Carrier positioning structure of annular line conveying mechanism

Abstract

The utility model discloses a carrier positioning structure of an annular line conveying mechanism, which comprises a machine frame, an annular conveying chain arranged on the machine frame, an annular guide rail arranged on the machine frame and corresponding to and matched with the chain, a connecting block arranged on the chain, a sliding seat fixed at the outer end of the connecting block, the sliding seat inserted and sleeved on the annular guide rail, and a carrier arranged on the annular guide rail. A carrier is fixed on the top surface of the sliding seat; a connecting positioning block is fixed to the outer wall face of the sliding seat, a bearing is movably connected to the left portion or the right portion of the outer wall face of the connecting positioning block, a positioning air cylinder is fixed to the position, corresponding to the bearing, of the top face of the rack, a positioning block is fixed to a push rod of the positioning air cylinder, and a positioning groove extending downwards is formed in the middle of the top face of the positioning block. And the bearings are inserted into the corresponding positioning grooves, so that when the carrier is moved to a station, the carrier can be positioned and prevented from moving, and normal and accurate proceeding of the following steps of placing small balls, pasting films and the like is ensured.

Description

Technical field:

[0001] The utility model relates to the technical field of freeze-dried ball processing equipment, and more specifically to a carrier positioning structure of a ring-shaped line conveying mechanism. Background technology:

[0002] Freeze-dried balls, also called freeze-dried beads, liquid nitrogen dot balls, refer to the reagents / drug solutions that are dotted into liquid nitrogen through a professional precision micro pump, so that they are quickly frozen into small solid spheres with uniform and regular shapes at an extremely short and low temperature, and then collected and placed in a small freeze-drying equipment for frozen storage.

[0003] In the existing freeze-dried ball processing process, the freeze-dried balls need to be placed on a tray, and the tray is installed on a carrier, and the carrier is now on a conveyor chain. After the carrier moves to the corresponding workstation, it is necessary to place the balls and apply film at a fixed workstation. Since the positioning accuracy of the chain is not high, the connection between the carrier and the chain is not a completely rigid connection (it can be considered a semi-rigid connection). For example, during the film application process, the carrier may shake. Therefore, it is necessary to ensure that the position of the carrier at the workstation is relatively accurate to ensure the accuracy of actions such as placing the balls. Utility model content:

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a carrier positioning structure of a ring-shaped line conveying mechanism, which can position the carrier when it is moved to a work station to prevent it from moving, thereby ensuring the normal and accurate implementation of subsequent steps such as placing small balls and applying films.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A carrier positioning structure of an annular line conveying mechanism comprises a frame, a chain for annular conveying is installed on the frame, an annular guide rail corresponding to and cooperating with the chain is installed on the frame, a connecting block is installed on the chain, a sliding seat is fixed to the outer end of the connecting block, the sliding seat is inserted into the annular guide rail, and a carrier is fixed to the top surface of the sliding seat; a connecting positioning block is fixed to the outer wall surface of the sliding seat, a bearing is movably connected to the left or right part of the outer wall surface of the connecting positioning block, a positioning cylinder is fixed to the top surface of the frame corresponding to the bearing, a positioning block is fixed to the push rod of the positioning cylinder, a positioning groove extending downward is formed in the middle of the top surface of the positioning block, and the bearing is inserted into the corresponding positioning groove.

[0007] A vertical guide groove is formed on the inner wall surface of the positioning block, and a vertical protrusion strip is formed on the outer wall surface of the positioning cylinder. The vertical protrusion strip is inserted into the corresponding vertical guide groove.

[0008] A downwardly extending mounting groove is formed in the middle of the top surface of the rear part of the connecting block, and two vertical mounting grooves are formed on the bottom surface of the mounting groove. The corresponding two pin shafts of the chain are inserted into the corresponding vertical mounting grooves. The rear bottom surface of the connecting block is above the corresponding chain plate of the chain. A copper sleeve is fixed on the outer side wall of the pin shaft. There is a spacing between the copper sleeve and the inner side wall of the vertical mounting groove. The upper ends of the two pin shafts extend into the mounting groove and are fixed on the same elastic locking plate.

[0009] The outstanding effects of the utility model are:

[0010] It can position the carrier when it moves to the workstation to prevent it from moving, ensuring that subsequent steps such as placing balls and applying films are carried out normally and accurately. Description of the drawings:

[0011] Figure 1 It is a partial structural schematic diagram of the utility model;

[0012] Figure 2 It is a partial structural schematic diagram of the utility model without a carrier;

[0013] Figure 3 yes Figure 2 A partial enlarged view of

[0014] Figure 4 It is a schematic diagram of the local structure at the connection block. Specific implementation method:

[0015] For example, see Figures 1 to 4 As shown, a carrier positioning structure of a circular line conveying mechanism includes a frame 10, on which a chain 20 for circular conveying is installed. Its specific structure is that vertically extending rotating shafts are installed on the left and right parts of the frame 10, and a transmission sprocket is fixed on the upper part of the rotating shaft. The chain 20 is tensioned on the two sprockets, and a transmission gear is installed on the bottom of one of the rotating shafts. A servo motor and other driving structures are installed at the lower part of the frame 10, and a driving gear is fixed on the output shaft of the servo motor. The driving gear is meshed with the transmission gear to realize drive rotation. It can also be operated in other driving modes, which will not be described in detail here.

[0016] An annular guide rail 11 is fixed on the top surface of the frame 10, which corresponds to and cooperates with the chain 20. The annular guide rail 11 is located outside the chain 20. The connecting block 30 is installed on the chain 20. A slide seat 40 is fixed to the outer end of the connecting block 30. A slide groove is formed in the middle of the bottom surface of the slide seat 40. The upper part of the annular guide rail 11 is inserted into the slide groove. The top surface of the slide seat 40 is fixed with a carrier 50 by bolts.

[0017] A connecting positioning block 41 is fixed on the outer wall surface of the slide seat 40, and a connecting shaft is fixed on the left and right parts of the outer wall surface of the connecting positioning block 41, and a bearing 42 is installed on the connecting shaft. A positioning cylinder 12 is fixed on the top surface of the frame 10 corresponding to the bearing 42, and a positioning block 13 is fixed on the push rod of the positioning cylinder 12. A positioning groove 14 extending downward is formed in the middle of the top surface of the positioning block 13, and the bearing 42 is inserted into the corresponding positioning groove 14. Among them, a limit block can be installed on one side of the positioning block 13, and a limit frame is fixed on the top surface of the top plate of the frame 10 on one side of the positioning cylinder 12. A vertical screw-connected through hole is formed on the top transverse block of the limit frame, and the limit bolt is screwed in the vertical screw-connected through hole. The bottom end of the screw portion of the limit bolt extends out of the bottom surface of the top transverse block and faces the limit block. The top surface of the limit block is pressed against the bottom end of the screw portion of the limit bolt to achieve limiting. By rotating the limit bolt, the length of the bottom end of the screw portion extending out of the top transverse block can be adjusted to adjust the lifting height of the positioning block 13 to achieve the position adjustment of the limit. After the adjustment is completed, tighten the locking nut screwed on the upper part of the screw portion of the limit bolt so that the bottom surface of the locking nut is pressed against the top surface of the top transverse block to achieve locking.

[0018] The left and right sides of the top of the positioning groove 14 are guide walls extending obliquely outward and upward. This structure ensures that the bearing 42 can move into the positioning groove 14 along the guide walls when there is a certain deviation.

[0019] A vertical guide groove is formed on the inner wall surface of the positioning block 13, and a vertical protrusion strip 121 is formed on the outer wall surface of the positioning cylinder 12. The vertical protrusion strip 121 is inserted into the corresponding vertical guide groove.

[0020] A downwardly extending mounting groove 31 is formed in the middle of the top surface of the rear part of the connecting block 30, and two vertical mounting grooves 32 are formed on the bottom surface of the mounting groove 31. The corresponding two pins of the chain 20 are inserted into the corresponding vertical mounting grooves 32. The rear bottom surface of the connecting block 30 is above the corresponding chain plate of the chain 20. A copper sleeve 33 is fixed on the outer wall of the pin, and there is a gap between the copper sleeve 33 and the inner wall of the vertical mounting groove 32. The upper ends of the two pins extend into the mounting groove 31 and are fixed on the same elastic locking piece 34. An upper cover plate is fixed on the top surface of the rear part of the connecting block 30, and the upper cover plate covers the top of the mounting groove 31.

[0021] In this embodiment, the positioning cylinders 12 are installed on the top surface of the top plate of the frame 10 at the processing station. When the carrier 50 moves to the designated station, the push rod of the positioning cylinder 12 pushes the bearing 42 to be inserted into the corresponding positioning groove 14 to achieve positioning. Since the chain 20 has a certain slight deviation during transportation, it cannot be very accurate. At this time, the bearing 42 moves along the guide wall to the positioning groove 14. Since there is a gap between the copper sleeve 33 and the inner wall of the vertical installation groove 32, the connecting block 30 can achieve floating position fine-tuning on the chain 20. In this way, it becomes possible for the bearing 42 to move along the guide wall to the positioning groove 14, thereby achieving accurate positioning and ensuring the subsequent processing effect. The structure is simple and the effect is good.

[0022] The above description is only a preferred embodiment of the present invention. It is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A carrier positioning structure of an annular line conveying mechanism, comprising a frame (10), on which a chain (20) for annular conveying is mounted, characterized in that: The frame (10) is provided with an annular guide rail (11) corresponding to and matching the chain (20), a connecting block (30) is provided on the chain (20), a sliding seat (40) is fixed to the outer end of the connecting block (30), the sliding seat (40) is inserted into the annular guide rail (11), and a carrier (50) is fixed to the top surface of the sliding seat (40); A connecting positioning block (41) is fixed on the outer wall surface of the slide seat (40); a bearing (42) is movably connected to the left or right part of the outer wall surface of the connecting positioning block (41); a positioning cylinder (12) is fixed on the top surface of the frame (10) corresponding to the bearing (42); a positioning block (13) is fixed on the push rod of the positioning cylinder (12); a positioning groove (14) extending downward is formed in the middle of the top surface of the positioning block (13); and the bearing (42) is inserted into the corresponding positioning groove (14).

2. The carrier positioning structure of the circular line conveying mechanism according to claim 1, characterized in that: The left and right sides of the top of the positioning groove (14) are guide wall surfaces extending obliquely outward and upward.

3. The carrier positioning structure of the circular line conveying mechanism according to claim 1, characterized in that: A vertical guide groove is formed on the inner wall surface of the positioning block (13), and a vertical protrusion strip (121) is formed on the outer wall surface of the positioning cylinder (12), and the vertical protrusion strip (121) is inserted into the corresponding vertical guide groove.

4. The carrier positioning structure of the circular line conveying mechanism according to claim 1, characterized in that: A connecting shaft is fixed to the left and right parts of the outer wall surface of the connecting positioning block (41), and a bearing (42) is installed on the connecting shaft.

5. The carrier positioning structure of the circular line conveying mechanism according to claim 1, characterized in that: A downwardly extending mounting groove (31) is formed in the middle of the top surface of the rear part of the connecting block (30), and two vertical mounting grooves (32) are formed on the bottom surface of the mounting groove (31). Two corresponding pin shafts of the chain (20) are inserted into the corresponding vertical mounting grooves (32). The rear bottom surface of the connecting block (30) is located above the corresponding chain plate of the chain (20). A copper sleeve (33) is fixed on the outer side wall of the pin shaft. There is a spacing between the copper sleeve (33) and the inner side wall of the vertical mounting groove (32). The upper ends of the two pin shafts extend into the mounting groove (31) and are fixed on the same elastic locking plate (34).

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