Bagless packaging machine

Abstract

The utility model discloses a kind of no-support packaging machines, it is related to packaging machine technical field.The no-support packaging machine includes: first clamping and feeding component, for conveying material along conveying passage, it includes clamping and feeding drive structure, clamping and feeding pushing piece, clamping and feeding compression piece, clamping and feeding elastic piece, clamping and feeding elastic piece makes compression piece keep the tendency of being close to pushing piece, to stabilize clamping no-support material;Form cylinder component, for making packaging film into cylindrical and carrying out middle seal;Second clamping and feeding component is located downstream of first clamping and feeding component, including second clamping and feeding drive device and multiple second clamping and feeding clamps of flexible material distributed on both sides, second clamping and feeding component is used for flexible clamping and conveying packaging film cylinder wrapped with material;Reciprocating end seal device.The scheme solves the problems of unstable material conveying, easy to pour and difficult to pull after packaging film is formed into cylinder in no-support packaging by the clamping effect of first clamping and feeding component and the flexible conveying of second clamping and feeding component.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to palletless packaging machines. Background Technology

[0002] In the packaging process of industries such as food and daily necessities, some materials do not require the use of pallets. Instead, the materials are placed directly into packaging bags, and then the bags are sealed in the middle and at both ends to complete the packaging.

[0003] Existing palletless packaging machines typically use a pusher-type conveyor chain to push materials into the packaging film. However, for multi-piece stacked or lightweight materials, relying solely on pushers can easily cause the materials to tip over, scatter, or slide relative to each other during transport. This results in inaccurate material posture when entering the packaging film tube, affecting the packaging effect and even causing malfunctions such as material cutting or machine jamming. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a palletless packaging machine to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0005] The solution to the technical problem of this utility model is: A trayless packaging machine has three mutually orthogonal directions: a first direction, a second direction, and a third direction; the trayless packaging machine is provided with a material conveying channel extending along the first direction; the trayless packaging machine includes: A first clamping assembly, the first clamping assembly being used to move material along the material conveying channel; the first clamping assembly comprising: A first clamping drive structure is provided with a clamping loop path; A clamping and pushing component is provided, and the clamping and pushing component is fixedly installed on the first clamping drive structure; The clamping and pressing component is provided in multiple ways. Each clamping and pressing component corresponds to a clamping and pushing component. The clamping and pressing component is movably connected to the first clamping and driving structure. The entire clamping and pressing component or its end can be close to or away from the clamping and pushing component. The first clamping drive structure drives the clamping pusher and the clamping clamping member to move cyclically along the clamping cycle path; A clamping elastic element is provided to ensure that the clamping clamping element always tends to move closer to the clamping pusher. A tubing assembly, used to perform tubing and center-sealing operations on packaging bags; A second clamping assembly is disposed downstream of the first clamping assembly and is connected to the first clamping assembly; A reciprocating end-sealing device is disposed downstream of the cylindrical assembly.

[0006] As a further improvement to the above technical solution, the second clamping component includes: The second clamping drive structure is provided at least once; The second clamping drive device is provided in two, and the two second clamping drive devices are arranged at intervals along the second direction. The second clamping drive structure drives the second clamping drive device to work. The second clamping gripper is a flexible component. Multiple second clamping grippers are provided, and the multiple second clamping grippers are evenly distributed on two second clamping drive devices. The second clamping drive devices drive the multiple second clamping grippers to circulate. The second clamping grippers are used to continue to transport the packaging film tube and the material loaded into the packaging film tube along the material conveying channel.

[0007] As a further improvement to the above technical solution, there are two second clamping drive structures, each corresponding to one of the two second clamping drive devices. The two second clamping drive structures drive the two second clamping drive devices respectively, so that the two second clamping drive devices work synchronously.

[0008] As a further improvement to the above technical solution, the second clamping drive structure is a servo motor.

[0009] As a further improvement to the above technical solution, the second clamping gripper is a silicone component.

[0010] As a further improvement to the above technical solution, the second clamping drive device includes: The second clamping wheel is provided in two parts, which are arranged along the first direction; the output end of the second clamping drive structure is connected to one of the second clamping wheels. The second clamping cycle structure bypasses the two second clamping wheels and is connected to the second clamping wheel transmission structure.

[0011] As a further improvement to the above technical solution, the second clamping assembly further includes: A width adjustment structure is provided for adjusting the distance between the two second clamping drive devices.

[0012] As a further improvement to the above technical solution, The tube forming assembly includes: A bag-forming device, wherein the bag-forming device is used to roll a packaging bag film into a cylindrical shape; A center-sealing device is located downstream of the bag-forming device and below the material conveying channel. The center-sealing device is used to center-seal the packaging film tube.

[0013] As a further improvement to the above technical solution, the clamping and pressing member can swing relative to the clamping and pushing member about an axis parallel to the second direction, so that the end of the clamping and pressing member away from the first clamping drive structure moves closer to or away from the clamping and pushing member.

[0014] As a further improvement to the above technical solution, the clamping and pressing component includes: A first connecting part is connected to the first clamping drive structure; The second connecting part is fixed to the end of the first connecting part away from the first clamping drive structure, and the second connecting part and the first connecting part are arranged at an angle.

[0015] The beneficial effects of this invention are as follows: the material is clamped from both the front and back by the cooperation of the clamping and pushing component and the clamping and pressing component in the first clamping assembly. This clamping method is more stable than a simple single pushing structure that pushes the material, and can effectively prevent the material from tipping over or scattering during conveying. It is particularly suitable for packaging multi-sheet materials without pallets. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 yes Figure 1 A magnified view of part B in the middle section; Figure 4 This is a structural schematic diagram of the present invention from another angle.

[0018] In the figure, 001 is the frame; 100 is the first clamping assembly; 110 is the first clamping drive structure; 120 is the clamping pusher; 130 is the clamping clamp; 131 is the first connecting part; 132 is the second connecting part; 200 is the second clamping assembly; 210 is the second clamping drive device; 220 is the second clamping drive structure; 230 is the second clamping gripper; 240 is the width adjustment structure; 300 is the tube forming assembly; 310 is the bag forming device; 320 is the center sealing device; and 400 is the reciprocating end sealing device. Detailed Implementation

[0019] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0020] Reference Figures 1 to 4 This utility model discloses a trayless packaging machine, which has a first direction, a second direction, and a third direction. The first direction, the second direction, and the third direction are orthogonally arranged to each other. Referring to the figure, the first direction is parallel to the X-axis in the figure, the second direction is parallel to the Y-axis in the figure, and the third direction is parallel to the Z-axis in the figure.

[0021] This trayless packaging machine is equipped with a material conveying channel that extends along the first direction. The materials to be packaged complete the process of conveying, bagging, and sealing in the material conveying channel.

[0022] The palletless packaging machine mainly includes: frame 001, first clamping assembly 100, tube forming assembly 300, second clamping assembly 200, and reciprocating end sealing device 400.

[0023] The first clamping assembly 100 is used to convey materials along the material conveying channel so that the materials are stably fed into the cylindrical assembly 300.

[0024] Specifically, the first clamping assembly 100 includes: a first clamping drive structure 110, a clamping pusher 120, a clamping clamping member 130, and a clamping elastic member (the clamping elastic member is not shown in the figure).

[0025] The first clamping drive structure 110 is fixedly mounted on the frame 001. The first clamping drive structure 110 has a closed clamping cycle path.

[0026] In this embodiment, the first clamping drive structure 110 is configured as a transmission mechanism including a servo motor, a chain, and two sprockets. The specific construction of the first clamping drive structure 110 will not be described in detail here. In other embodiments, the first clamping drive structure 110 may also be configured as a transmission mechanism including a servo motor, a synchronous belt, and two synchronous pulleys. Those skilled in the art can select the specific construction of the first clamping drive structure 110 according to actual needs.

[0027] The number of clamping and pushing components 120 is set to multiple, and multiple first clamping drive structures 110 are arranged at equal intervals along the clamping cycle path. The clamping and pushing components 120 are fixedly connected to the chains of the first clamping drive structures 110, and the clamping and pushing components 120 are used to abut against the rear end of the material to push the material forward.

[0028] Multiple clamping and pressing components 130 are also provided, with each clamping and pressing component 130 corresponding to one of the clamping and pushing components 120. A material clamping space is formed between the clamping and pressing components 130 and the clamping and pushing components 120. The clamping and pressing components 130 are movably connected to the first clamping drive structure 110, so that the clamping and pressing components 130 can move closer to or further away from the clamping and pushing components 120 to clamp the material and prevent it from tipping over during the conveying process, thereby ensuring that subsequent steps can proceed smoothly.

[0029] Specifically, in this embodiment, a mounting base is provided between the end of the clamping and pressing member 130 and the link of the first clamping drive structure 110. The end of the clamping and pressing member 130 is hinged to the mounting base. The clamping and pressing member 130 can swing relative to the mounting base and the first clamping drive structure 110 about an axis parallel to the second direction, so that the end of the clamping and pressing member 130 away from the first clamping drive structure 110 can approach or move away from the clamping and pushing member 120.

[0030] Specifically, the clamping elastic element is disposed between the mounting base and the clamping clamping member 130. The force of the clamping elastic element causes the end of the clamping clamping member 130 away from the first clamping drive structure 110 to always tend to move closer to the clamping pusher member 120. Specifically, in this embodiment, the clamping elastic element is set as a cylindrical spring. In other embodiments, the clamping elastic element can also be set as a conventional elastic component such as a torsion spring. Those skilled in the art can select the specific structure of the clamping elastic element according to actual needs.

[0031] Specifically, in this embodiment, the clamping and pressing component 130 includes a first connecting part 131 and a second connecting part 132 fixedly arranged with each other. The first connecting part 131 is connected to the mounting base, and the second connecting part 132 is disposed on the side of the first connecting part 131 away from the first clamping drive structure 110. The first connecting part 131 and the second connecting part 132 are arranged at an angle, and the included angle between them is an obtuse angle, which will facilitate better adaptation to the shape of the material and clamping.

[0032] In other embodiments, the clamping and pressing member 130 may be configured to include two hinged first connecting parts 131 and second connecting parts 132, with an elastic member provided between the first connecting parts 131 and the second connecting parts 132, so that the clamping and pressing member 130 can better adapt to the material.

[0033] Working principle: When the material is fed into this trayless packaging machine, the clamping and pushing component 120 abuts against the rear end of the material, while the clamping and pressing component 130 presses against the front end of the material under the action of the elastic component. The material is clamped between the clamping and pushing component 120 and the clamping and pressing component 130, so that the material is not easy to tip over or fly out during the material conveying process, thereby realizing the stable conveying of trayless materials.

[0034] Specifically, the tubular forming assembly 300 is located at the end of the first clamping assembly 100. The tubular forming assembly 300 includes: a bag forming device 310 and a center sealing device 320.

[0035] The bag-forming device 310 is fixedly installed on the frame 001. The bag-forming device 310 is used to guide the packaging film and fold the packaging film to form a cylindrical structure so that the packaging film can wrap the material. The bag-forming device 310 is a conventional device used in the art, and its specific structure will not be described in detail here.

[0036] The sealing device 320 is fixedly installed on the frame 001. The sealing device 320 is located downstream of the bag forming device 310 and below the material channel. The sealing device 320 is used to heat seal the longitudinal seam of the packaging film.

[0037] After the first clamping assembly 100 feeds the material into the membrane cylinder, the clamping and pressing member 130 separates from the material.

[0038] The second clamping assembly 200 is located downstream of the first clamping assembly 100 and is connected to the first clamping assembly 100. When the material enters the packaging film tube, the second clamping assembly 200 provides power to the material so that the material continues to be conveyed forward, preventing relative slippage between the packaging film and the material.

[0039] Specifically, the second clamping assembly 200 includes: a width adjustment structure 240, two second clamping drive structures 220, two second clamping drive devices 210, and a plurality of second clamping grippers 230.

[0040] Specifically, in this embodiment, the width adjustment structure 240 includes an adjustment base, an adjustment screw, an adjustment handle, and other structures. The adjustment base is fixedly installed on the frame 001, and the width adjustment structure 240 has two output ends.

[0041] Two second clamping drive devices 210 are arranged at intervals along the second direction, and are located on both sides of the material conveying channel. The two clamping drive devices are respectively mounted on the two output ends of the width adjustment structure 240 through connecting frames. When the adjusting screw rotates, the two output ends of the width adjustment structure 240 move along the second direction, thereby adjusting the distance between the two second clamping drive devices 210 to accommodate materials of different widths.

[0042] Two second clamping drive structures 220 are respectively configured to correspond to two second clamping drive devices 210. Both second clamping drive structures 220 are configured as servo motors. The first clamping drive structure 110 is used to drive the corresponding clamping drive device. The two first clamping drive structures 110 have the same rotation speed and work synchronously to ensure that the two clamping drive devices operate synchronously.

[0043] The number of second clamping grippers 230 is set to multiple, and the multiple second clamping grippers 230 are evenly distributed in each second clamping drive device 210. Specifically, the second clamping grippers 230 are flexible components, preferably silicone components. Silicone has good friction and elasticity. When the drive device is working, the second clamping grippers 230 on both sides move towards the middle, clamping the two sides of the packaging film tube (at this time, the material is inside the packaging film tube). Because the second clamping grippers 230 are flexible, they can provide sufficient friction to drive the packaging film tube and the material forward without damaging the material.

[0044] The second clamping drive device 210 includes a second clamping circulation structure and a second clamping wheel. Two second clamping wheels are arranged at intervals along a first direction. The leading second clamping wheel is fixedly connected to the output end of the second clamping drive structure 220, so that the second clamping drive structure 220 drives the second clamping wheel to rotate when it operates. The second clamping circulation structure bypasses the two second clamping wheels and is drively connected to the second clamping wheels. Specifically, in this embodiment, the second clamping wheel is a sprocket, and the second clamping circulation structure is a chain. In other embodiments, the second clamping wheel can be a synchronous pulley, and the second clamping circulation structure can be a synchronous belt. Those skilled in the art can select the specific construction of the second clamping circulation structure and the second clamping wheel according to actual needs.

[0045] The reciprocating end-sealing device 400 is a conventional device in this field, and its specific structure will not be described in detail here. The reciprocating end-sealing device 400 is mounted on the frame 001 and is located at the rear end of the material conveying channel. The reciprocating end-sealing device 400 performs lateral sealing and cutting of the packaging film tube.

[0046] Downstream of the reciprocating end-sealing device 400 is a conveyor belt for outputting the packaged products.

[0047] Overall workflow: The material is placed on the first clamping assembly 100, and then the clamping pusher 120 and clamping clamping member 130 hold the material. The first clamping assembly 100 transports the material in a first direction. The material moves to the forming assembly 300, where the packaging film forms a packaging film tube. The material is then fed into the packaging film tube, so that the material is wrapped by the packaging film tube. The first clamping assembly 100 separates from the material that has entered the packaging film tube. The second clamping jaws 230 of the second clamping assembly 200 clamp the packaging film tube and the material from both sides. The second clamping assembly 200 continues to transport the packaging film tube and the material. During the transport of the packaging film tube and the material by the second clamping assembly 200, the middle sealing device 320 completes the back sealing of the packaging film tube. The packaging film tube and the material are transported to the reciprocating end sealing device 400, which performs a horizontal sealing and cutting of the packaging film tube, and then outputs the finished product.

[0048] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A palletless packaging machine, characterized in that: It has a first direction, a second direction, and a third direction that are mutually orthogonal; The trayless packaging machine is provided with a material conveying channel extending in a first direction; The trayless packaging machine includes: A first clamping assembly, the first clamping assembly being used to move material along the material conveying channel; the first clamping assembly comprising: A first clamping drive structure is provided with a clamping loop path; A clamping and pushing component is provided, and the clamping and pushing component is fixedly installed on the first clamping drive structure; The clamping and pressing component is provided in multiple ways. Each clamping and pressing component corresponds to a clamping and pushing component. The clamping and pressing component is movably connected to the first clamping and driving structure. The entire clamping and pressing component or its end can be close to or away from the clamping and pushing component. The first clamping drive structure drives the clamping pusher and the clamping clamping member to move cyclically along the clamping cycle path; A clamping elastic element is provided to ensure that the clamping clamping element always tends to move closer to the clamping pusher. A tubing assembly, used to perform tubing and center-sealing operations on packaging bags; A second clamping assembly is disposed downstream of the first clamping assembly and is connected to the first clamping assembly; A reciprocating end-sealing device is disposed downstream of the cylindrical assembly.

2. The trayless packaging machine according to claim 1, characterized in that: The second clamping assembly includes: The second clamping drive structure is provided at least once; The second clamping drive device is provided in two, and the two second clamping drive devices are arranged at intervals along the second direction. The second clamping drive structure drives the second clamping drive device to work. The second clamping gripper is a flexible component. Multiple second clamping grippers are provided, and the multiple second clamping grippers are evenly distributed on two second clamping drive devices. The second clamping drive devices drive the multiple second clamping grippers to circulate. The second clamping grippers are used to continue to transport the packaging film tube and the material loaded into the packaging film tube along the material conveying channel.

3. The trayless packaging machine according to claim 2, characterized in that: There are two second clamping drive structures, and each of the two second clamping drive structures corresponds to one of the two second clamping drive devices. The two second clamping drive structures drive the two second clamping drive devices respectively, so that the two second clamping drive devices work synchronously.

4. The trayless packaging machine according to claim 2, characterized in that: The second clamping drive structure is a servo motor.

5. The trayless packaging machine according to claim 2, characterized in that: The second clamping jaw is a silicone component.

6. The trayless packaging machine according to claim 2, characterized in that: The second clamping drive device includes: The second clamping wheel is provided in two parts, which are arranged along the first direction; the output end of the second clamping drive structure is connected to one of the second clamping wheels. The second clamping cycle structure bypasses the two second clamping wheels and is connected to the second clamping wheel transmission structure.

7. The trayless packaging machine according to claim 2, characterized in that: The second clamping assembly further includes: A width adjustment structure is provided for adjusting the distance between the two second clamping drive devices.

8. The trayless packaging machine according to claim 1, characterized in that: The tube forming assembly includes: A bag-forming device, wherein the bag-forming device is used to roll a packaging bag film into a cylindrical shape; A center-sealing device is located downstream of the bag-forming device and below the material conveying channel. The center-sealing device is used to center-seal the packaging film tube.

9. The trayless packaging machine according to claim 1, characterized in that: The clamping and pressing member can swing relative to the clamping and pushing member about an axis parallel to the second direction, so that the end of the clamping and pressing member away from the first clamping drive structure moves closer to or away from the clamping and pushing member.

10. The trayless packaging machine according to claim 1, characterized in that: The clamping and pressing component includes: A first connecting part is connected to the first clamping drive structure; The second connecting part is fixed to the end of the first connecting part away from the first clamping drive structure, and the second connecting part and the first connecting part are arranged at an angle.

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