Feeding assembly of roll printing machine

Abstract

The utility model discloses a feeding assembly of a roll printing machine, a feeding disc of a feeding plastic part is provided with a first kind of clamping grooves and a second kind of clamping grooves which are used for conveying needle tubes at equal intervals, and one kind of clamping grooves is used in one-time production. And the working disc is also correspondingly provided with a first type of fixing grooves matched with the first type of clamping grooves and a second type of fixing grooves matched with the second type of clamping grooves. In the production process, the switching speed of the first type of clamping grooves and the second type of clamping grooves is high, switching is convenient, the production efficiency is considerable, the response speed of small-batch orders is high, and rapid production can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of syringe roller printing equipment, in particular to a feeding component of a roller printing machine. Background Art

[0002] Syringes are a basic medical device with high consumption. They are the most basic and indispensable medical device in the medical industry. However, in different applications, the required capacity of the syringe is different. At present, for the production of syringes of different capacities, either several different sets of equipment are used to produce syringes of different capacities; or certain components need to be disassembled and replaced with different components to produce syringes of different capacities. Both methods require the additional preparation of equipment or instruments of different specifications, which is costly and affects production speed. When facing orders with larger batches, this method has little impact on production efficiency. However, when facing multi-batch, small-scale production orders with different syringe capacities, the use of these two methods will greatly reduce production efficiency.

[0003] For example, in the "A roller printing machine for syringe barrels" disclosed in announcement number CN117548259A, one device can only produce barrels for one type of syringe, which is very inconvenient for the production of barrels for syringes of various specifications. It is difficult to respond quickly to production orders for small batches of syringes, the preparation time before production is long, and the completion speed is slow. Utility Model Content

[0004] In response to the deficiencies in the prior art, the present utility model provides a feed assembly for a roller printing machine. The feed tray of the roller printing machine is provided with syringe slots for two capacities, one of which is used during production. Correspondingly, there are also syringe slots for two capacities on the working tray that cooperate with the slots on the feed tray. When it is necessary to produce a syringe of another capacity, it is only necessary to rotate the feed tray, align the slot of the other capacity with the hole of the limiting tray below, and then fix the feed tray. After simple debugging, the slot of the capacity on the feed tray can be aligned with the slot of the capacity on the working tray to produce syringes of another capacity. The adjustment speed is fast, the production efficiency is considerable, the response speed for small batch orders is fast, and production can be rapid.

[0005] The utility model achieves the above technical objectives through the following technical means.

[0006] A feeding assembly of a roller printing machine is provided. A plurality of first-type card slots are arranged at equal arc intervals on a feeding tray of the roller printing machine, and a plurality of second-type card slots are arranged between two first-type card slots.

[0007] The first type of card slots and the second type of card slots are distributed at the boundary position of the feed tray, and the arcs of the intervals between adjacent first type of card slots and adjacent second type of card slots are the same.

[0008] The first type of card slot and the second type of card slot are both provided with a buffer section and a limit section.

[0009] Furthermore, a first type buffer surface is provided on one side of the first type slot.

[0010] Any of the first-type buffer surfaces has the same included angle with a tangent line on the feed tray at a connection point with the first-type buffer surface.

[0011] Furthermore, a second type of buffer surface is provided on one side of the second type of slot.

[0012] Any of the second-type buffer surfaces has the same included angle with a tangent line on the feed tray at a connection point with the second-type buffer surface.

[0013] Furthermore, a first type of transition portion is provided on the other side of the first type of slot, and the first type of transition portion is composed of a plane and an arc surface tangent to the plane.

[0014] A second type transition portion is provided on the other side of the second type slot, and the second type transition portion is composed of a plane and an arc surface tangent to the plane.

[0015] Furthermore, a plurality of rotating grooves are arranged at equal arc intervals on the feed tray, and the rotating grooves are in the shape of arc-shaped waist holes. A feed tray mounting hole is provided at the center of the feed tray.

[0016] Furthermore, the angle between the first type buffer surface and a tangent line on the feed tray at a connection with the first type buffer surface ranges from 20° to 40°.

[0017] Furthermore, the angle between the second type buffer surface and a tangent line on the feed tray at a connection with the second type buffer surface ranges from 10° to 30°.

[0018] Furthermore, the first type of slot is composed of a first type of arc surface splicing buffer section and a limiting section.

[0019] The second type of slot is composed of a second type of arc surface splicing buffer section and a limiting section.

[0020] Furthermore, the feed tray is tangent to the working tray.

[0021] The first type of clamping grooves on the feed tray cooperate with the first type of fixing grooves provided on the working tray, and the second type of clamping grooves cooperate with the second type of fixing grooves provided on the working tray.

[0022] The utility model has the following gain effects:

[0023] The feed tray of this roller printing machine is equipped with slots for syringes of two different capacities, one of which is used during production. Corresponding slots for syringes of two different capacities are also located on the work tray, matching the slots on the feed tray. To produce a syringe of a different capacity, simply rotate the feed tray, aligning the slot for the different capacity with the hole in the stopper plate below, and then secure the feed tray. With simple adjustments, the slot for the desired capacity on the feed tray can be aligned with the slot for the desired capacity on the work tray, allowing for the production of the desired syringe. Adjustment is fast, production efficiency is high, and response time for small batch orders is fast, enabling rapid production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the assembly of the feed tray and the working tray of the utility model.

[0025] Figure 2 This is a schematic structural diagram of the feed tray of the present invention.

[0026] Figure 3 For the utility model Figure 1 A partial enlarged view of point A in the middle.

[0027] In the figure, 1-feeding tray, 11-first type of card slot, 111-first type of arc surface, 112-first type of buffer surface, 113-first type of limiting section, 12-second type of card slot, 121-second type of buffer surface, 122-second type of arc surface, 123-second type of limiting section, 13-rotating groove, 14-mounting hole, 2-working disk, 21-second type of fixed slot, 211-second type of arc segment, 212-second type of transition section, 22-first type of fixed slot, 221-first type of arc segment, 222-first type of transition section, 3-needle tube limiting hole, 4-feeding limiting plate, 5-rolling assembly, 6-discharge port. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0029] Example:

[0030] like Figures 1 to 3 As shown, the present invention relates to syringe production equipment. In the figure, a smaller circular disc, the feed disc 1, and a larger circular disc, the working disc 2, work in conjunction with the feed disc 1. During operation, the feed disc 1 and the working disc 2 work together to deliver syringes to the roller printing area. After roller printing is completed, the syringes are transported to the next process via the working disc 2.

[0031] The feed plate 1 is generally disc-shaped, with a circular mounting hole 14 at its center, which serves as a position limiter for the feed plate 1. The feed plate 1 does not need to be fixed by the mounting hole 14. The feed plate 1 of the present invention can transport syringe materials of various specifications, and only needs to be rotated around the mounting hole 14 to adjust the size of the material it can transport.

[0032] Six arc-shaped waist holes, or rotating slots 13, are provided at equal intervals on the feed tray 1. Bolts are provided on the rotating slots 13 to secure the feed tray 1. The arc length of the rotating slots 13 is the range within which the feed tray 1 can rotate. At the two end arcs of a rotating slot 13, the line connecting the center of the side arc and the center of the feed tray 1 just passes through the center of one slot. At the same rotating slot 13, the line connecting the center of the other side arc and the center of the feed tray 1 passes through the center of the slot adjacent to the previous slot. Therefore, when the feed tray 1 is rotated to one end of the rotating slot 13 and fixed, it can transport needles of one size; when it is rotated to the other end of the rotating slot 13 and fixed, it can transport needles of another size.

[0033] The outer ring of the feed plate 1 is equipped with 12 semicircular grooves of varying sizes, with equal arc spacing between each groove. The grooves on the feed plate 1 come in two sizes. For ease of illustration, the larger grooves are used to secure 20ml syringes, while the smaller grooves are used to secure 5ml syringes.

[0034] Because syringes vary in size, larger syringes cannot fit into smaller slots. While smaller syringes can fit into larger slots, the size difference between the syringes and the slots is too large. Consequently, smaller syringes cannot be hung on the upper plate of the slots. Therefore, during the production process, a single size slot must be selected and used to transport syringes of the corresponding capacity during the entire production batch.

[0035] The more slot types a disk has, the lower the production speed. A trade-off between production speed and flexibility is necessary. A disk with only one slot type undoubtedly achieves the highest production speed, but also minimizes production flexibility. However, a larger number of slot types limits production to the specific slot type. If too many slots are used, the number of syringes delivered per rotation is limited to the number of slots configured. This reduces the number of syringes delivered per rotation, indirectly impacting production speed. A balance must be found in the number of slots on the disk.

[0036] Therefore, in this example, the number of slot types is selected to be two. On the one hand, although there are more slot types, the number of slots that can be used during operation is only 1 / 2 of the total number of slots, so the total number of slots on the disk can be appropriately increased to improve the working speed to a certain extent.

[0037] In this embodiment, the slots on the feed tray 1 for transporting 20ml syringes are first-type slots 11. These slots 11 are a spliced structure composed of three distinct planar segments. The first-type buffer surface 112 is the planar segment responsible for initial contact with and guidance of the 20ml syringe. This buffer surface 112 allows the 20ml syringe to eventually disengage from the first-type slot 11 and be transferred to the holes in the work tray 2.

[0038] The first type of buffer surface 112 starts from a point on the edge of the outer ring of the feed tray 1. Starting from this point, a slope extends inward. Because during the rotation process, when the feed tray 1 rotates to the position matched with the working tray 2, the 20ml syringe in the first type of slot 11 needs to be transferred to the slot at the corresponding position in the working tray 2. Because there is no need to use other tools or structures, the 20ml syringe needs to be thrown from the feed tray 1 to the corresponding slot on the working tray 2 at the matching position of the feed tray 1 and the working tray 2. The syringe needs to be able to easily detach from the first type of slot 11 and accurately enter the corresponding slot on the working tray 2.

[0039] from Figure 1 As can be seen in the figure, the roller printing component 5 is located on the left side of the working disk 2, and the discharge port 6 is opposite to the roller printing component 5 and is located on the right side of the working disk 2. Because the needle tube needs to be roller printed on the working disk 2 before it can enter the next process for subsequent processing. It can be inferred that Figure 1 The middle working disk 2 rotates clockwise, and the needle tube is transferred from the feed disk 1 to the working disk 2 at the matching position. After rotating clockwise once, it reaches the position of the roller printing component 5 and the discharge port 6, and leaves from the discharge port 6 to enter the next process. The working disk 2 rotates clockwise.

[0040] During the transfer of the needles from the feed tray 1 to the work tray 2, in order to ensure that the needles have sufficient time to transfer from the feed tray 1 to the work tray 2, the rotation of the feed tray 1 and the work tray 2 must be kept approximately synchronized at the joint. This allows the corresponding first-type slots 11 to be aligned with the corresponding slots on the work tray 2. Therefore, the rotation direction and linear speed of the feed tray 1 and the work tray 2 can be considered to be approximately the same.

[0041] Therefore, when the working disk 2 rotates clockwise, the feed disk 2 should also rotate counterclockwise. Because the feed disk 1 and the working disk 2 rotate at relatively high speeds during production, there's no mechanism within the slots on the disks to secure the needles within them. Therefore, it's necessary to install matching guardrails at the locations where the feed disk 1 and the working disk 2 transport and place the needles, restricting their outward movement. However, no guardrails are installed at the locations where the feed disk 1 and the working disk 2 work together, or at subsequent locations where the feed disk 1 is placed.

[0042] When the first type of slots 11 on the feed tray 1 rotate to this position, the needle tubes in the first type of slots 11 have been transferred to the slots on the working tray 2. There are no needle tubes in the first type of slots 11 that need to be transported, and there is no need to use guardrails to restrict the movement of the needle tubes, so that the needle tubes are stuck in the first type of slots 11. There is a certain gap between the feed tray 1 and the guardrails because there is no contact between the guardrails and the feed tray 1, and the gap between the feed tray 1 and the guardrails cannot be too large to prevent the needle tubes from escaping from the first type of curved surface 111 of the first type of slots 11.

[0043] Because feed tray 1 rotates rapidly, the needles in the first slots 11 tend to move linearly along the tangent of feed tray 1 due to inertia. However, the barrier prevents the needles from remaining within the first slots 11. Once feed tray 1 rotates to its mating position with work tray 2, the barrier is removed. Production requires that the needles be able to pass from the first slots 11 on feed tray 1 into the corresponding slots on work tray 2.

[0044] If both sides of the first type of slot 11 are the first type of limiting sections 113, the direction of the linear movement of the needle tube is perpendicular to the first type of limiting sections 113. Even if the needle tube detaches from the first type of slot 11, it may not be able to smoothly enter the slot of the working disk 2 due to excessive loss of kinetic energy during the collision, and the reliability of the equipment will be poor.

[0045] Therefore, a first-type buffer surface 112 is provided on one side of the first-type clamping groove 11 in the linear motion direction of the needle tube. One end of the first-type buffer surface 112 contacts the first-type arc surface 111 of the first-type clamping groove 11, and the other end contacts the outer circumference of the feed tray 1. The first-type arc surface 111 is semicircular, and the angle between the tangent line at the connection between the first-type buffer surface 112 and the feed tray 1 and the first-type buffer surface 112 ranges from 20° to 40°, preferably from 20° to 30°. In this embodiment, the angle between the first-type buffer surface 112 and the tangent line is 20°.

[0046] The larger the angle, the greater the inclination of the first-type buffer surface 112, and the smaller the velocity component of the needle on the first-type buffer surface 112, making it more difficult for the needle to land accurately on the work disk 2. The first-type buffer surface 112 needs to be relatively smooth to increase the velocity component of the needle on the first-type buffer surface 112. This allows the needle to swing accurately from the first-type clamping slot 11 on the feed disk to the first-type fixing slot 22 on the work disk 2 during the mating process between the feed disk 1 and the work disk 2.

[0047] The slots on the feed tray 1 for transporting 5ml syringes are second-type slots 12. Similar to the first-type slots 11, second-type slots 12 also feature a spliced structure, composed of three distinct planar segments. The planar segment in second-type slots 12 that initially contacts and guides the 5ml syringe is the second-type buffer surface 121. This second-type buffer surface 121 allows the 5ml syringe to eventually escape from the second-type slot 12 and be transferred to the wells in the work tray 2.

[0048] The second type of buffer surface 121 starts from a point on the edge of the outer ring of the feed tray 1. Starting from this point, a slope extends inward. Because during the rotation process, when the feed tray 1 rotates to the position matched with the working tray 2, the 5ml syringe in the second type of slot 12 needs to be transferred to the slot at the corresponding position in the working tray 2. Because there is no need to use other tools or structures, the 5ml syringe needs to be thrown from the feed tray 1 to the corresponding slot on the working tray 2 at the matching position of the feed tray 1 and the working tray 2. The syringe needs to be able to easily detach from the second type of slot 12 and accurately enter the corresponding slot on the working tray 2.

[0049] When the second type of slots 12 on the feed tray 1 rotate to this position, the needles in the second type of slots 12 have been transferred to the slots on the working tray 2. There are no needles in the second type of slots 12 that need to be transported, and there is no need to use guardrails to restrict the movement of the needles, so that the needles are stuck in the second type of slots 12. There is a certain gap between the feed tray 1 and the guardrails because there is no contact between the guardrails and the feed tray 1, and the gap between the feed tray 1 and the guardrails cannot be too large to prevent the needles from escaping from the second type of curved surface 122 of the second type of slots 12.

[0050] Because the feed tray 1 rotates very quickly, the needles in the second slots 12 tend to move linearly along the tangent of the feed tray 1 due to inertia. However, the barrier prevents the needles from remaining in the second slots 12. When the feed tray 1 rotates to its mating position with the work tray 2, the barrier is removed. During production, it is necessary for the needles to be able to pass from the second slots 12 on the feed tray 1 into the corresponding slots on the work tray 2.

[0051] If both sides of the second-type slot 12 are second-type limiting sections 123, the direction of the linear movement of the needle tube is perpendicular to the second-type limiting section 123. Even if the needle tube detaches from the second-type slot 12, it may not be able to smoothly enter the slot of the working disk 2 due to excessive loss of kinetic energy during the collision, and the reliability of the equipment will be poor.

[0052] Therefore, a second-type buffer surface 121 is provided on one side of the second-type clamping groove 12 in the linear motion direction of the needle tube. One end of the second-type buffer surface 121 contacts the second-type arc surface 122 of the second-type clamping groove 12, and the other end contacts the outer circumference of the feed tray 1. The second-type arc surface 122 is semicircular, and the angle between the tangent line at the connection between the second-type buffer surface 121 and the feed tray 1 and the second-type buffer surface 121 ranges from 10° to 30°, preferably from 10° to 20°. In this embodiment, the angle between the second-type buffer surface 121 and the tangent line is 10°.

[0053] Because the first and second curved surfaces 111, 122 have different diameters, they connect to the first and second buffer surfaces 112, 121 at different locations on the feed tray 1. The second-type slots 12 are closer to the edge of the feed tray 1, so the second curved surfaces 122 and 121 connect closer together. Furthermore, the tangent projections of the first and second buffer surfaces 112, 121 are the same length. Therefore, the second buffer surface 121 has a smaller inclination than the first buffer surface 112.

[0054] The larger the angle, the greater the inclination of the second-type buffer surface 121, and the smaller the velocity component of the needle on the second-type buffer surface 121, making it more difficult for the needle to land accurately on the work disk 2. The second-type buffer surface 121 needs to be relatively smooth to increase the velocity component of the needle on the second-type buffer surface 121. This allows the needle to swing accurately from the second-type clamping slot 12 on the feed disk to the second-type fixing slot 21 on the work disk 2 during the mating process between the feed disk 1 and the work disk 2.

[0055] like Figure 3 As shown, at the joint of the feed tray 1 and the working tray 2, the working tray 2 is also provided with a first type of fixed slot 22 and a second type of fixed slot 21 corresponding to the first type of slot 11 and the second type of slot 12 provided on the feed tray 1. A feed limit plate 4 is placed below the slots of the feed tray 1 that are not used for production. The feed limit plate 4 is provided with six slots for 20ml syringes, which is 1 / 2 of the number of slots of the feed tray 1. The distribution of the slots on the feed limit plate 4 is the same as the distribution pattern and spacing of the first type of slots 11 on the feed tray 1. The feed limit plate 4 closes the slots of one size on the feed tray 1 by default. After the feed tray 1 is rotated from one end of the rotating slot 13 to the other end, the feed limit plate 4 remains stationary and thus automatically closes the slots of another size.

[0056] A first-class arc segment 221 is located at the center of the first-class fixing groove 22 on the work disk 2. Two first-class transition segments 222 are connected on either side of the first-class arc segment 221. The first-class transition segments 222 consist of a straight line and a quarter-circle arc tangent to the straight line. The other end of the arc is also tangent to the work disk 2. An arc-shaped needle retaining hole 3 is located below and near the center of the first-class fixing groove 22. This serves to further retain the needle after it is transferred from the feed disk 1 to the work disk 2 and maintain its linearity, ensuring that the pattern subsequently printed on the needle is straight and does not shift.

[0057] A second-type arc segment 211 is located at the center of the second-type fixing groove 21 on the work disk 2. Two second-type transition segments 212 are connected on either side of the second-type arc segment 211. The second-type transition segment 212 consists of a straight line and a quarter-circle arc tangent to the straight line. The other end of the arc is also tangent to the work disk 2. An arc-shaped needle tube retaining hole 3 is located below and near the center of the second-type fixing groove 21.

[0058] When the feed assembly starts working, after selecting the size of the needle tube to be produced. First, let the feed disc 1 and the working disc 2 slowly start to rotate, so that the feed disc 1 and the working disc 2 can make the first type of slot 11 correspond to the first type of fixed slot 22 at the matching position, and the second type of slot 12 can correspond to the second type of fixed slot 21. After debugging is completed, start to let the needle tubes of corresponding sizes be transported to the corresponding slots on the feed disc 1 in turn. The unmatched slots are covered by the feed limit plate 4, and no needle tubes will enter. Then, as the slots with needle tubes on the feed disc 1 rotate to the position where the feed disc 1 and the working disc 2 match.

[0059] When rotating to this point, the needle tube in the slot slides into the corresponding fixed groove on the working disk 2 along the buffer surface under the action of inertia because there is no barrier to block it. At the same time, the needle tip of the needle tube is stuck in the needle tube limiting hole 3. Finally, as the working disk 2 rotates, the needle tube will be rolled onto the pattern through the rolling assembly 5 and then transported to the discharge port 6 to enter the next process.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A feeding assembly of a roller printing machine, characterized in that: A plurality of first-type card slots (11) are provided on the feed tray (1) of the roller printing machine at equal arc intervals, and a plurality of second-type card slots (12) are provided between the first-type card slots (11); The first type of card slots (11) and the second type of card slots (12) are distributed at the boundary position of the feed tray (1), and the arcs of the intervals between adjacent first type of card slots (11) and second type of card slots (12) are the same; The first type of card slot (11) and the second type of card slot (12) are both provided with a buffer section and a limit section.

2. The feeding assembly of the roller printing machine according to claim 1, characterized in that: A first-type buffer surface (112) is provided on one side of the first-type card slot (11); Any of the first-type buffer surfaces (112) has the same included angle with a tangent line on the feed tray (1) at a connection point with the first-type buffer surface (112).

3. The feeding assembly of the roller printing machine according to claim 2, characterized in that: A second type buffer surface (121) is provided on one side of the second type slot (12); Any of the second-type buffer surfaces (121) has the same included angle with a tangent line on the feed tray (1) at a connection point with the second-type buffer surface (121).

4. The feeding assembly of the roller printing machine according to claim 3, characterized in that: A first-type transition portion (113) is provided on the other side of the first-type slot (11), and the first-type transition portion (113) is composed of a plane and an arc surface tangent to the plane; A second-type transition portion (123) is provided on the other side of the second-type slot (12), and the second-type transition portion (123) is composed of a plane and an arc surface tangent to the plane.

5. The roller printing machine feeding assembly according to claim 1, 2, 3 or 4, characterized in that: A plurality of rotating grooves (13) are arranged at equal arc intervals on the feed tray (1), and the rotating grooves (13) are in the shape of arc-shaped waist holes. A feed tray mounting hole (14) is provided at the center of the feed tray (1).

6. The feeding assembly of the roller printing machine according to claim 2, characterized in that: The angle between the first type buffer surface (112) and a tangent line on the feed tray (1) at a connection point with the first type buffer surface (112) ranges from 20° to 40°.

7. The feeding assembly of the roller printing machine according to claim 3, characterized in that: The angle between the second type buffer surface (121) and a tangent line on the feed tray (1) at a connection point with the second type buffer surface (121) ranges from 10° to 30°.

8. The roller printing machine feeding assembly according to claim 1 or 2 or 3 or 4 or 6 or 7, characterized in that: The first type of slot (11) is composed of a first type of arc surface (111) spliced with a buffer section and a limit section; The second type of slot (12) is composed of a second type of arc surface (122) spliced with a buffer section and a limiting section.

9. The roller printing machine feeding assembly according to claim 1 or 2 or 3 or 4 or 6 or 7, characterized in that: The feed disc (1) is tangent to the working disc (2); The first type of clamping groove (11) on the feed tray (1) cooperates with the first type of fixing groove (22) provided on the working tray (2), and the second type of clamping groove (12) cooperates with the second type of fixing groove (21) provided on the working tray (2).

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