Cap screwing machine

Abstract

According to the cap screwing machine, two stand columns are fixed to a machine table and arranged on the side face of a bottle body conveying disc, and a bottle body positioning piece is installed on the portion, corresponding to a bottle body clamping groove of the bottle body conveying disc, of the machine table between the two stand columns; and a bottle cap screwing mechanism and a bottle cap righting and holding mechanism are arranged on the two upright posts (7). The rubber head dropper bottle installing device is reasonable in design, integrates the functions of conveying a rubber head dropper, centralizing the rubber head dropper, accurately screwing the centralized rubber head dropper to a liquid bottle and the like, and directly completes installation of the rubber head dropper bottle in a water flowing mode. Manpower is completely liberated, and the installation accuracy is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembly machinery. Background Art

[0002] The rubber-tipped dropper bottle, also known as the rubber-capped dropper bottle, is an instrument used to absorb or drip a small amount of liquid reagent. This type of dropper bottle is used in large quantities. Among them, there is a type of dropper with a rubber head that needs to be covered on the bottle body in a spiral form. It is composed of three parts: a rubber head, a dropper and a liquid bottle. The rubber head is installed on the upper end of the dropper. There is a screw cap with an internal thread outside the dropper. There is an external thread at the opening of the upper end of the liquid bottle. The external thread matches the internal thread on the screw cap. In this way, the rubber-tipped dropper bottle needs to be screwed onto the dropper bottle. In a large number of production processes, if it is done one by one by manpower, it will not only waste a lot of manpower, but also have an extremely low speed, and occasionally it may not be able to be screwed tightly. The existing mechanical screwing equipment is relatively simple, and it is necessary to place the rubber-tipped dropper on the liquid bottle and then screw it. This type of equipment requires extremely cumbersome preliminary preparation work. Summary of the invention

[0003] The utility model aims to provide a capping machine which can convey a dropper with a rubber head and a liquid bottle correspondingly and butt-jointly and screw them together.

[0004] The two columns of the utility model are fixed on the machine platform and placed on the side of the bottle conveying disc. A bottle positioning piece is installed on the machine platform between the two columns corresponding to the bottle groove of the bottle conveying disc; a bottle cap screwing mechanism and a bottle cap straightening and holding mechanism are installed on the two columns;

[0005] Bottle cap screwing mechanism: including a bottle cap screwing part and an up-and-down moving part with the bottle cap screwing part;

[0006] a. Up and down moving part: a slide rail mounting plate is installed on two columns through a tightening mechanism clamping frame, a longitudinal slide rail is fixed on the slide rail mounting plate, a tightening mechanism connecting seat plate is fixedly installed on the slide rail sleeve matched with the longitudinal slide rail, and a screwing part mounting seat of the screwing bottle cap part is fixedly installed on the tightening mechanism connecting seat plate; the tightening mechanism connecting seat plate and the slide rail sleeve are fixed to one end of the connecting plate, and the other end of the connecting plate passing through the sliding give way groove is fixedly connected to the upper cylinder, the upper piston rod of the upper cylinder is fixedly connected to the lower piston rod of the lower cylinder through a connecting rod component, and the cylinder body fixing device of the lower cylinder is on the back of the slide rail mounting plate;

[0007] b. Twisting bottle cap part: the top of the mounting seat is fixedly connected to the cylinder body of the rotating cylinder, the end of the rotating shaft of the rotating cylinder in the cavity of the upper end part of the mounting seat is connected to the twisting shaft through a coupling, and the middle part of the twisting shaft is connected to the inner wall of the lower end of the mounting seat through a bearing; an air extraction ring groove is opened in the mounting seat, and an air extraction hole is opened on the side wall of the twisting shaft corresponding to the air filling ring groove, and the shaft inner cavity of the twisting shaft is connected with the air extraction ring groove; a negative pressure bottle cap grabbing sleeve whose inner cavity is connected to the shaft inner cavity of the twisting shaft is sleeved on the lower end of the twisting shaft, and the negative pressure bottle cap grabbing sleeve is fastened to the lower end of the twisting shaft through a fixed pressing piece;

[0008] Bottle cap straightening and holding mechanism: a bottle cap straightening and holding mechanism bracket is fixedly mounted on the two upright posts, the bottle cap straightening and holding mechanism is mounted on the bottle cap straightening and holding mechanism bracket, and the bottle cap straightening and holding mechanism comprises a bottle cap conveying part, a dropper straightening part and a holding part corresponding to the negative pressure bottle cap grabbing sleeve;

[0009] Bottle cap conveying part: two bottle cap conveyor belts are installed on the bottle cap straightening and holding mechanism bracket through the conveyor belt bracket, and a bottle cap conveying chute is arranged between the two bottle cap conveyor belts, and a straightening groove is opened at the front end of the two bottle cap conveyor belts, and a straightening push block is inserted into the straightening groove, and the outer end of the straightening push block is connected with the piston rod of the transverse thrust cylinder; a separation cylinder bracket with a notch at the front end is installed at the front end of the two bottle cap conveyor belts, and a vertical mounting frame is fixed on the separation cylinder bracket, and the separation cylinder is installed on the separation cylinder bracket and the vertical mounting frame, and a transverse chute is arranged on the vertical mounting frame, and two separation claws of the separation cylinder pass through the transverse chute, and separation clamping frames are respectively installed on the two separation claws, and a bottle cap clamping groove matching the outer part of the bottle cap with a dropper is arranged between the front ends of the two separation clamping frames;

[0010] The rotating disc of the bottle conveying disc is connected to the machine platform through the central rotating shaft. A bottle clamping groove matching the outer edge of the bottle body is opened on the outer edge of the central rotating shaft. An arc-shaped bottle guard is installed on the machine platform outside the rotating disc near the bottle cap screwing mechanism.

[0011] The utility model has a reasonable design, and integrates the functions of conveying the rubber-tipped dropper, straightening the rubber-tipped dropper, and accurately screwing the straightened rubber-tipped dropper into the liquid bottle. The device can directly install the rubber-tipped dropper bottle in a water flow manner, which completely liberates manpower and increases the accuracy of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This utility model Figure 1 Left view of;

[0014] Figure 3 This utility model Figure 2Local schematic diagram of AA direction;

[0015] Figure 4 It is a schematic diagram of a partial three-dimensional effect of the utility model;

[0016] Figure 5 It is a sectional view of the bottle cap screwing part of the bottle cap screwing mechanism of the utility model;

[0017] Figure 6 This utility model Figure 5 A magnified schematic diagram of part B;

[0018] Figure 7 This utility model Figure 5 An enlarged schematic diagram of part C of FIG.

[0019] Figure 8 This is a front view of the bottle cap straightening and holding mechanism of the utility model;

[0020] Fig. 9 This is a top view of the bottle cap straightening and holding mechanism of the utility model;

[0021] Fig.10 This is a top view of the bottle cap holding mechanism of the utility model;

[0022] Fig.11 This utility model Fig.10 Schematic diagram of looking left and turning left 90 degrees;

[0023] Fig.12 It is a top view of the bottle conveying disc of the utility model. DETAILED DESCRIPTION

[0024] The two columns 7 of the utility model are fixed on the machine platform and placed on the side of the bottle conveying disc 1. The machine platform between the two columns 7 is provided with a bottle positioning member 12 corresponding to the bottle groove 101 of the bottle conveying disc 1; the bottle cap screwing mechanism and the bottle cap straightening and holding mechanism 2 are installed on the two columns 7; the machine platform is a bearing platform, which can also be called a workbench, and the bottle cap screwing mechanism, the bottle cap straightening and holding mechanism 2 and the bottle conveying disc 1 are correspondingly installed on this workbench and work correspondingly. The screwing shaft 4, the bottle cap 206 with a dropper attached to the bottle cap straightening and holding mechanism 2, and the bottle 104 conveyed by the bottle conveying disc 1 are in longitudinal corresponding positions. The bottle positioning member 12 is a mechanism for cooperating with the bottle groove 101 to relatively stabilize the bottle 104, and can be in two forms. In the first form, the front end of the bottle positioning member 12 is a material such as elastic rubber. When the bottle conveying disc 1 rotates to this position with the bottle 104, the bottle 104 will squeeze the soft rubber and squeeze in, so that the bottle positioning member 12 will cooperate with the bottle groove 101 to clamp the bottle 104. When the bottle cap screwing mechanism at the upper end screws the bottle cap 206 with a dropper onto the bottle 104, the bottle conveying disc 1 rotates with the bottle 104 to separate from the bottle positioning member 12. The second type is that the bottle positioning member 12 is a telescopic mechanism controlled by a motor or an air pump. When the bottle conveying disc 1 rotates to this position with the bottle 104, the motor or the air pump controls the telescopic rod to extend until it is against the bottle 104 and remains stable. When the bottle cap screwing mechanism at the upper end screws the bottle cap 206 with the dropper onto the bottle 104, the motor or the air pump controls the telescopic rod to retract and break away from the contact with the bottle 104, and then rotates the bottle conveying disc 1 to convey the installed rubber-head dropper bottle to the next process, and at the same time conveys the next bottle 104 to this position, and so on.

[0025] Bottle cap screwing mechanism: includes a screwing bottle cap part and an up-and-down moving part with the screwing bottle cap part; the screwing bottle cap part cooperates with the bottle cap straightening and holding mechanism 2, and is divided into two tasks (grabbing and screwing), grabbing the bottle cap 206 with a dropper, and then sending the bottle cap 206 with a dropper to the top of the bottle body 104 at the lower end, and docking, and then rotating the screwing shaft rod 4 to connect the bottle cap 206 with the bottle body 104 as a whole, that is, it is completed. The up-and-down moving part with the screwing bottle cap part is a motion mechanism, which is a mechanism that moves up and down with the screwing bottle cap part.

[0026] a. Up and down moving part: a slide rail mounting plate 3 is installed on the two columns 7 through a tightening mechanism clamping frame 5, a longitudinal slide rail 10 is fixed on the slide rail mounting plate 3, a tightening mechanism connecting seat plate 8 is fixedly installed on the slide rail sleeve 11 matched with the longitudinal slide rail 10, and the screwing part mounting seat 6 of the screwing bottle cap part is fixedly installed on the tightening mechanism connecting seat plate 8; the tightening mechanism connecting seat plate 8 and the slide rail sleeve 11 are fixed to one end of the connecting plate 15, and the other end of the connecting plate 15 passes through the sliding yielding groove 13 and is fixedly connected to the upper cylinder 14, the upper piston rod 16 of the upper cylinder 14 is fixedly connected to the lower piston rod 17 of the lower cylinder 19 through a connecting rod component 18, and the cylinder body of the lower cylinder 19 is fixed to the back of the slide rail mounting plate 3; the tightening mechanism clamping frame 5 is a fixed frame, which is a bracket for installing other mechanisms or components. In order to install firmly, the utility model adopts two upper and lower ones. The slide rail mounting plate 3 is also a fixed bracket, which is fixedly mounted in front of the tightening mechanism clamping frame 5, and there is a track (longitudinal slide rail 10) on it for the up and down movement of the screw cap part. This up and down movement is completed by the up and down movement of the slide rail sleeve 11 on the longitudinal slide rail 10. The upper cylinder 14 and the lower cylinder 19 contained in this part are a power source for driving the screw cap part to move, wherein the upper cylinder 14 is a moving cylinder, that is, a cylinder whose cylinder body (cylinder body) moves and the piston rod does not move, and the lower cylinder 19 is a fixed cylinder, that is, a cylinder whose cylinder body (cylinder body) does not move and the piston rod telescopic movement, the piston rods (upper piston rod 16 and lower piston rod 17) of the upper cylinder 14 and the lower cylinder 19 are fixedly mounted, because the movement of the screw cap part needs two steps to complete, the first step is to screw the shaft rod 4 and dock with the bottle cap 206 with a dropper below, at this time, the upper cylinder 14 works, because the cylinder body of the upper cylinder 14 and the mounting seat (tightening) of the screw cap part are connected. The mechanism is connected to the seat plate 8) and is fixedly connected by the connecting plate 15, so the cylinder body of the upper cylinder 14 moves downward with the screwing bottle cap part. When the screwing shaft rod 4 completely covers the bottle cap 206 with the dropper (this part is the process of grabbing, which will be described in detail later), the upper cylinder 14 stops working, and the lower cylinder 19 starts working. The piston rod of the lower cylinder 19 brings the upper cylinder 14, the connecting plate 15, the tightening mechanism connected to the seat plate 8, and the screwing bottle cap part to continue to move downward until the bottle cap 206 with the dropper is docked with the bottle body 104. At this time, the docking work of the upper and lower moving parts is completed. On the contrary, the reverse movement of the upper cylinder 14 and the lower cylinder 19 will bring the screwing bottle cap part back to the initial position for the next operation. The sliding clearance groove 13 is the upper and lower movement area of ​​the connecting plate 15.

[0027] b. Twisting bottle cap part: the top of the mounting seat 6 is fixedly connected to the cylinder body of the rotating cylinder 9, the end of the rotating shaft 20 of the rotating cylinder 9 in the cavity of the upper end part of the mounting seat 6 is connected to the screwing shaft 4 through a coupling 21, and the middle part of the screwing shaft 4 is connected to the inner wall of the lower end of the mounting seat 6 through a bearing 24; an air pumping annular groove 25 is opened in the mounting seat 6, and an air pumping hole 22 is opened on the side wall of the screwing shaft 4 corresponding to the air filling annular groove 25, and the inner cavity 23 of the shaft of the screwing shaft 4 is connected to the air pumping annular groove 25 is connected; a negative pressure bottle cap grabbing sleeve 26 is set at the lower end of the screwing shaft rod 4, and the sleeve grabbing inner cavity 27 is connected to the shaft inner cavity 23 of the screwing shaft rod 4, and the negative pressure bottle cap grabbing sleeve 26 is fastened to the lower end of the screwing shaft rod 4 through a fixed pressure piece 30; the mounting seat 6 is fixedly connected to the tightening mechanism connecting seat plate 8, so when the up and down moving part moves, it will move synchronously with the mounting seat 6, so that the screwing bottle cap part connected to the mounting seat 6 will move up and down. The upper end of the mounting seat 6 is fixedly connected to the outer shell of the rotating cylinder 9, and the rotating shaft of the rotating cylinder 9 is placed in the cavity in the mounting seat 6, and is connected to the top of the screwing shaft rod 4 through a coupling 21 in the cavity, so that when the rotating cylinder 9 works, the rotating shaft of the rotating cylinder 9 rotates with the screwing shaft rod 4, and this rotation is determined by the number of rings of the thread matching between the bottle cap and the bottle body, that is, this rotation is only to screw the bottle cap to the bottle body tightly, and the rotation stops after the screwing is completed. The screwing shaft rod 4 is connected to the mounting seat 6 via a bearing, so that the screwing shaft rod 4 can be ensured to rotate smoothly inside the mounting seat 6 .

[0028] The exhaust hole 22 and the exhaust ring groove 25: The exhaust ring groove 25 is a ring-shaped groove, which is connected to the external vacuum pump through the air hole. The exhaust hole 22 on the screw shaft 4 connects the inner cavity of the screw shaft 4 and the exhaust ring groove 25. When the screw shaft 4 rotates, the exhaust hole 22 and the exhaust ring groove 25 are always kept corresponding. In this way, when the vacuum pump is exhausting air, the inside of the screw shaft 4 is always exhausted, so that a negative pressure is formed inside the screw shaft 4.

[0029] The negative pressure bottle cap grabbing sleeve 26 is similar to a sleeve, and its sleeve grabbing inner cavity 27 can just place the rubber head or rubber cap A and the cover B therein. The negative pressure bottle cap grabbing sleeve 26 is fastened to the bottom end of the screwing shaft 4 through the first-level fastener (fixed pressure part 30), and the second-level fastener (secondary fixed pressure part 28 and fixed pressure spring 30) is added to the upper end of the negative pressure bottle cap grabbing sleeve 26 outside the screwing shaft 4. The two ends of the fixed pressure spring 30 are respectively pressed against the upper end of the negative pressure bottle cap grabbing sleeve 26 and the lower end of the secondary fixed pressure part 28.

[0030] After the rubber head or rubber cap A and the cover B enter the sleeve grasping cavity 27 (this step is the grasping working step, which is completed by the operation of the upper cylinder 14), the vacuum pump works to exhaust the remaining part of the screwing shaft rod 4 and the upper end of the sleeve grasping cavity 27, and the bottle cap 206 with the dropper is basically fastened to the screwing shaft rod 4 through negative pressure. At this time, it can be seen that only the dropper part is outside the negative pressure bottle cap grasping sleeve 26, and then the lower cylinder 19 works to continue to move downward with the screwing bottle cap part until the bottle cap 206 with the dropper is aligned with the bottle body 104. Connect, then rotate the cylinder 9 to work, rotate in the matching direction of the thread, until the matching threads of the bottle cap 206 and the bottle body 104 are completely closed, the rotating cylinder 9 stops passing, the vacuum pump releases the air and releases part of the gas, so that the rubber head or rubber cap A and the cover B are separated from the fastening state with the negative pressure bottle cap grabbing sleeve 26, and then, the lower cylinder 19 and the upper cylinder 14 work in turn, and the entire screwing bottle cap part moves in reverse in turn, returns to the initial position, and then proceeds to the next step, reciprocating in turn.

[0031] Bottle cap straightening and holding mechanism 2: A bottle cap straightening and holding mechanism bracket 202 is fixedly mounted on the two upright posts 7, and the bottle cap straightening and holding mechanism 2 is mounted on the bottle cap straightening and holding mechanism bracket 202. The bottle cap straightening and holding mechanism 2 comprises a bottle cap conveying part, a dropper straightening part and a holding part corresponding to the negative pressure bottle cap grasping sleeve 26; this part is the bottle cap conveying mechanism, that is, a mechanism for conveying the bottle cap 206 with a dropper to a position corresponding to the lower end of the negative pressure bottle cap grasping sleeve 26, and is totally divided into a bottle cap conveying part, a bottle cap straightening part and a bottle cap docking part.

[0032] Bottle cap conveying part: Two bottle cap conveying belts 214 are installed on the bottle cap straightening and holding mechanism bracket 202 through the conveying belt bracket 213, and a bottle cap conveying chute 215 is located between the two bottle cap conveying belts 214. The conveying part blows the bottle caps 206 with droppers forward in the bottle cap conveying chute 215 through the air blower 205, and the bottle caps 206 with droppers are arranged in sequence in the bottle cap conveying chute 215 until they are blown into the straightening position 216.

[0033] Bottle cap straightening part: the front ends of the two bottle cap conveyor belts 214 are provided with straightening grooves (straightening positions 216), straightening push blocks 209 are inserted into the straightening grooves, and the outer ends of the straightening push blocks 209 are connected to the piston rod 204 of the lateral thrust cylinder 203; the bottle cap straightening part is to straighten the bottle cap 206 with a dropper. During the transportation and storage of the bottle cap 206 with a dropper, the dropper D and the rubber head or rubber cap A and the cover B may not be on the same mid-vertical line, that is, the dropper D is slightly skewed (this skew is not very large, but it may affect the subsequent work). If it is skewed, it may not be able to align with the bottle body below in the docking step, so it is necessary to straighten the dropper D corresponding to the rubber head or rubber cap A and the cover B to maintain a mid-vertical line state. This part is the function of straightening the dropper D, the rubber head or rubber cap A and the cover B to a mid-vertical line. This part is mainly completed by the two side straightening mechanisms outside the front end of the bottle cap conveyor belt 214. The straightening mechanism includes a transverse thrust cylinder 203, a piston rod 204 of the transverse thrust cylinder 203, and a straightening push block 209. The two straightening push blocks 209 are installed opposite to each other, and the ends are in an arc shape, matching the outer edge of the dropper D. After the two straightening push blocks 209 are connected, they form a circle, completely clamping the dropper D. In this way, the rubber head or rubber cap A and the cover B are clamped on both sides by the two bottle cap conveyor belts 214, and the dropper D is pushed by the transverse thrust cylinder 203 to straighten to the same midline as the rubber head or rubber cap A and the cover B. The transverse thrust cylinder 203 and the straightening push block 209 are reciprocating. Fig. 9 The righting position 216 is located at the righting position 216 (there are two righting positions in the figure), and when the bottle cap clamping groove 218 is vacant, the bottle cap 206 with a dropper in the front righting position 216 is pushed by the rear squeeze, and the bottle cap 206 with a dropper in the rear righting position 216 is sent to the righting position 216 at the front, and the bottle cap 206 with a dropper in the bottle cap conveying chute 215 enters the rear righting position 216, and the operation is repeated in sequence. The bottle caps 206 with droppers in the bottle cap conveying chute 215, the straightening position 216, and the bottle cap clamping groove 218 are all blown by the rear side air blower 205 to the bottle cap 206 with droppers closest to them, so that they will move forward one by one. If the front is fully loaded, they cannot be blown even by blowing. After being empty, a row of bottle caps will be pushed forward, two of them remain in the straightening position 216, and the frontmost one is in the bottle cap clamping groove 218 of the bottle cap docking part.

[0034] Bottle cap docking part: A separation cylinder bracket 210 with a notch 219 at the front end is installed at the front end of the two bottle cap conveyor belts 214, a vertical mounting frame 217 is fixed on the separation cylinder bracket 210, and the separation cylinder 207 is installed on the separation cylinder bracket 210 and the vertical mounting frame 217. There is a horizontal slide on the vertical mounting frame 217, and two separation claws 220 of the separation cylinder 207 pass through the horizontal slide. A separation clamping frame 212 is installed, and a bottle cap clamping groove 218 is provided between the front ends of the two separation clamping frames 212 to cooperate with the outer part of the bottle cap 206 with a dropper; this part cooperates with the screwing bottle cap part of section

[0010] , so when the bottle cap 206 with a dropper is placed in the bottle cap clamping groove 218, it just corresponds to the sleeve grasping inner cavity 27 of the negative pressure bottle cap grasping sleeve 26 in the screwing bottle cap part, making it convenient for the sleeve grasping inner cavity 27 to grasp the bottle cap 206 with a dropper. The separation cylinder 207 is a pneumatic control that can separate or merge the separation claws 220. After the negative pressure bottle cap grabbing sleeve 26 completes the negative pressure form to grab the bottle cap 206 with a dropper, the separation cylinder 207 works to separate the separation claws 220, so that the separation clamping frame 212 will also be separated at the same time, making room for the negative pressure bottle cap grabbing sleeve 26 to continue to go down from the space made, until it is matched with the bottle body at the bottom. The space (making room gap 219) is opened at the front end of the separation cylinder bracket 210, corresponding to the bottle cap clamping groove 218, and its opening must ensure that the negative pressure bottle cap grabbing sleeve 26 takes the bottle cap 206 with a dropper through this space. The separation cylinder bracket 210 and the vertical mounting frame 217 are fixed mounting brackets, which are convenient for installing the separation cylinder 207. The separation cylinder bracket 210 is installed at the front end of the bottle cap conveyor belt 214. In order to save manpower to detect whether there is a bottle cap 206 with a dropper in the bottle cap clamping groove 218, an infrared detection probe 208 can be installed on the separation cylinder bracket 210 on both sides of the corresponding bottle cap clamping groove 218 (there are many existing infrared detection technologies, which will not be described in detail here). Fig.11 It can be seen that the groove structure of the bottle cap clamping groove 218 has a gradient, which corresponds to the shape of the bottle cap 206 with a dropper, so that the bottle cap 206 with a dropper can be stuck in the bottle cap clamping groove 218 when the separation cylinder brackets 210 on both sides are merged.

[0035] The rotating disc 102 of the bottle conveying disc 1 is connected to the machine platform through the central rotating shaft 105, and a bottle clamping groove 101 matching the outer edge of the bottle 104 is opened on the outer edge of the central rotating shaft 105, and an arc-shaped bottle guard 103 is installed on the machine platform outside the rotating disc 102 near the bottle cap screwing mechanism. The bottle conveying disc 1 is a step-by-step rotating bottle conveying mechanism, and countless bottle clamping grooves 101 are opened on the edge of its rotating disc 102, and there is a shielding arc-shaped retaining ring (arc-shaped bottle guard 103) in some areas. There is a bottle in the bottle clamping groove 101 shielded by the retaining ring to prevent the bottle from escaping from the clamping groove, and there is no bottle in the bottle clamping groove 101 not shielded by the retaining ring. The so-called stepping type is controlled by a component motor, and the bottle body clamping groove 101 with the bottle body is used to correspond to the bottom of the negative pressure bottle cap grabbing sleeve 26. After the screwing is completed, it is rotated again, and the next bottle body clamping groove 101 with the bottle body is corresponding to the bottom of the negative pressure bottle cap grabbing sleeve 26. The part of the bottle body placed in the bottle body clamping groove 101 can be docked by the existing bottle body conveying equipment, and the bottle outlet end of this conveying equipment corresponds to the bottle body clamping groove 101 closest to the arc-shaped bottle guard 103 (that is, Fig.12 The bottle body clamping groove 101 is located closest to the left end of the arc-shaped bottle protection body 103).

Claims

1. A capping machine, characterized in that: Two columns (7) are fixed on the machine platform and placed on the side of the bottle conveying disc (1); a bottle positioning member (12) is installed on the machine platform between the two columns (7) corresponding to the bottle clamping groove (101) of the bottle conveying disc (1); a bottle cap screwing mechanism and a bottle cap straightening and holding mechanism (2) are installed on the two columns (7); Bottle cap screwing mechanism: including a bottle cap screwing part and an up-and-down moving part with the bottle cap screwing part; a. Up and down moving part: a slide rail mounting plate (3) is installed on two upright posts (7) through a tightening mechanism clamping frame (5), a longitudinal slide rail (10) is fixed on the slide rail mounting plate (3), a tightening mechanism connecting seat plate (8) is fixedly installed on a slide rail sleeve (11) matched with the longitudinal slide rail (10), and a screwing part mounting seat (6) for screwing the bottle cap part is fixedly installed on the tightening mechanism connecting seat plate (8); the tightening mechanism connecting seat plate (8) and the slide rail sleeve (11) are fixed to one end of a connecting plate (15), and the other end of the connecting plate (15) passes through the sliding groove (13) and is fixedly connected to the upper cylinder (14), the upper piston rod (16) of the upper cylinder (14) and the lower piston rod (17) of the lower cylinder (19) are fixedly connected through a connecting rod component (18), and the cylinder body of the lower cylinder (19) is fixed to the back of the slide rail mounting plate (3); b. Screwing bottle cap part: The top of the mounting seat (6) is fixedly connected to the cylinder body of the rotating cylinder (9), the end of the rotating shaft (20) of the rotating cylinder (9) in the cavity of the upper end part of the mounting seat (6) is connected to the screwing shaft (4) through a coupling (21), and the middle part of the screwing shaft (4) is connected to the inner wall of the lower end of the mounting seat (6) through a bearing (24); an air pumping ring groove (25) is opened in the mounting seat (6) corresponding to the inflation ring groove (25). An air extraction hole (22) is formed on the side wall of the screwing shaft (4) of the groove (25); the shaft inner cavity (23) of the screwing shaft (4) is communicated with the air extraction ring groove (25); a sleeve grasping inner cavity (27) is sleeved on the lower end of the screwing shaft (4) and communicates with the shaft inner cavity (23) of the screwing shaft (4); the negative pressure bottle cap grasping sleeve (26) is fastened to the lower end of the screwing shaft (4) via a fixing member (30); Bottle cap straightening and holding mechanism (2): a bottle cap straightening and holding mechanism bracket (202) is fixedly mounted on the two upright posts (7), the bottle cap straightening and holding mechanism (2) is mounted on the bottle cap straightening and holding mechanism bracket (202), and the bottle cap straightening and holding mechanism (2) comprises a bottle cap conveying part, a dropper straightening part, and a holding part corresponding to the negative pressure bottle cap grasping sleeve (26); Bottle cap conveying part: two bottle cap conveying belts (214) are installed on the bottle cap straightening and holding mechanism bracket (202) through the conveying belt bracket (213), and a bottle cap conveying chute (215) is provided between the two bottle cap conveying belts (214). The front ends of the two bottle cap conveying belts (214) are provided with straightening grooves, and straightening push blocks (209) are inserted into the straightening grooves. The outer ends of the straightening push blocks (209) are connected to the piston rod (204) of the transverse thrust cylinder (203); a separation cylinder bracket (213) having a notch (219) at the front ends is installed at the front ends of the two bottle cap conveying belts (214). A vertical mounting frame (217) is fixed on the separation cylinder bracket (210), the separation cylinder (207) is mounted on the separation cylinder bracket (210) and the vertical mounting frame (217), a transverse slide groove is provided on the vertical mounting frame (217), two separation claws (220) of the separation cylinder (207) pass through the transverse slide groove, separation clamping frames (212) are respectively installed on the two separation claws (220), and a bottle cap clamping groove (218) that cooperates with the outside of the bottle cap (206) with a dropper is provided between the front ends of the two separation clamping frames (212); The rotating disc (102) of the bottle conveying disc (1) is connected to the machine platform via a central rotating shaft (105), and a bottle clamping groove (101) matching the outer edge of the bottle body (104) is formed on the outer edge of the central rotating shaft (105). An arc-shaped bottle guard (103) is installed on the machine platform outside the rotating disc (102) close to the bottle cap screwing mechanism.

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