Quantitative feeding device for plastic building template production
By designing a quantitative feeding device for the production of plastic building formwork, using technical means such as timers, height control structures and top materials, the problem of uneven proportion of raw material components during the preparation of plastic sheets is solved, and uniform molding and easy operation of the sheets are achieved.
Patent Information
- Application Number
- CN202420600132.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-03-26
AI Technical Summary
During the preparation of plastic sheets, workers poured the raw materials directly into the whole bag, resulting in too large proportion of components in the first half and too small proportion of components in the second half, resulting in poor uniformity of the molded sheets.
A quantitative feeding device for the production of plastic building formwork is designed, including a filling hopper, a screw feeding machine, a mixing box and a graded feeding mechanism. The output of the screw loader is controlled by a timer, the height control structure drives the load hopper downward and reset, and the top material piece drives the inclination of the container cavity, so that the proportion of the components of the raw material particles is even.
It effectively solves the problem of uneven proportion of raw material components during the molding of plastic sheets, improves the uniformity of the sheets, reduces the number of times workers are discharged, and lowers the operating threshold.
Smart Images
Figure CN222875001U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to plastic template processing equipment, in particular to a quantitative feeding device for producing plastic building templates. Background Art
[0002] Plastic sheet is a sheet made of plastic as raw material. It is not a pure substance, but a mixture of many materials. Among them, high molecular polymer (or synthetic resin) is the main component of plastic. In addition, in order to improve the performance of plastic, various auxiliary materials such as fillers, plasticizers, lubricants, stabilizers, colorants, etc. must be added to the polymer to become a plastic with good performance.
[0003] In the preparation stage of plastic sheets, the raw materials need to be added together and mixed evenly. After quantitative feeding, the corresponding shape of the plastic sheet is obtained by melt extrusion. In this process, the uniformity of the mixture directly determines whether each area of the sheet meets the standards after forming. Users have found the following problems in the production of plastic sheets: In the process of feeding, since workers directly pour the whole bag, it is easy to cause the feed in the first half to be one component and the feed in the second half to be all another component. Even after simple stirring, the proportion of the components in the first half is still much greater than that in the second half during the quantitative feeding stage, resulting in poor uniformity of the formed sheet and some areas not meeting the inspection requirements. Utility Model Content
[0004] The utility model provides a quantitative feeding device for the production of plastic building templates. In the initial stage of plate preparation, raw material particles of different materials and different particle sizes are uniformly fed and mixed, so that when a given amount of feeding is supplied, the proportions of various components of the raw material particles are uniform and the uniformity of particle size is good, which can effectively solve the above-mentioned problems.
[0005] The utility model is achieved in this way:
[0006] A quantitative feeding device for producing plastic building templates, comprising a filling hopper for loading raw material particles, the bottom of the filling hopper is connected to a screw feeder, the screw feeder is arranged in a mixing box, and a mixing structure is arranged on the side of the mixing box, and the quantitative feeding device also includes:
[0007] The grading unloading mechanism comprises a timer provided at the discharge port of the screw feeder, and the grading unloading mechanism comprises a movable component arranged on the top of the mixing box, the top of the movable component is fixedly connected with a material holding chamber, the side wall of the material holding chamber is provided with a height control structure, the inner side of the height control structure is provided with a loading hopper which can move up and down along the inner wall of the material holding chamber, an extension seat is arranged above the movable component, the top of the extension seat is locked with a gantry, and a lifting piece is hingedly installed on the gantry. When the timer detects that the screw feeder has input a corresponding amount of the first raw material, the height control structure is driven to lower the loading hopper to be flush with the discharge port of the screw feeder, and the first raw material is input into the loading hopper and the material holding chamber. After the first raw material is fully fed, the second raw material is input through the screw feeder. When the first raw material needs to be supplemented, the movable component is driven away from the screw feeder, so that the lifting piece drives the material holding chamber to flip sideways and gradually move the loading hopper upward.
[0008] As a further improvement, the movable component includes a guide rail locked on the top of the mixing box, and an active sliding seat and a driven sliding seat are slidably installed on the guide rail. The active sliding seat is connected to one side of the bottom of the material holding chamber by a hinge, and the driven sliding seat is connected to the other side of the bottom of the material holding chamber by a straight rod. When the top material piece moves upward, the driven sliding seat disengages from the guide rail, and the material holding chamber tilts downward.
[0009] As a further improvement, the height control structure includes an adjusting motor arranged on the outside of the material holding chamber, a straight groove is opened on the outside of the material holding chamber, a linkage rod is fixedly connected to the adjusting motor, one end of the linkage rod is sleeved on the output end of the adjusting motor, and the other end of the linkage rod passes through the straight groove and is connected to the loading hopper.
[0010] As a further improvement, a sealing baffle is provided on one side of the loading hopper close to the spiral feeder, and the height of the sealing baffle is higher than the edge of the loading hopper.
[0011] As a further improvement, the distance between the sealing baffle and the inner side wall of the top surface of the material holding chamber is 12 to 25 cm.
[0012] As a further improvement, the lifting member includes a first connecting seat locked to the top of the material holding chamber, a second connecting seat locked to the bottom of the gantry, and an adjusting member is arranged between the first connecting seat and the second connecting seat, and the adjusting member tilts the material holding chamber and the loading hopper when retracted.
[0013] The beneficial effects of the utility model are:
[0014] In a conventional feeding mechanism for plastic particles, one material is often transported to the mixing box first and then the other material is transported to mix the two materials evenly. However, this causes a large amount of the first-stage input material to sink to the bottom. Although it will be stirred, the material ratio of the first-half input will still be higher than the set amount. If workers are asked to feed the materials step by step, it will be more troublesome. In this regard, the utility model adds a graded feeding mechanism, which can drive the height control structure to move the loading hopper down to the position of the spiral feeder after the first-stage raw material particles are input for a preset amount of time, and store half of the first-stage particles. After the grains are filled, the loading hopper is reset, and then the worker can directly load the second section of material. After half of the second section of material is loaded, the above operation is repeated. At this time, half of the first section of material and half of the second section of material exist in the mixing box. After a period of stirring, the top material is retracted to tilt the entire loading hopper, so that the loading hopper pushes open the gate that binds it and then slides down into the mixing box. This can not only avoid the phenomenon of sinking to the bottom of the material when it is unloaded all at once, and prevent the proportion of different materials in the quantitative unloading stage from being too different, but also reduce the number of times workers unload materials and lower the operating threshold for workers. Even workers with a short period of time can easily operate the equipment.
[0015] When the loading hopper is not in use, it cannot interfere with the normal operation of the spiral feeder. Therefore, the utility model sets a height control structure on the outer side of the material holding chamber. When the loading hopper is not in use, the loading hopper is pulled up by adjusting the motor through the linkage rod to the specified position, that is, it stops after not interfering with the position of the spiral feeder, so that it can be moved as needed.
[0016] After half of the first-stage material and half of the second-stage material are stored in the mixing box and mixed for a period of time, the other half of the first-stage material and half of the second-stage material need to be introduced from the material storage chamber into the mixing box. Therefore, the utility model adds a lifting member, and both ends of the lifting member are arranged as hinged connecting seats, so as to adapt to the position change and angle change of the material storage chamber. When the material storage chamber needs to be unloaded, the material storage chamber can be tilted by retracting the adjustment member, so that the particles in the material storage chamber can be poured down into the mixing box.
[0017] However, when the material lifting piece tilts the material containing chamber, the loading hopper is prone to collide with the screw feeder. Therefore, the utility model provides a movable component based on the material lifting piece, the loading hopper and the material containing chamber. The movable component can drive the loading hopper and the material containing chamber to make a certain displacement in the horizontal direction, thereby avoiding the position that interferes with the screw feeder. At the same time, because of the hinge and the driven sliding seat provided, it does not affect the rotation of the material lifting piece. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 The utility model is a three-dimensional structural schematic diagram of a construction plastic plate manufacturing device.
[0020] Figure 2 The utility model is a front view structural schematic diagram of a construction plastic plate manufacturing device.
[0021] Figure 3 The utility model is a schematic diagram of the top view of a construction plastic plate manufacturing device.
[0022] Figure 4 This utility model Figure 3 Cross-section view at AA in the middle.
[0023] Figure 5 The utility model is a structural schematic diagram of a graded material discharging mechanism.
[0024] Figure 6 It is a structural schematic diagram of the cooperation between a stirring box and a planar particle size switching mechanism of the utility model.
[0025] Figure 7 It is a structural schematic diagram of a planar particle size switching mechanism of the utility model.
[0026] Figure 8 This utility model Figure 7 Top view of the .
[0027] Fig. 9 This utility model Figure 8 Cross-section view at the middle BB. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0029] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0030] Reference Figures 1 to 9As shown, a quantitative feeding device for the production of plastic building templates includes a filling hopper 10 for loading raw material particles, the bottom of the filling hopper 10 is connected to a screw feeder 20, the screw feeder 20 is arranged in a mixing box 30, and a mixing structure 40 is arranged on the side of the mixing box 30. The quantitative feeding device also includes: a graded feeding mechanism 50, the discharge port of the screw feeder 20 is provided with a timer, and the graded feeding mechanism 50 includes a movable component 501 arranged on the top of the mixing box 30. The top of the movable component 501 is fixedly connected to a material holding chamber 51, and a height control structure 52 is arranged on the side wall of the material holding chamber 51. A loading hopper 53 that can move up and down along the inner wall of the material holding chamber 51 is arranged on the inner side of the height control structure 52. An extension seat 54 is arranged above the movable component 501, and a gantry 55 is locked to the top of the extension seat 54. A material ejecting member 56 is hingedly installed on the gantry 55. When the timer detects that the screw feeder 20 has input a corresponding amount of the first raw material, the height control structure 54 is driven to move. 2 The loading hopper 53 is lowered to be flush with the discharge port of the screw feeder 20, and the first raw material is input into the loading hopper 53 and the material chamber 51. After the first raw material is fully fed, the second raw material is input through the screw feeder 20. When the first raw material needs to be replenished, the movable component 501 is driven away from the screw feeder 20, so that the lifting member 56 drives the material chamber 51 to turn sideways and gradually move the loading hopper 53 upward; the plane particle size switching mechanism 60, the interior of the mixing box 30 is provided with an arc filter 31, and the arc filter 31 is provided with a A plurality of filter holes, the planar particle size switching mechanism 60 includes a leveling structure 61 arranged below the arc filter 31, the leveling structure 61 includes a leveling shaft 611 flush with the top surface of the filter hole, a compensating member 612 is slidably sleeved on the leveling shaft 611, the compensating member 612 is connected to a driving structure 62, when the driving structure 62 is enabled, the compensating member 612 is pushed up to be flush with the leveling shaft 611, thereby reducing the diameter of the filter hole, and when the driving structure 62 is closed, the compensating member 612 slides down and increases the diameter of the filter hole.
[0031] In this embodiment, the stirring structure 40 is a rotating shaft with an arc-shaped rotating plate. The arc-shaped rotating handle stirs the particles to rotate and mix when rotating. The particulate matter consists of two parts: synthetic resin and filler. For ease of understanding, the synthetic resin is the feed material of the first section, and the filler is the feed material of the second section.
[0032] The timer at the discharge port of the screw feeder 20 will start timing during the feeding stage of the screw feeder 20. Since the output power of the screw feeder 20 is fixed, the feeding amount is also fixed, so the feeding amount can be calculated by its working time, so that the graded unloading mechanism 50 is started after a part of the first-stage feeding material is loaded. The specific feeding amount can be set, for example, after half of the first-stage material has entered, or after one-third has entered. The control principle of the timer is existing technology and will not be repeated here.
[0033] In a conventional feeding mechanism for plastic particles, one material is often transported to the mixing box first and then the other material is transported to mix the two materials evenly. However, this causes a large amount of the first-stage input material to sink to the bottom. Although it will be stirred, the material ratio of the first half will still be higher than the set amount. If workers are asked to feed the materials in steps, it will be more troublesome. In this regard, the utility model adds a graded feeding mechanism 50, which can allow the height control structure 52 to drive the loading hopper 53 to move down to the position of the spiral feeder 20 after the first stage of raw material particles are input for a preset amount of time. After storing half of the first stage of particles, the loading hopper 53 is reset, and then the worker can directly feed the second stage of materials. After half of the second stage of materials are fed, the loading hopper 53 is reloaded. Repeat the above operation. At this time, half of the first section material and half of the second section material exist in the mixing box 30. After stirring for a period of time, the lifting member 56 is retracted to tilt the entire loading hopper 53, so that the loading hopper 53 pushes open the gate plate that restrains it and then slides down into the mixing box 30. This can not only avoid the phenomenon of sinking to the bottom of the material when it is fed all at once, but also prevent the large difference in the proportion of different materials in the quantitative feeding stage. At the same time, it can reduce the number of times workers feed materials and lower the operating threshold of workers. Even workers with a short hands-on time can easily operate the equipment. The specific mixing time can also be set according to the set feeding amount. For example, when feeding half of the material, it needs to be stirred for 45 to 60 minutes, and when feeding one-third of the material, it only needs to be stirred for 25 to 30 minutes.
[0034] When the loading hopper 53 is not in use, it cannot interfere with the normal operation of the screw feeder 20. Therefore, the utility model sets a height control structure 52 at the outer side of the material storage chamber 51, and the height control structure 52 includes an adjusting motor 521 arranged on the outer side of the material storage chamber 51. A straight groove is opened on the outer side of the material storage chamber 51, and a linkage rod 522 is fixedly connected to the adjusting motor 521. One end of the linkage rod 522 is sleeved on the output end of the adjusting motor 521, and the other end of the linkage rod 522 passes through the straight groove and is connected to the loading hopper 53. When the loading hopper 53 is not in use, the loading hopper 53 is pulled up by the adjusting motor 521 via the linkage rod 522 and pulled to a specified position, that is, it stops after not interfering with the position of the screw feeder 20, so that it can be moved as needed.
[0035] After half of the first-stage material and half of the second-stage material are stored in the mixing box 30 and mixed for a period of time, it is necessary to introduce the other half of the first-stage material and half of the second-stage material from the material storage chamber 51 into the mixing box 30. Therefore, the utility model adds a material lifting member 56, and the material lifting member 56 includes a first connecting seat 561 locked to the top of the material storage chamber 51, and a second connecting seat 562 locked to the bottom of the gantry 55. A direction adjusting member 563 is arranged between the first connecting seat 561 and the second connecting seat 562. When the direction adjusting member 563 is retracted, the material storage chamber 51 is moved to the mixing box 30. As well as the tilting of the loading hopper 53, both ends of the lifting member 56 are arranged as hinged connecting seats, so as to be able to adapt to the position change and angle change of the material chamber 51. When the material chamber 51 needs to unload materials, the material chamber 51 can be tilted by retracting the adjusting member 563, so that the particles in the material chamber 51 pour down into the mixing box 30, wherein the material chamber 51 is provided with a gate plate (not shown in the figure) away from the screw feeder 20, and the gate plate and the material chamber 51 are in a hinged state, which closes the material chamber 51 under normal conditions, and will be pushed open by the descending particles after the material chamber 51 is tilted.
[0036] In order to prevent the particles from leaking out after being input into the loading hopper 53 by the screw feeder 20, a sealing baffle 531 is provided on the side of the loading hopper 53 close to the screw feeder 20. The height of the sealing baffle 531 is higher than the edge of the loading hopper 53, so that the particles can be tightly confined inside the loading hopper 53. Preferably, the distance between the sealing baffle 531 and the inner side wall of the top surface of the material holding chamber 51 is 12 to 25 cm, with a certain degree of flexibility to avoid completely closing the feed opening.
[0037] However, when the material lifting member 56 tilts the material storage chamber 51, the material loading hopper 53 is likely to collide with the screw feeder 20. Therefore, the present invention further provides a movable assembly 501 on the basis of the material lifting member 56, the material loading hopper 53, and the material storage chamber 51. The movable assembly 501 includes a guide rail 5011 locked on the top of the mixing box 30, and an active sliding seat 5012 and a driven sliding seat 5013 are slidably mounted on the guide rail 5011. The active sliding seat 5012 is connected to one side of the bottom of the material storage chamber 51 through a hinge 5014, and the driven sliding seat 5013 is connected to the other side of the bottom of the material storage chamber 51 through a straight rod 5015. On the other hand, when the material lifting member 56 moves upward, the driven sliding seat 5013 disengages from the guide rail 5011, and the material containing chamber 51 tilts downward. The movable component 501 can drive the loading hopper 53 and the material containing chamber 51 to make a certain displacement in the horizontal direction, thereby avoiding the position that interferes with the spiral feeder 20. At the same time, because of the hinge 5014 and the driven sliding seat 5013, the rotation of the material lifting member 56 is not affected. The driven sliding seat 5013 is only attached to the guide rail 5011 and driven. Therefore, when the loading hopper 53 and the material containing chamber 51 rotate along the hinge 5014, the driven sliding seat 5013 can be disengaged from the guide rail 5011.
[0038] During the stirring stage, since the size of the raw material particles has not been screened, the large and small particles are mixed together, which can easily cause very small particles to be melted all at once, while large particles need to be melted continuously, and often the melting period needs to be controlled to the longest time period to avoid uneven melting, which greatly delays the processing. Therefore, the utility model is provided with a planar particle size switching mechanism 60 on the basis of the graded feeding mechanism 50. In the initial stage, the leveling shaft 611 and the compensating member 612 are both in the pushed-out state. At this time, the filter hole is small, allowing small particles to fall, so that the small particles in the raw material particles are separated first. This batch of separated particles has a large particle size. The size of the raw materials is relatively small, so a short-time processing method can be used to increase the processing speed during melting. After continuous stirring and no small particles of raw materials are left, the compensation member 612 is lowered to enlarge the aperture of the filter hole, thereby separating raw materials of other particle sizes. By separating particles of different sizes, not only the overall processing speed is improved, but also the phenomenon of uneven melting can be avoided. Compared with the existing double-layer mesh plate to control the discharge of particles, the leveling shaft 611 and the compensation member 612 will not hinder the normal rotation of the stirring structure 40, and there is no stratification phenomenon. It is not easy for the stirring structure 40 to shear the particles, and the appearance of broken powder can be avoided while mixing.
[0039] Specifically, the compensation member 612 includes a hollow sleeve 6121 fixed to the bottom of the mixing box 30, and a compensation sleeve 6122 is slidably installed on the inner side of the hollow sleeve 6121. The compensation sleeve 6122 is movably fitted on the outer side of the leveling shaft 611. When the driving structure 62 applies pressure to the hollow sleeve 6121, the compensation sleeve 6122 is lifted up to be flush with the leveling shaft 611. In this embodiment, the leveling shaft 611 is completely fixed, and the aperture of the filter hole is adjusted only by moving the compensation sleeve 6122 up and down. In other embodiments, the position of the leveling shaft 611 can also be adjusted to achieve the effect of adjusting a variety of particle sizes.
[0040] It should be noted that the mixing in this embodiment is only applicable to the mixing of solid particles, and is not applicable to an environment with liquids, otherwise the liquids will directly leak out from the filter holes, which is not conducive to mixing and stirring.
[0041] In order to prevent the leveling shaft 611 and the compensation piece 612 from squeezing the particles and the stirring structure 40 when they are at the filter hole position, thereby causing a large number of particles to be excessively sheared and wasted, the leveling shaft 611 and the compensation sleeve 6122 of the utility model are both concave arc structures, which are flush with the bending angle of the entire arc filter 31. The particles either fall directly along the filter holes or continue to be carried away by the stirring structure 40 and will not be crushed between the planar particle size switching mechanism 60 and the stirring structure 40.
[0042] In order to facilitate unified control, the driving structure 62 includes a hydraulic system for oil supply, and the hydraulic system is connected to the hollow sleeve 6121 through a plurality of conduits 621. Since the positions of the leveling shaft 611 and the compensation member 612 are different, the lengths of the conduits 621 are actually different, thereby ensuring that the movement accuracy of the hollow sleeve 6121 meets the requirements.
[0043] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A quantitative feeding device for the production of plastic building templates, characterized in that: The invention comprises a filling hopper (10) for loading raw material particles, the bottom of the filling hopper (10) is connected to a screw feeder (20), the screw feeder (20) is arranged in a mixing box (30), and a mixing structure (40) is arranged on the side of the mixing box (30), and the quantitative feeding device also comprises: A graded material discharge mechanism (50), wherein the discharge port of the spiral feeder (20) is provided with a timer, and the graded material discharge mechanism (50) comprises a movable component (501) arranged on the top of the mixing box (30), the top of the movable component (501) is fixedly connected to a material storage chamber (51), a height control structure (52) is arranged on the side wall of the material storage chamber (51), and a loading hopper (53) that can move up and down along the inner wall of the material storage chamber (51) is arranged on the inner side of the height control structure (52), an extension seat (54) is arranged above the movable component (501), and a gantry (55) is locked to the top of the extension seat (54), A material ejecting member (56) is hingedly mounted on the gantry (55). When the timer detects that the screw loader (20) has input a corresponding amount of the first raw material, the height control structure (52) is driven to lower the loading hopper (53) to be flush with the discharge port of the screw loader (20), and the first raw material is input into the loading hopper (53) and the material holding chamber (51). After the first raw material is fully fed, the second raw material is input through the screw loader (20). When the first raw material needs to be replenished, the movable component (501) is driven away from the screw loader (20), so that the material ejecting member (56) drives the material holding chamber (51) to tip over and gradually move the loading hopper (53) upward.
2. A quantitative feeding device for producing plastic building templates according to claim 1, characterized in that: The movable component (501) includes a guide rail (5011) locked on the top of the mixing box (30), and an active sliding seat (5012) and a driven sliding seat (5013) are slidably mounted on the guide rail (5011). The active sliding seat (5012) is connected to one side of the bottom of the material holding chamber (51) through a hinge (5014), and the driven sliding seat (5013) is connected to the other side of the bottom of the material holding chamber (51) through a straight rod (5015). When the lifting member (56) moves upward, the driven sliding seat (5013) is disengaged from the guide rail (5011), and the material holding chamber (51) tilts downward.
3. A quantitative feeding device for producing plastic building templates according to claim 1, characterized in that: The height control structure (52) includes an adjusting motor (521) arranged on the outside of the material holding chamber (51), and a straight groove is opened on the outside of the material holding chamber (51). A linkage rod (522) is fixedly connected to the adjusting motor (521), and one end of the linkage rod (522) is sleeved on the output end of the adjusting motor (521), and the other end of the linkage rod (522) passes through the straight groove and is connected to the loading hopper (53).
4. A quantitative feeding device for producing plastic building templates according to claim 3, characterized in that: A sealing baffle (531) is provided on one side of the material loading hopper (53) close to the spiral feeder (20), and the height of the sealing baffle (531) is higher than the edge of the material loading hopper (53).
5. A quantitative feeding device for producing plastic building templates according to claim 4, characterized in that: The distance between the sealing baffle (531) and the inner side wall of the top surface of the material holding chamber (51) is 12 to 25 cm.
6. A quantitative feeding device for producing plastic building templates according to claim 1, characterized in that: The material lifting member (56) comprises a first connecting seat (561) locked to the top of the material holding chamber (51), and a second connecting seat (562) locked to the bottom of the gantry (55); a direction adjusting member (563) is arranged between the first connecting seat (561) and the second connecting seat (562); when the direction adjusting member (563) is retracted, the material holding chamber (51) and the loading hopper (53) are tilted.