A linear reciprocating medicine cutting machine

Abstract

The present invention relates to the technical field of cutting devices, and specifically discloses a linear reciprocating medicine cutting machine, which includes a conveyor belt and a cutter assembly arranged above the conveyor belt. Guide chains are coaxially installed on both sides of the conveyor belt, and guide bars are fixedly installed on each link of the guide chains. A slot is formed between the two guide bars. The cutter assembly includes: two cutters, and guide blocks adapted to the slots are fixedly arranged at the front and rear ends of the cutters; two docking seats are respectively arranged at the front and rear ends of the cutters, and a limiting groove is formed in the docking seats. The width of the limiting groove in the left-right direction is equal to the sum of the widths of the guide bar and the two slots, and the limiting groove penetrates the bottom surface and the side close to the cutter of the docking seat; the cutter at the right end cuts into the medicinal material to a certain depth to fix the position of the medicinal material, and the cutter at the left end cuts off the medicinal material, thereby avoiding uneven thickness at both ends of the slice caused by the change of the position of the medicinal material during slicing.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting devices, and particularly relates to a linear reciprocating medicine cutter. Background Art

[0002] In traditional Chinese medicine, many raw material drugs need to be processed to exert their maximum medicinal properties. To improve the medicinal efficacy, many Chinese herbal medicine raw materials need to be cut into slices for subsequent processing. In particular, some rod-shaped drugs are often cut into slices, and the machine used for slicing is called a traditional Chinese medicine slicer. In traditional slicers, the medicinal materials are placed on a conveying device, and the slicing mechanism is fixed. The medicinal materials are transported towards the slicing mechanism through the conveying device, thereby realizing the slicing operation.

[0003] The Chinese patent document with the authorization announcement number CN105751271B discloses a medicinal material slicer. It solves the technical problems such as unreasonable design in the prior art. The medicinal material slicer includes a frame and a medicinal material slicing mechanism arranged at one end of the frame. A feeding platform is provided at the feeding end of the medicinal material slicing mechanism, and a feeding groove with one end communicating with the medicinal material slicing mechanism is opened on the feeding platform. A discharging hopper is provided at the discharging end of the medicinal material slicing mechanism. The medicinal material slicing mechanism includes a cutter capable of reciprocating up and down in the vertical direction for slicing medicinal materials. The cutter is detachably installed on a tool holder, and the tool holder is connected to a driving mechanism capable of driving the tool holder to vertically lift.

[0004] During the slicing process of the existing slicer, due to the differences in the sizes and irregular shapes of the medicinal materials, it is inconvenient to fix them. After the cutter drops and cuts a slice from the medicinal material, the conveying device transports the medicinal material forward for a certain distance. When the cutter is about to drop again for slicing, since the medicinal material is not fixed, the position of the medicinal material may change. After the cutter drops again for slicing, the thicknesses of both ends of the cut slice are uneven. Summary of the Invention

[0005] The present invention provides a linear reciprocating medicine cutter, aiming to solve the problem that the position of the medicinal material changes during slicing, resulting in uneven thicknesses at both ends of the slice in the related art.

[0006] A linear reciprocating medicine cutter includes a conveyor belt and a cutter assembly arranged above the conveyor belt. Guide chains are coaxially installed on both sides of the conveyor belt. A guide bar is fixedly installed on each link of the guide chain, and a slot is formed between the two guide bars. The cutter assembly includes:

[0007] Two cutters, and guide blocks adapted to the slots are fixedly arranged at the front and rear ends of the cutters;

[0008] Two docking seats are respectively arranged at the front and rear ends of the cutter, and a limiting groove is provided on the docking seat. The width of the limiting groove in the left and right direction is equal to the sum of the widths of the guide strip and the two slots. The limiting groove runs through the bottom surface of the docking seat and the side close to the cutter. A clearance groove is provided at the right end of the top of the limiting groove. The width of the clearance groove in the left and right direction is greater than the width of the guide block.

[0009] A one-way mechanism, installed at the left end of the bottom of the limit slot, is used to limit the guide block from being separated from the bottom of the limit slot;

[0010] The toggle mechanism is used to toggle the guide block located at the left end of the limit slot to the right end after the guide block is separated from the slot;

[0011] Two driving devices, the telescopic ends of the driving devices are connected to the docking seats in a left-right sliding manner, and an elastic member is installed between the two.

[0012] The effect is that the cutter at the right end cuts into the medicinal material to a certain depth to fix the position of the medicinal material, and the cutter at the left end cuts down, thereby avoiding uneven thickness at both ends of the slice due to changes in the position of the medicinal material during slicing. At the same time, since there is a small gap between the cutter at the right end and the conveyor belt, when the cutter at the left end is lifted, if the sliced ​​tablets flip over, it is difficult to enter under the cutter at the right end, thereby greatly avoiding the tablets from being cut again to form fragments.

[0013] Preferably, the bottom surface of the guide block and the bottom end of the cutter are located at the same height.

[0014] Preferably, the height of the slot is greater than the height of the cutter, so that the left cutter can completely pass over the right cutter after leaving the slot.

[0015] Preferably, the one-way mechanism includes an installation groove opened on the left side wall of the limit groove, and a rotating plate is elastically hinged at the bottom of the installation groove. When the bottom surface of the rotating plate abuts against the guide block, the rotating plate rotates counterclockwise into the installation groove, allowing the guide block to pass through the bottom of the rotating plate.

[0016] Preferably, the toggle mechanism comprises a second cylinder mounted on the docking seat, a toggle rod which can abut against the left side of the guide block is mounted on the piston end of the second cylinder, and the toggle rod moves when the second cylinder is started, thereby toggling the guide block.

[0017] Preferably, the driving device is a vertically mounted cylinder 1, a guide seat is fixedly mounted on the piston end of the cylinder 1, and a guide rod slidably connected to the guide block is fixedly mounted on the docking seat.

[0018] Preferably, a limiting strip is provided on a side of the limiting groove away from the cutter, and a notch adapted to the limiting strip is provided on the guide block.

[0019] Preferably, the movement speed of the conveyor belt is v, the width of the guiding strip is L, and the width of the slot is l. The movement frequency f of the driving device is v / (L + l), so that the docking seat can maintain the same relative position with the slot inside it.

[0020] Adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0021] 1. The cutter at the right end cuts into the medicinal material to a certain depth to fix the position of the medicinal material, and the cutter at the left end cuts it off, thus avoiding uneven thickness at both ends of the slice caused by the change of the position of the medicinal material during slicing;

[0022] 2. When the cutter at the left end is lifted, if the sliced tablet flips, it is difficult to enter below the cutter at the right end, avoiding the tablet being cut again to form fragments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present invention.

[0024] Figure 2 It is a schematic structural diagram of the guiding chain in the present invention.

[0025] Figure 3 It is a schematic diagram when the present invention cuts the medicinal material.

[0026] Figure 4 It is a schematic structural diagram of the cutter assembly in the present invention.

[0027] Figure 5 It is a schematic structural diagram of the one-way mechanism in the present invention.

[0028] Figure 6 It is a schematic structural diagram of the limiting groove in the present invention.

[0029] Figure 7 It is a schematic diagram of step S3 of the operation of the present invention.

[0030] Figure 8 It is a schematic diagram of step S5 of the operation of the present invention.

[0031] Figure 9 It is a schematic diagram of step S6 of the operation of the present invention.

[0032] Reference Signs:

[0033] 1. Conveyor belt; 11. Baffle; 12. Dividing plate; 13. Belt; 14. Guide chain; 141. Guide bar; 15. Driving frame; 2. Knife cutting assembly; 21. One-way mechanism; 211. Installation groove; 212. Rotating plate; 22. Poking mechanism; 221. Cylinder 2; 222. Poking rod; 23. Knife cutter; 231. Blade body; 232. Guide block; 24. Docking seat; 241. Limit groove; 242. Relief groove; 243. Limit bar; 25. Driving device; 251. Cylinder 1; 252. Guide seat; 253. Guide rod; 254. Elastic member. Detailed implementation mode

[0034] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0035] As Figure 1 shown, a linear reciprocating medicine cutting machine includes a conveyor belt 1 and a knife cutting assembly 2. The knife cutting assembly 2 is arranged above the conveyor belt 1. The conveyor belt 1 drives the medicinal materials to move, and the knife cutting assembly 2 reciprocates to slice or cut the medicinal materials.

[0036] The conveyor belt 1 includes a baffle 11, a dividing plate 12, a belt 13, two guide chains 14 and a driving frame 15. The guide chains 14 are arranged side by side with the belt 13, and the two ends of both are coaxial, so that their movement directions and paths are the same. The driving frame 15 is used to drive the guide chains 14 and the belt 13 to move synchronously. The baffle 11 is arranged behind the knife cutting assembly 2 and is used to block the cut tablets from approaching the front and rear ends of the belt 13. The dividing plate 12 is arranged on the right side of the knife cutting assembly 2 and is used to form a plurality of material grooves for separating materials.

[0037] As Figure 2 shown, the guide chain 14 is formed by connecting a plurality of chain links end to end, and a guide bar 141 is fixedly installed on each chain link. A slot is formed between the two guide bars 141.

[0038] As Figures 3 - 7 shown, the knife cutting assembly 2 includes two one-way mechanisms 21, two poking mechanisms 22, two knife cutters 23, two docking seats 24 and two driving devices 25. The two docking seats 24 are respectively arranged at the front and rear ends of the knife cutter 23. The one-way mechanism 21 and the poking mechanism 22 are both arranged on the docking seat 24. The docking seat 24 is driven to lift by the driving device 25, and then the two knife cutters 23 are controlled to move alternately;

[0039] The two knife cutters 23 are divided into knife cutter 23A and knife cutter 23B. The steps of the two knife cutters 23 moving relatively are:

[0040] S1. The cutter 23A is located on the left side of the cutter 23B and cuts into the medicinal material to a certain depth, and the cutter 23B abuts against the upper surface of the medicinal material.

[0041] S2. The cutters 23A and 23B move downward simultaneously. The cutter 23A cuts off the medicinal material, and the cutter 23B cuts into the medicinal material to a certain depth but does not cut it off.

[0042] S3. The cutter 23A moves upward relative to the cutter 23B until the blade of the cutter 23A reaches above the top end of the cutter 23B.

[0043] S4. The cutter 23A moves backward and moves to the right side of the cutter 23B.

[0044] S5. The cutter 23A moves downward and abuts against the upper surface of the medicinal material.

[0045] S6. The cutters 23B and 23A move downward simultaneously. The cutter 23B cuts off the medicinal material, and the cutter 23A cuts into the medicinal material to a certain depth but does not cut it off.

[0046] The above steps are cycled to slice the medicinal material.

[0047] To complete the above steps, the cooperation between the various components in the cutter assembly 2 is continued to be described below.

[0048] As Figures 4 - 9 shown, the cutter 23 includes a blade body 231 and two guide blocks 232. The two guide blocks 232 are respectively fixedly arranged at the front and rear ends of the blade body 231. The bottom surface of the guide block 232 is at the same height as the bottom end of the blade body 231, and the guide block 232 is adapted to the slot. An annular protrusion in contact with the inner side of the guide bar 141 is provided on the guide block 232, so that the cutter 23 slides up and down along the height direction of the slot, and the height of the blade body 231 is less than the height of the slot, so that in the above steps S3 and S4, the left cutter 23 can completely cross over the right cutter 23.

[0049] The driving device 25 includes a cylinder 1 251, a guide seat 252, a guide rod 253 and an elastic member 254. The piston end of the cylinder 1 251 is fixedly installed with the guide seat 252. The guide rod 253 is fixedly installed on the docking seat 24 and is slidably connected with the guide seat 252. An elastic member 254 (preferably a spring) is installed between the docking seat 24 and the guide seat 252. Since the conveyor belt 1 is always moving, when the guide block 232 on the cutter 23 is inserted into the slot, the docking seat 24 moves synchronously with the conveyor belt 1, so that the spring is compressed. When the guide block 232 on the cutter 23 disengages from the slot, the spring resets the docking seat 24.

[0050] Assume that the movement speed of the conveyor belt 1 is v, the width of the guide bar 141 is L, the width of the slot is l, and the expansion and contraction frequency of the cylinder 1 251 is f=v / (L+l), so that when the cylinder 1 251 is extended, the docking seat 24 can maintain the same relative position with the slot inside it.

[0051] A limiting groove 241 is provided on the docking seat 24, and the limiting groove 241 passes through the bottom surface of the docking seat 24 and a side close to the cutter 23. A clearance groove 242 is provided at the right end of the top of the limiting groove 241. The width of the limiting groove 241 in the left-right direction is equal to the sum of the widths of the guide strip 141 and the two slots. Therefore, when the two cutters 23 are inserted between the slots, the guide blocks 232 on the two cutters 23 are respectively located at the left and right ends of the slots, and the width of the clearance groove 242 in the left-right direction is greater than the width of the guide block 232, so that the guide block 232 located at the right end can enter the clearance groove 242. Therefore, in the above steps S2 and S6, the docking seat 24 descends to form a height difference between the two cutters 23, so that the cutter 23 on the left cuts the medicinal materials.

[0052] The one-way mechanism 21 includes a mounting groove 211 and a rotating plate 212. The mounting groove 211 is provided on the left side wall of the limiting groove 241. One end of the rotating plate 212 is elastically hinged at the bottom of the mounting groove 211 through a spring and a rotating shaft. When the bottom surface of the rotating plate 212 abuts against the guide block 232, the rotating plate 212 rotates counterclockwise and is received into the mounting groove 211. Thus, in the above step S3, the docking seat 24 rises to drive the left cutter 23 to rise. In the above step S5, the docking seat 24 descends to make the guide block 232 on the left cutter 23 abut against the bottom surface of the rotating plate 212, so that the guide block 232 on the left cutter 23 enters the limiting groove 241.

[0053] The toggle mechanism 22 includes a second cylinder 221 and a toggle rod 222. The second cylinder 221 is installed on the docking seat 24. The toggle rod 222 is fixedly installed on the piston end of the second cylinder 221. A limiting strip 243 is arranged on the side of the limiting groove 241 away from the cutter 23. A notch adapted to the limiting strip 243 is opened on the guide block 232.

[0054] In the above step S4, the bottom of the guide block 232 in the cutter 23A abuts against the rotating plate 212, the cylinder 221 is started, the toggle rod 222 pushes the guide block 232 in the cutter 23A to move to the right, and the limiting strip 243 enters the notch, so that the cutter 23 remains vertical until the guide block 232 moves to the right end of the limiting slot 241. At this time, the guide block 232 in the cutter 23B is located below the left end of the limiting slot 241. Finally, the cylinder 221 drives the toggle rod 222 to reset.

[0055] Working steps (steps S1-S6 below correspond to steps S1-S6 above):

[0056] S1, the cutter 23A is located on the left side of the cutter 23B and cuts into the medicinal material to a certain depth, and the cutter 23B is against the upper surface of the medicinal material;

[0057] S2, the cylinder 251 drives the docking seat 24 to descend, the left end of the limit groove 241 abuts against the cutter 23A, and the cutter 23B enters the clearance groove 242, so that the cutter 23A moves downward relative to the cutter 23B to cut the medicinal material, and the cutter 23B cuts into the medicinal material to a certain depth but does not cut it;

[0058] S3, the cylinder 251 drives the docking seat 24 to rise, and the rotating plate 212 abuts against the cutter 23A, so that the cutter 23A moves upward relative to the cutter 23B until the blade of the cutter 23A reaches above the top of the cutter 23B;

[0059] S4, the second cylinder 221 is started, and the toggle rod 222 pushes the cutter 23A to move rightward until the guide block 232 in the cutter 23A moves to the right end of the limiting groove 241, and the guide block 232 in the cutter 23B is located below the left end of the limiting groove 241;

[0060] S5, the cutter 23A slides downward along the slot against the upper surface of the medicinal material;

[0061] S6, the cylinder 251 drives the docking seat 24 to descend, the left end of the limiting groove 241 abuts against the cutter 23B, and the cutter 23A enters the clearance groove 242, so that the cutter 23B moves downward relative to the cutter 23A to cut the medicinal material, and the cutter 23A does not move;

[0062] Repeat the above steps in a loop.

[0063] Through the above steps, the cutter 23 at the right end cuts into the medicinal material to a certain depth to fix the position of the medicinal material, and the cutter 23 at the left end cuts down, thereby avoiding uneven thickness at both ends of the slice due to changes in the position of the medicinal material during slicing. At the same time, since there is a small gap between the cutter 23 at the right end and the conveyor belt 1, when the cutter 23 at the left end is lifted, if the sliced ​​tablets are turned over, it is difficult to enter under the cutter 23 at the right end, thereby greatly avoiding the tablets from being cut again to form fragments.

[0064] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A linear reciprocating medicine cutting machine, comprising a conveyor belt and a cutter assembly arranged above the conveyor belt, characterized in that: Guide chains are coaxially installed on both sides of the conveyor belt, and a guide bar is fixedly installed on each link of the guide chain, and a slot is formed between the two guide bars. The cutter assembly includes: Two cutters, with guide blocks matching the slots fixedly arranged at the front and rear ends of the cutters; Two docking seats are respectively arranged at the front and rear ends of the cutter, and a limiting groove is provided on the docking seat. The width of the limiting groove in the left and right direction is equal to the sum of the widths of the guide strip and the two slots. The limiting groove runs through the bottom surface of the docking seat and the side close to the cutter. A clearance groove is provided at the right end of the top of the limiting groove. The width of the clearance groove in the left and right direction is greater than the width of the guide block. A one-way mechanism, installed at the left end of the bottom of the limit slot, is used to limit the guide block from being separated from the bottom of the limit slot; The toggle mechanism is used to toggle the guide block located at the left end of the limit slot to the right end after the guide block is separated from the slot; Two driving devices, the telescopic ends of the driving devices are connected to the docking seats in a left-right sliding manner, and an elastic member is installed between the two.

2. The linear reciprocating medicine cutting machine according to claim 1, characterized in that: The bottom surface of the guide block and the bottom end of the cutter are located at the same height.

3. The linear reciprocating medicine cutting machine according to claim 2, characterized in that: The height of the slot is greater than the height of the cutter.

4. The linear reciprocating medicine cutting machine according to claim 3, characterized in that: The one-way mechanism comprises a mounting groove on the left side wall of the limiting groove, the bottom of which is elastically hinged with a rotating plate. When the bottom surface of the rotating plate abuts against the guide block, the rotating plate rotates counterclockwise and is received in the mounting groove.

5. The linear reciprocating medicine cutting machine according to claim 1, characterized in that: The toggle mechanism comprises a second cylinder mounted on the docking seat, and a toggle rod which can abut against the left side of the guide block is mounted on the piston end of the second cylinder.

6. The linear reciprocating medicine cutting machine according to claim 1, characterized in that: The driving device is a vertically mounted cylinder 1, a piston end of the cylinder 1 is fixedly mounted with a guide seat, and a guide rod slidably connected to the guide block is fixedly mounted on the docking seat.

7. The linear reciprocating medicine cutting machine according to claim 5, characterized in that: A limiting strip is arranged on a side of the limiting groove away from the cutter, and a notch matched with the limiting strip is provided on the guide block.

8. The linear reciprocating medicine cutting machine according to any one of claims 1 to 7, characterized in that: The moving speed of the conveyor belt is v, the width of the guide strip is L, the width of the slot is l, and the frequency of movement of the driving device is f=v / (L+l).

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