Positioning mechanism and roller kiln conveying equipment thereof

Abstract

The utility model belongs to the technical field of roller kilns, and particularly relates to a positioning mechanism and roller kiln conveying equipment thereof, the equipment comprises two positioning rods arranged at an interval, and a positioning station is arranged between the two positioning rods; the two ends of the positioning rod are provided with a limiting block and an adjusting block respectively. A movable rod is rotationally arranged at the end of the adjusting block, and the other end of the movable rod extends in the direction of the limiting block. When the workpiece is located at the positioning station, the two positioning rods get close to each other oppositely, the two movable rods clamp the workpiece from the two sides respectively and rotate around the adjusting block, and after the movable rods rotate till the included angle between the movable rods and the adjusting block is an acute angle, the movable rods push the workpiece to abut against the limiting block. The limiting block and the movable rod are arranged on the positioning rod, so that when a workpiece is clamped, the movable rod can pre-clamp and position the workpiece to adjust the posture of the workpiece, and finally the workpiece is pressed on the limiting block to ensure that the posture of the workpiece is stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of roller hearth kilns, and particularly relates to a positioning mechanism and a roller hearth kiln conveying device thereof. Background Art

[0002] A roller hearth kiln, namely an archless kiln, is a tunnel kiln with a long and narrow cross-section, composed of a series of rollers arranged in parallel and crossing the cross-section of the kiln working channel to form a "roller path". The products are placed on the roller path and conveyed into the kiln as the rollers rotate, and the firing process is completed in the kiln. During the firing process, to prevent the damage and contamination of the green body and glaze surface by gases and harmful substances, the materials are placed in a container made of refractory materials for roasting, and this container is called a sagger.

[0003] After the sagger is subjected to high-temperature treatment in the furnace body, the sagger cover needs to be removed, and then the materials in the sagger are extracted by vacuum. In the above process, it is necessary to position the sagger on the roller equipment for conveying the sagger, and then open the sagger and extract the materials.

[0004] Refer to Figure 1 , which is a positioning component in the prior art. It clamps the sagger on the roller path through a cylinder and a clamp. However, to ensure that the sagger is clamped neither too early nor too late, the clamp is designed wider than the sagger. Therefore, there is a moving space for the sagger between the two clamps. On the continuously conveying roller path, the sagger will change its posture as the roller moves, resulting in the situation that the sagger may have an incorrect posture during clamping and positioning, which affects the subsequent lid removal.

[0005] Therefore, it is urgent to design a positioning mechanism and a roller hearth kiln conveying device thereof to solve the technical problem that the posture of the sagger changes and the positioning deviates when the sagger is positioned on the roller path. Content of the Utility Model

[0006] The embodiments of the present disclosure at least provide a positioning mechanism and a roller hearth kiln conveying device thereof.

[0007] In a first aspect, the embodiments of the present disclosure provide a positioning mechanism, including: two positioning rods arranged at intervals, with a positioning station between the two positioning rods;

[0008] Both ends of the positioning rod are respectively provided with a limit block and an adjustment block; where

[0009] An active rod is rotatably arranged at the end of the adjustment block, and the other end of the active rod extends towards the limit block; where

[0010] When the workpiece is located at the positioning station, the two positioning rods approach each other, and the two active rods respectively clamp the workpiece from both sides and rotate around the adjustment block. After the active rod rotates to an acute angle with the adjustment block, the active rod pushes the workpiece against the limit block.

[0011] In an alternative embodiment, the movable rod is elastically connected to the adjusting block.

[0012] In an alternative embodiment, the length of the movable rod is greater than the length of the adjusting block;

[0013] The length of the movable rod is less than the sum of the lengths of the positioning rod and the adjusting block.

[0014] In an alternative embodiment, the positioning mechanism further includes a linear moving pair, and the movable end of the linear moving pair is connected to the middle of the positioning rod.

[0015] In an alternative embodiment, the distance between the two limit blocks is equal to the stroke length of the two positioning rods.

[0016] In a second aspect, the embodiments of the present disclosure further provide a roller kiln conveying device using the positioning mechanism as described above, which includes: a conveying frame, on which a plurality of conveying rollers are arranged at equal intervals;

[0017] The positioning mechanism is installed on the conveying frame.

[0018] In an alternative embodiment, a driving member and a transmission assembly are installed on the conveying frame, and the transmission assembly is in transmission connection with each conveying roller.

[0019] In an alternative embodiment, the transmission assembly includes a reducer and a transmission chain. The input end of the reducer is connected to the output end of the driving member, and the output end of the reducer is connected to the transmission chain;

[0020] A sprocket is installed on one side of the conveying roller;

[0021] The transmission chain is sequentially connected to each sprocket.

[0022] The beneficial effect of the present utility model is that by providing a limit block and a movable rod on the positioning rod, when clamping a workpiece, the movable rod can first pre-clamp and position the workpiece to adjust the posture of the workpiece, and finally press the workpiece against the limit block to ensure the stable posture of the workpiece.

[0023] Other features and advantages of the present utility model will be described in the following specification, and part of them will become obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the specification, claims and drawings.

[0024] To make the above objectives, features and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a perspective view of a positioning component in the prior art;

[0027] Figure 2 It is a top view of a roller kiln conveying device provided by an embodiment of the present disclosure;

[0028] Figure 3 It is a structural schematic diagram of a positioning mechanism provided by an embodiment of the present disclosure;

[0029] Figure 4 It is a schematic diagram of the clamping state of a positioning mechanism provided by an embodiment of the present disclosure;

[0030] Figure 5 It is a structural schematic diagram of a conveying rack provided by an embodiment of the present disclosure.

[0031] In the figure:

[0032] 1. positioning rod; 2. positioning station; 3. limit block; 4. adjusting block; 5. movable rod; 6. linear moving pair;

[0033] 7. conveying rack; 71. conveying roller; 72. driving member; 73. transmission assembly; 731. reducer; 732. transmission chain;

[0034] 8. cylinder; 81. fixture. Specific Embodiments

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0036] It has been found through research that in the related art, referring to Figure 1, the positioning component clamps the sagger on the roller track through the cylinder 8 in cooperation with the clamp 81. However, in order to ensure that the sagger is clamped neither too early nor too late, the clamp 81 is designed to be wider than the sagger. Therefore, there is a movable space for the sagger to move between the two clamps 81. On the continuously conveying roller track, the posture of the sagger will change with the movement of the roller track, resulting in the situation that the sagger may have an incorrect posture during clamping and positioning, which will affect the subsequent lid removal.

[0037] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components can be exaggerated or reduced.

[0039] Based on the above research, in order to solve the above technical problems, referring to Figure 2 , at least one embodiment provides a positioning mechanism, including: two positioning rods 1 arranged at intervals, with a positioning station 2 between the two positioning rods 1. The positioning station 2 is adapted to position the workpiece when it passes through. The two ends of the positioning rod 1 are respectively provided with a limit block 3 and an adjustment block 4. The limit block 3 is adapted to limit the workpiece, and the end of the adjustment block 4 is rotatably provided with a movable rod 5. The other end of the movable rod 5 extends towards the limit block 3. When the workpiece is located at the positioning station 2, the two positioning rods 1 move closer to each other, and the two movable rods 5 respectively clamp the workpiece from both sides and rotate around the adjustment block 4. After the movable rod 5 rotates to an acute angle with the adjustment block 4, the movable rod 5 pushes the workpiece against the limit block 3. At this time, the workpiece is completely pressed and limited, and the posture of the workpiece is stable. By arranging the limit block 3 and the movable rod 5 on the positioning rod 1, when clamping the workpiece, the movable rod 5 can first pre-clamp and position the workpiece to adjust the posture of the workpiece, and finally press the workpiece against the limit block 3 to ensure the stable posture of the workpiece.

[0040] Referring to Figure 3 , in some embodiments, in order to enable the movable rod 5 to return to its original state after clamping and positioning the workpiece, the movable rod 5 is elastically connected to the adjustment block 4, so that after the clamping is completed, the included angle between the movable rod 5 and the adjustment block 4 is restored, and then the subsequent work can continue. Preferably, the elastic connection between the movable rod 5 and the adjustment block 4 can adopt a torsion spring connection. Under the action of the torsion spring, the movable rod 5 keeps tilting towards the positioning station in the normal state. When the movable rod 5 contacts the workpiece, as the positioning rod 1 continues to approach the workpiece, the movable rod 5 rotates towards the positioning rod 1 under the action of the workpiece and applies an elastic force to the workpiece to pre-clamp the workpiece and promote the posture of the workpiece to return to normal.

[0041] Reference Figure 4 In some embodiments, the length of the movable rod 5 is greater than that of the adjusting block 4. After the movable rod 5 rotates to form an acute angle with the adjusting block 4, the free end of the movable rod 5 abuts against the positioning rod 1 to form a stable triangular structure. Therefore, the length of the movable rod 5 is less than the sum of the lengths of the positioning rod 1 and the adjusting block 4 to ensure that the positioning rod 1, the adjusting block 4, and the movable rod 5 can always form a triangle.

[0042] Reference Figure 4 In some embodiments, in order to achieve the effect of the two positioning rods 1 approaching each other, the positioning mechanism further includes a linear motion pair 6. The linear motion pair 6 can be a cylinder. The movable end of the linear motion pair 6 is connected to the middle of the positioning rod 1. When the workpiece is located at the positioning station 2, the two positioning rods 1 approach each other to clamp the workpiece. Optionally, the linear motion pair 6 is a cylinder, and the movable end of the cylinder is connected to the positioning rod 1 to achieve the above effect.

[0043] Reference Figure 4 In some embodiments, in order to prevent the two limit blocks 3 from interfering with each other when following the two positioning rods 1 approaching each other and thus unable to approach further, the distance between the two limit blocks 3 is equal to the stroke length of the two positioning rods 1.

[0044] Reference Figure 5 At least one embodiment provides a roller kiln conveying device, including: the positioning mechanism as described above. The roller kiln conveying device further includes a conveying frame 7 provided with a plurality of conveying rollers 71 at equal intervals. The conveying rollers 71 are adapted to convey workpieces, and the workpieces are preferably saggers. The positioning mechanism is installed on the conveying frame 7 to position and clamp the workpieces to ensure the stable posture of the workpieces.

[0045] Reference Figure 5 In some embodiments, a driving member 72 and a transmission assembly 73 are installed on the conveying frame 7. The transmission assembly 73 is in transmission connection with each conveying roller 71. The driving member 72 drives the transmission assembly 73 to rotate, and then drives the conveying rollers 71 to rotate to achieve the conveying effect of the workpieces. The driving member 72 can be a motor. Specifically, the transmission assembly 73 includes a speed reducer 731 and a transmission chain 732. The input end of the speed reducer 731 is connected to the output end of the driving member 72, the output end of the speed reducer 731 is connected to the transmission chain 732, and a sprocket is installed on one side of the conveying roller 71. The transmission chain 732 is sequentially connected to each sprocket. During operation, the driving member 72 drives the speed reducer 731 to output torque, and further drives the sprockets connected by the transmission chain 732 to rotate through the speed reducer 731, so that each conveying roller 71 rotates to convey the workpieces.

[0046] In several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Based on the ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A positioning mechanism, characterized in that, Comprising: Two positioning rods (1) arranged at intervals, with a positioning station (2) between the two positioning rods (1); Both ends of the positioning rod (1) are respectively provided with a limiting block (3) and an adjusting block (4); where An end of the adjusting block (4) is rotatably provided with a movable rod (5), and the other end of the movable rod (5) extends towards the limiting block (3); where When the workpiece is located at the positioning station (2), the two positioning rods (1) approach each other, the two movable rods (5) respectively clamp the workpiece from both sides, and rotate around the adjusting block (4). After the movable rod (5) rotates to an acute angle with the adjusting block (4), the movable rod (5) pushes the workpiece to abut against the limiting block (3).

2. The positioning mechanism according to claim 1, characterized in that The movable rod (5) is elastically connected to the adjusting block (4).

3. The positioning mechanism according to claim 1, characterized in that The length of the movable rod (5) is greater than the length of the adjusting block (4); The length of the movable rod (5) is less than the sum of the lengths of the positioning rod (1) and the adjusting block (4).

4. The positioning mechanism according to claim 1, characterized in that The positioning mechanism further includes a linear motion pair (6), and the movable end of the linear motion pair (6) is connected to the middle of the positioning rod (1).

5. The positioning mechanism according to claim 1, characterized in that The linear distance between the two limiting blocks (3) is equal to half of the stroke length of the two positioning rods (1).

6. A roller hearth kiln conveying device, characterized in that, Using the positioning mechanism according to any one of claims 1-5, which includes: A conveying rack (7) on which a plurality of conveying rollers (71) are arranged at equal intervals; The positioning mechanism is installed on the conveying rack (7).

7. The roller kiln conveying equipment according to claim 6, characterized in that A driving member (72) and a transmission assembly (73) are installed on the conveying rack (7), and the transmission assembly (73) is in transmission connection with each conveying roller (71).

8. The roller kiln conveying equipment according to claim 7, characterized in that The transmission assembly (73) includes a reducer (731) and a transmission chain (732), the input end of the reducer (731) is connected to the output end of the driving member (72), and the output end of the reducer (731) is connected to the transmission chain (732); A sprocket is installed on one side of the conveying roller (71); The transmission chain (732) is sequentially connected to each sprocket.

Images