Sealing device for tea packaging

Abstract

The utility model relates to a sealing device for tea packaging, which comprises a support and further comprises a connecting seat detachably mounted on the support. The first driving source is mounted at the top of the connecting seat in a swinging manner and is used for providing power; the connecting rod assembly is rotatably arranged at one end of the connecting base, and the first driving source can drive the connecting rod assembly to swing back and forth in a reciprocating mode; and the two heat sealing arm assemblies are in mirror image with each other, are arranged at the bottom of the connecting seat in a sliding manner, and are in hinge connection with the two output ends of the connecting rod assembly. The device is compact and simple in structure, stable in transmission, cost-saving, high in working efficiency, convenient to maintain, good in product quality and high in rate of finished products.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a sealing device for tea packaging. Background Art

[0002] The end-sealing mechanism is an important component responsible for hot-pressing and sealing in a packaging machine. The existing transmission structure of the end-sealing mechanism is relatively complex. Most of them require the cooperation of multiple cylinders or the cooperation of a motor and a speed reducer to realize the opening and closing of the end-sealing seat. The overall structure is not compact enough, the transmission is unstable, the implementation cost is high, it is also easy to be damaged, and the later maintenance is relatively troublesome. Summary of the Invention

[0003] The purpose of the utility model is to provide a sealing device for tea packaging with a compact and simple structure, stable transmission, cost saving, high working efficiency, convenient maintenance, good product quality and high yield rate, so as to solve the problems of the existing overall structure not being compact enough, unstable transmission, high implementation cost, easy damage, and relatively troublesome later maintenance.

[0004] To achieve the above technical solution, the technical solution of the utility model is as follows: A sealing device for tea packaging, including a bracket, and the sealing device further includes:

[0005] A connecting seat, detachably installed on the bracket;

[0006] A first driving source, swingably installed on the top of the connecting seat for providing power;

[0007] A connecting rod assembly, rotatably arranged at one end of the connecting seat, and the first driving source can drive the connecting rod assembly to swing back and forth; and

[0008] A heat-sealing arm assembly, two of the heat-sealing arm assemblies are mirror images of each other and slidably arranged at the bottom of the connecting seat, and both of the heat-sealing arm assemblies are hinged to the two output ends of the connecting rod assembly;

[0009] Wherein: during heat-sealing, the first driving source acts to drive the connecting rod assembly to swing, and then drives the adjacent heat-sealing arm assemblies to approach each other to complete heat-sealing.

[0010] Further, the connecting seat is adjustably inserted into the bracket through a bushing; adjusting arms are symmetrically arranged on both sides of the connecting seat; and elongated through holes are symmetrically opened on the adjusting arms.

[0011] Further, the first driving source is a cylinder; the cylinder is swingably arranged on the top of the connecting seat through a cylinder mounting seat; first sensors are arranged corresponding to the telescopic positions of the cylinder.

[0012] Further, the connecting rod assembly includes a swing shaft; swing blocks are fixedly arranged at both ends of the swing shaft; first pull rods and second pull rods are respectively hinged to both ends of each swing block; one ends of the first pull rods and the second pull rods are respectively hinged to their corresponding heat-sealing arm assemblies.

[0013] Further, the length of the first pull rod is much greater than that of the second pull rod; a pivot seat is arranged at the central position of the swing shaft.

[0014] Further, the heat-sealing arm assembly includes a moving arm plate slidably arranged on a connecting seat through a linear guide; an insulating block is fixedly arranged on one side of the moving arm plate; a heating assembly is arranged at one end of the insulating block.

[0015] Further, the sealing device further includes a clamping member, and the clamping member is adjustably arranged below the heat-sealing arm assembly.

[0016] Further, the clamping member includes a clamping base; a clamping cylinder is swingably arranged below the clamping base; a driving swing arm is swingably arranged on the clamping base; the clamping cylinder can drive the driving swing arm to swing reciprocally; clamping arms are arranged on the top of the clamping base to be able to approach or move away from each other; the driving swing arm is hinged to the clamping arms.

[0017] Further, a deformable pressure strip is inserted on the clamping arms.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1) The structure of the utility model is simple. Through the extension and retraction of the piston rod of the cylinder, the piston rod drives the connecting rod assembly to perform a swinging motion. At this time, the connecting rod assembly acts on the corresponding heat-sealing arm assemblies through the first pull rod and the second pull rod to approach or move away from each other, thereby realizing rapid heat-sealing forming. The utility model adopts a cylinder drive. When the cylinder is started once, the adjacent heat-sealing arm assemblies are sealed once. The structure is simple and easy to control, making the structure of the machine more compact, facilitating the flexible layout of the equipment in the packaging machine, and having a low later maintenance cost.

[0020] 2) The utility model drives the adjacent two heat-sealing arm assemblies to approach each other synchronously by starting the cylinder, effectively ensuring the consistency of the motion, and having a compact and simple structure, stable transmission, cost saving, high working efficiency, convenient maintenance, good product quality and high finished product rate.

[0021] 3) The utility model is provided with a clamping member below the connecting seat to squeeze and clamp the bag mouth, avoiding the influence on the packaging effect caused by the restoration of the packaging bag to its original state after the negative pressure is closed, and further improving the packaging quality.

[0022] 4) The utility model makes the whole device applicable to vacuum packaging, inner packaging box shaping guarantee and normal state packaging by adding a clamping component, which has high practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To further illustrate each embodiment, the utility model provides drawings. These drawings are part of the disclosure of the utility model, mainly used to illustrate the embodiments and can be used to explain the operation principle of the embodiments in combination with the relevant descriptions in the specification. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] Figure 1 It is a three-dimensional structure diagram of the sealing device;

[0025] Figure 2 It is an exploded view of the sealing device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0027] To enable those skilled in the art of this technology to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0028] Embodiment 1:

[0029] Please refer to the attached Figures 1 to 2As shown: A sealing device for tea packaging, comprising a bracket 1, a connecting seat 2, a first driving source 3, a connecting rod assembly 4 and a heat-sealing arm assembly 5. The bracket 1 is composed of a metal workpiece rotatably connected with four guide shafts, and is used to provide support for the installation of the connecting seat 2, the first driving source 3, the connecting rod assembly 4 and the heat-sealing arm assembly 5; the connecting seat 2 is detachably installed on the bracket 1 and is used to provide support for the installation of the first driving source 3, the connecting rod assembly 4 and the heat-sealing arm assembly 5; the first driving source 3 is swingably installed on the top of the connecting seat 2 and is used to provide the driving power for driving the heat-sealing arm assemblies 5 to approach each other to complete heat-sealing; the connecting rod assembly 4 is rotatably arranged at one end of the connecting seat 2, and the first driving source 3 can drive the connecting rod assembly 4 to swing back and forth; the two heat-sealing arm assemblies 5 are mirror images of each other and are slidably arranged at the bottom of the connecting seat 2, and both of the two heat-sealing arm assemblies 5 are hinged to the two output ends of the connecting rod assembly 4; specifically, during heat-sealing, the first driving source 3 acts to drive the connecting rod assembly 4 to swing, thereby driving the adjacent heat-sealing arm assemblies 5 to approach each other to complete heat-sealing. The structure of the present utility model is compact and simple, with stable transmission, cost savings, high working efficiency, convenient maintenance, good product quality and high yield rate.

[0030] Based on the above embodiment, the connecting seat 2 is adjustably inserted into the bracket 1 through a bushing, so that it can be suitable for packaging applications in different occasions, with strong practicability; the connecting seat 2 is symmetrically provided with adjusting arms at both sides for adjusting the overall height position; long strip-shaped through holes are symmetrically opened on the adjusting arms. During use, the fastener passes through the long strip-shaped through hole and is locked into the side of the bracket 1. If it is necessary to package different types, there is no need to modify the entire structure. As long as the locking member is loosened and the position of the connecting seat 2 is adjusted to suit the current packaging.

[0031] Based on the above embodiment, the first driving source 3 is a cylinder; the cylinder is swingably arranged on the top of the connecting seat 2 through a cylinder mounting seat; first sensors (not shown in the figure) are provided corresponding to the telescopic positions of the cylinder to sense the telescopic state of the cylinder. Of course, in other embodiments, the first driving source 3 can also be an electric type or a cylinder type or other machine structures with reciprocating linear movement, which is not specifically limited herein.

[0032] Based on the above embodiments, the connecting rod assembly 4 includes a swing shaft 41 rotatably mounted on the connecting seat 2 through a bearing; swing blocks 42 for changing the power transmission direction are fixedly provided at both ends of the swing shaft 41 through fasteners; a first pull rod 43 and a second pull rod 44 are respectively hinged at both ends of the swing block 42; one ends of the first pull rod 43 and the second pull rod 44 are respectively hinged to their respective heat-sealing arm assemblies 5. During operation, as long as the swing shaft 41 is driven to swing, the adjacent heat-sealing arm assemblies 5 will be pulled closer or farther away through the first pull rod 43 and the second pull rod 44, which has a simple and compact structural design and is convenient for subsequent maintenance.

[0033] Based on the above embodiments, the length of the first pull rod 43 is much greater than that of the second pull rod 44; a pivot seat is provided at the middle position of the swing shaft 41 for forming a transmission connection with the first driving source 3.

[0034] In this example, when the piston rod of the air cylinder extends and retracts, the piston rod drives the connecting rod assembly to perform a swinging motion. At this time, the connecting rod assembly acts on its respective corresponding heat-sealing arm assemblies through the first pull rod and the second pull rod to move closer or farther away from each other, thereby realizing rapid heat-sealing forming. The utility model adopts air cylinder drive. When the air cylinder is started once, the adjacent heat-sealing arm assemblies are sealed once. The structure is simple and easy to control, making the structure of the machine more compact, facilitating the flexible layout of the equipment in the packaging machine, and having a low later maintenance cost; in addition, when the air cylinder is started, it synchronously drives the adjacent two heat-sealing arm assemblies to move closer to each other, effectively ensuring the consistency of motion, and having a compact and simple structure, stable transmission, cost saving, high working efficiency, convenient maintenance, good product quality and high finished product rate.

[0035] Based on the above embodiments, the heat-sealing arm assembly 5 includes a moving arm plate 51 slidably arranged on the connecting seat 2 through a linear guide; an insulating block 52 is fixedly provided on one side of the moving arm plate 51; a heating assembly 53 is provided at one end of the insulating block 52.

[0036] Embodiment 2:

[0037] Based on the above embodiments, please refer to the attached Figures 1 to 2 As shown: The sealing device further includes a clamping member 6, and the clamping member 6 is adjustably arranged below the heat-sealing arm assembly 5.

[0038] Based on the above embodiments, the clamping member 6 includes a clamping base 61; a clamping air cylinder 62 is swingably provided below the clamping base 61; a driving swing arm 63 is swingably provided on the clamping base 61; the clamping air cylinder 62 can drive the driving swing arm 63 to swing reciprocally; clamping arms 64 that can move closer or farther away from each other are provided at the top of the clamping base 61; the driving swing arm 63 is hinged to the clamping arms 64.

[0039] The utility model is provided with a clamping component below the connecting seat to squeeze and clamp the bag mouth, avoiding the restoration of the packaging bag to its original state after the negative pressure is closed, which affects the packaging effect and further improves the packaging quality. In addition, by adding the clamping component, the whole device can be applied to vacuum packaging, inner packaging box shaping guarantee, and normal state packaging, with high practicability.

[0040] Based on the above embodiment, a deformable pressure strip is inserted on the clamping arm 64.

[0041] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments with equivalent changes by using the disclosed technical content with some modifications within the scope of the technical solution of the present invention. However, as long as it does not depart from the technical solution content of the present invention, any brief modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A sealing device for tea packaging, comprising a bracket (1), characterized in that: The sealing device also includes: A connecting seat (2) which is detachably mounted on the bracket (1); A first driving source (3) is swingably mounted on the top of the connecting seat (2) and is used to provide power; A connecting rod assembly (4) is rotatably arranged at one end of the connecting seat (2), and the first driving source (3) can drive the connecting rod assembly (4) to swing back and forth; and Heat-sealing arm assemblies (5), the two heat-sealing arm assemblies (5) being mirror images of each other and slidably disposed at the bottom of the connecting seat (2), and the two heat-sealing arm assemblies (5) are both hingedly connected to the two output ends of the connecting rod assembly (4); Wherein: during heat sealing, the first driving source (3) drives the connecting rod assembly (4) to swing and then drives the adjacent heat sealing arm assemblies (5) to move closer to each other to complete the heat sealing.

2. The sealing device for tea packaging according to claim 1, characterized in that: The connecting seat (2) is adjustably inserted on the bracket (1) via a shaft sleeve; the connecting seat (2) is symmetrically provided with adjustment arms twice; and the adjustment arms are symmetrically provided with long strip-shaped through holes.

3. The sealing device for tea packaging according to claim 1, characterized in that: The first driving source (3) is a cylinder; the cylinder is swingably arranged on the top of the connecting seat (2) through a cylinder mounting seat; and a first sensor is provided corresponding to the telescopic position of the cylinder.

4. The sealing device for tea packaging according to claim 1, characterized in that: The connecting rod assembly (4) comprises a swing shaft (41); swing blocks (42) are fixedly provided at both ends of the swing shaft (41); both ends of the swing block (42) are hinged with a first pull rod (43) and a second pull rod (44); one end of the first pull rod (43) and the second pull rod (44) are hingedly connected to their respective heat sealing arm assemblies (5).

5. The sealing device for tea packaging according to claim 4, characterized in that: The length of the first pull rod (43) is much greater than the length of the second pull rod (44); and a pivot seat is provided at the center of the swing shaft (41).

6. The sealing device for tea packaging according to claim 1, characterized in that: The heat sealing arm assembly (5) comprises a movable arm plate (51) slidably arranged on a connecting seat (2) via a linear rail; an insulating block (52) is fixedly arranged on one side of the movable arm plate (51); and a heating assembly (53) is arranged on one end of the insulating block (52).

7. The sealing device for tea packaging according to any one of claims 1 to 6, characterized in that: The sealing device further comprises a belt entraining component (6), and the belt entraining component (6) is adjustably arranged below the heat-sealing arm assembly (5).

8. The sealing device for tea packaging according to claim 7, characterized in that: The entrainment component (6) comprises an entrainment base (61); an entrainment cylinder (62) is swingably provided below the entrainment base (61); a driving swing arm (63) is swingably provided on the entrainment base (61); the entrainment cylinder (62) can drive the driving swing arm (63) to swing back and forth; an entrainment arm (64) is provided at the top of the entrainment base (61) so as to move closer to or farther away from each other; the driving swing arm (63) is hingedly connected to the entrainment arm (64).

9. The sealing device for tea packaging according to claim 8, characterized in that: The entraining arm (64) is provided with a deformable pressure strip.

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