Strip packaging machine

Abstract

A strip packaging machine comprises a filling mechanism, a longitudinal sealing mechanism, a transverse sealing mechanism and a cutter discharging mechanism which are sequentially arranged from top to bottom, a traction guide mechanism is arranged between the transverse sealing mechanism and the cutter discharging mechanism, and the traction guide mechanism comprises at least two sets of traction rollers arranged in the vertical direction. Each group of traction rollers comprises a first roller and a second roller which are opposite in rotation direction, and a guide channel is formed between the first roller and the second roller. A traction guide mechanism is arranged between the transverse sealing mechanism and the cutter discharging mechanism and comprises at least two sets of traction rollers arranged in the vertical direction, the transversely-sealed strip packages pass through a guide channel between the first roller and the second roller, and auxiliary guide is provided through power of the first roller and the second roller. Therefore, the strip package is tensioned and guided, the freedom degree of the strip package is limited, the accuracy of the cutting position of a cutter of the cutter discharging mechanism is improved, and the whole structure is simple and compact and can be used in a narrow space between a transverse sealing mechanism and the cutter discharging mechanism.

Description

Technical Field

[0001] The utility model relates to the field of food and drug packaging machinery, in particular to a strip packing machine. Background Art

[0002] The strip bag packaging equipment occupies an important market share in the field of automatic packaging equipment. Its main structure includes a film holder, a filling component, a longitudinal seal, a transverse seal, a cutting knife discharge, etc. After a series of processes such as unwinding, tensioning, coding, filling, longitudinal sealing, and transverse sealing of the packaging film material, a cutting action needs to be performed and discharged, and then transported to the working station of the next equipment.

[0003] After the packaging film material has undergone the longitudinal seal and transverse seal processes, its shape has become a continuous long strip (usually called a strip package or strip bag), and it has a very large degree of freedom when advancing from top to bottom. In the next cutting knife cutting process, the cutting knife has relatively strict requirements for the accuracy of the cutting position, and the existing strip bag packaging equipment cannot meet these requirements. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a strip packing machine with a simple and compact structure, which is conducive to tightening and guiding the strip package and improving the accuracy of the cutting position of the cutting knife.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A strip packing machine includes a filling mechanism, a longitudinal seal mechanism, a transverse seal mechanism, and a cutting knife discharge mechanism arranged in sequence from top to bottom. A traction and guiding mechanism is provided between the transverse seal mechanism and the cutting knife discharge mechanism. The traction and guiding mechanism includes at least two groups of traction rollers arranged in the vertical direction. Each group of traction rollers includes a first roller and a second roller with opposite rotation directions, and a guiding channel is formed between the first roller and the second roller.

[0007] As a further improvement of the above technical solution: V-shaped grooves are provided on the circumferential surfaces of the first roller and the second roller.

[0008] As a further improvement of the above technical solution: A rubber coating layer for increasing friction is provided on the surface of the V-shaped groove.

[0009] As a further improvement of the above technical solution: A U-shaped limiting member is provided between the two groups of traction rollers, and the opening of the U-shaped limiting member faces the guiding channel.

[0010] As a further improvement of the above technical solution: A guiding inclined surface is provided on the upper side of the U-shaped limiting member.

[0011] As a further improvement of the above technical solution: The distance between the first roller and the second roller is adjustable.

[0012] As a further improvement of the above technical solution: it further includes a scale for measuring the distance between the first roller and the second roller.

[0013] As a further improvement of the above technical solution: it further includes a driving mechanism, the driving mechanism includes a servo motor, a speed reducer and a driving bearing connected in sequence, the speed reducer is arranged on a mounting plate, and multiple groups of transition bearing assemblies are also arranged on the mounting plate. Each group of the transition bearing assemblies includes two coaxially arranged transition bearings and is respectively arranged on the front and back of the mounting plate. Each of the transition bearings on the front is connected to the driving bearing through a transition belt. A plurality of traction guiding mechanisms are provided and installed on the front of the mounting plate. The first roller and the second roller are both coaxially provided with transmission bearings, and the transmission bearings are arranged on the back of the mounting plate. The transition bearings on the back are provided with transmission belts, and the transmission belts are alternately wound around each of the transmission bearings up and down.

[0014] As a further improvement of the above technical solution: the mounting plate is provided with a transition belt tensioning component in the area inside the transition belt.

[0015] As a further improvement of the above technical solution: reinforcing ribs are provided on both the upper and lower parts of the back of the mounting plate.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: in the strip packing machine disclosed by the present utility model, a traction guiding mechanism is provided between the transverse sealing mechanism and the cutter discharging mechanism. The traction guiding mechanism includes at least two groups of traction rollers arranged in the up and down direction. The strip package after transverse sealing passes through the guiding channel between the first roller and the second roller. The power of the first roller and the second roller is used to provide auxiliary guiding, so as to tighten and straighten the strip package, limit the degree of freedom of the strip package, improve the accuracy of the cutting position of the cutter of the cutter discharging mechanism, and the overall structure is simple and compact, and can be used in the narrow space between the transverse sealing mechanism and the cutter discharging mechanism.

[0017] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic side view structure diagram of the strip packing machine of the present utility model.

[0019] Figure 2 It is a schematic front view structure diagram of the traction guiding mechanism in the present utility model.

[0020] Figure 3 It is a schematic top view structure diagram of the traction guiding mechanism in the present utility model.

[0021] Figure 4It is a schematic side view structure of the traction guiding mechanism in the present utility model.

[0022] Figure 5 It is a schematic structure diagram of the driving mechanism in the present utility model.

[0023] Each label in the figure represents:

[0024] 100, filling mechanism; 200, longitudinal sealing mechanism; 300, transverse sealing mechanism; 400, cutter discharging mechanism;

[0025] 1, traction guiding mechanism; 11, first roller; 12, second roller; 13, guiding channel; 14, V-shaped groove; 2, U-shaped limiting member; 3, guiding inclined surface; 4, scale; 5, mounting plate; 51, reinforcing rib; 6, driving mechanism; 61, servo motor; 62, speed reducer; 63, driving bearing; 64, transition bearing; 65, transition belt; 66, driving bearing; 67, driving belt; 68, transition belt tensioning member; 69, idler wheel. Specific embodiments

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0028] In the present utility model, unless otherwise clearly specified and limited, the terms "assembly", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] The present utility model will be further described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0030] Figures 1 to 5 An embodiment of the strip packing machine of the present utility model is shown. The strip packing machine of this embodiment includes a filling mechanism 100, a longitudinal sealing mechanism 200, a transverse sealing mechanism 300, and a cutter discharging mechanism 400 arranged in sequence from top to bottom. A traction guiding mechanism 1 is provided between the transverse sealing mechanism 300 and the cutter discharging mechanism 400. For specific reference, see Figure 2 , the traction guiding mechanism 1 includes two groups of traction rollers arranged in the vertical direction. Each group of traction rollers includes a first roller 11 and a second roller 12 with opposite rotation directions (the first roller 11 rotates clockwise, while the second roller 12 rotates counterclockwise, jointly assisting the strip package to move downward). A guiding channel 13 is formed between the first roller 11 and the second roller 12. Of course, in other embodiments, the number of groups of traction rollers of the traction guiding mechanism 1 can also be three or others, which is applicable to longer strip packages, but will increase the complexity of the structure and cost.

[0031] In the strip packing machine of this embodiment, a traction guiding mechanism 1 is provided between the transverse sealing mechanism 300 and the cutter discharging mechanism 400. The traction guiding mechanism 1 includes two groups of traction rollers arranged in the vertical direction. The strip package after transverse sealing passes through the guiding channel 13 between the first roller 11 and the second roller 12, and the power of the first roller 11 and the second roller 12 provides auxiliary guiding, thereby tightening and guiding the strip package, restricting the freedom degree of the strip package, improving the accuracy of the cutting position of the cutter of the cutter discharging mechanism 400, and the overall structure is simple and compact, and can be used in the narrow space between the transverse sealing mechanism 300 and the cutter discharging mechanism 400.

[0032] For specific reference, see Figure 4 , further, in this embodiment, V-shaped grooves 14 are provided on the circumferential surfaces of the first roller 11 and the second roller 12. The V-shaped grooves 14 can increase the contact area between the first roller 11, the second roller 12 and the strip package, thereby increasing the friction force and the tightening effect, and the structure is simple and effective.

[0033] Furthermore, in this embodiment, a rubber coating layer (not shown in the figure) for increasing the friction force is provided on the surface of the V-shaped groove 14. The rubber coating layer can further increase the friction force and the tightening effect between the first roller 11, the second roller 12 and the strip package.

[0034] For specific reference, see Figure 2 and Figure 4 , further, in this embodiment, a U-shaped limiting member 2 is provided between the two groups of traction rollers. The opening of the U-shaped limiting member 2 faces the guiding channel 13. The U-shaped limiting member 2 cooperates with the guiding channel 13 to further limit the movement space of the strip package in the front-rear direction, so that the strip package moves as much as possible from top to bottom, and the structure is simple and effective.

[0035] Further, in this embodiment, a guiding inclined surface 3 is provided on the upper side of the U-shaped limiting member 2. The guiding inclined surface 3 guides the strip package to smoothly enter the U-shaped limiting member 2, making the downward movement process of the strip package smoother.

[0036] As a preferred embodiment, the distance between the first roller 11 and the second roller 12 is adjustable. By adjusting the distance between the first roller 11 and the second roller 12, it can be applicable to strip packages of different widths, improving the applicable range of the device. Preferably, the first roller 11 and the second roller 12 are installed on the mounting plate 5 through horizontal waist-shaped holes in cooperation with threaded fasteners, and the distance between the first roller 11 and the second roller 12 can be conveniently adjusted.

[0037] As a preferred embodiment, the strip packing machine further includes a scale 4 for measuring the distance between the first roller 11 and the second roller 12. When the operator adjusts the distance between the first roller 11 and the second roller 12, he can intuitively understand the numerical value with the help of the scale 4, and the adjustment is more convenient and fast.

[0038] Specifically refer to Figure 2 and Figure 5 , further, in this embodiment, the strip packing machine further includes a driving mechanism 6. The driving mechanism 6 includes a servo motor 61, a speed reducer 62 and a driving bearing 63 connected in sequence. The speed reducer 62 is arranged on a mounting plate 5. There are also two groups of transition bearing assemblies on the mounting plate 5. Each group of transition bearing assemblies includes two coaxially arranged transition bearings 64 and are respectively arranged on the front and back of the mounting plate 5. The transition bearings 64 on the front are connected to the driving bearing 63 through a transition belt 65. There are multiple guiding and guiding mechanisms 1 and they are installed on the front of the mounting plate 5. Both the first roller 11 and the second roller 12 are coaxially provided with transmission bearings 66. The transmission bearings 66 are arranged on the back of the mounting plate 5. The transition bearings 64 on the back are provided with transmission belts 67. The transmission belts 67 are alternately wound around the transmission bearings 66 up and down. During operation, the servo motor 61 drives the driving bearing 63 to rotate after decelerating and increasing torque through the speed reducer 62. The driving bearing 63 drives the two transition bearings 64 on the front to rotate by using the transition belt 65. The transition bearings 64 on the back rotate synchronously with the transition bearings 64 on the front. The two transition bearings 64 on the back respectively drive the upper and lower rows of transmission bearings 66 to rotate through the transmission belts 67, and the rotation directions of adjacent two transmission bearings 66 are opposite. The transmission bearings 66 drive the first roller 11 and the second roller 12 on the front to rotate synchronously, so as to tighten and guide multiple columns of strip packages. The structure is reasonable and effective. The use of the servo motor 61 is convenient for accurately controlling the conveying distance and frequent start and stop of the strip package.

[0039] Furthermore, in this embodiment, a transition belt tensioning member 68 is provided in the area of the mounting plate 5 inside the transition belt 65. That is, the transition belt tensioning member 68 is surrounded by the transition belt 65 inside, with a compact structure and no additional space occupied on the mounting plate 5. Using the transition belt tensioning member 68 to keep the transition belt 65 in a tensioned state is beneficial to ensuring reliable transmission. Preferably, the transition belt tensioning member 68 is a screw, and the screw abuts against the mounting seat of the driving bearing 63. The mounting seat of the driving bearing 63 is mounted on the mounting plate 5 through a horizontal waist-shaped hole and a threaded fastener. After loosening the threaded fastener of the mounting seat, the screw can conveniently adjust the position of the mounting seat, and thus keep the transition belt 65 in a tensioned state, with a simple structure and convenient adjustment.

[0040] For specific reference Figure 3 , furthermore, in this embodiment, reinforcing ribs 51 are provided on both the upper and lower parts of the back surface of the mounting plate 5. The mounting plate 5 is the mounting foundation for components such as each traction guiding mechanism 1 and the driving mechanism 6. By providing the reinforcing ribs 51 on the upper and lower parts of the back surface of the mounting plate 5, the rigidity of the mounting plate 5 itself can be improved, deformation can be avoided, reliable installation of each component can be ensured, and at the same time, the size of the mounting plate 5 can be reduced, thereby reducing the occupied space, with a simple and effective structure.

[0041] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A strip packing machine, comprising a filling mechanism (100), a longitudinal sealing mechanism (200), a transverse sealing mechanism (300) and a cutter discharge mechanism (400) arranged in sequence from top to bottom, characterized in that: A traction guide mechanism (1) is provided between the transverse sealing mechanism (300) and the cutter discharge mechanism (400), the traction guide mechanism (1) comprising at least two groups of traction rollers arranged in an up-and-down direction, each group of traction rollers comprising a first roller (11) and a second roller (12) rotating in opposite directions, a guide channel (13) being formed between the first roller (11) and the second roller (12).

2. The stick packing machine according to claim 1, characterized in that: V-shaped grooves (14) are provided on the circumferential surfaces of the first roller (11) and the second roller (12).

3. The stick packing machine according to claim 2, characterized in that: The surface of the V-shaped groove (14) is provided with a rubber coating layer for increasing friction.

4. The bagging machine according to claim 1, characterized in that: A U-shaped limiting member (2) is provided between the two groups of traction rollers, and the opening of the U-shaped limiting member (2) faces the guide channel (13).

5. The strip packing machine according to claim 4, characterized in that: A guiding inclined surface (3) is provided on the upper side of the U-shaped limiting member (2).

6. The stick packing machine according to claim 1, characterized in that: The distance between the first roller (11) and the second roller (12) is adjustable.

7. The stick packing machine according to claim 6, characterized in that: It also comprises a scale (4) for measuring the distance between the first roller (11) and the second roller (12).

8. The stick packing machine according to any one of claims 1 to 7, characterized in that: The invention also comprises a driving mechanism (6), wherein the driving mechanism (6) comprises a servo motor (61), a speed reducer (62) and an active bearing (63) connected in sequence, wherein the speed reducer (62) is arranged on a mounting plate (5), and the mounting plate (5) is also provided with a plurality of transition bearing assemblies, each of which comprises two coaxially arranged transition bearings (64) and is respectively arranged on the front and back sides of the mounting plate (5), and each of the transition bearings (64) on the front side is connected to the active bearing (63) through a transition belt (65), and the traction guide mechanism (1) is provided with a plurality of transmission bearings (66) and is installed on the front side of the mounting plate (5), and the first roller (11) and the second roller (12) are both coaxially provided with transmission bearings (66), and the transmission bearings (66) are arranged on the back side of the mounting plate (5), and the transition bearings (64) on the back side are provided with transmission belts (67), and the transmission belts (67) are alternately wound around each of the transmission bearings (66) up and down.

9. The stick packing machine according to claim 8, characterized in that: The mounting plate (5) is provided with a transition zone tensioning component (68) in the area inside the transition zone (65).

10. The stick packing machine according to claim 8, characterized in that: The upper and lower parts of the back side of the mounting plate (5) are both provided with reinforcing ribs (51).

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