Automatic rubber covering mechanism

Abstract

The present invention aims to provide an automatic rubber-wrapping mechanism that is simple to operate, can reduce the labor intensity of workers, can improve work efficiency, and has good product quality stability. The present invention includes a workbench, a downward pressure cylinder, a lifting cylinder, a product support block, and two wedge blocks. The product support block is floatingly arranged in a clearance groove provided on the workbench, and two wedge blocks are relatively floatingly arranged on both sides of the clearance groove and matched with the product support block. The downward pressure cylinder is arranged on the workbench, and the downward pressure cylinder is located above the clearance groove and the output end is matched with the product support block. The lifting cylinder is located below the workbench and the output end penetrates into the workbench and matches with the two wedge blocks. The present invention is applied to the technical field of production equipment.

Description

Technical Field

[0001] The invention relates to the technical field of production equipment, in particular to an automatic rubber covering mechanism. Background Art

[0002] A leather rod is a product composed of an iron core and a rubber sheet, which is formed by wrapping the rubber sheet around the outer cylindrical surface of the iron core and fixing it. Since the iron core in the leather rod has set specifications, iron cores of different lengths and diameters are used according to production requirements, and the rubber sheet needs to be produced according to the specifications of the iron core. Generally speaking, in order to facilitate production, the length of the rubber sheet is unlimited, that is, it is produced using coiled materials or straight long strips of raw materials. During production, the raw materials are cut and separated into suitable blocks of rubber sheet, so that each piece of rubber sheet corresponds to one iron core, and then the rubber sheeting process is carried out.

[0003] At present, in enterprises, rubber coating is usually carried out manually. During the process of rubber coating, workers need to clamp the iron core with clamping tools such as pliers, then cover the rubber coating on the iron core, and use force to butt the two ends of the rubber coating as much as possible. However, the manual rubber coating work is labor-intensive for workers and has low efficiency. It is also difficult to butt the two ends of the rubber coating tightly during rubber coating, resulting in poor product quality stability. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an automatic rubber covering mechanism which is simple to operate, can reduce the labor intensity of workers, can improve work efficiency and has good product quality stability.

[0005] The technical solution adopted by the present invention is: the present invention includes a workbench, a downward pressure cylinder, a lifting cylinder, a product support block and two wedge blocks, the product support block is floatingly arranged in a makeshift groove opened on the workbench, the two wedge blocks are relatively floatingly arranged on both sides of the makeshift groove and cooperate with the product support block, the downward pressure cylinder is arranged on the workbench, the downward pressure cylinder is located above the makeshift groove and the output end cooperates with the product support block, the lifting cylinder is located below the workbench and the output end penetrates into the workbench and cooperates with the two wedge blocks.

[0006] Furthermore, the workbench includes a mounting seat, a fixing block, a positioning plate and a product seat which are arranged in sequence from bottom to top, the clearance groove is opened on the product seat, two floating transverse grooves are opened on the product seat, the two floating transverse grooves are located on both sides of the clearance groove and are connected to the clearance groove, and the wedge block is floatingly arranged in the floating transverse groove through a reset spring.

[0007] Furthermore, the lifting cylinder is located below the mounting seat and the output end passes through the mounting seat and the fixed block and is provided with a connecting plate, both ends of the connecting plate are provided with lifting blocks, both ends of the positioning plate are provided with lifting grooves, and the lifting blocks pass through the lifting grooves and cooperate with the inclined surfaces of the wedge blocks.

[0008] Furthermore, a product support bar is floatingly provided at the front end of the fixed block, the upper end of the product support bar passes through the positioning plate and the product seat and cooperates with the give way groove, a downward pressure groove with an inclined bottom groove surface is opened in the middle of the product support bar, a transverse cylinder is provided at the rear end of the mounting seat, and a downward pressure round rod is provided at the output end of the transverse cylinder, and the downward pressure round rod passes through the positioning plate and cooperates with the downward pressure groove.

[0009] Furthermore, a step groove connected to the give-way groove is provided at the lower end of the product seat, the upper end of the product support block passes through the step groove and is located in the give-way groove, the lower end of the product support block is provided with a limit step matched with the step groove, a telescopic spring is provided between the limit step and the step groove, two guide blocks are provided at the lower end of the limit step, the two guide blocks pass through the positioning plate and cooperate with the connecting plate, and a floating spring is provided between the connecting plate and the guide block.

[0010] Furthermore, a support frame is provided on the mounting seat, the downward pressure cylinder is provided on the support frame, the output end of the downward pressure cylinder passes through the support frame and is provided with a downward pressure block, the lower end of the downward pressure block is provided with a product downward pressure strip that cooperates with the product support block, and the lower end of the product downward pressure strip is provided with an arc groove.

[0011] Furthermore, a supporting circular groove is provided at the upper end of the product support bar, a through groove matched with the product support bar is provided on the positioning plate, a locking through hole connected with the through groove is provided on the front end face of the positioning plate, and a locking column is provided at the front end of the pressing round rod, and the locking column is matched with the locking through hole.

[0012] Furthermore, the fixed block is provided with a square groove adapted to the connecting plate, a vertical spring is arranged between the connecting plate and the positioning plate, the fixed block is provided with a plurality of positioning pins matched with the positioning plate, and the positioning plate is provided with a plurality of guide pins matched with the product seat.

[0013] Furthermore, blocking seats are provided at both ends of the positioning plate, and the two blocking seats are located on both sides of the product seat and cooperate with the wedge block.

[0014] Furthermore, two limiting plates are arranged at the upper end of the product seat, and the two limiting plates are symmetrically arranged on both sides of the giving way groove, and rubber limiting grooves are opened on the inner sides of the two limiting plates.

[0015] The beneficial effects of the present invention are as follows: the present invention comprises a workbench, a pressing cylinder, a lifting cylinder, a product support block and two wedge blocks; the workbench is used for placing the rubber; a clearance groove is provided on the workbench for the product support block to float up and down; the product support block is located in the clearance groove for supporting the product; the two wedge blocks are located on both sides of the clearance groove and are arranged to float laterally, and are used to perform rubber pressing on the product, thereby achieving rubber covering; the pressing cylinder is arranged on the workbench and above the clearance groove, and is used to press the product downward to achieve automatic rubber covering; the lifting cylinder is located below the workbench and the output end passes through the workbench and cooperates with the two wedge blocks, and is used to drive the two wedge blocks to perform relative pressing movement, thereby enabling rubber pressing action on the product. When working, place the rubber with the adhesive surface facing upward on the clearance groove of the workbench. At this time, the rubber will not sink into the clearance groove due to the support of the product support block. Then place the product on the rubber, and then press the cylinder down to press the product with its output end, and press the product together with the rubber and the product support block into the clearance groove. During the pressing process, the two ends of the rubber will be restricted by the clearance groove and will roll up, so as to stick to the lower end and both sides of the product. After pressing into place, the lifting cylinder is driven, and the output end of the lifting cylinder drives the two blocks The wedge blocks move relative to each other and are inserted into the clearance grooves and contact with the rubber, forcing the two ends of the rubber to be pressed and attached to the surface of the product. At the same time, the downward pressure cylinder rises, and the product support block is pressed by the wedge block and will not be lifted up. The wedge block continues to adhere the rubber to the product under the continuous drive of the lifting cylinder, and finally the two ends of the rubber will be adhered to each other, so as to be firmly adhered to the product. After the rubber is bonded, the lifting cylinder is reset, and the two wedge blocks are reset and no longer restrict the product and the product support block. The product support block can be reset to take out the product. As can be seen from the above, the overall structure of the present invention is compact, and only the material discharging and taking action is required, which is simple to operate. The cylinder drive is used to realize the automatic rubber wrapping work, which can reduce the labor intensity of the workers, and the rubber wrapping work can be completed quickly, which can improve work efficiency. The cylinder drives the wedge block to move synchronously to press the rubber, which has good consistency and good product quality stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 is an exploded view of the present invention;

[0018] Figure 3 is a cross-sectional view of the present invention;

[0019] Figure 4is a cross-sectional view of the present invention from another angle;

[0020] Figure 5 It is an exploded view of a part of the structure of the present invention;

[0021] Figure 6 It is an exploded view of a part of the structure of the present invention from another angle. DETAILED DESCRIPTION

[0022] like Figures 1 to 6As shown, in this embodiment, the present invention includes a workbench 1, a pressing cylinder 2, a lifting cylinder 3, a product support block 4 and two wedge blocks 5. The product support block 4 is floatingly arranged in a clearance groove 6 opened on the workbench 1, and the two wedge blocks 5 are relatively floatingly arranged on both sides of the clearance groove 6 and cooperate with the product support block 4. The pressing cylinder 2 is arranged on the workbench 1, and the pressing cylinder 2 is located above the clearance groove 6 and the output end cooperates with the product support block 4. The lifting cylinder 3 is located below the workbench 1 and the output end penetrates into the workbench 1 and cooperates with the two wedge blocks 5. The present invention includes a workbench 1, a pressing cylinder 2, a lifting cylinder 3, a product support block 4 and two wedge blocks 5. The workbench 1 is used for placing rubber. A clearance groove 6 is opened on the workbench 1 for the product support block 4 to float up and down. The product support block 4 is located in the clearance groove 6 for supporting the product; the two wedge blocks 5 are located on both sides of the clearance groove 6 and are arranged to float laterally, and are used to press the rubber on the product to achieve rubber covering; the pressing cylinder 2 is arranged on the workbench 1 and above the clearance groove 6, and is used to press the product downward to achieve automatic rubber covering; the lifting cylinder 3 is located below the workbench 1 and the output end passes through the workbench 1 to cooperate with the two wedge blocks 5, and is used to drive the two wedge blocks 5 to perform relative pressing movement, so that the product can be rubber pressed. During operation, the rubber is placed with the adhesive surface facing upward on the clearance groove 6 of the workbench 1. At this time, the rubber will not sink into the clearance groove 6 due to the support of the product support block 4. Then the product is placed on the rubber, and then the pressing cylinder 2 is driven to press the product at its output end, and the product is pressed down into the clearance groove 6 together with the rubber and the product support block 4. During the pressing process, the two ends of the rubber will be restricted by the clearance groove 6 and will roll up, thereby sticking to the lower end and both sides of the product. After the pressing is in place, the lifting cylinder 3 is driven, and the output end of the lifting cylinder 3 drives the two blocks to move. The wedge block 5 moves relative to each other and is inserted into the give way groove 6 and contacts with the rubber, forcing the two ends of the rubber to be pressed and attached to the surface of the product. At the same time, the pressing cylinder 2 rises, and the product support block 4 is pressed by the wedge block 5 and will not be pushed up. In addition, the wedge block 5 continues to adhere the rubber to the product under the continuous drive of the lifting cylinder 3 and finally makes the two ends of the rubber adhere to each other, so as to be firmly adhered to the product. After the rubber is bonded, the lifting cylinder 3 is reset, and the two wedge blocks 5 are reset and no longer restrict the product and the product support block 4. The product support block 4 can be reset to take out the product.As can be seen from the above, the overall structure of the present invention is compact, and only the material discharging and picking-up actions need to be performed, which is simple to operate. The automatic rubber covering work is realized by cylinder drive, which can reduce the labor intensity of workers, and the rubber covering work can be completed faster, which can improve work efficiency. The cylinder drives the wedge block 5 to synchronously act to press the rubber, which has good consistency and good product quality stability.

[0023] In this embodiment, the workbench 1 includes a mounting seat 7, a fixing block 8, a positioning plate 9 and a product seat 10 which are arranged in sequence from bottom to top. The clearance groove 6 is opened on the product seat 10. Two floating transverse grooves 11 are opened on the product seat 10. The two floating transverse grooves 11 are located on both sides of the clearance groove 6 and are connected to the clearance groove 6. The wedge block 5 is floatingly arranged in the floating transverse groove 11 through a reset spring 12. The workbench 1 includes a mounting seat 7, a fixed block 8, a positioning plate 9 and a product seat 10. The fixed block 8 is arranged on the mounting seat 7, the positioning plate 9 is arranged on the fixed block 8, the product seat 10 is arranged on the positioning plate 9, the give way groove 6 is located on the product seat 10, and the two floating transverse grooves 11 are opened on both sides of the product seat 10. The two floating transverse grooves 11 are perpendicular to the give way groove 6 and connected to the floating transverse groove 11. The two wedge blocks 5 are respectively arranged in the two floating transverse grooves 11, so the two wedge blocks 5 can penetrate into the give way groove 6. A blocking protrusion is arranged at the lower part of one end of the wedge block 5 away from the give way groove 6, and a locking protrusion is arranged on the lower groove surface of the floating transverse groove 11 to cooperate with the blocking protrusion. The two ends of the reset spring 12 respectively cooperate with the blocking protrusion and the locking protrusion, thereby allowing the wedge block 5 to move left and right.

[0024] In this embodiment, the lifting cylinder 3 is located below the mounting seat 7 and the output end passes through the mounting seat 7 and the fixed block 8 and is provided with a connecting plate 13. Lifting blocks 14 are provided at both ends of the connecting plate 13. Lifting grooves 15 are provided at both ends of the positioning plate 9. The lifting blocks 14 pass through the lifting grooves 15 and cooperate with the inclined surfaces of the wedge blocks 5. The lifting cylinder 3 is arranged below the mounting seat 7, and the output end of the lifting cylinder 3 passes through the mounting seat 7 and the fixing block 8. A connecting plate 13 is arranged on the output end of the lifting cylinder 3, and two lifting blocks 14 are arranged on the connecting plate 13. Two lifting grooves 15 adapted to the two lifting blocks 14 are opened on the positioning plate 9, and the lifting grooves 15 are used to make way for the lifting blocks 14 so that the lifting blocks 14 can smoothly contact with the wedge block 5; the upper end of the lifting block 14 is an inclined surface, and the rear end of the wedge block 5 is also an inclined surface. Therefore, when the lifting block 14 is pushed upward to contact with the wedge block 5, the wedge block 5 will move along the floating transverse groove 11 toward the direction of the making way groove 6, thereby realizing the rubber covering action.

[0025] In this embodiment, a product support bar 16 is floatingly provided at the front end of the fixed block 8, and the upper end of the product support bar 16 passes through the positioning plate 9 and the product seat 10 and cooperates with the give way groove 6. A downward pressing groove 17 with an inclined bottom groove surface is opened in the middle of the product support bar 16, and a transverse cylinder 18 is provided at the rear end of the mounting seat 7. A downward pressing round rod 19 is provided at the output end of the transverse cylinder 18, and the downward pressing round rod 19 passes through the positioning plate 9 and cooperates with the downward pressing groove 17. The product support bar 16 is arranged on the workbench 1 in a floating manner, and is located at the front end of the fixed block 8. The product support bar 16 passes through the positioning plate 9 and the product seat 10 and cooperates with the clearance groove 6. The product support bar 16 is used to support the non-rubber-wrapped part of the product, so as to prevent the product from falling when the product is placed; a downward pressure groove 17 is opened in the middle of the product support bar 16, and the lower groove surface of the downward pressure groove 17 is an inclined surface, and the inclined surface is inclined inwardly. The transverse cylinder 18 is arranged at the rear end of the mounting seat 7 The pressing round rod 19 is arranged at the output end of the transverse cylinder 18, and the pressing round rod 19 is driven by the transverse cylinder 18 to pass through the positioning plate 9 and cooperate with the pressing groove 17; when the pressing round rod 19 is driven by the transverse cylinder 18, its front end first abuts against the bottom of the pressing groove 17, and when the pressing round rod 19 continues to move forward, the product support bar 16 will be forced to move downward, so when the pressing round rod is completely inserted into the pressing groove 17, the product support bar 16 will drop to the lowest position. As can be seen from the above, during the rubber encapsulation work, after the product is pressed down by the pressing cylinder 2, the product and the product support strip 16 are simultaneously covered by the pressing rubber on both sides of the product, and then the lifting cylinder 3 is driven so that the product is pressed by the two wedge blocks 5 to achieve complete covering of the rubber. At the same time, the pressing cylinder 2 is raised, and the product support strip 16 is no longer subjected to the downward pressure, so an upward force is generated, but at this time the rubber-encapsulated part of the product is limited by the two wedge blocks 5, so the product is simultaneously affected by two limits, thereby maintaining a fixed state. When the product is to be taken out, the transverse cylinder 18 is driven so that the pressing round rod 19 presses the product support strip 16 down, and then the lifting cylinder 3 is reset to take out the product.

[0026] In this embodiment, the lower end of the product seat 10 is provided with a step groove 20 connected to the give way groove 6, the upper end of the product support block 4 passes through the step groove 20 and is located in the give way groove 6, and the lower end of the product support block 4 is provided with a limiting step 21 adapted to the step groove 20, and a telescopic spring is provided between the limiting step 21 and the step groove 20, and two guide blocks 22 are provided at the lower end of the limiting step 21, and the two guide blocks 22 pass through the positioning plate 9 and cooperate with the connecting plate 13, and a floating spring 23 is provided between the connecting plate 13 and the guide block 22. The lower end of the product support block 4 is provided with a limited step 21, which includes a vertical section and a step section, and the lower end of the limited step 21 is also provided with two guide blocks 22; the lower end of the product seat 10 is provided with a step groove 20, and the step groove 20 is connected with the clearance groove 6. When the product support block 4 is sleeved in the clearance groove 6, the limited step 21 is in the step groove 20, and a plurality of the telescopic springs are provided between the limited step 21 and the step groove 20, so that the product support block 4 and the product seat 10; the guide block 22 cooperates with the connecting plate 13 after passing through the positioning plate 9, and a plurality of floating springs 23 are arranged between the guide block 22 and the connecting plate 13, so that there is a floating force between the product support block 4 and the connecting plate 13; it can be seen from the above that the product support block 4 has a good floating effect, so when the downward pressure cylinder 2 drives downward pressure, the contact between the product support block 4 is non-hard contact, thereby avoiding impact damage, avoiding component wear, and extending service life.

[0027] In this embodiment, a support frame 24 is provided on the mounting seat 7, and the pressing cylinder 2 is provided on the support frame 24. The output end of the pressing cylinder 2 passes through the support frame 24 and is provided with a pressing block 25. The lower end of the pressing block 25 is provided with a product pressing strip 26 that matches the product support block 4, and an arc groove is provided at the lower end of the product pressing strip 26. The pressing cylinder 2 is provided on the mounting seat 7 through the support frame 24, and the pressing block 25 is provided at the output end of the pressing cylinder 2, so as to be driven by the pressing cylinder 2. The lower end of the pressing block 25 is provided with a product pressing strip 26, and the product pressing strip 26 cooperates with the product support block 4 to press the product downward. The lower end of the product pressing strip 26 is provided with the arc groove to facilitate the adaptation with the iron core product, so as to better press the product downward.

[0028] In this embodiment, a supporting circular groove is provided at the upper end of the product support bar 16, a through groove 27 adapted to the product support bar 16 is provided on the positioning plate 9, a locking through hole 28 connected to the through groove 27 is provided on the front end face of the positioning plate 9, and a locking column is provided at the front end of the pressing round rod 19, and the locking column is adapted to the locking through hole 28. The supporting circular groove provided on the product support bar 16 can make the product fit better, thereby ensuring the adhesion of the rubber; the through groove 27 is provided on the positioning plate 9 for the passage of the product support bar 16 to achieve giving way; the locking through hole 28 is provided at the front end of the positioning plate 9, and the locking through hole 28 is vertically connected to the through groove 27, and the locking column is provided at the front end of the pressing round rod 19 to cooperate with the locking through hole 28. When in use, the transverse cylinder 18 can drive the pressing round rod 19 to directly pass through the through groove 27, so that the locking column penetrates into the locking through hole 28 to keep it fixed. Therefore, even if the transverse cylinder 18 no longer provides power, the pressing round rod 19 can still limit the floating of the product support bar 16 to achieve long-term braking.

[0029] In this embodiment, the fixing block 8 is provided with a square groove 29 adapted to the connecting plate 13, a vertical spring 30 is provided between the connecting plate 13 and the positioning plate 9, the fixing block 8 is provided with a plurality of positioning pins 31 matched with the positioning plate 9, and the positioning plate 9 is provided with a plurality of guide pins 32 matched with the product seat 10. The square groove 29 provided on the fixing block 8 is used to make way for the connecting plate 13 so that the connecting plate 13 can move up and down smoothly, and a plurality of vertical springs 30 are provided between the connecting plate 13 and the positioning plate 9 to obtain a buffering effect and avoid hard impact; a plurality of positioning pins 31 are provided on the fixing block 8 to play a guiding role, so that the positioning plate 9 is easier to align during installation, and a plurality of positioning pins 31 are provided on the positioning plate 9 to play a guiding role, so that the product seat 10 is easier to position during installation, thereby improving installation efficiency.

[0030] In this embodiment, both ends of the positioning plate 9 are provided with blocking seats 33, and the two blocking seats 33 are located on both sides of the product seat 10 and cooperate with the wedge block 5. The two blocking seats 33 are located on both sides of the product seat 10, respectively, and can block the outer ends of the two wedge blocks 5, thereby preventing the wedge blocks 5 from falling from the floating transverse groove 11, so as to facilitate the rubber covering work.

[0031] In this embodiment, two limiting pieces 34 are arranged at the upper end of the product seat 10, and the two limiting pieces 34 are symmetrically arranged on both sides of the clearance groove 6, and the inner sides of the two limiting pieces 34 are provided with rubber limiting grooves 35. By arranging two limiting pieces 34 on the product seat 10, it is used to play a limiting and guiding role for the rubber, and the two limiting pieces 34 are symmetrically distributed on both sides of the clearance groove 6. When the rubber is placed between the two limiting pieces 34, it can be ensured to be directly above the clearance groove 6.

[0032] The working process of the present invention is as follows: a worker or a manipulator places the rubber adhesive surface upward on the two limit plates 34 of the product seat 10, and then places the rubber-wrapped section of the product on the rubber, and the non-rubber-wrapped section on the product support strip 16, and then the downward pressing cylinder 2 is driven, and the product pressing strip 26 fits the upper end of the product to press the product connected rubber down into the clearance groove 6, and the product support block 4 and the product support strip 16 are also forced to move downward synchronously, and the rubber wrapping of the lower end and both sides of the product is completed; then the lifting cylinder 3 is driven, and the connecting plate 13 drives the two lifting blocks 14 to move upward, and the two lifting blocks 14 prompt the two wedge blocks 5 to move horizontally toward the clearance groove 6 so that The rubber is squeezed, and the downward pressure cylinder 2 is reset at this time. The product lower pressure bar 26 contacts the limit of the product, and the product has an upward buoyancy. Therefore, the two wedge blocks 5 can make the rubber closer to the product when moving relative to each other. When the lifting cylinder 3 is driven into place, the two wedge blocks 5 completely cover the product with the rubber and the two ends of the rubber are bonded to each other, and the rubber wrapping action is completed; then the horizontal cylinder 18 is driven, and the downward pressure round rod 19 presses down the product support bar 16, thereby releasing the restriction on the product, and then the lifting cylinder 3 is reset, and the worker or robot takes out the product with rubber wrapping, and the horizontal cylinder 18 is reset immediately, and the work is completed at one time.

[0033] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. An automatic rubber covering mechanism, characterized in that: It comprises a workbench (1), a pressing cylinder (2), a lifting cylinder (3), a product support block (4) and two wedge blocks (5); the product support block (4) is floatingly arranged in a clearance groove (6) provided on the workbench (1); the two wedge blocks (5) are relatively floatingly arranged on both sides of the clearance groove (6) and cooperate with the product support block (4); the pressing cylinder (2) is arranged on the workbench (1); the pressing cylinder (2) is located above the clearance groove (6) and the output end cooperates with the product support block (4); the lifting cylinder (3) is located below the workbench (1) and the output end penetrates into the workbench (1) and cooperates with the two wedge blocks (5); The workbench (1) comprises a mounting seat (7), a fixing block (8), a positioning plate (9) and a product seat (10) which are arranged in sequence from bottom to top; the clearance groove (6) is provided on the product seat (10); two floating transverse grooves (11) are provided on the product seat (10); the two floating transverse grooves (11) are located on both sides of the clearance groove (6) and are connected to the clearance groove (6); the wedge block (5) is floatingly arranged in the floating transverse groove (11) by means of a return spring (12); A product support bar (16) is provided in a floating manner at the front end of the fixed block (8); the upper end of the product support bar (16) passes through the positioning plate (9) and the product seat (10) and cooperates with the clearance groove (6); a downward pressing groove (17) with an inclined bottom groove surface is provided in the middle of the product support bar (16); a transverse cylinder (18) is provided at the rear end of the mounting seat (7); a downward pressing round rod (19) is provided at the output end of the transverse cylinder (18); the downward pressing round rod (19) passes through the positioning plate (9) and cooperates with the downward pressing groove (17); The lower end of the product seat (10) is provided with a stepped groove (20) connected to the clearance groove (6); the upper end of the product support block (4) passes through the stepped groove (20) and is located in the clearance groove (6); the lower end of the product support block (4) is provided with a limiting step (21) adapted to the step groove (20); a telescopic spring is provided between the limiting step (21) and the step groove (20); the lower end of the limiting step (21) is provided with two guide blocks (22); the two guide blocks (22) pass through the positioning plate (9) and cooperate with the connecting plate (13); a floating spring (23) is provided between the connecting plate (13) and the guide block (22).

2. The automatic rubber covering mechanism according to claim 1, characterized in that: The lifting cylinder (3) is located below the mounting seat (7) and the output end passes through the mounting seat (7) and the fixing block (8) and is provided with a connecting plate (13). Both ends of the connecting plate (13) are provided with lifting blocks (14). Both ends of the positioning plate (9) are provided with lifting grooves (15). The lifting blocks (14) pass through the lifting grooves (15) and cooperate with the inclined surfaces of the wedge blocks (5).

3. The automatic rubber covering mechanism according to claim 1, characterized in that: A support frame (24) is arranged on the mounting seat (7), the pressing cylinder (2) is arranged on the support frame (24), the output end of the pressing cylinder (2) passes through the support frame (24) and is provided with a pressing block (25), the lower end of the pressing block (25) is provided with a product pressing strip (26) which cooperates with the product support block (4), and the lower end of the product pressing strip (26) is provided with an arc groove.

4. The automatic rubber covering mechanism according to claim 1, characterized in that: A supporting circular groove is provided at the upper end of the product support bar (16); a through groove (27) matched with the product support bar (16) is provided on the positioning plate (9); a locking through hole (28) connected with the through groove (27) is provided on the front end surface of the positioning plate (9); a locking column is provided at the front end of the pressing round rod (19); the locking column is matched with the locking through hole (28).

5. The automatic rubber covering mechanism according to claim 2, characterized in that: The fixing block (8) is provided with a square through groove (29) adapted to the connecting plate (13), a vertical spring (30) is provided between the connecting plate (13) and the positioning plate (9), the fixing block (8) is provided with a plurality of positioning pins (31) matched with the positioning plate (9), and the positioning plate (9) is provided with a plurality of guide pins (32) matched with the product seat (10).

6. The automatic rubber covering mechanism according to claim 1, characterized in that: Blocking seats (33) are provided at both ends of the positioning plate (9), and the two blocking seats (33) are located on both sides of the product seat (10) and cooperate with the wedge block (5).

7. The automatic rubber covering mechanism according to claim 1, characterized in that: Two limiting plates (34) are arranged at the upper end of the product seat (10), and the two limiting plates (34) are symmetrically arranged on both sides of the clearance groove (6). Rubber limiting grooves (35) are provided on the inner sides of the two limiting plates (34).

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