CN114161549A

CN114161549A - Quick shaping mechanism is used in porcelain insulator production

Info

Publication number: CN114161549A
Application number: CN202111502325.6A
Authority: CN
Inventors: 李鹏
Original assignee: Pingxiang Shenzhou Electric Porcelain Factory
Current assignee: Pingxiang Shenzhou Electric Porcelain Factory
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-03-11
Anticipated expiration: 2041-12-09
Also published as: CN114161549B

Abstract

The invention relates to the technical field of porcelain insulator production, and discloses a quick shaping mechanism for porcelain insulator production, which solves the problem that the final shaping quality of a porcelain insulator is influenced because a mud blank is not preliminarily shaped at present and comprises a base, wherein a lower die is fixedly arranged on the top of the base close to the left side, and a formed product extrusion mechanism is arranged on the left side of the lower die; according to the invention, through the matching between the placing groove and the fixture blocks, the fixture blocks can be positioned in the placing groove, meanwhile, the fixing blocks on the two sides can be attached to the lower die, the fixing blocks can be fixed with the lower die through bolts, then, the partition plate can block the opening, and through the matching between the cylinder and the upper die as well as between the sliding plate and the sliding groove, the upper die can move downwards to carry out die assembly, so that the mud blank positioned in the lower die can be preliminarily shaped, and the final shaping quality of the porcelain insulator is prevented from being influenced.

Description

Quick shaping mechanism is used in porcelain insulator production

Technical Field

The invention belongs to the technical field of porcelain insulator production, and particularly relates to a rapid shaping mechanism for porcelain insulator production.

Background

The insulator is a device which is installed between conductors with different electric potentials or between the conductor and a grounding component and can bear the action of voltage and mechanical stress, the insulator is various in types and different in shape, although the structures and the appearances of insulators of different types are greatly different, the insulators are composed of two parts, namely an insulating part and a connecting hardware fitting, along with the continuous improvement of the requirements of a power transmission and transformation system in China, the insulator is used as a switch of important equipment for power transmission and distribution, the quantity of insulator requirements on important high-voltage electric appliances such as a transformer and a mutual inductor is also continuously increased, insulators commonly used in the process of a vertical line circuit are mostly porcelain insulators, and a mud blank needs to be positioned and then fired into the porcelain insulator in the production process of the porcelain insulator.

When the porcelain insulator is produced, the existing porcelain insulator production qualitative device generally directly puts a mud blank into a model for firing and shaping, does not preliminarily shape the mud blank, further influences the final shaping quality of the porcelain insulator, and possibly influences the insulating property of the porcelain insulator.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a rapid shaping mechanism for producing a porcelain insulator, which effectively solves the problem that the final shaping quality of the porcelain insulator is influenced because the mud blank is not preliminarily shaped at present.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a porcelain insulator production is with quick forming mechanism, the on-line screen storage device comprises a base, the top of base is close to left side fixed mounting and has the bed die, the finished product extruding means is installed in the left side of bed die, the top of base is close to left side fixed mounting and has the U template, the bottom fixed mounting of U template has the cylinder, the bottom fixed mounting of cylinder has last mould, it is located the bed die to go up the mould, the top fixed mounting of base has back plate and front bezel, install the conveyer belt between back plate and the front bezel, centre gripping moving mechanism is installed at the top of conveyer belt, the top fixed mounting of base has the heating cabinet that is located the conveyer belt right side, logical groove has been seted up in the left side of heating cabinet.

Preferably, the chutes are formed in the two sides of the U-shaped plate, the sliding plates are movably connected inside the two chutes, and one sides, close to each other, of the two sliding plates are fixedly connected with the upper die.

Preferably, a driven roller and a driving roller are movably connected between the rear plate and the front plate, the driving roller is located on the right side of the driven roller, the driven roller and the driving roller are both movably connected with the conveying belt, a motor is fixedly connected to one end of the driving roller, and the bottom of the motor is fixedly connected with the top of the base.

Preferably, the opening has been seted up on the right side of bed die, and the spacing groove has been seted up to open-ended inner chamber bottom, and the inside activity joint of spacing groove has the limiting plate, and the top fixedly connected with baffle of limiting plate, baffle and opening looks adaptation, the standing groove has all been seted up to the top both sides of bed die, and the inside activity joint of standing groove has the fixture block, fixture block and baffle fixed connection, and the equal fixed mounting in bottom of two fixture blocks has the fixed block, and two fixed blocks all laminate with the bed die, and the bolt is all installed to one side that two fixed blocks kept away from each other.

Preferably, the shaping article extruding means including be located the base left side and with base fixed connection's L template, the right side fixedly connected with circle piece of L template, the right side fixedly connected with movable post of circle piece, the extrusion post has been cup jointed in the outside activity of activity post, the third spring that fixedly connected with and activity post activity cup jointed between extrusion post and the circle piece, the right side fixedly connected with extrusion dish of extrusion post, the circular slot has been seted up in the left side of bed die, circular slot and extrusion dish looks adaptation.

Preferably, the fixed cover that has cup jointed in left side of extrusion post, the external screw thread has been seted up in the outside of extrusion post, the outside of extrusion post has the thread bush through external screw thread regulation, the outside swing joint of extrusion post is located the left movable sleeve of thread bush, fixedly connected with second spring between movable sleeve and the fixed cover, the quantity of second spring is four, and the both ends of four second springs are located the four corners position of fixed cover and movable sleeve respectively, the both sides of movable sleeve are all rotated and are connected with the dwang, the right-hand member of two dwangs is all rotated and is connected with the rotor plate, two rotor plates all rotate with the extrusion dish and be connected, the outer groove with the circular slot intercommunication is seted up in the left side of bed die, outer groove and rotor plate activity joint.

Preferably, the equal fixedly connected with spliced pole in both sides of fixed cover, two spliced poles all with L template swing joint, the left side fixedly connected with connecting plate, the left side fixedly connected with handle of connecting plate of L template are run through to the left end of two spliced poles.

Preferably, the right side of connecting plate rotates and is connected with the kelly, and the kelly is located the left side of L template, and the left side of L template is seted up with the locating hole, and the right-hand member of kelly is located the inside of locating hole.

Preferably, centre gripping moving mechanism is including seting up the guide way that is close to one side each other with back plate and front bezel respectively, the inside fixed mounting of guide way has the horizontal pole, the slider has been cup jointed in the outside activity of horizontal pole, one side of slider is rotated and is connected with a section of thick bamboo that rotates, the connecting rod has been cup jointed in the inside activity of a section of thick bamboo that rotates, the top fixedly connected with movable block of connecting rod, the first spring that fixedly connected with and connecting rod activity cup jointed between movable block and the section of thick bamboo that rotates, the top fixed mounting of movable block has splint, one side fixedly connected with of slider is located the bottom plate of a section of thick bamboo below that rotates.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the ceramic insulator shaping device, the limiting plate can enter the limiting groove through the matching between the limiting groove, the limiting plate and the partition plate, the clamping block can be located inside the placing groove through the matching between the placing groove and the clamping block, the fixing blocks on two sides can be attached to the lower die, the fixing blocks can be fixed with the lower die through bolts, the opening can be blocked by the partition plate, the upper die can move downwards to be matched through the matching between the cylinder and the upper die and between the sliding plate and the sliding groove, and therefore mud blanks located inside the lower die can be preliminarily shaped, and the final shaping quality of the ceramic insulator is prevented from being influenced;

(2) the invention can make the screw sleeve move leftwards when the screw sleeve is rotated clockwise, and make the movable sleeve move leftwards, and then make the two rotating plates rotate, so that the rotating plates can be separated from the outer groove and perpendicular to the left side of the lower die, and through the cooperation between the handle, the connecting plate and the clamping rod, when the handle is pulled leftwards, the clamping rod can be moved leftwards and make the right end of the clamping rod separated from the positioning hole, at this time the clamping rod can be rotated to be parallel to the left side of the L-shaped plate, and when the control of the handle is released, through the cooperation between the connecting plate, the connecting column and the fixed sleeve, the originally compressed third spring is reset and makes the extrusion column move rightwards, and then the extrusion disc moves rightwards, so that the mud blank which is primarily shaped in the lower die can be pushed out, thereby facilitating the subsequent conveying of the mud blank.

(3) The movable block can move and rotate through the matching of the sliding block, the rotating cylinder, the connecting rod and the movable block, when the mud blank is positioned at the top of the conveying belt, the movable block can be rotated and moved towards the rotating cylinder, the first spring is compressed at the moment, when the rotating cylinder rotates to the position at the top of the bottom plate, the mud blank is positioned between the two clamping plates at the moment, the control on the movable block can be removed, the first spring resets and moves the movable block, the two clamping plates can be moved and clamp and limit the mud blank, and therefore the shape of the mud blank is convenient to damage in the conveying process.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the lower mold of the present invention;

FIG. 3 is an exploded view of the lower mold of the present invention;

FIG. 4 is a schematic representation of the conveyor belt of the present invention;

FIG. 5 is a schematic view of the extrusion mechanism for molded articles according to the present invention;

FIG. 6 is a schematic view of the extrusion column of the present invention;

FIG. 7 is an exploded view of the L-shaped plate and the connecting plate of the present invention;

FIG. 8 is a schematic structural diagram of a clamping and moving mechanism according to the present invention.

In the figure: 1. a base; 2. a front plate; 3. a conveyor belt; 4. a clamping moving mechanism; 401. a guide groove; 402. a slider; 403. a cross bar; 404. a base plate; 405. a splint; 406. a movable block; 407. a first spring; 408. a rotating cylinder; 409. a connecting rod; 5. a lower die; 6. a molded product extrusion mechanism; 601. an L-shaped plate; 602. a clamping rod; 603. a connecting plate; 604. a handle; 605. connecting columns; 606. extruding the column; 607. a round block; 608. a movable post; 609. fixing a sleeve; 6010. an external thread; 6011. rotating the rod; 6012. an extrusion disc; 6013. a rotating plate; 6014. a threaded sleeve; 6015. a movable sleeve; 6016. a second spring; 6017. a third spring; 6018. positioning holes; 7. an upper die; 8. a slide plate; 9. a chute; 10. a cylinder; 11. a U-shaped plate; 12. a back plate; 13. a through groove; 14. a heating box; 15. a clamping block; 16. a partition plate; 17. a fixed block; 18. a bolt; 19. an outer tank; 20. an opening; 21. a limiting groove; 22. a limiting plate; 23. a placement groove; 24. a circular groove; 25. a driven roller; 26. a drive roll; 27. an electric motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 8, the invention includes a base 1, a lower mold 5 is fixedly installed on the top of the base 1 near the left side, a molded product extrusion mechanism 6 is installed on the left side of the lower mold 5, a U-shaped plate 11 is fixedly installed on the top of the base 1 near the left side, an air cylinder 10 is fixedly installed on the bottom of the U-shaped plate 11, an upper mold 7 is fixedly installed on the bottom of the air cylinder 10, the upper mold 7 is positioned right above the lower mold 5, a rear plate 12 and a front plate 2 are fixedly installed on the top of the base 1, a conveyor belt 3 is installed between the rear plate 12 and the front plate 2, a clamping and moving mechanism 4 is installed on the top of the conveyor belt 3, a heating box 14 positioned on the right side of the conveyor belt 3 is fixedly installed on the top of the base 1, and a through groove 13 is formed in the left side of the heating box 14.

In the second embodiment, on the basis of the first embodiment, sliding grooves 9 are respectively formed in two sides of a U-shaped plate 11, sliding plates 8 are respectively movably connected inside the two sliding grooves 9, one side, close to each other, of each sliding plate 8 is fixedly connected with an upper die 7, a driven roller 25 and a driving roller 26 are movably connected between a rear plate 12 and a front plate 2, the driving roller 26 is positioned on the right side of the driven roller 25, the driven roller 25 and the driving roller 26 are both movably connected with a conveyor belt 3, one end of the driving roller 26 is fixedly connected with a motor 27, the bottom of the motor 27 is fixedly connected with the top of a base 1, an opening 20 is formed in the right side of a lower die 5, a limiting groove 21 is formed in the bottom of an inner cavity of the opening 20, a limiting plate 22 is movably clamped inside the limiting groove 21, a partition plate 16 is fixedly connected to the top of the limiting plate 22, the partition plate 16 is matched with the opening 20, placing grooves 23 are respectively formed in two sides of the top of the lower die 5, a clamping block 15 is movably clamped inside the placing grooves 23, the fixture blocks 15 are fixedly connected with the partition plate 16, the bottoms of the two fixture blocks 15 are fixedly provided with the fixing blocks 17, the two fixing blocks 17 are attached to the lower die 5, and the sides, far away from each other, of the two fixing blocks 17 are provided with bolts 18;

firstly, the partition plate 16 is placed at the opening 20, the limiting plate 22 enters the limiting groove 21, the fixture blocks 15 are located inside the placing groove 23, the opening 20 is blocked by the partition plate 16, then the bolts 18 on the two sides are screwed, the fixing blocks 17 and the lower die 5 are fixed, then the mud blank is placed inside the lower die 5, then the air cylinder 10 is started, the upper die 7 is driven to move downwards, and therefore the mud blank is preliminarily shaped after the upper die 7 and the lower die 5 are matched.

Third embodiment, on the basis of the first embodiment, the molded product extrusion mechanism 6 includes an L-shaped plate 601 located on the left side of the base 1 and fixedly connected to the base 1, a round block 607 is fixedly connected to the right side of the L-shaped plate 601, a movable column 608 is fixedly connected to the right side of the round block 607, an extrusion column 606 is movably sleeved on the outer side of the movable column 608, a third spring 6017 movably sleeved on the movable column 608 is fixedly connected between the extrusion column 606 and the round block 607, an extrusion disc 6012 is fixedly connected to the right side of the extrusion column 606, a round slot 24 is formed on the left side of the lower mold 5, the round slot 24 is adapted to the extrusion disc 6012, a fixed sleeve 609 is fixedly sleeved on the left side of the extrusion column 606, an external thread 6010 is formed on the outer side of the extrusion column 606, a threaded sleeve 6014 is threadedly adjusted on the external thread 6010, a movable sleeve 6015 located on the left side of the threaded sleeve 6014 is movably connected to the outer side of the extrusion column 606, a second spring 6016 is fixedly connected between the movable sleeve 6015 and the fixed sleeve 609, the number of the second springs 6016 is four, two ends of each of the four second springs 6016 are located at four corners of the fixed sleeve 609 and the movable sleeve 6015 respectively, two sides of the movable sleeve 6015 are rotatably connected with the rotating rods 6011, right ends of the two rotating rods 6011 are rotatably connected with the rotating plates 6013, the two rotating plates 6013 are rotatably connected with the extrusion disc 6012, the left side of the lower die 5 is provided with an outer groove 19 communicated with the circular groove 24, the outer groove 19 is movably clamped with the rotating plates 6013, two sides of the fixed sleeve 609 are fixedly connected with the connecting columns 605, the two connecting columns 605 are movably connected with the L-shaped plate 601, left ends of the two connecting columns 605 penetrate through the left side of the L-shaped plate 601 and are fixedly connected with the connecting plate 603, the left side of the connecting plate 603 is fixedly connected with a handle 604, the right side of the connecting plate 603 is rotatably connected with a clamping rod 602, the clamping rod 602 is located at the left side of the L-shaped plate 601, the left side of the L-shaped plate 601 is provided with a positioning hole 6018, and the right end of the clamping rod 602 is located inside the positioning hole 6018;

after the mud blank is primarily shaped, the air cylinder 10 is started to drive the upper die 7 to move upwards until the upper die is positioned above the lower die 5, then the bolts 18 on the two sides are loosened, the fixing block 17 and the lower die 5 are released, then the partition plate 16 moves upwards until the partition plate is separated from the opening 20, then the threaded sleeve 6014 is rotated clockwise, then the threaded sleeve 6014 moves leftwards, simultaneously the movable sleeve 6015 is driven to move leftwards, simultaneously the threaded sleeves 6014 on the two sides are driven to move, simultaneously the two rotating plates 6013 are driven to rotate until the two rotating plates are perpendicular to the extrusion disc 6012, then the handle 604 is pulled leftwards, at the moment, the clamping rod 602 is driven to move leftwards until the right end of the clamping rod is separated from the positioning hole 6018, then the clamping rod 602 is driven until the clamping rod is parallel to the left side of the L-shaped plate 601, at the moment, the control on the handle 604 is released, at the moment, the originally compressed third spring 6017 resets and drives the extrusion column 606 to drive the extrusion disc 6012 to move rightwards, thereby pressing the dough inside the lower mold 5 so that the dough can move from the opening 20 to the inside of the conveyor 3, thereby enabling the conveyance of the dough to be completed.

Fourth embodiment, on the basis of the first embodiment, the clamping and moving mechanism 4 includes a guide groove 401 respectively formed on one side close to the rear plate 12 and the front plate 2, a cross rod 403 is fixedly installed inside the guide groove 401, a slider 402 is movably sleeved on the outer side of the cross rod 403, one side of the slider 402 is rotatably connected with a rotating cylinder 408, a connecting rod 409 is movably sleeved inside the rotating cylinder 408, a movable block 406 is fixedly connected to the top end of the connecting rod 409, a first spring 407 movably sleeved with the connecting rod 409 is fixedly connected between the movable block 406 and the rotating cylinder 408, a clamp plate 405 is fixedly installed on the top of the movable block 406, and a bottom plate 404 located below the rotating cylinder 408 is fixedly connected to one side of the slider 402;

when the mud blank after the preliminary sizing is moved to the top of the conveyor belt 3 from the opening 20, then the clamping plates 405 on both sides are rotated, at this time, the rotating cylinder 408 is driven to rotate, then the movable block 406 is moved towards the rotating cylinder 408, at this time, the connecting rod 409 is moved, and the first spring 407 is compressed, and when the two rotating cylinders 408 are rotated to the top of the bottom plate 404, at this time, the mud blank is positioned between the two clamping plates 405, then the control on the two movable blocks 406 is released, at this time, the first spring 407 is reset and drives the movable block 406 to move, and then the two clamping plates 405 are driven to move and carry out spacing clamping on the mud blank, so as to prevent the shape from being damaged when the mud blank is moved, then the motor 27 is started to drive the rotation of the driving roller 26, and the conveyor belt 3 is driven to move through the driven roller 25, and through the matching between the sliding block 402 and the cross bar 403, so that the mud blank can be moved to the inside of the heating box 14, thereby realizing the final shaping of the mud blank.

Claims

1. The utility model provides a porcelain insulator production is with quick forming mechanism, includes base (1), its characterized in that: the top of base (1) is close to left side fixed mounting and has bed die (5), finished product extruding means (6) are installed in the left side of bed die (5), the top of base (1) is close to left side fixed mounting and has U template (11), the bottom fixed mounting of U template (11) has cylinder (10), the bottom fixed mounting of cylinder (10) has last mould (7), it is located bed die (5) directly over to go up mould (7), the top fixed mounting of base (1) has back plate (12) and front bezel (2), install conveyer belt (3) between back plate (12) and front bezel (2), centre gripping moving mechanism (4) are installed at the top of conveyer belt (3), the top fixed mounting of base (1) has heating cabinet (14) that is located conveyer belt (3) right side, logical groove (13) have been seted up in the left side of heating cabinet (14).

2. The quick shaping mechanism for porcelain insulator production according to claim 1, characterized in that: spout (9) have all been seted up to the both sides of U template (11), and the equal swing joint in inside of two spout (9) has slide (8), and one side that two slide (8) are close to each other all with last mould (7) fixed connection.

3. The quick shaping mechanism for porcelain insulator production according to claim 1, characterized in that: swing joint has driven voller (25) and drive roll (26) between back plate (12) and front bezel (2), and drive roll (26) are located the right side of driven voller (25), and driven voller (25) and drive roll (26) all with conveyer belt (3) swing joint, the one end fixedly connected with motor (27) of drive roll (26), the bottom of motor (27) and the top fixed connection of base (1).

4. The quick shaping mechanism for porcelain insulator production according to claim 1, characterized in that: opening (20) have been seted up on the right side of bed die (5), spacing groove (21) have been seted up to the inner chamber bottom of opening (20), the inside activity joint of spacing groove (21) has limiting plate (22), top fixedly connected with baffle (16) of limiting plate (22), baffle (16) and opening (20) looks adaptation, standing groove (23) have all been seted up to the top both sides of bed die (5), the inside activity joint of standing groove (23) has fixture block (15), fixture block (15) and baffle (16) fixed connection, the equal fixed mounting in bottom of two fixture blocks (15) has fixed block (17), two fixed block (17) all laminate with bed die (5), bolt (18) are all installed to the one side of keeping away from each other of two fixed blocks (17).

5. The quick shaping mechanism for porcelain insulator production according to claim 1, characterized in that: shaping article extruding means (6) including be located base (1) left side and with base (1) fixed connection's L template (601), right side fixedly connected with circle piece (607) of L template (601), the right side fixedly connected with activity post (608) of circle piece (607), the outside activity of activity post (608) has cup jointed extrusion post (606), third spring (6017) that fixedly connected with cup jointed with activity post (608) activity between extrusion post (606) and circle piece (607), right side fixedly connected with crushing dish (6012) of extrusion post (606), circular slot (24) have been seted up in the left side of bed die (5), circular slot (24) and crushing dish (6012) looks adaptation.

6. The quick shaping mechanism for porcelain insulator production according to claim 5, characterized in that: the left side of the extrusion column (606) is fixedly sleeved with a fixed sleeve (609), the outer side of the extrusion column (606) is provided with an external thread (6010), the outer side of the extrusion column (606) is adjusted to be provided with a threaded sleeve (6014) through the external thread (6010) in a threaded manner, the outer side of the extrusion column (606) is movably connected with a movable sleeve (6015) positioned on the left side of the threaded sleeve (6014), a second spring (6016) is fixedly connected between the movable sleeve (6015) and the fixed sleeve (609), the number of the second springs (6016) is four, two ends of the four second springs (6016) are respectively positioned at four corners of the fixed sleeve (609) and the movable sleeve (6015), two sides of the movable sleeve (6015) are respectively and rotatably connected with rotating rods (6011), the right ends of the two rotating rods (6011) are respectively and rotatably connected with rotating plates (6013), the two rotating plates (6013) are respectively and rotatably connected with an extrusion disc (6012), the left side of a lower die (5) is provided with an outer groove (19) communicated with a circular groove (24), the outer groove (19) is movably clamped with the rotating plate (6013).

7. The quick shaping mechanism for porcelain insulator production according to claim 6, characterized in that: the equal fixedly connected with spliced pole (605) in both sides of fixed cover (609), two spliced poles (605) all with L template (601) swing joint, the left end of two spliced poles (605) runs through left side fixedly connected with connecting plate (603) of L template (601), left side fixedly connected with handle (604) of connecting plate (603).

8. The quick shaping mechanism for porcelain insulator production according to claim 7, characterized in that: the right side of connecting plate (603) rotates and is connected with kelly (602), and kelly (602) are located the left side of L template (601), and the left side of L template (601) is seted up and is located locating hole (6018), and the right-hand member of kelly (602) is located the inside of locating hole (6018).

9. The quick shaping mechanism for porcelain insulator production according to claim 1, characterized in that: the clamping moving mechanism (4) comprises guide grooves (401) which are respectively arranged on one side close to a rear plate (12) and a front plate (2), a cross rod (403) is fixedly arranged inside the guide grooves (401), a sliding block (402) is movably sleeved outside the cross rod (403), one side of the sliding block (402) is rotatably connected with a rotating cylinder (408), a connecting rod (409) is movably sleeved inside the rotating cylinder (408), a movable block (406) is fixedly connected to the top end of the connecting rod (409), a first spring (407) which is movably sleeved with the connecting rod (409) is fixedly connected between the movable block (406) and the rotating cylinder (408), a clamping plate (405) is fixedly arranged at the top of the movable block (406), and a bottom plate (404) which is fixedly connected to one side of the sliding block (402) and is located below the rotating cylinder (408).