A paste filling machine

Abstract

This application relates to the technical field of filling equipment and discloses a paste filling machine, which includes a base, a hopper mounted on the base, a cover on the hopper, a filling assembly for filling the paste from the hopper into a container, and a cleaning assembly for cleaning the paste from the inner wall of the hopper. The hopper has a receiving cavity for storing the paste. The cleaning assembly includes a cleaning rod, a mounting sleeve threaded onto the cleaning rod, several telescopic rods mounted on the mounting sleeve, a scraper detachably connected to the telescopic rods, and a power component for driving the cleaning rod to rotate circumferentially. The telescopic rods are equipped with a rotating component for driving the scraper to a horizontal position. The hopper is equipped with a lifting component for driving the cover to move vertically, and a limiting component linked to the lifting component. The limiting component can move into the receiving cavity when the lifting component drives the cover to rise, thereby limiting the horizontal rotation of the scraper. This application eliminates the need to remove the cover when cleaning the paste residue on the scraper, making operation convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filling equipment, and in particular to a paste filling machine. BACKGROUND

[0002] The paste filling machine is an automatic filling system composed of precision pneumatic components using compressed air as power. Its principle is to use air pressure to make the paste enter the injection head from the storage tank, and then inject the paste into the container through the injection head. It has the advantages of simple operation, sensitive and reliable action, and is widely used in pharmaceutical, chemical, food and cosmetic industries.

[0003] In the related art, a paste filling machine with publication number CN209382324U is disclosed, which includes a base, a hopper located above the base, a cover is arranged on the hopper, a rotating cover is rotatably connected in the middle of the cover, a motor and a cleaning assembly are connected on the rotating cover, and the motor is used to drive the cleaning assembly to rotate circumferentially. The cleaning assembly includes a scraper and a brush arranged side by side on the same circle of the hopper, and the rotating track of the scraper and the brush is in contact with the inner wall of the hopper. When the inner wall of the hopper is stuck with paste that needs to be cleaned, the motor is started, and the rotating cover will drive the scraper and the brush to rotate, thereby scraping the paste adhering to the inner wall of the hopper.

[0004] Since the scraper will inevitably have paste residues when the cleaning assembly is working, in order to reduce the influence of the paste residues on the scraping effect of the scraper, the scraper needs to be cleaned regularly. However, the cleaning assembly in the above-mentioned paste filling machine is fixedly installed on the rotating cover, and when cleaning the paste on the scraper, the cover needs to be manually removed from the hopper so that the scraper can be taken out for cleaning. The operation is cumbersome and needs to be improved. SUMMARY

[0005] In order to facilitate the cleaning of the paste residues on the scraper, the present application provides a paste filling machine.

[0006] The paste filling machine provided by the present application adopts the following technical scheme:

[0007] The paste filling machine comprises a base, a hopper arranged on the base, a hopper cover covering the hopper, a filling assembly for filling the paste in the hopper into a container, and a cleaning assembly for cleaning the paste on the inner wall of the hopper. The hopper is provided with a containing cavity for storing the paste. The cleaning assembly comprises a cleaning rod, a mounting sleeve threadedly connected to the cleaning rod, a plurality of telescopic rods arranged on the mounting sleeve, a scraper detachably connected to the telescopic rods, and a power member for driving the cleaning rod to rotate circumferentially. The scraper abuts against the inner wall of the hopper. The telescopic rods are provided with a rotating member for driving the scraper to rotate to a horizontal state. The hopper is provided with a lifting member for driving the hopper cover to move vertically, and a limiting member linked with the lifting member. The limiting member can move into the containing cavity when the lifting member drives the hopper cover to move upward, so as to limit the horizontal rotation of the scraper.

[0008] By using the above technical scheme, when the paste adheres to the inner wall of the hopper and needs to be cleaned, the power member is started, and the cleaning rod drives the mounting sleeve, the telescopic rods and the scraper to rotate horizontally, so that the scraper is used to scrape off the paste on the side wall of the hopper. The provision of the cleaning assembly not only saves the trouble of manually cleaning the hopper, but also improves the cleaning efficiency. In addition, the cleaning assembly can reduce the waste of paste and improve the utilization rate of paste, thereby achieving energy saving and environmental protection.

[0009] When the paste remaining on the scraper needs to be cleaned, the scraper is first driven by the rotating member to rotate to a horizontal state, and the position of the scraper corresponds to that of the limiting member. Then, the hopper cover is driven by the lifting member to move upward, so that the gap between the hopper cover and the hopper is increased. At the same time, the limiting member moves into the containing cavity to limit the horizontal rotation of the scraper. After the power member is started, the scraper cannot rotate horizontally due to the action of the limiting member. Therefore, in the process of circumferential rotation of the cleaning rod, the mounting sleeve drives the telescopic rods and the scraper to move vertically, so that the scraper moves into the gap formed by the hopper cover and the hopper. At this time, the operator can detach the scraper from the telescopic rods, so as to take out the scraper for cleaning. The scraper does not need to be detached from the hopper cover before being taken out, and the operation is simple and convenient.

[0010] Optionally, the lifting member comprises a jacking block arranged below the hopper cover and a lifting cylinder for driving the jacking block to move vertically. The limiting member comprises a connecting rod horizontally arranged in the hopper, two penetrating rods fixed to one side of the connecting rod facing the containing cavity, and limiting blocks fixed to the penetrating rods away from the connecting rod. The horizontal distance between the two limiting blocks is not less than the length of the scraper. An inclined guide surface is arranged at the end of the connecting rod away from the penetrating rods. When the jacking block is driven by the lifting cylinder to move upward, the jacking block will contact the inclined guide surface and push the limiting blocks into the containing cavity.

[0011] By adopting the technical scheme, when the lifting cylinder drives the jacking block to move upward, the jacking block pushes the material cover upward, so that a gap for horizontal movement of the scraper is formed between the material cover and the hopper. During the upward movement of the jacking block, the jacking block is in contact with the guide slope, so as to gradually push the connecting rod, the rod and the limiting block into the accommodating cavity, so that the limiting block extends into the accommodating cavity and limits the horizontal rotation of the scraper. The limiting block can be linked with the jacking block when the jacking block moves upward, and has the advantages of high automation degree and good linkage.

[0012] Optionally, the limiting member further comprises a reset spring sleeved outside the rod, one end of the reset spring abuts against the connecting rod, and the other end abuts against the hopper, and when the reset spring is in a natural state, the limiting block is located inside the side wall of the hopper.

[0013] By adopting the technical scheme, when the lifting cylinder drives the jacking block to move upward, the jacking block pushes the material cover upward, so that a gap for horizontal movement of the scraper is formed between the material cover and the hopper. During the upward movement of the jacking block, the jacking block is in contact with the guide slope, so as to gradually push the connecting rod, the rod and the limiting block into the accommodating cavity, so that the limiting block extends into the accommodating cavity and limits the horizontal rotation of the scraper. The limiting block can be linked with the jacking block when the jacking block moves upward, and has the advantages of high automation degree and good linkage.

[0014] Optionally, the rotating member comprises a rotating motor fixedly embedded in the telescopic rod, and a rotating stud arranged on an output shaft of the rotating motor, and the scraper is provided with a rotating threaded hole threadedly matched with the rotating stud.

[0015] By adopting the technical scheme, when the rotating motor works, the rotating stud rotates synchronously with the output shaft of the rotating motor, so that the scraper rotates around the rotating stud, thereby changing the inclination state of the scraper. When the side wall of the hopper is cleaned, the scraper can be rotated to a vertical state to increase the contact area of the scraper with the hopper during horizontal rotation of the scraper, thereby improving the scraping effect; when the residual paste on the scraper is cleaned, the scraper can be rotated to a horizontal state to reduce the length of the scraper in the vertical direction, thereby reducing the distance required for the material cover to move upward when the scraper is removed, and saving space.

[0016] In addition, the rotating motor is fixedly embedded in the telescopic rod, which not only further reduces the occupied space of the cleaning assembly in the hopper, but also protects the rotating motor, so that the paste is less likely to penetrate into the interior of the rotating motor, thereby avoiding negative effects on the operation of the rotating motor. The scraper is detachably connected to the telescopic rod through the threaded cooperation of the rotating stud and the rotating threaded hole, and the connection strength is high and the disassembly and assembly are convenient.

[0017] Optionally, a stop block is fixed to the inner wall of the hopper, and when the scraper is rotated to abut against the stop block, the rotating stud is located on the perpendicular bisector of the horizontal connecting line of the two limiting blocks.

[0018] By adopting the above technical scheme, when the scraper rotates to abut against the stop block, the scraper is just between the two limiting blocks after being rotated to the horizontal state. The stop block can control the rotation range of the scraper, so as to correspond the position of the scraper to the limiting block quickly.

[0019] Optionally, the scraper comprises a base block connected with the rotating stud, a silica gel block detachably connected with the base block, and a sharp end of the silica gel block away from the base block; a vertical base groove is formed in the base block, and fastening grooves are formed in opposite groove walls of the base groove; the silica gel block is vertically embedded in the base groove, and fastening blocks are integrally formed on opposite sides of the silica gel block; and the fastening blocks are inserted and matched with the fastening grooves.

[0020] By adopting the above technical scheme, since the silica gel block is detachably connected with the base block, after the silica gel block is abraded after long-time use, the silica gel block can be detached from the base groove, so that the abraded silica gel block can be replaced alone, thereby reducing the replacement cost of the scraper. The silica gel block and the base block are connected by vertical insertion, which has the effects of simple structure and convenient disassembly and assembly; and the fastening blocks and the fastening grooves can further increase the connection area of the silica gel block and the base block and improve the connection stability of the two.

[0021] Optionally, the telescopic rod comprises a fixed part fixedly connected with the mounting sleeve, a movable part located on a side of the fixed part away from the mounting sleeve, a connecting part horizontally slidingly arranged between the fixed part and the movable part, and a telescopic spring for pushing the connecting part towards the movable part; and the telescopic direction of the telescopic spring is parallel to the moving direction of the connecting part.

[0022] By adopting the above technical scheme, the telescopic spring has a tendency to drive the connecting part to move towards the fixed part, so that the scraper can continuously abut against the side wall of the hopper, and the scraping effect is good. In addition, the length of the telescopic rod is adjustable, so that the distance between the scraper and the cleaning rod is variable, thereby enabling the cleaning assembly to be correspondingly installed in hoppers with different inner diameters, and the application range is large and the practicality is high.

[0023] Optionally, anti-dropping parts are fixedly arranged on both sides of the connecting part along the horizontal direction; anti-dropping grooves for slidingly arranging the adjacent anti-dropping parts are formed in the fixed part and the movable part; connecting holes for slidingly arranging the connecting part are formed in groove walls of the anti-dropping grooves; and the inner diameter of the connecting hole is smaller than the diameter of the anti-dropping part.

[0024] By adopting the above technical scheme, the anti-dropping part can limit the separation of the connecting part from the fixed part and the movable part, thereby improving the integrity of the telescopic rod.

[0025] Optionally, an active ring is fixedly arranged on the circumferential side wall of the cleaning rod and located below the mounting sleeve; and a rubber pad is arranged between the active ring and the mounting sleeve.

[0026] By adopting the technical scheme, the movable ring is located at the lower side of the mounting sleeve and serves to support the mounting sleeve, so that the mounting sleeve is not prone to sliding under the action of its own gravity when the scraper rotates horizontally, which helps to improve the stability of the mounting sleeve and the scraper. The rubber pad is arranged between the movable ring and the mounting sleeve, which not only serves to buffer when the mounting sleeve rotates to abut against the movable ring, but also increases the friction resistance between the mounting sleeve and the movable ring, so that the mounting sleeve is not prone to rotating relative to the cleaning rod when the scraper rotates horizontally.

[0027] Optionally, an annular water storage cavity is arranged in the side wall of the hopper, and a water inlet pipe and a water outlet pipe are connected to the water storage cavity, and a water pump is connected to the side of the water outlet pipe away from the hopper; a flushing assembly is arranged on the hopper cover, and the flushing assembly comprises an annular pipe arranged on the lower side of the hopper cover, a water guide pipe fixedly connected to the annular pipe, and a plurality of spray heads arranged at intervals on the annular pipe, wherein the water outlet direction of the spray heads is arranged towards the inner wall of the hopper, and a conductive hose is connected between the water outlet end of the water pump and the water guide pipe.

[0028] By adopting the technical scheme, when the paste is filled, the operator can pour hot water into the water storage cavity through the water inlet pipe to increase the temperature inside the hopper, thereby improving the flowability of the paste in the hopper. After the filling is completed, the water pump is started, the water in the water storage cavity flows out through the water outlet pipe, and then enters the annular pipe through the conductive hose and the water guide pipe, and finally is sprayed onto the inner wall of the hopper through the spray heads, thereby further flushing the paste adhered to the side wall of the hopper, and the cleaning effect is good.

[0029] In summary, the present application has at least one of the following beneficial technical effects:

[0030] 1. When the cleaning assembly is in operation, the scraper rotates horizontally and scrapes off the paste, thereby reducing waste, saving energy and being environmentally friendly; when the paste remaining on the scraper needs to be cleaned, the scraper is turned to a horizontal state, the lifting member is started, the limiting member moves into the accommodating cavity and limits the horizontal rotation of the scraper, and if the driving member is started at this time, the scraper moves upward relative to the hopper, so that the scraper can be removed and cleaned separately, and the operation is simple and convenient;

[0031] 2. When the lifting cylinder drives the jacking block to move upward, the connecting rod is pushed by the jacking block to the side close to the accommodating cavity, so that the limiting block automatically extends into the accommodating cavity to limit the horizontal rotation of the scraper; when the lifting cylinder drives the jacking block to move downward, the connecting rod moves away from the accommodating cavity under the action of the return spring, so that the limiting block automatically retracts into the side wall of the hopper to prevent the limiting block from interfering with the rotation of the scraper;

[0032] 3. The scraper comprises a base block and a silica gel block which are detachably connected, so that the silica gel block can be replaced individually after long-term use and wear, and the replacement cost is low; the length of the telescopic rod is adjustable, so that the distance between the scraper and the cleaning rod is variable to adapt to hoppers of different sizes, and the cleaning assembly has a wide application range and high practicality. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0034] Figure 2 This is a partial schematic diagram of the limiting block moving into the side wall of the hopper in an embodiment of this application.

[0035] Figure 3 This is a schematic diagram of the cleaning component and bracket in an embodiment of this application.

[0036] Figure 4 This is a cross-sectional schematic diagram of the telescopic rod and scraper in the embodiments of this application.

[0037] Figure 5 This is a schematic diagram of the scraper structure in an embodiment of this application.

[0038] Figure 6 This is a partial cross-sectional view of an embodiment of this application.

[0039] Figure 7 yes Figure 6 Enlarged diagram of point A in the middle.

[0040] Figure 8 This is a schematic diagram of the lifting component and the limiting component in the embodiments of this application.

[0041] Figure 9 This is a partial schematic diagram of the limiting block moving out of the hopper sidewall in an embodiment of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1, base; 11, water pump; 12, conduction hose; 2, hopper; 21, containing cavity; 22, support; 23, water storage cavity; 24, water inlet pipe; 25, water outlet pipe; 26, chute; 27, connecting groove; 28, limiting groove; 29, stop block; 3, cover; 4, filling assembly; 41, on-off valve; 42, barrel; 43, filling cylinder; 44, injection head; 5, cleaning assembly; 51, cleaning rod; 511, positioning disc; 512, movable ring; 513, rubber pad; 52, mounting sleeve; 53, telescopic rod; 531, fixed part; 532, movable part; 533, connecting part; 534, telescopic spring; 535, anti-dropping part; 536, anti-dropping groove; 537, connecting hole; 538, clearance groove; 54, scraper; 541, base block; 542, silica gel block; 543, base groove; 544, fastening groove; 545, fastening block; 546, rotating screw hole; 55, power member; 56, rotating member; 561, rotating motor; 562, rotating stud; 6, flushing assembly; 61, annular pipe; 62, water inlet pipe; 63, spray head; 7, lifting member; 71, jacking block; 711, push part; 712, jacking part; 72, lifting cylinder; 8, limiting member; 81, connecting rod; 811, guide slope; 82, through rod; 83, limiting block; 84, return spring. DETAILED DESCRIPTION

[0044] The following description will be made in conjunction with the accompanying drawings. Figures 1-9 The application is described in further detail.

[0045] The application discloses a paste filling machine.

[0046] Reference will be made to the drawings Figure 1 , Figure 2 The paste filling machine comprises a base 1, a hopper 2 arranged on the base 1, a cover 3 covering the hopper 2, a filling assembly 4 for filling paste into a container, and a cleaning assembly 5 for cleaning paste on the inner wall of the hopper 2, and the hopper 2 is provided with a containing cavity 21 with an upper opening. During filling, the paste is stored in the containing cavity 21, and the filling assembly 4 can fill the paste in the containing cavity 21 into the container; after filling is completed, the cleaning assembly 5 can scrape off the paste adhered to the inner wall of the hopper 2, and the cleaning efficiency is high.

[0047] Reference will be made to the drawings Figure 1The filling assembly 4 comprises an on-off valve 41 arranged below the hopper 2, a barrel 42 communicated with one side of the on-off valve 41, a filling cylinder 43 for pumping or pushing the paste into the barrel 42, and a injection head 44 for injecting the paste into the container. The on-off valve 41 can control the bottom opening of the hopper 2 to be opened or closed. The specific structure of the on-off valve 41 belongs to the prior art and is not described here. The piston rod of the filling cylinder 43 is arranged horizontally and fixedly connected with a plug (not shown in the figure). The plug is sealingly and slidingly arranged in the barrel 42. When the on-off valve 41 controls the bottom opening of the hopper 2 to be opened, if the plug is controlled to move to the side away from the on-off valve 41, the paste in the hopper 2 will be pumped into the barrel 42 under the action of air pressure. After the bottom opening of the hopper 2 is closed, if the plug is controlled to move to the side close to the on-off valve 41, the paste in the hopper 2 can be injected into the container along the injection head 44, so as to realize the filling of the paste.

[0048] With reference to Figure 2 , Figure 3 The cleaning assembly 5 comprises a cleaning rod 51, a mounting sleeve 52 threadedly connected to the cleaning rod 51, a plurality of telescopic rods 53 fixedly arranged on the circumferential side wall of the mounting sleeve 52, a scraper 54 detachably connected to the telescopic rods 53, and a power member 55 for driving the cleaning rod 51 to rotate circumferentially. In the embodiment, the power member 55 is preferably a servo motor with a positive and negative rotating output shaft. The housing of the servo motor is mounted on the material cover 3, and the output shaft penetrates through the material cover 3 and is fixedly connected with the cleaning rod 51.

[0049] With reference to Figure 3 , Figure 4 The telescopic rods 53 are arranged in two and circumferentially distributed along the central axis of the mounting sleeve 52. Each telescopic rod 53 comprises a fixed part 531, a movable part 532 located on the side of the fixed part 531 away from the mounting sleeve 52, a connecting part 533 slidingly arranged between the fixed part 531 and the movable part 532, and a telescopic spring 534 arranged between the connecting part 533 and the movable part 532. The fixed part 531 is fixedly connected to the mounting sleeve 52.

[0050] With reference to Figure 4The two sides of the connecting portion 533 along the length direction are respectively fixed with anti-disengagement portions 535, and the diameter of the anti-disengagement portion 535 is greater than that of the connecting portion 533. The anti-disengagement slots 536 horizontally extending are respectively arranged in the fixed portion 531 and the movable portion 532, the anti-disengagement portion 535 on one side of the connecting portion 533 is slidingly arranged in the anti-disengagement slot 536 of the fixed portion 531, and the anti-disengagement portion 535 on the other side of the connecting portion 533 is slidingly arranged in the anti-disengagement slot 536 of the movable portion 532. The connecting holes 537 are respectively arranged in the slot walls of the anti-disengagement slots 536 of the fixed portion 531 and the movable portion 532, the inner diameter of the connecting hole 537 is slightly greater than the diameter of the connecting portion 533 and less than the diameter of the anti-disengagement portion 535, and the connecting portion 533 is slidingly arranged in the connecting hole 537, so as to realize the sliding connection of the connecting portion 533 with the fixed portion 531 and the movable portion 532.

[0051] With reference to Figure 4 One end of the telescopic spring 534 abuts against the slot wall of the anti-disengagement slot 536 in the fixed portion 531, the other end abuts against the anti-disengagement portion 535, and the telescopic direction of the telescopic spring 534 is parallel to the moving direction of the connecting portion 533. In this embodiment, the telescopic spring 534 has a tendency to push the connecting portion 533 towards the movable portion 532, so that the scraper 54 can abut against the hopper 2 when the cleaning assembly 5 is installed in place, which is beneficial to improve the scraping effect of the scraper 54.

[0052] With reference to Figure 5 The scraper 54 comprises a base block 541 and a silica gel block 542 detachably connected to the base block 541, and the end of the silica gel block 542 away from the base block 541 is pointed. The base slot 543 horizontally extending and open upward is arranged on the base block 541, and the fastening slots 544 parallel to the extending direction of the base slot 543 are respectively arranged on the two opposite side slot walls of the base slot 543. The fastening blocks 545 are respectively integrally formed on the two opposite sides of the silica gel block 542 along the horizontal direction, and each fastening block 545 is respectively inserted into the fastening slot 544 adjacent thereto. When the scraper 54 is assembled, the silica gel block 542 is vertically embedded in the base slot 543, and the fastening blocks 545 are respectively embedded in the fastening slots 544 adjacent thereto, so as to realize the detachable connection of the base block 541 with the silica gel block 542. After being installed in place, the pointed end of the silica gel block 542 is located outside the base slot 543, and can contact with the side wall of the hopper 2, so as to scrape off the paste adhered to the hopper 2. In other embodiments, the silica gel block 542 can be connected to the base block 541 by means of bolt connection, clamping or magnetic attraction, etc., as long as the detachable connection of the two can be realized.

[0053] With reference to Figure 4In order to change the inclination angle of the scraper 54, the telescopic rod 53 is provided with a rotating part 56. The rotating part 56 comprises a rotating motor 561 and a rotating stud 562 fixedly connected to the output shaft of the rotating motor 561. The movable part 532 is provided with a let-in groove 538 on the side wall away from the fixed part 531, and the rotating motor 561 is fixedly embedded in the let-in groove 538. Specifically, the rotating motor 561 in the embodiment should adopt a micro motor whose output shaft can rotate in both directions. The fixed block 541 is provided with a rotating screw hole 546 on the side wall away from the silica gel block 542, and the rotating screw hole 546 is threadedly connected with the rotating stud 562, so as to realize the detachable connection of the scraper 54 and the telescopic rod 53. When the rotating motor 561 works, the rotating stud 562 will rotate synchronously with the output shaft of the rotating motor 561, and then drive the scraper 54 to rotate around the rotating stud 562, so as to realize the automatic adjustment of the inclination angle of the scraper 54. It should be noted that, in order to avoid the influence of the rotation of the scraper 54 due to the friction force between the scraper 54 and the hopper 2, the connection force between the scraper 54 and the rotating stud 562 in the embodiment should be greater than the friction force between the scraper 54 and the side wall of the hopper 2.

[0054] With reference to Figure 2 , Figure 3 In order to improve the working stability of the cleaning assembly 5, a support 22 is fixedly installed in the hopper 2, and the cleaning rod 51 is rotatably arranged in the support 22. Further, the bottom of the cleaning rod 51 is fixedly provided with a positioning disc 511, and the diameter of the positioning disc 511 is greater than the inner diameter of the through hole of the support 22 for the cleaning rod 51 to pass through.

[0055] With reference to Figure 3 The circumferential side wall of the cleaning rod 51 is fixedly provided with a movable ring 512, and the movable ring 512 is located below the mounting sleeve 52 and serves to assist in supporting the mounting sleeve 52, so as to prevent the mounting sleeve 52 from sliding along the cleaning rod 51 under the action of its own gravity. A rubber pad 513 is arranged between the movable ring 512 and the mounting sleeve 52, and the rubber pad 513 is sleeved on the outside of the cleaning rod 51 and serves to increase the friction force between the mounting sleeve 52 and the movable ring 512, so that the mounting sleeve 52 is less likely to rotate relative to the cleaning rod 51 during the working of the cleaning assembly 5.

[0056] With reference to Figure 2 , Figure 6 The inside of the side wall of the hopper 2 is provided with an annular water storage cavity 23, and the water storage cavity 23 is provided with a water inlet pipe 24 and a water outlet pipe 25 in communication. The water inlet pipe 24 is communicated with the top end of the water storage cavity 23, and the water outlet pipe 25 is communicated with the bottom end of the water storage cavity 23. When the paste is poured, hot water can be introduced into the water storage cavity 23 through the water inlet pipe 24, so that the temperature inside the hopper 2 is increased, thereby improving the fluidity of the paste in the hopper 2.

[0057] With reference to Figure 1 , Figure 6The material cover 3 is provided with a rinsing assembly 6. The rinsing assembly 6 includes an annular pipe 61 fixedly installed on the lower side of the material cover 3, a water inlet pipe 62 fixedly connected to the annular pipe 61, and a plurality of nozzles 63 spaced apart on the annular pipe 61. The water inlet pipe 62 is fixedly installed in the material cover 3 and its upper side is higher than the material cover 3. In this embodiment, there are multiple nozzles 63, and all of them are high-pressure nozzles 63. The water outlet direction of each nozzle 63 is set towards the inner wall of the hopper 2.

[0058] Reference Figure 1 , Figure 6 A water pump 11 is connected to the side of the water outlet pipe 25 away from the hopper 2. A flexible conduit 12 connects the water outlet of the water pump 11 to the water inlet pipe 62. When the water pump 11 is working, the water in the water storage chamber 23 is pumped out of the hopper 2 along the water outlet pipe 25, then flows through the flexible conduit 12 and the water inlet pipe 62 into the annular pipe 61, and finally is sprayed onto the side wall of the hopper 2 through the nozzle 63 to further rinse the paste adhering to the hopper 2. This design not only further improves the cleaning effect of the hopper 2, but also effectively utilizes the water in the water storage chamber 23, saving energy and protecting the environment.

[0059] Reference Figure 6 The hopper 2 is equipped with lifting components 7 for driving the material cover 3 to move vertically. In this embodiment, the lifting components 7 are preferably two sets, located on both sides of the hopper 2. Each set of lifting components 7 includes a lifting block 71 and a lifting cylinder 72 for driving the lifting block 71 to move vertically. The cylinder of the lifting cylinder 72 is fixed to the hopper 2, and the piston rod faces upward and is fixedly connected to the lifting block 71. The lifting block 71 is fixedly connected to the lower side of the material cover 3. When the piston rod of the lifting cylinder 72 extends or retracts, the lifting block 71 pushes the material cover 3 to move up and down, thereby increasing or decreasing the gap between the material cover 3 and the hopper 2. To improve the moving stability of the material cover 3, the lifting cylinders 72 in the two sets of lifting components 7 are preferably driven to move synchronously by the same control switch.

[0060] Reference Figure 2 , Figure 6 The lifting block 71 includes a pushing part 711 and a lifting part 712 fixed on the upper side of the pushing part 711. The pushing part 711 is fixed on the piston rod of the lifting cylinder 72, and the lifting part 712 is fixed on the material cover 3. The outer side wall of the hopper 2 is provided with two vertically extending sliding grooves 26, and the pushing part 711 of each lifting block 71 is slidably disposed in the adjacent sliding grooves 26.

[0061] Reference Figure 7 , Figure 8The hopper 2 is also equipped with limiting components 8 that are linked to the lifting component 7. The number of limiting components 8 is equal to that of the lifting component 7 and they correspond one-to-one. Each set of limiting components 8 includes a connecting rod 81, two through rods 82 fixed on the side of the connecting rod 81 facing the receiving cavity 21, a limiting block 83 fixed on the side of the through rod 82 away from the connecting rod 81, and a return spring 84 sleeved on the outside of the through rod 82. Two horizontally extending connecting grooves 27 are provided on the side wall of the hopper 2. Each connecting rod 81 is horizontally slidably arranged in the adjacent connecting grooves 27, and the end of the connecting rod 81 away from the through rod 82 is provided with a guide slope 811, which is set to face downwards.

[0062] Reference Figure 7 , Figure 9 The inner wall of the hopper 2 is provided with limiting grooves 28, which are equal in number and correspond one-to-one with the limiting blocks 83. Each limiting block 83 is slidably disposed in an adjacent limiting groove 28. The horizontal distance between two limiting blocks 83 in the same limiting member 8 is not less than the length of the scraper 54, and preferably greater than that in this embodiment. One end of the return spring 84 abuts against the connecting rod 81, and the other end abuts against the bottom wall of the connecting groove 27. When the return spring 84 is in its natural state, the limiting block 83 is located inside the side wall of the hopper 2, that is, the return spring 84 has the tendency to drive the limiting block 83 to be housed in the limiting groove 28, so as to prevent the limiting block 83 from affecting the rotation of the scraper 54. When the lifting cylinder 72 drives the lifting block 71 to move upward, the pushing part 711 will contact the guide inclined surface 811 to push the limiting block 83 into the receiving cavity 21, thereby using the limiting block 83 to restrict the rotation of the scraper 54 located between the two.

[0063] Reference Figure 2 , Figure 9 To control the rotation range of the scraper 54, two stop blocks 29 are evenly distributed circumferentially on the inner wall of the hopper 2. When the scraper 54 rotates to abut against the stop block 29, the rotating stud 562 is exactly located on the vertical line of the horizontal line connecting the two limit blocks 83 in the adjacent limit member 8. After the scraper 54 is driven to a horizontal position by the rotating member 56, the lifting member 7 drives the lifting block 71 to move upward, so that the limit block 83 moves into the receiving cavity 21. At this time, if the cleaning rod 51 is controlled to rotate, the scraper 54 will move vertically relative to the cleaning rod 51 due to the action of the limit block 83, so that the scraper 54 can be removed and cleaned separately.

[0064] The implementation principle of a paste filling machine according to an embodiment of this application is as follows: During normal paste filling, the material cover 3 is in the state of closing the upper opening of the hopper 2, and the limiting block 83 is located inside the hopper 2. When paste adheres to the inner wall of the hopper 2 and needs to be cleaned, after the power component 55 is turned on, the cleaning rod 51 will drive the mounting sleeve 52, the telescopic rod 53 and the scraper 54 to rotate horizontally, thereby using the scraper 54 to scrape off the paste on the side wall of the hopper 2, so as to achieve the cleaning of the side wall of the hopper 2.

[0065] When the residual paste on the scraper 54 is cleaned, the scraper 54 is first rotated to abut against the adjacent stop block 29, so that the scraper 54 is on the median line of the two limiting blocks 83 of the adjacent limiting member 8, and then the scraper 54 is rotated to the horizontal position by the rotating member 56; then the cover 3 is lifted by the lifting member 7, and the connecting rod 81 is pushed into the accommodating cavity 21 by the upward movement of the jacking block 71, so that the limiting block 83 is moved into the accommodating cavity 21 to limit the horizontal rotation of the scraper 54. Then the driving force member 55 is started, and the scraper 54 cannot be horizontally rotated due to the action of the limiting block 83, so that the scraper 54 is moved upward relative to the cleaning rod 51 to the position between the cover 3 and the hopper 2 during the rotation of the cleaning rod 51, and is moved to the side away from the cleaning rod 51 under the action of the telescopic spring 534. At this time, the operator can separate the scraper 54 from the telescopic rod 53, so as to take out the scraper 54 for separate cleaning, and the cover 3 does not need to be removed during the cleaning, so that the operation is convenient.

[0066] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A paste filling machine, comprising a machine base (1), a hopper (2) arranged on the machine base (1), a hopper cover (3) covering the hopper (2), a filling assembly (4) for filling a container with paste in the hopper (2), and a cleaning assembly (5) for cleaning the paste on the inner wall of the hopper (2), wherein the hopper (2) is provided with a containing cavity (21) for storing the paste, characterized in that: The cleaning assembly (5) comprises a cleaning rod (51), a mounting sleeve (52) threadedly connected to the cleaning rod (51), a plurality of telescopic rods (53) arranged on the mounting sleeve (52), a scraper (54) detachably connected to the telescopic rods (53), and a power member (55) for driving the cleaning rod (51) to rotate circumferentially, the scraper (54) abutting against the inner wall of the hopper (2); the telescopic rods (53) are provided with a rotating member (56) for driving the scraper (54) to rotate to a horizontal state, the hopper (2) is provided with a lifting member (7) for driving the cover (3) to move vertically, and a limiting member (8) linked with the lifting member (7), the limiting member (8) can move into the accommodating cavity (21) when the lifting member (7) drives the cover (3) to rise, so as to limit the horizontal rotation of the scraper (54); the lifting member (7) comprises a jacking block (71) arranged below the cover (3), and a lifting cylinder (72) for driving the jacking block (71) to move vertically; the limiting member (8) comprises a connecting rod (81) horizontally slidingly arranged in the hopper (2), two penetrating rods (82) fixed to one side of the connecting rod (81) facing the accommodating cavity (21), and limiting blocks (83) fixed to the penetrating rods (82) away from the connecting rod (81), the horizontal distance between the two limiting blocks (83) is not less than the length of the scraper (54), and one end of the connecting rod (81) away from the penetrating rods (82) is provided with a guide inclined surface (811), when the lifting cylinder (72) drives the jacking block (71) to move upward, the jacking block (71) will contact the guide inclined surface (811) and push the limiting blocks (83) into the accommodating cavity (21).

2. The cream filler according to claim 1, characterized in that: The limiting member (8) further comprises a reset spring (84) sleeved outside the penetrating rods (82), one end of the reset spring (84) abutting against the connecting rod (81) and the other end abutting against the hopper (2), when the reset spring (84) is in a natural state, the limiting blocks (83) are located inside the side wall of the hopper (2).

3. The cream filler of claim 1, wherein: The rotating member (56) comprises a rotating motor (561) fixedly embedded in the telescopic rod (53), and a rotating stud (562) arranged on the output shaft of the rotating motor (561), the scraper (54) is provided with a rotating screw hole (546) threadedly matched with the rotating stud (562).

4. The cream filler machine of claim 3, wherein: The inner wall of the hopper (2) is fixed with a stop block (29), when the scraper (54) rotates to abut against the stop block (29), the rotating stud (562) is located on the perpendicular bisector of the horizontal line connecting the two limiting blocks (83).

5. The cream filler of claim 3, wherein: The scraper (54) comprises a base block (541) connected with a rotating stud (562), and a silica gel block (542) detachably connected to the base block (541), and the silica gel block (542) is pointed at an end away from the base block (541); a vertical base groove (543) is formed in the base block (541), and fastening grooves (544) are formed in opposite groove walls of the base groove (543) respectively, and the silica gel block (542) is vertically embedded in the base groove (543), and fastening blocks (545) are integrally formed on opposite sides of the silica gel block (542) respectively, and the fastening blocks (545) are inserted and matched with the fastening grooves (544).

6. The paste filling machine of claim 1, wherein: The telescopic rod (53) comprises a fixed part (531) fixedly connected to the mounting sleeve (52), a movable part (532) located at one side of the fixed part (531) away from the mounting sleeve (52), a connecting part (533) horizontally slidingly arranged between the fixed part (531) and the movable part (532), and a telescopic spring (534) for pushing the connecting part (533) towards the movable part (532), and the telescopic direction of the telescopic spring (534) is parallel to the moving direction of the connecting part (533).

7. The cream filler according to claim 6, characterized in that: The connecting part (533) is fixed with anti-disengagement parts (535) on both sides in the horizontal direction respectively, anti-disengagement grooves (536) for slidingly arranging the adjacent anti-disengagement parts (535) are formed in the fixed part (531) and the movable part (532) respectively, connecting holes (537) for slidingly arranging the connecting part (533) are formed in groove walls of the anti-disengagement grooves (536), and the inner diameter of the connecting hole (537) is smaller than the diameter of the anti-disengagement part (535).

8. The paste filling machine of claim 1, wherein: The circumferential side wall of the cleaning rod (51) is fixed with a movable ring (512) located at the lower side of the mounting sleeve (52), and a rubber pad (513) is arranged between the movable ring (512) and the mounting sleeve (52).

9. The paste filling machine of claim 1, wherein: The sidewall of the hopper (2) is provided with an annular water storage cavity (23), the water storage cavity (23) is communicated with a water inlet pipe (24) and a water outlet pipe (25), the water outlet pipe (25) is connected with a water pump (11) at a side away from the hopper (2), the cover (3) is provided with a flushing assembly (6), the flushing assembly (6) comprises an annular pipe (61) arranged at the lower side of the cover (3), a water guide pipe (62) fixedly connected to the annular pipe (61), and a plurality of spray heads (63) arranged at intervals on the annular pipe (61), the water outlet direction of the spray head (63) is arranged towards the inner wall of the hopper (2), and a lead-through hose (12) is connected between the water outlet end of the water pump (11) and the water guide pipe (62).

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