A label printer with a plastic casing

Abstract

This utility model relates to the field of plastic shell technology, specifically a labeling machine for plastic shells, including an operating table. This labeling machine for plastic shells achieves stable shell transport through a double-belt conveyor and side baffles. The labeling and pressing stations utilize limiting components such as push cylinders and baffles for precise positioning. A bidirectional moving mechanism of the labeling component drives the adsorption device to pick up the label, effectively solving the problem of manual labeling deviation. Multiple independent label release zones in the label storage component, along with a lifting mechanism and multi-belt conveyors, ensure orderly supply. Vacuum adsorption label picking avoids label contamination caused by manual contact. After labeling, a screw-adjustable pressing component applies pressure evenly again, eliminating wrinkles and bubbles, improving adhesion and appearance uniformity. Furthermore, the equipment achieves full-process automation, reducing reliance on operator skill and improving efficiency, making it more suitable for the large-scale production needs of plastic shells for communication equipment.

Description

Technical Field

[0001] This utility model relates to the field of plastic shell technology, specifically to a labeling machine with a plastic shell. Background Technology

[0002] In the telecommunications equipment manufacturing industry, plastic casings, as important protective components of equipment, need to be labeled with information such as model number, parameters, production date, and anti-counterfeiting code to meet the needs of product traceability, compliance inspection, and user identification.

[0003] Traditional labeling of plastic casings for communication equipment is entirely manual. Operators must attach the label to the side with adhesive, relying on visual judgment and manual dexterity to align the label with the pre-designed labeling area on the casing. The quality and efficiency of this process are highly dependent on the operator's individual skills. Inexperienced employees are prone to errors in judging the labeling position, and may also contaminate the label when removing it, covering the information. This can also lead to problems such as labels shifting left or right or misaligning up or down. Furthermore, a lack of responsibility or fatigue after long hours of work can prevent the label from being properly smoothed during application, resulting in wrinkles, curled edges, or air bubbles forming during the application process, severely affecting the neatness of the product's appearance and the clarity of the markings. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a labeling machine for plastic shells, comprising an operating table, on which a double-belt conveyor for conveying plastic shells is integrated, a label storage component located on one side of the double-belt conveyor, a labeling component cooperating with the label storage component, and baffles symmetrically distributed on both sides of the double-belt conveyor; the label storage component includes a frame plate, the inner side of which is divided into several independent label dispensing sections by multiple longitudinal partitions, two sets of limiting plates spanning each label dispensing section are fixed to the top of the frame plate, a multi-belt conveyor is installed on the operating table corresponding to the bottom of each label dispensing section, and a lifting mechanism located on one side of the frame plate is also installed on the operating table, the top of which is fixed with a top plate that can extend into each label dispensing section; the labeling component includes a bidirectional moving mechanism, the vertical moving end of which is fixedly equipped with an adsorption device for adsorbing labels.

[0005] Furthermore, the lifting mechanism includes a support frame fixed to the bottom of the operating table. A second lead screw device is installed on the support frame in the vertical direction. A lifting plate that slides with the support frame is fixed to the nut end of the second lead screw device. A plurality of spaced support plates are fixed to the side of the lifting plate facing the support frame. The top ends of the support plates are fixedly connected to the bottom of the top plate.

[0006] Furthermore, the bidirectional moving mechanism includes a labeling rack fixed on the operating table and located above the label storage assembly. A forward-pushing cylinder is installed on the labeling rack in the horizontal direction. A downward-pushing cylinder is fixed to the top of the piston rod of the forward-pushing cylinder in the vertical direction. The top of the piston rod of the downward-pushing cylinder is fixedly connected to the adsorption device.

[0007] Furthermore, a pressing assembly located downstream of the labeling assembly is also installed on the operating table. The pressing assembly includes a first lead screw device installed on the operating table. The nut end of the first lead screw device is fixed with a movable seat that is slidably connected to the operating table. A pressing device arranged vertically is installed on the top of the movable seat. A pressing block located directly above the double belt conveyor is fixed at the output end of the pressing device.

[0008] Furthermore, limit components are installed on the stop bar at positions corresponding to the labeling component and the pressing component, respectively. The limit component includes a side plate fixed to the stop bar. A limit cylinder is hinged to one side of the side plate, and a baffle for blocking the plastic shell is hinged to the other side. The piston rod of the limit cylinder is hinged to one end of the baffle.

[0009] Furthermore, a set of opposing cylinders is installed on the operating table directly below the labeling component and the pressing component. Each set of opposing cylinders includes four opposing cylinders distributed in pairs on both sides of the baffle. The two sets of eight opposing cylinders are respectively set for the labeling component and the pressing component. A pushing plate is fixed between the piston rods of two opposing cylinders on the same side. Two spaced protrusions are fixed on the side of the pushing plate facing the double belt conveyor.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0011] This labeling machine for plastic casings uses a dual-belt conveyor system and side baffles to ensure stable transport of the casings. The labeling and pressing stations feature precise positioning via push cylinders and baffles, while a bidirectional moving mechanism of the labeling component drives the adsorption device to pick up the label, effectively solving the problem of manual labeling deviation. Multiple independent label release zones in the label storage component, along with a lifting mechanism and multiple belt conveyors, ensure orderly supply. Vacuum adsorption label picking avoids label contamination caused by manual contact. After labeling, a screw-adjustable pressing component applies pressure evenly to the label, eliminating wrinkles and bubbles, improving adhesion and appearance uniformity. Furthermore, the equipment achieves full automation, reducing reliance on operator skill and increasing efficiency, making it more suitable for the large-scale production needs of plastic casings for communication equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2This is a three-dimensional structural schematic diagram of the standard storage component in this utility model;

[0014] Figure 3 This utility model Figure 2 A three-dimensional schematic diagram of the connection structure of the middle support frame;

[0015] Figure 4 This is a three-dimensional structural diagram of the labeling component in this utility model;

[0016] Figure 5 This is a three-dimensional structural diagram of the clamping component in this utility model;

[0017] Figure 6 This is a three-dimensional schematic diagram of the push plate connection structure in the limiting component of this utility model;

[0018] Figure 7 This is a three-dimensional schematic diagram of the side plate connection structure in the limiting component of this utility model.

[0019] In the diagram: 1. Operating platform; 2. Double belt conveyor; 3. Labeling assembly; 31. Labeling rack; 32. Front push cylinder; 33. Lower push cylinder; 34. Adsorption device; 4. Pressing assembly; 41. First screw device; 42. Moving seat; 43. Lower pressing device; 44. Pressing block; 5. Label storage assembly; 51. Frame plate; 52. Multi-belt conveyor; 53. Limiting plate; 54. Support frame; 55. Second screw device; 56. Lifting plate; 57. Support plate; 58. Top plate; 6. Limiting assembly; 61. Opposing push cylinder; 62. Opposing push plate; 63. Protrusion; 64. Side plate; 65. Limiting cylinder; 66. Baffle; 7. Stop bar. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-7This embodiment of a labeling machine for plastic shells includes an operating table 1 and a double-belt conveyor 2, a labeling assembly 3, a pressing assembly 4, a label storage assembly 5, a limiting assembly 6, and stop bars 7 integrated on the operating table 1. These components work together to complete the conveying, positioning, labeling, labeling, and pressing operations of the plastic shells. The double-belt conveyor is installed at the top center of the operating table 1 and consists of a drive motor, a drive roller, a driven roller, and two parallel conveyor belts. The conveyor belts have anti-slip textures on their surface. Their function is to carry the plastic shells to be labeled and convey them horizontally to the labeling station, the pressing station, and finally to the discharge end. The symmetrical double-belt design prevents the shells from shifting or tilting during conveying. Two stop bars 7 are symmetrically welded to the operating table 1 and are arranged along the conveying direction of the double-belt conveyor 2. Their spacing is slightly larger than the width of the plastic shell, guiding the shells to move along the conveying direction and preventing shifting during conveying.

[0022] like Figure 2-3 The label storage component 5 is located on the back of the dual-belt conveyor 2 and is used to store labels and achieve orderly label supply. The label storage component 5 includes a frame plate 51 fixed on the operating table 1. The frame plate 51 is a rectangular frame structure, and its inner side is divided into several independent label placement areas by no less than 5 longitudinal partitions. It can store multiple sets of labels at the same time to meet the needs of labeling multiple shells at the same time. Two sets of limiting plates 53 are fixed at the top of the frame plate 51, which span each label placement area to limit the top position of the label and prevent the label from being pushed out during storage or transportation. A multi-belt conveyor 52 is installed at the bottom of the operating table 1 corresponding to each label placement area, and a lifting mechanism is installed at the bottom. The lifting end of the lifting mechanism is fixed with a top plate 58 that passes through the operating table 1 and extends into the frame plate and is located in the label placement area. The labels can be conveyed forward by the multi-belt conveyor and the labels in the label placement area can be conveyed to the lifting mechanism. The top plate driven by the lifting mechanism is used to lift the label with its first end located in the label placement area to a suitable height.

[0023] The lifting mechanism includes a support frame 54 fixed to the bottom of the operating table 1. A second lead screw device 55 is installed vertically on the left side of the support frame 54. A lifting plate 56 that slides with the support frame 54 is fixed to the nut end of the second lead screw device 55. A support plate 57 with the same number of labeling intervals is fixed to the right side of the lifting plate 56. The top of each support plate 57 is fixed to the bottom of the top plate 58. The second lead screw device 55 drives the motor to rotate the lead screw, thereby driving the lifting plate 56 to slide up and down along the slide rail of the support frame 54. The top plate 58 can extend into each labeling interval. When the multi-belt conveyor 52 delivers the label to the top plate 58, the lifting mechanism drives the top plate 58 to rise, lifting the uppermost label to the height that the labeling component 3 can adsorb.

[0024] like Figure 4The labeling component 3 is located above the label storage component 5 and is used to pick up and apply labels. The labeling component 3 includes a labeling rack 31 fixed on the operating table 1. The labeling rack 31 spans the label storage component 5 and a front-push cylinder 32 is fixedly installed on its top. The piston rod of the front-push cylinder 32 is fixed to a lower-push cylinder 33, and the piston rod of the lower-push cylinder 33 is equipped with an adsorption device 34. The operation of the front-push cylinder can drive the adsorption device to move between the label storage component and the double-belt conveyor device, and the lower-push cylinder can drive the adsorption device to approach and adsorb the label, or transfer the label to the outer shell to complete the affixing.

[0025] The adsorption device 34 is a vacuum adsorption plate connected to a vacuum pump via an air pipe. Its adsorption surface is adapted to the label size. It can adsorb the label through negative pressure, avoiding label contamination caused by human contact. The adsorption force is adjustable to prevent damage to the label.

[0026] like Figure 5 The pressing component 4 is located above the double belt conveyor 2 downstream of the labeling component 3. It is used to press the pasted label a second time to eliminate wrinkles and air bubbles. The pressing component 4 includes a first lead screw device 41 installed on the operating table 1. The nut end of the first lead screw device 41 is fixed with a movable seat 42 that slides with the operating table 1. The drive motor drives the lead screw to rotate and drives the movable seat 42 to move horizontally along the slide rail of the operating table 1. The pressing position can be adjusted sequentially according to the number of plastic shells. A pressing device 43 is fixed on the top of the movable seat 42. The pressing device 43 is a cylinder or electric push rod, which is vertically installed on the top of the movable seat 42. A pressure block 44 is fixed on the output end of the pressing device 43. The bottom of the pressure block 44 is made of silicone, which can avoid damage to the plastic shell and label during pressing, and at the same time ensure that the label is tightly attached.

[0027] like Figure 7 The limiting component 6 includes two sets of side plates 64 fixed to the stop bar 7. The side plates are respectively distributed below the labeling component 3 and the pressing component 4. The back of the side plate 64 is hinged to a limiting cylinder 65, and the front is hinged to a baffle 66. The baffle 66 is hinged at the center. The piston rod of the limiting cylinder 65 is hinged to the left end of the baffle 66. When the plastic shell is conveyed to the work station, the limiting cylinder 65 drives the baffle 66 to push out above the double belt conveyor, preventing the shell from moving further, so that the shell is in the designated position to complete the labeling and pressing.

[0028] like Figure 6Two sets of opposing push cylinders 61 are fixed on the operating table 1. Each set of opposing push cylinders 61 contains four cylinders that are opposite each other and are respectively installed on both sides of the stop bar 7 of the corresponding work position on the operating table 1. A push plate 62 is fixedly connected between the piston rods of the two opposing push cylinders 61 on the same side. Two spaced protrusions 63 are fixed on the opposite side of the push plate 62. The protrusions 63 are made of rubber. When the outer shell is blocked by the baffle 66, the opposing push cylinder 61 drives the two opposing push plates 62 to move towards each other. The protrusions 63 clamp the outer shell to achieve left and right positioning and ensure accurate labeling and pressing positions.

[0029] The working principle described above is as follows:

[0030] After the equipment is started, the appropriate number of plastic shells to be labeled are placed on the conveyor belt of the double-belt conveyor. The double belts, driven by the drive motor, operate synchronously to ensure smooth transport of the shells. Two baffles guide the shells along the conveying direction to prevent them from shifting during transport, sending the shells sequentially to the labeling station and the pressing station. At the same time, the label storage component completes the storage and supply of labels. Multiple independent label placement areas within the frame plate store multiple sets of labels. The top limit plate prevents labels from being pushed out, and the bottom multi-belt conveyor transports the labels to the lifting mechanism. When the labels reach above the top plate, the second screw device drives the lifting plate to raise the top plate, lifting the top layer of labels to the height that the labeling component can hold. When the shells are transported to the labeling station, the limit component starts to work. The limit cylinders on the side plates push the baffles to rotate onto the conveyor belt, blocking the shells. The device moves to a designated position, and then the opposing cylinders on both sides drive the opposing plates to move towards each other. The protrusions clamp the outer shell to complete the positioning. At this time, the front cylinder of the labeling component pushes the lower cylinder and the adsorption device to the top of the label storage component. The lower cylinder drives the vacuum adsorption plate to descend, adsorb the label, and then reset. The front cylinder moves again to move the label to the top of the outer shell. The lower cylinder descends to make the label adhere to the preset position of the outer shell. The adsorption device releases the label and then resets. The labeled outer shell continues to be transported to the pressing station, and the above limiting and positioning actions are repeated. The first screw device of the pressing component drives the moving seat to adjust its position so that the pressing block is aligned with the label. The pressing device pushes the pressing block with silicone at the bottom to descend, applying pressure to the label to eliminate wrinkles and air bubbles. Then the pressing block resets and its position is adjusted by the first screw device. The pressing operation of the label on the outer shell is completed in sequence.

[0031] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0032] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] 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 labelling machine for plastic containers, characterised in that: The system includes an operating platform (1), on which a double-belt conveyor (2) for conveying plastic shells is integrated and installed, a label storage component (5) located on one side of the double-belt conveyor (2), a labeling component (3) that cooperates with the label storage component (5), and baffles (7) symmetrically distributed on both sides of the double-belt conveyor (2); the label storage component (5) includes a frame plate (51), the inner side of the frame plate (51) is divided into several independent label placement areas by multiple longitudinal partitions, the top of the frame plate (51) is fixed with two sets of limiting plates (53) that span each label placement area, the bottom of the operating platform (1) is equipped with a multi-belt conveyor (52) corresponding to each label placement area, and the operating platform (1) is also equipped with a lifting mechanism located on one side of the frame plate (51), the top of the lifting mechanism is fixed with a top plate (58) that can extend into each label placement area. The labeling component (3) includes a bidirectional moving mechanism, and an adsorption device (34) for adsorbing labels is fixedly installed at the vertical moving end of the bidirectional moving mechanism.

2. A labeler for plastic containers as defined in claim 1, wherein: The lifting mechanism includes a support frame (54) fixed to the bottom of the operating table (1). A second lead screw device (55) is installed on the support frame (54) in the vertical direction. The nut end of the second lead screw device (55) is fixed with a lifting plate (56) that slides with the support frame (54). A plurality of spaced support plates (57) are fixed on the side of the lifting plate (56) facing the support frame (54). The tops of the support plates (57) are fixedly connected to the bottom of the top plate (58).

3. A labeler for plastic containers as defined in claim 1, wherein: The bidirectional moving mechanism includes a labeling frame (31) fixed on the operating table (1) and located above the label storage assembly (5). A forward-pushing cylinder (32) is installed on the labeling frame (31) in the horizontal direction. A downward-pushing cylinder (33) is fixed at the top of the piston rod of the forward-pushing cylinder (32) in the vertical direction. The top of the piston rod of the downward-pushing cylinder (33) is fixedly connected to the adsorption device (34).

4. A labeler for plastic containers as defined in claim 1, wherein: The operating table (1) is also equipped with a pressing assembly (4) located downstream of the labeling assembly (3). The pressing assembly (4) includes a first lead screw device (41) installed on the operating table (1). The nut end of the first lead screw device (41) is fixed with a movable seat (42) that is slidably connected to the operating table (1). The top of the movable seat (42) is equipped with a pressing device (43) arranged in a vertical direction. The output end of the pressing device (43) is fixed with a pressure block (44) located directly above the double belt conveyor (2).

5. A labeler for plastic containers as defined in claim 4, wherein: Limiting components (6) are installed on the stop bar (7) at positions corresponding to the labeling component (3) and the pressing component (4). The limiting component (6) includes a side plate (64) fixed on the stop bar (7). A limiting cylinder (65) is hinged to one side of the side plate (64), and a baffle (66) for blocking the plastic shell is hinged to the other side. The piston rod of the limiting cylinder (65) is hinged to one end of the baffle (66).

6. A labeler for plastic containers as defined in claim 5, wherein: On the operating table (1), a set of opposing cylinders (61) are installed directly below the labeling component (3) and the pressing component (4). Each set of opposing cylinders (61) includes four opposing cylinders (61) arranged in pairs opposite each other on both sides of the baffle (7). The two sets of eight opposing cylinders (61) are respectively set for the labeling component (3) and the pressing component (4). A pushing plate (62) is fixed between the piston rods of two opposing cylinders (61) located on the same side. Two spaced protrusions (63) are fixed on the side of the pushing plate (62) facing the double belt conveyor (2).

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