A folding wrapping machine

Abstract

This utility model discloses a folding wrapping machine, including a feeding mechanism for supplying roll protective film, a support plate for carrying the product to be wrapped, a film folding plate for folding the protective film in half, a one-way pressing mechanism for pressing the protective film rolled out by the feeding mechanism in one direction, a two-way pressing mechanism for pressing the protective film in two directions, a film cutting mechanism for cutting the protective film, and a film pulling mechanism for pulling the protective film. This can replace manual wrapping operations and avoid contamination of the surface of the wrapped product.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a folding coating machine. Background Technology

[0002] In the injection molding process of headphone parts, since the surface of the headphone parts requires a mirror finish, a protective film needs to be applied to them after molding before they are transported. This ensures that the protective film isolates dust particles in the air, prevents scratches caused by collisions between products during transport, and allows for easy removal of the film in later processes.

[0003] Currently, the protective film is often wrapped around headphone parts manually. This method can easily contaminate the surface of the wrapped product, thus affecting the mirror effect of the headphone product. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a folding wrapping machine to replace manual wrapping operations, thereby preventing contamination of the wrapped product surface.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] This utility model provides a folding wrapping machine, including a feeding mechanism for supplying roll protective film, a support plate for carrying the product to be wrapped, a film folding plate for folding the protective film in half, a one-way pressing mechanism for unidirectionally pressing the protective film rolled out by the feeding mechanism, a two-way pressing mechanism for bidirectionally pressing the protective film, a film cutting mechanism for cutting the protective film, and a film pulling mechanism for pulling the protective film. The film cutting mechanism is disposed between the one-way pressing mechanism and the two-way pressing mechanism. The film pulling mechanism includes movable grippers for gripping the protective film and can switch between a pull-out position for gripping the protective film on the one-way pressing mechanism, a cutting position for cutting the protective film, and a wrapping position for placing a portion of the cut protective film on the support plate. The film folding plate is disposed between the two-way pressing mechanism and the support plate, and in the wrapping position, the film folding plate folds the cut protective film in half to wrap the product to be wrapped on the support plate.

[0007] Furthermore, it also includes a diaphragm folding drive assembly, which includes a first rotary cylinder that drives the diaphragm folding plate to flip the diaphragm folding plate until it covers the support plate.

[0008] Furthermore, at least one side of the support plate is provided with a first limiting member for limiting the flipping angle of the diaphragm folding plate; the diaphragm folding plate is provided with a vacuum adsorption hole for adsorbing the protective film.

[0009] Furthermore, it also includes a receiving box and a flipping assembly for flipping the carrier plate; the flipping assembly includes a second rotary cylinder, which drives the carrier plate to flip the carrier plate, thereby conveying the film-coated products on the carrier plate to the receiving box; a sloping chute connecting the inlet of the receiving box is provided below the carrier plate.

[0010] Furthermore, the support plate is provided with air passages that can provide positive and negative pressure; at least one side of the support plate is provided with a second limiting member for limiting its flipping angle to ensure that it flips back to its initial position.

[0011] Furthermore, the film stretching mechanism also includes a track and a stepper motor and a mounting frame mounted on the track, with the gripper mounted on the mounting frame; the stepper motor drives the mounting frame to move back and forth on the track, and synchronously drives the gripper to move accordingly.

[0012] Furthermore, the unidirectional pressing mechanism includes a first pressing cylinder and two first pressing blocks; the lifting end of the first pressing cylinder is equipped with one of the first pressing blocks, and the other first pressing block is fixedly set; the first pressing cylinder drives one of the first pressing blocks away from or presses against the other first pressing block; and when the two first pressing blocks press against each other, the protective film rolled out by the feeding mechanism is sandwiched between the two first pressing blocks.

[0013] Furthermore, the two first pressure blocks are provided with clearance notches to avoid the gripping movement of the grippers.

[0014] Furthermore, the bidirectional pressing mechanism includes an upper lifting cylinder and a second lower pressing cylinder arranged opposite to each other, as well as two second pressing blocks; one of the second pressing blocks is mounted on the lifting end of the upper lifting cylinder, and the other second pressing block is mounted on the lifting end of the second lower pressing cylinder; the upper lifting cylinder and the second lower pressing cylinder cooperate to drive the two second pressing blocks away from each other or press them together; and when the two first pressing blocks and the two second pressing blocks press together with each other simultaneously, the film cutting mechanism cuts the protective film located between the unidirectional pressing mechanism and the bidirectional pressing mechanism.

[0015] Furthermore, the film cutting mechanism includes a transverse cylinder and a cutting blade mounted on the transverse end of the transverse cylinder; the transverse cylinder drives the cutting blade to move transversely to cut the protective film located between the unidirectional pressing mechanism and the bidirectional pressing mechanism.

[0016] The technical solution provided by this utility model has the following beneficial effects:

[0017] This invention uses machine wrapping to replace manual wrapping, thus avoiding contamination of the wrapped product surface and ensuring the mirror finish of the injection-molded product. It also effectively improves packaging yield and saves labor costs. Attached Figure Description

[0018] Figure 1 The diagram shown is a schematic of the folding wrapping machine when the protective film is pulled out in the embodiment.

[0019] Figure 2 The figure shown is a cross-sectional view of the folding wrapping machine in the embodiment;

[0020] Figure 3 The image shown is a partial schematic diagram of the folding wrapping machine in the embodiment;

[0021] Figure 4 The diagram shown is a schematic of the film-pulling mechanism in the embodiment. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0024] Reference Figures 1 to 4 This embodiment provides a folding wrapping machine (hereinafter referred to as a wrapping machine) for folding and wrapping electrostatic film (i.e. a protective film) around products to be wrapped (such as injection-molded earphones that need protection) before transferring them.

[0025] like Figure 1As shown, the wrapping machine of this embodiment includes a frame 11, a take-up box 9, a feeding mechanism 1 for supplying roll protective film, a one-way pressing mechanism 4 for one-way pressing the protective film 10 rolled out by the feeding mechanism 1, a two-way pressing mechanism 5 for two-way pressing the protective film 10, a film cutting mechanism 6 for cutting the protective film 10, a carrier plate 2 for carrying the product to be wrapped, a flipping assembly 12 for flipping the carrier plate 2, a film folding plate 3 for folding the protective film, a film folding drive assembly 8 for flipping the film folding plate 3, and a film pulling mechanism 7 for pulling the protective film 10. The take-up box 9, the feeding mechanism 1, the one-way pressing mechanism 4, the two-way pressing mechanism 5, the film cutting mechanism 6, the carrier plate 2, the flipping assembly 12, the film folding plate 3, the film folding drive assembly 8, and the film pulling mechanism 7 are respectively mounted on the frame 11. The film folding plate 3 is provided with a vacuum adsorption hole for adsorbing the protective film, and the carrier plate 2 is provided with an air passage hole that can provide positive and negative pressure.

[0026] like Figures 1 to 3 As shown, the film cutting mechanism 6 includes a transverse cylinder 61 and a cutting blade 62 mounted on the transverse end of the transverse cylinder 61, and the cutting blade 62 is disposed between the one-way pressing mechanism 4 and the two-way pressing mechanism 5.

[0027] like Figure 1 and Figure 4 As shown, the film-pulling mechanism 7 includes a track 72, a movable gripper 71, a stepper motor 74 mounted on the track 72, and a mounting frame 73. The gripper 71 is mounted on the mounting frame 73 and is used to grip the protective film. The stepper motor 74 drives the mounting frame 73 to move back and forth on the track 72, and synchronously drives the gripper 71 to move accordingly. It can switch between the pull-out position of gripping the protective film on the one-way pressing mechanism 4, the cutting position of cutting the protective film, and the wrapping position of placing the rear half of the cut protective film on the carrier plate 2. The pull-out position, cutting position, and wrapping position of the wrapping machine are arranged sequentially from front to back.

[0028] The diaphragm folding plate 3 is positioned between the bidirectional pressing mechanism 5 and the carrier plate 2. One side of the carrier plate 2 is equipped with an end effector of a six-axis robot to place the product to be wrapped on the surface of the cut protective film already in the wrapping position on the carrier plate 2. Then, the diaphragm folding plate 3 folds the cut protective film in half, thereby wrapping the product to be wrapped on the carrier plate 2. This can prevent surface scratches, dirt and other defects from occurring on the headphone product.

[0029] In this embodiment, as Figure 2 and Figure 3As shown, the one-way pressing mechanism 4 includes a first pressing cylinder 41 and two first pressing blocks 42 arranged opposite each other at the top and bottom. The lifting end of the first pressing cylinder 41 is equipped with one of the first pressing blocks 42, and the other first pressing block 42 is fixedly installed on the frame 11.

[0030] When the first pressing cylinder 41 drives one of the first pressing blocks 42 to press against the other first pressing block 42, the protective film rolled out by the feeding mechanism 1 is sandwiched between the two first pressing blocks 42. At this time, the protective film is in the pulled-out position, which can initially limit the end position of the roll protective film.

[0031] When the first pressing cylinder 41 drives one of the first pressing blocks 42 away from the other first pressing block 42, the protective film is no longer clamped, thus allowing the protective film to be pulled by the film pulling mechanism 7 toward the film wrapping position.

[0032] like Figure 2 and Figure 3 As shown, the bidirectional pressing mechanism 5 includes an upper lifting cylinder 52 and a lower pressing cylinder 51 arranged opposite each other, as well as two second pressing blocks 53. One of the second pressing blocks 53 is mounted on the lifting end of the upper lifting cylinder 52, and the other second pressing block 53 is mounted on the lifting end of the second lower pressing cylinder 51. Through the joint cooperation of the upper lifting cylinder 52 and the second lower pressing cylinder 51, the two second pressing blocks 53 are driven to move away from each other or press against each other.

[0033] When the two first pressing blocks 42 and the two second pressing blocks 53 press against each other simultaneously, the length of the protective film pulled out by the film pulling mechanism 7 meets the preset production requirements, and the protective film is in the cutting position. The transverse cylinder 61 drives the cutting blade 62 to move laterally to cut the protective film located between the one-way pressing mechanism 4 and the two-way pressing mechanism 5.

[0034] After the protective film of the roll is cut, the two first pressure blocks 42 continue to press down on the end of the roll protective film. At the same time, the two second pressure blocks 53 are driven away from each other. Then the film pulling mechanism 7 pulls the cut protective film back to the wrapping position.

[0035] More specifically, such as Figure 3 As shown, the diaphragm folding drive assembly 8 includes a first rotary cylinder 81, which drives the connected diaphragm folding plate 3 to flip the diaphragm folding plate 3 until it covers the support plate 2. At this time, part of the protective film on the diaphragm folding plate 3 (i.e., the front half of the protective film) is bonded together with part of the protective film on the support plate 2 (i.e., the rear half of the protective film), and the product to be coated is wrapped inside it, that is, the coating action of the product to be coated is completed at the coating position.

[0036] like Figure 2As shown, a sloping chute 91 is provided below the support plate 2 to connect to the feed inlet of the receiving box 9. The flipping assembly 12 includes a second rotary cylinder 121, which drives the support plate 2 to flip the support plate 2, thereby conveying the film-coated products on the support plate 2 to the receiving box 9 through the sloping chute 91.

[0037] In summary, this embodiment uses machine wrapping to replace manual wrapping to avoid contaminating the surface of the wrapped product, thereby ensuring the mirror finish of the injection-molded product. It also effectively improves packaging yield and saves labor costs.

[0038] Further preferred, such as Figure 2 and Figure 3 As shown, the two first pressure blocks 42 are respectively provided with clearance notches 421 for avoiding the gripper 71's gripping movement, so that the gripper 71 can clamp the protective film suspended in the clearance notch 421 when it is pulled out.

[0039] Further preferred, such as Figure 2 As shown, at least one side of the carrier plate 2 is provided with a first limiting member (i.e., folding limiting block 31) for limiting the flipping angle of the diaphragm folding plate 3, so as to ensure that the diaphragm folding plate 3 and the carrier plate 2 maintain a certain safe distance when flipping and closing, thereby preventing the diaphragm folding plate 3 from putting excessive pressure on the product to be wrapped on the carrier plate 2.

[0040] Further preferred, such as Figure 2 As shown, at least one side of the support plate 2 is provided with a second limiting member (i.e., a flipping limiting block 21) to limit its flipping angle, so as to ensure that the support plate 2 flips back to the initial position.

[0041] When the coating machine of this specific embodiment is working, the feeding mechanism 1 unwinds the roll of electrostatic film through the frequency conversion motor to the feed port of the one-way pressing mechanism 4. Then, through the cooperation of the first pressing cylinder 41, the two first pressing blocks 42 press and fix the film exit end of the roll of electrostatic film.

[0042] Next, the stepper motor 74 of the film pulling mechanism 7 drives the mounting frame 73 and the gripper 71 to move to the pull-out position. Then, the gripper 71 clamps the end of the roll electrostatic film. Then, the first pressing cylinder 41 lifts one of the first pressing blocks 42 to release the fixation restriction on the electrostatic film. Then, the film pulling mechanism 7 drives the end of the roll electrostatic film to move backward to the cutting position.

[0043] Then, the upper cylinder 52 and the second lower cylinder 51 of the bidirectional pressing mechanism 5 and the first lower cylinder 41 of the unidirectional pressing mechanism 4 work simultaneously to press the roll electrostatic film together, while ensuring that the length of the electrostatic film pulled out at the cutting position meets the preset production requirements. After that, the transverse cylinder 61 of the film cutting mechanism 6 drives the cutting blade 62 to cut and separate the electrostatic film along the width direction of the electrostatic film. After the cutting is completed, the cutting blade 62 returns to its starting position.

[0044] After the roll electrostatic film is cut into a cut electrostatic film sheet (i.e., a protective film sheet), the upper cylinder 52 and the second lower cylinder 51 simultaneously reset, releasing the cut electrostatic film sheet. The film pulling mechanism 7 continues to move it backward, completely separating the cut electrostatic film sheet from the bidirectional pressing mechanism 5 until the film wrapping position is reached. Then, the gripper 71 releases the cut electrostatic film sheet. At this time, the rear half of the cut electrostatic film sheet is placed on the carrier plate 2 and is vacuum-adsorbed, while the front half of the cut electrostatic film sheet is placed on the film folding plate 3 and is vacuum-adsorbed. Then, the end effector of the six-axis robot places the product to be wrapped onto the cut electrostatic film on the carrier plate 2. The film folding plate 3 vacuum-adsorbs the front half of the cut electrostatic film, and the first rotary cylinder 81 flips the film folding plate 3 and covers it onto the carrier plate 2. At this time, the folding limit block 31 can ensure a safe distance between them to prevent overpressure on the wrapped product. Due to the electrostatic properties of the electrostatic film itself, the product to be wrapped can be wrapped inside the front and rear halves of the electrostatic film, thus completing the wrapping operation of the product to be wrapped.

[0045] Finally, the second rotary cylinder 121 drives the carrier plate 2 to rotate downwards by 90° and blows out gas through the air passage holes on the carrier plate 2 to blow off the film-coated products wrapped in electrostatic film. Then, the products are transported to the receiving box 9 through the inclined chute 91 for stacking. After that, the second rotary cylinder 121 drives the carrier plate 2 to flip in the opposite direction and resets to the initial position under the restriction of the flipping limit block 21.

[0046] In addition, this specific embodiment also has the following advantages:

[0047] 1. This embodiment uses foldable packaging and utilizes the self-adhesive properties of the electrostatic film to seal and protect the product, which is convenient for manual disassembly and use in subsequent processes. Compared with conventional wrapping and heat sealing packaging, foldable packaging is faster and more efficient.

[0048] 2. The coating machine of this embodiment can perform coating and feeding within a limited space, thus effectively improving its space utilization.

[0049] 3. The wrapping machine in this embodiment adopts an open-type product placement, which is compatible with the subsequent folding and packaging of any product, and has strong versatility; it can also be used in conjunction with the six-axis robot of the injection molding machine, or it can be equipped with a person to perform non-integrated operations on other products, and its utilization efficiency is high.

[0050] Of course, in other embodiments, the film cutting mechanism 6 can also employ upper and lower cutting blades or use a servo motor drive assembly to drive the cutting blade 62 to move laterally, thus achieving the effect of cutting film sheets. Furthermore, the fold width during wrapping can be adjusted according to the specifications of different electrostatic films.

[0051] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A folding lidding machine characterised in that: It includes a feeding mechanism for supplying roll protective film, a support plate for carrying the product to be wrapped, a film folding plate for folding the protective film in half, a one-way pressing mechanism for pressing the protective film rolled out by the feeding mechanism in one direction, a two-way pressing mechanism for pressing the protective film in two directions, a film cutting mechanism for cutting the protective film, and a film pulling mechanism for pulling the protective film. The film cutting mechanism is disposed between the unidirectional pressing mechanism and the bidirectional pressing mechanism; The film-pulling mechanism includes movable grippers for gripping the protective film, and can switch between a pull-out position for gripping the protective film on the one-way pressing mechanism, a cut position for cutting the protective film, and a wrapping position for placing a portion of the cut protective film on the carrier plate. The folding plate is disposed between the bidirectional pressing mechanism and the carrier plate. When in the wrapping position, the folding plate folds the cut protective film in half to wrap the product to be wrapped on the carrier plate.

2. The folding lidding machine of claim 1, wherein: It also includes a diaphragm folding drive assembly, which includes a first rotary cylinder that drives the diaphragm folding plate to flip the diaphragm folding plate until it covers the support plate.

3. The folding lidding machine of claim 2, wherein: At least one side of the support plate is provided with a first limiting member for limiting the flipping angle of the diaphragm folding plate; the diaphragm folding plate is provided with a vacuum adsorption hole for adsorbing the protective film.

4. The machine according to any of claims 1-3, characterized in that: It also includes a receiving box and a flipping assembly for flipping the carrier plate; the flipping assembly includes a second rotary cylinder, which drives the carrier plate to flip the carrier plate, thereby conveying the film-coated products on the carrier plate to the receiving box; a sloping chute is provided below the carrier plate for connecting to the inlet of the receiving box.

5. The folding lidding machine of claim 4, wherein: The support plate is provided with air passages that can provide positive and negative pressure; at least one side of the support plate is provided with a second limiting member for limiting its flipping angle to ensure that it flips back to the initial position.

6. The machine according to any of claims 1-3, characterized in that: The film stretching mechanism also includes a track, a stepper motor and a mounting frame mounted on the track, and the gripper is mounted on the mounting frame. The stepper motor drives the mounting frame to move back and forth on the track and synchronously drives the gripper to move accordingly.

7. The machine according to any of claims 1-3, characterized in that: The unidirectional pressing mechanism includes a first pressing cylinder and two first pressing blocks; one of the first pressing blocks is mounted on the lifting end of the first pressing cylinder, and the other first pressing block is fixedly set; the first pressing cylinder drives one of the first pressing blocks away from or presses against the other first pressing block; and when the two first pressing blocks press against each other, the protective film rolled out by the feeding mechanism is sandwiched between the two first pressing blocks.

8. The folding type enveloping machine according to claim 7, characterized by: The two first pressure blocks are provided with clearance notches to avoid the gripping movement of the grippers.

9. The folding type enveloping machine according to claim 7, characterized by: The bidirectional pressing mechanism includes an upper lifting cylinder and a second lower pressing cylinder arranged opposite to each other, as well as two second pressing blocks; one of the second pressing blocks is mounted on the lifting end of the upper lifting cylinder, and the other second pressing block is mounted on the lifting end of the second lower pressing cylinder; the upper lifting cylinder and the second lower pressing cylinder cooperate to drive the two second pressing blocks away from each other or press them together; and when the two first pressing blocks and the two second pressing blocks press together with each other simultaneously, the film cutting mechanism cuts the protective film located between the unidirectional pressing mechanism and the bidirectional pressing mechanism.

10. The machine according to any of claims 1-3, characterized in that: The film cutting mechanism includes a transverse cylinder and a cutting blade mounted on the transverse end of the transverse cylinder; the transverse cylinder drives the cutting blade to move transversely to cut the protective film located between the unidirectional pressing mechanism and the bidirectional pressing mechanism.

Images