesh-closing operation in the prior art is solved; thereby greatly releasing the physical strength of operators and effectively improving the net-closing efficiency of the seat frame body.
2. The outer peripheral outline of the main positioning clamp plate at the first avoiding groove is matched with the side section outline of the seat frame body, so that the main positioning clamp plate, the first positioning clamp plate and the second positioning clamp plate can firmly clamp the mesh cloth horizontally; and the stretching force applied to the screen cloth is uniform, so that the screen cloth is not damaged.
3, the bottom end of the seat frame body is embedded in the caulking groove of the supporting table, so that the mesh cloth is in press fit with the back side frame and the seat side frame at the bottom end of the seat frame body, and then the mesh cloth cannot be separated from the first side edge when the seat frame body is sunk; the bottom end of the seat frame body is positioned and clamped between the caulking groove and the first pressing block and the second pressing block, so that the seat frame body keeps a stable positioning state; so that the seat frame body moves steadily in the sinking process and does not shake and deviate.
4, arranging an air cylinder between the supporting base and the positioning supporting plate; when the sinking plate is sunk, the first lower pressing plate and the second lower pressing plate are downwards extruded together to act on the seat frame body, and downwards acting force is applied to the positioning support plate, so that the air rod is correspondingly contracted, and the positioning support plate can correspondingly sink. When the sinking plate ascends, the air rod can be reset to drive the positioning supporting plate to ascend and reset again; the structure is simple and reliable.
Drawings
FIG. 1 is a schematic perspective view of a seat frame according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a mesh cloth preliminarily connected with a seat frame in advance in an embodiment of the invention;
FIG. 3 is a schematic perspective view of a seat frame in an embodiment of the present invention ready for placement into a tooling fixture;
FIG. 4 is a schematic perspective view of a seat frame installed in a fixture according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a seat frame according to an embodiment of the present invention;
FIG. 6 is a schematic perspective view of the mesh fabric attached to the second side edge of the seat frame according to the embodiment of the invention
FIG. 7 is a schematic perspective view of a tool holder according to an embodiment of the present invention;
FIG. 8 is a top view of a tooling fixture in an embodiment of the invention;
FIG. 9 is a schematic perspective view of an upper substrate according to an embodiment of the present invention;
FIG. 10 is a side view of a tooling fixture in an embodiment of the present invention;
FIG. 11 is a schematic perspective view showing a seat frame being embedded in a caulking groove according to an embodiment of the present invention;
FIG. 12 is a schematic perspective view of a first press block and a second press block pressed on a seat frame in an embodiment of the invention;
FIG. 13 is a schematic perspective view of a sinking plate in an embodiment of the invention;
fig. 14 is a schematic perspective view of a positioning pallet according to an embodiment of the invention.
The reference numerals are as follows: a seat frame a; an upper edge a1; a lower edge a2; a first side edge a3; a second side edge a4; a back side frame a01; a seat side frame a02; a mesh b; a tooling fixture A; an upper substrate 1; positioning the sinking assembly 2; a support base 3; a first avoidance groove 4; a main positioning clamping plate 5; a mounting base 501; a seat pressing edge 5a; a back press edge 5b; arc-shaped blank pressing 5c; a first locating clamp plate 6; a second crimp 6a; a first push-pull electric cylinder 6b; a second locating splint 7; a second crimp 7a; a second electric push rod 7b; a first slide rail 8; a first fixed seat 9; a second slide rail 10; a second fixing base 11; a sinking plate 12; a positioning pallet 13; a pallet 14; a caulking groove 15; a first escape groove 16; a support guide bar 17; a hydraulic cylinder 18; a first lower pressure plate 19; a second lower pressure plate 20; a first lower driving cylinder 21; a second lower driving cylinder 22; a first press block 23; a second briquette 24; a slide bar 25; a cylinder 26; a gas lever 26a.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, the term "at least one" refers to one or more, unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The specific embodiments of the present invention are as follows:
as shown in fig. 1 to 14, the present invention provides a mesh assembly process of a seat frame; the process is used for connecting the seat frame body a with the mesh cloth b; the assembly process of the mesh cloth b is easy and labor-saving. Specifically: the assembly process comprises the following steps:
step one, as shown in fig. 1-2, connecting a mesh b part on a seat frame body a in advance; the seat frame body a is provided with an upper edge a1 positioned at the upper end of the seat back, a lower edge a2 positioned at the front end of the seat base, a first side edge a3 and a second side edge a4 positioned at the left side and the right side respectively; and the upper edge a1, the lower edge a2, the first side edge a3 and the second side edge a4 are provided with caulking grooves which are convenient for the mesh cloth b to be embedded and connected (the common practice in the prior art). The operator manually connects the mesh b with the upper edge a1, the lower edge a2 and the first side edge a3 of the seat frame body a in advance, so that only the second side edge a2 of the seat frame body a is left to be connected without the mesh b; in the connecting process, the mesh b is not completely connected with the seat frame body a at the moment, and the mesh b is not in a tight state yet; and then the operation is easier and more labor-saving, and operators can easily finish the step.
And secondly, installing the whole seat frame body a in a side-to-side state in a fixture clamp for assisting in the net, and enabling the second side edge a4 of the seat frame body a to face upwards horizontally.
The specific method is as follows: as shown in fig. 3, 4 and 7-14, auxiliary net-closing is performed by using a fixture A; the fixture A sequentially comprises an upper substrate 1, a positioning sinking assembly 2 and a supporting base 3 which are arranged at intervals from top to bottom; after the seat frame a is arranged in the working clamp, the bottom end of the seat frame a is supported by the positioning sinking assembly 2. The upper substrate 1 is provided with a hollowed-out L-shaped first avoidance groove 4 for avoiding the seat frame body a and a positioning clamping assembly. The first escape groove 4 is located at the center of the upper substrate 1, and as shown in fig. 8 and 9, the first escape groove 4 is configured such that the seat frame a can laterally pass through the upper substrate 1; the positioning clamping and pressing assembly comprises a horizontal main positioning clamping plate 5, a first positioning clamping plate 6 and a second positioning clamping plate 7 which are enclosed at the first avoiding groove 4; and the positioning and clamping assembly is configured to: after the seat frame body a is arranged in the fixture A, the positioning clamping assembly can clamp the mesh cloth b on the seat frame body a along the horizontal direction; specifically: the upper substrate 1 is in a rectangular structure, a mounting base 501 is arranged in the middle of one long side of the upper substrate 1, and the main positioning clamping plate 5 is detachably mounted on the mounting base 501; the outer peripheral outline of the main locating clamp plate 5 at the first avoiding groove 4 is matched with the side section outline of the seat frame body a; the outer periphery of the main positioning clamp plate 5 in the first avoidance groove 4 comprises a seat pressing edge 5a, a back pressing edge 5b and an arc pressing edge 5c formed between the seat pressing edge 5a and the back pressing edge 5b, and the seat pressing edge 5a and the back pressing edge 5b tend to be vertical; as shown in fig. 4, the outer peripheral edge of the main positioning jig 5 is designed so as to be exactly fitted to the longitudinal sectional profile of the mesh b on the seat frame body a. Further, the method comprises the following steps: the first locating clamping plate 6 is right opposite to the back pressing edge 5b side of the main locating clamping plate 5, a first pressing edge 6a is arranged on the outer periphery of the first avoiding groove 4, and the outline of the first pressing edge 6a is matched with the outline of the back pressing edge 5b and the outline of the partial arc pressing edge 5 c. Correspondingly, the second locating clamping plate 7 is opposite to one side of the seat pressing edge 5a of the main locating clamping plate 5, a second pressing edge 7a is arranged on the outer periphery of the second locating clamping plate 7, which is positioned at the first avoiding groove 4, and the outline of the second pressing edge 7a is matched with the outline of the seat pressing edge 5a and part of the arc pressing edge 5 c. So that the three parts can be relatively bonded together; and the main locating clamping plate 5, the first locating clamping plate 6 and the second locating clamping plate 7 are of metal plate-shaped structures, so that the structure strength is high, and the compacting effect is good.
Further, the first positioning clamp plate 6 and the second positioning clamp plate 7 are respectively in sliding fit with the upper substrate 1; the specific method is as follows: a first sliding rail 8 is arranged below the upper substrate 1 and the first positioning clamping plate 6, and the first positioning clamping plate 6 is arranged on the first sliding rail 8 in a sliding way; a first push-pull assembly is arranged on the first positioning clamping plate 6, the first push-pull assembly comprises a first push-pull electric cylinder 6b arranged on the first positioning clamping plate 6 and a first fixing seat 9 arranged on the upper substrate 1, a push rod on the first push-pull electric cylinder 6b is connected to the first fixing seat 9, and then the first push-pull electric cylinder 6b can drive the first positioning clamping plate 6 to slide along the first sliding rail 8. Approximately, a second sliding rail 10 which is in sliding connection with the second positioning clamping plate 7 is arranged below the second positioning clamping plate 7 on the upper substrate 1, a second push-pull assembly is arranged on the second positioning clamping plate 7, the second push-pull assembly comprises a second push-pull electric cylinder 7b arranged on the second positioning clamping plate 7 and a second fixed seat 11 arranged on the upper substrate 1, and a push rod on the second push-pull electric cylinder 7b is connected to the second fixed seat 11; the second push-pull electric cylinder 7b can drive the second locating clamping plate 7 to slide along the second sliding rail 10. The main locating clamp plate 5, the first locating clamp plate 6 and the second locating clamp plate 7 are positioned at the same horizontal height; then the first locating clamping plate 6 and the second locating clamping plate 7 are initially far away from the main locating clamping plate 5, so that the seat frame body a can laterally pass through the first avoiding groove 4; after the seat frame a is placed; the first positioning clamping plate 6 and the second positioning clamping plate 7 can respectively move towards the main positioning clamping plate 5, so that the first pressing edge 6a and the second pressing edge 7a respectively press with the main positioning clamping plate 5, and mesh cloth b on the seat frame body 1 can be firmly clamped and fixed; and the side cross-sectional profile of the mesh b at this time is made to coincide with the side cross-sectional profile of the seat frame. Furthermore, the main positioning clamping plate 5 is detachably connected with the mounting base 501, so that the main positioning clamping plate 5 can be detached first for better passing through the first avoiding groove 4 of the seat frame body a, and the main positioning clamping plate 5 is mounted after the seat frame body 1 is placed, so that consideration is given to the situation.
In the second step, the seat frame body a is installed in the fixture A, so that the bottom end of the seat frame body a is supported by the positioning sinking assembly 2; the positioning clamping assembly 2 on the upper base plate 1 clamps the mesh cloth b positioned below the second side edge a4 horizontally.
And thirdly, positioning the bottom end of the seat frame body a in the positioning sinking assembly 2 up and down. The method specifically comprises the following steps: as shown in fig. 7-14: the positioning sinking assembly 2 is positioned right below the upper substrate 1, and the positioning sinking assembly 2 comprises a sinking plate 12 and a positioning supporting plate 13 which are adjacently arranged up and down; wherein the sinking plate 5 is positioned above the positioning supporting plate 6; as shown in fig. 14, a supporting table 14 protruding upwards is provided at the middle position of the positioning pallet 6, a caulking groove 15 matching with the side end outline of the seat frame a is provided on the supporting table 14, and when the seat frame a is mounted in the fixture a as shown in fig. 4, the side part of the seat frame a at the bottom end can be just embedded in the caulking groove 15, so that the bottom end of the seat frame a is tightly combined with the supporting table 14. The bottom surface of the sinking plate 12 is abutted against the upper end surface of the supporting table 14, and a second avoidance groove 16 for avoiding the passage of the seat frame body a is also arranged in the center of the sinking plate 12, and the second avoidance groove 16 just exposes the supporting table 14; when the first avoidance groove 4, the second avoidance groove 16 and the supporting table 14 are overlapped up and down and then are installed, the seat frame a can sequentially pass through the upper substrate 1 and the sinking plate 12 from top to bottom, so that the bottom of the seat frame a is embedded in the embedded groove 15.
As shown in fig. 11 to 13, a first lower pressure plate 19 and a second lower pressure plate 20 capable of sliding horizontally are provided on the upper end surface of the sinking plate 12; the first lower pressing plate 19 is positioned right below the first positioning clamping plate 6, and the second lower pressing plate 20 is positioned right below the second positioning clamping plate 7; the first lower pressure plate 19 is slidably arranged on the sinking plate 12, and a first lower driving cylinder 21 capable of driving the first lower pressure plate 19 to slide is arranged on the sinking plate 12; correspondingly, the second lower pressing plate 20 is also slidably arranged on the sinking plate 12, and a second lower driving cylinder 22 capable of driving the second lower pressing plate 20 to slide is arranged on the sinking plate 12. Moreover, the outline of the outer periphery of the first lower pressing plate 19 is matched with the outline of the first pressing edge 6a, and a first pressing block 23 protruding downwards is arranged at the end part of the first lower pressing plate 19 along the outline of the outer periphery of the first lower pressing plate 19; the outer peripheral outline of the second lower pressing plate 20 is matched with the outline of the second pressing edge 7a, and a second pressing block 24 protruding downwards is arranged at the end part of the second lower pressing plate 20 along the outer peripheral outline of the second lower pressing plate 20. As shown in fig. 11, when the seat frame a is initially installed, the first lower pressure plate 19 and the second lower pressure plate 20 are both away from the second avoidance groove 16, so that the seat frame a can pass through the second avoidance groove 16 and be embedded in the lower insertion groove 15. The seat frame body a is provided with a back side frame a01 and a seat side frame a02 on either side; after the second step, i.e., in the third step, the first lower pressing plate 19 moves toward the seat frame a, so that the first pressing block 23 presses the upper end of the back side frame a01 of the seat frame a located at the first side edge 1 a; the second pressing block 20 is also moved toward the seat frame a so that the second pressing block 24 is also pressed against the upper end of the seat frame a bottom end seat side frame a02; so that the bottom end of the seat frame a is positioned on the supporting table 14 up and down at this time, so that the seat frame a is in a stable posture without shaking. And seat framework a bottom embedding is in the caulking groove 15 of saddle 14, can make screen cloth b and seat side frame a01 and seat side frame a02 of seat framework a lower extreme be the clamp fit, screen cloth b can not break away from first side edge a3. Furthermore, the supporting stand 14, the first pressing block 23 and the second pressing block 24 are all made of plastic materials; since the bottom end of the seat frame a is positioned between the pallet 14 and the first and second press pieces 23, 24; because seat framework a also is plastic materials, saddle 14, first briquetting 23 and second briquetting 24 adopt plastic materials equally then, can avoid damaging seat framework a when fixing a position from top to bottom and compress tightly, and the design is more careful.
Fourthly, when the mesh cloth b at the upper end of the seat frame body a is clamped, and the bottom end of the seat frame body a is positioned on the supporting table 14 by the first pressing block 23 and the second pressing block 24; the positioning and sinking assembly 2 is then sunk to drive the seat frame a to sink integrally, so that the second side edge a4 of the seat frame a at the upper end moves down relative to the mesh b at the upper end of the positioning and clamping assembly.
The specific method is as follows: longitudinal support guide rods 17 are respectively arranged around the support base 3, the support guide rods 17 penetrate through the sinking plate 12 and are connected to the upper substrate 1, and the support guide rods 17 can stably support the upper substrate 1; the sinking plate 12 is in sliding fit with the supporting guide rod 17, a first lifting assembly is arranged between the sinking plate 12 and the upper base plate 1, the first lifting assembly comprises hydraulic cylinders 18 which are arranged at two sides in a mirror image mode, the upper ends of the hydraulic cylinders 18 are arranged at the bottom end of the upper base plate 1, piston rods 18a of the hydraulic cylinders 18 are vertically downward, the piston rods 18a are connected to the sinking plate 12, and then the sinking plate 12 can be stably driven to ascend or descend through the driving action of the hydraulic cylinders 18; the hydraulic oil cylinder 18 is adopted, so that the sinking plate 12 can be stably driven to move up and down relative to the upper base plate 1; and the load is high, so that the clamp structure is stable. The support base 3 is also provided with a slide bar 25 which is penetrated through the positioning support plate 13 and the sinking plate 12 upwards in sequence, and the positioning support plate 13 can slide along the stable longitudinal direction of the slide bar 25; the supporting base 3 is also provided with an air cylinder 26 for supporting the positioning supporting plate 13, and an air rod 26a at the upper end of the air rod 26 is connected to the bottom of the positioning supporting plate 13; so that the positioning pallet 13 can also be lowered or raised under the action of the air bars 26.
In the fourth step, the hydraulic cylinder 18 drives the sinking plate 12 to sink a distance; correspondingly, the first pressing block 23 and the second pressing block 24 can be pressed down to act on the seat frame body a, so that the positioning support plate 13 is stressed and acts on the air rod 26a downwards to shrink, the positioning support plate 13 is synchronously lowered, and the seat frame body a is lowered along with the positioning support plate 13; as the upper end of the mesh b is clamped, the second side edge a4 of the upper end of the seat frame a moves downwards relative to the mesh b at the upper end, so that the upper end of the mesh b exceeds the second side edge a4 upwards as shown in fig. 5; at this time, the mesh b is correspondingly tensioned; the specific method is as follows: in this process, the sinking distance of the seat frame a is between 2 cm and 15cm, specifically 5cm.
Step five, then an operator connects the mesh cloth b positioned at the upper end on the second side edge a4 of the seat frame body a; so that the mesh b is completely connected with the seat frame a. In the step, as the mesh b is stretched upwards relative to the seat frame body a, the mesh b can be easily connected with the second side edge a4 of the seat frame body a, and the connection of operators is very convenient and labor-saving; the mesh b does not need to be stretched by an operator as in the prior art.
Step six, the first locating clamping plate 6 and the second locating clamping plate 7 are moved and reset to loosen the mesh b, and the mesh b can be naturally tightened on the seat frame body a; the hydraulic cylinder 18 drives the sinking plate 12 to ascend again, and the positioning supporting plate 13 moves upwards again to reset under the action of the air cylinder 26; the first lower pressure plate 19 and the second lower pressure plate 20 are moved to reset so that the first pressing block 23 and the second pressing block 24 are separated from the seat frame a; then, an operator only needs to take out the seat frame body a from the clamp, and the mesh cloth b is tightly connected to the seat frame body a.
Therefore, the auxiliary seat frame body a is connected with the mesh b by using the tool clamp A, so that an operator is not required to stretch the mesh b, the tool clamp A can clamp and stretch the mesh b stably, the stretching force is uniform, the mesh closing operation is very easy, and the problem of the most laborious mesh closing operation in the prior art is solved; thereby greatly releasing the labor force of operators and improving the net-closing efficiency of the seat frame body a.
Claims (20)
1. A mesh assembly process of a seat frame body is characterized in that: the method comprises the following steps:
step one, connecting a mesh part on a seat frame in advance; connecting the mesh cloth with the upper edge, the lower edge and the first side edge of one side of the seat frame body; the second side edge of the other side of the seat frame body is not connected with the mesh cloth temporarily;
step two, mounting the whole seat frame body in a tooling fixture for assisting in net closing in a lateral direction, and enabling the second side edge of the seat frame body to face upwards horizontally; the bottom end of the seat frame body is supported by a positioning sinking component positioned at the lower part of the tool clamp; the positioning clamping component is positioned at the upper part of the tool clamp and horizontally clamps the mesh cloth close to the second side edge; the main positioning clamping plate, the first positioning clamping plate and the second positioning clamping plate of the positioning clamping assembly clamp the mesh cloth to enable the side section outline of the mesh cloth to be matched with the side section outline of the seat frame;
step three, the bottom end of the seat frame body is positioned in a positioning supporting plate and a sinking plate of the positioning sinking assembly up and down; the bottom end of the seat frame body is embedded in a supporting table on the positioning supporting plate; a first lower pressure plate on the sinking plate above the support table moves towards the seat frame to vertically position the back side frame of the seat frame bottom between the support table and the first lower pressure plate; a second lower pressing plate on the sinking plate moves towards the seat frame body to vertically position a seat side frame at the bottom of the seat frame body between the supporting table and the second lower pressing plate;
step four, positioning the sinking assembly to sink so as to drive the seat frame body to sink integrally, and enabling the second side edge of the seat frame body positioned at the upper end to move downwards relative to the mesh cloth at the upper end; the upper end of the mesh cloth will be upwards beyond the second side edge;
step five, connecting the mesh cloth positioned at the upper end on the second side edge of the seat frame body to finish the assembly of the mesh cloth;
step six, taking the seat frame body out of the fixture clamp; the positioning clamping assembly loosens the mesh cloth; the positioning sinking assembly is lifted and reset, and the first lower pressing plate and the second lower pressing plate are respectively moved and reset; so that the seat frame body can be separated from the fixture.
2. The mesh assembly process of a seat frame according to claim 1, wherein: in the second and third steps, the fixture comprises an upper substrate positioned right above the positioning sinking assembly, and the upper substrate is provided with a hollowed first avoidance groove for avoiding the lateral passage of the seat frame; the bottom end of the sinking plate is attached to the upper end of the supporting table, and a hollowed-out second avoidance groove exposing the supporting table is formed in the sinking plate; the first avoidance groove, the second avoidance groove and the supporting table are overlapped up and down; the seat frame body is kept laterally, sequentially passes through the first avoidance groove and the second avoidance groove from top to bottom and is embedded in the supporting table.
3. The mesh assembly process of a seat frame according to claim 2, wherein: the positioning clamping and pressing assembly is arranged at the upper end of the upper substrate, and the main positioning clamping plate, the first positioning clamping plate and the second positioning clamping plate are enclosed at the first avoiding groove; the outer peripheral outline of the main positioning clamp plate at the first avoidance groove is matched with the side section outline of the seat frame body; the outer periphery of the main locating clamp plate, which is positioned at the first avoidance groove, comprises a seat part blank holder, a back part blank holder and an arc-shaped blank holder formed between the seat part blank holder and the back part blank holder.
4. A process for assembling a mesh for a seat frame according to claim 3, wherein: the first locating clamping plate is right opposite to one side of the back pressing edge of the main locating clamping plate, the outer periphery of the first locating clamping plate, which is located at the first avoiding groove, is provided with a first pressing edge, and the outline of the first pressing edge is matched with the outline of the back pressing edge and the outline of the partial arc-shaped pressing edge.
5. A process for assembling a mesh for a seat frame according to claim 3, wherein: the second locating clamping plate is right opposite to one side of the seat part pressing edge of the main locating clamping plate, the second locating clamping plate is provided with a second pressing edge at the outer periphery of the first avoiding groove, and the outline of the second pressing edge is matched with the outline of the seat part pressing edge and part of arc-shaped pressing edge.
6. The mesh assembly process of a seat frame according to claim 2, wherein: the main locating clamp plate, the first locating clamp plate and the second locating clamp plate are positioned at the same horizontal height; the main positioning clamping plate is detachably connected with the upper substrate; the first positioning clamp plate and the second positioning clamp plate are configured to be capable of sliding horizontally relative to the upper substrate.
7. The mesh assembly process of a seat frame according to claim 6, wherein: the first positioning clamping plate is provided with a first push-pull assembly capable of driving the first positioning clamping plate to horizontally move, and the first push-pull assembly comprises a first push-pull electric cylinder arranged on the first positioning clamping plate; the second locating clamping plate is provided with a second push-pull assembly capable of driving the second locating clamping plate to horizontally move, and the second push-pull assembly comprises a second push-pull electric cylinder arranged on the second locating clamping plate.
8. The mesh assembly process of a seat frame according to claim 1, wherein: the main locating clamp plate, the first locating clamp plate and the second locating clamp plate are all made of metal plates.
9. The mesh assembly process of a seat frame according to claim 2, wherein: the saddle is arranged at the upper end of the positioning supporting plate and protrudes upwards, and the saddle is provided with a caulking groove which can enable the side end of the seat frame body to be integrally embedded.
10. The mesh assembly process of a seat frame according to claim 1, wherein: in the third step, the outer peripheral outline of the first lower pressing plate is matched with the outline of the back side frame of the seat frame body; a first pressing block protruding downwards is arranged at the end part of the first lower pressing plate along the outline of the outer periphery of the first lower pressing plate, and the first lower pressing plate moves towards the direction of the seat frame body so that the first pressing block is pressed on the upper end of the back side frame of the seat frame body; the outer peripheral outline of the second lower pressing plate is matched with the outline of the seat side frame of the seat frame body; a second pressing block protruding downwards is arranged at the end part of the second lower pressing plate along the outer peripheral outline of the second lower pressing plate; the second lower pressing plate moves towards the direction of the seat frame body to enable the second pressing block to be pressed on the upper end of the seat side frame of the seat frame body.
11. The mesh assembly process of a seat frame according to claim 10, wherein: the saddle, the first pressing block and the second pressing block are all made of plastic materials.
12. The mesh assembly process of a seat frame according to claim 10, wherein: the first lower pressing plate is located right below the first locating clamping plate, and the second lower pressing plate is located right below the second locating clamping plate.
13. The mesh assembly process of a seat frame according to claim 10, wherein: the first lower pressing plate and the second lower pressing plate are both arranged at the upper end of the sinking plate in a sliding manner; and a first lower driving cylinder capable of driving the first lower pressing plate to slide horizontally and a second lower driving cylinder capable of driving the second lower pressing plate to slide horizontally are arranged on the sinking plate.
14. The mesh assembly process of a seat frame according to claim 2, wherein: the fixture also comprises a supporting base positioned at the bottom, and the positioning sinking assembly and the upper substrate are sequentially arranged above the supporting base; a first lifting assembly is arranged between the upper base plate and the sinking plate; a second lifting assembly is arranged between the supporting base and the positioning supporting plate; in the fourth and sixth steps, the first lifting assembly is configured to drive the sinking plate to sink and rise; the second lifting assembly is configured to enable the positioning pallet to descend following the sinking plate and to drive the positioning pallet up and back again.
15. The mesh assembly process of a seat frame according to claim 14, wherein: the first lifting assembly comprises hydraulic cylinders arranged at two sides of the upper base plate in a mirror image mode; the upper end of the hydraulic oil cylinder is fixedly connected with the upper base plate, and a piston rod of the hydraulic oil cylinder is vertically downward and connected with the sinking plate; the hydraulic cylinder is configured to drive the sinking plate to sink and rise.
16. The mesh assembly process of a seat frame according to claim 14, wherein: the second lifting assembly comprises an air cylinder arranged on the supporting base; the air rod at the upper end of each air cylinder is connected to the bottom of the positioning supporting plate; the cylinder is configured to enable the positioning pallet to descend along with the sinking plate and to drive the positioning pallet to ascend and reset again.
17. The mesh assembly process of a seat frame according to claim 14, wherein: longitudinal support guide rods are respectively arranged around the support base, penetrate through the sinking plate and are connected to the upper substrate, and are configured to support the upper substrate; and the sinking plate is in sliding fit with the supporting guide rod.
18. The mesh assembly process of a seat frame according to claim 14, wherein: the support base on still be equipped with upwards wears to establish the slide bar on location layer board and sinking plate in proper order, the location layer board can follow the stable longitudinal slip of this slide bar.
19. The mesh assembly process of a seat frame according to claim 1, wherein: the sinking distance of the seat frame body is between 2 cm and 15 cm.
20. The seat frame mesh assembling process according to claim 19, wherein: the sinking distance of the seat frame body is between 5cm and 10 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211015755.XA CN115385292B (en) | 2022-08-24 | 2022-08-24 | Screen cloth assembling process for seat frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211015755.XA CN115385292B (en) | 2022-08-24 | 2022-08-24 | Screen cloth assembling process for seat frame |
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| CN115385292A CN115385292A (en) | 2022-11-25 |
| CN115385292B true CN115385292B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| JPH0810473A (en) * | 1994-07-04 | 1996-01-16 | Araco Corp | Seat cover mounting apparatus |
| WO1998018714A1 (en) * | 1996-10-25 | 1998-05-07 | Battocchio, Pergentino | Process and apparatus for the automatic covering of components for seating planes or backs |
| CN102525169A (en) * | 2012-01-22 | 2012-07-04 | 无锡研中科技有限公司 | Cloth wrapping machine for seat backrest |
| KR101687665B1 (en) * | 2016-09-09 | 2016-12-19 | 주식회사 기백 | Back frame jig for fixing back mesh of a chair and method for manufacturing back of a chair |
| CN112520683A (en) * | 2020-07-17 | 2021-03-19 | 恒林家居股份有限公司 | Auxiliary device and method for mounting net-shaped cloth on chair frame |
| CN114590768A (en) * | 2022-03-01 | 2022-06-07 | 永艺家具股份有限公司 | Seat frame assembling and forming process |
-
2022
- 2022-08-24 CN CN202211015755.XA patent/CN115385292B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0810473A (en) * | 1994-07-04 | 1996-01-16 | Araco Corp | Seat cover mounting apparatus |
| WO1998018714A1 (en) * | 1996-10-25 | 1998-05-07 | Battocchio, Pergentino | Process and apparatus for the automatic covering of components for seating planes or backs |
| CN102525169A (en) * | 2012-01-22 | 2012-07-04 | 无锡研中科技有限公司 | Cloth wrapping machine for seat backrest |
| KR101687665B1 (en) * | 2016-09-09 | 2016-12-19 | 주식회사 기백 | Back frame jig for fixing back mesh of a chair and method for manufacturing back of a chair |
| CN112520683A (en) * | 2020-07-17 | 2021-03-19 | 恒林家居股份有限公司 | Auxiliary device and method for mounting net-shaped cloth on chair frame |
| CN114590768A (en) * | 2022-03-01 | 2022-06-07 | 永艺家具股份有限公司 | Seat frame assembling and forming process |
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