A plastic bag flattening device of a plastic bag production apparatus

Abstract

The utility model relates to the technical field of plastic bag production, concretely to a plastic bag production equipment's plastic bag leveling device, including mounting panel, be provided with the connecting installation mechanism on the mounting panel, be provided with the adjusting mechanism on the connecting installation mechanism, and the adjusting mechanism includes: guide position frame, guide position frame is fixed in the one side of the flat conveying mechanism, sliding slot, the inside of mounting bracket is opened in the sliding slot, sliding block, sliding block sets up in the inside of sliding slot, jackscrew, jackscrew is connected in the inside of sliding block, the downside of adjusting mechanism is provided with the flat conveying mechanism, and the flat conveying mechanism includes first mounting bracket and second mounting bracket. Adjusting mechanism adjusts the flat wheel spacing through the sliding block in the sliding slot sliding, and the plastic bag of different width is adapted easily, and the plastic bag of different width is adapted just, avoids the operation displacement, and the flat conveying mechanism is driven by the motor and is extruded to the plastic bag both sides and is conveyed to the flat wheel rotation, and the wrinkle and bubble are eliminated efficiently, and the leveling quality is improved, and the operation precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag production technology, specifically to a plastic bag leveling device for plastic bag production equipment. Background Technology

[0002] Plastic bags are bags made primarily of plastic and are commonly used packaging materials in daily life. They are typically made by heating and plasticizing plastic raw materials in a barrel, then blowing them into a thin film using a blow molding machine. After cooling and setting, the film is cut to the required size and the edges are sealed using heat-sealing technology to create the finished plastic bag. They are widely used in everyday life areas such as shopping, food packaging, and waste disposal, and also have applications in industries such as medical care, agriculture, and express delivery, such as disposable infusion bags and bags for packaging seeds and fertilizers.

[0003] For example, Chinese utility model patent with publication number "CN221090139U" discloses a plastic bag leveling device for a plastic bag production equipment. This utility model relates to the field of plastic bag production leveling technology and discloses a plastic bag leveling device for a plastic bag production equipment. This plastic bag leveling device for a plastic bag production equipment, by setting a first base and a second base of different heights, allows the plastic bag to tilt and move during transmission. With the assistance of a blower, the plastic bag can be smoothly transmitted to the top of the second conveyor belt, expelling internal air bubbles before being flattened, thus improving the leveling effect. By setting the leveling mechanism on top of the transmission mechanism, the device can complete the leveling process during transmission, facilitating subsequent processing and improving processing continuity.

[0004] The aforementioned prior art has the following shortcomings in actual implementation: the practical flattening structure does not limit the movement of the plastic bag, so the plastic bag is prone to displacement during the flattening process. Utility Model Content

[0005] One of the technical problems this application aims to solve is that in the existing plastic bag leveling device of plastic bag production equipment, the flattening structure does not limit the movement of the plastic bag, which makes it easy for the plastic bag to shift during the flattening process, thereby affecting the leveling accuracy and the production quality of the plastic bag.

[0006] To address the aforementioned technical problems, this application provides a plastic bag leveling device for a plastic bag production equipment, comprising a mounting plate, a connecting mounting mechanism on the mounting plate, and an adjusting mechanism on the connecting mounting mechanism, the adjusting mechanism comprising:

[0007] A guide frame, which is fixed to one side of the flattening and conveying mechanism;

[0008] A slide rail, wherein the slide rail is formed inside the mounting bracket;

[0009] A slider, wherein the slider is disposed inside the groove;

[0010] A set screw is threaded inside the slider. A flattening conveying mechanism is provided on the lower side of the adjusting mechanism. The flattening conveying mechanism includes a first mounting frame and a second mounting frame. A fixing plate is fixedly connected to one side of the first mounting frame and the second mounting frame. A first motor is fixedly installed on one side of the fixing plate. A drive wheel is fixedly connected to the output end of the first motor. A belt is internally connected to the drive wheel. A driven wheel is connected to the drive wheel through the belt. A flattening wheel is fixedly connected to one side of the drive wheel and the driven wheel.

[0011] In some embodiments, the slider is slidably connected to the chute, the first mounting bracket is fixedly connected to the lower side of the slider, the second mounting bracket is fixedly connected to the lower side of the guide bracket, and two flattening and conveying mechanisms are provided.

[0012] In some embodiments, the connection mounting mechanism includes:

[0013] A connecting frame, which is fixedly connected to both sides of the guide frame;

[0014] A placement plate is fixedly connected to the lower end of the connecting frame.

[0015] In some embodiments, a conveying groove is provided through the interior of the connecting frame, and a transparent glass plate is fixedly connected inside the connecting frame.

[0016] In some embodiments, the connecting installation mechanism is provided with an anti-slip mechanism, the anti-slip mechanism comprising:

[0017] An inlay groove is formed on the lower surface of the placement plate;

[0018] A rubber pad, which is fixedly connected inside the inlay groove;

[0019] Anti-slip grooves are formed on the lower surface of the rubber pad.

[0020] In some embodiments, a guiding mechanism is provided inside the connecting installation mechanism, the guiding mechanism comprising:

[0021] An electric push rod, which is fixedly mounted on the top of the connecting frame;

[0022] The first fixed frame is fixedly connected to the lower side of the electric push rod;

[0023] The pressure roller is rotatably connected to the inner side of the first fixed frame. The upper side of the placement plate is fixedly connected to the second fixed frame. A second motor is fixedly installed on one side of the second fixed frame. The output end of the second motor is fixedly connected to the guide wheel.

[0024] In some embodiments, the pressure roller is disposed on the upper side of the guide wheel, and two guide mechanisms are provided, respectively disposed on the two sides inside the connecting and mounting mechanism, and one end of the guide wheel is rotatably connected to the second fixed frame.

[0025] This utility model has at least the following beneficial effects:

[0026] The adjustment mechanism adjusts the spacing between the flattening rollers by sliding a slider in the chute, easily accommodating plastic bags of different widths and ensuring a perfect fit, thus preventing displacement during operation. The flattening and conveying mechanism uses a motor to drive the flattening rollers to rotate and squeeze and convey the plastic bags from both sides, effectively eliminating wrinkles and air bubbles, improving flattening quality, and ensuring precise operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the first overall structure of this utility model from the front view;

[0028] Figure 2 This is a schematic diagram of the second overall structure of this utility model from the front view;

[0029] Figure 3 This is a side view of the overall structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the overall structure of the adjusting mechanism and the flattening conveying mechanism of this utility model;

[0031] Figure 5 This is a cross-sectional structural diagram of the adjustment mechanism and the flattening and conveying mechanism of this utility model.

[0032] In the diagram: 1. Mounting plate; 101. Guide frame; 102. Slide groove; 103. Slider; 104. Set screw; 201. First mounting frame; 202. Second mounting frame; 203. Fixing plate; 204. First motor; 205. Drive wheel; 206. Belt; 207. Driven wheel; 208. Drive wheel; 301. Connecting frame; 302. Placement plate; 401. Conveying trough; 402. Transparent glass plate; 501. Inlay groove; 502. Rubber pad; 503. Anti-slip groove; 601. Electric push rod; 602. First fixing frame; 603. Pressure roller; 604. Second fixing frame; 605. Second motor; 606. Guide wheel. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-5 This utility model provides a technical solution: a plastic bag leveling device for a plastic bag production equipment, including a mounting plate 1, a connecting mounting mechanism on the mounting plate 1, and an adjusting mechanism on the connecting mounting mechanism, the adjusting mechanism including:

[0035] Guide frame 101, the guide frame 101 is fixed to one side of the flattening conveying mechanism;

[0036] The slide 102 is formed inside the mounting bracket 101;

[0037] Slider 103, wherein the slider 103 is disposed inside the slide groove 102;

[0038] A set screw 104 is threadedly connected to the inside of the slider 103. A flattening conveying mechanism is provided on the lower side of the adjusting mechanism. The flattening conveying mechanism includes a first mounting frame 201 and a second mounting frame 202. A fixing plate 203 is fixedly connected to one side of the first mounting frame 201 and the second mounting frame 202. A first motor 204 is fixedly installed on one side of the fixing plate 203. A drive wheel 205 is fixedly connected to the output end of the first motor 204. A belt 206 is internally connected to the drive wheel 205. A driven wheel 207 is connected to the drive wheel 205 via the belt. A flattening wheel 208 is fixedly connected to one side of the drive wheel 205 and the driven wheel 207. The slider 103 is slidably connected to the slide groove 102. The first mounting frame 201 is fixedly connected to the lower side of the slider 103. The second mounting frame 202 is fixedly connected to the lower side of the guide frame 101. Two flattening conveying mechanisms are provided.

[0039] Through the above technical solution, the adjustment mechanism and the flattening conveying mechanism are the core of realizing the leveling function; the guide frame 101, as the basic carrier, provides support for the entire adjustment and flattening structure, and the internal groove 102 limits the movement trajectory of the slider 103 to ensure accurate adjustment direction; when it is necessary to adapt to plastic bags of different widths, the sliding slider 103 can drive the first mounting frame 201 to move synchronously, thereby changing the distance between the first mounting frame 201 and the flattening wheel of the second mounting frame 202. After the adjustment is completed, the distance can be fixed by locking the slider position with the set screw 104; the guide frame 101 connects the first mounting frame 201 and the second mounting frame 202, and the fixing plate 203 provides the installation position for the first motor 204. After the first motor 204 is started, the driving wheel 205 receives power and transmits the power to the driven wheel 207 through the belt 206, which finally drives the flattening wheel 208 to rotate, eliminating the wrinkles and air bubbles of the plastic bag through the squeezing action. The overall advantage of this combination is that the spacing between the flattening rollers can be flexibly adjusted to adapt to plastic bags of different widths, the double flattening conveyor structure design improves the flattening effect, and the 206 belt drive ensures stable power transmission.

[0040] Please see Figures 1-5 The connection and installation mechanism includes: a connecting frame 301, which is fixedly connected to both sides of the guide frame 101; a placement plate 302, which is fixedly connected to the lower end of the connecting frame 301; a conveying groove 401 is provided through the interior of the connecting frame 301; and a transparent glass plate 402 is fixedly connected inside the connecting frame 301.

[0041] Through the above technical solution, the connecting installation mechanism provides an integrated framework for the various functional modules of the equipment, which is the foundation for mechanism collaboration. The connecting frame 301 not only connects the guide frame 101 and the placement plate 302 to build a stable main structure, but also provides a key installation point for the guiding mechanism; the placement plate 302 bears the overall weight of the equipment and serves as the installation foundation for the anti-slip mechanism and the guiding mechanism, ensuring a reasonable layout of each component; the conveying trough 401, as a dedicated channel for plastic bags, limits its conveying path, and together with the transparent glass plate 402, allows operators to observe the internal conveying and leveling status in real time; the overall advantage of this design is that the frame structure is stable and reliable, providing stable installation support for each mechanism, while the visualization design facilitates timely detection and handling of abnormalities, effectively reducing the scrap rate.

[0042] Please see Figures 1-5 The connection and installation mechanism is provided with an anti-slip mechanism, which includes: an inlay groove 501, which is formed on the lower surface of the placement plate 302; a rubber pad 502, which is fixedly connected to the inside of the inlay groove 501; and an anti-slip groove 503, which is formed on the lower surface of the rubber pad 502.

[0043] Through the above technical solution, the anti-slip mechanism ensures stable equipment operation and works closely with the connection and installation mechanism. The inlay groove 501 on the lower surface of the placement plate 302 precisely fixes the position of the rubber pad 502, preventing it from shifting during equipment operation. The rubber pad 502 itself has high frictional properties, increasing the adhesion between the equipment and the mounting surface while buffering vibrations generated by the motor. The anti-slip groove 503 on its lower surface further enhances the anti-slip performance. The overall advantage of this mechanism is that it effectively prevents equipment displacement due to vibration, ensuring the accuracy of the conveying and leveling process, while the vibration buffering effect also extends the service life of the equipment.

[0044] Please see Figures 1-5 The installation mechanism includes a guiding mechanism, which comprises: an electric push rod 601 fixedly mounted on the top of the connecting frame 301; a first fixed frame 602 fixedly connected to the lower side of the electric push rod 601; a pressure roller 603 rotatably connected to the inner side of the first fixed frame 602; a second fixed frame 604 fixedly connected to the upper side of the placement plate 302; a second motor 605 fixedly mounted on one side of the second fixed frame 604; and a guide wheel 606 fixedly connected to the output end of the second motor 605. The pressure roller 603 is located on the upper side of the guide wheel 606. Two guiding mechanisms are provided, respectively located on both sides of the interior of the installation mechanism. One end of the guide wheel 606 is rotatably connected to the second fixed frame 604.

[0045] Through the above technical solution, the guiding mechanism connects the raw material input and the leveling process, which is a crucial prerequisite for ensuring the leveling quality. The electric push rod 601 at the top of the connecting frame 301 drives the first fixed frame 602 to move up and down, thereby adjusting the height of the pressure roller 603 so that it can form a clamping gap with the guide wheel 606 on the second fixed frame 604 that is suitable for the thickness of the plastic bag; the second motor 605 provides rotational power to the guide wheel 606, driving the plastic bag to move precisely along the conveying trough 401, while the pressure roller 603 assists in smoothing out wrinkles during the conveying process; the two symmetrically distributed guiding mechanisms work together, and the overall advantage is that they can adapt to plastic bags of different thicknesses, have a high degree of fit during conveying, and ensure that the plastic bag is not deviated during conveying, providing precise positioning for the subsequent leveling process of the flattening conveying mechanism and reducing wrinkles generated during the conveying process.

[0046] All electrical devices in this invention are powered by an external power source;

[0047] Working principle and usage process: The overall fixation is achieved through the connecting installation mechanism: the connecting frame 301 rigidly connects the guide frame 101 and the placement plate 302 to form the main frame. The rubber pad 502 in the groove 501 on the lower surface of the placement plate 302 is tightly attached to the mounting surface through the anti-slip groove 503, using friction to offset the vibration during equipment operation, preventing overall displacement, and laying a stable foundation for subsequent operations. Operators can check the internal condition of the conveying trough 401 in advance through the transparent glass plate 402 on the connecting frame 301 to ensure that there are no foreign objects obstructing it.

[0048] After the equipment is started, the guiding mechanism enters the working state first: the second motors 605 on both sides start synchronously, driving the guide wheels 606 on the second fixed frame 604 to rotate clockwise; at the same time, the electric push rod 601 at the top of the connecting frame 301 extends or shortens according to the thickness parameters of the plastic bag to be leveled, driving the first fixed frame 602 and the inner pressure roller 603 to move up and down until the lower surface of the pressure roller 603 and the upper surface of the guide wheel 606 form a clamping gap that matches the thickness of the plastic bag. When the plastic bag enters the conveying trough 401 from the equipment input end, the guide wheels 606 on both sides cooperate with the pressure roller 603 to form a clamping and conveying structure. The rotational force of the guide wheels 606 drives the plastic bag to be conveyed forward at a uniform speed along the central axis of the conveying trough 401. The symmetrical layout of the dual guiding mechanism can offset the force deviation on one side of the plastic bag and prevent deviation or wrinkles during the conveying process.

[0049] When the plastic bag is conveyed to the flattening conveyor area, the adjustment mechanism has completed the adaptation adjustment: according to the thickness of the plastic bag, the operator loosens the set screw 104 on the slider 103 and pushes the slider 103 to slide up and down along the slide groove 102 inside the guide frame 101. The slider 103 drives the connected first mounting frame 201 to move synchronously, thereby changing the position of the flattening wheel 208 on one side, so that the flattening wheels 208 on both sides can clamp the plastic bag. After adjustment, tighten the set screw 104 to lock and fix the slider 103. At this time, the first motor 204 starts, and its output drives the drive wheel 205 to rotate. The drive wheel 205 transmits power to the driven wheel 207 through the belt 206, so that the drive wheel 205 and the driven wheel 207 rotate in opposite directions at the same speed, thereby driving the flattening wheels 208 on both sides to rotate synchronously. When the plastic bag enters between the two continuously arranged flattening conveying mechanisms, the upper and lower flattening wheels 208 form uniform pressure on the plastic bag, gradually squeezing the wrinkles and air bubbles on the surface of the plastic bag during the conveying process. During this process, the operator can observe the flattening status of the plastic bag in the conveying trough 401 in real time through the transparent glass plate 402. If any abnormalities such as jamming or substandard flattening are found, the machine can be stopped immediately for processing. Finally, the plastic bag that has been double-flattened is sent out from the output end of the conveying trough 401.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic bag flattening device of a plastic bag production apparatus, comprising a mounting plate (1), characterized in that, The mounting plate (1) is provided with a connecting mounting mechanism, and the connecting mounting mechanism is provided with an adjustment mechanism, the adjustment mechanism comprising: A guide frame (101) is fixed to one side of the flattening conveying mechanism; A slide (102) is formed inside the guide frame (101); A slider (103) is disposed inside a groove (102); A set screw (104) is threadedly connected to the inside of the slider (103). A flattening conveying mechanism is provided on the lower side of the adjusting mechanism. The flattening conveying mechanism includes a first mounting frame (201) and a second mounting frame (202). A fixing plate (203) is fixedly connected to one side of the first mounting frame (201) and the second mounting frame (202). A first motor (204) is fixedly installed on one side of the fixing plate (203). A drive wheel (205) is fixedly connected to the output end of the first motor (204). A belt (206) is connected to the inside of the drive wheel (205). A driven wheel (207) is connected to the drive wheel (205) through the belt. A flattening wheel (208) is fixedly connected to one side of the drive wheel (205) and the driven wheel (207).

2. The plastic bag flattening device of a plastic bag production apparatus according to claim 1, characterized by: The slider (103) is slidably connected to the slide (102), the first mounting bracket (201) is fixedly connected to the lower side of the slider (103), and the second mounting bracket (202) is fixedly connected to the lower side of the guide bracket (101). There are two flattening and conveying mechanisms.

3. The plastic bag flattening device of the plastic bag production apparatus according to claim 1, characterized by, The connection and installation mechanism includes: A connecting frame (301) is fixedly connected to both sides of the guide frame (101); Placement plate (302) is fixedly connected to the lower end of the connecting frame (301).

4. The plastic bag flattening device of the plastic bag production apparatus according to claim 3, characterized by: The connecting frame (301) has a through-hole conveying groove (401) inside, and a transparent glass plate (402) is fixedly connected inside the connecting frame (301).

5. The plastic bag flattening device of the plastic bag production apparatus according to claim 3, characterized by The connecting installation mechanism is internally provided with an anti-slip mechanism, which includes: An inlay groove (501) is formed on the lower surface of the placement plate (302); A rubber pad (502) is fixedly connected inside the inlay groove (501); Anti-slip groove (503) is formed on the lower surface of the rubber pad (502).

6. The plastic bag flattening device of the plastic bag production apparatus according to claim 3, characterized by The connecting installation mechanism is internally equipped with a guiding mechanism, which includes: An electric push rod (601) is fixedly mounted on the top of the connecting frame (301); The first fixed bracket (602) is fixedly connected to the lower side of the electric push rod (601); The pressure roller (603) is rotatably connected to the inner side of the first fixed frame (602). The upper side of the placement plate (302) is fixedly connected to the second fixed frame (604). A second motor (605) is fixedly installed on one side of the second fixed frame (604). The output end of the second motor (605) is fixedly connected to the guide wheel (606).

7. The plastic bag flattening device of a plastic bag production apparatus according to claim 6, characterized by: The pressure roller (603) is located on the upper side of the guide wheel (606). There are two guide mechanisms, which are respectively located on the two sides inside the connecting and mounting mechanism. One end of the guide wheel (606) is rotatably connected to the second fixed frame (604).

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