Downward pressing component for bag opening machine and bag opening machine

Abstract

The utility model discloses a downward pressing component for a bag opening machine and the bag opening machine, and relates to the technical field of bag opening machines. The utility model specifically comprises a main body part and a pressing part for pressing the folded edge, wherein the pressing part is provided with an anti-skid structure. The anti-skid structure is arranged on the pressing part of the lower pressing plate, so that the resistance of the folded edge to be separated from the pressing frame and the lower pressing plate is increased, and the folded edge is prevented from being separated.

Description

Technical Field

[0001] The utility model relates to the technical field of bag opening machines, and specifically provides a pressing component for a bag opening machine and the bag opening machine. Background Art

[0002] The bag opening machine is used to make bag lips and sew bag cloth on the bag lips. When preparing the bag lips, after the cutting machine head cuts an opening on the cloth, a folded edge is formed at the opening position. After the folded edge is folded and sewn with the cloth, the bag lip is formed. In the process of folding and sewing the folded edge, the lower pressing plate and the pressing frame need to be used to press the folded edge tightly, so that the position of the folded edge and the cloth is fixed, which is convenient for the sewing of the sewing machine head. After the folded edge is folded down, the lower pressing plate presses the folded edge from the bottom, and the pressing frame presses the cloth from the top. The lower pressing plate and the pressing frame press the cloth and the folded edge from the top and bottom sides respectively.

[0003] However, the length of the bag lip is much greater than the width, and the width of the hem is usually only about 5mm. The hem also needs to be sewn with the fabric. Therefore, when the lower pressure plate presses the hem, it cannot completely cover the hem from the bottom, and a part of the hem needs to be reserved for the sewing machine head to sew. Therefore, the contact area between the lower pressure plate and the hem is very small. When the sewing machine head sews the hem and the fabric, the hem is easily separated from the lower pressure plate due to force, resulting in an unqualified bag lip. Utility Model Content

[0004] The utility model provides a pressing component for a bag opening machine and the bag opening machine, which are used to solve the problem that the folded edge is easy to separate from the lower pressing plate.

[0005] The technical solution of the utility model is as follows:

[0006] A pressing component for a bag opening machine comprises a main body and a pressing part for pressing a folded edge, wherein the pressing part is provided with an anti-slip structure.

[0007] In this solution, the lower pressure plate is divided into two parts according to its function: a main body and a clamping part. The clamping part is used to clamp the folded edge, and an anti-slip structure is provided on the clamping part. The anti-slip effect can increase the resistance to the folded edge detachment, thereby preventing the folded edge from separating from the lower pressure plate.

[0008] The anti-slip structure includes anti-slip holes.

[0009] In this solution, an anti-slip hole is provided in the pressing portion, and when the pressing portion presses the folded edge, the anti-slip hole can increase the sliding resistance of the folded edge.

[0010] The pressing portion is provided with at least two anti-slip holes.

[0011] In this solution, the more anti-skid holes are provided, the greater the resistance of the pressing part to the folded edge. By increasing the number of anti-skid holes, the resistance to the folded edge is increased to prevent the folded edge from being separated from the lower pressing plate and the pressing frame.

[0012] The anti-slip holes are arranged along a straight line on the pressing portion.

[0013] In this solution, the anti-skid holes are arranged along a straight line, so that the anti-skid holes can have a more uniform effect on the folding edge, ensuring that each position of the folding edge can be evenly resisted.

[0014] A bending structure is provided between the main body and the pressing part, and the main body and the pressing part are connected through the bending structure.

[0015] In this solution, a bending structure is provided between the main body and the pressing portion, which can increase the strength of the pressing portion and avoid deformation of the pressing portion.

[0016] The main body is provided with a connecting hole.

[0017] In this solution, the connecting hole can be used to connect a structure for driving the lower pressing plate, such as a cylinder, an electric cylinder and the like, and can also be used to connect a guiding structure such as a guide rod and the like.

[0018] The main body is provided with at least two connection holes, and each connection hole is symmetrically arranged on both sides of the main body.

[0019] In this solution, at least two connecting holes are provided, so that the force on the lower pressing plate can be more evenly distributed, and at the same time, the force on the lower pressing plate can be prevented from being too concentrated and thus being tilted.

[0020] Preferably, the anti-slip structure further includes an anti-slip groove, and the anti-slip groove is arranged on the bottom surface of the pressing portion.

[0021] In this solution, after the bag lip is sewn, the bag cloth can be sewn on the bag lip, and the bag cloth can form a pocket with the clothing after sewing. When sewing the bag cloth, the lower pressing plate is required to press the bag cloth, and then the bag cloth is moved laterally to the lower side of the sewing machine head by friction. The anti-slip groove can increase the friction of the pressing part on the bag cloth, and the role of the anti-slip groove is to increase the area. The length of the anti-slip groove can be much greater than the width, which can form a stronger anti-slip ability.

[0022] The bottom surface of the pressing portion is provided with at least two anti-skid grooves, and each anti-skid groove is arranged along a linear array on the bottom surface of the pressing portion.

[0023] In this solution, at least two anti-skid grooves are provided, and by increasing the number, all parts of the bag cloth are protected by the anti-skid effect of the protective grooves, thereby ensuring that no part of the bag cloth slides relative to the lower pressure plate, ensuring the accurate position of the bag cloth, and thus ensuring the accurate sewing position of the bag cloth.

[0024] The utility model also provides a bag opening machine, comprising the above-mentioned lower pressing plate, and also comprising a bracket and a lifting mechanism, wherein the lifting mechanism is fixed to the bracket, and the lifting mechanism is connected to the lower pressing plate.

[0025] In this solution, a lifting mechanism is provided to control the up and down movement of the lower pressing plate, so that the lower pressing plate can press the folded edge like a pressing frame or other structures.

[0026] Beneficial effects of the utility model:

[0027] The utility model provides an anti-slip structure on the pressing part of the lower pressing plate, thereby increasing the resistance of the folding edge being separated from the pressing frame and the lower pressing plate, and preventing the folding edge from being separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the present utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of embodiment 1;

[0030] Figure 2 It is a bottom view of the second embodiment;

[0031] Figure 3 It is a cross-sectional view of the second anti-skid groove part.

[0032] In the above drawings, the corresponding reference numerals are as follows:

[0033] 1. Main body; 2. Connecting hole; 3. Bending structure; 4. Pressing part; 5. Anti-slip hole; 6. Anti-slip groove. DETAILED DESCRIPTION

[0034] In conjunction with the accompanying drawings, the technical solution of the present utility model is clearly and completely explained through the specific implementation methods of the embodiments of the present utility model.

[0035] Embodiment 1.

[0036] like Figure 1 As shown, the present embodiment 1 provides a pressing component for a bag opening machine, the pressing component is a plate, that is, the pressing component can be a pressing plate, according to the function of the pressing plate, the part used for pressing the folded edge and the bag cloth is used as the pressing part 4, and the rest is used as the main body 1. The pressing part 4 is provided with an anti-slip structure, which can increase the sliding resistance of the folded edge and the bag cloth, thereby preventing the folded edge from sliding.

[0037] It should be noted that the pressing member may also be a frame structure with a pressing edge. For example, a rectangular frame structure made of profiles is used as the main body 1, and a side strip is welded on the edge of the frame structure as the pressing part 4.

[0038] The anti-slip structure is an anti-slip hole 5. The anti-slip hole 5 is a through hole that penetrates the upper and lower surfaces of the lower pressing plate. The through hole that penetrates the upper and lower surfaces of the lower pressing plate can increase the sliding resistance of the folded edge and can also increase the sliding resistance of the bottom surface of the lower pressing plate. When it is necessary to sew the bag cloth on the bag lip, the anti-slip hole 5 can also increase the sliding resistance of the bag cloth.

[0039] The anti-slip structure may also be other structures such as teeth, adhesive layers, etc. arranged on the pressing part 4.

[0040] The length of the folded edge is much greater than the width, so a plurality of anti-skid holes 5 are provided along the length direction of the pressing portion 4, and the anti-skid holes 5 are provided at equal distances. Since the width of the folded edge is very small, only one row of anti-skid holes 5 can be provided, and the diameter of the anti-skid holes 5 can be 1mm-3mm. In other words, the anti-skid holes 5 are provided in a linear array on the pressing portion 4. The number of the anti-skid holes 5 can be two, three, four or more.

[0041] The diameter of the anti-slip hole 5 is preferably 2 mm. Since the hem sizes corresponding to bag lips of different sizes are also different, the anti-slip hole 5 with a diameter of 2 mm can be used to press the hems of most sizes, and can ensure that the anti-slip hole 5 fully overlaps with the hem, thereby ensuring the anti-slip effect of the hem. The purpose of arranging the anti-slip holes 5 along a straight line array is also to make the anti-slip holes 5 suitable for pressing hems of different sizes.

[0042] The thickness of the lower pressing plate is very thin, so the pressing part 4 is easily deformed as a force point when in use. The deformation of the pressing part 4 will also reduce the fixing effect of the folded edge, which is easy to cause the folded edge to detach. A bending structure 3 is provided between the main body 1 and the pressing part 4, and the bending structure 3 can increase the strength of the lower pressing plate, thereby preventing pressing in and deformation of the main body 1.

[0043] The bending structure 3 makes the height of the pressing part 4 lower than the height of the main body 1, ensuring that the bottom surface of the pressing part 4 can be used to press the bag cloth.

[0044] The main body 1 of the lower pressing plate is provided with a connection hole 2, through which other structures can be connected. For example, the lower pressing plate needs to move up and down during operation, and the connection hole 2 can be used to connect the telescopic rod of the cylinder or electric cylinder, and can also be used to connect structures such as guide rods. Due to the existence of the bending structure 3, the bottom height of the main body 1 is higher than the bottom height of the pressing part 4, so that there is a certain distance between the bottom of the main body 1 and the bag cloth or the working platform, so the telescopic rod or guide rod and other structures can be connected to the connection hole 2 by welding.

[0045] The lower pressure plate is provided with at least two connection holes 2, each connection hole 2 is respectively arranged on both sides of the main body 1, and each connection hole 2 can be symmetrically arranged relative to the center of the main body 1, so that the main body 1 is subjected to uniform force at all locations, avoiding tilting and deviation of the main body 1 due to uneven force.

[0046] Embodiment 2.

[0047] The second embodiment provides a pressing component for a bag opening machine. The difference from the first embodiment is that the second embodiment further includes an anti-slip groove 6 .

[0048] like Figure 2 As shown, the anti-skid groove 6 is provided on the bottom surface of the pressing part 4, and the function of the anti-skid groove 6 is to prevent the bag cloth from sliding. The length direction of the anti-skid groove 6 is perpendicular to the length direction of the pressing part 4. The length of the anti-skid groove 6 is greater than the diameter of the anti-skid hole 5, and the width of the anti-skid groove 6 is also greater than the diameter of the anti-skid hole 5.

[0049] The bottom surface of the pressing portion 4 is provided with at least two anti-skid grooves 6, and each anti-skid groove 6 is equidistantly arranged along the length direction of the pressing portion 4. In other words, each anti-skid groove 6 is distributed on the bottom surface of the pressing portion 4 in a linear array.

[0050] The purpose of setting the anti-skid groove 6 is to increase the anti-skid area to ensure that the position of the bag cloth used for sewing with the bag lip is accurate and unchanged. The area of ​​the bag cloth is much larger than the folded edge, and the pressing part 4 only needs to press the part of the bag cloth and the bag lip that needs to be sewn. It is precisely because the area of ​​the bag cloth is much larger than the folded edge that the anti-skid groove 6 is set to increase the anti-skid area, thereby improving the stability of the bag cloth.

[0051] The anti-skid grooves 6 are arranged at equal distances, and the anti-skid holes 5 are also arranged at equal distances, and the spacing of the anti-skid grooves 6 is twice the spacing of the protection holes. Each anti-skid hole 5 is located at the center line of the anti-skid groove 6 or the middle between two anti-skid grooves 6, ensuring that the anti-skid hole 5 will not overlap with the side wall of the anti-skid groove 6 to affect the strength of the pressing part 4.

[0052] like Figure 3 As shown, the bottom surface of the anti-skid groove 6 is inclined relative to the bottom surface of the pressing part 4, one end of the anti-skid groove 6 passes through the side surface of the pressing part 4, and the other end of the anti-skid groove 6 passes through the bottom surface of the pressing part 4. Setting the bottom surface of the anti-skid groove 6 to be inclined can reduce the influence of the anti-skid groove 6 on the strength of the pressing part 4, ensuring that the pressing part 4 will not deform.

[0053] Embodiment three.

[0054] The third embodiment provides a bag opening machine, including a pressing component for a bag opening machine as described in the first or second embodiment.

[0055] The bag opening machine further comprises a bracket, on which the lower pressing plate is mounted. The bracket is provided with a lifting mechanism, one end of which is connected to the bracket, and the other end of which is connected to the lower pressing component, for driving the lower pressing plate to move up and down.

[0056] The bag opening machine is also provided with a pressing frame, and the lower pressing plate is arranged at the lower side of the pressing frame. When the lower pressing plate rises, the pressing portion 4 of the lower pressing plate can be pressed against the bottom of the pressing frame, thereby pressing the folded edge.

[0057] The lifting mechanism can be a combination of a cylinder and a guide rod, the bottom end of the guide rod is connected to the connection hole 2 of the lower pressure plate, and the telescopic rod of the cylinder is connected to the top of the guide rod. A guide hole is provided on the bracket, and the guide rod is slidably connected to the guide hole. The cylinder can also be replaced by an electric cylinder or other structure. The cooperation between the guide rod and the guide hole can also be replaced by a slide rail slider.

Claims

1. A pressing component for a bag opening machine, characterized in that: It comprises a main body (1) and a pressing part (4) for pressing the folded edge, the pressing part (4) is provided with an anti-slip structure, a bending structure (3) is provided between the main body (1) and the pressing part (4), and the main body (1) and the pressing part (4) are connected via the bending structure (3).

2. A pressing component for a bag opening machine according to claim 1, characterized in that: The anti-slip structure comprises an anti-slip hole (5).

3. A pressing component for a bag opening machine according to claim 2, characterized in that: The pressing portion (4) is provided with at least two anti-slip holes (5).

4. A pressing component for a bag opening machine according to claim 3, characterized in that: The anti-slip holes (5) are arranged along a straight line on the pressing portion (4).

5. A pressing component for a bag opening machine according to claim 1, characterized in that: The main body (1) is provided with a connecting hole (2).

6. A pressing component for a bag opening machine according to claim 5, characterized in that: The main body (1) is provided with at least two connection holes (2), and each connection hole (2) is symmetrically arranged on two sides of the main body (1).

7. A pressing component for a bag opening machine according to claim 1, characterized in that: The anti-slip structure further comprises an anti-slip groove (6), and the anti-slip groove (6) is arranged on the bottom surface of the pressing portion (4).

8. A pressing component for a bag opening machine according to claim 1, characterized in that: The bottom surface of the pressing portion (4) is provided with at least two anti-slip grooves (6), and the anti-slip grooves (6) are arranged along a linear array on the bottom surface of the pressing portion (4).

9. A bag opening machine, characterized in that: The invention comprises a pressing component for a bag opening machine as described in any one of claims 1 to 8, and further comprises a bracket and a lifting mechanism, wherein the lifting mechanism is fixed to the bracket and connected to the pressing component.

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