Package consumable box with non-return structure

Abstract

The package consumable box with the non-return structure comprises a box body, a winding drum rotationally arranged in the box body and consumables wound on the winding drum, an outlet is formed in the box body, and a first non-return assembly used for preventing the consumables from returning is arranged at the position, close to the outlet, of the inner wall of the box body. According to the package consumable box with the non-return structure, through the first non-return assembly, the first installation base on the first non-return assembly, the protruding base, the L-shaped vertical plate and the non-return claw, when the consumable is conveyed in the forward direction, the consumable penetrates through a gap between the non-return claw and the vertical part of the L-shaped vertical plate, the non-return claw makes contact with the surface of the consumable, and the consumable is conveyed in the forward direction; under the action of friction force, the non-return claw slightly deflects, at the moment, consumables can pass through the non-return claw, and the torsion spring is in a slightly compressed state; when the consumables tend to move reversely, the consumables can be abutted under the action of the torsion spring and the non-return claw, the consumables are prevented from returning, one-way stability of conveying of the consumables is guaranteed, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing consumables technology, specifically to a roll consumable box with a backflow prevention structure. Background Technology

[0002] In the 3D printing process, stable filament delivery is crucial for ensuring print quality. Current 3D printing filament delivery devices may experience issues such as filament retraction and jamming, leading to unstable extrusion volume and affecting printing accuracy. For example, traditional filament boxes lack effective anti-reverse mechanisms, making the filament prone to reverse movement during delivery due to external forces or mechanism resets, thus affecting printing continuity.

[0003] Most traditional filament cartridges lack a backflow prevention mechanism, relying solely on the friction between the filament and the cartridge to prevent retraction. When the printer stops, the motor resets, or is subjected to vibration, the filament lacks strong mechanical restraint and is prone to reverse movement. If the printing of a complex model is paused and restarted midway, the filament retraction can lead to extrusion deviations, causing material breaks, poor interlayer adhesion, and severely affecting accuracy and model integrity. While some traditional filament cartridges have simple backflow prevention designs (such as a single elastic clip), their materials and structures are unreasonable, and their elasticity diminishes over long-term use. They cannot adaptively adjust to filaments of different hardness and diameter, resulting in poor backflow prevention reliability and difficulty in meeting stable printing requirements.

[0004] In scenarios with high stability requirements, such as industrial-grade 3D printing, traditional consumable boxes are difficult to guarantee continuous operation for long periods of time due to structural defects. For example, in large-scale factory production, their anti-reverse and transmission problems will be amplified, and frequent conveying failures will affect production efficiency and fail to meet the needs of high-speed and high-precision printing. Utility Model Content

[0005] The purpose of this utility model is to provide a roll consumable box with a backflow prevention structure to solve the problems mentioned in the background art.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A roll consumable box with a backflow prevention structure includes: a box body, a winding drum rotatably disposed in the box body, and consumables wound on the winding drum. The box body has an outlet, and a backflow prevention component for preventing the consumables from retracting is disposed on the inner wall of the box body near the outlet.

[0008] The anti-reverse assembly includes a mounting base 1 horizontally disposed on the inner side wall of the box and corresponding to the outlet, a protrusion disposed on the mounting base 1, an L-shaped vertical plate vertically disposed on the mounting base 1 and corresponding to the protrusion, and an anti-reverse claw hinged to the protrusion and opposite to the vertical part of the L-shaped vertical plate. A through hole corresponding to the outlet is opened on the horizontal part of the L-shaped vertical plate, and a torsion spring is provided between the anti-reverse claw and the protrusion. The consumable material passes through the through hole and the gap between the anti-reverse claw and the vertical part of the L-shaped vertical plate in sequence and extends out from the outlet.

[0009] Furthermore, the inner wall of the aforementioned box is provided with a second anti-reverse component to prevent the winding drum from reversing;

[0010] The anti-reverse assembly includes a ratchet located inside the box and disposed on the outer wall of one end of the winding cylinder, a mounting seat two disposed on the inner side wall of the box and corresponding to the ratchet, and a pawl hinged to the end of the mounting seat two and engaged with the ratchet. The mounting seat two is provided with a limiting groove to facilitate the rotation of the pawl.

[0011] Furthermore, the aforementioned mounting base two corresponds to mounting base one.

[0012] Furthermore, the top inner wall of the aforementioned box is provided with an auxiliary limiting block that matches the outer edge of the consumable.

[0013] Furthermore, the aforementioned auxiliary limiting blocks are symmetrically arranged in two sets, and are located at the top two ends of the consumable and matched with its outer edge.

[0014] Furthermore, the bottom inner wall of the aforementioned box is provided with an auxiliary limiting block two that matches the outer edge of the consumable.

[0015] Furthermore, the aforementioned auxiliary limiting blocks are symmetrically arranged in two sets, and are located at both ends of the bottom of the consumable and match its outer edge.

[0016] Furthermore, the aforementioned auxiliary limiting block two corresponds to auxiliary limiting block one.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model discloses a roll consumable box with a backstop structure. Through a backstop component, a mounting base, a protrusion, an L-shaped vertical plate, and a backstop claw on the backstop component, when the consumable is conveyed in the forward direction, the consumable passes through the gap between the backstop claw and the vertical part of the L-shaped vertical plate, and the backstop claw contacts the surface of the consumable. Under the action of friction, the backstop claw will deflect slightly, at which time the consumable can pass through, and the torsion spring is in a slightly compressed state. When the consumable has a tendency to move in the reverse direction, the torsion spring and the backstop claw can stop the consumable and prevent the consumable from retreating, thereby ensuring the unidirectional stability of the consumable conveying.

[0019] 2. In the second anti-reverse component of this utility model, when the ratchet rotates in the forward direction and conveys consumables, the tooth groove of the ratchet pushes the pawl to deflect. When the ratchet rotates in the reverse direction, the pawl will lock the ratchet and restrict its reverse rotation. Through the synergistic effect of the first and second anti-reverse components, the consumables are effectively prevented from retracting, ensuring the unidirectional stability of consumable conveying and improving production efficiency.

[0020] 3. The present invention provides a roll-type consumable box with a backflow prevention structure. The mechanical structure is simple and reliable. Backflow prevention component one and backflow prevention component two are installed inside the box, occupying little space and having strong adaptability. It can improve the consumable feeding accuracy of 3D printing equipment, thereby improving printing quality. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a roll consumable box with a backflow prevention structure;

[0022] Figure 2 A schematic diagram of the internal structure of a roll consumable box with a backflow prevention structure;

[0023] Figure 3 A schematic diagram of the structure of the reverse component 1;

[0024] Figure 4 This is a schematic diagram of the structure of the reversible component 2.

[0025] In the diagram: 1. Box body; 11. Outlet; 2. Winding drum; 3. Consumables; 4. Anti-reverse component one; 41. Mounting base one; 42. Plug; 43. L-shaped vertical plate; 44. Anti-reverse pawl; 45. Through hole; 5. Anti-reverse component two; 51. Ratchet; 52. Mounting base two; 521. Limiting groove; 53. Pawl; 6. Auxiliary limiting block one; 7. Auxiliary limiting block two. Detailed Implementation

[0026] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0027] like Figures 1 to 4 As shown, an embodiment of this utility model provides a roll consumable box with a backstop structure, including: a box body 1, the box body 1 being hollow inside, a winding cylinder 2 rotatably disposed inside the box body 1, the winding cylinder 2 being rotated by engaging with the front and rear side walls of the box body 1 through shaft holes; and consumables 3 wound on the winding cylinder 2, the box body 1 having an outlet 11 for the consumables 3 to extend out; and a backstop component 4 for preventing the consumables 3 from retracting is provided on the inner wall of the box body 1 near the outlet 11.

[0028] Specifically, the anti-reverse component 4 includes a mounting base 41, a protrusion 42, an L-shaped vertical plate 43, and an anti-reverse claw 44. The mounting base 41 is horizontally disposed on the inner side wall of the box body 1 and corresponds to the outlet 11. In this embodiment, the outlet 11 is located at the top of the box body 1, and the mounting base 41 is located below the outlet 11. The mounting base 41 is arranged along the length of the box body 1 and is perpendicular to the side wall of the box body 1. The protrusion 42 is disposed on the mounting base 41. In this embodiment, the protrusion 42 is located at the top of the mounting base 41. The L-shaped vertical plate 43 is vertically disposed on the mounting base 41 and corresponds to the outlet 11. The boss 42 corresponds to the horizontal portion of the L-shaped vertical plate 43, which has a through hole 45 corresponding to the outlet 11. The anti-reverse claw 44 is hinged to the boss 42 and is opposite to the vertical portion of the L-shaped vertical plate 43. A torsion spring is provided between the anti-reverse claw 44 and the boss 42. At the same time, there is a gap between the end of the anti-reverse claw 44 away from the boss 42 and the vertical portion of the L-shaped vertical plate 43. The consumable 3 passes through the through hole 45 and the gap between the anti-reverse claw 44 and the vertical portion of the L-shaped vertical plate 43 in sequence and extends out from the outlet 11. At the same time, the end of the anti-reverse claw 44 away from the boss 42 contacts the outer surface of the consumable 3.

[0029] When consumable 3 is being conveyed in the forward direction, the end face of the anti-reverse claw 44 contacts the surface of consumable 3. Under the action of friction, the anti-reverse claw 44 will deflect slightly. At this time, consumable 3 can pass through, and the torsion spring is in a slightly compressed state. The moving direction of consumable 3 is the same as the compression direction of the torsion spring. When consumable 3 shows a tendency to move in the reverse direction, the torsion spring and the anti-reverse claw 44 can hold the consumable 3 in place and prevent the consumable 3 from retracting.

[0030] Specifically, the inner wall of the housing 1 is provided with a second anti-reverse component 5 to prevent the winding drum 2 from reversing; the second anti-reverse component 5 includes a ratchet 51, a second mounting seat 52, and a pawl 53. The ratchet 51 is located inside the housing 1 and is provided on the outer wall of one end of the winding drum 2. The second mounting seat 52 is provided on the inner side wall of the housing 1 and corresponds to the ratchet 51. In this embodiment, the second mounting seat 52 corresponds to the first mounting seat 41. The pawl 53 is hinged to the end of the second mounting seat 52 and engages with the ratchet 51. The second mounting seat 52 is provided with a limiting groove 521 to facilitate the rotation of the pawl 53. When the ratchet 51 rotates in the forward direction and transports the consumable 3, the tooth groove of the ratchet 51 pushes the pawl 53 to deflect. When the ratchet 51 rotates in the reverse direction, the pawl 53 restricts its rotation under the action of the limiting groove 521. In this way, the pawl 53 will lock the ratchet 51 and restrict its reverse rotation. At the same time, when the ratchet 51 rotates in the forward direction, it can also provide a certain resistance in conjunction with the pawl 53 and prevent the consumable 3 from being too loose and causing entanglement.

[0031] In other embodiments of this utility model, in order to limit the consumable 3 wound on the winding cylinder 2 and reduce the entanglement of the consumable 3, an auxiliary limiting block 6 matching the outer edge of the consumable 3 is provided on the top inner wall of the box body 1; two sets of auxiliary limiting blocks 6 are symmetrically arranged and are located at the top two ends of the consumable 3 and match their outer edges. An auxiliary limiting block 7 matching the outer edge of the consumable 3 is provided on the bottom inner wall of the box body 1; two sets of auxiliary limiting blocks 7 are symmetrically arranged and are located at the bottom two ends of the consumable 3 and match their outer edges. Furthermore, the auxiliary limiting block 7 corresponds to the auxiliary limiting block 6.

[0032] This invention effectively prevents the consumable 3 from retracting through the synergistic action of anti-reverse component 4 and anti-reverse component 5, ensuring the unidirectional stability of the consumable 3's transport and improving production efficiency. Furthermore, the mechanical structure of the consumable 3 box in this invention is simple and reliable. The anti-reverse component 4 and anti-reverse component 5 are installed inside the box body 1, occupying little space and having strong adaptability. This can improve the transport accuracy of the consumable 3 in 3D printing equipment, thereby improving printing quality.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roll-type consumable box with a backflow prevention structure, characterized in that, The utility model relates to a cartridge (1), a winding drum (2) rotatably arranged in the cartridge (1), and a consumable (3) wound on the winding drum (2), wherein the cartridge (1) is provided with an outlet (11), and an anti-return assembly (4) for preventing the consumable (3) from returning is arranged on the inner wall of the cartridge (1) near the outlet (11). The anti-return assembly (4) comprises a mounting seat (41) arranged horizontally on the inner wall of the cartridge (1) and corresponding to the outlet (11), a boss (42) arranged on the mounting seat (41), an L-shaped vertical plate (43) arranged vertically on the mounting seat (41) and corresponding to the boss (42), and an anti-return claw (44) hinged to the boss (42) and opposite to the vertical part of the L-shaped vertical plate (43), wherein a through hole (45) corresponding to the outlet (11) is arranged on the horizontal part of the L-shaped vertical plate (43), and a torsional spring is arranged between the anti-return claw (44) and the boss (42); the consumable (3) sequentially passes through the through hole (45) and the gap between the anti-return claw (44) and the vertical part of the L-shaped vertical plate (43) and extends out of the outlet (11). The inner wall of the cartridge (1) is provided with an anti-return assembly (5) for preventing the winding drum (2) from reversing.

2. The package consumable case having a non-return structure according to claim 1, characterized by, The anti-return assembly (5) comprises a ratchet wheel (51) arranged in the cartridge (1) and on the outer wall of one end of the winding drum (2), a mounting seat (52) arranged on the inner wall of the cartridge (1) and corresponding to the ratchet wheel (51), and a pawl (53) hinged to the end of the mounting seat (52) and engaged with the ratchet wheel (51), wherein a limiting groove (521) for facilitating the rotation of the pawl (53) is arranged on the mounting seat (52). The mounting seat (52) corresponds to the mounting seat (41).

3. The package consumable case having a non-return structure according to claim 2, characterized by, The top inner wall of the cartridge (1) is provided with an auxiliary limiting block (6) matched with the outer edge of the consumable (3).

4. The take-up material supply cassette having a non-return structure according to any one of claims 1 to 3, characterized in that, The auxiliary limiting block (6) is symmetrically provided with two groups, and is respectively arranged at the top of the two ends of the consumable (3) and matched with the outer edge thereof.

5. The package of consumable according to claim 4, wherein The bottom inner wall of the cartridge (1) is provided with an auxiliary limiting block (7) matched with the outer edge of the consumable (3).

6. The package consumable case having a non-return structure according to claim 4, characterized by, The auxiliary limiting block (7) is symmetrically provided with two groups, and is respectively arranged at the bottom of the two ends of the consumable (3) and matched with the outer edge thereof.

7. The take-up material package case having a non-return structure according to claim 6, characterized by, The auxiliary limiting block (7) corresponds to the auxiliary limiting block (6).

8. The take-up material package case having a non-return structure according to claim 6, characterized by, ​

Images