Feeding mechanism for plastic packaging film production

Abstract

The utility model discloses a plastic packaging film production feeding mechanism, and relates to the field of plastic packaging film production, the plastic packaging film production feeding mechanism comprises a case, a feeding assembly, a rotating assembly and a compression roller, a push plate is driven to move through a threaded rod so as to drive a limiting frame to move, and through cooperation of a rectangular groove in the limiting frame and an arc-shaped groove in the limiting plate, the limiting frame is driven to move; a movable shaft and a clamped film rolling head are driven by a limiting pin to bypass the lower portion of a pressing roller from the upper portion of a rolling shaft to reach the horizontal position of the side, away from the rolling shaft, of the pressing roller, a worker does not need to bounce into the pressing roller to conduct shaft-winding installation on a rolled film, safety is improved, the two ends of the rolling shaft extrude pressing blocks, the pressing blocks are contained in inserting grooves in a rotating disc, and therefore the pressing efficiency is improved. The grooves in the two ends of the reel are matched with the limiting strips, the two ends of the reel are supported through the supporting strips, and after the reel is inserted into the limiting strips, the pressing blocks pop up under the action of the transverse springs, so that the reel is clamped and fixed, and the reel is convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of plastic packaging film production technology, and in particular to a plastic packaging film production material supply mechanism. Background Technology

[0002] Plastic packaging film, made of materials such as polyvinyl chloride and polyethylene, is used for packaging and as a coating layer. It is widely used in food, medicine, chemical and other fields, with food packaging accounting for the largest proportion, such as beverage packaging, frozen food packaging, cooked food packaging, fast food packaging, etc., bringing great convenience to people's lives.

[0003] The production process of plastic packaging film can be mainly divided into two parts: hot melt extrusion blow molding and secondary processing of semi-finished plastic film. After blow molding and winding, the semi-finished plastic film roll is produced. When it is further refined, the semi-finished film roll needs to be placed on the feeding mechanism, which then feeds the film evenly to the cutting machine and other processing equipment for secondary processing.

[0004] When installing film rolls using existing feeding mechanisms, workers need to manually place the film roll onto the feeding mechanism, then pass one end of the plastic film inside the roll around the pressure roller and send it into the processing equipment. During the process of the film roll passing around the pressure roller, workers need to hold the film roll and flick it into the inside of the pressure roller to move the film roll around the pressure roller. The installation is inconvenient and has certain safety risks. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a feeding mechanism for the production of plastic packaging film.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a plastic packaging film production feeding mechanism, including a machine box, a feeding component is arranged inside the machine box, a rotating component is arranged inside the machine box, and a pressure roller is arranged on the outer surface of the machine box;

[0009] The feeding assembly includes a threaded rod movably connected inside the chassis via a bearing seat. A push plate is threadedly connected to the outer surface of the threaded rod. Limit frames are fixedly connected to both ends of the push plate. Limit pins are movably connected inside the limit frames. Limit plates are movably connected to the outer surfaces of the limit pins. The limit plates are fixedly connected to the outer surface of the chassis. One end of the limit pin passes through the limit plate and is fixedly connected to a connecting plate. A movable shaft is movably connected to the end of the connecting plate away from the limit pin. An arc-shaped limit groove is provided inside the limit plate.

[0010] The rotating assembly includes a rotating disk movably connected to the side of the limiting plate away from the limiting frame via a connecting shaft. A limiting strip is fixedly connected to the side of the rotating disk away from the limiting frame. A support strip is fixedly connected to the bottom end of the limiting strip. A transverse spring is fixedly connected inside the rotating disk. A pressing block is fixedly connected to the end of the transverse spring away from the limiting frame. A scroll is slidably connected to the outer surface of the limiting strip. One of the rotating disks is fixedly connected to a driven gear through the limiting plate via the connecting shaft.

[0011] In a preferred embodiment of the plastic packaging film production and feeding mechanism of this utility model, a geared motor is fixedly connected inside the machine housing, a transmission gear is fixedly connected to the output end of the geared motor, a toothed transmission belt is connected between the transmission gear and the driven gear, a servo motor is fixedly connected inside the machine housing, and the output end of the servo motor is fixedly connected to one end of the threaded rod.

[0012] As a preferred embodiment of the plastic packaging film production feeding mechanism of this utility model, the arc-shaped limiting groove inside the limiting plate can drive the moving shaft from directly above the roll, around the bottom of the pressure roller, to a horizontal position away from the roll on the side of the pressure roller. The limiting frame is provided with a rectangular groove for the movement of the limiting pin. The height of the rectangular groove is the same as the height from the highest point to the lowest point of the arc-shaped limiting groove. The length of the threaded rod is the same as the distance from the leftmost end to the rightmost end of the arc-shaped limiting groove.

[0013] In a preferred embodiment of the plastic packaging film production feeding mechanism of this utility model, a limiting rod is inserted into the inside of the push plate and the top of the limiting frame, and both ends of the limiting rod are fixedly connected to the inner wall of the machine box.

[0014] As a preferred embodiment of the plastic packaging film production feeding mechanism of this utility model, the movable shaft is internally fixedly connected with two vertical springs, the top of the vertical springs abuts against a pressure plate, the outer surface of the movable shaft is provided with a cavity for lifting and lowering the pressure plate, the movable shaft is internally threaded with a bolt for squeezing the pressure plate, the outer surface of the movable shaft is provided with a circular piece for limiting the film roll, and the lower surface of the pressure plate and the upper surface of the movable shaft are both provided with soft clamping teeth.

[0015] As a preferred embodiment of the plastic packaging film production feeding mechanism of this utility model, the interior of the rotating disk is provided with a slot that cooperates with the pressing block, the inner wall of the slot is fixedly connected to one end of the transverse spring, and the depth of the slot is sufficient for the pressing block to be completely retracted into the slot.

[0016] As a preferred embodiment of the plastic packaging film production feeding mechanism of this utility model, the two ends of the roller are provided with grooves that cooperate with the limiting strip, and the outer surface of the support strip has an arc-shaped surface that cooperates with the outer surfaces of the two ends of the roller.

[0017] (III) Beneficial Effects

[0018] This utility model provides a feeding mechanism for the production of plastic packaging film. It has the following beneficial effects:

[0019] 1. The push plate is moved by the threaded rod, which in turn moves the limit frame. Through the cooperation of the rectangular groove inside the limit frame and the arc groove inside the limit plate, the moving shaft and the clamped film roll head are driven by the limit pin to move from the top of the roll, around the bottom of the pressure roller, and reach the horizontal position of the pressure roller away from the roll. This eliminates the need for workers to insert into the pressure roller to install the film around the shaft, thus improving safety.

[0020] 2. Press the two ends of the scroll to the clamping blocks, so that the clamping blocks are retracted into the slots inside the rotating disk. The grooves at both ends of the scroll cooperate with the limiting strips, and the two ends of the scroll are supported by the support strips. After the scroll is inserted into the limiting strips, the clamping blocks pop out under the action of the transverse spring, thereby clamping and fixing the scroll, which is convenient for installing the scroll. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the internal structure of the chassis of this utility model.

[0024] Figure 3 This is a schematic diagram of the feeding assembly of this utility model.

[0025] Figure 4 This is an exploded structural diagram of the movable shaft of this utility model.

[0026] Figure 5 This is a schematic diagram of the rotating component of this utility model.

[0027] Figure 6 This is a schematic diagram of the rotating disk of this utility model.

[0028] In the diagram, 1. Chassis; 2. Rotating assembly; 201. Clamping block; 202. Rotating disk; 203. Toothed transmission belt; 204. Transmission gear; 205. Gearbox; 206. Driven gear; 207. Reel; 208. Horizontal spring; 209. Limiting bar; 210. Support bar; 3. Pressure roller; 4. Feeding assembly; 401. Servo motor; 402. Moving shaft; 403. Limiting pin; 404. Limiting frame; 405. Push plate; 406. Limiting rod; 407. Threaded rod; 408. Connecting disk; 409. Limiting plate; 410. Vertical spring; 411. Pressure plate. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Example 1

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention. This embodiment provides a feeding mechanism for producing plastic packaging film, including a housing 1. A feeding assembly 4 and a rotating assembly 2 are arranged inside the housing 1. A pressure roller 3 is arranged on the outer surface of the housing 1. The feeding assembly 4 includes a threaded rod 407 movably connected to the inside of the housing 1 via a bearing seat. A push plate 405 is threadedly connected to the outer surface of the threaded rod 407. Both ends of the push plate 405 are fixedly connected to limit frames 404. Limit pins 403 are movably connected inside the limit frames 404. Limit plates 409 are movably connected to the outer surface of the limit pins 403. Limit plates 409 are fixedly connected to the outer surface of the housing 1. One end of the limit pins 403 passes through the limit plates 409 and is fixedly connected to a connecting plate 408. A moving shaft 402 is movably connected to the end of the connecting plate 408 away from the limit pins 403. An arc-shaped limit groove is provided inside the limit plates 409.

[0032] Specifically, a geared motor 205 is fixedly connected inside the housing 1. A transmission gear 204 is fixedly connected to the output end of the geared motor 205. A toothed transmission belt 203 is connected between the transmission gear 204 and the driven gear 206. A servo motor 401 is fixedly connected inside the housing 1. The output end of the servo motor 401 is fixedly connected to one end of the threaded rod 407. The arc-shaped limiting groove inside the limiting plate 409 can drive the moving shaft 402 from directly above the roller 207, around the bottom of the pressure roller 3, to a horizontal position on the side of the pressure roller 3 away from the roller 207. The limiting frame 404 has a rectangular groove inside for the movement of the limiting pin 403. The height of the rectangular groove is the same as the height from the highest point to the lowest point of the arc-shaped limiting groove. Similarly, the length of the threaded rod 407 is the same as the distance from the leftmost end to the rightmost end of the arc-shaped limiting groove. Limiting rods 406 are inserted into the inside of the push plate 405 and the top of the limiting frame 404. Both ends of the limiting rods 406 are fixedly connected to the inner wall of the housing 1. Two vertical springs 410 are fixedly connected inside the moving shaft 402. The top of the vertical springs 410 abuts against the pressure plate 411. A cavity for lifting and lowering the pressure plate 411 is opened on the outer surface of the moving shaft 402. A bolt for pressing the pressure plate 411 is threaded inside the moving shaft 402. A circular piece for limiting the film roll is set on the outer surface of the moving shaft 402. Soft clamping teeth are set on the lower surface of the pressure plate 411 and the upper surface of the moving shaft 402.

[0033] Furthermore, the film roll head on the outer surface of the roll 207 is pulled out through the gap between the pressure plate 411 and the moving shaft 402. Then, by tightening the bolts, the pressure plate 411 is pressed downwards, thereby clamping and fixing the film roll head. The servo motor 401 drives the push plate 405 to move through the threaded rod 407, thereby driving the limit frame 404 to move. Through the cooperation of the rectangular groove inside the limit frame 404 and the arc-shaped groove inside the limit plate 409, the moving shaft 402 and the clamped film roll head are driven by the limit pin 403 to move from above the roll 207, around the bottom of the pressure roller 3, to a horizontal position on the side of the pressure roller 3 away from the roll 207. The threaded rod 407... The length is the same as the distance from the leftmost end to the rightmost end of the arc-shaped limiting groove, so that the push plate 405 can drive the limiting pin 403 and the moving shaft 402 to complete a full stroke in the arc-shaped limiting groove through the limiting frame 404. The height of the rectangular groove inside the limiting frame 404 is the same as the height from the highest point to the lowest point of the arc-shaped limiting groove, which is sufficient for the limiting pin 403 to rise and fall. The moving shaft 402 can rotate relative to the connecting plate 408, so that after the moving shaft 402 rotates during the movement of the moving shaft 402 in the arc-shaped limiting groove inside the limiting plate 409 through the limiting pin 403, the worker can easily take out the film roll head by rotating the moving shaft 402.

[0034] Example 2

[0035] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The rotating component 2 includes a rotating disk 202 that is movably connected to the side of the limiting plate 409 away from the limiting frame 404 via a connecting shaft. A limiting strip 209 is fixedly connected to the side of the rotating disk 202 away from the limiting frame 404. A support strip 210 is fixedly connected to the bottom end of the limiting strip 209. A transverse spring 208 is fixedly connected inside the rotating disk 202. A pressing block 201 is fixedly connected to the end of the transverse spring 208 away from the limiting frame 404. A scroll 207 is slidably connected to the outer surface of the limiting strip 209. One of the rotating disks 202 is fixedly connected to a driven gear 206 through the limiting plate 409 via a connecting shaft.

[0036] Specifically, the rotating disk 202 has a slot inside that cooperates with the clamping block 201. The inner wall of the slot is fixedly connected to one end of the transverse spring 208. The depth of the slot is sufficient for the clamping block 201 to be fully inserted into the slot. The two ends of the scroll 207 have grooves that cooperate with the limiting strip 209. The outer surface of the support strip 210 has an arc-shaped surface that cooperates with the outer surfaces of the two ends of the scroll 207.

[0037] Furthermore, the two ends of the scroll 207 are pressed against the clamping blocks 201, causing the clamping blocks 201 to retract into the slots inside the rotating disk 202. The grooves at both ends of the scroll 207 engage with the limiting strips 209, and the support strips 210 support both ends of the scroll 207. After the scroll 207 is inserted into the limiting strips 209, the clamping blocks 201 pop out under the action of the transverse spring 208, thereby clamping and fixing the scroll 207. The clamping blocks 201 can drive the transverse spring 208 to retract completely into the slots inside the rotating disk 202, thus not affecting the installation of the scroll 207.

[0038] Working principle: During the secondary processing of semi-finished plastic packaging film, the semi-finished film roll is blow-molded and then wound onto the outer surface of the roll 207. The two ends of the roll 207 are then pressed against the clamping blocks 201, causing the clamping blocks 201 to retract into the slots inside the rotating disk 202. The grooves at both ends of the roll 207 engage with the limiting strips 209, and the support strips 210 support both ends of the roll 207. After the roll 207 is inserted onto the limiting strips 209, the clamping blocks 201 pop out under the action of the transverse spring 208, thus clamping and fixing the roll 207. Then, the film head on the outer surface of the roll 207 is pulled out and passes through the gap between the pressure plate 411 and the moving shaft 402. Tightening the bolts causes the pressure plate 411 to press downwards, thus clamping and fixing the film head. Then, the reduction motor 205 and the servo motor 401 start simultaneously. The servo motor 401 drives the push plate 405 to move via the threaded rod 407, thereby moving the limiting frame. The movement of the 404 mechanism involves the engagement of a rectangular groove inside the limiting frame 404 and an arc-shaped groove inside the limiting plate 409. Through the limiting pin 403, the moving shaft 402 and the clamped film roll head move from above the roll 207, around the pressure roller 3, to a horizontal position on the side of the pressure roller 3 away from the roll 207. Simultaneously, the reduction motor 205 drives the transmission gear 204 to rotate. The transmission gear 204, via the toothed transmission belt 203, drives the driven gear 206 to rotate, thereby rotating the roll 207 and causing the film roll to rotate and be fed out. After the moving shaft 402 reaches the horizontal position on the side of the pressure roller 3 away from the roll 207, the bolts are tightened to slightly loosen the pressure plate 411, facilitating the removal of the plastic film head and its connection with the processing equipment. This completes the installation of the film roll, simplifying secondary processing and eliminating the need for workers to insert themselves into the pressure roller 3 for installation around the shaft. The synchronous rotation of the roll 207 also prevents excessive tension on the film roll, which could lead to tearing.

[0039] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A feeding mechanism for producing plastic packaging film, comprising a housing (1), characterized in that: The machine housing (1) is equipped with a feeding assembly (4) inside, a rotating assembly (2) inside, and a pressure roller (3) on the outer surface of the machine housing (1). The feeding assembly (4) includes a threaded rod (407) movably connected to the inside of the housing (1) via a bearing seat. A push plate (405) is threadedly connected to the outer surface of the threaded rod (407). Both ends of the push plate (405) are fixedly connected to a limit frame (404). A limit pin (403) is movably connected inside the limit frame (404). A limit plate (409) is movably connected to the outer surface of the limit pin (403). The limit plate (409) is fixedly connected to the outer surface of the housing (1). One end of the limit pin (403) passes through the limit plate (409) and is fixedly connected to a connecting plate (408). A moving shaft (402) is movably connected to the end of the connecting plate (408) away from the limit pin (403). An arc-shaped limit groove is provided inside the limit plate (409). The rotating assembly (2) includes a rotating disk (202) movably connected to the side of the limiting plate (409) away from the limiting frame (404) via a connecting shaft. A limiting strip (209) is fixedly connected to the side of the rotating disk (202) away from the limiting frame (404). A support strip (210) is fixedly connected to the bottom end of the limiting strip (209). A transverse spring (208) is fixedly connected inside the rotating disk (202). A pressing block (201) is fixedly connected to the end of the transverse spring (208) away from the limiting frame (404). A scroll (207) is slidably connected to the outer surface of the limiting strip (209). One of the rotating disks (202) is fixedly connected to a driven gear (206) through the limiting plate (409) via a connecting shaft.

2. The plastic packaging film production feeding mechanism according to claim 1, characterized in that: A geared motor (205) is fixedly connected inside the chassis (1). A transmission gear (204) is fixedly connected to the output end of the geared motor (205). A toothed transmission belt (203) is connected between the transmission gear (204) and the driven gear (206). A servo motor (401) is fixedly connected inside the chassis (1). The output end of the servo motor (401) is fixedly connected to one end of a threaded rod (407).

3. The plastic packaging film production feeding mechanism according to claim 2, characterized in that: The arc-shaped limiting groove inside the limiting plate (409) can drive the moving shaft (402) from directly above the reel (207) and around the pressure roller (3) to a horizontal position on the side of the pressure roller (3) away from the reel (207). The limiting frame (404) is provided with a rectangular groove for the movement of the limiting pin (403). The height of the rectangular groove is the same as the height from the highest point to the lowest point of the arc-shaped limiting groove. The length of the threaded rod (407) is the same as the distance from the leftmost end to the rightmost end of the arc-shaped limiting groove.

4. The plastic packaging film production feeding mechanism according to claim 3, characterized in that: Limiting rods (406) are inserted into the inside of the push plate (405) and the top of the limiting frame (404), and both ends of the limiting rods (406) are fixedly connected to the inner wall of the chassis (1).

5. A plastic packaging film production feeding mechanism according to claim 4, characterized in that: Two vertical springs (410) are fixedly connected inside the movable shaft (402). The top of the vertical spring (410) abuts against the pressure plate (411). A cavity for lifting and lowering the pressure plate (411) is opened on the outer surface of the movable shaft (402). A bolt for pressing the pressure plate (411) is threaded inside the movable shaft (402). A circular piece for limiting the winding of the film is provided on the outer surface of the movable shaft (402). Soft clamping teeth are provided on the lower surface of the pressure plate (411) and the upper surface of the movable shaft (402).

6. The plastic packaging film production feeding mechanism according to claim 5, characterized in that: The rotating disk (202) has a slot inside that cooperates with the clamping block (201). The inner wall of the slot is fixedly connected to one end of the transverse spring (208). The depth of the slot is sufficient for the clamping block (201) to be completely inserted into the slot.

7. A plastic packaging film production feeding mechanism according to claim 6, characterized in that: The two ends of the scroll (207) are provided with grooves that cooperate with the limiting strip (209), and the outer surface of the support strip (210) has an arc-shaped surface that cooperates with the outer surfaces of the two ends of the scroll (207).

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