CN114208922A

CN114208922A - Full-automatic slabbing machine for viscous materials

Info

Publication number: CN114208922A
Application number: CN202111430954.2A
Authority: CN
Inventors: 殷祖荣; 郭寿新; 季小丽; 姜小雨
Original assignee: Jiangsu Hatel Machinery Co ltd
Current assignee: Jiangsu Hatel Machinery Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-03-22

Abstract

The invention discloses a full-automatic viscous material dicer, which relates to the technical field of candy production and specifically relates to a full-automatic viscous material dicer. This full-automatic slabbing machine of viscous material, drive two roots of a motor drive through first servo motor and rotate, break off liquid sugar and lead to inside the cooling squeeze box, drive two cooling squeeze rolls through second servo motor and rotate, extrude liquid sugar along the extrusion nozzle, and refresh the inside cooling water of cooling squeeze roll through the water-cooling machine, cool off the design when liquid sugar extrudees, the degree of difficulty that liquid sugar was stereotyped has been reduced, and the efficiency that liquid sugar cooling was stereotyped has been improved, the degree of automation is improved.

Description

Full-automatic slabbing machine for viscous materials

Technical Field

The invention relates to the technical field of candy production, in particular to a full-automatic dicing machine for viscous materials.

Background

The candy is a kind of candy cake, and refers to a snack taking saccharides as main components. If a fruit or nut-like food is coated with a sugar, it is called a sweet (e.g. a sugarcoated haws). Chocolate and chewing gum are also considered to be a type of candy in the broad sense of candy culture.

When candy production, especially hard candy, need melt through the raw materials, design, cut apart, several steps of slabbing, melt the back with the candy raw materials through melting equipment at present, need be with the liquid sugar after melting leading into the mould, carry out the design to the candy through the mould, wait the candy natural cooling after, cut apart, the slabbing becomes the fritter, whole complex operation, and liquid sugar cools off naturally, lead to candy production cycle extension, whole preparation efficiency is lower, adopt artifical manual to transport liquid sugar to in the design mould simultaneously, because liquid sugar temperature is higher, has certain potential safety hazard, for this reason we propose a full-automatic slabbing machine of viscous material in order to solve the above-mentioned problem.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a full-automatic dicing machine for viscous materials, which has the advantages of improving the automation degree, being more intelligent and efficient and the like, and solves the problems in the background technology.

In order to achieve the purposes of improving the automation degree and being more intelligent and efficient, the invention is realized by the following technical scheme: a full-automatic dicer for viscous materials comprises a first-stage mounting frame and a second-stage mounting frame, wherein the second-stage mounting frame is fixedly mounted on the front side of the first-stage mounting frame, a conveying belt is movably mounted at the top of the second-stage mounting frame, a cooling extrusion box positioned above the conveying belt is fixedly mounted on the front side of the first-stage mounting frame, a cutting box is fixedly mounted at the top of the cooling extrusion box, two groups of cooling extrusion rollers are arranged in the cooling extrusion box, a first-stage transmission gear is fixedly connected to the end parts of the two groups of cooling extrusion rollers, an outer baffle and a lower baffle which are matched with the cooling extrusion rollers are fixedly mounted in the cooling extrusion box, a water injection pipe matched with the cooling extrusion rollers is arranged on the front side of the cooling extrusion box, an extrusion nozzle is fixedly mounted at the bottom of the cooling extrusion box, two groups of waist wheels are arranged in the cutting box, and the end parts of the two groups of waist wheels are fixedly connected with a secondary transmission gear, one side inside the primary mounting rack is fixedly provided with a first servo motor and a second servo motor, the end part of any one secondary transmission gear is provided with a primary transmission mechanism in transmission connection with the conveying belt, the left side of the top part of the secondary mounting rack is provided with a powder spreading mechanism, the powder spreading mechanism comprises a powder spreading box and a powder spreading brush, one end of the primary transmission mechanism, which is far away from the secondary transmission gear, is provided with a secondary transmission mechanism which is matched with the powder spreading mechanism, the top of the secondary mounting rack is provided with a splitting mechanism, and one end of the splitting mechanism is provided with a three-stage transmission mechanism which is mutually matched with any one of the first-stage transmission gears, the water-cooling machine is characterized in that a cutting mechanism is arranged on the right side of the top of the secondary mounting rack, a control console is arranged on the front face of the primary mounting rack, and a water-cooling machine is fixedly mounted inside the secondary mounting rack.

Preferably, the axial cross-sectional shape of two sets of the lumbar gear is "8", and the angle between two sets of the lumbar gear is ninety degrees, and two the outside of the lumbar gear is tangent with the inner wall of the cutting-off box, the top fixed mounting of cutting-off box has the blowing fill.

Preferably, the outer edges of the two secondary transmission gears are meshed with each other, and the secondary transmission gear on the side edge of the primary transmission mechanism is fixedly connected with an output shaft of the first servo motor.

Preferably, the outer edges of the two first-stage transmission gears are meshed with each other, and the first-stage transmission gear on the side edge of the third-stage transmission mechanism is fixedly connected with an output shaft of the second servo motor.

Preferably, water injection pipe and cooling squeeze roll swing joint, the middle part of cooling squeeze roll is provided with the central water guide of mutually supporting with the water injection pipe, the inside of cooling squeeze roll is provided with the separation sleeve pipe that is located the central water guide outside, the inside of cooling squeeze roll is provided with and is located the outside spiral water course of separating the sleeve pipe, the outside of separating the sleeve pipe is provided with the apopore, and apopore and central water guide, spiral water course intercommunication.

Preferably, the water injection pipes at the end parts of the two cooling squeeze rollers are fixedly connected with a three-way water guide pipe, and the three-way water guide pipe is fixedly connected with a water outlet and a water inlet of the water cooler.

Preferably, the powder spreading brush is movably installed inside the powder spreading box, a discharge hole is formed in the bottom of the powder spreading box, and the powder spreading brush is in transmission connection with the first servo motor through a second-stage transmission mechanism and a first-stage transmission mechanism.

Preferably, the dicing mechanism comprises an arch frame, an electric telescopic rod and a cutter, the electric telescopic rod is fixedly arranged at the top of the arch frame, the cutter is fixedly arranged on an output shaft of the electric telescopic rod,

the invention provides a full-automatic dicer for viscous materials, which has the following beneficial effects:

1. this full-automatic slabbing machine of viscous material, drive two roots of a motor drive through first servo motor and rotate, break off liquid sugar and lead to inside the cooling squeeze box, drive two cooling squeeze rolls through second servo motor and rotate, extrude liquid sugar along the extrusion nozzle, and refresh the inside cooling water of cooling squeeze roll through the water-cooling machine, cool off the design when liquid sugar extrudees, the degree of difficulty that liquid sugar was stereotyped has been reduced, and the efficiency that liquid sugar cooling was stereotyped has been improved, the degree of automation is improved.

2. This full-automatic slabbing machine of viscous material, when secondary drive gear rotates, carry out the transmission through one-level drive mechanism and drive the conveyer belt and rotate and carry the candy, carry out the transmission through tertiary drive mechanism simultaneously, drive cutting mechanism and rotate and cut apart into the strip to the candy in the removal, follow-up electric telescopic handle through among the slabbing mechanism drives cutter reciprocating motion simultaneously, it is cubic with the candy cutting, the realization is to the cutting apart of candy, the stripping and slicing, further improve degree of automation, the production efficiency is improved, it is more intelligent high-efficient.

3. This full-automatic slabbing machine of viscous material, when one-level drive mechanism rotated, carry out the transmission through second grade drive mechanism, the shop's powder brush that drives among the shop's powder mechanism rotates, make the sugar whereabouts in the shop's powder case to make the hot water powder spread on the conveyer belt surface when the conveyer belt rotates, prevent that the candy from gluing on the conveyer belt surface, the candy of being convenient for is separated, stripping and follow-up collection, the device need not the staff to interfere when finalizing the design, cutting liquid sugar in addition, security and degree of automation have been improved.

Drawings

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

FIG. 2 is a schematic structural view of the back side of the primary mounting frame of the present invention;

FIG. 3 is a schematic structural view of the top of the secondary mounting frame of the present invention;

FIG. 4 is a schematic view of the internal structure of the cooling extrusion box and the cutting box of the present invention;

FIG. 5 is a schematic structural view of a cross section of a cooling extrusion box and a cutting box according to the present invention;

FIG. 6 is a schematic structural view of the powder spreading mechanism of the present invention;

fig. 7 is a schematic view of the slitting mechanism of the present invention.

In the figure: 1. a first-level mounting rack; 2. a secondary installation rack; 3. cooling the extrusion box; 31. cooling the extrusion roll; 32. a primary transmission gear; 33. an outer baffle; 34. a lower baffle plate; 35. a central water guide rod; 36. a spacer sleeve; 37. a spiral water channel; 38. a water outlet hole; 39. a water injection pipe; 4. a cutting box; 41. a waist wheel; 42. a secondary transmission gear; 5. a discharge hopper; 6. an extrusion nozzle; 7. a primary transmission mechanism; 8. a secondary transmission mechanism; 9. a powder spreading mechanism; 91. spreading a powder box; 92. spreading a powder brush; 10. a slitting mechanism; 11. a third-stage transmission mechanism; 12. a conveyor belt; 13. a water cooling machine; 14. a first servo motor; 15. a second servo motor; 16. a console; 17. and a dicing mechanism.

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.

Referring to fig. 1, the present invention provides a technical solution: a full-automatic dicer for viscous materials comprises a first-stage installation rack 1 and a second-stage installation rack 2, wherein the front of the first-stage installation rack 1 is fixedly provided with the second-stage installation rack 2, the top of the second-stage installation rack 2 is movably provided with a conveying belt 12, the front of the first-stage installation rack 1 is fixedly provided with a cooling extrusion box 3 positioned above the conveying belt 12, the top of the cooling extrusion box 3 is fixedly provided with a cutting box 4, the inside of the cooling extrusion box 3 is provided with two groups of cooling extrusion rollers 31, the end parts of the two groups of cooling extrusion rollers 31 are fixedly connected with a first-stage transmission gear 32, the inside of the cooling extrusion box 3 is fixedly provided with an outer baffle 33 and a lower baffle 34 which are mutually matched with the cooling extrusion rollers 31, the front of the cooling extrusion box 3 is provided with a water injection pipe 39 which is mutually matched with the cooling extrusion rollers 31, the bottom of the cooling extrusion box 3 is fixedly provided with an extrusion nozzle 6, the inside of the cutting box 4 is provided with two groups of waist wheels 41, the end parts of the two groups of waist wheels 41 are fixedly connected with a second-stage transmission gear 42, one side inside the first-stage installation rack 1 is fixedly provided with a first servo motor 14 and a second servo motor 15, the end part of any one second-stage transmission gear 42 is provided with a first-stage transmission mechanism 7 in transmission connection with the conveying belt 12, the left side of the top part of the second-stage installation rack 2 is provided with a powder spreading mechanism 9, the powder spreading mechanism 9 comprises a powder spreading box 91 and a powder spreading brush 92, one end of the first-stage transmission mechanism 7, far away from the second-stage transmission gear 42, is provided with a second-stage transmission mechanism 8 mutually matched with the powder spreading mechanism 9, the top part of the second-stage installation rack 2 is provided with a splitting mechanism 10, one end of the splitting mechanism 10 is provided with a third-stage transmission mechanism 11 mutually matched with any one first-stage transmission gear 32, the right side of the top part of the second-stage installation rack 2 is provided with a splitting mechanism 17, and the front surface of the first-stage installation rack 1 is provided with a control board 16, the water cooler 13 is fixedly mounted inside the secondary mounting frame 2, the three-way water guide pipes are fixedly connected to the water injection pipes 39 at the end parts of the two cooling squeeze rollers 31, the three-way water guide pipes are fixedly connected with the water outlet and the water inlet of the water cooler 13, the water outlet and the water inlet of the water cooler 13 are respectively communicated with the two water injection pipes 39 through the three-way water guide pipes, the water cooler 13 can replace and refresh the cooling water inside the cooling squeeze rollers 31, and the cooling water inside the cooling squeeze rollers 31 is always in a low-temperature state.

Referring to fig. 3, the axial cross-sectional shapes of the two sets of the pulleys 41 are both "8", the angle between the two sets of the pulleys 41 is ninety degrees, when the two pulleys 41 rotate, the liquid sugar can be cut off, so that the liquid sugar can be quantitatively guided into the cooling and extruding box 3, the liquid sugar is prevented from being blocked in the discharging hopper 5 due to viscosity, meanwhile, the cooling and extruding box 3 is prevented from being blocked, the outer parts of the two pulleys 41 are tangent to the inner wall of the cutting box 4, the discharging hopper 5 is fixedly arranged at the top of the cutting box 4, the discharging hopper 5 is arranged at the top of the cutting box 4, a large amount of liquid sugar can be guided into the discharging hopper 5, the adding period of the liquid sugar is prolonged, and the labor intensity is reduced.

Referring to fig. 2 and 3, the outer edges of the two secondary transmission gears 42 are engaged with each other, the secondary transmission gear 42 on the side of the primary transmission mechanism 7 is fixedly connected with the output shaft of the first servo motor 14, and when the first servo motor 14 drives the secondary transmission gear 42 on the output shaft to rotate, the two secondary transmission gears 42 are driven by the two sets of secondary transmission gears 42, so that the first servo motor 14 can drive the two secondary transmission gears 42 to rotate simultaneously, the liquid sugar is guided into the cooling and extruding box 3, and the effectiveness of the device is ensured.

Referring to fig. 2 and 3, the outer edges of the two first-stage transmission gears 32 are engaged with each other, the first-stage transmission gears 32 on the sides of the third-stage transmission mechanism 11 are fixedly connected with the output shaft of the second servo motor 15, and when the second servo motor 15 drives the first-stage transmission gears 32 on the output shaft to rotate, the two sets of first-stage transmission gears 32 are used for transmission, so that the second servo motor 15 can drive the two first-stage transmission gears 32 to rotate simultaneously, thereby extruding the liquid sugar, shaping the liquid sugar, and ensuring the effectiveness of the device, wherein the first servo motor 14 and the second servo motor 15 are electrically connected with the console 16.

Referring to fig. 5, a water injection pipe 39 is movably connected to the cooling squeeze roller 31, one end of the water injection pipe 39 is provided with two connectors respectively connected to a book outlet and a water inlet of the water cooler 13, so that the water cooler 13 can replace and refresh the cooling water in the cooling squeeze roller 31, the middle of the cooling squeeze roller 31 is provided with a central water guide 35 matched with the water injection pipe 39, the cooling squeeze roller 31 is internally provided with a separation sleeve 36 positioned outside the central water guide 35, the cooling squeeze roller 31 is internally provided with a spiral water channel 37 positioned outside the separation sleeve 36, the separation sleeve 36 is externally provided with a water outlet 38, the water outlet 38 is communicated with the central water guide 35 and the spiral water channel 37, and it is ensured that the low-temperature cooling water in the water cooler 13 can be guided into the spiral water channel 37 along the water injection pipe 39, the central water guide 35 and the water outlet 38, so as to realize the cooling and sizing of the liquid sugar, meanwhile, the water cooler 13 can suck the cooling water with higher temperature in the spiral water channel 37 into the water cooler 13 again along the water outlet hole 38, the central water guide 35 and the water injection pipe 39.

Referring to fig. 2 and 6, the powder spreading brush 92 is movably mounted inside the powder spreading box 91, a discharge hole is formed in the bottom of the powder spreading box 91, the powder spreading brush 92 is in transmission connection with the first servo motor 14 through the second-stage transmission mechanism 8 and the first-stage transmission mechanism 7, when the first-stage transmission mechanism 7 rotates, the second-stage transmission mechanism 8 is used for transmission to drive the powder spreading brush 92 in the powder spreading mechanism 9 to rotate, so that sugar in the powder spreading box 91 falls, the soup powder is spread on the surface of the conveying belt 12 when the conveying belt 12 rotates, the candy is prevented from being adhered to the surface of the conveying belt 12, and the candy is convenient to separate, cut and subsequently collect.

Referring to fig. 2 and 7, the dicing mechanism 17 includes an arch frame, an electric telescopic rod and a cutter, the electric telescopic rod is fixedly mounted on the top of the arch frame, the cutter is fixedly mounted on an output shaft of the electric telescopic rod, the electric telescopic rod in the dicing mechanism 17 drives the cutter to reciprocate, candy is cut into blocks, the candy is cut and diced, the automation degree is further improved, the production efficiency is improved, and the electric telescopic rod is electrically connected with the console 16.

In conclusion, when the full-automatic viscous material dicer is used, liquid sugar is introduced into the discharging hopper 5, sugar powder is added into the powder spreading box 91, the transmission is realized through the two secondary transmission gears 42, the control console 16 controls the first servo motor 14 to drive the two waist wheels 41 to rotate simultaneously, the liquid sugar is introduced into the cooling extrusion box 3 in sections and is transmitted through the two primary transmission gears 32, the control console 16 controls the second servo motor 15 to drive the two cooling extrusion rollers 31 to rotate, the liquid sugar entering the cooling extrusion box 3 is extruded, the extruded liquid sugar is extruded along the extrusion nozzles 6, meanwhile, when the cooling extrusion rollers 31 rotate, the control console 16 controls the water cooler 13 to work, low-temperature cooling water is injected into the spiral water channels 37 of the cooling extrusion rollers 31 along the water injection pipe 39, the central water guide 35 and the water outlet 38, and when the cooling extrusion rollers 31 extrude the liquid sugar, cooling the extruded flaky sugar, so as to rapidly cool the extruded flaky sugar, meanwhile, the console 16 controls the water cooler 13 to change and refresh the cooling water at intervals of fixed time, the first-stage transmission mechanism 7 and the second-stage transmission mechanism 8 are used for transmission, when the first servo motor 14 drives the first-stage transmission gear 32 to rotate, the conveyer belt 12 is driven to rotate to convey the fallen candy, the powder spreading brush 92 in the powder spreading mechanism 9 is driven to rotate, the powdered sugar in the powder spreading box 91 is discharged along the discharge hole at the bottom and spread on the surface of the conveyer belt 12, the candy is prevented from being adhered on the surface of the conveyer belt 12, meanwhile, the third-stage transmission mechanism 11 is used for transmission, when the second servo motor 15 drives the first-stage transmission gear 32 to rotate, the slitting mechanism 10 is driven to rotate to divide the flaky candy into strips, and simultaneously, the console 16 controls the electric telescopic rod in the slicing mechanism 17 to drive the cutter to move back and forth, and cutting the strip-shaped candy into blocks to realize cooling, shaping, cutting and dicing of the liquid candy.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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.

Claims

1. The utility model provides a full-automatic slabbing machine of viscous material, includes one-level installation frame (1), second grade installation frame (2), its characterized in that: the front fixed mounting of one-level installation frame (1) has second grade installation frame (2), and the top movable mounting of second grade installation frame (2) has conveyer belt (12), the front fixed mounting of one-level installation frame (1) has cooling extrusion case (3) that is located conveyer belt (12) top, and the top fixed mounting of cooling extrusion case (3) has cut-off box (4), the inside of cooling extrusion case (3) is provided with two sets of cooling extrusion roller (31), and the tip fixedly connected with one-level drive gear (32) of two sets of cooling extrusion roller (31), the inside fixed mounting of cooling extrusion case (3) has outer baffle (33) and lower baffle (34) of mutually supporting with cooling extrusion roller (31), the front of cooling extrusion case (3) is provided with water injection pipe (39) of mutually supporting with cooling extrusion roller (31), the bottom fixed mounting of cooling extrusion case (3) has extrusion mouth (6), the inside of cutting off case (4) is provided with two sets of belt pulleys (41), and the equal fixedly connected with secondary drive gear (42) of tip of two sets of belt pulleys (41), one side fixed mounting in inside one-level installing frame (1) has first servo motor (14), second servo motor (15), arbitrary secondary drive gear's (42) tip is provided with one-level drive mechanism (7) of being connected with conveyer belt (12) transmission, the left side at second level installing frame (2) top is provided with shop's powder mechanism (9), and shop's powder mechanism (9) are including shop's powder case (91), shop's powder brush (92), the one end that secondary drive gear (42) were kept away from in one-level drive mechanism (7) is provided with and spreads the second drive mechanism (8) that powder mechanism (9) mutually supported, the top of second level installing frame (2) is provided with cutting mechanism (10), and one end of the splitting mechanism (10) is provided with a three-stage transmission mechanism (11) which is matched with any one of the first-stage transmission gears (32), the right side of the top of the second-stage installation rack (2) is provided with a cutting mechanism (17), the front of the first-stage installation rack (1) is provided with a control console (16), and the inside of the second-stage installation rack (2) is fixedly provided with a water cooling machine (13).

2. The full-automatic dicer for viscous materials according to claim 1, characterized in that: two sets of the axial cross-sectional shape of waist wheel (41) is "8", and two sets of angle between waist wheel (41) is ninety degrees, two the outside of waist wheel (41) all is tangent with the inner wall of cut-off box (4), the top fixed mounting of cut-off box (4) has blowing fill (5).

3. The full-automatic dicer for viscous materials according to claim 1, characterized in that: the outer edges of the two secondary transmission gears (42) are meshed with each other, and the secondary transmission gear (42) on the side edge of the primary transmission mechanism (7) is fixedly connected with an output shaft of the first servo motor (14).

4. The full-automatic dicer for viscous materials according to claim 1, characterized in that: the outer edges of the two first-stage transmission gears (32) are meshed with each other, and the first-stage transmission gear (32) on the side edge of the third-stage transmission mechanism (11) is fixedly connected with an output shaft of the second servo motor (15).

5. The full-automatic dicer for viscous materials according to claim 1, characterized in that: water injection pipe (39) and cooling squeeze roll (31) swing joint, the middle part of cooling squeeze roll (31) is provided with the central water guide (35) of mutually supporting with water injection pipe (39), the inside of cooling squeeze roll (31) is provided with and is located the partition sleeve pipe (36) in central water guide (35) outside, the inside of cooling squeeze roll (31) is provided with and is located the outside spiral water course (37) of partition sleeve pipe (36), the outside of partition sleeve pipe (36) is provided with apopore (38), and apopore (38) and central water guide (35), spiral water course (37) intercommunication.

6. The full-automatic dicer for viscous materials according to claim 5, characterized in that: and the water injection pipes (39) at the end parts of the two cooling squeeze rollers (31) are fixedly connected with a three-way water guide pipe, and the three-way water guide pipe is fixedly connected with a water outlet and a water inlet of the water cooler (13).

7. The full-automatic dicer for viscous materials according to claim 1, characterized in that: spread powder brush (92) movable mounting in the inside of spreading powder case (91), the discharge gate has been seted up to the bottom of spreading powder case (91), spread powder brush (92) and be connected with first servo motor (14) transmission through secondary drive mechanism (8), one-level drive mechanism (7).

8. The full-automatic dicer for viscous materials according to claim 1, characterized in that: the dicing mechanism (17) comprises an arch frame, an electric telescopic rod and a cutter, wherein the electric telescopic rod is fixedly installed at the top of the arch frame, and the cutter is fixedly installed on an output shaft of the electric telescopic rod.