阅读说明：本技术 一种萜烯树脂生产用搅拌罐 (Stirring tank for terpene resin production ) 是由 翁新武 邓茂生 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种萜烯树脂生产用搅拌罐,包括壳体a、壳体b、壳体c和壳体d,所述壳体a内设置有滤筒,且滤筒贯穿壳体a的左侧面并固定连接在固定板的右侧面,所述固定板通过两个螺栓与壳体a的左侧面可拆卸连接,且两个螺栓上下对称设置,滤筒的上表面螺纹连接有进料管,且进料管的顶端连通有进料斗；通过设置滤筒和搅拌板,搅拌板可以对原料进行第一次搅拌,原料在搅拌过程中会被甩出,并通过滤筒被过滤,使得原料中的杂质可以被剔除,且原料可以从壳体a内流入壳体b内,并通过壳体b流入至壳体c内,最后从壳体c内排出不需要在壳体a、壳体c和壳体b中停留过长时间,不仅提高了原料搅拌效果且提高了原料加工的速度。(The invention discloses a stirring tank for terpene resin production, which comprises a shell a, a shell b, a shell c and a shell d, wherein a filter cartridge is arranged in the shell a, penetrates through the left side surface of the shell a and is fixedly connected to the right side surface of a fixing plate, the fixing plate is detachably connected with the left side surface of the shell a through two bolts, the two bolts are arranged in an up-down symmetrical manner, the upper surface of the filter cartridge is in threaded connection with a feed pipe, and the top end of the feed pipe is communicated with a feed hopper; strain a section of thick bamboo and stirring board through the setting, the stirring board can carry out the stirring for the first time to the raw materials, the raw materials can be thrown away at the stirring in-process, and filtered through straining a section of thick bamboo, make impurity in the raw materials can be rejected, and the raw materials can flow into in the casing b from casing an, and flow into to casing c through casing b in, discharge need not stay the overlength time in casing an, casing c and casing b from casing c at last, not only improved raw materials stirring effect and improved the speed of raw materials processing.)

1. The utility model provides a terpene resin production is with agitator tank, includes casing a (1), casing b (2), casing c (3) and casing d (33), its characterized in that: a filter cylinder (6) is arranged in the shell a (1), the filter cylinder (6) penetrates through the left side face of the shell a (1) and is fixedly connected to the right side face of the fixing plate (10), the fixing plate (10) is detachably connected with the left side face of the shell a (1) through two bolts (9), the two bolts (9) are arranged in a vertically symmetrical mode, the upper surface of the filter cylinder (6) is in threaded connection with a feed pipe (7), the top end of the feed pipe (7) is communicated with a feed hopper, the top end of the feed pipe (7) upwards extends through the upper surface of the shell a (1), a silica gel sleeve (8) is sleeved on the outer surface of the feed pipe (7), the silica gel sleeve (8) is clamped on the upper surface of the shell a (1), the right side face of the shell a (1) is communicated with the left side face of the shell b (2), and a spiral blade (36) is arranged in, the right end of the spiral blade (36) is fixedly connected with an output shaft of the motor b (4), the output shaft of the motor b (4) penetrates through the right side face of the shell b (2), the lower surface of the motor b (4) is fixedly connected with the right side face of the shell b (2) through the mounting plate b, the motor b (4) is electrically connected with an external control switch, the lower surface of the shell b (2) is communicated with the upper surface of the shell c (3) through a connecting pipe (39), the upper surface of the shell c (3) is fixedly connected with the lower surface of the shell a (1), the right side face of the shell c (3) is provided with the motor c (22), the output shaft of the motor c (22) penetrates through the right side face of the shell c (3) and is fixedly connected with the right ends of the fixing rods b (16), the number of the fixing rods b (16) is two, and the two fixing rods b (16) are arranged in bilateral symmetry, and the opposite ends of the two fixed rods b (16) are fixedly connected with bevel gears a (18), the two bevel gears a (18) are engaged with the outer surfaces of the bevel gears b (19), the lower surfaces of the bevel gears b (19) are fixedly connected with rotating shafts, the outer surfaces of the rotating shafts are sleeved with bearings a, the bearings a are clamped on the lower surfaces of the inner walls of the shell c (3), the outer surfaces of the fixed rods b (16) are sleeved with bearings b, the bearings b are clamped on the left side surfaces of the inner walls of the shell c (3), the outer surfaces of the fixed rods b (16) are fixedly connected with stirring rods (17), connecting plates (24) are arranged in the shell c (3), the connecting plates (24) are circular in shape, the outer surfaces of the connecting plates (24) are fixedly connected with sponge brushes (20), the outer surfaces of the sponge brushes (20) are attached to the inner walls of the shell c (3), grooves (26) are formed in the lower, the left side surface of the shell c (3) is communicated with a discharge pipe (15).

2. The stirring tank for terpene resin production according to claim 1, wherein: the inner wall of the shell a (1) is fixedly connected with a limiting plate (5), and the limiting plate (5) is circular.

3. The stirring tank for terpene resin production according to claim 1, wherein: be provided with dead lever a (30) in casing a (1), and the outer fixed surface of dead lever a (30) is connected with stirring board (28), sealed bearing has been cup jointed to the surface of dead lever a (30), and sealed bearing joint is at the right flank of fixed plate (10), the left end of dead lever a (30) and the output shaft fixed connection of motor a (11), and the back of motor a (11) passes through the left flank fixed connection of mounting panel a with fixed plate (10), and motor a (11) and external control switch electric connection.

4. The stirring tank for terpene resin production according to claim 1, wherein: a plurality of metal wires (29) are arranged in the shell a (1), and the metal wires (29) are uniformly arranged in the filter cartridge (6) in a circular ring shape.

5. The stirring tank for terpene resin production according to claim 1, wherein: the outer surface of the filter cylinder (6) is sleeved with a rubber ring (27), and the rubber ring (27) is clamped on the left side surface of the inner wall of the shell a (1).

6. The stirring tank for terpene resin production according to claim 1, wherein: the through-hole has been seted up to the upper surface of casing b (2), and is provided with filter screen (35) in the through-hole, the last fixed surface of filter screen (35) is connected with mount pad (34), and the lower surface of mount pad (34) can be dismantled with the upper surface of casing b (2) and be connected.

7. The stirring tank for terpene resin production according to claim 1, wherein: the front and the back of the shell c (3) are fixedly connected with a shell d (33), an electric heating pipe (31) is arranged in the shell d (33), the electric heating pipe (31) is electrically connected with an external control switch, and a spongy cushion (32) is arranged in the shell d (33).

8. the stirring tank for terpene resin production according to claim 1, wherein: the all fixedly connected with permanent magnet (25) in both sides around connecting plate (24) right flank, the right flank fixedly connected with curb plate (21) of casing c (3) inner wall, and the left surface of curb plate (21) has seted up spacing groove (38), and is provided with a plurality of electro-magnet (37) in spacing groove (38), electro-magnet (37) and external control switch electric connection.

9. The stirring tank for terpene resin production according to claim 1, wherein: threaded hole (23) are seted up to the left surface of connecting plate (24), and threaded hole (23) female connection has slide bar (13), sliding sleeve (14) have been cup jointed to the surface of slide bar (13), and sliding sleeve (14) joint is at the left surface of casing c (3), the left end fixedly connected with of slide bar (13) is twisted the ring, the upper surface of casing c (3) is through fixed rope fixedly connected with piston (12).

Technical Field

The invention belongs to the technical field of terpene resins, and particularly relates to a stirring tank for terpene resin production.

background

The terpene resin is a thermoplastic block copolymer which has the advantages of light color, low odor, high hardness, high adhesive force, good oxidation resistance, good thermal stability, good compatibility and solubility and the like, and particularly has excellent compatibility, weather resistance and tackifying effect in hot sol of EVA SIS system, SBS system and the like. The product is widely applied to the aspects of adhesives, double-sided tapes, solvent-based glues, book binding plates, color packages, rubberized fabrics, olefin rubberized fabrics, kraft paper card rubberized fabrics, tape labels, woodworking adhesives, pressure-sensitive adhesives, thermosol, sealants, paints, printing inks and other polymer modifiers and the like.

Terpene resin generally need place the reation kettle in the course of working and through the heating stirring, however reation kettle can only process certain weight's terpene resin, under the condition of a large amount of terpene resin of needs processing, then need use a plurality of reation kettles, blowing and collection that need not stop in the course of working have increaseed workman's work load, and the machining efficiency of terpene resin raw materials is very low

Disclosure of Invention

The invention aims to provide a stirring tank for producing terpene resin, which solves the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a stirring tank for terpene resin production comprises a shell a, a shell b, a shell c and a shell d, wherein a filter cylinder is arranged in the shell a, the filter cylinder penetrates through the left side surface of the shell a and is fixedly connected to the right side surface of a fixing plate, the fixing plate is detachably connected with the left side surface of the shell a through two bolts, the two bolts are arranged in an up-and-down symmetrical mode, the upper surface of the filter cylinder is in threaded connection with a feed pipe, the top end of the feed pipe is communicated with a feed hopper, the top end of the feed pipe upwards extends through the upper surface of the shell a, a silica gel sleeve is sleeved on the outer surface of the feed pipe and is clamped on the upper surface of the shell a, the right side surface of the shell a is communicated with the left side surface of the shell b, a helical blade is arranged in the shell b, the right end of the helical blade is fixedly connected with an output, the lower surface of the motor b is fixedly connected with the right side surface of the shell b through a mounting plate b, the motor b is electrically connected with an external control switch, the lower surface of the shell b is communicated with the upper surface of the shell c through a connecting pipe, the upper surface of the shell c is fixedly connected with the lower surface of the shell a, the right side surface of the shell c is provided with the motor c, an output shaft of the motor c penetrates through the right side surface of the shell c and is fixedly connected with the right ends of the fixing rods b, the number of the fixing rods b is two, the two fixing rods b are arranged in bilateral symmetry, one ends, opposite to the two fixing rods b, of the two fixing rods b are fixedly connected with bevel gears a, the two bevel gears a are meshed with the outer surfaces of the bevel gears b, the lower surfaces of the bevel gears b are fixedly connected with rotating shafts, the outer surfaces of the rotating shafts are sleeved with bearings a, the bearings, and bearing b joint is at the left surface of casing c inner wall, the external fixed surface of dead lever b is connected with the puddler, be provided with the connecting plate in the casing c, and the shape of connecting plate is circular, the external fixed surface of connecting plate is connected with the sponge brush, and the surface of sponge brush and the inner wall laminating of casing c, the lower surface of connecting plate is seted up flutedly, the left surface intercommunication of casing c has the discharging pipe.

Preferably, the inner wall of the shell a is fixedly connected with a limiting plate, and the limiting plate is circular.

Preferably, a fixing rod a is arranged in the shell a, the outer surface of the fixing rod a is fixedly connected with a stirring plate, a sealing bearing is sleeved on the outer surface of the fixing rod a and is clamped on the right side face of the fixing plate, the left end of the fixing rod a is fixedly connected with an output shaft of the motor a, the back face of the motor a is fixedly connected with the left side face of the fixing plate through a mounting plate a, and the motor a is electrically connected with the external control switch.

Preferably, a plurality of metal wires are arranged in the shell a, and the metal wires are uniformly arranged in the filter cylinder in a circular ring shape.

Preferably, the outer surface of the filter cylinder is sleeved with a rubber ring, and the rubber ring is clamped on the left side surface of the inner wall of the shell a.

preferably, a through hole is formed in the upper surface of the shell b, a filter screen is arranged in the through hole, the upper surface of the filter screen is fixedly connected with a mounting seat, and the lower surface of the mounting seat is detachably connected with the upper surface of the shell b.

Preferably, the front and the back of the shell c are both fixedly connected with a shell d, an electric heating pipe is arranged in the shell d and is electrically connected with an external control switch, and a sponge cushion is arranged in the shell d.

preferably, the equal fixedly connected with permanent magnet in both sides around the connecting plate right flank, the right flank fixedly connected with curb plate of casing c inner wall, and the left surface of curb plate has seted up the spacing groove, and is provided with a plurality of electro-magnet in the spacing groove, electro-magnet and external control switch electric connection.

Preferably, a threaded hole is formed in the left side face of the connecting plate, a sliding rod is connected to the threaded hole in an internal thread manner, a sliding sleeve is sleeved on the outer surface of the sliding rod and is connected to the left side face of the shell c in a clamped manner, a screwing ring is fixedly connected to the left end of the sliding rod, and a piston is fixedly connected to the upper surface of the shell c through a fixing rope.

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

The stirring tank for terpene resin production comprises a filter cylinder and a stirring plate, wherein the stirring plate can stir raw materials for the first time, the raw materials can be thrown out in the stirring process and filtered through the filter cylinder, so that impurities in the raw materials can be removed, the raw materials can be effectively cut through the metal wire, the caking degree of the raw materials is reduced, the raw materials can be fully stirred, through the arrangement of a shell c, a fixed rod b and a stirring rod, the stirring rod can be driven to rotate when the fixed rod b rotates, the stirring rod can effectively stir the raw materials in the shell c, through the arrangement of a bevel gear a and a bevel gear b, under the action of the bevel gear b and the bevel gear a, every left stirring rod and the right stirring rod can reversely rotate to stir the raw materials for the second time, the stirring effect is improved through differential stirring, so that the raw materials can be more uniformly mixed, and the raw materials can flow into the shell b from the shell a, flow into the shell c through the shell b, and are discharged from the shell c without staying for too long time in the shell a, the shell c and the shell b, so that the raw material stirring effect is improved, and the raw material processing speed is increased.

This agitator tank is used in terpene resin production, through setting up helical blade, the drive raw materials that helical blade can be fine when rotatory remove for the raw materials can be in order and the efficient passes through casing b, and drops to in the casing c from casing b, through setting up the filter screen, the filter screen can carry out the secondary to the impurity in the raw materials and filter.

This agitator tank is used in production of terpene resin through setting up casing d and electric heating pipe, and electric heating pipe during operation can heat the air in the casing d, and the heat can transmit for casing c inboard through casing c's outer wall simultaneously for the raw materials can be heated, thereby makes stirring effect better, and through setting up the foam-rubber cushion, the foam-rubber cushion can avoid the heat to run off fast.

According to the stirring tank for terpene resin production, the connecting plate and the sponge brush are arranged, the sponge brush can be fixed by the connecting plate, the sponge brush can be driven to move left and right when the connecting plate moves left and right, the inner wall of the shell c can be well cleaned by the sponge brush, and residual raw materials are prevented from being left in the shell c.

Drawings

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

FIG. 2 is a schematic diagram of the right-view structure of the connecting plate and the sponge brush in the present invention;

FIG. 3 is a schematic cross-sectional view of a filter cartridge according to the present invention;

FIG. 4 is a schematic sectional view of the casing d of the present invention from above;

FIG. 5 is a front sectional view of the housing b of the present invention;

FIG. 6 is a left side view of the side plate and electromagnet of the present invention;

In the figure: 1. a shell a; 2. a housing b; 3. a housing c; 4. a motor b; 5. a limiting plate; 6. a filter cartridge; 7. a feed pipe; 8. a silica gel sleeve; 9. a bolt; 10. a fixing plate; 11. a motor a; 12. a piston; 13. a slide bar; 14. a sliding sleeve; 15. a discharge pipe; 16. a fixing rod b; 17. a stirring rod; 18. a bevel gear a; 19. a bevel gear b; 20. a sponge brush; 21. a side plate; 22. a motor c; 23. a threaded hole; 24. a connecting plate; 25. a permanent magnet; 26. a groove; 27. a rubber ring; 28. a stirring plate; 29. a metal wire; 30. a fixed rod a; 31. an electric heating tube; 32. a sponge cushion; 33. a housing d; 34. a mounting seat; 35. a filter screen; 36. a helical blade; 37. an electromagnet; 38. a limiting groove; 39. and (4) connecting the pipes.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.

referring to fig. 1-6, the present invention provides a technical solution: a stirring tank for terpene resin production comprises a shell a1, a shell b2, a shell c3 and a shell d33, wherein a filter cartridge 6 is arranged in a shell a1, the filter cartridge 6 penetrates through the left side surface of a shell a1 and is fixedly connected to the right side surface of a fixing plate 10, the fixing plate 10 is detachably connected with the left side surface of the shell a1 through two bolts 9, the two bolts 9 are symmetrically arranged up and down, the upper surface of the filter cartridge 6 is in threaded connection with a feed pipe 7, the top end of the feed pipe 7 is communicated with a feed hopper, the top end of the feed pipe 7 extends upwards to penetrate through the upper surface of the shell a1, the outer surface of the feed pipe 7 is sleeved with a silica gel sleeve 8, the silica gel sleeve 8 is clamped on the upper surface of a1, the right side surface of the shell a1 is communicated with the left side surface of a shell b2, a 2 is internally provided with a helical blade 36, the right end of the helical blade 36 is fixedly connected with an output shaft, the lower surface of a motor b4 is fixedly connected with the right side surface of a housing b2 through a mounting plate b, the motor b4 is electrically connected with an external control switch, the lower surface of the housing b2 is communicated with the upper surface of a housing c3 through a connecting pipe 39, the upper surface of the housing c3 is fixedly connected with the lower surface of a housing a1, the right side surface of the housing c3 is provided with a motor c22, an output shaft of the motor c22 penetrates through the right side surface of the housing c3 and is fixedly connected with the right end of a fixing rod b16, the number of the fixing rods b16 is two, two fixing rods b16 are symmetrically arranged left and right, one opposite ends of the two fixing rods b16 are fixedly connected with a bevel gear a18, the two bevel gears a18 are engaged with the outer surface of a bevel gear b19, the lower surface of the bevel gear b 42 is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is sleeved with a bearing a, the bearing a is clamped on, and bearing b joint is at the left surface of casing c3 inner wall, and the outer fixed surface of dead lever b16 is connected with puddler 17, is provided with connecting plate 24 in the casing c3, and connecting plate 24's shape is circular, and the outer fixed surface of connecting plate 24 is connected with sponge brush 20, and the surface of sponge brush 20 and the inner wall laminating of casing c3, and the lower surface of connecting plate 24 is seted up flutedly 26, and the left surface intercommunication of casing c3 has discharging pipe 15.

In this embodiment, the model numbers of the motor a11, the motor b4 and the motor c22 can be Y2-132M-4; the electric-heating pipe 31 may be of the model HZJRG.

The inner wall of the shell a1 is fixedly connected with a limiting plate 5, and the limiting plate 5 is circular; through setting up limiting plate 5, limiting plate 5 can avoid the raw materials to flow to the corner on casing a1 right side, avoids the unable effectual flow of raw materials to the casing b2 in.

The fixing rod a30 is arranged in the shell a1, the outer surface of the fixing rod a30 is fixedly connected with the stirring plate 28, the outer surface of the fixing rod a30 is sleeved with a sealing bearing, the sealing bearing is clamped on the right side face of the fixing plate 10, the left end of the fixing rod a30 is fixedly connected with the output shaft of the motor a11, the back face of the motor a11 is fixedly connected with the left side face of the fixing plate 10 through the mounting plate a, and the motor a11 is electrically connected with the external control switch; through setting up and straining a section of thick bamboo 6 and stirring board 28, stirring board 28 can carry out the first stirring to the raw materials, and the raw materials can be thrown away at the stirring in-process to it is filtered through straining a section of thick bamboo 6, makes the impurity in the raw materials can be rejected.

Wherein, a plurality of metal wires 29 are arranged in the shell a1, and the plurality of metal wires 29 are uniformly arranged in the filter cartridge 6 in a circular ring shape; through setting up wire 29, wire 29 can effectively cut the raw materials, reduces the caking degree of raw materials for the raw materials can be by intensive mixing.

Wherein, the outer surface of the filter cylinder 6 is sleeved with a rubber ring 27, and the rubber ring 27 is clamped on the left side surface of the inner wall of the shell a 1; by arranging the rubber ring 27, the rubber ring 27 can seal the gap between the inner wall of the shell a1 and the filter cartridge 6, so that raw materials are prevented from leaking.

The upper surface of the shell b2 is provided with a through hole, a filter screen 35 is arranged in the through hole, the upper surface of the filter screen 35 is fixedly connected with an installation seat 34, and the lower surface of the installation seat 34 is detachably connected with the upper surface of the shell b 2; through the arrangement of the filter screen 35, the filter screen 35 can carry out secondary filtration on impurities in the raw materials

The front side and the back side of the shell c3 are both fixedly connected with a shell d33, an electric heating pipe 31 is arranged in the shell d33, the electric heating pipe 31 is electrically connected with an external control switch, and a sponge pad 32 is arranged in the shell d 33; through setting up casing d33 and electric heating pipe 31, electric heating pipe 31 during operation can heat the air in casing d33, and the heat can be given for casing c3 inboard through the outer wall of casing c3 simultaneously for the raw materials can be heated, thereby makes the stirring effect better.

Permanent magnets 25 are fixedly connected to the front side and the rear side of the right side of the connecting plate 24, a side plate 21 is fixedly connected to the right side of the inner wall of the shell c3, a limiting groove 38 is formed in the left side of the side plate 21, a plurality of electromagnets 37 are arranged in the limiting groove 38, and the electromagnets 37 are electrically connected with an external control switch; by arranging the electromagnet 37 and the permanent magnet 25, the electromagnet 37 can generate a strong magnetic field when being electrified, so that the permanent magnet 25 can be effectively adsorbed, the connecting plate 24 is fixed, and the connecting plate 24 is prevented from moving freely in the shell c3 when not in use.

The left side surface of the connecting plate 24 is provided with a threaded hole 23, the threaded hole 23 is internally threaded with a sliding rod 13, the outer surface of the sliding rod 13 is sleeved with a sliding sleeve 14, the sliding sleeve 14 is clamped on the left side surface of a shell c3, the left end of the sliding rod 13 is fixedly connected with a screwing ring, and the upper surface of a shell c3 is fixedly connected with a piston 12 through a fixing rope; through setting up slide bar 13 and screw hole 23, slide bar 13 can threaded connection in screw hole 23, and then can effectually fix connecting plate 24, consequently can drive connecting plate 24 and remove when removing about slide bar 13, through setting up sliding sleeve 14, slide bar 13 can remove about in the sliding sleeve 14, therefore slide bar 13 is more stable when removing, through setting up piston 12, when slide bar 13 does not use, sliding sleeve 14 can be blockked up to piston 12, avoids the raw materials to spill from sliding sleeve 14.

The working principle and the using process of the invention are as follows: after the electric heating device is installed, a worker adds raw materials into a feeding pipe 7 through a feeding hopper, the raw materials fall into a filter cylinder 6 through the feeding pipe 7, a motor a11 is controlled to work, an output shaft of a motor a11 drives a stirring plate 28 to rotate through a fixing rod a30, the stirring plate 28 can stir the raw materials for the first time, the raw materials can be thrown out in the stirring process and filtered through the filter cylinder 6, impurities in the raw materials can be removed, the raw materials can flow into a shell b2, a motor b4 is controlled to work to drive a spiral blade 36 to rotate, the raw materials are filtered by a filter screen 35 and then move rightwards under the influence of the spiral blade 36, then the raw materials fall into a shell c3 through a connecting pipe 39, the electric heating pipe 31 is controlled to work, the air in a shell d33 can be heated when the electric heating pipe 31 works, and simultaneously heat can be transferred to the inner side of the shell c 36, therefore, the stirring effect is better, the motor c22 is controlled to work to drive the fixing rod b16 to rotate, the stirring rod 17 can be driven to rotate when the fixing rod b16 rotates, the stirring rod 17 can effectively stir the raw materials in the shell c3, under the action of the bevel gear b19 and the bevel gear a18, every left stirring rod and right stirring rod 17 can reversely rotate to stir the raw materials for the second time, the stirring effect is improved through differential stirring, the raw materials can be more uniformly mixed, the raw materials can be discharged from the discharge pipe 15 after being stirred, then a worker pulls the sliding rod 13 to move left and right through a twisting ring, the sliding rod 13 can drive the sponge brush 20 to move left and right through the connecting plate 24, the sponge brush 20 can well clean the inner wall of the shell c3, after the cleaning is completed, the connecting plate 24 is pushed to move right, the permanent magnet 25 can be attached to the electromagnet 37, and a strong magnetic field can be generated, so that the permanent magnet 25 can be effectively adsorbed, the connecting plate 24 is fixed, the worker rotates the sliding rod 13, the sliding rod 13 can leave the threaded hole 23, and finally the worker plugs the piston 12 into the sliding sleeve 14.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.