Small paper rivet riveting device and using method thereof

Abstract

The invention provides a small paper rivet riveting device and a using method thereof.The riveting device comprises a rivet feeding mechanism and a riveting mechanism, the rivet feeding mechanism comprises a material frame, a rotating shaft is arranged in the material frame, the rotating shaft is sleeved with a rivet roll, and the rivet roll comprises a rolled paper conveying belt; detachable paper rivets are fixed to the paper conveying belt at intervals, a rivet positioning groove is formed in the riveting mechanism, rotating gears are arranged at the two ends of the rivet positioning groove, the gears drive the paper conveying belt to conduct transmission, and a vertically-lifting feeding plate is arranged above the rivet positioning groove. Through the arrangement of the rivet roll, screening equipment for rivet orientation is omitted, the rivet loading process is simplified, miniaturization of riveting equipment is achieved, paper rivets are adopted, the paper bag crimping machine is mainly used for paper bag crimping, cost is reduced, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of riveting devices, in particular to a small paper rivet riveting device and a use method thereof. Background Art

[0002] Existing pressure riveting systems primarily use metal and plastic rivets. Automatic riveting requires equipment or structures that screen the direction and position of the rivets, increasing the cost of using them and the difficulty of loading them. Furthermore, existing automated riveting equipment is large, heavy, and complex, hindering miniaturization. It is primarily used on factory assembly lines, limiting its use in various scenarios and scopes. Furthermore, such riveting devices are difficult to move and cannot be placed in locations such as retail counters, operating tables, and office desks. Consequently, they cannot meet the diverse social needs of diverse scenarios such as supermarkets, clothing stores, copy shops, restaurants, or homes.

[0003] As the industry evolves, existing rivet materials and riveting equipment are no longer suitable for industries like food packaging, clothing packaging, or cultural packaging, posing high costs. For example, for food takeout packaging, due to environmental protection and convenience considerations, paper bags are often used, and sealing methods often include folding, gluing, and staples. Folding and gluing seals are not strong enough, which can easily lead to seal failure. While staples are strong and convenient, metal staples are not user-friendly, are difficult to remove, and can easily puncture fingers during disassembly. Summary of the Invention

[0004] The present invention proposes a small paper rivet riveting device and a method for using the same. By providing a rivet roll, the device for screening the rivet orientation is eliminated, the rivet loading process is simplified, and the riveting equipment is miniaturized. Paper rivets are used mainly for crimping paper bags, thereby reducing costs, saving energy, and being environmentally friendly.

[0005] The technical solution of the present invention is implemented as follows: a small paper rivet riveting device includes a rivet feeding mechanism and a riveting mechanism, the rivet feeding mechanism includes a material frame, a horizontal rotating shaft is provided in the material frame, a rivet roll is mounted on the rotating shaft, the rivet roll includes a wound paper conveyor belt, detachable paper rivets are fixed at intervals on the paper conveyor belt, and the paper rivets are oriented in a unified direction, a rivet positioning groove is provided in the riveting mechanism, and rotating gears are provided at both ends of the rivet positioning groove. The gears drive the paper conveyor belt for transmission, and a vertically lifting feeding plate is provided above the rivet positioning groove.

[0006] Furthermore, the riveting mechanism includes a paper channel, a pushing assembly is provided on one side of the paper channel, and a pressing head assembly is provided on the other side. The pushing assembly includes a base, a rivet positioning groove is provided in the base, and a horizontally reciprocating push rod is provided on the side of the rivet positioning groove away from the pressing head assembly; the pressing head assembly includes a horizontally reciprocating press head plate, and a push pin is fixed on the side of the press head plate close to the rivet positioning groove, the push pin corresponds to the rivet positioning groove, and a coaxial riveting sleeve is fixed on the outside of the push pin.

[0007] Furthermore, a vertically retractable elastic column is provided at the bottom of the rivet positioning groove, and one end of the elastic column close to the big head of the rivet is an inclined surface.

[0008] Furthermore, a pressing plate is provided between the pressure head plate and the paper passage, the pressing plate and the pressure head plate are connected via a horizontal spring, and a through hole is provided at a position of the pressing plate corresponding to the riveting sleeve.

[0009] Furthermore, a support rail is fixed in the base, which includes a first rail for supporting the small head of the rivet and a second rail for supporting the large head of the rivet. The second rail is located below the side of the first rail close to the top rod, and the rivet positioning groove is located on the support rail.

[0010] Furthermore, the gear at the feed end of the rivet positioning slot is the feed gear, which is higher than the support guide rail, and the gear at the discharge end is the waste gear. The paper conveyor belt passes through the lower side of the feed gear, passes through the support guide rail, passes through the upper side of the waste gear, and is then transported downward.

[0011] Furthermore, conveying holes are arranged at intervals on the paper conveyor belt, and the conveying holes match with the teeth of the gear.

[0012] Furthermore, a paper sensor is provided on the base, the top rod is connected to the first electric telescopic rod, the pressure head plate is connected to the second electric telescopic rod, the loading plate is connected to the third electric push rod, and the waste gear is driven to rotate by the motor.

[0013] A method for using a small paper rivet riveting device comprises the following steps:

[0014] The gear drives the paper conveyor belt to convey the paper. The paper rivet is sent to the top of the rivet positioning slot. The paper conveyor belt pauses, the loading plate moves down, the paper rivet is separated from the paper conveyor belt, and sent to the rivet positioning slot. The crimping mechanism presses the paper rivet onto the paper.

[0015] Furthermore, the specific method of the crimping mechanism crimping the paper rivet onto the paper is as follows:

[0016] (1) The paper rivet is inserted into the rivet positioning groove, with the large head of the paper rivet facing the push rod and the small head placed on the elastic column, so that the axis of the paper rivet remains horizontal, and the paper to be riveted is placed in the paper channel;

[0017] (2) The pressure plate drives the ejector pin to move toward the paper, and the pressure plate presses the paper against the base. The spring is compressed, and the ejector pin penetrates the paper and inserts into the paper rivet. The ejector pin pushes the paper rivet out of the rivet positioning slot.

[0018] (3) The small head of the paper rivet passes through the paper and the through hole. As the ejector rod continues to move, the small head of the paper rivet moves along the ejector pin and stretches and bends inside the riveting sleeve to complete the riveting;

[0019] (4) After riveting is completed, the push rod and the pressure head plate are reset.

[0020] Beneficial effects of the present invention:

[0021] The present invention uses a paper conveyor belt to uniformly position the paper rivets in advance. It is only necessary to roll the rivets onto the rotating shaft and then pass the paper conveyor belt around the feed gear and the waste gear. There is no need to screen the direction of the rivets, and the screening equipment or structure for the direction and position of the rivets is eliminated. The rivet loading process is simplified, the loading difficulty is reduced, the application range of the rivets is broadened, and the equipment is miniaturized.

[0022] The rivet rolls of the present invention serve as consumables, enabling standardized production. Users only need to replace the rivet rolls to refill consumables. Furthermore, the rivets are made of paper and have the same structure as conventional rivets. They are primarily used for crimping paper bags and can be used in a variety of settings, such as supermarkets, clothing stores, copy shops, restaurants, and homes. They are energy-efficient, environmentally friendly, and cost-effective. The simplified structure of the riveting equipment reduces the difficulty of rivet refills, facilitating widespread adoption and meeting diverse social needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the external structure of the present invention;

[0025] Figure 2 Schematic diagram of the internal structure of the present invention;

[0026] Figure 3 Schematic diagram of the three-dimensional structure of the crimping mechanism;

[0027] Figure 4 It is a structural diagram of the ejector assembly and the pressure head assembly;

[0028] Figure 5 This is a structural diagram of the rivet positioning groove in Example 2;

[0029] Figure 6 This is a structural diagram of the rivet positioning groove in Example 4.

[0030] Paper channel 1, base 2, rivet positioning slot 3, ejector rod 4, elastic column 5, pressure head plate 6, ejector pin 7, riveting sleeve 8, pressure plate 9, horizontal spring 10, through hole 11, material frame 12, rotating shaft 13, rivet roll 14, paper conveyor belt 15, paper rivet 16, support guide rail 17, first guide rail 18, second guide rail 19, slide 20, loading plate 21, feed gear 22, waste gear 23, conveying hole 24, paper sensor 25, first electric telescopic rod 26, second electric telescopic rod 27, third electric push rod 28, motor 29. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] like Figure 1 、 2 As shown in Figure 5, a small paper rivet riveting device includes a rivet feeding mechanism and a crimping mechanism, with a rivet positioning slot 3 provided within the crimping mechanism. The rivet feeding mechanism includes a feed frame 12, within which a horizontal rotating shaft 13 is mounted. A rivet roll 14 is mounted on the rotating shaft 13. The rivet roll 14 includes a wound paper conveyor belt 15, wound together in layers in a spiral shape. Removable paper rivets 16 are fixed to the paper conveyor belt 15 at intervals. The small ends of the paper rivets 16 can be fixed to the paper conveyor belt 15 by bonding or other means. A vertically movable feeding plate 21 is provided above the rivet positioning slot 3 to push the paper rivets 16 off the paper conveyor belt 15 and into the rivet positioning slot 3.

[0034] Rotating gears are installed at both ends of the rivet positioning groove 3. The gears drive the paper conveyor belt 15 for conveying. The paper rivet 16 is sent to the top of the rivet positioning groove 3, the paper conveyor belt 15 is paused, and the loading plate 21 moves down, pushing the paper rivet 16 out of the paper conveyor belt 15 and sending it to the rivet positioning groove 3. The crimping mechanism crimps the paper rivet onto the paper.

[0035] Example 2

[0036] This embodiment is basically the same as embodiment 1, except that: Figure 3-5As shown, the crimping mechanism includes a paper channel 1, a push assembly is provided on one side of the paper channel 1, and a pressure head assembly is provided on the other side. The push assembly includes a fixed base 2, a rivet positioning groove 3 is provided in the base 2, and a horizontally reciprocating push rod 4 is provided on the side of the rivet positioning groove 3 away from the pressure head assembly.

[0037] The ram assembly includes a horizontally reciprocating ram plate 6. A pin 7 is fixed to the side of the ram plate 6 near the rivet positioning slot 3. Pin 7 aligns with the rivet positioning slot 3. A coaxial riveting sleeve 8 is fixed to the outside of the ram plate 7, forming a riveting slot between the pin 7 and the sleeve. A pressure plate 9 is also located between the ram plate 6 and the paper channel 1. This pressure plate 9 is connected to the ram plate 6 by a horizontal spring 10. A through-hole 11 is provided in the ram plate 9 at the position corresponding to the riveting sleeve 8. This pressure plate 9 presses the paper to be riveted against the base 2, preventing it from shifting and affecting the quality of the riveting.

[0038] The specific method of the crimping mechanism to crimp the paper rivet onto the paper is as follows:

[0039] (1) The paper rivet 16 enters the rivet positioning groove 3, with the large end of the paper rivet 16 facing the ejector rod 4, and the paper to be riveted is placed in the paper channel 1;

[0040] (2) The pressure plate 6 drives the ejector pin 7 to move toward the paper, the pressure plate 9 presses the paper onto the base 2, the horizontal spring 10 is compressed, the ejector pin 7 penetrates the paper and inserts into the small head of the paper rivet 16, and at the same time the ejector pin 4 pushes the paper rivet 16 out of the rivet positioning slot 3;

[0041] (3) The small head of the paper rivet 16 passes through the paper and the through hole 11. As the ejector pin 4 continues to move, the small head of the paper rivet 16 moves along the ejector pin 7 and bends inside the riveting sleeve 8, completing the riveting;

[0042] (4) After riveting is completed, the push rod 4 and the pressure head plate 6 are reset.

[0043] Example 3

[0044] This embodiment is basically the same as embodiment 2, except that: Figure 4 and 5 As shown, a support rail 17 is also fixed in the base 2. The support rail 17 includes a first rail 18 for supporting the small end of the paper rivet 16 and a second rail 19 for supporting the large end of the paper rivet 16. The second rail 19 is located below the first rail 18 on the side close to the top rod 4. The paper conveyor belt 15 drives the paper rivet 16 to move along the support rail 17. The rivet positioning groove 3 is located on the support rail 17.

[0045] like Figure 2 and 3As shown, the gear at the feed end of the rivet positioning groove 3 is the feed gear 22, the feed gear 22 is higher than the support guide rail 17, the gear at the discharge end is the waste gear 23, and the paper conveyor belt 15 is provided with conveying holes 24 at intervals, and the conveying holes 24 cooperate with the teeth of the gear. The paper conveyor belt 15 passes through the lower side of the feed gear 22, moves along the upper side of the support guide rail 17, passes through the upper side of the waste gear 23, and then conveys downward to recycle the paper conveyance. The gear rotates to drive the paper conveyor belt 15, and each time drives a paper rivet 16 to be conveyed to the top of the rivet positioning groove 3.

[0046] Example 4

[0047] This embodiment is basically the same as embodiment 1, 2 or 3, except that Figure 6 As shown, a chute 20 is provided at the bottom of the rivet positioning groove 3, and a vertically retractable elastic column 5 is provided at the chute 20. The end of the elastic column 5 near the large end of the rivet is an inclined surface. When the paper rivet 16 enters the rivet positioning groove 3, the large end of the paper rivet 16 faces the push rod 4, and the small end is placed on the elastic column 5. This keeps the axis of the paper rivet 16 horizontal, preventing the small end of the paper rivet from tilting downward and affecting the quality of the riveting. This is particularly suitable for rivets whose center of gravity is close to the small end and the small end is easily moved downward. When the push rod 4 pushes the paper rivet 16 to move along the rivet positioning groove 3, the ejector pin 7 penetrates the paper and inserts into the small end of the paper rivet 16, limiting the movement path of the paper rivet 16. The large end of the paper rivet 16 pushes the inclined surface of the elastic column 5, causing it to shrink into the chute 20, without affecting the movement of the paper rivet 16.

[0048] Example 5

[0049] This embodiment is basically the same as embodiment 2, 3 or 4, except that Figure 3 and Figure 5 As shown, a paper sensor 25 is fixed on the base 2, and the paper sensor 25 can be an infrared proximity switch, etc. The top rod 4 is connected to the first electric telescopic rod 26, the pressure head plate 6 is connected to the second electric telescopic rod 27, the loading plate 21 is connected to the third electric push rod 28, and the waste gear 23 is driven to rotate by the motor 29.

[0050] When the paper sensor 25 senses the paper, the motor 29 drives the waste gear 23 to rotate, and the paper conveyor belt 15 drives a paper rivet 16 to the top of the rivet positioning groove 3. The third electric push rod 28 extends, and the loading plate 21 moves downward, so that the paper rivet 16 is detached from the paper conveyor belt 15 and falls into the rivet positioning groove 3. Then the second electric telescopic rod 27 drives the pressure head plate 6 to move horizontally, and the first electric telescopic rod 26 drives the ejector rod 4 to move horizontally.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A small paper rivet riveting device, characterized by: It includes a rivet feeding mechanism and a riveting mechanism. The rivet feeding mechanism includes a material frame. A rotating shaft is provided in the material frame. A rivet roll is mounted on the rotating shaft. The rivet roll includes a wound paper conveyor belt. Removable paper rivets are fixed at intervals on the paper conveyor belt. The paper rivets are oriented in a unified direction. A rivet positioning groove is provided in the riveting mechanism. Rotating gears are provided at both ends of the rivet positioning groove. The gears drive the paper conveyor belt for transmission. A vertically lifting feeding plate is provided above the rivet positioning groove.

2. A small paper rivet riveting device according to claim 1, characterized in that: The riveting mechanism includes a paper channel, a pushing assembly is provided on one side of the paper channel, and a pressing head assembly is provided on the other side. The pushing assembly includes a base, a rivet positioning groove is provided in the base, and a horizontally reciprocating push rod is provided on the side of the rivet positioning groove away from the pressing head assembly; the pressing head assembly includes a horizontally reciprocating pressing head plate, and a push pin is fixed on the side of the pressing head plate close to the rivet positioning groove. The push pin corresponds to the rivet positioning groove, and a coaxial riveting sleeve is fixed on the outside of the push pin.

3. A small paper rivet riveting device according to claim 2, characterized in that: A vertically retractable elastic column is provided at the bottom of the rivet positioning groove, and one end of the elastic column close to the big head of the rivet is an inclined surface.

4. A small paper rivet riveting device according to claim 2 or 3, characterized in that: A pressing plate is further provided between the pressing head plate and the paper passage. The pressing plate and the pressing head plate are connected via a horizontal spring. A through hole is provided at a position of the pressing plate corresponding to the riveting sleeve.

5. A small paper rivet riveting device according to claim 2, characterized in that: A support rail is also fixed in the base, which includes a first rail for supporting the small head of the rivet and a second rail for supporting the large head of the rivet. The second rail is located below the side of the first rail close to the top rod, and the rivet positioning groove is located on the support rail.

6. A small paper rivet riveting device according to claim 5, characterized in that: The gear at the feed end of the rivet positioning slot is the feed gear, which is higher than the support guide rail. The gear at the discharge end is the waste gear. The paper conveyor belt passes through the lower side of the feed gear, passes through the support guide rail, passes through the upper side of the waste gear, and is then transported downward.

7. A small paper rivet riveting device according to claim 1, characterized in that: Conveying holes are arranged at intervals on the paper conveyor belt, and the conveying holes match with the teeth of the gear.

8. The small paper rivet riveting device according to claim 2, characterized in that: A paper sensor is provided on the base, the top rod is connected to the first electric telescopic rod, the pressure head plate is connected to the second electric telescopic rod, the loading plate is connected to the third electric push rod, and the gear is driven to rotate by the motor.

9. A method for using the small paper rivet riveting device according to any one of claims 1 to 8, characterized in that: The following steps are involved: The gear drives the paper conveyor belt to convey the paper. The paper rivet is sent to the top of the rivet positioning slot. The paper conveyor belt pauses, the loading plate moves down, pushes the paper rivet off the paper conveyor belt, and sends it to the rivet positioning slot. The crimping mechanism presses the paper rivet onto the paper.

10. The method of use according to claim 9, characterized in that: The specific method of the crimping mechanism to crimp the paper rivet onto the paper is as follows: (1) The paper rivet is inserted into the rivet positioning groove, with the large head of the paper rivet facing the push rod and the small head placed on the elastic column, so that the axis of the paper rivet remains horizontal, and the paper to be riveted is placed in the paper channel; (2) The pressure plate drives the ejector pin to move toward the paper, and the pressure plate presses the paper against the base. The spring is compressed, and the ejector pin penetrates the paper and inserts into the paper rivet. The ejector pin pushes the paper rivet out of the rivet positioning slot. (3) The small head of the paper rivet passes through the paper and the through hole. As the ejector rod continues to move, the small head of the paper rivet moves along the ejector pin and stretches and bends inside the riveting sleeve to complete the riveting; (4) After riveting is completed, the push rod and the pressure head plate are reset.

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