Thermal printing device suitable for blowing, filling and sealing equipment

By integrating the label directly into the plastic outer layer using a thermal printing device, the problems of label detachment and ink diffusion are solved, ensuring the durability and security of the labeled information. It also supports double-sided thermal printing, reducing management costs and error risks.

CN224145584UActive Publication Date: 2026-04-21SHANGHAI TOFFLON SCI & TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI TOFFLON SCI & TECH CO LTD
Filing Date
2025-06-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

When labeling product information on existing blow-fill-seal equipment, labels are prone to falling off and ink spreading, leading to increased management costs and the risk of information errors.

Method used

Using a thermal printing device, a pre-printed thermal printing mold is heat-pressed onto the surface of the bottle, allowing the characters to be directly integrated into the plastic outer layer, replacing traditional adhesive labels.

Benefits of technology

Ensures the adhesion and durability of labeled information, avoids information loss and ink diffusion, improves product safety and usability, and supports double-sided heat printing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of blowing, filling and sealing equipment, in particular to a hot stamping device suitable for blowing, filling and sealing equipment, which comprises a bottom plate, a guide rail, a movable base, a rack, a hot stamping mechanism, an adjusting screw rod and a feeding guide mechanism, according to the thermal printing device, the thermal printing mold pre-printed with the mark is subjected to hot pressing transfer printing to the surface of the bottle body, so that the character is directly fused into the plastic surface layer, and the traditional label pasting mode is replaced. According to the technology, it is ensured that product information (such as names, specifications and batch numbers) marked on the plastic ampoule bottle has excellent adhesiveness and durability, the problems of information missing, label damage, ink diffusion fuzziness and the like are effectively solved, and therefore the risks that management cost is increased due to information additional recording and information additional recording is wrong can be avoided. Meanwhile, a certain anti-counterfeiting effect can be achieved through hot stamping of some special marks, and the safety and practicability of the product are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of blow-fill-seal equipment technology, specifically to a hot stamping device suitable for plastic ampoules. Background Technology

[0002] Blow-fill-seal equipment is one of the core modules of the packaging production line. This device, through seamless collaboration with blow molding, filling, and sealing processes, meets the high standards for packaging labeling requirements of industries such as pharmaceuticals and food. Plastic bottles produced by blow-fill-seal equipment need to be labeled with information such as product name, specifications, and batch number. Most plastic ampoules choose to directly affix labels to the labeling area on the bottle body or at the end of the bottle when labeling product information.

[0003] However, such products are prone to label detachment or ink diffusion when exposed to high humidity during drying or storage after sterilization. If the label is missing, damaged, or the text is blurred, it is usually necessary to re-enter the product information, which not only increases the cost of product management but also carries the risk of incorrect information entry.

[0004] Based on this, the present invention designs a heat-printing device suitable for blow-fill-seal equipment to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat-printing device suitable for blow-fill-seal equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat-printing device suitable for blow-fill-seal equipment, comprising a frame and a heat-pressing mechanism, wherein the heat-pressing mechanism is installed within the frame;

[0007] The hot stamping mechanism includes a first cylinder, a mold slide rail, a stop block, a mold fixing plate, a hot stamping mold, a pad block, a sliding groove clamping plate, and a heating plate. The first cylinder is fixedly installed at one end of the frame. The mold slide rail is fixedly connected to the piston rod of the first cylinder. V-shaped guide grooves are provided on both sides of the mold slide rail, and a stop block is slidably connected to each V-shaped guide groove. A heating plate is fixedly connected to the end of the mold slide rail opposite to the first cylinder. V-shaped sliding grooves are provided on both sides of the heating plate. A mold fixing plate is provided at the end of the heating plate opposite to the mold slide rail. Sliding groove clamping plates are provided on both sides of the mold fixing plate, and the sliding groove clamping plates are slidably connected within the V-shaped sliding grooves. In the horizontal direction, the stop block and the projection portion of the sliding groove clamping plate coincide. A hot stamping mold is provided at the end of the mold fixing plate opposite to the heating plate. Pad blocks for stopping plastic bottles are spaced apart on the side of the hot stamping mold opposite to the mold fixing plate.

[0008] As a preferred embodiment of the present invention, the hot stamping mechanism further includes a second cylinder, which is disposed at the bottom end of the frame, and the pad is disposed on the piston rod of the second cylinder.

[0009] As a preferred embodiment of the present invention, the hot stamping mechanism further includes an upper pressure plate and a lower pressure plate. The upper pressure plate is mounted on the frame and located on one side of the mold fixing plate. The lower pressure plate is mounted on the frame and located below the upper pressure plate. The lower pressure plate is provided with a clearance hole, and the pad passes through the clearance hole.

[0010] As a preferred embodiment of the present invention, the hot printing device further includes a feeding guide mechanism, which is disposed on one side of the frame, and the upper pressure plate is located between the feeding guide mechanism and the mold fixing plate.

[0011] As a preferred technical solution of this utility model, the feeding guide mechanism includes a guide plate, a guide groove and a ball chain plate. The guide plate is symmetrically fixedly connected to the frame, and guide grooves are provided on both left and right symmetrical guide plates. A rotatable ball chain plate is provided below the guide plate.

[0012] As a preferred embodiment of this utility model, the hot stamping mechanism further includes a bottle-blocking device, which includes a sleeve, a bottle-pressing plate, a spring guide rod, and a compression spring. The sleeve is connected to the piston rod of the first cylinder, and the spring guide rod is slidably connected inside the sleeve. One end of the spring guide rod near the hot stamping mold is connected to the bottle-pressing plate. The compression spring is sleeved on the spring guide rod, and both ends of the compression spring abut against the sleeve and the bottle-pressing plate, respectively.

[0013] As a preferred embodiment of this utility model, a heat-insulating guide sleeve is provided between the first cylinder and the heating plate.

[0014] As a preferred embodiment of this utility model, the hot-printing device further includes a base plate, a guide rail, and a movable base. The guide rail is fixedly mounted on the base plate, and the movable base is movably mounted on the guide rail. The frame is mounted on the movable base. An adjusting screw is screwed onto the base plate. The adjusting screw extends along the length of the guide rail, and one end of the adjusting screw is connected to the movable base.

[0015] As a preferred technical solution of this utility model, there are two frames, which are spaced apart along the length of the guide rail; each frame is provided with a hot stamping mechanism; the first cylinder of one hot stamping mechanism is located at the top of the frame where it is located, and the first cylinder of the other hot stamping mechanism is located at the bottom of the frame where it is located.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model's heat-printing device transfers pre-printed markings onto the bottle surface using a heat-pressing mold, allowing the characters to directly integrate into the plastic outer layer, thus replacing the traditional method of pasting labels. This technology ensures excellent adhesion and durability of product information (such as name, specifications, and batch number) marked on plastic ampoules, effectively avoiding problems such as missing information, label damage, and ink diffusion. Therefore, it avoids the increased management costs and risks associated with supplementing information. Simultaneously, heat-printing special markings can provide a certain degree of anti-counterfeiting, significantly improving product safety and usability.

[0018] 2. In use, this utility model extends the device by lengthening the base plate into a second frame, and installing a front heat-pressing device and a back heat-pressing device on the top of the second frame. This allows the device to be used for heat-pressing the front and back of plastic bottles respectively, enabling double-sided heat-pressing of plastic bottles. An auxiliary pushing mechanism is provided after the two devices to facilitate the forward transport of the plastic bottles, thus meeting usage requirements and making it highly versatile. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall side view structure of this utility model;

[0021] Figure 2 This is a top view of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall side sectional structure of this utility model;

[0023] Figure 4 This is a partially enlarged side view of the overall structure of this utility model;

[0024] Figure 5 This is a partially enlarged side profile diagram of the present invention.

[0025] Figure 6 This is a schematic diagram of the embossed plastic bottle structure of this utility model;

[0026] Figure 7 This is a side view of the structure of Embodiment 2 of this utility model;

[0027] Figure 8This is a top view of an embodiment of the present invention.

[0028] In the diagram: 1. Base plate; 2. Guide rail; 3. Movable base; 4. Frame; 5. Hot stamping mechanism; 501. Upper pressure plate; 502. Lower pressure plate; 503. First cylinder; 504. Mold slide rail; 505. Stop block; 506. Bottle stop device; 5061. Bottle pressing plate; 5062. Spring guide rod; 5063. Compression spring; 507. Mold fixing plate; 508. Hot stamping mold; 509. Pad block; 510. Second cylinder; 511. Slide clamping plate; 512. Plastic bottle; 5121. Label part; 5122. Liquid storage part; 513. Heating plate; 6. Adjusting screw; 7. Feeding guide mechanism; 701. Guide plate; 702. Guide groove; 703. Ball chain plate; 8. Auxiliary pushing mechanism. Detailed Implementation

[0029] The following will refer to the appendix in the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Example 1

[0031] Please see Figure 1-6 The present invention provides the following technical solution: a heat printing device suitable for blow-fill-seal equipment, comprising a frame 4 and a heat printing mechanism 5, wherein the heat printing mechanism 5 is installed inside the frame 4;

[0032] The hot stamping mechanism 5 includes a first cylinder 503, a mold slide rail 504, a stop block 505, a mold fixing plate 507, a hot stamping mold 508, a pad block 509, a sliding groove clamping plate 511, and a heating plate 513. The first cylinder 503 is fixedly installed at one end of the frame 4. The mold slide rail 504 is fixedly connected to the piston rod of the first cylinder 503. V-shaped guide grooves are provided on both sides of the mold slide rail 504, and the stop block 505 is slidably connected to the V-shaped guide grooves. The heating plate 513 is fixedly connected to the end of the mold slide rail 504 away from the first cylinder 503. V-shaped grooves are provided on both sides of the heating plate 513. A mold fixing plate 507 is provided at one end of the mold slide rail 504 away from the heating plate 513. Slide clamps 511 are provided on both sides of the mold fixing plate 507. The slide clamps 511 are slidably connected in the V-shaped groove. In the horizontal direction, the block 505 and the projection of the slide clamp 5011 are coincident. A heat printing mold 508 is provided at one end of the mold fixing plate 507 away from the heating plate 513. A pad block 509 for stopping the plastic bottle 512 is provided at intervals on one side of the heat printing mold 508 away from the mold fixing plate 507.

[0033] The heat-printing device in this embodiment of the invention transfers pre-printed markings onto the bottle surface using a heat-pressing mold, allowing the characters to be directly integrated into the plastic outer layer, thus replacing the traditional method of pasting labels. This technology ensures excellent adhesion and durability of product information (such as name, specifications, and batch number) marked on plastic ampoules, effectively avoiding problems such as missing information, label damage, and ink diffusion. Therefore, it avoids the increased management costs and risks associated with supplementing information. Simultaneously, heat-printing special markings can provide a certain degree of anti-counterfeiting, significantly improving product safety and usability.

[0034] Furthermore, when it is necessary to replace the heat-printing mold 508, the stop block 505 is installed on the mold slide rail 504, and the stop block 505 is slid along the V-shaped guide groove of the mold slide rail 504 until the stop block 505 contacts the mold fixing plate 507. Then, the heat-printing mold 508 is removed together with the mold fixing plate 507, and a new heat-printing mold is installed on the mold fixing plate 507. Afterwards, the mold fixing plate 507 and the new heat-printing mold are installed on the heating plate 513, and then the mold fixing plate 507 is slid along the V-shaped slide groove on the heating plate 513 until the mold fixing plate 507 contacts the stop block 505. At this time, the mold fixing plate 507 is in the position it was in before it was removed, and there is no need to adjust or determine its position, thus shortening the adjustment time.

[0035] Furthermore, the adjusting screw 6, which is spirally connected to the base plate 1 and located in the middle of the movable base 3, can be driven to adjust the overall position of the bottle hot stamping mechanism 5, so as to align and position the hot stamping mold 508 with the bottle.

[0036] In some embodiments of this invention, the hot stamping mechanism 5 further includes a second cylinder 510, which is disposed at the bottom end of the frame 4, and a pad 509 is disposed on the piston rod of the second cylinder 510. Further, the hot stamping mechanism 5 also includes an upper pressure plate 501 and a lower pressure plate 502. The upper pressure plate 501 is disposed on the frame 4 and located on one side of the mold fixing plate 507; the lower pressure plate 502 is disposed on the frame 4 and located below the upper pressure plate 501; the lower pressure plate 502 has clearance holes, and the pad 509 passes through the clearance holes.

[0037] It should be noted that the plastic bottle 512 includes a label portion 5121 and a liquid storage portion 5122, with the thickness of the label portion 5121 being much smaller than the thickness of the liquid storage portion 5122. During hot stamping, the plastic bottle 512 is placed horizontally between the upper pressure plate 501 and the lower pressure plate 502, with the liquid storage portion 5122 located on the lower pressure plate 502 and the label portion 5121 located on the pad 509. The hot stamping area has clearance holes to facilitate the raising and lowering of the pad, allowing adjustment of the distance between the upper surface of the pad and the lower pressure plate 502 to accommodate plastic bottles of different thicknesses.

[0038] The hot printing device also includes a feeding guide mechanism 7, which is located on one side of the frame 4, and the upper pressure plate 501 is located between the feeding guide mechanism 7 and the mold fixing plate 507.

[0039] The feeding guide mechanism 7 includes a guide plate 701, a guide groove 702, and a ball chain plate 703. The guide plates 701 are symmetrically fixedly connected to the frame 4, and the two guide plates 701 that are symmetrical on the left and right are provided with guide grooves 702. A rotatable ball chain plate 703 is provided below the guide plate 701 to prevent the plastic bottle 512 from deflecting during the conveying process, and to restrict the plastic bottle between the upper pressure plate 501 and the lower pressure plate 502 to prevent the plastic bottle from bulging during the movement.

[0040] The aforementioned guide groove 702 is made according to the specific bottle shape, which facilitates the positioning of the plastic bottle to the left and right. The ball chain plate is composed of several small balls, which can greatly reduce the resistance of the plastic bottle when feeding.

[0041] Because the heating of the heat-printing mold 508 melts the surface of the plastic bottle 512, it has a certain degree of adhesion. Therefore, it is easy for the bottle to stick to the heat-printing mold 508 when it rises and move upward together. To solve this problem, the heat-printing mechanism 5 also includes a bottle-blocking device 506. The bottle-blocking device 506 includes a sleeve, a bottle-pressing plate 5061, a spring guide rod 5062, and a compression spring 5063. The sleeve is connected to the piston rod of the first cylinder 503. The spring guide rod 5062 is slidably connected inside the sleeve. The end of the spring guide rod 5062 near the heat-printing mold 508 is connected to the bottle-pressing plate 5061. The compression spring 5063 is sleeved on the spring guide rod 5062, and the two ends of the compression spring 5063 abut against the sleeve and the bottle-pressing plate 5061, respectively. With the bottle-blocking device provided on the side of the first cylinder 503, the sleeve rises as the first cylinder 503 retracts; under the action of the compression spring 5063, the bottle-pressing plate 5061 remains in its original position, pressing on the plastic bottle 512 to prevent the plastic bottle 512 from following the heat-printing mold 508 upward, thereby facilitating the demolding of the heat-printing mold 508.

[0042] A heat-insulating guide sleeve is provided between the first cylinder 503 and the heating plate 513. The guide shafts provided on both sides of the first cylinder 503 and the second cylinder 510 can prevent the heat printing mold 508 and the pad 509 from twisting. The heat-insulating guide sleeve provided between the first cylinder 503 and the heating plate 513 can prevent excessive heat from being conducted to the first cylinder 503 and prevent it from affecting the first cylinder 503.

[0043] The hot printing device also includes a base plate 1, a guide rail 2, and a movable base 3. The guide rail 2 is fixedly mounted on the base plate 1, and the movable base 3 is movably mounted on the guide rail 2. The frame 4 is mounted on the movable base 3. An adjusting screw 6 is screwed onto the base plate 1. The adjusting screw 6 extends along the length of the guide rail 2, and one end of the adjusting screw 6 is connected to the movable base 3.

[0044] The working principle and usage process of this utility model are as follows: In specific use, when the plastic bottle 512 is first hot-pressed, the plastic bottle 512 enters from the feeding guide mechanism 7, and is then guided by the guide plate 701 to position the plastic bottle 512 left and right. The plastic bottle 512 continues to move forward and enters the area between the upper pressure plate 501 and the lower pressure plate 502. When the labeling area of ​​the lower pressure plate 502 enters below the hot-pressing mold 508, the adjusting screw 6 is rotated to drive the hot-pressing mechanism 5 to move back and forth along the guide rail 2 to ensure that the hot-pressing mold 508 is aligned with the labeling area of ​​the plastic bottle 512. The position of the hot-pressing mold 508 is adjusted to be aligned left and right with the plastic bottle 512 below. The heating plate 513 located between the mold slide rail 504 and the mold fixing plate 507, through the temperature control system, sets the heating temperature range to keep the temperature of the heat printing mold 508 within the error range, ensuring the heat printing quality. During heat printing, the second cylinder 510 drives the pad block 509 to extend and support the labeling area of ​​the plastic bottle 512. Then, the first cylinder 503 extends from above, pressing the heat printing mold 508 onto the upper surface of the labeling area of ​​the plastic bottle 512. At the same time, the bottle-blocking device 506 on the side of the first cylinder 503 descends and presses down on the body of the plastic bottle 512. After a certain period of time, the first cylinder 503 retracts and raises the sleeve. Under the action of the compression spring 5063, the bottle-pressing plate 5061 remains in its original position, pressing down on the plastic bottle 512 to prevent the plastic bottle 512 from moving upward with the heat printing mold 508, thus facilitating the demolding of the heat printing mold 508, completing one heat printing operation. After heat printing, the plastic bottle 512 continues to be conveyed forward and the above actions are repeated, allowing for continuous heat printing operations.

[0045] Example 2

[0046] Please see Figure 7-8 The difference between this embodiment and Embodiment 1 is that this embodiment can perform double-sided heat printing on plastic bottles: Based on Embodiment 1, there are two frames 4, which are spaced apart along the length of the guide rail 2; each frame 4 is equipped with a heat printing mechanism 5; the first cylinder 503 of one heat printing mechanism 5 is located at the top of its frame 4, and the first cylinder 503 of the other heat printing mechanism 5 is located at the bottom of its frame 4. The two heat printing mechanisms 5 are used to heat print the front and back sides of the plastic bottle 512, respectively, and an auxiliary pushing mechanism 8 is fixedly installed after the reverse heat printing device 5 to facilitate the forward transport of the plastic bottle 512.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hot stamping device suitable for use in a blow-fill-seal apparatus, characterised in that: It includes a frame (4) and a hot stamping mechanism (5), the hot stamping mechanism (5) being installed inside the frame (4); The hot stamping mechanism (5) includes a first cylinder (503), a mold slide rail (504), a stop block (505), a mold fixing plate (507), a hot stamping mold (508), a pad block (509), a sliding groove clamping plate (511), and a heating plate (513). The first cylinder (503) is fixedly installed at one end of the frame (4). The mold slide rail (504) is fixedly connected to the piston rod of the first cylinder (503). V-shaped guide grooves are provided on both sides of the mold slide rail (504), and a stop block (505) is slidably connected to the V-shaped guide groove. A heating plate (513) is fixedly connected to the end of the mold slide rail (504) away from the first cylinder (503). 3) V-shaped grooves are provided on both sides of the heating plate (513). A mold fixing plate (507) is provided at one end of the heating plate (513) away from the mold slide rail (504). Slide clamps (511) are provided on both sides of the mold fixing plate (507). The slide clamps (511) are slidably connected in the V-shaped groove. In the horizontal direction, the block (505) and the slide clamp (511) are partially overlapped. A heat printing mold (508) is provided at one end of the mold fixing plate (507) away from the heating plate (513). A pad (509) for stopping the plastic bottle (512) is provided at intervals on one side of the heat printing mold (508) away from the mold fixing plate (507).

2. The hot-printing device according to claim 1, characterized in that: The hot stamping mechanism (5) further includes a second cylinder (510), which is located at the bottom of the frame (4), and the pad (509) is located on the piston rod of the second cylinder (510).

3. The thermal printing device of claim 2, wherein: The hot stamping mechanism (5) further includes an upper pressure plate (501) and a lower pressure plate (502). The upper pressure plate (501) is mounted on the frame (4) and located on one side of the mold fixing plate (507). The lower pressure plate (502) is mounted on the frame (4) and located below the upper pressure plate (501). The lower pressure plate (502) is provided with a clearance hole, and the pad (509) passes through the clearance hole.

4. The thermal printing device of claim 3, wherein: The hot-printing device also includes a feeding guide mechanism (7), which is located on one side of the frame (4), and the upper pressure plate (501) is located between the feeding guide mechanism (7) and the mold fixing plate (507).

5. The thermal printing device of claim 4, wherein: The feeding guide mechanism (7) includes a guide plate (701), a guide groove (702) and a ball chain plate (703). The guide plate (701) is symmetrically fixedly connected to the frame (4), and the two guide plates (701) that are symmetrically arranged on the left and right are provided with guide grooves (702). A rotatable ball chain plate (703) is provided below the guide plate (701).

6. The thermal printing device of claim 1, wherein: The hot stamping mechanism (5) further includes a bottle-blocking device (506), which includes a sleeve, a bottle-pressing plate (5061), a spring guide rod (5062), and a compression spring (5063). The sleeve is connected to the piston rod of the first cylinder (503), and the spring guide rod (5062) is slidably connected inside the sleeve. One end of the spring guide rod (5062) near the hot stamping mold (508) is connected to the bottle-pressing plate (5061). The compression spring (5063) is sleeved on the spring guide rod (5062), and both ends of the compression spring (5063) abut against the sleeve and the bottle-pressing plate (5061), respectively.

7. The thermal printing device of claim 1, wherein: A heat-insulating guide sleeve is provided between the first cylinder (503) and the heating plate (513).

8. The thermal printing device of claim 1, wherein: The hot-printing device also includes a base plate (1), a guide rail (2), and a movable base (3). The guide rail (2) is fixedly mounted on the base plate (1), and the movable base (3) is movably mounted on the guide rail (2). The frame (4) is mounted on the movable base (3). An adjusting screw (6) is screwed onto the base plate (1). The adjusting screw (6) extends along the length of the guide rail (2), and one end of the adjusting screw (6) is connected to the movable base (3).

9. The thermal printing device of claim 1, wherein: There are two frames (4), and the two frames (4) are spaced apart along the length of the guide rail (2); each frame (4) is provided with a hot stamping mechanism (5); the first cylinder (503) of one hot stamping mechanism (5) is located at the top of the frame (4) where it is located, and the first cylinder (503) of the other hot stamping mechanism (5) is located at the bottom of the frame (4) where it is located.