Pressing device of bag making machine

Abstract

The utility model provides a bag making machine hold-down device which comprises a base, a first fixing plate is fixedly installed on the top of the base, a hold-down assembly is arranged on the top of the inner side of the first fixing plate, the hold-down assembly comprises a shell, the shell is fixedly installed on the top of the inner side of the first fixing plate, and the first fixing plate is fixedly installed on the shell. A hard spring is fixedly connected to an inner cavity of the shell, a base plate is movably connected to the inner cavity of the shell, a fixing rod is fixedly connected to the bottom of the base plate, a U-shaped plate is fixedly connected to the bottom of the fixing rod, a pressing roller is movably connected to the inner side of the U-shaped plate through a rotating shaft, and a second fixing plate is fixedly installed at the top of the rear side of the base. Through the arrangement of the pressing assembly, it can be ensured that sealing of the heat sealing part is firm and uniform, so that the bag opening is smoother and more stable during cutting, and the situation that due to looseness or unevenness of the sealing part, cutting is irregular or the tearing phenomenon occurs, and consequently the quality of follow-up cutting machining of products is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of bag making machine pressing device, belong to bag making machine technical field. BACKGROUND

[0002] Non-woven fabric is also called non-woven fabric, needle-punched cotton, needle-punched non-woven fabric, etc. It is made of polyester fiber and polyester fiber material. It is made by needle punching process. Different thickness, hand feeling, hardness, etc. Non-woven fabric has the characteristics of moisture-proof, breathable, flexible, light, flame-retardant, non-toxic and odorless, low price, recyclable, etc. It can be used in different industries, such as sound insulation, heat insulation, heating sheet, mask, clothing, medical, filling material, etc. In the process of non-woven fabric packaging and processing, bag making machine is needed to process and handle non-woven fabric packaging bag.

[0003] The authorized announcement number (CN 207876157 U) discloses a bag making machine, which comprises a rack body, a conveying device and a cutter. The conveying device is arranged on the rack body and conveys the film packaging bag from one end of the rack body to the other end. The cutter is arranged on the rack body and located on the transmission path of the film packaging bag. The bag making machine provided by the utility model realizes automatic edge cutting during the processing of the film packaging bag.

[0004] As described above, the bag making machine lacks material pressing measures during the processing, which will affect the cutting accuracy of the cutting machine in the subsequent processing. Because the surface of the bag may wrinkle or partially relax, the cutting knife may not accurately position the cutting position, resulting in irregular cutting, skew, overlap or excess corners, which not only increases the scrap rate, but also affects the packaging quality and production efficiency.

[0005] Therefore, a bag making machine pressing device is proposed. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model provides a bag making machine pressing device to solve or alleviate the technical problems in the prior art, at least to provide a beneficial choice.

[0007] The technical scheme of the utility model is as follows: a bag making machine pressing device, comprising a base, a first fixed plate is fixedly installed on the top of the base, a pressing assembly is arranged on the top of the inner side of the first fixed plate, the pressing assembly comprises a shell, the shell is fixedly installed on the top of the inner side of the first fixed plate, a hard spring is fixedly connected in the inner cavity of the shell, a bottom disc is movably connected in the inner cavity of the shell, a fixed rod is fixedly connected to the bottom of the bottom disc, a U-shaped plate is fixedly connected to the bottom of the fixed rod, and a pressing roller is movably connected to the inner side of the U-shaped plate through a rotating shaft.

[0008] More preferably, a second fixing plate is fixedly installed on the top of the rear side of the base, and a cylinder is fixedly installed on the top of the inner side of the second fixing plate. A replacement assembly is provided at the bottom of the cylinder. The replacement assembly includes a support rod, an upper ring, a lower ring, a plug rod, and a fixing plate. The support rod is fixedly installed at the bottom of the cylinder, the upper ring is fixedly installed on the surface of the support rod, and the lower ring is fixedly installed at the bottom of the support rod.

[0009] More preferably, the bottom of the second fixing plate is provided with an assembly plate, the fixing plate is fixedly installed on the top of the assembly plate, and a cutter is fixedly installed on the inner side of the assembly plate.

[0010] More preferably, the insertion rod is slidably connected to the inner side of the fixed disk, and a tension spring is sleeved on the surface of the insertion rod, the tension spring being fixedly connected to the inner cavity of the fixed disk.

[0011] More preferably, the left end of the insertion rod is trapezoidal, and the insertion rod extends through the inner side of the fixing plate to between the upper and lower rings.

[0012] More preferably, the inner side of the base is movably connected to a drive roller via a rotating shaft, and the inner side of the base is movably connected to multiple driven rollers.

[0013] More preferably, a motor is fixedly installed on the front side of the base, and the output end of the motor is fixedly connected to the drive roller to drive the drive roller to rotate.

[0014] More preferably, both the active roller and the driven roller are movably connected to a transmission belt, and the rotation of the active roller drives the transmission belt to rotate, thereby conveying the nonwoven packaging bag forward.

[0015] The present invention has the following advantages due to the adoption of the above technical solution:

[0016] I. By setting up the pressing component, this utility model can ensure that the heat-sealed part is firmly and evenly sealed, so that the bag opening is more flat and stable when cutting, avoiding irregular cutting or tearing due to loose or uneven sealing part, which would affect the quality of subsequent product cutting and processing.

[0017] Second, by setting up a replacement component, this utility model can quickly replace the cutter to reduce downtime caused by cutter wear or damage, enabling the equipment to quickly resume normal production and avoid affecting the production schedule due to excessive operation time, thereby improving the production rhythm of the factory.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a second-view three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a cross-sectional view of the transmission belt structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the clamping component structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the replacement component structure of this utility model.

[0025] Reference numerals: 1. Base; 2. Driven roller; 3. First fixed plate; 4. Pressing assembly; 401. Housing; 402. Stiff spring; 403. Fixing rod; 404. Chassis; 405. U-shaped plate; 406. Pressing roller; 5. Second fixed plate; 6. Replacement assembly; 601. Support rod; 602. Upper ring; 603. Lower ring; 604. Insert rod; 605. Tension spring; 606. Fixed plate; 7. Motor; 8. Driven roller; 9. Assembly plate; 10. Cutter; 11. Cylinder; 12. Drive belt. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figures 1-4 As shown, this utility model embodiment provides a pressing device for a bag making machine, including a base 1. A first fixing plate 3 is fixedly installed on the top of the base 1. A pressing component 4 is provided on the top of the inner side of the first fixing plate 3. The pressing component 4 includes a housing 401, which is fixedly installed on the top of the inner side of the first fixing plate 3. A rigid spring 402 is fixedly connected to the inner cavity of the housing 401. A chassis 404 is movably connected to the inner cavity of the housing 401. A fixing rod 403 is fixedly connected to the bottom of the chassis 404. A U-shaped plate 405 is fixedly connected to the bottom of the fixing rod 403. A pressing roller 406 is movably connected to the inner side of the U-shaped plate 405 through a rotating shaft.

[0030] By setting up the clamping component 4, the heat-sealed part can be ensured to be firmly and evenly sealed, so that the bag opening is more flat and stable when cutting, avoiding irregular cutting or tearing due to loose or uneven sealing, which would affect the quality of subsequent product cutting and processing.

[0031] Example 2

[0032] like Figures 1-5 As shown, in one embodiment, a second fixing plate 5 is fixedly installed on the top of the rear side of the base 1. A cylinder 11 is fixedly installed on the top of the inner side of the second fixing plate 5. A replacement component 6 is provided at the bottom of the cylinder 11. The replacement component 6 includes a support rod 601, an upper ring 602, a lower ring 603, an insert rod 604, and a fixing plate 606. The support rod 601 is fixedly installed at the bottom of the cylinder 11, the upper ring 602 is fixedly installed on the surface of the support rod 601, and the lower ring 603 is fixedly installed at the bottom of the support rod 601. An assembly plate 9 is provided at the bottom of the second fixing plate 5. The fixing plate 606 is fixedly installed on the top of the assembly plate 9. A cutter 10 is fixedly installed on the inner side of the assembly plate 9. The insert rod 604 is slidably connected to the fixing plate. Inside 606, a tension spring 605 is fitted on the surface of the insertion rod 604. The tension spring 605 is fixedly connected to the inner cavity of the fixed plate 606. The left end of the insertion rod 604 is trapezoidal. The insertion rod 604 extends through the inner side of the fixed plate 606 to the space between the upper ring 602 and the lower ring 603. The inner side of the base 1 is movably connected to the drive roller 2 via a rotating shaft. Multiple driven rollers 8 are movably connected to the inner side of the base 1. A motor 7 is fixedly installed on the front side of the base 1. The output end of the motor 7 is fixedly connected to the drive roller 2, driving the drive roller 2 to rotate. The surfaces of the drive roller 2 and the driven rollers 8 are movably connected to a transmission belt 12. The rotation of the drive roller 2 drives the transmission belt 12 to rotate, thus conveying the non-woven packaging bag forward.

[0033] By changing component 6, the cutter can be quickly replaced to reduce downtime caused by cutter wear or damage, allowing the equipment to quickly return to normal production and avoiding production delays due to excessive operation time, thereby improving the factory's production pace.

[0034] In operation, this invention works as follows: First, the motor 7 is started. The output of the motor 7 drives the active roller 2 to rotate. Simultaneously, the active roller 2 rotates, driving the driven roller 8 and the transmission belt 12 to rotate, thus beginning the transportation of uncut bags. During transportation, the rigid spring 402 presses the fixing rod 403, which transmits force to the fixing rod 403, the U-shaped plate 405, and the pressure roller 406. The pressure roller 406 presses the bags on the belt surface, making the bag opening smoother and more stable during cutting, preventing irregular cutting or tearing due to looseness or unevenness of the seal. The insert rod 604 is engaged with the lower ring 603 by lifting the buckle on the right side. At this time, pulling the insert rod 604 causes the buckle on the left side of the insert rod 604 to retract backward, disengaging it from the buckle. This prevents the cutting blade malfunction from affecting the production progress due to excessive operation time, thereby improving the factory's production rhythm.

[0035] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A pressing device for a bag-making machine, comprising a base (1), characterized in that: A first fixing plate (3) is fixedly installed on the top of the base (1). A pressing assembly (4) is provided on the top of the inner side of the first fixing plate (3). The pressing assembly (4) includes a housing (401). The housing (401) is fixedly installed on the top of the inner side of the first fixing plate (3). A rigid spring (402) is fixedly connected to the inner cavity of the housing (401). A chassis (404) is movably connected to the inner cavity of the housing (401). A fixing rod (403) is fixedly connected to the bottom of the chassis (404). A U-shaped plate (405) is fixedly connected to the bottom of the fixing rod (403). A pressing roller (406) is movably connected to the inner side of the U-shaped plate (405) through a rotating shaft.

2. The pressing device for a bag-making machine according to claim 1, characterized in that: A second fixing plate (5) is fixedly installed on the top of the rear side of the base (1). A cylinder (11) is fixedly installed on the top of the inner side of the second fixing plate (5). A replacement component (6) is provided at the bottom of the cylinder (11). The replacement component (6) includes a support rod (601), an upper ring (602), a lower ring (603), a plug rod (604), and a fixing plate (606). The support rod (601) is fixedly installed at the bottom of the cylinder (11). The upper ring (602) is fixedly installed on the surface of the support rod (601). The lower ring (603) is fixedly installed at the bottom of the support rod (601).

3. The pressing device for a bag-making machine according to claim 2, characterized in that: The bottom of the second fixing plate (5) is provided with an assembly plate (9), the fixing disk (606) is fixedly installed on the top of the assembly plate (9), and a cutter (10) is fixedly installed on the inner side of the assembly plate (9).

4. The pressing device for a bag-making machine according to claim 2, characterized in that: The insertion rod (604) is slidably connected to the inner side of the fixed plate (606), and a tension spring (605) is sleeved on the surface of the insertion rod (604). The tension spring (605) is fixedly connected to the inner cavity of the fixed plate (606).

5. The pressing device for a bag-making machine according to claim 2, characterized in that: The left end of the insertion rod (604) is trapezoidal, and the insertion rod (604) extends through the inner side of the fixing plate (606) to the space between the upper ring (602) and the lower ring (603).

6. The pressing device for a bag-making machine according to claim 1, characterized in that: The inner side of the base (1) is movably connected to a drive roller (2) via a rotating shaft, and the inner side of the base (1) is movably connected to a plurality of driven rollers (8).

7. The pressing device for a bag-making machine according to claim 6, characterized in that: A motor (7) is fixedly installed on the front side of the base (1), and the output end of the motor (7) is fixedly connected to the active roller (2) to drive the active roller (2) to rotate.

8. The pressing device for a bag-making machine according to claim 6, characterized in that: The surfaces of both the active roller (2) and the driven roller (8) are movably connected to a transmission belt (12). The active roller (2) rotates to drive the transmission belt (12) to rotate, thereby conveying the non-woven packaging bag forward.

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