Rubber band pulling machine

Abstract

The utility model relates to a rubber band pulling machine which comprises a machine frame, a workpiece table, a fixing mechanism and a rubber band tensioning mechanism, the workpiece table, the fixing mechanism and the rubber band tensioning mechanism are arranged on the machine frame, and the workpiece table is fixedly arranged at the upper end of the machine frame and used for positioning and supporting a workpiece; the fixing mechanism is mounted on the workpiece table and used for locking the workpiece on the workpiece table; the rubber band tensioning mechanism is installed on the machine frame and comprises two rubber band tensioning assemblies used for tensioning the two rubber band sets respectively, one end of each rubber band set is fixed to the end, away from the corresponding rubber band tensioning assembly, of the workpiece, the other end of each rubber band set is arranged on the corresponding rubber band tensioning assembly, and the two rubber band tensioning assemblies are perpendicularly distributed with the workpiece as the center. According to the scheme, the seat frame is locked on the workpiece table through the fixing mechanism, and the workpiece can be prevented from loosening; one ends of the multiple rubber bands are nailed on the workpiece, then the two rubber band tensioning assemblies are used for stretching and tensioning the two rubber bands at the same time, a worker nails the other ends of the multiple rubber bands on the workpiece, the rubber bands are cut off along the edge of the workpiece, time and labor are saved, and the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture processing equipment technical field especially relates to a pull elastic band machine. BACKGROUND

[0002] The existing furniture such as seat frame of seat can set up elastic band, can play the role of shock absorption and buffering, reduces the pressure and fatigue feeling caused by long time sitting, and promotes the comfort.

[0003] The arrangement of elastic band on the seat frame needs to be stretched and tightened, so that better and effective buffering effect is played. The elastic band installation on the existing seat frame is usually manually installed, not only the seat frame needs to be fixed, but also one by one to stretch and tighten the elastic band, and multiple people operation can be completed, which is time-consuming and laborious. SUMMARY

[0004] In order to solve the above problems, the utility model aims at providing a pull elastic band machine, which can automatically lock the workpiece on the rack through the fixing mechanism, and after fixing one end of the plurality of elastic bands on the workpiece, the plurality of elastic bands can be automatically stretched and tightened through the elastic band tensioning mechanism of the pull elastic band machine, and then the elastic band fixing work can be completed by one person through manual cutting, which saves time and labor, improves efficiency and reduces labor cost.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A pull elastic band machine, characterized in that: comprising rack, workpiece table, fixing mechanism and elastic band tensioning mechanism arranged on the rack, wherein,

[0007] The workpiece table is fixedly arranged on the upper end of the rack and is used for positioning and supporting the workpiece.

[0008] The fixing mechanism is installed on the workpiece table and is used for locking the workpiece on the workpiece table.

[0009] The elastic band tensioning mechanism is installed on the rack and comprises two groups of elastic band tensioning assemblies for respectively tensioning two groups of elastic band groups, one end of the elastic band group is fixed on the end of the workpiece away from the elastic band tensioning assembly, the other end is arranged on the elastic band tensioning assembly, and the two groups of elastic band tensioning assemblies are vertically distributed with the workpiece as the center.

[0010] As preferred, the workpiece table comprises a support plate fixed on the upper end of the rack and a positioning frame fixed on the upper end of the support plate, the side wall profile of the positioning frame is the same as the lower inner wall profile of the workpiece, and the workpiece is adapted to be sleeved outside the positioning frame.

[0011] As preferred, the lower part of the workpiece forms a sleeve frame, the height of the sleeve frame is higher than the positioning frame; the fixing mechanism comprises two groups of fixing components arranged inside the positioning frame, the fixing component comprises a mounting block fixed on the support plate and a driving air cylinder arranged on the mounting block, a connecting block is arranged on the output end of the driving air cylinder, the outer end of the connecting support is fixedly provided with a pressing plate, the pressing plate can be extended to press the upper end of the sleeve frame under the action of the driving air cylinder.

[0012] As preferred, the two pressing plates are respectively located below the fixed end of the two groups of rubber bands and the workpiece, the extension direction of the output end of the two driving air cylinders is the same as the direction in which the rubber bands are pulled tight.

[0013] As preferred, the fixing component further comprises a parallel guide rod slidably arranged on the mounting block, the outer end of the parallel guide rod is fixedly connected with the connecting block.

[0014] As preferred, the rubber band tensioning component comprises a mounting plate, a support frame fixedly arranged at the lower end of the mounting plate and a pushing air cylinder, the pushing air cylinder is fixedly arranged in the rack, the bottom of the support frame is provided with a connecting support extending into the rack, the connecting support is fixedly connected with the output end of the pushing air cylinder; a plurality of rubber band guide wheels are arranged on the mounting plate, the rubber band is wound on the rubber band guide wheels; a plurality of fixing blocks are fixedly arranged at the upper end of the mounting plate, the fixing blocks form a guide groove for the rubber band to pass through, an end plate is arranged at the upper end of the guide groove, a pressing air cylinder is arranged on the end plate, the end plate is fixedly connected with the fixing blocks through connecting columns, a pressing block is fixedly arranged on the output end of the pressing air cylinder, and a recess is arranged on the bottom surface of the mounting plate and matched with the pressing block to press the rubber band.

[0015] As preferred, the upper end of the rack is provided with a sliding rail, and the lower end of the support frame is provided with a sliding block matched with the sliding rail.

[0016] As preferred, the side wall of the fixing block is provided with a clamping groove matched with the pressing block.

[0017] The utility model discloses the above-mentioned technical scheme has the following beneficial effects: after the staff positions the workpiece on the workpiece table, the workpiece can be locked on the rack through the fixing mechanism, the workpiece can be prevented from loosening, labor is saved, and manual labor is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a kind of rubber band machine's three-dimensional structure schematic view.

[0019] Figure 2 It is a side structure schematic diagram of a rubber band pulling machine.

[0020] Figure 3 It is a mounting schematic diagram of a seat frame on a workpiece table.

[0021] Figure 4 It is a mounting schematic diagram of a fixing mechanism on a workpiece table.

[0022] Figure 5 It is a three-dimensional structure schematic diagram of a rubber band tensioning mechanism.

[0023] Figure 6 It is a mounting schematic diagram of a pressing cylinder and a pressing block.

[0024] Figure 7 It is a mounting schematic diagram of a groove on a mounting plate.

[0025] Figure 8 It is a mounting schematic diagram of a clamping groove on a fixing block. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0028] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0029] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "fix", and the like terms should be understood in broad sense, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0030] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0031] As Figures 1-8 A rubber band pulling machine shown in the figure, including rack 1 and the workpiece table 2, fixed mechanism and rubber band tensioning mechanism arranged on the rack 1, wherein,

[0032] Workpiece table 2, fixedly arranged on the upper end of rack 1, for positioning and supporting workpiece 100;

[0033] Fixed mechanism, installed on the workpiece table 2, for locking workpiece 100 on the workpiece table 2;

[0034] Rubber band tensioning mechanism, installed on the rack 1, including two groups of rubber band tensioning assemblies for respectively tensioning two groups of rubber band groups, one end of the rubber band group is fixed on the end of the workpiece 100 away from the rubber band tensioning assembly, the other end is arranged on the rubber band tensioning assembly, and the two groups of rubber band tensioning assemblies are vertically distributed with the workpiece 100 as the center.

[0035] In the above scheme, the worker can position and support the workpiece (seat frame in the figure) through the workpiece table, and then lock the seat frame on the workpiece table through the fixed mechanism, so that the workpiece can be prevented from loosening, labor is saved, and manual labor is reduced;One end of the plurality of rubber bands is nailed on the workpiece, and then the two groups of rubber bands are simultaneously stretched and tensioned through the two groups of rubber band tensioning assemblies, the other end of the plurality of rubber bands is nailed on the workpiece by the worker, and the rubber bands are cut along the edge of the workpiece, the rubber band installation work is completed, a single person can complete the rubber band fixing work, time and labor are saved, and labor cost is reduced.

[0036] As Figures 3-4As shown, the workpiece table 2 includes a support plate 3 fixed on the upper end of the rack 1 and a positioning frame 4 fixed on the upper end of the support plate 3, the side wall profile of the positioning frame 4 is the same as the inner wall profile of the lower part of the workpiece 100, and the workpiece 100 is fitted outside the positioning frame 4. In this technical solution, the staff can position the seat frame on the workbench through the positioning frame on the workpiece table, which can prevent the seat frame from shaking circumferentially and is very convenient.

[0037] Further, the lower part of the workpiece 100 forms a sleeve frame 5, the height of the sleeve frame 5 is higher than that of the positioning frame 4; the fixing mechanism includes two groups of fixing components arranged on the inner side of the positioning frame 4, the fixing component includes a mounting block 6 fixed on the support plate 3 and a driving cylinder 7 arranged on the mounting block 6, a connecting block 8 is arranged on the output end of the driving cylinder 7, the outer end of the connecting bracket 14 is fixedly provided with a pressing plate 9, and the pressing plate 9 can be extended to press the upper end of the sleeve frame 5 under the action of the driving cylinder 7. In this technical solution, the driving cylinder can press the lower sleeve frame of the seat frame, which can effectively prevent the seat frame from shaking up and down and lock the seat frame on the workpiece table.

[0038] Further, the two pressing plates 9 are respectively located below the fixed end of the two groups of rubber bands and the workpiece 100, and the extension direction of the output end of the two driving cylinders 7 is the same as the direction in which the rubber band is pulled tight; in this way, when the rubber band on the seat frame is pulled, the stressed end below is pressed by the pressing plate, so that the seat frame can be more stably locked on the workpiece table.

[0039] Further, the fixing component further includes a parallel guide rod 10 slidably arranged on the mounting block 6, and the outer end of the parallel guide rod 10 is fixedly connected with the connecting block 8. In this technical solution, the parallel guide rod makes the driving cylinder push the pressing plate to move back and forth more stably, and improves the connection structure strength of the pressing plate to prevent the pressing plate from not being pressed when the rubber band is pulled.

[0040] As shown in the figure, Figures 5-8 The rubber band tensioning assembly includes a mounting plate 11, a support frame 12 fixed on the lower end of the mounting plate 11, and a pushing cylinder 13 fixedly installed in the rack 1, the bottom of the support frame 12 is provided with a connecting bracket 14 extending into the rack 1, and the connecting bracket 14 is fixedly connected with the output end of the pushing cylinder 13; a plurality of rubber band guide wheels 15 are arranged on the mounting plate 11, and the rubber band is wound on the rubber band guide wheels 15; a plurality of fixed blocks 17 are fixedly arranged on the upper end of the mounting plate 11, and a guide groove 18 for the rubber band to pass through is formed between the fixed blocks 17, an end plate 22 is arranged at the upper end of the guide groove 18, a pressing cylinder 24 is arranged on the end plate 22, the end plate 22 is fixedly connected with the fixed blocks 17 through a connecting column 23, a pressing block 19 is fixedly installed on the output end of the pressing cylinder 24, and a recess 25 for pressing the rubber band in cooperation with the pressing block 19 is arranged on the bottom surface of the mounting plate 11.

[0041] In the technical scheme, one end of each of the plurality of rubber bands 200 is nailed to the seat frame, and the other end is arranged on the rubber band guide wheel of the rubber band tensioning assembly. Each rubber band 200 is arranged in a corresponding guide groove. When the push cylinder drives the support frame and the mounting plate to move horizontally, the rubber band is pulled out of the rubber band guide wheel and straightened. The drive compression cylinder drives the pressing block to press the rubber band in the groove, the rubber band is pulled flat, the push cylinder continues to drive the mounting plate and the support frame to move away, and the plurality of rubber bands are stretched and tensioned on the workpiece surface. The worker nails the other end of the plurality of rubber bands that are tensioned to the workpiece, cuts off the rubber bands along the edge of the workpiece, and completes the rubber band installation work. One person can complete the operation, save time, and reduce labor cost.

[0042] In addition, in order to maintain the stability of the push cylinder, a fixed support 300 is arranged in the rack to reinforce the push cylinder.

[0043] Further, the upper end of the rack 1 is provided with a sliding rail 20, and the lower end of the support frame 12 is provided with a sliding block 21 matched with the sliding rail 20. In the technical scheme, the sliding block on the support frame is matched with the sliding rail on the rack to improve the stability of the operation of the rubber band tensioning assembly and improve the straightening effect of the rubber band.

[0044] As shown in Figure 8 The side wall of the fixed block 17 is provided with a clamping groove 26 matched with the pressing block 19. In the technical scheme, the clamping groove is matched with the pressing block to prevent the pressing block from shaking, improve the up-down operation reliability of the pressing block, and ensure the pressing effect on the rubber band.

[0045] In the specific embodiment, the existing rubber band pulling operation on the workpiece needs to be operated by multiple people, which is time-consuming and laborious. In the above scheme, the workpiece can be locked on the rack by the fixing mechanism, which can prevent the workpiece from loosening, save labor, and reduce labor. One end of the plurality of rubber bands is nailed to the workpiece, the other end of the plurality of rubber bands on the mounting plate is driven away by the push cylinder of the rubber band tensioning mechanism of the rubber band pulling machine, so that the plurality of rubber bands are straightened, the rubber band is pressed by the pressing block driven by the compression cylinder, the push cylinder continues to drive the mounting plate to move away, the plurality of rubber bands are pulled flat and stretched and tensioned on the workpiece surface, the worker nails the other end of the plurality of rubber bands that are tensioned to the workpiece, cuts off the rubber bands along the edge of the workpiece, and completes the rubber band installation work. One person can complete the operation, save time, and reduce labor cost.

[0046] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model without departing from the principles and purposes of the utility model.

Claims

1. A rubber band stretching machine, characterized in that: It includes a frame (1) and a workpiece table (2) mounted on the frame (1), a fixing mechanism, and a rubber band tensioning mechanism, wherein, The workpiece table (2) is fixedly set on the upper end of the frame (1) and is used to position and support the workpiece (100). A fixing mechanism is installed on the workpiece table (2) to lock the workpiece (100) on the workpiece table (2); The rubber band tensioning mechanism is installed on the frame (1) and includes two sets of rubber band tensioning components for tensioning two sets of rubber bands respectively. One end of the rubber band is fixed on the end of the workpiece (100) away from the rubber band tensioning component, and the other end is set on the rubber band tensioning component. The two sets of rubber band tensioning components are vertically distributed with the workpiece (100) as the center.

2. The rubber band stretching machine according to claim 1, characterized in that: The workpiece stage (2) includes a support plate (3) fixed to the upper end of the frame (1) and a positioning frame (4) fixed to the upper end of the support plate (3). The side wall contour of the positioning frame (4) is the same as the lower inner wall contour of the workpiece (100), and the workpiece (100) is adapted to be mounted on the outside of the positioning frame (4).

3. The rubber band stretching machine according to claim 2, characterized in that: The lower part of the workpiece (100) forms a sleeve frame (5), and the height of the sleeve frame (5) is higher than that of the positioning frame (4). The fixing mechanism includes two sets of fixing components set inside the positioning frame (4). The fixing components include a mounting block (6) fixed on the support plate (3) and a driving cylinder (7) set on the mounting block (6). The output end of the driving cylinder (7) is provided with a connecting block (8), and the outer end of the connecting bracket (14) is fixed with a pressure plate (9). Under the action of the driving cylinder (7), the pressure plate (9) can extend and press the upper end of the sleeve frame (5).

4. A rubber band stretching machine according to claim 3, characterized in that: Two pressure plates (9) are located below the fixed ends of the two sets of rubber bands and the workpiece (100), respectively. The extension and retraction directions of the output ends of the two drive cylinders (7) are the same as the direction in which the rubber bands are tightened.

5. A rubber band stretching machine according to claim 3, characterized in that: The fixing component also includes a parallel guide rod (10) that is slidably disposed on the mounting block (6), and the outer end of the parallel guide rod (10) is fixedly connected to the connecting block (8).

6. A rubber band stretching machine according to claim 1, characterized in that: The elastic band tensioning assembly includes a mounting plate (11), a support frame (12) fixed to the lower end of the mounting plate (11), and a push cylinder (13). The push cylinder (13) is fixedly installed inside the mounting frame (1). The bottom of the support frame (12) is provided with a connecting bracket (14) extending into the frame (1). The connecting bracket (14) is fixedly connected to the output end of the push cylinder (13). The mounting plate (11) is provided with multiple elastic band guide wheels (15), and elastic bands are wound on the elastic band guide wheels (15). (11) has multiple fixed blocks (17) fixed at its upper end. A guide groove (18) is formed between the fixed blocks (17) for the rubber band to pass through. An end plate (22) is provided at the upper end of the guide groove (18). A pressing cylinder (24) is provided on the end plate (22). The end plate (22) is fixedly connected to the fixed block (17) through a connecting column (23). The pressing block (19) is fixedly installed on the output end of the pressing cylinder (24). The bottom surface of the mounting plate (11) has a groove (25) that cooperates with the pressing block (19) to press the rubber band.

7. A rubber band stretching machine according to claim 6, characterized in that: The upper end of the frame (1) is provided with a slide rail (20), and the lower end of the support frame (12) is provided with a slider (21) that cooperates with the slide rail (20).

8. A rubber band stretching machine according to claim 7, characterized in that: The side wall of the fixing block (17) is provided with a slot (26) that cooperates with the pressure block (19).

Images