CN113183526B

CN113183526B - Knurling mechanism for cup bottom of paper cup

Info

Publication number: CN113183526B
Application number: CN202110404703.0A
Authority: CN
Inventors: 王建平
Original assignee: Zhejaing Discover Machinery Manufacturing Co ltd
Current assignee: Zhejaing Discover Machinery Manufacturing Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-09-30
Anticipated expiration: 2041-04-15
Also published as: CN113183526A

Abstract

A knurling mechanism for the bottom of a paper cup comprises a base, a transmission assembly, a bearing block, a pressing block, a knurling mechanism and an outer die. The bearing block is provided with a sliding groove. Knurling mechanism includes ejector pin propelling movement subassembly, knurling subassembly to and elastic component. The ejector pin propelling movement subassembly includes ejector pin, propelling movement piece to and dust guard. The knurling assembly comprises a sliding block, a connecting shaft, an inclined bearing and a knurling wheel. The side walls of the pushing block and the inclined bearing are obliquely arranged and are opposite in oblique direction. When the two knurling assemblies rotate along with the bearing block, the two inclined bearings are always attached to the pushing block and roll around the side wall of the pushing block, and the two knurling wheels are driven to move in the same track, so that knurling is pressed out by the knurling wheels, knurling of paper cups in different shapes can be realized by replacing the outer dies and the pushing block in different shapes, compatibility is improved, and cost is reduced. In addition, the pushing block can be replaced by detaching the dust guard plate, so that the whole assembly and disassembly are simple.

Description

Knurling mechanism for cup bottom of paper cup

Technical Field

The invention relates to the technical field of paper cup production devices, in particular to a knurling mechanism for a bottom of a paper cup.

Background

The paper cup is a paper container made by mechanically processing and bonding base paper made of chemical wood pulp, and the appearance of the paper container is cup-shaped. The paper cup has the characteristics of safety, sanitation, lightness and convenience, and is widely applied to places such as public places, restaurants, dining rooms and the like.

The paper cup is formed by bonding a paper cup tube and a cup bottom, the paper cup tube and the cup bottom are bonded more closely, after the cup bottom of the paper cup is heated, the paper cup needs to be folded and knurled, and the sewing position of the cup body and the cup bottom of the paper cup is more closely. Most of the cup bottom knurling mechanisms in the prior art are only suitable for paper cups of one shape and one specification, when the paper cups of different shapes and specifications are required to be knurled, the knurling mechanisms corresponding to the shapes and the specifications are required to be replaced, so that the cost is increased, and the knurling mechanisms in the prior art are complex in structure and multiple in parts, so that the assembly and disassembly are troublesome, and the production efficiency is influenced.

Disclosure of Invention

In view of this, the present invention provides a knurling mechanism for a cup bottom of a paper cup to solve the above technical problems.

A knurling mechanism for the bottom of a paper cup comprises a bearing block and a knurling mechanism arranged on the bearing block. The bearing block is provided with a sliding groove, and the extending direction of the sliding groove is perpendicular to the central shaft of the bearing block and is communicated with the two radial ends of the bearing block. The knurling mechanism comprises an ejector rod pushing assembly arranged in the sliding groove, two knurling assemblies arranged in the sliding groove and two elastic pieces connected with the knurling assemblies. The push rod pushing assembly comprises at least one push rod penetrating through the sliding groove and a pushing block arranged on the push rod. The ejector rod penetrates through the sliding groove and the bearing block, the side wall of the pushing block is arranged in an inclined mode, and the pushing block is located between the two knurling assemblies. Each knurling assembly comprises a sliding block arranged in the sliding groove in a sliding mode, a connecting shaft arranged on the sliding block, an inclined bearing arranged on the connecting shaft in a rotating mode, and a knurling wheel arranged at one end of the connecting shaft in a rotating mode. The two sliding blocks are positioned on two sides of the ejector rod. The inclined bearings are located between the sliding block and the knurling wheel, and the two inclined bearings are clamped on two sides of the pushing block. The side wall of the inclined bearing is opposite to the inclined direction of the side wall of the pushing block, and the side wall of the inclined bearing is attached to the side wall of the pushing block. The elastic piece is located in the sliding groove, and two ends of the elastic piece are connected with the two sliding blocks respectively. When the bearing block rotates, the inclined bearing rolls around and clings to the side wall of the pushing block, and meanwhile, the movement track of the central shaft of the inclined bearing is the same as that of the knurling wheel, so that the same knurling track is formed on the edge of the bottom of the paper cup.

Furthermore, the paper cup bottom knurling mechanism also comprises a base, a transmission assembly arranged on the base, two pressing blocks arranged on the bearing block, and an outer die used for being matched with the knurling assembly.

Further, the transmission assembly comprises a cylinder rotatably arranged on the base, a first gear fixedly arranged on the outer side wall of the cylinder, and a second gear meshed with the first gear.

Furthermore, a through hole is formed in the center of the outer die, and the shape of the through hole is the same as that of the cross section of the pushing block.

Furthermore, an included angle between the extending direction of the side wall of the pushing block and the central axis of the pushing block is an acute angle.

Further, the bearing block is arranged on the cylinder body and rotates together with the cylinder body.

Furthermore, the ejector rod pushing assembly further comprises a dust guard plate arranged at one end of the ejector rod.

Further, the plane of the knurling wheel is coincident with the plane of the outer die.

Compared with the prior art, the paper cup bottom knurling mechanism provided by the invention has the advantages that the two knurling assemblies are connected through the two elastic members, so that the two knurling assemblies are tightly attached to the ejector rod pushing assembly and are knurled, and particularly. The inclined bearing and the side wall of the pushing block are obliquely arranged and have opposite oblique directions, and the side wall of the inclined bearing is attached to the side wall of the pushing block. When the propelling movement piece rises, the propelling movement piece will push away two the angular bearing to with two the knurling subassembly is to keeping away from the direction of the center pin of propelling movement piece removes, consequently can be through adjusting the height that the propelling movement piece rises, in order to control two distance between the knurling wheel to the paper cup of different specifications can be knurled, improve the compatibility. When the transmission assembly drives the two knurling assemblies to rotate, the two inclined bearings are always tightly attached to the pushing block and roll around the side wall of the pushing block, and the two knurling wheels are driven to move in the same track. Meanwhile, the cross section of the pushing block is the same as that of the through hole, so that the knurling wheel can roll along the through hole to form knurls at the bottom of the paper cup, and the knurls of the paper cups in different shapes can be realized by replacing the outer die and the pushing block in different shapes, the compatibility is further improved, and the cost is reduced. In addition, the pushing block can be replaced as long as the dust guard is detached, so that the whole installation and detachment are simple.

Drawings

Fig. 1 is a schematic structural diagram of a knurling mechanism for a cup bottom of a paper cup provided by the invention.

Fig. 2 is a schematic structural view of the outer mold removing mechanism of the cup bottom knurling mechanism of the paper cup in fig. 1.

Fig. 3 is a top view of the cup bottom knurling mechanism of the paper cup of fig. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to 3, which are schematic structural views of a knurling mechanism for a cup bottom of a paper cup provided by the present invention. The knurling mechanism for the bottom of the paper cup comprises a base 10, a transmission assembly 20 arranged on the base 10, a bearing block 30 arranged on the transmission assembly 20, two pressing blocks 40 arranged on the bearing block 30, a knurling mechanism 50 arranged on the bearing block 30 and an outer die 60 matched with the knurling mechanism 50. It is contemplated that the cup bottom knurling mechanism may further include other functional modules, such as assembly components, mounting components, electrical connection components, etc., which are well known to those skilled in the art and will not be described herein.

The base 10 is disposed on a machine (not shown) and is used for carrying the above-mentioned various functional components, i.e., the transmission component 20, the sliding component 30, and the knurling component 40. It will be understood that the structure and shape of the base 10 should be adapted to assemble the various functional components described above and will not be described in detail herein.

The transmission assembly 20 includes a cylinder 21 rotatably disposed on the base 10, a first gear 22 fixedly disposed on an outer sidewall of the cylinder 21, and a second gear 23 engaged with the first gear 22.

The cylinder 21 is used for arranging the first gear 22 and the sliding assembly 30 and driving the sliding assembly 30 to rotate. The first gear 22 and the second gear 23 are engaged with each other, and the second gear 23 is sleeved on an external driving motor (not shown), so that the external driving motor drives the second gear 23 to rotate, thereby driving the first gear 22 and the cylinder 21 to rotate.

The bearing block 30 is disposed on the cylinder 21 and rotates together with the cylinder 21. The bearing block 30 is provided with a sliding groove 31, an extending direction of the sliding groove 31 is perpendicular to a central axis of the bearing block 30 and is communicated with two radial ends of the bearing block 31, the sliding groove 31 is used for arranging the knurling mechanism 50, and the knurling mechanism 50 can slide in the sliding groove 31, and the specific description will be described below with reference to the knurling mechanism 50.

Two pressing blocks 40 are arranged on the bearing block 30 and press the knurling mechanism 50. The two pressing blocks 40 are respectively located at two sides of the sliding chute 31, so that a groove-shaped structure is formed at two sides of the sliding chute 31, and the position of the knurling mechanism 50 is limited, so that the knurling mechanism 50 can only slide along the extending direction of the sliding chute 31, and cannot move along the axial direction of the bearing block 30.

The knurling mechanism 50 comprises a push rod pushing assembly 51 arranged in the sliding groove 31, two knurling assemblies 52 arranged in the sliding groove 31 in a sliding mode, and two elastic members 53 connecting the two knurling assemblies 52.

The push rod pushing assembly 51 comprises at least one push rod 511 penetrating the sliding groove 31, a pushing block 512 arranged on the push rod 52, and a dust-proof plate 513 arranged at one end of the push rod 511.

The top rod 511 passes through the sliding groove 31, the bearing block 30, the cylinder 20 and the base 10, and is connected with an external driving device, so that the top rod 511 is driven by the external driving device to move back and forth along the axial direction of the top rod 511, and the top rod 511 cannot rotate along with the cylinder 21. The shape of the axial cross section of the pushing block 512 is the same as the shape of the through hole of the outer die 60, and in this embodiment, the cross section of the pushing block 512 is a rounded rectangle, which can be set according to the shape of the paper container. The side wall of the pushing block 512 is obliquely arranged, that is, an included angle between the extending direction of the side wall of the pushing block 512 and the central axis of the pushing block 512 is an acute angle. The pushing block 512 is located between the two knurl assemblies 52, and the pushing block 512 is fixedly disposed on the top bar 511 and driven by the top bar 511 to reciprocate along the axial direction thereof, so as to push the knurl assemblies 52, so that the two knurl assemblies 52 slide in the sliding groove 31, which will be described in detail below with reference to the knurl assemblies 52. The dust-proof plate 513 is fixedly arranged at one end of the top rod 511. When carrying out the rotation knurling, the bottom of paper cup can produce more dust, dust guard 513 can play dirt-proof effect, prevents that the dust from adhering to on the device promptly to improve the life of whole mechanism.

Each knurling assembly 52 comprises a sliding block 521 slidably arranged in the sliding slot 31, a connecting shaft 522 arranged on the sliding block 521, an inclined bearing 523 rotatably arranged on the connecting shaft 522, and a knurling wheel 524 rotatably arranged at one end of the connecting shaft 522.

The two sliding blocks 521 are both located in the sliding groove 31, and the two sliding blocks 521 are connected through the elastic member 53, so that the two knurling assemblies 52 are clamped on both sides of the push rod pushing assembly 51, and the two inclined bearings 523 are always tightly attached to the pushing block 512. Since the sliding block 521 is disposed in the sliding slot 31, when the bearing block 30 rotates, the sliding block 521 rotates together with the bearing block 30.

The central axis of the connecting shaft 522 is perpendicular to the plane of the slider 521, and is used for arranging the inclined bearing 523 and the knurling wheel 524.

The inclined bearing 523 is located between the slider 521 and the knurling wheel 524, and the inclined direction of the side wall of the inclined bearing 523 is opposite to the inclined direction of the side wall of the pushing block 512. Meanwhile, the side wall of the inclined bearing 523 is attached to the side wall of the pushing block 512. When the push rod 511 drives the push block 512 to move towards the direction of the dust-proof plate 513, the push block 512 pushes the two inclined bearings 523 open, so that the two knurled assemblies 52 slide towards the direction away from the central axis of the push block 512 until the knurled wheel 524 is attached to the outer die 60, and the bottom of the paper container is clamped between the knurled wheel 524 and the outer die 60. Because the two knurled assemblies 52 are connected through the elastic member 53, the two inclined bearings 523 are always tightly attached to the side wall of the pushing block 512 under the elastic force recovery action of the elastic member 53, and therefore when the two knurled assemblies 52 rotate along with the bearing block 30, the two inclined bearings 523 always rotate around the pushing block 512, so that the two knurled wheels 524 move along the same track. Meanwhile, as the inclined bearings 523 are rotatably arranged, when the two inclined bearings 523 rotate around the pushing block 512, the side walls of the inclined bearings 523 and the pushing block 512, which are attached to each other, are not in sliding friction, but the inclined bearings 523 roll around the side walls of the pushing block 512, that is, rolling friction is performed, so that the movement is smoother, and the abrasion of the inclined bearings 523 and the pushing block 512 is smaller, so as to improve the service life.

The outer side wall of the knurling wheel 524 is provided with grains, and the plane of the grains is coincident with the plane of the outer die 60. The knurling wheel 524 is used for clamping the bottom of the paper cup with the outer die 60 and knurling the bottom. When the knurling wheel 524 rolls along the edge of the bottom of the paper cup, the lines on the knurling wheel 521 press knurling on the edge of the bottom of the paper cup to form knurling.

The elastic member 53 is located between the two sliding blocks 521, and two ends of the elastic member 53 are respectively connected to the two sliding blocks 521, so that the two inclined bearings 523 are tightly attached to the pushing block 512 by the elastic force recovery action of the elastic member 53. The elastic member 53 is a spring.

The outer mold 60 is fixedly disposed with an external machine (not shown), and a through hole 61 is disposed at a center of the outer mold 60. The shape of the through hole 61 is the same as that of the cross section of the pushing block 512, and the through hole is in a round corner rectangle shape. The through hole 61 is used for clamping a paper cup with the knurling wheel 524.

When in use, the paper cup is moved to the outer die 60 by an external moving mechanism, so that the outer side wall of the bottom of the paper cup is inserted into and attached to the side wall of the through hole 61. The pushing block 512 is driven by the top rod 511 to move towards the dust-proof plate 513, so that the pushing block 512 pushes the two inclined bearings 523 open, and then the two knurled assemblies 52 move towards the direction far away from the central axis of the pushing block 512 until the knurled wheel 524 is attached to the bottom of a paper cup, so that the bottom of the paper cup is clamped between the knurled wheel 524 and the side wall of the through hole 61. The two knurl assemblies 52 are driven to rotate through the transmission assembly 20, so that the two knurl assemblies 52 rotate on the bearing block 30. Because the two knurl assemblies 52 are abutted by the pushing block 512 and connected through the elastic member 53, when the two knurl assemblies 52 rotate along with the bearing block 30, the two inclined bearings 523 always cling to the pushing block 512 and roll around the side wall thereof, and drive the two knurl wheels 524 to move in the same track. Meanwhile, the cross section of the pushing block 512 has the same shape as that of the through hole 61, so that the knurling wheel 524 can roll along the side wall of the through hole 61 to emboss knurling on the bottom of the paper cup.

Compared with the prior art, the knurling mechanism for the cup bottom of the paper cup provided by the invention has the advantages that the two knurling assemblies 52 are connected through the two elastic members 53, so that the two knurling assemblies 52 are tightly attached to the ejector rod pushing assembly 51 and are knurled, specifically. The inclined bearing 523 and the side wall of the pushing block 512 are obliquely arranged and have opposite oblique directions, and the side wall of the inclined bearing 523 is attached to the side wall of the pushing block 512. When the pushing block 512 rises, the pushing block 512 pushes the two inclined bearings 523 open, and moves the two knurling components 52 in the direction away from the central axis of the pushing block 512, so that the distance between the two knurling wheels 524 can be controlled by adjusting the rising height of the pushing block 512, paper cups with different specifications can be knurled, and compatibility is improved. When the transmission assembly 20 drives the two knurling assemblies 52 to rotate, the two inclined bearings 523 always cling to the pushing block 512 and roll around the side wall thereof, and drive the two knurling wheels 634 to move in the same track. Meanwhile, the cross section of the pushing block 512 is the same as that of the through hole 61, so that the knurling wheel 524 can roll along the through hole 61 to form knurls at the bottom of the paper cup, and therefore, the outer die 60 and the pushing block 512 in different shapes are replaced, the knurls of the paper cup in different shapes can be realized, the compatibility is further improved, and the cost is reduced. In addition, the pushing block 512 can be replaced by only detaching the dust-proof plate 513, so that the whole installation and detachment are simple.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.

Claims

1. The utility model provides a paper cup bottom of cup annular knurl mechanism which characterized in that: the knurling mechanism at the bottom of the paper cup comprises a bearing block and a knurling mechanism arranged on the bearing block, wherein a sliding groove is formed in the bearing block, the extending direction of the sliding groove is perpendicular to the central shaft of the bearing block and is communicated with the two radial ends of the bearing block, the knurling mechanism comprises an ejector rod pushing assembly arranged in the sliding groove, two knurling assemblies arranged in the sliding groove and two elastic members connected with the two knurling assemblies, the ejector rod pushing assembly comprises at least one ejector rod penetrating the sliding groove and a pushing block arranged on the ejector rod, the ejector rod penetrates the sliding groove and the bearing block, the side wall of the pushing block is obliquely arranged, the pushing block is positioned between the two knurling assemblies, and each knurling assembly comprises a sliding block arranged in the sliding groove in a sliding manner, a connecting shaft arranged on the sliding block, an inclined bearing rotatably arranged on the connecting shaft, and a knurling wheel rotatably arranged at one end of the connecting shaft, the two slide blocks are positioned at two sides of the mandril, the inclined bearings are positioned between the sliding block and the knurling wheel, and the two inclined bearings are clamped at two sides of the pushing block, the side wall of the inclined bearing is opposite to the side wall of the pushing block in the inclined direction, the side wall of the inclined bearing is attached to the side wall of the pushing block, the elastic piece is positioned in the sliding groove, two ends of the elastic piece are respectively connected with the two sliding blocks, when the bearing block rotates, the inclined bearing rolls around and clings to the side wall of the pushing block, meanwhile, the movement track of the central shaft of the inclined bearing is the same as that of the knurling wheel, so that the same knurling track is formed on the edge of the bottom of the paper cup.

2. The cup bottom knurling mechanism of claim 1, wherein: the paper cup bottom knurling mechanism further comprises a base, a transmission assembly arranged on the base, two pressing blocks arranged on the bearing block, and an outer die used for being matched with the knurling assembly.

3. The cup bottom knurling mechanism of claim 2, wherein: the transmission assembly comprises a barrel which is rotatably arranged on the base, a first gear which is fixedly arranged on the outer side wall of the barrel, and a second gear which is meshed with the first gear.

4. The cup bottom knurling mechanism of claim 2, wherein: the center of the outer die is provided with a through hole, and the shape of the through hole is the same as that of the cross section of the pushing block.

5. The cup bottom knurling mechanism of claim 1, wherein: the extending direction of the side wall of the pushing block and the central axis of the pushing block form an acute angle.

6. The cup bottom knurling mechanism of claim 3, wherein: the bearing block is arranged on the cylinder body and rotates along with the cylinder body.

7. The cup bottom knurling mechanism of claim 1, wherein: the push component of the push rod further comprises a dust guard plate arranged at one end of the push rod.

8. The cup bottom knurling mechanism of claim 2, wherein: the plane of the knurling wheel is superposed with the plane of the outer die.