Single-head cap screwing machine capable of preventing cap from falling off

Abstract

The single-head cap screwing machine comprises a lifting mechanism, a cap screwing mechanism, a bottle body fixing mechanism and a mounting seat, a gland is rotationally connected with a rotating seat through a bearing, when cap screwing is about to be completed, the gland can still move along with a bottle cap, the bottle cap cannot be damaged, and when a rubber block is damaged to a certain degree, the gland can still move along with the bottle cap. The rubber block can be pulled out by a certain distance, at the moment, the ejector rod is matched with the clamping piece and the fixing block to still fix the rubber block well, and the utilization rate of the rubber block is high.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, and particularly relates to a single-head capping machine for preventing the cap from falling off. Background Technique

[0002] In industries such as food and pharmaceuticals, capping equipment is often required to automatically screw and seal bottle products. Compared with the traditional manual capping method, the working efficiency of the capping machine is greatly improved.

[0003] A capping machine in the prior art, such as a capping machine disclosed in a Chinese patent with the patent number CN217947628U, includes a frame. A column is fixedly connected to the top of the frame. A guide groove is formed inside the column. A sliding plate is slidably connected inside the guide groove. A first threaded hole is formed inside the sliding plate. A first turntable is provided at the top of the column. A first lead screw adapted to the first threaded hole is fixedly connected to the bottom of the first turntable. A first motor is installed on one side of the column. A second turntable is provided at the output end of the first motor. The first turntable and the second turntable are connected by a first belt. A working plate is provided on one side of the sliding plate. The cross-sectional shape of the working plate is set as a T shape. The sliding plate and the working plate are connected by a locking bolt. A working motor is installed on the top of the working plate. A rotating rod is provided at the output end of the working motor. A disc is welded to the bottom of the rotating rod. A clamping groove is formed at the bottom of the disc. A capping plate is installed inside the clamping groove. A working bolt in contact with the capping plate is threadedly connected to one side of the disc.

[0004] Since the above capping machine lacks a cap pressing component, the phenomenon of the cap falling off easily occurs during capping. In view of the above problems, although some improvements have been proposed in the prior art, its cap pressing components are fixedly connected to the capping seat and rotate together with the capping seat and the cap. However, when the capping is about to be completed, at this time the cap has been installed with the bottle body, and the capping seat will have a certain relative movement with the cap. The cap pressing component will also have a certain relative movement with the top of the cap, resulting in relatively large friction and causing problems such as damage to the cap pressing part at the top of the cap. Damage is likely to cause quality problems and also affect the appearance of the cap.

[0005] At the same time, the capping jaws are also prone to relative movement with the cap when the capping is about to be completed, which easily causes wear of the rubber blocks inside the jaws. After a certain amount of wear of the rubber blocks, they cannot be well installed inside the jaws. At this time, only new rubber blocks can be replaced, resulting in low utilization rate. Summary of the Utility Model

[0006] Purpose of the Utility Model:

[0007] In order to overcome the problems existing in the prior art, the utility model provides a single-head capping machine which can prevent the cap from falling off. The capping machine is rotatably connected to the rotating seat through a bearing. When the capping is about to be completed, the capping machine can still move with the bottle cap without causing damage to the bottle cap. When the rubber block is worn out to a certain extent, the rubber block can be pulled outwards for a certain distance. At this time, the ejector rod cooperates with the clamping piece and the fixing block to still fix the rubber block well, and the utilization rate of the rubber block is high.

[0008] In order to solve the above problems, the utility model adopts the following technical solutions:

[0009] A single-head capping machine for preventing caps from falling off comprises a lifting mechanism, a capping mechanism, a bottle body fixing mechanism and a mounting seat, wherein the capping mechanism comprises a rotating seat, a plurality of mounting grooves arranged in the circumference of the rotating seat, a rotating shaft arranged in the mounting groove, a rotating member rotatably connected to the rotating shaft, a clamping member arranged at the bottom of the rotating member, a pushing block connected to the top of all rotating members for pushing the rotating members to rotate around the rotating shaft, a pushing shaft for pushing the pushing block to move, a cylinder shaft coaxially connected to the pushing shaft through a bearing, a cylinder providing power for the cylinder shaft, a first gear coaxially arranged with the rotating seat, a second gear arranged at the side end of the rotating seat meshing with the first gear, a first control motor for controlling the rotation of the second gear, a mounting frame, a pressure device arranged at the lower end of the pushing block and fixedly connected to the rotating seat The cover assembly comprises a rotating seat and a mounting frame, wherein the pressure cover assembly comprises a mounting block arranged in the middle of the rotating seat, a fixed shaft arranged at the lower end of the mounting block, a movable shaft slidably connected to the fixed shaft, a spring arranged between the fixed shaft and the movable shaft, the bottom end of the movable shaft is rotatably connected to a pressure block through a bearing, a groove is provided on the inner side of the clamping member, the side of the groove close to the center of the rotating seat is open, a clip is installed at the inner bottom end of the groove, a fixed block and a rubber block partially extending to the outer end of the groove are installed between the clip and the top surface of the groove, the fixed block is installed at the innermost side of the groove and its height is equal to the rubber block after being compressed during fixed installation, a threaded groove is provided on the bottom surface of the groove, and a push rod with an interference fit with the clip is threadedly connected in the threaded groove.

[0010] Preferably, the lifting mechanism comprises a second control motor arranged on the mounting seat, and a screw rod drivingly connected to the second control motor, and the screw rod is threadedly connected to the mounting frame.

[0011] Preferably, a vertical guide rod is provided on the mounting seat, and a guide groove adapted to the guide rod is provided on the mounting frame.

[0012] Preferably, the bottle body fixing mechanism comprises a placing table, the placing table is protruding upward and is provided with a convex block adapted to the bottom of the bottle body, an air suction channel is opened in the middle of the convex block, and an air pump is provided at the lower end of the air suction channel.

[0013] Preferably, the first control motor and the second control motor are servo motors.

[0014] Preferably, a rubber pad is provided at the lower end of the pressing block.

[0015] Beneficial effects: Compared with the prior art, the present utility model has the following advantages:

[0016] 1. The gland assembly includes a mounting block disposed in the middle of the rotating seat, a fixed shaft disposed at the lower end of the mounting block, a moving shaft slidably connected to the fixed shaft, a spring disposed between the fixed shaft and the moving shaft, and a pressing block rotatably connected to the bottom end of the moving shaft through a bearing. The gland is rotatably connected to the rotating seat through the bearing. When the capping is about to be completed, it can still move along with the bottle cap and will not damage the bottle cap.

[0017] 2. A groove is formed inside the clamping member. One side of the groove close to the center of the rotating seat is open. A clip is installed at the bottom end inside the groove. A fixing block and a rubber block partially extending outside the groove are installed between the clip and the top surface of the groove. The fixing block is installed at the innermost side of the groove and its height is equal to the compressed rubber block during fixed installation. A threaded groove is formed at the bottom surface of the groove, and a top rod in interference fit with the clip is threadedly connected in the threaded groove. When the rubber block is worn to a certain extent, the rubber block can be pulled outwards by a certain distance. At this time, the top rod, in cooperation with the clip and the fixing block, can still fix the rubber block well, and the utilization rate of the rubber block is high. Description of the Drawings

[0018] Figure 1 is a perspective view of the present utility model;

[0019] Figure 2 is an enlarged perspective view of the capping mechanism of the present utility model;

[0020] Figure 3 is an internal structure diagram of the capping mechanism of the present utility model;

[0021] Figure 4 is an enlarged perspective view of the lifting mechanism of the present utility model;

[0022] Figure 5 is an enlarged perspective view of the bottle body fixing mechanism of the present utility model;

[0023] Figure 6 is an internal structure diagram of the clamping member of the present utility model;

[0024] Description of the Reference Numerals:

[0025] 1. Cap-rotating mechanism; 101. Rotating base; 102. Installation groove; 103. Rotating shaft; 104. Rotating part; 105. Clamping part; 1051. Groove; 1052. Clip; 1053. Fixed block; 1054. Rubber block; 1055. Push rod; 106. Pushing block; 107. Cylinder shaft; 108. Cylinder; 109. First gear; 110. Second gear; 111. First control motor; 112. Mounting bracket; 113. Cap-pressing assembly; 1131. Mounting block; 1132. Fixed shaft; 1133. Moving shaft; 1134. Spring; 1135. Pressing block; 114. Guide groove; 2. Lifting mechanism; 21. Second control motor; 22. Lead screw; 3. Bottle body fixing mechanism; 31. Placing table; 32. Protrusion; 33. Suction channel; 34. Air pump; 4. Mounting seat; 41. Guide rod. Specific embodiments

[0026] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0027] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically stated, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

[0028] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0029] As Figures 1-6As shown, a single-head capping machine for preventing caps from falling off comprises a lifting mechanism 2, a capping mechanism 1, a bottle body fixing mechanism 3 and a mounting seat 4, wherein the capping mechanism 1 comprises a rotating seat 101, a plurality of mounting grooves 102 arranged in the circumference of the rotating seat, a rotating shaft 103 arranged in the mounting groove, a rotating member 104 rotatably connected to the rotating shaft 103, a clamping member 105 arranged at the bottom of the rotating member 104, and a driving member connected to the top of all the rotating members 104 for driving the rotating members 104 to rotate around the rotating shaft 103. block 106, a driving shaft for driving the driving block to move, a cylinder shaft 107 connected to the driving shaft through a bearing, a cylinder 108 providing power to the cylinder shaft, a first gear 109 coaxially arranged with the rotating seat 101, a second gear 110 arranged at the side end of the rotating seat 101 and meshing with the first gear 109, a first control motor 111 for controlling the rotation of the second gear, a mounting frame 112, and a gland assembly 113 arranged at the lower end of the driving block 108 and fixedly connected with the rotating seat 101, The rotating seat is rotatably connected to the mounting frame, the pressure cover assembly 113 includes a mounting block 1131 arranged in the middle of the rotating seat, a fixed shaft 1132 arranged at the lower end of the mounting block 1131, a moving shaft 1133 slidably connected to the fixed shaft, and a spring 1134 arranged between the fixed shaft 1132 and the moving shaft 1133. The bottom end of the moving shaft 1133 is rotatably connected to a pressure block 1135 through a bearing. A groove 1051 is opened on the inner side of the clamping member 105. The groove 1051 One side close to the center of the rotating seat 101 is open, and a clip 1052 is installed at the inner bottom end of the groove, and a fixing block 1053 and a rubber block 1054 partially extending to the outer end of the groove are installed between the clip 1052 and the top surface of the groove. The fixing block 1053 is installed at the innermost side of the groove and its height is equal to the rubber block 1054 after compression during fixed installation. A threaded groove is provided on the bottom surface of the groove, and a push rod 1055 with an interference fit with the clip 1052 is threadedly connected in the threaded groove.

[0030] The pressure cap is rotatably connected to the rotating seat through the bearing. When the capping is about to be completed, it can still move with the bottle cap without causing damage to the bottle cap. When the rubber block is worn out to a certain extent, the rubber block can be pulled outward for a certain distance. At this time, the ejector rod, the clamping piece and the fixing block can still fix the rubber block well, and the utilization rate of the rubber block is high.

[0031] In this embodiment, the lifting mechanism 2 includes a second control motor 21 disposed on the mounting seat 4 and a screw rod 22 drivingly connected to the second control motor, and the screw rod is threadedly connected to the mounting frame 112 .

[0032] In this embodiment, a vertical guide rod 41 is provided on the mounting seat, and a guide groove 113 adapted to the guide rod 41 is provided on the mounting frame 112 .

[0033] In this embodiment, the bottle body fixing mechanism 3 includes a placing table 31. The placing table 31 is provided with a convex block 32 that protrudes upward and is adapted to the bottom of the bottle body. An air suction channel 33 is formed in the middle of the convex block, and an air pump 34 is arranged at the lower end of the air suction channel 33.

[0034] With this structure, the bottle body can be well fixed on the placing table under the influence of negative pressure and will not shift during the process of screwing the cap.

[0035] In this embodiment, the first control motor 111 and the second control motor 21 are servo motors, which are used to precisely control the rotation.

[0036] In this embodiment, a rubber pad is arranged at the lower end of the pressing block 1135.

[0037] Working principle: First, place the bottle body on the protrusion of the placing table 31 and start the air pump to suck air. The bottle body is firmly fixed on the placing table under the action of negative pressure. The second control motor drives the lead screw to rotate, thereby driving the cap screwing mechanism to move downward to the upper end of the bottle body. At this time, the pressing cap assembly first presses the cap tightly, and then the air cylinder drives the pushing block to move, thereby driving the clamping member to clamp the cap. At this time, the first control motor drives the second gear to rotate, thereby driving the first gear to rotate. The first gear drives the rotating seat to rotate, thereby driving the clamping member to rotate to screw the cap, thus completing the screwing of the cap. When the rubber block is worn to a certain extent, move the ejector rod downward to loosen the rubber block, move the rubber block a certain distance out of the groove, and move the ejector rod upward to fix the rubber block. Due to the setting of the clamping piece and the fixing block, the rubber block and the fixing block form two fulcrums. Even if the rubber block moves to the outermost side, the situation of losing balance and being unable to fix the rubber block will not occur.

[0038] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solutions of the present invention, and to completely describe the technical solutions, purposes and effects of the present invention. The purpose is to enable the public to understand the disclosed content of the present invention more thoroughly and comprehensively, and it does not limit the protection scope of the present invention.

[0039] The above embodiments are not exhaustive listings based on the present invention. In addition, there may be multiple other embodiments not listed. Any substitution and improvement made on the basis of not violating the concept of the present invention fall within the protection scope of the present invention.

Claims

1. A single-head capping machine that prevents the cap from falling off, characterized in that: It includes a lifting mechanism (2), a cap-rotating mechanism (1), a bottle body fixing mechanism (3) and a mounting base (4). The cap-rotating mechanism (1) includes a rotating base (101), a plurality of mounting grooves (102) formed in the circumferential direction of the rotating base, a rotating shaft (103) disposed in the mounting groove, a rotating member (104) rotatably connected to the rotating shaft (103), a clamping member (105) disposed at the bottom of the rotating member (104), a pushing block (106) connected to the tops of all the rotating members (104) for pushing the rotating member (104) to rotate around the rotating shaft (103), a pushing shaft for pushing the pushing block to move, a cylinder shaft (107) rotatably and coaxially connected to the pushing shaft through a bearing, a cylinder (108) for providing power to the cylinder shaft, a first gear (109) coaxially disposed with the rotating base (101), a second gear (110) engaged with the first gear (109) and disposed at the side end of the rotating base (101), a first control motor (111) for controlling the rotation of the second gear, a mounting frame (112), and a capping assembly (113) disposed at the lower end of the pushing block (106) and fixedly connected to the rotating base (101). The rotating base is rotatably connected to the mounting frame. The capping assembly (113) includes a mounting block (1131) disposed in the middle of the rotating base, a fixed shaft (1132) disposed at the lower end of the mounting block (1131), a moving shaft (1133) slidably connected to the fixed shaft, and a spring (1134) disposed between the fixed shaft (1132) and the moving shaft (1133). The bottom end of the moving shaft (1133) is rotatably connected with a pressing block (1135) through a bearing. A groove (1051) is formed inside the clamping member (105). One side of the groove (1051) close to the center of the rotating base (101) is an opening. A clamping piece (1052) is installed at the inner bottom end of the groove. A fixing block (1053) and a rubber block (1054) partially extending outside the groove are installed between the clamping piece (1052) and the top surface of the groove. The fixing block (1053) is installed at the innermost side of the groove and its height is equal to the compressed rubber block (1054) during fixed installation. A threaded groove is formed in the bottom surface of the groove, and a ejector rod (1055) in interference fit with the clamping piece (1052) is threadedly connected in the threaded groove.

2. The single-head capping machine for preventing the cover from falling off according to claim 1, wherein: The lifting mechanism (2) includes a second control motor (21) disposed on the mounting base (4) and a lead screw (22) drivingly connected to the second control motor. The lead screw is threadedly connected to the mounting frame (112).

3. A single-head capping machine for preventing the cap from falling off according to claim 1, characterized in that: A vertical guide rod (41) is disposed on the mounting base, and a guide groove (114) adapted to the guide rod (41) is disposed on the mounting frame (112).

4. A single-head capping machine for preventing the cap from falling off according to claim 1, characterized in that: The bottle body fixing mechanism (3) includes a placing table (31). The placing table (31) is upwardly convexly provided with a convex block (32) adapted to the bottom of the bottle body. An air suction channel (33) is formed in the middle of the convex block. An air pump (34) is disposed at the lower end of the air suction channel (33).

5. A single-head capping machine for preventing the cap from falling off according to claim 1 or 2, characterized in that: The first control motor (111) and the second control motor (21) are servo motors.

6. The single-head capping machine for preventing the cap from falling off according to claim 1, wherein: A rubber pad is provided at the lower end of the briquette (1135).

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