Capsule forming device

Abstract

The utility model discloses a capsule forming device which comprises two forming compression rollers which are symmetrically arranged and rotate in opposite directions and a liquid injection gun arranged above a pressing seam of the two forming compression rollers, and further comprises a driving assembly which is arranged on the two forming compression rollers and is used for driving the liquid injection gun to rotate, and the liquid injection gun is arranged above the pressing seam of the two forming compression rollers, and a plurality of forming grooves are uniformly formed in the outer walls of the forming compression rollers. The driving mechanism is used for driving the two forming compression rollers to rotate oppositely; the rotating shaft penetrates through the whole forming compression roller in the axial direction of the forming compression roller and serves as a rotating shaft of the forming compression roller, and the two ends of the rotating shaft are fixedly arranged on the support; the cams are uniformly distributed and fixedly arranged on the rotating shaft, and the protruding ends of the cams face the lower portion of the forming pressing roller; and the elastic jacking and pressing assemblies are evenly distributed and arranged in an inner cavity of the forming pressing roller in a surrounding mode, abut against the cam and are used for jacking out the capsules adhering to the forming groove. According to the utility model, air cannot be introduced when the sticky capsule is ejected out, so that dust in the air is prevented from accumulating in the forming compression roller and polluting the surface of the capsule.

Description

Technical Field

[0001] The utility model relates to the technical field of capsule forming, and particularly relates to a capsule forming device. Background Art

[0002] The rolling film type capsule forming machine is a device for producing soft capsules. It mainly forms the capsule shell on a mold with a specific shape after heating and softening the capsule material (usually gelatin).

[0003] An existing soft capsule forming device with the authorized announcement number CN 220089981 U includes two relatively arranged molds. There is an extrusion space for two rubber sheets to pass through between the two molds. A liquid injection gun for injecting liquid is arranged on the extrusion space. A number of grooves are arranged on each of the two molds, and the two grooves are buckled to form a complete soft capsule. Each mold is correspondingly provided with a pushing component for pushing the soft capsule away from the groove.

[0004] This device uses a thrust component composed of a blower and a connecting cylinder to solve the adhesion problem during the separation of the soft capsule from the mold. However, when the blower blows the soft capsule away from the mold, a large amount of dust in the air will also be brought into the inner cavity of the mold. After a certain period of accumulation, the dust is likely to accumulate in large quantities in the inner cavity of the mold and adhere to the outer surface of the capsule along with the air blown by the blower, affecting the production quality of the capsule.

[0005] Therefore, this application specifically proposes a capsule forming device to solve the above technical problems. Content of the Utility Model

[0006] The main purpose of the utility model is to solve the above deficiencies and provide a capsule forming device, which can reduce the impact on the production quality of the capsule while separating the capsule from the mold.

[0007] To solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A capsule forming device includes two symmetrically arranged and oppositely rotating forming pressure rollers and a liquid injection gun arranged above the pressing seam of the two forming pressure rollers. A plurality of forming grooves are evenly arranged on the outer wall of the forming pressure roller. The device further includes: a driving component arranged on the two forming pressure rollers for driving the two forming pressure rollers to rotate towards each other; a rotating shaft running through the whole forming pressure roller along the axis direction of the forming pressure roller and serving as its rotating shaft, with both ends of the rotating shaft fixedly arranged on a bracket; a plurality of cams evenly arranged and fixedly arranged on the rotating shaft, and the protruding ends facing the lower part of the forming pressure roller; and a plurality of elastic pressing components evenly arranged and surrounding the inner cavity of the forming pressure roller and abutting against the cams for ejecting the capsules adhered in the forming grooves.

[0009] Further, the elastic pressing component is composed of a plurality of pressing units connected end to end. Each pressing unit includes two guide rods symmetrically arranged on both sides of the forming groove in the inner cavity of the forming roller along the axis direction of the forming roller, a spring sleeved on the guide rod, a sliding member sleeved on the guide rod and abutting against the spring, a connecting rod fixedly arranged between the two sliding members, a ejector rod fixedly arranged on the connecting rod and facing the through hole in the forming groove, and a roller rotatably arranged on the connecting rod and abutting against the cam. Each ejector rod corresponds to one through hole.

[0010] Further, one end of the guide rod connected to the inner cavity of the forming roller is fixedly provided with a connecting arc block. A retaining ring for abutting against the spring is fixedly arranged on the guide rod. The other end of the guide rod is set as a threaded end, and a nut for abutting against the sliding member is threadedly connected to the threaded end.

[0011] Further, the sliding member adopts a linear bearing, and the maximum outer contour diameter of the threaded end of the guide rod is smaller than the diameter of the rest part.

[0012] Further, connecting ears are symmetrically arranged on the outer wall of the linear bearing. Plug blocks inserted into the connecting ears are fixedly arranged at both ends of the connecting rod, and the connecting ears and the plug blocks are fixedly connected through a pin shaft after being inserted.

[0013] Further, the driving component includes a synchronous gear fixedly arranged at one end of the forming roller, a motor, and a driving gear drivingly connected to the output end of the motor and meshing with one of the synchronous gears.

[0014] The beneficial effects of the present utility model are embodied in:

[0015] In the present utility model, a rotating shaft penetrates through the forming roller as its rotating shaft, a cam with a protruding part downward is arranged on the rotating shaft, and a plurality of elastic pressing components are arranged around the corresponding position of the forming groove in the inner cavity of the forming roller. When the elastic pressing component rotates to abut against the protruding part of the cam, the cam pushes the elastic pressing component to extend outwards and ejects the sticky capsule from the forming groove; when the elastic pressing component rotates to no longer abut against the protruding part of the cam, the elastic pressing component automatically resets under the action of elastic force. This solution will not introduce a large amount of air when ejecting the sticky capsule from the forming groove, preventing dust in the air from accumulating in the inner cavity of the forming roller and polluting the surface of the capsule. Description of the Drawings

[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1Schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of the overall structure of another perspective of an embodiment of the present utility model;

[0019] Figure 3 Schematic diagram of the internal structure of the forming roller of an embodiment of the present utility model;

[0020] Figure 4 Radial half-section schematic diagram of the forming roller of an embodiment of the present utility model;

[0021] Figure 5 Schematic diagram of the cooperation between the elastic pressing component and the cam of an embodiment of the present utility model;

[0022] Figure 6 Schematic diagram of the structure of the pressing unit of an embodiment of the present utility model;

[0023] Figure 7 Explosion schematic diagram of the pressing unit of an embodiment of the present utility model.

[0024] In the figure: 1, forming roller; 2, driving component; 21, synchronous gear; 22, motor; 23, driving gear; 3, rotating shaft; 4, bracket; 5, cam; 6, elastic pressing component; 61, guide rod; 611, connecting arc block; 612, retaining ring; 613, nut; 62, spring; 63, sliding part; 64, connecting rod; 65, ejector rod; 66, roller; 7, forming groove; 8, through hole; 9, connecting ear; 10, inserting block; 11, pin shaft; 12, liquid injection gun. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0026] Such as Figure 1-7As shown in the figure, the present utility model provides a capsule forming device, which includes two symmetrically arranged and oppositely rotating forming rollers 1 and a liquid injection gun 12 arranged above the pressing seam of the two forming rollers 1. A plurality of forming grooves 7 are evenly arranged on the outer wall of the forming roller 1. The device further includes: a driving component 2 arranged on the two forming rollers 1 for driving the two forming rollers 1 to rotate towards each other; a rotating shaft 3 penetrating the entire forming roller 1 along the axis direction of the forming roller 1 and serving as its rotating shaft, with both ends of the rotating shaft 3 fixedly arranged on a bracket 4; a plurality of cams 5 evenly arranged and fixedly arranged on the rotating shaft 3, and the protruding ends facing downwards of the forming roller 1; and a plurality of elastic pressing components 6 evenly arranged and surrounding the inner cavity of the forming roller 1 and abutting against the cams 5 for ejecting the capsules adhered in the forming grooves 7. The elastic pressing component 6 is composed of a plurality of top pressing units connected end to end. The top pressing unit includes two guide rods 61 symmetrically arranged on both sides of the forming groove 7 in the inner cavity of the forming roller 1 along the axis direction of the forming roller 1, a spring 62 sleeved on the guide rod 61, a sliding member 63 sleeved on the guide rod 61 and abutting against the spring 62, a connecting rod 64 fixedly arranged between the two sliding members 63, a top rod 65 fixedly arranged on the connecting rod 64 and facing the through hole 8 in the forming groove 7, and a roller 66 rotatably arranged on the connecting rod 64 and abutting against the cam 5. Each top rod 65 corresponds to a through hole 8.

[0027] During use, the driving component 2 drives the two forming rollers 1 to rotate towards each other around the rotating shaft 3, and two rubber sheets gradually pass through between the two forming rollers. Before the two rubber sheets are pressed together, the liquid injection gun 12 is used to inject liquid into the joint of the rubber sheets. The rubber sheets expand into the forming groove 7 under the pressure of the injected liquid. When a corresponding set of forming grooves 7 on the two forming rollers 1 are buckled and the rubber sheets are cut to form capsules, some soft capsules fall from the forming groove 7 under the action of gravity. For the capsules adhered in the forming groove 7, when the elastic pressing component 6 rotates to abut against the protruding part of the cam 5, the roller 66 drives the connecting rod 64 and the top rod 65 to slide outwards along the direction of the guide rod 61, so that the top rod 65 passes through the through hole 8 and ejects the adhered capsule from the forming groove 7. At this time, the spring 62 is compressed and contracted; when the elastic pressing component 6 rotates to no longer abut against the protruding part of the cam 5, the spring 62 pushes the sliding member 63 together with the top rod 65, the connecting rod 64 and the roller 66 to reset. The roller 66 still abuts against the cam 5, and the top rod 65 retracts. This solution will not introduce a large amount of air when ejecting the adhered capsules from the forming groove 7, preventing dust in the air from accumulating in the inner cavity of the forming roller 1 and contaminating the surface of the capsules.

[0028] In an embodiment, one end of the guide rod 61 connected to the inner cavity of the forming roller 1 is fixedly provided with a connecting arc block 611, a retaining ring 612 for abutting against the spring 62 is fixedly arranged on the guide rod 61, and the other end of the guide rod 61 is set as a threaded end, and a nut 613 for abutting against the sliding member 63 is threadedly connected to the threaded end.

[0029] With such a design, the connecting arc block 611 can be fitted to the inner cavity surface of the forming roller 1, enabling the guide rod 61 to be relatively stably arranged in the inner cavity of the forming roller 1. One end of the spring 62 abuts against the retaining ring 612, and the other end abuts against the sliding member 63. The nut 613 is screwed onto the threaded end of the guide rod 61 and abuts against the sliding member 63 to prevent the spring 62 from pushing the sliding member 63 away from the guide rod 61.

[0030] In one embodiment, the sliding member 63 is a linear bearing, and the maximum outer contour diameter of the threaded end of the guide rod 61 is smaller than the diameter of the rest of the part.

[0031] With such a design, the sliding of the sliding member 63 on the guide rod 61 is rolling friction, improving the smoothness of sliding; it is ensured that when inserting the linear bearing onto the guide rod 61, the threaded end of the guide rod 61 will not interfere with the balls of the linear bearing, resulting in its failure to be smoothly sleeved onto the guide rod 61.

[0032] In one embodiment, connecting ears 9 are symmetrically arranged on the outer wall of the linear bearing. Plug blocks 10 are fixedly arranged at both ends of the connecting rod 64 and are inserted and mated with the connecting ears 9. The connecting ears 9 and the plug blocks 10 are fixedly connected by a pin shaft 11.

[0033] In one embodiment, the driving assembly 2 includes a synchronous gear 21 fixedly arranged at one end of the forming roller 1, a motor 22, and a driving gear 23 drivingly connected to the output end of the motor 22 and meshing with one of the synchronous gears 21.

[0034] With such a design, the motor 22 drives the driving gear 23 to rotate. The driving gear 23 drives the synchronous gear 21 meshing with it to rotate. This synchronous gear 21 drives the other synchronous gear 21 to rotate towards each other. And the two synchronous gears 21 are respectively fixed on the two forming rollers 1, so that the two forming rollers 1 are driven by the two synchronous gears 21 to rotate synchronously and towards each other.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0037] In addition, "a plurality of" means more than two. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. A capsule forming device, comprising two symmetrically arranged and oppositely rotating forming rollers (1) and a liquid injection gun (12) arranged above the pressing seam of the two forming rollers (1). A plurality of forming grooves (7) are evenly arranged on the outer wall of the forming roller (1), and it is characterized in that, Further included are: A driving component (2), arranged on the two forming rollers (1) for driving the two forming rollers (1) to rotate towards each other; A rotating shaft (3), running through the whole forming roller (1) along the axis direction of the forming roller (1) and serving as its rotating shaft, with both ends of the rotating shaft (3) fixedly arranged on a bracket (4); A plurality of cams (5), evenly arranged and fixedly set on the rotating shaft (3), and the protruding ends facing the lower part of the forming roller (1); A plurality of elastic pressing components (6), evenly arranged and surrounding the inner cavity of the forming roller (1) and abutting against the cams (5) for ejecting the capsules adhered in the forming grooves (7).

2. The capsule forming device according to claim 1, characterized in that, The elastic pressing component (6) is composed of a plurality of pressing units connected end to end. Each pressing unit includes two guide rods (61) symmetrically arranged on both sides of the forming groove (7) in the inner cavity of the forming roller (1) along the axis direction of the forming roller (1), a spring (62) sleeved on the guide rod (61), a sliding member (63) sleeved on the guide rod (61) and abutting against the spring (62), a connecting rod (64) fixedly arranged between the two sliding members (63), a ejector rod (65) fixedly arranged on the connecting rod (64) and facing the through hole (8) in the forming groove (7), and a roller (66) rotatably arranged on the connecting rod (64) and abutting against the cam (5). Each ejector rod (65) corresponds to a through hole (8).

3. The capsule forming device according to claim 2, characterized in that, One end of the guide rod (61) connected to the inner cavity of the forming roller (1) is fixedly provided with a connecting arc block (611). A retaining ring (612) for abutting against the spring (62) is fixedly arranged on the guide rod (61). The other end of the guide rod (61) is set as a threaded end, and a nut (613) for abutting against the sliding member (63) is threadedly connected to the threaded end.

4. A capsule forming device according to claim 3, wherein, The sliding member (63) adopts a linear bearing, and the maximum outer contour diameter of the threaded end of the guide rod (61) is smaller than the diameter of the rest part.

5. A capsule forming device according to claim 4, characterized in that, Connecting ears (9) are symmetrically arranged on the outer wall of the linear bearing. Plug blocks (10) inserted with the connecting ears (9) are fixedly arranged at both ends of the connecting rod (64). The connection between the connecting ear (9) and the plug block (10) is fixedly connected through a pin shaft (11).

6. The capsule forming device according to claim 1, wherein, The driving component (2) includes a synchronous gear (21) fixedly arranged at one end of the forming roller (1), a motor (22), and a driving gear (23) drivingly connected to the output end of the motor (22) and meshing with one of the synchronous gears (21).

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