A linear filling device

Abstract

The present invention relates to the field of packaging machinery, and specifically to a linear filling device. It includes a conveying mechanism, which includes two sets of sprockets and chains arranged on the corresponding sprockets. The chain includes chain plates, and a number of templates are arranged side by side on the chain. Two clamps of different specifications are provided on both sides of the templates. Two templates are installed on the same chain plate. The clamps of the two templates on the opposite sides of the same chain plate have the same specifications. The area between the two clamps forms a clamping area. It also includes a replacement mechanism. The template is clamped by a clamping component and performs linear motion in the horizontal and vertical directions under the drive of a displacement component. The template is transported by a transport component and thus changes its position on the chain or between a temporary storage component and the chain. The present invention uses a template to adapt to the clamping of two different bottle types. It only needs to change the position of the template, and a corresponding replacement mechanism is designed to improve the automation of template replacement.

Description

Technical Field

[0001] The present invention relates to the field of packaging machinery, in particular to a linear filling device. Background Art

[0002] In linear filling technology, containers are conveyed along a defined conveying area, passing through the filling area and the capping and sealing area. During this process, the conveying device within the linear filling machine is responsible for conveying the containers. In conventional technology, the conveying device comprises a chain mounted on two sets of sprockets and extending to form a chain with arc-shaped ends and a straight center. The chain comprises chain plates, each of which is spaced apart and equipped with two stoppers. The stoppers located at the same position between the two chains are positioned relative to each other, ensuring that a set of stoppers are aligned perpendicular to the direction of chain rotation. These stoppers constitute the chain's stopper. In addition to the chain, the conveying device also includes templates that work with the chain. Two templates are placed on the same stopper and are equipped with clamps. The clamps on the templates face each other and can be used to clamp a container. A stopper hole is located at each end of the template. The templates are connected by stoppers inserted into the stopper holes, thereby limiting the movement of the templates relative to the chain in the direction of movement, keeping the templates stationary relative to the chain in that direction. For example, the Chinese patent authorization publication number CN204606344U, with the authorization announcement date of September 2, 2015, discloses a template that is not easy to bend and can withstand greater weight. The template is designed based on this linear filling technology.

[0003] In existing technology, the same template is only suitable for clamping and conveying one type of container. This is because once the template is connected to the chain, the distance between the templates is fixed, which limits the size of the template opening at the clamping mouth. In actual operation, changing bottle types requires replacing and obtaining the corresponding template. The large number of templates on the conveyor system makes the labor and material costs of template replacement extremely high. Summary of the Invention

[0004] In response to the above-mentioned defects of the existing linear filling technology, the present invention provides a linear filling device that can achieve the following technical effects: using one template to adapt to the clamping of two different bottle types, only the position of the template needs to be changed, and a corresponding replacement mechanism is designed to improve the automation of template replacement.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a linear filling device, comprising a conveying mechanism, the conveying mechanism comprising two sets of sprockets and chains arranged on the corresponding sprockets, the ends of the chain being arc-shaped and the middle being straight after being unfolded, the chain comprising chain plates, a plurality of templates being arranged side by side on the chain, the ends of the templates being provided with limiting holes, the chain plates being provided with limiting posts, the ends of the templates being detachably mounted on the chain plates through the cooperation of the limiting holes and the limiting posts, two clamps of two different specifications being provided on both sides of the templates, two templates being installed on the same chain plate, the clamps of the two templates on opposite sides of the same chain plate being of the same specifications, and the area between the two clamps forming a clamping area; and a replacement mechanism being further provided, the replacement mechanism being arranged at the arc portion of the chain, the replacement mechanism comprising a transport component and a temporary storage component, the transport component comprising a clamping assembly and a displacement assembly, the template being clamped by the clamping assembly and being driven by the displacement assembly to perform linear motion in the horizontal and vertical directions, the template being transported by the transport component to perform position replacement on the chain or between the temporary storage component and the chain.

[0006] In this technical solution, clamps suitable for two types of bottles are set on the same template. The specifications of the two clamps are different and are arranged on the long sides of both sides of the template. The template is quickly installed on the chain through the cooperation of the limiting holes and the limiting columns. The templates are installed on the chain plate in groups of two. The inner clamps of the same specifications on the two templates are arranged relative to each other. The area between the clamps is the clamping area, and the area between the outer clamp of the template and the outer clamp of the template on another chain plate is the non-clamping area. When changing bottle types, only the template's position needs to be adjusted. Since the clamping areas are spaced apart on the chain, switching from clamping one bottle type to clamping another requires swapping the templates on either side of the same clamping area, swapping the templates on either side of the same non-clamping area, or replacing all templates along a single direction along the chain. Template handling is accomplished by both the clamping and displacement components. The handling component first moves the template to the temporary storage component, leaving the free space on the chain for another template. Finally, the template from the temporary storage component is moved back onto the chain, enabling switching between different sizes of clamps in the clamping area and making template switching more automated. Furthermore, the clamping area only exists between two templates on the same chain, not between adjacent templates on adjacent chains. Two templates on the same chain are not affected by the relative motion of adjacent chains (particularly the motion between adjacent chains when the chain transitions from a straight state to a curved state), as this motion would cause the adjacent templates to swing relative to each other, thus losing the optimal spatial position for clamping the bottle.

[0007] Specifically, the clamping assembly includes a carrier and clamping claws mounted at both ends of the carrier. The two clamping claws are distributed at both ends of the template. The ends of the template contract along the width direction to form a convex structure, and the clamping claws clamp at the contracted portion of the template end. The carrier is provided with a pressure rod, which is elastically mounted on the carrier via an elastic member. The lower end of the pressure rod has a recess, and the template has a protrusion at the limiting hole. The recess is located above the protrusion. When the clamping assembly is lowered, the lower end of the pressure rod presses against the protrusion, and the protrusion is embedded in the recess. The temporary storage component includes a placement table distributed at both ends of the template. The placement table is provided with a positioning column. When the template is transported to the placement table, the positioning column is inserted into the limiting hole.

[0008] Specifically, the displacement assembly includes a lifting assembly and a translation assembly. The lifting assembly includes a mounting seat, a lifting motor, and a synchronous belt I. The lifting motor and the synchronous belt I are both installed on the mounting seat. The synchronous belt I is extended in the vertical direction. The carrier is connected to the synchronous belt I. The synchronous belt I is driven by the lifting motor to drive the carrier to perform linear reciprocating motion in the vertical direction; the translation assembly includes a fixed seat, a translation motor, and a synchronous belt II. The translation motor and the synchronous belt II are installed on the fixed seat. The mounting seat is connected to the synchronous belt II. The synchronous belt II is extended in the horizontal direction. The synchronous belt II is driven by the translation motor to drive the mounting seat to perform linear reciprocating motion in the horizontal direction.

[0009] In order to further increase the stability of the object carrier in the vertical movement, a guide rod arranged in the vertical direction is provided on the mounting seat, and the object carrier is slidably arranged on the guide rod through a sliding sleeve.

[0010] Similarly, in order to increase the stability of the carrier in the horizontal direction, a slide rail arranged in the horizontal direction is provided on the fixed seat, and the mounting seat is slidably arranged on the slide rail through a slider.

[0011] The advantages of the present invention are: 1) clamps suitable for two types of bottles are provided on the same template, and the specifications of the two clamps are different, and they are respectively arranged on the long sides of both sides of the template. When the templates are installed on the chain plate, they are grouped in two, and the inner clamps of the same specifications on the two templates are arranged relative to each other. The area between the clamps is the clamping area. Only by adjusting the position of the template, the working state of clamping one type of bottle can be changed to the working state of clamping another type of bottle; the clamping area will only exist between two templates on the same chain plate, and will not exist between two adjacent templates on two adjacent chain plates. The two templates on the same chain plate will not be affected by the relative movement of the adjacent chain plates (especially the movement between the adjacent chain plates when the chain changes from a straight state to a bent state). Because this movement will cause the adjacent templates to swing relative to each other, the optimal spatial posture for clamping the bottle will be lost. 2) The template switching action requires swapping the templates on both sides of the same clamping area, or swapping the templates on both sides of the same non-clamping area, or replacing all templates in a single direction along the chain. The template transportation is completed by the clamping component and the displacement component. The transportation component first moves the template to the temporary storage component and places it. At this time, the empty space on the chain can be used to place other templates. Finally, the template on the temporary storage component is moved to the chain to realize the switching of clamps of different specifications in the clamping area, making the template switching more automated. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the linear filling device in the present invention;

[0013] Figure 2 It is a structural schematic diagram of the template in the present invention;

[0014] Figure 3 This is a structural schematic diagram of the linear filling device of the present invention from another perspective;

[0015] Figure 4 Schematic diagram of the structure of the template on the chain in the present invention;

[0016] Figure 5 It is a schematic diagram of the local structure of the replacement mechanism in the present invention;

[0017] Figure 6 This is a structural diagram of the replacement mechanism of the present invention from another perspective;

[0018] Figure 7 This is a schematic diagram of the structure when the template is replaced in the present invention;

[0019] Figure 8 This is a structural diagram of the replacement mechanism of the present invention from another perspective;

[0020] Figure 9 It is a structural schematic diagram of the transport component in the present invention.

[0021] Figure markings: chain plate 100, limiting column 101, template 200, limiting hole 201, clamp 202, protrusion 203, transport component 300, carrier 301, clamp 302, pressure rod 303, mounting seat 400, lifting motor 401, synchronous belt I 402, guide rod 403, sliding sleeve 404, fixed seat 500, translation motor 501, synchronous belt II 502, slide rail 503, slider 504, placement table 600, positioning column 601. DETAILED DESCRIPTION

[0022] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, these terms should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Embodiments of the present invention:

[0025] A linear filling device comprises a conveying mechanism and a replacing mechanism.

[0026] The conveying mechanism includes two sets of sprockets and chains arranged on the corresponding sprockets. When the chain is unfolded, the two ends are arc-shaped and the middle is straight. Figures 1 to 4 As shown in , the chain includes a chain plate 100 section by section, and a number of templates 200 are arranged side by side on the chain. When the chain is running, the template 200 is driven to be transported in a straight line. The template 200 is perpendicular to the conveying direction of the chain. Limiting holes 201 are provided at both ends of the template 200, and a limiting column 101 is provided on the chain plate 100. The template 200 can be detachably installed on the chain plate 100 through the cooperation of the limiting holes 201 and the limiting column 101. Two different specifications of clamps 202 are provided on both sides of the template 200. Two templates 200 are installed on the same section of the chain plate 100. The specifications of the clamps 202 on the opposite sides of the two templates 200 on the same section of the chain plate 100 are the same. The area between the two clamps 202 forms a clamping area, which is illustrated by A. The clamps 202 of adjacent templates 200 on different chain plates 100 are non-clamping areas, which are illustrated by B.

[0027] In this embodiment, clamps 202 suitable for two types of bottles are provided on the same template 200. The specifications of the two clamps 202 are different, for example, one is large and the other is small. In actual application, they will be adaptively changed according to the outer contour of the clamped object. This is a conventional selective operation. The two clamps 202 are respectively arranged on the long sides on both sides of the template 200. When the templates 200 are installed on the chain plate 100, they are grouped in two. The inner clamps 202 of the same specifications on the two templates 200 are arranged relative to each other. The area between the clamps 202 is the clamping area, and the area between the outer clamp 202 of the template 200 and the outer clamp 202 of the template 200 on another chain plate 100 is the non-clamping area. The clamping area will only exist between two templates 200 on the same chain plate 100, and will not exist between two adjacent templates 200 on two adjacent chain plates 100. The two templates 200 on the same chain plate 100 will not be affected by the relative movement of the adjacent chain plates 100 (especially the movement between adjacent chain plates 100 when the chain changes from a straight state to a curved state). This movement will cause the adjacent templates 200 to swing relative to each other, thereby losing the optimal spatial posture for clamping the bottle.

[0028] like Figures 5 to 9 As shown in , the replacement mechanism includes a transport component 300 and a temporary storage component. The replacement mechanism is arranged at the arc portion of the chain to avoid interference with the linear conveying area of ​​the chain.

[0029] The transport component 300 includes a clamping assembly, a lifting assembly, and a translation assembly. The clamping assembly is used to clamp the template 200, and the lifting assembly and the translation assembly provide the template 200 with translation capabilities in the vertical direction and horizontal direction respectively.

[0030] The clamping assembly includes a carrier 301 and clamping jaws 302 installed at both ends of the carrier 301. The two clamping jaws 302 are distributed at both ends of the template 200. In the initial state, the clamping jaws 302 are in an open state, and the end of the template 200 shrinks along the width direction to form a convex structure. The clamping jaws 302 are clamped at the contracted part of the end of the template 200. The end shape of the convex structure facilitates the clamping jaws 302 to clamp the template 200. At the same time, the two clamping jaws 302 clamp the two ends of the template 200 respectively, which can ensure the stability of the template 200 during transportation. A pressure rod 303 is provided on the carrier 301, and the pressure rod 303 is elastically set on the carrier 301 through an elastic part. The lower end of the pressure rod 303 has a recess, and the template 200 has a protrusion 203 at the limiting hole 201. The recess is located above the protrusion 203. When the clamp 302 descends, the lower end of the pressure rod 303 presses against the protrusion 203, and the protrusion 203 is embedded in the recess, which plays a positioning role, so that the clamp 302 can accurately clamp the template 200.

[0031] The lifting assembly includes a mounting base 400, a lifting motor 401, and a timing belt I 402. Both the lifting motor 401 and the timing belt I 402 are mounted on the mounting base 400. The timing belt I 402 extends vertically, connecting the carrier 301 to the timing belt I 402. The timing belt I 402 is driven by the lifting motor 401, thereby causing the carrier 301 to perform linear reciprocating motion in the vertical direction. To further enhance the stability of the carrier 301's vertical motion, a guide rod 403 is provided on the mounting base 400. The carrier 301 slides on the guide rod 403 via a sliding sleeve 404.

[0032] The translation assembly includes a fixed base 500, a translation motor 501, and a synchronous belt II 502. The translation motor 501 and synchronous belt II 502 are mounted on the fixed base 500. The mounting base 400 is connected to the synchronous belt II 502, which extends horizontally. Driven by the translation motor 501, the synchronous belt II 502 drives the mounting base 400 in linear reciprocating motion in the horizontal direction. To further enhance the stability of the horizontal movement of the carrier 301, a horizontally arranged slide rail 503 is provided on the fixed base 500. The mounting base 400 slides on the slide rail 503 via a slider 504.

[0033] The temporary storage components are distributed at both ends of the template 200, one at each end, and each end is provided with a placement table 600, and the placement table 600 is provided with a positioning column 601. When the transporting component 300 transports the template 200 to the placement table 600, the positioning column 601 is inserted into the limiting hole 201 to limit the template 200.

[0034] When the bottle type is changed, the template 200 also needs to be adjusted accordingly. Since the clamping areas are spaced apart on the chain, it is necessary to change from a working state of clamping one bottle type to a working state of clamping another bottle type, such as Figure 4 As shown by the arrows, it is necessary to swap the templates 200 on both sides of the same clamping area, or swap the templates 200 on both sides of the same non-clamping area, or replace all the templates 200 along a single direction of the chain. In order to realize the automation of the template 200 switching and improve the automation level of the entire equipment, a replacement mechanism is designed to complete the switching of the template 200, such as Figure 7As shown by the middle arrow, the transport component 300 first moves the template 200 to the temporary storage component and places it. At this time, the empty space on the chain can be used to place other templates 200. Finally, the template 200 on the temporary storage component is transported to the chain to realize the switching of the clamps 202 of different specifications in the clamping area. During actual operation, the clamping claws 302 run to the two ends of a template 200, and the pressure rod 303 presses the cylindrical protrusion 203 of the template 200 at the limit hole 201. The protrusion 203 is embedded in the recess at the end of the pressure rod 303 for positioning. Then the clamping claws 302 retract and clamp the template 200, and transport the template 200 to the temporary storage component. Next, the template 200 on the chain is moved forward one grid at a time (the chain will make a matching stepping motion during this process), and finally the template 200 on the temporary storage component is moved to the chain, thereby completing the replacement.

[0035] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A linear filling device, comprising a conveying mechanism, comprising two sets of sprockets and chains mounted on the corresponding sprockets. When the chain is unfolded, the ends of the chain are arc-shaped and the middle is straight. The chain comprises chain plates. A plurality of templates are arranged side by side on the chain. The ends of the templates are provided with limiting holes, and the chain plates are provided with limiting posts. The ends of the templates are detachably mounted on the chain plates through the cooperation of the limiting holes and the limiting posts. The characteristics are: Two different sizes of clamps are provided on both sides of the template. Two templates are installed on the same section of the chain plate. The clamps on the opposite sides of the two templates on the same section of the chain plate have the same specifications. The area between the two clamps forms a clamping area. The cam is provided with a plurality of movable members, and the movable members are connected to the cam, and the movable members are connected to the movable members. The movable members are connected to the movable members, and the movable members are connected to the movable members. The movable members are connected to the movable members, and the movable members are connected to the movable members. The movable members are connected to the movable members, and the movable members are connected to the movable members. The translation assembly includes a fixed seat, a translation motor, and a synchronous belt II. The translation motor and synchronous belt II are installed on the fixed seat, and the mounting seat is connected to the synchronous belt II. The synchronous belt II is unfolded in the horizontal direction. The synchronous belt II is driven by the translation motor to drive the mounting seat to perform linear reciprocating motion in the horizontal direction. The mounting seat is provided with a guide rod arranged in the vertical direction, and the object carrier is slidably set on the guide rod through a sliding sleeve. The fixed seat is provided with a slide rail arranged in the horizontal direction, and the mounting seat is slidably set on the slide rail through a slider. The object carrier is provided with a pressure rod, which is elastically set on the object carrier through an elastic member. The lower end of the pressure rod has a recess, and the template has a protrusion at the limiting hole. The recess is located above the protrusion. When the clamping assembly descends, the lower end of the pressure rod presses against the protrusion, and the protrusion is embedded in the recess.

2. A linear filling device according to claim 1, characterized in that: The temporary storage component includes a placement platform distributed at both ends of the template, and a positioning column is provided on the placement platform. When the template is transported to the placement platform, the positioning column is inserted into the limiting hole.

3. A linear filling device according to claim 1, characterized in that: The end of the template shrinks along the width direction to form a convex structure, and the clamping component is clamped at the shrinking part of the end of the template.

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