An exchanger and casing preparation apparatus for constant pressure feeding

Abstract

The present application relates to the technical field of casing preparation, and particularly relates to an exchanger for constant-pressure feeding and a casing preparation device. The exchanger comprises an exchanger body, a one-way valve and a control member. The exchanger body comprises a discharge channel and feeding channels, a reverse pushing channel and a control channel symmetrically arranged on both sides of the discharge channel. The feeding channels and the reverse pushing channel are both in communication with the discharge channel, and the one-way valve is arranged in the feeding channel. The control member is located on both sides of the discharge channel and comprises a control end, a pushing plate and a reverse pushing end in sequence. The longitudinal section of the control end is larger than that of the reverse pushing end. The control end is located in the control channel, and the control channel is in communication with the feeding channel. The reverse pushing end is located in the reverse pushing channel, and one end of the pushing plate is out of the exchanger body. The present application solves the problems of uneven discharge, bulging casing diameter and thin waist caused by unstable pressure when the extrusion cylinder is alternated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of casing preparation, and particularly relates to an exchanger for constant-pressure feeding and a casing preparation device. BACKGROUND

[0002] Collagen casing is a kind of edible artificial casing, which is made of animal leather such as cow two-layer skin or sheepskin.

[0003] In the production process of collagen casing, the extrusion equipment is provided with two plunger extrusion cylinders to realize continuous feeding. However, when the two extrusion cylinders are alternated, the pressure is too high or too low for a short time, which leads to uneven discharging of the forming machine, and further leads to the drum or thin waist of the casing diameter, and seriously affects the product quality. SUMMARY

[0004] In view of the problems in the prior art, the embodiment of the present application aims to provide an exchanger for constant-pressure feeding, so as to solve the problems of uneven discharging caused by unstable pressure when the extrusion cylinders are alternated, and the problems of drum or thin waist of the casing diameter.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical scheme:

[0006] An exchanger for constant-pressure feeding, comprising: an exchanger body, a one-way valve and a control member; the exchanger body comprises a discharging channel and feeding channels, a reverse pushing channel and a control channel symmetrically arranged on both sides of the discharging channel, the feeding channels and the reverse pushing channel are in communication with the discharging channel, and the one-way valve is arranged in the feeding channel; the control member is located on both sides of the discharging channel and comprises a control end, a push plate and a reverse pushing end in sequence, the longitudinal section of the control end is larger than that of the reverse pushing end, the control end is located in the control channel, the control channel is in communication with the feeding channel, the reverse pushing end is located in the reverse pushing channel, and one end of the push plate protrudes out of the exchanger body.

[0007] Optionally, the exchanger body comprises a feeding block and a discharging block, the feeding block is symmetrically arranged at both ends of the discharging block, the feeding block and the discharging block are detachably connected, and the discharging channel is arranged in the discharging block.

[0008] Optionally, a first feeding channel is arranged on the feeding block, a second feeding channel is arranged on the discharging block, the second feeding channel is in communication with the discharging channel, the first feeding channel and the second feeding channel are coaxially arranged, and the first feeding channel and the second feeding channel constitute the feeding channel.

[0009] Optionally, the one-way valve is arranged in the second feeding channel, or the one-way valve is arranged in the first feeding channel.

[0010] Optionally, the one-way valve comprises a valve sleeve, a sliding frame and a valve core, the sliding frame and the valve core are fixedly connected, the sliding frame is slidingly installed in the valve sleeve, the valve core has a frustum, and a tapered surface of the frustum can abut against an end of the valve sleeve to cut off the material flow.

[0011] Optionally, the control channel is arranged in the feeding block, and the back-pushing channel is arranged in the discharging block.

[0012] Optionally, an end of the feeding block away from the discharging block is provided with a feeding cavity, and the outer end of the feeding channel and the outer end of the control channel are both in communication with the feeding cavity.

[0013] Optionally, an end of the feeding block towards the discharging block is provided with a groove, the control end and the back-pushing end of the control member are both circular shafts, the diameter of the control end is greater than the diameter of the back-pushing end, the push plate is located between the control end and the back-pushing end, the shaft lines of the control end and the back-pushing end are perpendicular to the push plate, the push plate is located in the groove of the feeding block, and the width of the groove along the direction of the shaft line of the control end is greater than the thickness of the push plate.

[0014] Optionally, a pressure gauge is arranged on the discharging channel of the feeding block, for measuring the pressure of the material in the discharging channel.

[0015] The embodiment of the present application also provides an intestinal casing preparation device, which comprises an extrusion cylinder and the above-mentioned exchanger for constant-pressure feeding, and one extrusion cylinder is arranged at each end of the exchanger, and the extrusion cylinders are in communication with the feeding channels of the exchanger.

[0016] The one or more technical solutions provided in the embodiment of the present application have at least the following technical effects or advantages:

[0017] One extrusion cylinder is arranged at each end of the exchanger, the first-side extrusion cylinder extrudes the material into the discharging channel through the one-way valve in the feeding channel, when the first-side extrusion cylinder approaches the end, the second-side extrusion cylinder starts, at this moment, the pressure at the two ends of the second-side one-way valve is not enough to open the one-way valve, therefore, the second side has not yet fed at this moment, with the gradual increase of the feeding pressure of the second side, the pressure difference acting on the two ends of the control member gradually changes, because the cross section of the control end is greater than that of the back-pushing end, therefore, when the pressure of the second side reaches a predetermined value, the control member moves under the action of the pressure difference at the two ends, the push plate of the moving control member drives the microswitch of the first-side extrusion cylinder to retreat, at the same time, the first-side one-way valve is closed, then the second-side one-way valve is opened, and the feeding starts from the second side, the cycle action is repeated, the balanced feeding is ensured, the continuous and stable feeding of the high-pressure material is realized, and therefore, the situation that the collagen intestinal casing is bulged at the mouth and has uneven thin waist is solved, and the quality of the intestinal casing is improved.

[0018] Advantages of the additional aspects of the application will become apparent in the following description, which is given for the purpose of illustration and is not meant to limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0020] Figure 1 is a perspective view of the exchanger provided by the embodiment of the present application;

[0021] Figure 2 is a top view of the exchanger provided by the embodiment of the present application;

[0022] Figure 3 is a sectional view of the exchanger body provided by the embodiment of the present application;

[0023] Figure 4 is a schematic view of the feeding block provided by the embodiment of the present application;

[0024] Figure 5 is a schematic view of the discharging block provided by the embodiment of the present application;

[0025] Figure 6 is a schematic view of the one-way valve provided by the embodiment of the present application;

[0026] Figure 7 is a sectional view of the one-way valve provided by the embodiment of the present application;

[0027] Figure 8 is a schematic view of the control provided by the embodiment of the present application;

[0028] In the drawings: 1, feeding block; 11, first feeding channel; 12, control channel; 13, feeding cavity; 14, groove; 2, discharging block; 21, second feeding channel; 22, counter- pushing channel; 23, discharging channel; 3, control; 31, control end; 32, pushing plate; 33, counter-pushing end; 4, one-way valve; 41, sliding carriage; 42, valve sleeve; 43, valve core;

[0029] The mutual distance or size is exaggerated for showing the positions of the parts, and the schematic view is only for illustration. DETAILED DESCRIPTION

[0030] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] To address the technical problems mentioned in the background section, this invention proposes an exchanger for constant pressure feeding. By adding an ultra-high pressure cross-shaped exchanger, constant pressure feeding is achieved, thereby improving product quality. This cross-shaped exchanger can deliver high pressures ranging from 10 MPa to 50 MPa.

[0032] like Figure 1 , Figure 2 As shown, one embodiment of the present invention proposes an exchanger for constant pressure feeding, comprising: an exchanger body (i.e., feed block 1 and discharge block 2), a one-way valve 4, and a control component 3; as shown Figure 3 As shown, the exchanger body includes a discharge channel 23 and a feed channel (i.e., a first feed channel 11 and a second feed channel 21) symmetrically arranged on both sides of the discharge channel 23, a reverse push channel 22 and a control channel 12. The feed channel and the reverse push channel 22 are both connected to the discharge channel 23. A one-way valve 4 is provided in the feed channel. The one-way valve 4 opens and closes under the action of the left and right pressure difference.

[0033] The control components 3 are located on both sides of the discharge channel 23, and sequentially include a control end 31, a push plate 32, and a reverse push end 33, such as... Figure 8 As shown, the longitudinal section of the control end 31 is larger than the longitudinal section of the reverse thrust end 33. The control end 31 is located in the control channel 12 and the control channel 12 is connected to the feed channel. The reverse thrust end 33 is located in the reverse thrust channel 22. One end of the push plate 32 protrudes out of the exchanger body.

[0034] A squeezing cylinder is installed at each end of this exchanger. The first squeezing cylinder squeezes the material into the discharge channel 23 through the one-way valve 4 in the feed channel. When the first squeezing cylinder is about to reach its end, the second squeezing cylinder starts. At this time, the pressure at both ends of the second one-way valve 4 is not enough to open the one-way valve 4, so the second side has not yet been fed. As the feed pressure on the second side gradually increases, the pressure difference acting on both ends of the second side control component 3 gradually changes. Since the cross-section of the control end 31 is larger than the cross-section of the push end 33, when the pressure on the second side reaches the predetermined value (slightly less than the normal feed pressure), the second side control component 3 moves under the action of the pressure difference at both ends. The moving push plate 32 toggles the micro switch controlling the first squeezing cylinder, causing the first squeezing cylinder to retract. At the same time, the first one-way valve 4 closes, and then the second one-way valve 4 opens, and the feeding starts from the second side. This cycle repeats continuously, ensuring a balanced supply of material and achieving a continuous and stable supply of high-pressure material. This solves the problem of bulging (lumps) and uneven waist of collagen casings, thus improving the quality of the casings.

[0035] like Figure 1 As shown, the exchanger body includes a feed block 1 and a discharge block 2. The feed blocks 1 are symmetrically arranged at both ends of the discharge block 2. The feed blocks 1 and discharge blocks 2 are detachably connected, and the discharge channel 23 is disposed within the discharge block 2. Bolt holes are provided on the feed blocks 1 and discharge blocks 2, and the feed blocks 1 and discharge blocks 2 are connected by bolts; or bolt holes are provided on the feed blocks 1, and threaded holes are provided on the discharge blocks 2, and the two ends of the feed blocks 1 and discharge blocks 2 are connected by screws respectively.

[0036] like Figure 3 , Figure 4 As shown, the feed block 1 is provided with a first conveying channel 11, and the discharge block 2 is provided with a second conveying channel 21. The second conveying channel 21 is connected to the discharge channel 23. The first conveying channel 11 and the second conveying channel 21 are arranged coaxially, and the first conveying channel 11 and the second conveying channel 21 constitute the feed channel. By the extrusion of the extrusion cylinder, the material is extruded through the first conveying channel 11 and the second conveying channel 21 into the discharge channel 23.

[0037] The one-way valve 4 is disposed within the second conveying channel 21. It is understood that the one-way valve 4 could also be disposed within the first conveying channel 11. Figure 6 , Figure 7 As shown, the one-way valve 4 includes a valve sleeve 42, a slide 41, and a valve core 43. The slide 41 and the valve core 43 are fixedly connected. The slide 41 is slidably installed inside the valve sleeve 42. The valve core 43 has a frustum, and the conical surface of the frustum can abut against the end of the valve sleeve 42, thereby stopping the flow of material. One-way valve 4 feed side ( Figure 6 The pressure on the left side is greater than that on the discharge side.Figure 6 When the pressure of the right side (the right side of the middle) is greater than that of the left side (the left side of the middle), the valve core 43 moves to the right side, the one-way valve 4 is opened, and the side channel conducts feeding at this time. Figure 6 As shown, the back of the frustum is provided with a valve rod, when the left one-way valve 4 is opened, the valve rod of the left one-way valve 4 moves to the right and abuts against the valve rod of the right one-way valve 4. When the pressure of the discharge side of the one-way valve 4 is greater than that of the feeding side, the one-way valve 4 is closed, and the material flow is cut off.

[0038] As shown in Figure 3 , Figure 5 , the control channel 12 is arranged in the feeding block 1, the back-pushing channel 22 is arranged in the discharge block 2, and the control channel 12 and the back-pushing channel 22 are coaxially arranged. The end of the feeding block 1 away from the discharge block 2 is provided with a feeding cavity 13, which is a circular concave frustum, and the outer end of the feeding channel and the outer end of the control channel 12 are both in communication with the feeding cavity 13, that is, the extrusion pressure of the material simultaneously acts on the one-way valve 4 and the control member 3, respectively controlling the opening and closing of the one-way valve 4 and the movement of the control member 3.

[0039] As shown in Figure 2 , Figure 3 , Figure 4 , the end of the feeding block 1 towards the discharge block 2 is provided with a groove 14, and the control end 31 and the back-pushing end 33 of the control member 3 are both circular shafts, as shown in Figure 8 , the diameter of the control end 31 is greater than that of the back-pushing end 33, the push plate 32 is located between the control end 31 and the back-pushing end 33, the axis of the control end 31 and the back-pushing end 33 is perpendicular to the push plate 32, the push plate 32 is located in the groove 14 of the feeding block 1, and the width of the groove 14 along the axis direction of the control end 31 is greater than the thickness of the push plate 32, so as to facilitate the movement of the push plate 32 in the groove 14. As shown in Figure 2 , one control member 3 is installed on each of the left and right sides, the push plate 32 of the left control member 3 controls the closing of the right extrusion cylinder, and the push plate 32 of the right control member 3 controls the closing of the left extrusion cylinder.

[0040] Further, a pressure gauge is further arranged on the discharge channel 23 of the feeding block 1, which is used to measure the pressure of the material in the discharge channel 23.

[0041] The exchange function is realized as follows: the material in the left extrusion cylinder enters the exchange from the left feeding channel, enters the exchange through the left one-way valve 4, and then enters the next component from the discharging channel 23. When the left extrusion cylinder is close to the end, the right extrusion cylinder starts to advance, and when the right feeding channel is raised to a certain pressure, the different cross-sectional areas of the control part 3 control end 31 and the reverse thrust end 33 cause the forces generated on both sides to be different, which drives the push plate 32 to act in advance. The microswitch on the left extrusion cylinder is actuated by the push plate 32, a signal is transmitted to the left extrusion cylinder close to the end, and the left extrusion cylinder is allowed to retreat. At the same time, the left one-way valve 4 is closed, and the right one-way valve 4 is opened to start feeding. The cycle is repeated to ensure balanced feeding. According to the conveying material, different materials can be used for manufacturing, which is convenient for popularization to other industries.

[0042] Based on the above-mentioned exchange, the embodiment of the present application also provides a casing preparation equipment, which is provided with an extrusion cylinder and the exchange described in the above embodiment. The exchange is provided with an extrusion cylinder at each end, and the extrusion cylinder is in communication with the feeding channel of the exchange. Since the above-mentioned exchange has the above-mentioned technical effects, the technical effects of the casing preparation equipment using the exchange please refer to the above-mentioned embodiment.

[0043] Although the specific embodiments of the present application are described above with reference to the accompanying drawings, it is not a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications or changes made on the basis of the technical solutions of the present application without creative labor are still within the protection scope of the present application.

Claims

1. An exchanger for constant pressure feed, characterized by, The utility model relates to an exchange body, a check valve and a control piece. The exchange body comprises a discharge channel and feed channels, a back-pushing channel and a control channel symmetrically arranged on both sides of the discharge channel, the feed channels and the back-pushing channel are communicated with the discharge channel, and a check valve is arranged in the feed channel. The exchange body comprises a feed block and a discharge block, the feed block is symmetrically arranged at both ends of the discharge block, the feed block and the discharge block are detachably connected, and the discharge channel is arranged in the discharge block. The control piece is located on both sides of the discharge channel and comprises a control end, a pushing plate and a back-pushing end in sequence, the diameter of the control end is larger than that of the back-pushing end, the longitudinal section of the control end is larger than that of the back-pushing end, the control end is located in the control channel, the control channel is communicated with the feed channel, the back-pushing end is located in the back-pushing channel, one end of the pushing plate is out of the exchange body, and the pushing plate is located between the control end and the back-pushing end. One extrusion cylinder is installed at each end of the exchange, the first side extrusion cylinder extrudes the material into the discharge channel through the check valve in the feed channel, when the first side extrusion cylinder approaches the end, the second side extrusion cylinder starts, at this time, the pressure on both sides of the second side check valve is not enough to open the check valve, therefore, the second side has not yet fed at this time, with the gradual increase of the feed pressure of the second side, the pressure difference acting on both ends of the control piece of the second side gradually changes, because the cross section of the control end is larger than that of the back-pushing end, therefore, when the pressure of the second side reaches a predetermined value, the control piece of the second side moves under the action of the pressure difference between both ends, the moving pushing plate drives the microswitch of the first side extrusion cylinder, the first side extrusion cylinder retreats, at the same time, the first side check valve is closed, then the second side check valve is opened, and the feeding starts from the second side. A first material conveying channel is arranged on the feed block, a second material conveying channel is arranged on the discharge block, the second material conveying channel is communicated with the discharge channel, the first material conveying channel and the second material conveying channel are coaxially arranged, and the first material conveying channel and the second material conveying channel constitute the feed channel.

2. The exchanger for constant pressure feed of claim 1, wherein, The check valve is arranged in the second material conveying channel, or the check valve is arranged in the first material conveying channel.

3. The exchanger for constant pressure feed of claim 2, wherein, The check valve comprises a valve sleeve, a sliding frame and a valve core, the sliding frame and the valve core are fixedly connected, the sliding frame is slidingly installed in the valve sleeve, the valve core has a conical frustum, and the taper surface of the conical frustum can abut against the end of the valve sleeve to cut off the material flow.

4. The exchanger for constant pressure feed of claim 3, wherein, The control channel is arranged in the feed block, the back-pushing channel is arranged in the discharge block, and the control channel and the back-pushing channel are coaxially arranged.

5. The exchanger for constant pressure feed of claim 1, wherein, The end of the feed block away from the discharge block is provided with a feed cavity, and the outer end of the feed channel and the outer end of the control channel are both communicated with the feed cavity.

6. The exchanger for constant pressure feed of claim 5, wherein, The end of the feed block towards the discharge block is provided with a groove, the control end and the back-pushing end of the control piece are circular shafts, the axis of the control end and the back-pushing end is perpendicular to the pushing plate, the pushing plate is located in the groove of the feed block, and the width of the groove along the axis direction of the control end is larger than the thickness of the pushing plate.

7. The exchanger for constant pressure feed of claim 6, wherein, A pressure gauge is arranged on the discharge channel of the feed block and used for measuring the pressure of the material in the discharge channel.

8. The exchanger for constant pressure feed of claim 1, wherein, ​ 9. An apparatus for producing a casing, characterized by The apparatus comprises an extrusion cylinder and an exchanger for constant pressure feeding as claimed in any one of claims 1-8, and the exchanger is provided with an extrusion cylinder at each end, and the extrusion cylinder is in communication with the feeding channel of the exchanger.

Images