A dual bayonet capsule piercing assembly

Abstract

The present application relates to a kind of double bayonet capsule puncture assemblies, including base, base is equipped with the annular boss for placing rotating ring, the surface of annular boss is equipped with circular arc guide rail groove, further including two upper and lower stacked, mutually rotating connection upper rotating ring and lower rotating ring, the rotating direction of two rotating rings is opposite, the inner side wall of two rotating rings is equipped with one blade, and two blades are stacked up and down;The lower surface of lower rotating ring is equipped with the convex bone strip compatible with circular arc guide rail groove, when convex bone strip moves out of circular arc guide rail groove with the rotation of lower rotating ring, two rotating rings are simultaneously moved up and drive two blades to stab up;When convex bone strip moves into circular arc guide rail groove, two rotating rings are simultaneously sunk and drive two blades to descend.The present application is equipped with two rotating rings of reverse operation, drives two blades to cut in reverse, and rotating ring operation half cycle can open capsule box completely, compared with the puncture structure of existing single knife, tear film efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food capsules, in particular to a double-knife capsule puncture assembly. BACKGROUND

[0002] In the technical field of food capsules, there are capsule coffee powder, capsule flour, etc., which use a capsule box to store powder. When needed, the sealing film of the capsule box is pierced or torn, and the powder is poured out. At the same time, there are corresponding equipment on the market, such as capsule coffee machines and capsule bread machines. Such products have brought great convenience to people's lives and meet the fast pace of life today.

[0003] For example, Chinese Patent No. CN205031109U discloses an automatic puncture capsule device, which includes a blade, a rotating ring, and a base. The blade is fixed in the groove of the rotating ring through a guide block, and the rotating ring rotates on the base. By using the guide rail structure on the base, the guide block moves along the inclined surface of the guide rail during the rotation of the rotating ring, driving the blade to pierce the sealing film and simultaneously making circular motion while tearing the film surface. This product realizes that the blade only extends when it needs to pierce the sealing film of the capsule, and hides when it is not working, improving the safety of use, and the puncture process is fully automatic and easy to operate.

[0004] It can be seen that the above-mentioned puncture capsule device only has one blade, and the capsule can complete the film tearing after the blade completes a nearly circular path. The result of film tearing is determined by one blade. If the blade is abnormal or the film is too strong and cannot effectively pierce the film surface, the film tearing will fail. Some people propose to set two blades at symmetrical positions of the rotating ring. Although this idea can solve the defect of a single blade, the two blades can only tear two disconnected slits in the sealing film. The sealing film at the initial position of the two blades is still connected to the capsule box, and the sealing film cannot be completely opened. The powder can only fall from both sides of the sealing film, and part of the powder is blocked in the middle, resulting in a lot of powder remaining in the capsule box.

[0005] The present application aims to develop an efficient puncture assembly to solve the problem of low film breaking efficiency of the existing automatic puncture capsule. SUMMARY

[0006] In order to overcome the shortcomings of the existing technology, the present application provides a double-knife capsule puncture assembly.

[0007] The technical scheme of the present application is as follows:

[0008] A double-knife capsule puncture assembly includes a base, the base is provided with an annular boss for placing a rotating ring, the surface of the annular boss is provided with a circular arc guide rail groove, and the assembly further includes two upper and lower stacked and rotationally connected upper and lower rotating rings. The rotating directions of the two rotating rings are opposite, the inner side walls of the two rotating rings are each provided with a blade, and the two blades are stacked vertically.

[0009] The lower surface of the lower rotating ring is provided with a convex bone strip matched with the circular arc guide rail slot, when the convex bone strip moves out of the circular arc guide rail slot with the rotation of the lower rotating ring, the two rotating rings move up at the same time and drive the two blades to move up, when the convex bone strip moves into the circular arc guide rail slot, the two rotating rings sink at the same time and drive the two blades to move down.

[0010] According to the above-mentioned scheme, characterized in that, the opposite sides of the annular boss are provided with two circular arc guide rail slots, including a first circular arc guide rail slot and a second circular arc guide rail slot, the first circular arc guide rail slot is located on the inner edge circle of the annular boss, and the second circular arc guide rail slot is located on the outer edge circle of the annular boss.

[0011] According to the above-mentioned scheme, characterized in that, further comprising a driving motor and a gear transmission mechanism, the gear transmission mechanism comprises a lower gear and an upper gear rotating in opposite directions, the lower gear is in meshing connection with the lower rotating ring, the upper gear is in meshing connection with the upper rotating ring, and the output gear of the driving motor is in meshing connection with one of the gears of the gear transmission mechanism.

[0012] Further, the gear transmission mechanism further comprises two long strip gears, the lower gear, the first long strip gear, the second long strip gear and the upper gear are sequentially in meshing connection, and the output gear is in meshing connection with the lower gear.

[0013] Still further, the base is provided with a notch for exposing the lower gear, and a plurality of gear shaft seats are arranged on the side of the notch.

[0014] According to the above-mentioned scheme, characterized in that, the cross section of the upper gear is in the shape of a Chinese character "K", comprising a large gear and a small gear rotating on the same shaft, the large gear is in meshing connection with the upper rotating ring, and the small gear is in meshing connection with the lower gear.

[0015] According to the above-mentioned scheme, characterized in that, further comprising a top cover, the top cover is in upper and lower buckling connection with the base, and the two rotating rings are located between the top cover and the base; the upper surface of the upper rotating ring is uniformly provided with a plurality of spring keys, and the spring keys are in abutment with the top cover.

[0016] Further, the spring key comprises a spring cap and a spring located in the spring cap, the top of the spring cap is provided with a ball, one end of the spring is connected with the ball, and the other end of the spring is connected with the upper rotating ring, and the ball contacts the lower surface of the top cover.

[0017] According to the above-mentioned scheme, characterized in that, the middle part of the top cover is provided with a hollow opening aligned with the hollow opening of the base, and the hollow opening of the top cover is surrounded by an L-shaped clamping groove for mounting a capsule box.

[0018] According to the present invention of the above scheme, the lower surface of the upper rotating ring is provided with a circular convex ring, the upper surface of the lower rotating ring is provided with a corresponding circular groove, the circular convex ring is inserted into the circular groove and rotates within the circular groove.

[0019] Furthermore, the lower surface of the upper rotating ring is provided with a lower convex ring, and the upper surface of the lower rotating ring is provided with a corresponding upper convex ring. The upper convex ring and the lower convex ring are in contact and connected, so that there is a gap between the teeth of the upper rotating ring and the teeth of the lower rotating ring.

[0020] According to the present invention described above, the lower surface of the upper rotating ring and the upper surface of the lower rotating ring are both provided with blade mounting grooves, and the distance between the groove surfaces of the two blade mounting grooves is equal to the length difference between the two blades.

[0021] According to the above-described solution, the beneficial effects of this invention are as follows:

[0022] This invention uses two counter-rotating rings to drive two blades to cut in opposite directions. The capsule box can be fully opened after the rotating rings have rotated half a turn. Compared with the existing single-blade piercing structure, this improves the film tearing efficiency. Moreover, in the second half of the rotation, the two blades can cut off the film layer that the other blade has not completely cut, preventing the other half of the rotation from not tearing, thus ensuring that the capsule box is fully opened and preventing powder residue. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is an exploded view of the structure of the present invention;

[0025] Figure 3 for Figure 2 Enlarged view of section A;

[0026] Figure 4 This is a cross-sectional view of the present invention;

[0027] Figure 5 for Figure 4 Enlarged view of section B;

[0028] Figure 6 for Figure 4 Enlarged view of section C;

[0029] Figure 7 This is a top-down view of the base.

[0030] Figure 8 This is a schematic diagram of the gear structure in Example 3.

[0031] In the drawings,

[0032] 1, base; 10, annular boss;

[0033] 11, first circular arc guide rail groove; 12, second circular arc guide rail groove; 13, notch; 14, gear shaft seat;

[0034] 2, top cover;

[0035] 21, L-shaped clamping groove;

[0036] 3, upper rotating ring;

[0037] 31, round convex ring; 32, lower convex ring; 33, spring key;

[0038] 4, lower rotating ring;

[0039] 41, convex bone strip; 42, round ring groove; 43, upper convex ring;

[0040] 5, blade;

[0041] 6, gear transmission mechanism;

[0042] 61, upper gear; 62, lower gear; 63, first long strip gear; 64, second long strip gear; 65, large gear; 66, small gear;

[0043] 7, capsule box. DETAILED DESCRIPTION

[0044] In order to better understand the purpose, technical scheme and technical effect of the present application, the present application will be further explained in combination with the drawings and examples. It is declared that the following described examples are only for explaining the present application, and not for limiting the present application.

[0045] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or a middle element can exist at the same time.

[0046] The terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or position based on the orientation or position shown in the drawings, and are only for the convenience of description, and cannot be understood as a limitation on the technical scheme.

[0047] The terms "first", "second" are only for the purpose of convenient description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0048] Embodiment one

[0049] As Figures 1 to 7 shown, a double-blade capsule piercing assembly includes a base 1 provided with an annular boss 10 for placing a rotating ring, a hollow middle of the annular boss 10 for pouring powder; a circular arc guide rail groove is provided on the surface of the annular boss 10, and transition slopes are provided at both ends of the circular arc guide rail groove, the transition slopes connecting a low-position groove surface and a high-position table surface; a convex bone strip 41 adapted to the circular arc guide rail groove is provided on the lower surface of the lower rotating ring 4, and the convex bone strip 41 can move from inside the groove to outside the groove or from outside the groove to inside the groove along the transition slopes.

[0050] The scheme also includes an upper rotating ring 3 and a lower rotating ring 4, each of which is connected with a power driving member to obtain power independently, and the rotating directions of the two rotating rings are opposite; the upper rotating ring 3 and the lower rotating ring 4 are stacked one above the other and are rotationally connected with each other, and the friction force is small and negligible, so as not to interfere with the rotation of each other.

[0051] The inner side walls of the two rotating rings are each provided with a blade 5, and when the two rotating rings rotate in opposite directions, the two blades 5 move in opposite directions to simultaneously cut the sealing film of the capsule box 7 from two different directions of clockwise and counterclockwise.

[0052] The upper and lower rotating rings (3, 4) are stacked on the annular boss 10, and when the convex bone strip 41 of the lower rotating ring 4 moves out of the circular arc guide rail groove along with the rotation of the lower rotating ring 4, the convex bone strip 41 enters the high-position table surface, so that the two rotating rings simultaneously move upward and drive the two blades 5 to upwardly stab; when the rotating ring continues to rotate, the convex bone strip 41 moves on the high-position table surface, and the blade 5 that stabs the sealing film cuts the sealing film; when the convex bone strip 41 reenters the circular arc guide rail groove, the convex bone strip 41 is located on the low-position groove surface, so that the two rotating rings simultaneously sink and drive the two blades 5 to descend and move away from the sealing film.

[0053] As Figure 6 shown, in the scheme, the two blades 5 are stacked one above the other, that is, the initial positions of the two blades 5 are the same, and when the two blades 5 are reversely operated, the two blades 5 first stab into the sealing film at the corresponding positions of both ends of the circular arc guide rail groove and respectively run to the half-week position to meet and overlap each other; at this time, the sealing film has been completely cut open, and only the sealing film at the initial position is connected with the capsule box 7.

[0054] It needs to be explained that there is a small gap between the two blades 5 stacked together, which does not affect the movement of each other; on the other hand, after the two blades meet, they continue to rotate and enter the slit cut by the other, that is, the two slits can be connected, because the initially intact sealing film is in a tension state, when the film edge is cut, the film cutting edge will be rolled and the width of the cut will be greater than the thickness of the blade 5. Therefore, the two blades only need to slide to the meeting point, that is, the rotating ring rotates half a circle, so that the capsule box 7 can be completely opened, and the powder is completely dropped into the stirring container.

[0055] It can be seen that, by arranging two rotating rings running in opposite directions to drive two blades to cut in opposite directions, the rotating ring can completely open the capsule box in half a circle, compared with the existing single-blade piercing structure, the film tearing efficiency is improved; and in the second half of the rotation, the two blades can also cut the film layer that has not been completely cut by the other blade, preventing the other half from being cut, thereby ensuring that the capsule box is completely opened and preventing powder residue.

[0056] In this embodiment, the lower surface of the upper rotating ring 3 is provided with a blade mounting groove, and the upper surface of the lower rotating ring 4 is provided with a blade mounting groove, and in the initial state, the two blade mounting grooves are aligned; the distance between the groove surfaces of the two blade mounting grooves is equal to the length difference of the two blades, so that the height of the installed two blades is always the same, and the sealing film is pierced at the same time.

[0057] As shown in Figure 2 and 7 In the present application, opposite sides of the annular boss 10 are provided with two circular arc guide grooves, including a first circular arc guide groove 11 and a second circular arc guide groove 12, the first circular arc guide groove 11 is located on the inner edge circle of the annular boss 10, and the second circular arc guide groove 12 is located on the outer edge circle of the annular boss 10, that is, the distance from the first circular arc guide groove 11 to the center of the annular boss 10 is not equal to the distance from the second circular arc guide groove 12 to the center of the annular boss 10; the lower surface of the lower rotating ring 4 is correspondingly provided with two convex bone strips 41, and the two convex bone strips 41 are located on two different circumferences of the lower surface of the lower rotating ring 4.

[0058] By adopting the above structure, the two convex bone strips 41 cooperate with the two circular arc guide grooves, so that the opposite sides of the rotating ring rise and sink at the same time, thereby realizing the horizontal state of the rotating ring during movement, being more stable and having better cutting effect; and the first circular arc guide groove 11 and the second circular arc guide groove 12 are staggered, which can ensure that the rotating ring only changes the height at the initial position, avoiding the sinking of the blade 5 into the groove after rotating half a circle, so that the above structure not only improves the stability of the rotating ring, but also ensures that the blade 5 can continuously run and cut the sealing film on the table.

[0059] As shown in Figure 4As shown in the present application, a top cover 2 is further included, the middle part of the top cover 2 is provided with a hollow opening, which is aligned with the hollow opening of the base 1, and the hollow opening of the top cover 2 is provided with an L-shaped clamping groove 21 for mounting the capsule box 7; when the capsule box 7 is mounted, the notch 13 at the edge of the capsule box 7 is put into the L-shaped clamping groove 21, and then screwed, clamping the L-shaped clamping groove 21, so as to fix the capsule box 7 on the top cover 2, preventing the capsule box 7 from rotating during the film breaking process of the blade 5, and affecting the film breaking effect.

[0060] As shown in the present application, a top cover 2 is further included, the middle part of the top cover 2 is provided with a hollow opening, which is aligned with the hollow opening of the base 1, and the hollow opening of the top cover 2 is provided with an L-shaped clamping groove 21 for mounting the capsule box 7; when the capsule box 7 is mounted, the notch 13 at the edge of the capsule box 7 is put into the L-shaped clamping groove 21, and then screwed, clamping the L-shaped clamping groove 21, so as to fix the capsule box 7 on the top cover 2, preventing the capsule box 7 from rotating during the film breaking process of the blade 5, and affecting the film breaking effect. Figure 5 As shown in the present application, the lower surface of the upper rotating ring 3 is provided with a circular convex ring 31, and the upper surface of the lower rotating ring 4 is provided with a corresponding circular groove 42, the circular convex ring 31 is inserted into the circular groove 42 and can rotate in the circular groove 42.

[0061] In a preferred embodiment, the lower surface of the upper rotating ring 3 is further provided with a lower convex ring 32, and the upper surface of the lower rotating ring 4 is correspondingly provided with an upper convex ring 43, the upper convex ring 43 is in contact with the lower convex ring 32, so that the teeth of the upper rotating ring 3 and the teeth of the lower rotating ring 4 leave a gap, reducing the contact area of the two rotating rings, further reducing friction, making the resistance of the two rotating rings rotating in opposite directions smaller, and reducing power consumption to a certain extent.

[0062] Embodiment two

[0063] As shown in the present application, a top cover 2 is further included, the middle part of the top cover 2 is provided with a hollow opening, which is aligned with the hollow opening of the base 1, and the hollow opening of the top cover 2 is provided with an L-shaped clamping groove 21 for mounting the capsule box 7; when the capsule box 7 is mounted, the notch 13 at the edge of the capsule box 7 is put into the L-shaped clamping groove 21, and then screwed, clamping the L-shaped clamping groove 21, so as to fix the capsule box 7 on the top cover 2, preventing the capsule box 7 from rotating during the film breaking process of the blade 5, and affecting the film breaking effect. Figure 3 As shown in the present application, a top cover 2 is further included, the middle part of the top cover 2 is provided with a hollow opening, which is aligned with the hollow opening of the base 1, and the hollow opening of the top cover 2 is provided with an L-shaped clamping groove 21 for mounting the capsule box 7; when the capsule box 7 is mounted, the notch 13 at the edge of the capsule box 7 is put into the L-shaped clamping groove 21, and then screwed, clamping the L-shaped clamping groove 21, so as to fix the capsule box 7 on the top cover 2, preventing the capsule box 7 from rotating during the film breaking process of the blade 5, and affecting the film breaking effect.

[0064] In this embodiment, the gear transmission mechanism 6 further includes two long gears (first long gear 63 and second long gear 64), the lower gear 62, the first long gear 63, the second long gear 64 and the upper gear 61 are sequentially engaged, and the output gear is engaged with the lower gear 62. By adopting this structure, the power of the driving motor is transmitted to the lower gear 62 through the output gear, assuming that the lower gear 62 rotates forward, then the first long gear 63 rotates backward, the second long gear 64 rotates forward, and the upper gear 61 rotates backward, so that the lower rotating ring 4 rotates backward and the upper rotating ring 3 rotates forward. It can be seen that the gear transmission mechanism 6 of the present embodiment only needs to add two long gears between the upper gear 61 and the lower gear 62, so as to realize the reverse rotation of the upper gear 61 and the lower gear 62 driven by one driving motor, thereby realizing the reverse rotation of the two rotating rings.

[0065] like Figure 1 and Figure 7 As shown, in this embodiment, the base 1 is provided with a notch 13, which is used to expose the lower gear 62. Multiple gear shaft seats 14 are provided on the side of the notch 13. Only the notch 13 of the base 1 exposes the lower gear 62 that needs to be meshed, while the other gears are well protected. The gear installation method is simple and easy to operate. The gear shaft is simply inserted into the gear shaft seat 14.

[0066] Example 3

[0067] like Figure 8 As shown, a double-bayonet capsule puncture assembly further includes a drive motor and a gear transmission mechanism 6. The gear transmission mechanism in this embodiment differs from that in Embodiment 2. The gear transmission mechanism 6 includes two gears, a lower gear 62 and an upper gear 61, rotating in opposite directions. The lower gear 62 meshes with the lower rotating ring 4; the upper gear 61 meshes with both the lower gear 62 and the upper rotating ring 3. Specifically, the upper gear 61 has a convex cross-section, including a large gear 65 and a small gear 66. The small gear 66 meshes with the lower gear 62, and the large gear 65 meshes with the upper rotating ring 3. When the lower gear 62 rotates clockwise, the lower rotating ring 4 rotates counterclockwise; at this time, the upper gear 61 rotates counterclockwise under the action of the lower gear 62, and the upper rotating ring 3 rotates clockwise.

[0068] Example 4

[0069] like Figure 4 and Figure 5 As shown, a double-bayonet capsule puncture assembly is similar in structure to Embodiment 1, except that it also includes a top cover 2 and a base 1 that are fastened together, and two rotating rings are located between the top cover 2 and the base 1; the upper surface of the upper rotating ring 3 is evenly provided with a plurality of spring keys 33, and the spring keys 33 abut against the top cover 2.

[0070] In this embodiment, the spring key 33 includes a spring cap and a spring located inside the spring cap. A ball bearing is provided on the top of the spring cap. One end of the spring is connected to the ball bearing, and the other end is connected to the rotating ring 3. The ball bearing contacts the lower surface of the top cover 2. When the rotating ring rises, it compresses several spring keys 33, generating a downward force on the rotating ring. When the convex rib 41 of the lower rotating ring 4 rotates to the arc guide groove, the two rotating rings can sink quickly and stably under the elastic force of the spring keys 33, thus preventing the blade 5 from getting stuck and unable to retract into the top cover 2, which could cause a safety hazard.

[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A double-bayonet capsule puncture assembly, comprising a base, the base having an annular boss for placing a rotating ring, the surface of the annular boss having an arc-shaped guide groove, characterized in that, It also includes two upper and lower rotating rings that are stacked on top of each other and rotatably connected. The two rotating rings rotate in opposite directions. Each of the inner walls of the two rotating rings is provided with a blade, and the two blades overlap each other. Each of the two blades runs one revolution under the drive of the corresponding rotating ring. The lower surface of the lower rotating ring is provided with a protruding rib that is adapted to the arc guide groove. When the protruding rib moves out of the arc guide groove as the lower rotating ring rotates, the two rotating rings move upward at the same time and drive the two blades to pierce upward; when the protruding rib moves into the arc guide groove, the two rotating rings sink downward at the same time and drive the two blades to descend. The annular boss has two arc-shaped guide grooves on opposite sides, including a first arc-shaped guide groove and a second arc-shaped guide groove. The first arc-shaped guide groove is located on the inner edge circle of the annular boss, and the second arc-shaped guide groove is located on the outer edge circle of the annular boss.

2. The double-bayonet capsule puncture assembly according to claim 1, characterized in that, It also includes a drive motor and a gear transmission mechanism. The gear transmission mechanism includes two gears, a lower gear and an upper gear, that rotate in opposite directions. The lower gear meshes with the lower rotating ring, and the upper gear meshes with the upper rotating ring. The output gear of the drive motor meshes with one of the gears in the gear transmission mechanism.

3. The double-bayonet capsule puncture assembly according to claim 2, characterized in that, The gear transmission mechanism also includes two long rack gears, the lower gear, the first long rack gear, the second long rack gear, and the upper gear are sequentially meshed and connected, and the output gear is meshed and connected with the lower gear.

4. The double-bayonet capsule puncture assembly according to claim 3, characterized in that, The base has a notch for exposing the lower gear, and multiple gear shaft seats are provided on the side of the notch.

5. The double-bayonet capsule puncture assembly according to claim 2, characterized in that, The upper gear has a convex cross-section and includes a large gear and a small gear that rotate coaxially. The large gear meshes with the upper rotating ring, and the small gear meshes with the lower gear.

6. The double-bayonet capsule puncture assembly according to claim 1, characterized in that, It also includes a top cover, which is fastened to the base, and two rotating rings are located between the top cover and the base; the upper surface of the upper rotating ring is evenly provided with a plurality of spring keys, which abut against the top cover.

7. The double-bayonet capsule puncture assembly according to claim 6, characterized in that, The spring key includes a spring cap and a spring located inside the spring cap. The top of the spring cap is provided with a ball bearing. One end of the spring is connected to the ball bearing, and the other end is connected to the upper rotating ring. The ball bearing contacts the lower surface of the top cover.

8. The double-bayonet capsule puncture assembly according to claim 1, characterized in that, The lower surface of the upper rotating ring is provided with a circular protrusion, and the upper surface of the lower rotating ring is provided with a corresponding circular groove. The circular protrusion is inserted into the circular groove and rotates within the circular groove.

9. The double-bayonet capsule puncture assembly according to claim 8, characterized in that, The lower surface of the upper rotating ring is also provided with a lower convex ring, and the upper surface of the lower rotating ring is provided with a corresponding upper convex ring. The upper convex ring and the lower convex ring are in contact and connected, so that there is a gap between the teeth of the upper rotating ring and the teeth of the lower rotating ring.

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