Automatic sleeving machine for flexible inner core of chair back

Abstract

The utility model provides an automatic sleeving machine for a flexible inner core of a chair back. The automatic sleeving machine comprises a rack, a back sleeve positioning mechanism, an inner core clamping mechanism and a lifting driving mechanism, the back cover positioning mechanism is mounted on the rack and comprises two positioning brackets, and the two positioning brackets are arranged in parallel at an interval and are used for sleeving the chair back cover; the inner core clamping mechanism is positioned above the positioning bracket; the inner core clamping mechanism is used for clamping and fixing the flexible inner core of the chair back; the lifting driving mechanism is installed on the rack, and the inner core clamping mechanism is connected with the lifting driving mechanism and driven by the lifting driving mechanism to move up and down so as to be close to or away from the positioning support; a flexible inner core of the chair back can be inserted into the interval space between the two positioning brackets when the inner core clamping mechanism is close to the positioning brackets. According to the utility model, the back cover positioning mechanism is matched with the inner core clamping mechanism which moves up and down, so that the flexible inner core of the chair back can automatically penetrate through the outer cover of the chair back, the production difficulty is reduced, and the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to an automatic sleeve-feeding machine for flexible inner cores of chair backs. Background Technology

[0002] To improve comfort, some seat backs are made of flexible materials such as latex and memory foam. Flexible seat backs typically consist of a flexible inner core and an outer cover that covers the flexible inner core. During production, the outer cover is usually manually put on the flexible inner core, which is a difficult, time-consuming, and inefficient process due to the large area of ​​the flexible inner core and its elastic deformation. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic seat back flexible inner core insertion machine, including a frame, a back cover positioning mechanism, an inner core clamping mechanism, and a lifting drive mechanism. The back cover positioning mechanism is mounted on the frame and includes two positioning brackets, which are parallel and spaced apart for the seat back cover to be inserted. The inner core clamping mechanism is located above the positioning brackets and is used to clamp and fix the flexible inner core of the seat back. The lifting drive mechanism is mounted on the frame, and the inner core clamping mechanism is connected to and driven by the lifting drive mechanism to move up and down to approach or move away from the positioning brackets. The space between the two positioning brackets is used for the insertion of the flexible inner core of the seat back when the inner core clamping mechanism approaches the positioning brackets.

[0004] In use, expose the reverse side of the chair back cover and place it on the two positioning brackets. With the support of the two positioning brackets, the chair back cover can be opened. Then, clamp one end of the flexible inner core of the chair back into the inner core clamping mechanism. Start the lifting drive mechanism to drive the inner core clamping mechanism to move downward, so that the other end of the flexible inner core of the chair back contacts the reverse side of the chair back cover and inserts into the gap between the two positioning brackets. As the flexible inner core of the chair back moves downward, it causes the chair back cover to fold inward and gradually cover the flexible inner core of the chair back. Afterward, the inner core clamping mechanism moves upward, which can move the flexible inner core of the chair back covered with the chair back cover out of the positioning brackets.

[0005] This invention utilizes a back cover positioning mechanism in conjunction with an up-and-down movable inner core clamping mechanism to automatically attach the flexible inner core of the chair back to the back cover, thereby reducing production difficulty and improving efficiency. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of this utility model.

[0007] Figure 2 This is a schematic diagram of the structure of the concealed foot switch of this utility model.

[0008] Figure 3 This is a schematic diagram of the downward movement of the inner core clamping mechanism of this utility model.

[0009] Figure 4 This is a schematic diagram of the inner core clamping mechanism of this utility model.

[0010] Figure 5 This is an exploded view of the back sleeve positioning mechanism of this utility model.

[0011] Figure 6 This is an exploded view of the assembly structure of the frame and back sleeve positioning mechanism of this utility model.

[0012] Figure 7 and Figure 8 This is a schematic diagram illustrating the use of this utility model. Detailed Implementation

[0013] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution:

[0014] See appendix Figure 1-8 An automatic backrest flexible inner core sleeve attaching machine includes a frame 1, a back cover positioning mechanism 2, an inner core clamping mechanism 3, and a lifting drive mechanism 4.

[0015] The back cover positioning mechanism 2 is mounted on the frame 1. The back cover positioning mechanism 2 includes two positioning brackets 21, which are parallel and spaced apart to allow the chair back cover 7 to be fitted.

[0016] The inner core clamping mechanism 3 is located above the positioning bracket 21; the inner core clamping mechanism 3 is used to clamp and fix the flexible inner core 6 of the chair back;

[0017] The lifting drive mechanism 4 is mounted on the frame 1. The inner core clamping mechanism 3 is connected to the lifting drive mechanism 4 and is driven by the lifting drive mechanism 4 to move up and down to approach or move away from the positioning bracket 21. The space between the two positioning brackets 21 is used to allow the flexible inner core 6 of the chair back to be inserted when the inner core clamping mechanism 3 approaches the positioning bracket 21, so as to achieve automatic sleeve insertion.

[0018] The inner core clamping mechanism 3 includes a lifting seat 31 and a fixed block 32, a movable block 33, and a telescopic cylinder 34 mounted on the lifting seat 31. The fixed block 32 is fixed on the lifting seat 31, and the movable block 33 is arranged opposite to the fixed block 32. An installation position 35 for the flexible inner core 6 of the chair back is provided between the movable block 33 and the fixed plate. The top side of the installation position 35 is provided with a limiting plate 312 for abutting against the flexible inner core 6 of the chair back. The movable block 33 is connected to the telescopic cylinder 34 and is driven by the telescopic cylinder 34 to move laterally to move closer to or away from the fixed block 32.

[0019] This technical solution uses the cooperation of the fixed block 32 and the movable block 33 to clamp the two sides of one end of the flexible inner core 6 of the chair back for fixation. The contact area is small, which does not affect the wearing of the cover. The structure is simple and easy to implement.

[0020] The inner core clamping mechanism 3 also includes a foot switch 5; the foot switch 5 is electrically connected to the telescopic cylinder 34 via a wire 51 to control the opening and closing of the telescopic cylinder 34.

[0021] During production, it is usually necessary to lift the flexible inner core 6 of the chair back with both hands and place it into the installation position 35. This technical solution uses a foot switch 5 to control the inner core clamping mechanism 3. When the flexible inner core 6 of the chair back is placed into the installation position 35, stepping on the switch will activate the inner core clamping mechanism 3 to clamp it. A single person can quickly complete the operation.

[0022] The lifting drive mechanism 4 is a lifting cylinder. The cylinder body 41 of the lifting cylinder is fixed on the frame 1, and the telescopic rod 42 of the lifting cylinder is fixedly connected to the lifting seat 31 of the inner core clamping mechanism 3.

[0023] The frame 1 is provided with a guide rod 13, and the lifting seat 31 is sleeved on the guide rod 13 to move up and down along the guide rod 13. Specifically, the lifting seat 31 is provided with a guide hole 311 for the guide rod 13 to pass through.

[0024] The frame 1 includes two columns 11 and a crossbeam 12 connecting the upper ends of the two columns 11. The inner core clamping mechanism 3 is located below the crossbeam 12, and the initial position of the inner core clamping mechanism 3 is against the crossbeam 12. Two guide rods 13 are provided, and the two guide rods 13 are respectively provided on the two columns 11.

[0025] In this technical solution, the inner core clamping mechanism 3 is confined within the frame 1 during movement and is guided to move smoothly up and down by the guide rod 13.

[0026] The back cover positioning mechanism 2 also includes a bracket 22; the bracket 22 is provided with a connecting seat 23, the connecting seat 23 is provided with a vertical insertion hole 231, the lower end of the positioning bracket 21 is inserted into the insertion hole 231, the outer wall of the connecting seat 23 is provided with a fixing screw 232, the fixing screw 232 passes through the insertion hole 231 and abuts against the lower end of the positioning bracket 21.

[0027] The positioning bracket 21 of this technical solution is fixed by screws, which is convenient for disassembly and assembly. Different shapes of positioning brackets 21 can be replaced according to the shape of the chair back cover 7, making it widely applicable.

[0028] In this embodiment, the positioning bracket 21 is arch-shaped.

[0029] The bracket 22 includes a branch pipe 221. The frame 1 is provided with an adjustment seat 14. The adjustment seat 14 is provided with a horizontal adjustment hole 141. The branch pipe 221 is horizontally inserted into the adjustment hole 141 and can slide along the adjustment hole 141 to adjust the horizontal position of the back sleeve positioning mechanism 2 to correspond with the inner core clamping mechanism 3. The adjustment seat 14 is provided with an adjustment screw 142 for fixing the position of the branch pipe 221 after sliding. The adjustment screw 142 passes through the adjustment hole 141 and connects to the branch pipe 221.

[0030] In this embodiment, both the adjusting seat 14 and the branch pipe 221 are provided with screw holes for the adjusting screw 142 to pass through.

[0031] In this embodiment, two branch pipes 221 and two adjusting seats 14 are provided respectively, and the cross-section of the branch pipe 221 is rectangular.

[0032] The bottom of the frame 1 is equipped with casters 15, which facilitates the transfer of equipment to different workstations and makes it convenient and flexible to use.

[0033] When using, such as Figure 7 As shown, the reverse side of the chair back cover 7 is exposed and placed on the two positioning brackets 21. Supported by the two positioning brackets 21, the chair back cover 7 can be opened. Then, one end of the flexible inner core 6 of the chair back is clamped and fixed in the inner core clamping mechanism 3. The lifting drive mechanism 4 is activated to drive the inner core clamping mechanism 3 downward, so that the other end of the flexible inner core 6 contacts the reverse side of the chair back cover 7 and inserts into the space between the two positioning brackets 21. As the flexible inner core 6 moves downward, it causes the chair back cover 7 to fold inward and gradually cover the flexible inner core 6 of the chair back. Figure 8 As shown; then the inner core clamping mechanism 3 moves upward, which can drive the flexible inner core 6 of the chair back, which is covered by the chair back cover 7, to move out of the positioning bracket 21.

[0034] This technical solution uses the back cover positioning mechanism 2 in conjunction with the up-and-down movable inner core clamping mechanism 3 to enable the flexible inner core 6 of the chair back to automatically put on the chair back cover 7, thereby reducing production difficulty and improving efficiency.

[0035] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. An automatic sleeve-feeding machine for flexible inner cores of chair backs, characterized in that: Includes frame, back sleeve positioning mechanism, inner core clamping mechanism and lifting drive mechanism; The back cover positioning mechanism is mounted on the frame. The back cover positioning mechanism includes two positioning brackets, which are parallel and spaced apart to allow the chair back cover to be fitted. The inner core clamping mechanism is located above the positioning bracket; the inner core clamping mechanism is used to clamp and fix the flexible inner core of the chair back. The lifting drive mechanism is mounted on the frame. The inner core clamping mechanism is connected to the lifting drive mechanism and is driven by the lifting drive mechanism to move up and down to approach or move away from the positioning bracket. The space between the two positioning brackets is used to allow the flexible inner core of the chair back to be inserted when the inner core clamping mechanism approaches the positioning bracket.

2. The automatic sleeve-feeding machine for flexible inner core of chair back as described in claim 1, characterized in that: The inner core clamping mechanism includes a lifting seat and a fixed block, a movable block, and a telescopic cylinder installed on the lifting seat; the fixed block is fixed on the lifting seat, the movable block is arranged opposite to the fixed block, and an installation position for the flexible inner core of the chair back is provided between the movable block and the fixed plate for the movable block to enter and exit; the movable block is connected to the telescopic cylinder and is driven by the telescopic cylinder to move laterally to move closer to or away from the fixed block.

3. The automatic seat back flexible inner core fitting machine according to claim 2, characterized in that: The inner core clamping mechanism also includes a foot switch; the foot switch is electrically connected to the telescopic cylinder to control the opening and closing of the telescopic cylinder.

4. The automatic seat back flexible inner core fitting machine according to claim 3, characterized in that: The lifting drive mechanism is a lifting cylinder. The cylinder body of the lifting cylinder is fixed on the frame, and the telescopic rod of the lifting cylinder is fixedly connected to the lifting seat of the inner core clamping mechanism.

5. The automatic seat back flexible inner core fitting machine according to claim 4, characterized in that: The frame is provided with a guide rod, and the lifting seat sleeve is on the guide rod to move up and down along the guide rod.

6. The automatic seat back flexible inner core fitting machine according to claim 5, characterized in that: The frame includes two columns and a crossbeam connecting the upper ends of the two columns. The inner core clamping mechanism is located below the crossbeam, and the initial position of the inner core clamping mechanism is against the crossbeam. There are two guide rods, which are respectively located on the two columns.

7. The automatic seat back flexible inner core fitting machine according to claim 6, characterized in that: The back cover positioning mechanism also includes a bracket; the bracket is provided with a connecting seat, the connecting seat is provided with a vertical insertion hole, the lower end of the positioning bracket is inserted into the insertion hole, the outer wall of the connecting seat is provided with a fixing screw, the fixing screw passes through the insertion hole and abuts against the lower end of the positioning bracket.

8. The automatic seat back flexible inner core fitting machine according to claim 7, characterized in that: The bracket includes a branch pipe, and the frame is provided with an adjustment seat. The adjustment seat is provided with a horizontal adjustment hole, and the branch pipe is horizontally inserted into the adjustment hole and can slide along the adjustment hole. The adjustment seat is provided with an adjustment screw for fixing the position of the branch pipe after sliding. The adjustment screw passes through the adjustment hole and connects to the branch pipe.

9. The automatic seat back flexible inner core attaching machine according to any one of claims 6-8, characterized in that: The bottom of the frame is equipped with casters.

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