A film covering method for a cold-stretchable film structure

Abstract

The present invention relates to the technical field of sheathing films, and specifically to a cold-drawing sheathing film structure and method. A cold-drawing sheathing film structure is characterized in that it includes a pallet conveying mechanism, a tubular film supporting mechanism, a tubular film conveying mechanism, and a tubular film lifting mechanism. The tubular film conveying mechanism is arranged outside the pallet conveying mechanism, the tubular film supporting mechanism is arranged outside the tubular film conveying mechanism, and the tubular film lifting mechanism is arranged outside the tubular film supporting mechanism. Compared with the prior art, the sheathing film cycle is shortened, the production capacity is improved, no additional material turning mechanism is required, and the process of sheathing the material without a pallet is shortened to two sheathing processes, thereby improving the working efficiency and meeting the requirement of increasing the production capacity.

Description

Technical Field

[0001] The invention relates to the technical field of sleeve films, in particular to a sleeve film method for a cold-stretched sleeve film structure. Background Art

[0002] Existing stretch hooding machines apply a film tube vertically downward from the top of the packaged material to the bottom. When stretch hooding materials stacked without pallets, the tube must be draped over the material to facilitate transport and protect it from moisture. The process involves three steps: initial hooding, 180° flipping of the package, and a second hooding. This method requires multiple steps, increases material flipping time, and reduces efficiency, making it inefficient and unable to meet the needs of increasing production capacity. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a hooding method for a cold-stretched hooding structure in which a tubular film is vertically hooded from the bottom of a packaged material to the top.

[0004] To achieve the above object, a method for cold-stretching a hood structure is designed, which is characterized by comprising: a support plate conveying mechanism, a tubular film supporting mechanism, a tubular film conveying mechanism, and a tubular film lifting mechanism; the tubular film conveying mechanism is provided on the outer side of the support plate conveying mechanism, the tubular film supporting mechanism is provided on the outer side of the tubular film conveying mechanism, and the tubular film lifting mechanism is provided on the outer side of the tubular film supporting mechanism;

[0005] The method comprises the following steps:

[0006] S1, the tubular membrane to be sheathed is sheathed on the tubular membrane support mechanism, and the tubular membrane lifting mechanism drives the tubular membrane support mechanism and the tubular membrane to descend to the tubular membrane conveying mechanism;

[0007] S2, the tubular membrane support mechanism is connected and clamped with the tubular membrane conveying mechanism, while ensuring that the tubular membrane lifting mechanism and the tubular membrane support mechanism are in a loose state,

[0008] S3, the support plate conveying mechanism and the tube film conveying mechanism operate synchronously, driving the tube film to move to the position where the film material is to be connected;

[0009] S4, the pallet conveying mechanism and the tube film conveying mechanism continue to operate synchronously. After reaching the docking position, the material is transferred to the pallet conveying mechanism. At the same time, the tube film is synchronously conveyed to the bottom of the material. After reaching the film covering position, the tube film support mechanism is connected and clamped with the tube film lifting mechanism, and the tube film conveying mechanism is released. The tube film lifting mechanism drives the tube film support mechanism to lift, and the tube film is vertically covered from the bottom of the material to the top.

[0010] The tubular membrane support mechanism includes a support frame, which is provided at the four corners outside the tubular membrane conveying mechanism. The support frame is connected or separated from the tubular membrane lifting mechanism through clamping device 1, and is connected or separated from the tubular membrane conveying mechanism through clamping device 2.

[0011] The described tubular film conveying mechanism includes an annular track, rollers, and a roller frame. The annular track is provided with rollers, the rollers are fixed on one side of the roller frame, the other side of the roller frame is connected to the tubular film support mechanism through a second clamping device, and one end of the roller is connected to a servo motor.

[0012] One end of the described roller frame is connected to a tensioning electric cylinder.

[0013] The tubular film conveying mechanism further includes a grating encoder. The grating scale of the grating encoder is located on the outer surface of the annular track, and the reading head of the grating encoder is fixed on the roller.

[0014] The inner side of the described annular track is serrated, and a gear matching the annular track is provided at the lower end of the roller frame.

[0015] The described tubular film lifting mechanism includes a connecting arm and a lifting module. One end of the connecting arm is connected to or separated from the tubular film support mechanism through a first clamping device, and the other end of the connecting arm is connected to the lifting module.

[0016] It further includes a detection device. The detection device includes a pallet detection sensor and a tubular film detection sensor. The pallet detection sensor is provided on the lower side and the side of the pallet of the pallet conveying mechanism, and the tubular film detection sensor is provided on the roller frame of the tubular film conveying mechanism.

[0017] It further includes a material conveyor. The material conveyor is arranged at one end of the pallet conveying mechanism, and a transition piece is provided between the material conveyor and the pallet conveying mechanism.

[0018] A material detection sensor is provided on one side of the described material conveyor.

[0019] Compared with the prior art, the present invention shortens the film sleeving cycle, improves the production capacity, does not require an additional material turning mechanism, and the process of sleeving the material without a pallet is shortened to two film sleeving processes, improving the work efficiency and meeting the requirement of increasing the production capacity. Description of the Drawings

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is Figure 1 the front view of

[0022] Figure 3 It is Figure 1 the side view of

[0023] Figure 4 It is Figure 1 the top view of

[0024] Figure 5 It is a structural schematic diagram of the present invention when the support frame and the connecting arm are connected and clamped.

[0025] Figure 6 This is a partial enlarged view of the tube film lifting mechanism of the present invention.

[0026] Figure 7 This is a schematic structural diagram when the support frame and the roller frame are connected and clamped.

[0027] Figure 8 It is Figure 7 a partial enlarged view of the Z position in

[0028] Figure 9 It is Figure 7 a partial enlarged view of the Y position in

[0029] Figure 10 This is a schematic structural diagram of the pallet conveying mechanism of the present invention.

[0030] Figure 11 This is a schematic structural diagram of steps S1 and S2 of the present invention.

[0031] Figure 12 This is a schematic structural diagram of step S3 of the present invention.

[0032] Figure 13 This is a schematic structural diagram of step S4 of the present invention.

[0033] Figure 14 This is a schematic structural diagram of the transition part of the present invention. Embodiment

[0034] The following further describes the present invention with reference to the accompanying drawings. Example

[0035] As Figures 1 to 4 shown, a tube film conveying mechanism 3 is provided outside the pallet conveying mechanism 1, a tube film supporting mechanism 2 is provided outside the tube film conveying mechanism 3, and a tube film lifting mechanism 5 is provided outside the tube film supporting mechanism 2.

[0036] As Figure 5 , Figure 7 shown, the tube film supporting mechanism 2 includes a support frame 2-1. The support frames 2-1 are provided at the four corners outside the tube film conveying mechanism 3. The support frame 2-1 is connected or separated from the tube film lifting mechanism 5 through a clamping device 2-2, and the support frame 2-1 is connected or separated from the tube film conveying mechanism 3 through a clamping device 3-10. The clamping device 2-2 and the clamping device 3-10 in this embodiment are purchased parts, and the clamping device of the WVS-MD series is selected. The clamping device includes a clamping head and a clamping and positioning seat. In this embodiment, the clamping and positioning seat is fixed on the support frame 2-1, and the clamping heads of the clamping device are respectively fixedly connected to the connecting arm 5-1 of the tube film lifting mechanism 5 and the roller frame 3-3 of the tube film conveying mechanism 3. When clamping or loosening is required, the clamping head cooperates with the clamping and positioning seat to clamp or loosen.

[0037] As shown Figures 7 to 9 in FIG. 1, the tubular film conveying mechanism 3 includes an annular rail 3-1, rollers 3-2, and a roller frame 3-3. The annular rail 3-1 is provided with the rollers 3-2. The rollers 3-2 are fixed to one side of the roller frame 3-3. The other side of the roller frame 3-3 is connected to the tubular film support mechanism 2 through a second clamping device 3-10. One end of the rollers 3-2 is connected to a servo motor 3-4. When the tubular film conveying mechanism 3 moves, the servo motor 3-4 drives the rollers 3-2 to move on the annular rail 3-1, and drives the support frame 2-1 of the tubular film support mechanism 2 to move along the annular rail 3-1 through the roller frame 3-3 and the second clamping device 3-10, thereby driving the tubular film 6 to move.

[0038] In this embodiment, the number of the annular rails 3-1 is two, and the two annular rails 3-1 are respectively located on the left and right sides of the pallet conveying mechanism 1.

[0039] One end of the roller frame 3-3 is connected to a tensioning electric cylinder 3-5, which plays a tensioning role to prevent looseness between the roller frame 3-3, the rollers 3-2 and the annular rail 3-1.

[0040] The tubular film conveying mechanism 3 further includes a grating encoder. The grating scale 3-6 of the grating encoder is attached to the outer surface of the annular rail 3-1, and the reading head 3-9 of the grating encoder is fixed on the rollers 3-2. When the rollers 3-2 move, they drive the reading head 3-9 to move. During the movement of the reading head, signals at different positions on the grating scale 3-6 are read, and the position of the tubular film support mechanism 2 can be detected. By cooperating with the motor encoder of the pallet conveyor 1, it is convenient to detect and adjust the relative position between the support frame 2-1 and the pallet 1-1.

[0041] The inner side of the annular rail 3-1 is serrated, and a gear 3-7 matching the annular rail 3-1 is provided at the lower end of the roller frame 3-3. During the movement of the roller frame 3-3, the gear 3-7 moves inside the annular rail 3-1 to prevent deviation.

[0042] As shown Figure 6 in FIG. 2, the tubular film lifting mechanism 5 includes a connecting arm 5-1 and a lifting module 5-2. One end of the connecting arm 5-1 is connected or separated from the tubular film support mechanism 2 through a first clamping device 2-2. The other end of the connecting arm 5-1 is connected to the lifting module 5-2. The lifting module 5-2 drives the tubular film support mechanism 2 to perform lifting movement along the column 5-3 through the connecting arm 5-1.

[0043] As shown Figure 10 in FIG. 3, the pallet conveying mechanism 1 includes a pallet 1-1, a driving motor 1-2, and a chain 1-3. The chain 1-3 moves under the action of the driving motor 1-2, thereby driving the pallet 1-1 to be conveyed. A frame 1-4 is provided outside the chain 1-3.

[0044] As shown Figure 8 、 Figure 10As shown, the apparatus also includes a detection device, comprising a pallet detection sensor 1-5 and a tubular membrane detection sensor 3-8. Pallet detection sensors 1-5 are located on the underside and side of pallet 1-1 of pallet conveying mechanism 1. Pallet detection sensors 1-5 are positioned at the extremes of the pallet's range of motion to ensure that pallet 1-1 does not move beyond this range. A tubular membrane detection sensor 3-8 is located on the roller frame 3-3 of the tubular membrane conveying mechanism 3. This sensor is used to detect whether the tubular membrane 6 has detached from the support frame 2-1.

[0045] like Figure 11 、 Figure 14 As shown, the film covering structure of this embodiment also includes a material conveyor 4, which is disposed at one end of the pallet conveying mechanism 1. Material 7 to be covered is transferred from the material conveyor 4 to the pallet conveying mechanism 1. A transition member 8 is provided between the material conveyor 4 and the pallet conveying mechanism 1. The transition member 8 can be an unpowered transition roller or a slide plate to transfer the material to the pallet 1-1 of the pallet conveying mechanism 1.

[0046] A material detection sensor 4-1 is provided on one side of the material conveyor 4. In this embodiment, three pairs of material detection sensors 4-1 are evenly distributed on one side of the material conveyor 4. When the material 7 moves on the material conveyor 4, the three pairs of material detection sensors 4-1 are continuously triggered to match the material transportation speed and position. The data is then transmitted to the pallet conveyor mechanism 1, causing the material conveyor 4 to reach the predetermined unloading position and connect with the pallet conveyor mechanism 1 at the same speed.

[0047] like Figures 11 to 14 As shown, the encapsulation method of this embodiment includes the following steps:

[0048] S1, through the previous process, the tubular membrane 6 to be sleeved is sleeved on the tubular membrane support mechanism 2, and then the tubular membrane lifting mechanism 5 drives the tubular membrane support mechanism 2 and the tubular membrane 6 to descend to the roller frame 3-3 of the tubular membrane conveying mechanism 3;

[0049] S2, the support frame 2-1 is connected and clamped with the roller frame 3-3 of the tubular membrane conveying mechanism 3 through the clamping device 2 3-10, while ensuring that the connecting arm 5-1 of the tubular membrane lifting mechanism 5 and the support frame 2-1 are in a loose state.

[0050] S3, the support plate 1-1 of the support plate conveying mechanism 1 and the roller frame 3-3 of the tubular film conveying mechanism 3 run synchronously at the same speed, and the tubular film 6 runs at the same speed, and the relative positions of the support plate 1-1 and the tubular film 6 remain fixed until the tubular film 6 moves to the position where the tubular film material 7 is to be connected;

[0051] S4, the pallet conveying mechanism 1 and the tubular membrane conveying mechanism 3 continue to operate synchronously. After reaching the docking position, the material 7 is transferred to the pallet 1-1 of the pallet conveying mechanism 1. At the same time, the tubular membrane 6 is synchronously conveyed to the bottom of the material 7. At this time, the material 7 is pressed on the tubular membrane 6, and the four corners of the tubular membrane 6 are still covered on the support frame 2-1. The pallet conveying mechanism 1 and the tubular membrane conveying mechanism 3 operate synchronously at the same speed. At this time, the relative position of the pallet 1-1 and the tubular membrane 6 is fixed. After reaching the membrane position, the support frame 2-1 of the tubular membrane support mechanism 2 is passed. The clamping device 1 2-2 is connected and clamped with the connecting arm 5-1 of the tubular membrane lifting mechanism 5, and then the clamping device 2 3-10 is loosened, so that the support frame 2-1 and the roller frame 3-3 are loosened, and the lifting module 5-2 of the tubular membrane lifting mechanism 5 drives the support frame 2-1 of the tubular membrane support mechanism 2 to lift through the connecting arm 5-1. In the process of the support frame 2-1 driving the four corners of the tubular membrane 6 to lift upward, the tubular membrane 6 is released from the bottom to the top. Since the tubular membrane 6 is elastic, it is automatically tightened on the material 7 after being released to complete the wrapping of the material 7.

Claims

1. A film covering method for a cold stretchable film structure, characterized in that: It comprises a support plate conveying mechanism (1), a tubular membrane supporting mechanism (2), a tubular membrane conveying mechanism (3), and a tubular membrane lifting mechanism (5); the tubular membrane conveying mechanism (3) is provided on the outside of the support plate conveying mechanism (1); the tubular membrane supporting mechanism (2) is provided on the outside of the tubular membrane conveying mechanism (3); and the tubular membrane lifting mechanism (5) is provided on the outside of the tubular membrane supporting mechanism (2); The method comprises the following steps: S1, the tubular membrane (6) to be sheathed is sheathed on the tubular membrane support mechanism (2), and the tubular membrane lifting mechanism (5) drives the tubular membrane support mechanism (2) and the tubular membrane (6) to descend to the tubular membrane conveying mechanism (3); S2, the tubular membrane support mechanism (2) and the tubular membrane conveying mechanism (3) are connected and clamped, while ensuring that the tubular membrane lifting mechanism (5) and the tubular membrane support mechanism (2) are in a loose state, S3, the support plate conveying mechanism (1) and the tube film conveying mechanism (3) operate synchronously, driving the tube film (6) to move to the position where the tube film material (7) is to be connected; S4, the pallet conveying mechanism (1) and the tube film conveying mechanism (3) continue to operate synchronously, and after reaching the docking position, the material (7) is transferred to the pallet conveying mechanism (1), and at the same time, the tube film (6) is synchronously conveyed to the bottom of the material (7). arrive After reaching the envelope position, the membrane support mechanism (2) is connected and clamped to the membrane lifting mechanism (5), and the membrane conveying mechanism (3) is released. The membrane lifting mechanism (5) drives the membrane support mechanism (2) to be lifted, and the membrane (6) is vertically enveloped from the bottom of the material (7) to the top.

2. The sheathing method of a cold-stretch sheathing film structure according to claim 1, characterized in that: The tubular membrane support mechanism (2) includes a support frame (2-1), which is provided at the four corners outside the tubular membrane transport mechanism (3). The support frame (2-1) is connected to or separated from the tubular membrane lifting mechanism (5) through a clamping device 1 (2-2), and the support frame (2-1) is connected to or separated from the tubular membrane transport mechanism (3) through a clamping device 2 (3-10).

3. A film sleeving method for a cold-stretch film structure according to claim 1, characterized in that: The tubular membrane conveying mechanism (3) comprises a ring rail (3-1), a roller (3-2), and a roller frame (3-3). The ring rail (3-1) is provided with a roller (3-2). The roller (3-2) is fixed to one side of the roller frame (3-3). The other side of the roller frame (3-3) is connected to the tubular membrane supporting mechanism (2) through a second clamping device (3-10). A servo motor (3-4) is connected to one end of the roller (3-2).

4. A method for sheathing a cold-stretch sheathing film structure according to claim 3, characterized in that: One end of the roller frame (3-3) is connected to the tensioning electric cylinder (3-5).

5. A method for sheathing film of a cold-stretching sheathing film structure according to claim 3, characterized in that: The tubular membrane conveying mechanism (3) further comprises a grating encoder, wherein the grating scale (3-6) of the grating encoder is located on the outer surface of the ring track (3-1), and the reading head (3-9) of the grating encoder is fixed on the roller (3-2).

6. The sheathing method of a cold-stretch sheathing film structure according to claim 3, characterized in that: The inner side of the ring rail (3-1) is zigzag-shaped, and the lower end of the roller frame (3-3) is provided with a gear (3-7) that matches the ring rail (3-1).

7. A method for sheathing a cold-stretch sheathing film structure according to claim 1, characterized in that: The tubular membrane lifting mechanism (5) comprises a connecting arm (5-1) and a lifting module (5-2). One end of the connecting arm (5-1) is connected to or separated from the tubular membrane supporting mechanism (2) via a clamping device (2-2), and the other end of the connecting arm (5-1) is connected to the lifting module (5-2).

8. A method for sheathing film with a cold stretching sheathing film structure according to claim 1, characterized in that: The invention also includes a detection device, which includes a support plate detection sensor (1-5) and a tubular membrane detection sensor (3-8). The support plate detection sensor (1-5) is provided on the lower side and side of the support plate (1-1) of the support plate conveying mechanism (1), and the tubular membrane detection sensor (3-8) is provided on the roller frame (3-3) of the tubular membrane conveying mechanism (3).

9. A film covering method for a cold stretchable film structure according to claim 1, characterized in that: It also includes a material conveyor (4), which is arranged at one end of the pallet conveying mechanism (1), and a transition piece (8) is provided between the material conveyor (4) and the pallet conveying mechanism (1).

10. A method for sheathing a cold-drawn sheath film structure according to claim 9, characterized in that: A material detection sensor (4-1) is provided on one side of the described material conveyor (4).

Images