Sealing equipment for food packaging production

Abstract

The utility model belongs to the technical field of sealing equipment, particularly relates to food packaging production sealing equipment, and aims to solve the problems that an existing sealing device and an existing conveying belt are complex in matching and inconvenient to use and maintain subsequently, the following scheme is provided: the food packaging production sealing equipment comprises a support frame, and a first rotating shaft and a second rotating shaft are rotationally arranged in the support frame; transmission rollers are fixed to the surfaces of the first rotating shaft and the second rotating shaft correspondingly, and the surfaces of the two transmission rollers are in transmission connection with a conveying belt used for conveying packaging bags. A vertical frame is fixed to the side end of the supporting frame, a nickel-chromium electric heating flat belt used for sealing a packaging bag is arranged in the vertical frame, and a positioning assembly used for positioning the nickel-chromium electric heating flat belt is arranged in the vertical frame. A set of intermittent driving assemblies used for driving the conveying belt to conduct intermittent conveying are arranged in the supporting frame. According to the intermittent working mode, energy waste and mechanical abrasion caused by continuous sealing are effectively avoided, the production cost is reduced, the whole equipment is reasonable in structural design, all assemblies are tightly matched, and operation is easy and convenient.

Description

Technical Field

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

[0002] Food packaging bags are a type of packaging design. They are used to preserve and store food. They are thin film containers that come into direct contact with food and are used to hold and protect it. When transporting food, the bags often need to be sealed.

[0003] After searching, a Chinese patent with patent publication number CN214357109U discloses a food packaging and sealing device. This patent achieves pressure uniformity by adding a hydraulic telescopic rod and cooperating with a servo motor. However, this patent requires the conveyor belt to stop rotating when sealing the package and then drive the sealer to seal. In the existing technology, the coordination between the sealer and the conveyor belt is relatively cumbersome, which is inconvenient for use and subsequent maintenance. Summary of the Invention

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that the coordination of nickel-chromium electric heating flat belts and conveyor belts is relatively cumbersome, inconvenient to use and subsequent maintenance, and to propose a food packaging production sealing device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A food packaging production and sealing device comprises a support frame, wherein a first rotating shaft and a second rotating shaft rotate in the support frame, and transmission rollers are fixed to the surfaces of the first rotating shaft and the second rotating shaft, and the surfaces of the two transmission rollers are connected to a conveyor belt for conveying packaging bags;

[0007] A vertical frame is fixed to the side end of the support frame, a nickel-chromium electric heating flat strip for sealing the packaging bag is provided in the vertical frame, and a positioning component for positioning the nickel-chromium electric heating flat strip is provided in the vertical frame;

[0008] The support frame is provided with a group of intermittent drive components for driving the conveyor belt for intermittent transportation;

[0009] And an extrusion component used in conjunction with the intermittent drive component, wherein the extrusion component is arranged in the vertical frame and is used to drive the nickel-chromium electric heating flat belt to seal the packaging bag when the conveyor belt stops moving.

[0010] In one possible design, the intermittent drive assembly includes a fixed plate fixed to the side end of the vertical frame, a driving shaft rotates inside the fixed plate, a half-tooth gear is fixed to the surface of the driving shaft, the first shaft moves outward and passes through the side end of the support frame, a driven gear is fixed to the extended end surface of the first shaft, the driven gear and the half-tooth gear are intermittently meshed, a driving motor is fixed to the side end of the fixed plate, and the driving motor is fixedly connected to the driving shaft through a coupling.

[0011] In a possible design, the positioning assembly includes a first groove opened in the vertical frame, a slider slides in the first groove, two connecting rods are fixed to the bottom end of the slider, both of the connecting rods move downward and penetrate the vertical frame, the nickel-chromium electric heating flat strip is fixed to the side ends of the two connecting rods, two lifting springs are fixed to the bottom end of the slider, the other ends of the two lifting springs are fixed in the groove wall of the first groove, and the two lifting springs are respectively sleeved on the surfaces of the two connecting rods.

[0012] In one possible design, the extrusion assembly includes a slide plate sliding on the top end of the vertical frame, an extrusion plate is fixed to the side end of the slide plate, an extrusion rod is fixed to the side end of the extrusion plate, an extrusion groove is opened in the slider, the extrusion rod moves outward to pass through the extrusion groove, the extrusion rod and the inclined surface of the extrusion groove are in extrusion contact, and a cam is fixed to the surface of the driving shaft, and the cam is in extrusion contact with the side end of the extrusion plate.

[0013] In a possible design, the extrusion assembly includes a return spring fixed between the extrusion plate and the vertical frame, and the return spring is sleeved on the surface of the extrusion rod.

[0014] In a possible design, two sliding grooves connected to the first groove are opened in the vertical frame, and limiting blocks are slid in the two sliding grooves, and the sliding block is fixed between the two limiting blocks.

[0015] In the present application, the packaging bag is placed in the conveyor belt, and the driving motor is started to drive the driving shaft to rotate, the driving shaft drives the half-toothed gear to rotate, and the rotation of the half-toothed gear drives the driven gear to rotate. The rotation of the driven gear drives the first rotating shaft to rotate, and the first rotating shaft drives the transmission roller to rotate. The transmission roller drives the conveyor belt to move, and the conveyor belt drives the packaging bag to the lower side of the nickel-chromium electric heating flat belt. At this time, the half-toothed gear is not engaged with the driven gear, and the driving shaft drives the cam to rotate. The cam squeezes the extrusion plate to move, and the extrusion plate drives the slide to move. The slide drives the extrusion rod to move downward. When the extrusion rod moves, it squeezes the inclined surface of the extrusion groove. After the extrusion groove is squeezed, it drives the slider to move downward. The slider drives the nickel-chromium electric heating flat belt to seal the packaging bag through two connecting rods. When the half-toothed gear is re-engaged with the driven gear, the cam releases the extrusion plate, and the elasticity of the return spring pushes the extrusion plate to reset. The half-toothed gear drives the driven gear again to drive the conveyor belt to send the sealed packaging bag out, and at the same time, the unsealed packaging bag is sent to the lower side of the nickel-chromium electric heating flat belt.

[0016] Beneficial effects

[0017] In the present invention, the food packaging production and sealing equipment can achieve the effect of intermittently driving the conveyor belt to rotate through the intermittent drive component, and temporarily stopping the conveyor belt drive when the packaging bag is delivered to the lower side of the nickel-chromium electric heating flat belt;

[0018] In the utility model, the food packaging production and sealing equipment can achieve the effect of squeezing the nickel-chromium electric heating flat belt to move downward to seal the packaging bag when the intermittent drive component stops driving the conveyor belt through the extrusion component;

[0019] In the utility model, the precise positioning and sealing of the packaging bag are achieved through the coordinated use of the intermittent drive component and the extrusion component, which greatly improves the sealing quality and efficiency. The intermittent working mode effectively avoids the energy waste and mechanical wear caused by continuous sealing, and reduces production costs. The entire equipment structure is reasonably designed, the components are closely coordinated, the operation is simple, and it is easy to maintain and service. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first main perspective view of a food packaging production and sealing device proposed by the present invention;

[0021] Figure 2 This is a second main perspective view of a food packaging production and sealing device proposed by the present invention;

[0022] Figure 3 This is a first partial cross-sectional view of a food packaging production and sealing device proposed by the present invention;

[0023] Figure 4This is a second partial cross-sectional view of a food packaging production and sealing device proposed by the present invention;

[0024] Figure 5 This is a partial three-dimensional diagram of a food packaging production and sealing device proposed by the present invention.

[0025] In the figure: 1. support frame; 2. first rotating shaft; 201. second rotating shaft; 3. conveyor belt; 4. driven gear; 5. half-tooth gear; 6. fixed plate; 7. cam; 8. driving shaft; 9. driving motor; 10. slide plate; 11. vertical frame; 12. nickel-chromium electric heating flat belt; 13. transmission roller; 14. extrusion plate; 15. extrusion rod; 16. return spring; 17. first groove; 18. slider; 19. extrusion groove; 20. connecting rod; 21. lifting spring; 22. slide groove; 23. limit block; 24. photoelectric sensor. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] Reference Figure 1-Figure 5 A food packaging production and sealing equipment includes a support frame 1, a conveyor belt 3, a nickel-chromium electric heating flat belt 12 and supporting components. Specifically, a first rotating shaft 2 and a second rotating shaft 201 are rotatably installed in the support frame 1, and a transmission roller 13 is fixed on the surface of both. The conveyor belt 3 is connected to form a conveying path for the packaging bag. A vertical frame 11 is provided at the side end of the support frame 1, and the vertical frame 11 integrates the nickel-chromium electric heating flat belt 12 and a positioning component, an intermittent drive component and an extrusion component.

[0029] In order to achieve intermittent transportation of packaging bags, the intermittent drive assembly in this embodiment includes a fixed plate 6 fixed to the side end of the vertical frame 11, and a driving shaft 8 is rotatably mounted on the fixed plate 6. A half-tooth gear 5 is fixed on the surface of the driving shaft 8, and the first shaft 2 passes through the side end of the support frame 1 outward and is fixed with a driven gear 4. The driven gear 4 and the half-tooth gear 5 are intermittently engaged under the drive of the driving motor 9, thereby controlling the intermittent movement of the conveyor belt 3.

[0030] In order to ensure that the nickel-chromium electric heating flat strip 12 can be accurately aligned with the packaging bag for sealing, the positioning component includes a first groove 17 provided in the vertical frame 11, and a slider 18 is slidably installed in the first groove 17; the bottom of the slider 18 is connected to the nickel-chromium electric heating flat strip 12 through two connecting rods 20 (a photoelectric sensor 24 is installed on one side of the vertical frame 11. After detecting that the nickel-chromium electric heating flat strip 12 moves down to a predetermined position, the photoelectric sensor 24 generates an electrical signal and transmits it to the PLC. After receiving the signal, the PLC drives the coil of the contactor to energize and close the contacts of the contactor. In this way, the power circuit is connected, and current can flow through the nickel-chromium electric heating flat strip 12 to cause it to heat up), and automatic resetting and buffering are achieved through two lifting springs 21 to ensure the stable and precise positioning of the nickel-chromium electric heating flat strip 12.

[0031] The extrusion assembly utilizes the intermittent motion characteristics of the conveyor belt 3 to achieve automatic activation of the nickel-chromium electric heating flat strip 12; specifically, a slide plate 10 is slidably installed on the top of the vertical frame 11, and an extrusion plate 14 and an extrusion rod 15 are fixed on the slide plate 10; when the drive shaft 8 rotates, the cam 7 pushes the extrusion plate 14 to slide downward, and the extrusion rod 15 then enters the extrusion groove 19 in the slider 18. The extrusion groove 19 has an inclined surface and a horizontal surface, and the inclined surface is connected to the horizontal surface. The inclined surface extrusion action drives the slider 18 and the nickel-chromium electric heating flat strip 12 to move downward to complete the sealing; the reset spring 16 is used to reset the extrusion plate 14 after the sealing is completed.

[0032] This application can be used in food packaging production, and can also be used in other fields applicable to this application.

[0033] Example 2

[0034] refer to Figures 1-4 , improved on the basis of Example 1: A food packaging production sealing device, used in the field of sealing equipment technology, in order to enhance the overall stability and flexibility of the equipment, two slide grooves 22 connected to the first groove 17 are further provided in the vertical frame 11, and limiting blocks 23 are sliding in the two slide grooves 22, and the slider 18 is fixed between the two limiting blocks 23.

[0035] When in use, the packaging bag is placed in the conveyor belt 3, and the driving motor 9 is started to drive the driving shaft 8 to rotate, and the driving shaft 8 drives the half-toothed gear 5 to rotate, and the half-toothed gear 5 rotates to drive the driven gear 4 to rotate, and the driven gear 4 rotates to drive the first rotating shaft 2 to rotate, and the first rotating shaft 2 drives the transmission roller 13 to rotate, and the transmission roller 13 drives the conveyor belt 3 to move, and the conveyor belt 3 drives the packaging bag to the lower side of the nickel-chromium electric heating flat belt 12. At this time, the half-toothed gear 5 is not engaged with the driven gear 4, and the driving shaft 8 drives the cam 7 to rotate, and the cam 7 squeezes the extrusion plate 14 to move, and the extrusion plate 14 with The movable slide 10 and the extrusion rod 15 move to one side. When the extrusion rod 15 moves, it squeezes the inclined surface of the extrusion groove 19. After the extrusion groove 19 is squeezed, the slider 18 moves downward. The slider 18 drives the nickel-chromium electric heating flat belt 12 through two connecting rods 20 to seal the packaging bag. When the half-tooth gear 5 is re-engaged with the driven gear 4, the cam 7 releases the extrusion plate 14, and the elasticity of the return spring 16 pushes the extrusion plate 14 to reset. The half-tooth gear 5 drives the driven gear 4 again to drive the conveyor belt 3 to send out the sealed packaging bag, and at the same time send the unsealed packaging bag to the lower side of the nickel-chromium electric heating flat belt 12.

[0036] However, as is well known to those skilled in the art, the working principle and wiring method of the drive motor 9 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A food packaging production sealing device, characterized in that, include: A support frame (1), wherein a first rotating shaft (2) and a second rotating shaft (201) are rotated in the support frame (1), transmission rollers (13) are fixed to the surfaces of the first rotating shaft (2) and the second rotating shaft (201), and the surfaces of the two transmission rollers (13) are connected to a conveyor belt (3) for conveying packaging bags; A vertical frame (11) is fixed to the side end of the support frame (1), a nickel-chromium electric heating flat strip (12) for sealing the packaging bag is provided in the vertical frame (11), and a positioning component for positioning the nickel-chromium electric heating flat strip (12) is provided in the vertical frame (11); The support frame (1) is provided with a group of intermittent drive components for driving the conveyor belt (3) for intermittent transportation; And an extrusion assembly used in conjunction with the intermittent drive assembly, wherein the extrusion assembly is arranged in the vertical frame (11) and is used to drive the nickel-chromium electric heating flat belt (12) to seal the packaging bag when the conveyor belt (3) stops moving.

2. A food packaging production and sealing device according to claim 1, characterized in that: The intermittent drive assembly includes a fixed plate (6) fixed to the side end of the vertical frame (11), a driving shaft (8) rotates inside the fixed plate (6), a half-tooth gear (5) is fixed to the surface of the driving shaft (8), the first shaft (2) moves outward and passes through the side end of the support frame (1), a driven gear (4) is fixed to the extended end surface of the first shaft (2), the driven gear (4) and the half-tooth gear (5) are intermittently meshed, and a driving motor (9) is fixed to the side end of the fixed plate (6), and the driving motor (9) is fixedly connected to the driving shaft (8) through a coupling.

3. A food packaging production and sealing device according to claim 2, characterized in that: The positioning assembly includes a first groove (17) opened in the vertical frame (11), a slider (18) slides in the first groove (17), two connecting rods (20) are fixed to the bottom end of the slider (18), and the two connecting rods (20) are movable downward to penetrate the vertical frame (11), the nickel-chromium electric heating flat strip (12) is fixed to the side ends of the two connecting rods (20), and two lifting springs (21) are fixed to the bottom end of the slider (18), and the other ends of the two lifting springs (21) are fixed in the groove wall of the first groove (17), and the two lifting springs (21) are respectively sleeved on the surfaces of the two connecting rods (20).

4. A food packaging production and sealing device according to claim 3, characterized in that: The extrusion assembly includes a slide plate (10) sliding on the top of the vertical frame (11), an extrusion plate (14) is fixed to the side end of the slide plate (10), an extrusion rod (15) is fixed to the side end of the extrusion plate (14), an extrusion groove (19) is opened in the slider (18), the extrusion groove (19) has an inclined surface and a horizontal surface, the inclined surface is connected to the horizontal surface, the extrusion rod (15) moves outward to penetrate into the extrusion groove (19), the extrusion rod (15) and the inclined surface of the extrusion groove (19) are in extrusion contact, a cam (7) is fixed to the surface of the driving shaft (8), and the cam (7) and the side end of the extrusion plate (14) are in extrusion contact.

5. The food packaging production and sealing equipment according to claim 4, characterized in that: The extrusion assembly further comprises a return spring (16) fixed between the extrusion plate (14) and the vertical frame (11), and the return spring (16) is sleeved on the surface of the extrusion rod (15).

6. The food packaging production and sealing equipment according to claim 3, characterized in that: Two slide grooves (22) connected to the first groove (17) are provided in the vertical frame (11), and limit blocks (23) are slidably provided in the two slide grooves (22), and the slider (18) is fixed between the two limit blocks (23).

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