Pressing and sewing device and pocket opening machine

Abstract

The utility model provides a material pressing sewing device and a pocket opening machine, and belongs to the technical field of sewing equipment. The material pressing and sewing device comprises a mounting base, a movable upper material fixing piece is arranged on the mounting base, a mounting block and a driving piece for driving the mounting block to move are further arranged on the mounting base, one end and the other end of the upper material fixing piece are connected with a first connecting rod and a second connecting rod respectively, and the first connecting rod and the second connecting rod are both fixed to the mounting block. According to the material pressing and sewing device, the driving piece is adopted to drive the upper material fixing piece to move in parallel, stability is good, the upper material fixing piece can be well matched with the lower material fixing piece, the situation that one side of a sewn pocket is large and the other side of the sewn pocket is small is avoided, and under the condition that the structure is simplified, the sewing quality of the pocket is well guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewing equipment technical field relates to a press material sewing device and open bag machine. BACKGROUND

[0002] When opening a bag, a press material sewing device or a folding device is needed, and the folding device folds the cloth. For the related structure of the folding clamp, please refer to the folding device of the open bag machine provided in the patent document with the application number 202321784849.3.

[0003] The press material sewing device includes an upper material fixing piece, a lower material fixing piece, a left material fixing piece, and a right material fixing piece. In the prior art, the upper material fixing piece (or the lower material fixing piece) is driven by two cylinders, and each cylinder drives one end and the other end of the upper material fixing piece (or the lower material fixing piece) to move. The disadvantage is that more driving sources are used, and when the piston rods of the cylinders move inconsistently, the upper material fixing piece (or the lower material fixing piece) moves obliquely, which easily causes the folded pocket cloth to fall off or the sewn pocket to be larger on one side and smaller on the other side. SUMMARY

[0004] The utility model provides a press material sewing device in view of the above -mentioned problem that the prior art exists, the technical problem that the utility model wants to solve is: how to make the upper material fixing piece parallel movement.

[0005] The purpose of the utility model can be realized through the following technical schemes:

[0006] A press material sewing device, comprising a mounting seat, the mounting seat is provided with a movable upper material fixing piece, characterized in that the mounting seat is further provided with a mounting block and a driving member for driving the mounting block to move, one end and the other end of the upper material fixing piece are respectively connected with connecting rod one and connecting rod two, and the connecting rod one and the connecting rod two are fixed on the mounting block.

[0007] The driving member of the press material sewing device drives the mounting block to move, and the mounting block drives the connecting rod one and the connecting rod two to move synchronously, and the connecting rod one and the connecting rod two drive the upper material fixing piece to move in parallel at the same time.

[0008] The press material sewing device adopts one driving member to drive the upper material fixing piece to move in parallel, has good stability, avoids the inclination of the upper material fixing piece in the moving process, and enables the upper material fixing piece to cooperate well with the lower material fixing piece.

[0009] As an embodiment, the connecting rod one and the connecting rod two are fixed on the mounting block through the connecting arm respectively.

[0010] In the pressing material sewing device, the movable lower material positioning piece is arranged on the mounting base, one end and the other end of the lower material positioning piece are respectively connected with connecting rod three and connecting rod four, swing rods one and two are hingedly connected on the mounting base, one end of the swing rod one is movably connected with the connecting rod one, the other end of the swing rod one is movably connected with the connecting rod three, one end of the swing rod two is movably connected with the connecting rod two, the other end of the swing rod two is movably connected with the connecting rod four.

[0011] Under the driving of the driving member, when the mounting block drives the connecting rod one and the connecting rod two to move synchronously, the connecting rod one drives the swing rod one to swing, the swing rod one drives the connecting rod three to move, at the same time, the connecting rod two drives the swing rod two to swing, the swing rod two drives the connecting rod four to move, thus, the connecting rod three and the connecting rod four also move synchronously, the connecting rod three and the connecting rod four simultaneously drive the lower material positioning piece to move in parallel.

[0012] The structure only uses one driving source to drive the upper material positioning piece and the lower material positioning piece to move in parallel towards or away from each other, to avoid the folded pocket cloth from falling off or the sewn pocket from being large on one side and small on the other side, and to ensure the sewing quality of the pocket under the condition of simplifying the structure.

[0013] In the pressing material sewing device, the middle part of the swing rod one is hingedly connected on the mounting base, one end and the other end of the swing rod one are respectively provided with sliding grooves one, the connecting rod one and the connecting rod three are respectively provided with sliding blocks, and the sliding blocks are respectively slidably connected in the corresponding sliding grooves one.

[0014] The sliding blocks and the corresponding sliding grooves one form a sliding structure, so that the swing rod one is movably connected with the connecting rod one and the connecting rod three (specifically, the swing rod one swings and also moves relative to the connecting rod one and the connecting rod two), so that when the connecting rod one moves, the connecting rod three is driven to move through the swing of the swing rod one.

[0015] In the pressing material sewing device, the middle part of the swing rod two is hingedly connected on the mounting base, one end and the other end of the swing rod two are respectively provided with sliding grooves one, the connecting rod two and the connecting rod four are respectively provided with sliding blocks, and the sliding blocks are respectively slidably connected in the corresponding sliding grooves one.

[0016] The sliding blocks and the corresponding sliding grooves one form a sliding structure, so that the swing rod two is movably connected with the connecting rod two and the connecting rod four (specifically, the swing rod two swings and also moves relative to the connecting rod two and the connecting rod four), so that when the connecting rod two moves, the connecting rod four is driven to move through the swing of the swing rod two.

[0017] In the above-mentioned pressure material sewing device, a plurality of sliding grooves two and a plurality of sliding grooves three are formed on the mounting seat, the connecting rod one and the connecting rod two are respectively slidably connected in the corresponding sliding grooves two, and the connecting rod three and the connecting rod four are respectively slidably connected in the corresponding sliding grooves three.

[0018] The sliding grooves two guide the connecting rod one and the connecting rod two respectively, and the sliding grooves three guide the connecting rod three and the connecting rod four respectively, which greatly improves the stability of the movement of each connecting rod, makes the transmission more accurate, and enables the upper material fixing piece and the lower material fixing piece to move more stably and in parallel, so that the sewed pocket meets the size requirements.

[0019] In the above-mentioned pressure material sewing device, the driving member includes a cylinder one, and a piston rod of the cylinder one is fixed with the mounting block.

[0020] As other embodiments, the cylinder one can also be replaced by an oil cylinder or a linear motor or a screw motor.

[0021] In the above-mentioned pressure material sewing device, a pressure material piece is further included, one side of the pressure material piece is fixed on the bottom of the mounting seat, more than one screw is arranged on the other side of the pressure material piece, the screws extend from the top of the mounting seat, one side and the other side of the driving member are respectively provided with a cylinder two, a piston rod of the cylinder two is respectively provided with a connecting rod five, the connecting rod fives are provided with a connecting piece, the connecting piece is provided with more than one positioning hole, and the screws are respectively located in the corresponding positioning holes and have a spacing with the corresponding positioning holes.

[0022] One side of the pressure material piece is fixed on the bottom of the mounting seat 1, after the pressure material piece compresses the cloth, under the driving of the cylinder two, the two connecting rod fives drive the connecting piece to move, so that the positioning hole on the connecting piece approaches the screw until the inner wall of the positioning hole abuts against the screw, at this time, the positioning hole locks the screw, thereby fixing the other side of the pressure material piece. This structure fixes the pressure material piece in two directions, and when compressing thick cloth, the pressure material piece can be compressed tightly without insufficient elastic force.

[0023] In the above-mentioned pressure material sewing device, a support is arranged on the mounting seat, a connecting seat and a driving source for driving the connecting seat to move up and down are arranged on the support, a pressure block one and a pressure block two are arranged on the connecting seat, rubber strips are respectively arranged on the bottoms of the pressure block one and the pressure block two, a gap slot is arranged on the mounting seat and extends through the mounting seat, and the pressure block one and the pressure block two can extend into the gap slot and abut against the pressure material piece.

[0024] In the above-mentioned pressure material sewing device, a cover plate is arranged on the top of the mounting seat, and the cover plate is located above the upper material fixing piece and the lower material fixing piece.

[0025] The cover plate covers most of the connecting rods and hides the connecting rods basically, and the connecting rods and other components on the mounting base are protected well.

[0026] The utility model also provides a bag opening machine, the bag opening machine includes any kind of pressure material sewing device above.

[0027] Compared with the prior art, the utility model has the advantages as follows:

[0028] 1. The pressure material sewing device adopts one driving element to drive the upper fixed material sheet to move in parallel, has good stability, avoids the upper fixed material sheet from tilting during movement, and enables the upper fixed material sheet to cooperate with the lower fixed material sheet well.

[0029] 2. The pressure material sewing device only adopts one driving source, can enable the upper fixed material sheet and the lower fixed material sheet to move in parallel towards each other or in opposite directions, avoids the folded pocket cloth from falling off or the sewn pocket from being large on one side and small on the other side, and guarantees the sewing quality of the pocket well under the condition of simplifying the structure. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure schematic view of the pressure material sewing device in example one;

[0031] Figure 2 It is an enlarged view of A part in Figure 1

[0032] Figure 3 It is an enlarged view of B part in Figure 1

[0033] Figure 4 It is a structure schematic view of the mounting base Figure 1

[0034] Figure 5 It is a structure schematic view of the mounting base Figure 2

[0035] Figure 6 It is a structure schematic view of the mounting base provided with the cover plate;

[0036] Figure 7 It is a structure schematic view of the pressure material sewing device in example two;

[0037] Figure 8 It is a structure schematic view of the pressing block one and the pressing block two.

[0038] ​​​​In the diagram: 1 Mounting base, 2 Upper fixed plate, 3 Link 1, 4 Link 2, 5 Mounting block, 6 Drive component, 7 Lower fixed plate, 8 Link 3, 9 Link 4, 10 Swing rod 1, 11 Swing rod 2, 12 Slide groove 1, 13 Slider, 14 Slide groove 2, 15 Slide groove 3, 16 Pressure plate, 17 Screw, 18 Cylinder 2, 19 Link 5, 20 Connecting plate, 21 Positioning hole, 22 Cover plate, 23 Connecting arm, 24 Bracket, 25 Connecting base, 26 Drive source, 27 Pressure block 1, 28 Pressure block 2, 29 Rubber strip, 30 Relief groove. Detailed Implementation

[0039] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0040] Example 1

[0041] like Figure 1 As shown, this pressing and sewing device includes a mounting base 1, on which a movable upper fixed piece 2 is provided. The mounting base 1 is also provided with a mounting block 5 and a driving component 6 for moving the mounting block 5. A connecting rod 3 and a connecting rod 4 are respectively connected to one end and the other end of the upper fixed piece 2. Both connecting rod 3 and connecting rod 4 are fixed on the mounting block 5.

[0042] The drive component 6 of the pressing and sewing device drives the mounting block 5 to move. The mounting block 5 drives the first connecting rod 3 and the second connecting rod 4 to move synchronously. The first connecting rod 3 and the second connecting rod 4 then drive the upper fixed piece 2 to move in parallel.

[0043] In one embodiment, connecting rod 3 and connecting rod 4 are respectively fixed to the mounting block 5 by connecting arm 23.

[0044] like Figure 1 As shown, in this embodiment, a movable lower fixed piece 7 is provided on the mounting base 1. A connecting rod 3 8 and a connecting rod 4 9 are respectively connected to one end and the other end of the lower fixed piece 7. A swing rod 10 and a swing rod 2 11 are hinged on the mounting base 1. One end of the swing rod 10 is movably connected to the connecting rod 1 3, and the other end of the swing rod 10 is movably connected to the connecting rod 3 8. One end of the swing rod 2 11 is movably connected to the connecting rod 2 4, and the other end of the swing rod 2 11 is movably connected to the connecting rod 4 9.

[0045] Driven by the drive component 6, when the mounting block 5 drives the first link 3 and the second link 4 to move synchronously, the first link 3 drives the first swing arm 10 to swing, the first swing arm 10 drives the third link 8 to move, and at the same time, the second link 4 drives the second swing arm 2 11 to swing, the second swing arm 2 11 drives the fourth link 9 to move. Therefore, the third link 8 and the fourth link 9 also move synchronously, and the third link 8 and the fourth link 9 simultaneously drive the lower fixed piece 7 to move in parallel.

[0046] The structure only uses one driving source to link the upper material positioning piece 2 and the lower material positioning piece 7, and move the upper material positioning piece 2 and the lower material positioning piece 7 towards or away from each other, so as to avoid the folded pocket fabric from falling off or the sewn pocket from being larger on one side and smaller on the other side, and the sewing quality of the pocket is ensured well in the case of simplified structure.

[0047] As shown in Figure 1 and 2 In the embodiment, the middle part of the swing rod one 10 is hinged to the mounting seat 1, and a sliding groove one 12 is formed on each end of the swing rod one 10, and a sliding block 13 is mounted on each of the connecting rod one 3 and the connecting rod three 8, and the sliding block 13 is slidingly connected in the corresponding sliding groove one 12.

[0048] Each sliding block 13 and the corresponding sliding groove one 12 form a sliding structure, so that the swing rod one 10 is movably connected with the connecting rod one 3 and the connecting rod three 8 (specifically, the swing rod one 10 swings while moving relative to the connecting rod one 3 and the connecting rod two 4), so that when the connecting rod one 3 moves, the connecting rod three 8 is driven to move through the swing of the swing rod one 10.

[0049] As shown in Figure 1 and 3 In the embodiment, the middle part of the swing rod two 11 is hinged to the mounting seat 1, and a sliding groove one 12 is formed on each end of the swing rod two 11, and a sliding block 13 is mounted on each of the connecting rod two 4 and the connecting rod four 9, and the sliding block 13 is slidingly connected in the corresponding sliding groove one 12.

[0050] Each sliding block 13 and the corresponding sliding groove one 12 form a sliding structure, so that the swing rod two 11 is movably connected with the connecting rod two 4 and the connecting rod four 9 (specifically, the swing rod two 11 swings while moving relative to the connecting rod two 4 and the connecting rod four 9), so that when the connecting rod two 4 moves, the connecting rod four 9 is driven to move through the swing of the swing rod two 11.

[0051] As shown in Figure 1 and 4 In the embodiment, the mounting seat 1 is provided with a plurality of sliding grooves two 14 and a plurality of sliding grooves three 15, the connecting rod one 3 and the connecting rod two 4 are slidingly connected in the corresponding sliding grooves two 14, and the connecting rod three 8 and the connecting rod four 9 are slidingly connected in the corresponding sliding grooves three 15.

[0052] The sliding grooves two 14 guide the connecting rod one 3 and the connecting rod two 4, and the sliding grooves three 15 guide the connecting rod three 8 and the connecting rod four 9, which improves the stability of the movement of each connecting rod, makes the transmission more accurate, and enables the upper material positioning piece 2 and the lower material positioning piece 7 to move more stably in parallel, so that the sewn pocket meets the size requirements.

[0053] As an embodiment, the driving member 6 includes a gas cylinder one, and a mounting block 5 is fixed on the piston rod of the gas cylinder one.

[0054] As other embodiments, the gas cylinder one can also be replaced by an oil cylinder or a linear motor or a screw motor.

[0055] As shown in Figure 1 and 5 , the embodiment also includes a pressing piece 16, one side of the pressing piece 16 is fixed to the bottom of the mounting seat 1, and more than one screw 17 is arranged on the other side of the pressing piece 16, the screw 17 extends from the top of the mounting seat 1, one side and the other side of the driving part 6 are respectively provided with a gas cylinder two 18, the piston rod of the gas cylinder two 18 is respectively provided with a connecting rod five 19, the connecting rod five 19 is provided with a connecting piece 20, the connecting piece 20 is provided with more than one positioning hole 21, the screw 17 is respectively located in the corresponding positioning hole 21 and has a spacing with the corresponding positioning hole 21.

[0056] One side of the pressing piece 16 is fixed to the bottom of the mounting seat 1, after the pressing piece 16 is pressed tightly, under the driving of the gas cylinder two 18, the two connecting rod fives 19 respectively drive the connecting piece 20 to move, so that the positioning hole 21 on the connecting piece 20 is close to the screw 17 until the inner wall of the positioning hole 21 abuts on the screw 17, at this time, the positioning hole 21 locks the screw 17, so as to fix the other side of the pressing piece 16. The structure fixes the pressing piece 16 in two directions, when the cloth is relatively thick, the pressing piece 16 is difficult to press tightly due to insufficient elastic force.

[0057] As shown in Figure 6 , in the embodiment, the top of the mounting seat 1 is provided with a cover plate 22, the cover plate 22 is located above the upper material setting piece 2 and the lower material setting piece 7.

[0058] The cover plate 22 covers most of the connecting rods, basically hides the connecting rods, and also protects the connecting rods and other components on the mounting seat 1.

[0059] Embodiment two

[0060] The structure and principle of the embodiment are basically the same as those of embodiment one, the difference lies in that, as shown in Figure 7 and 8 , the mounting seat 1 is provided with a support 24, the support 24 is provided with a connecting seat 25 and a driving source 26 for driving the connecting seat 25 to move up and down, the connecting seat 25 is provided with a pressing block one 27 and a pressing block two 28, the bottom of the pressing block one 27 and the pressing block two 28 is respectively provided with a rubber strip 29, the mounting seat 1 is provided with a gap slot 30 penetrating through the mounting seat 1, the pressing block one 27 and the pressing block two 28 can extend into the gap slot 30 and abut against the pressing piece 16.

[0061] In operation, cloth is placed on the mounting base 1, under the driving of the driving source 26, the connecting base 25 moves downward, the pressing block one 27 and the pressing block two 28 move downward and extend into the accommodating slot 30, and the cloth is pressed when the pressing block one 27 and the pressing block two 28 abut against the pressing piece 16.

[0062] The bottom of the pressing block one 27 and the pressing block two 28 is respectively provided with a rubber strip 29, the rubber strip 29 of the bottom of each pressing block is in contact with the cloth when the cloth is pressed, the rubber strip 29 elastically presses the cloth, the pressing force can be increased, and the cloth is not damaged. The rubber strip 29 can be integrally formed on each pressing block by injection molding.

[0063] The driving source 26 can be a pneumatic cylinder or an oil cylinder.

[0064] The utility model also provides a bag opening machine, and the bag opening machine comprises the pressing and sewing device.

[0065] The directionality indication (such as up, down, left, right, front, back and the like) involved in the embodiment of the utility model is only used for explaining the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), if the specific posture changes, then the directionality indication also changes accordingly.

[0066] The specific embodiments described in the present text are only illustrative of the spirit of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar ways to replace, but will not deviate from the spirit of the utility model or exceed the range defined by the appended claims.

Claims

1. A presser bar sewing device comprising a mounting base (1) provided with a movable upper material retainer (2), characterized in that, The mounting base (1) is further provided with a mounting block (5) and a driving member (6) for driving the movement of the mounting block (5), one end and the other end of the upper material positioning piece (2) are respectively connected with a connecting rod one (3) and a connecting rod two (4), and the connecting rod one (3) and the connecting rod two (4) are both fixed on the mounting block (5).

2. A pinching seam device according to claim 1, wherein The mounting base (1) is provided with a movable lower material positioning piece (7), one end and the other end of the lower material positioning piece (7) are respectively connected with a connecting rod three (8) and a connecting rod four (9), and the mounting base (1) is hingedly provided with a swing rod one (10) and a swing rod two (11), one end of the swing rod one (10) is movably connected with the connecting rod one (3), the other end of the swing rod one (10) is movably connected with the connecting rod three (8), one end of the swing rod two (11) is movably connected with the connecting rod two (4), and the other end of the swing rod two (11) is movably connected with the connecting rod four (9).

3. A pinching seam device according to claim 2, wherein The middle part of the swing rod one (10) is hingedly connected with the mounting base (1), and one end and the other end of the swing rod one (10) are respectively provided with a sliding groove one (12), the connecting rod one (3) and the connecting rod three (8) are respectively provided with a sliding block (13), and the sliding blocks (13) are respectively slidably connected in the corresponding sliding grooves one (12).

4. A pinching seam device according to claim 2, wherein The middle part of the swing rod two (11) is hingedly connected with the mounting base (1), and one end and the other end of the swing rod two (11) are respectively provided with a sliding groove one (12), the connecting rod two (4) and the connecting rod four (9) are respectively provided with a sliding block (13), and the sliding blocks (13) are respectively slidably connected in the corresponding sliding grooves one (12).

5. A presser bar sewing apparatus according to claim 2 or 3 or 4, wherein, The mounting base (1) is provided with a plurality of sliding grooves two (14) and a plurality of sliding grooves three (15), the connecting rod one (3) and the connecting rod two (4) are respectively slidably connected in the corresponding sliding grooves two (14), and the connecting rod three (8) and the connecting rod four (9) are respectively slidably connected in the corresponding sliding grooves three (15).

6. A presser bar sewing apparatus according to claim 1 or 2 or 3 or 4, wherein, The driving member (6) comprises a cylinder one, and the piston rod of the cylinder one is fixed with the mounting block (5).

7. A presser bar sewing apparatus according to claim 1 or 2 or 3 or 4, wherein, Further comprising a material pressing piece (16), one side of the material pressing piece (16) is fixed on the bottom of the mounting base (1), the other side of the material pressing piece (16) is provided with more than one screw (17), the screw (17) extends from the top of the mounting base (1), one side and the other side of the driving member (6) are respectively provided with a cylinder two (18), the piston rod of the cylinder two (18) is respectively provided with a connecting rod five (19), the connecting rod fives (19) are provided with a connecting piece (20), the connecting piece (20) is provided with more than one positioning hole (21), and the screw (17) is respectively located in the corresponding positioning hole (21) and has a spacing with the corresponding positioning hole (21).

8. A pinching seam device according to claim 7, wherein The mounting base (1) is provided with a support (24), the support (24) is provided with a connecting seat (25) and a driving source (26) driving the connecting seat (25) to move up and down, the connecting seat (25) is provided with a pressing block one (27) and a pressing block two (28), the bottom of the pressing block one (27) and the pressing block two (28) is respectively provided with a rubber strip (29), the mounting base (1) is provided with a gap slot (30) penetrating the mounting base (1), the pressing block one (27) and the pressing block two (28) can extend into the gap slot (30) and abut against the pressing piece (16).

9. A presser bar sewing apparatus according to claim 2 or 3 or 4, wherein The top of the mounting base (1) is provided with a cover plate (22), the cover plate (22) is located above the upper material positioning piece (2) and the lower material positioning piece (7).

10. An opening machine characterized by comprising: The bag opening machine comprises the pressing and sewing device according to any one of claims 1-9.

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